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The increasing use of multi screw pumps in modern industry

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The adoption of multi screw pumps has increased exponentially over the past half-decade, with the consumption volume rising from 146,000 units in 2015 to 202,000 units in 2022. Antonio Castilhos, vice president of national sales, Netzsch Pumps North America, explains what is driving this growth.

This rapid rise has been fueled by a number of factors, including major growth in the industries of end users, such as power generation, food and beverage, and chemical and petrochemicals. Other reasons include the modernization of the water and wastewater industries, the use of these pumps in hydraulic fracturing, and the sustained rise of urbanization and industrialization in the developing world.

In addition to increasing demand, there is also a growing awareness and understanding of the advantages of multi screw pump technology. Indeed, these technologies have benefited from significant improvements, including new designs and the ability to machine within tighter tolerances. Specialized products have also become available with varying levels of performance for a range of specific applications.

The advantages of multi screw pumps

Multi screw pumps provide a wide range of advantages across their various applications. First, these pumps are distinguished by their energy and operating efficiency, leading to significant reductions in energy cost and cost of maintenance. Specifically, Netzsch NOTOS multi screw pumps lead to 23.3% more efficiency when compared to other pumps on the market.

These pumps can also handle a wide range of media, including incompressible and highly-viscous products. This includes product that is abrasive, aggressive, corrosive, shear-sensitive, solids laden, low or high viscosity, and lubricating or non-lubricating.

High pressure and leak free, the performance of multi screw pumps is consistently high level. They handle the conveyed product gently and smoothly, also reducing the noise of the process. Because they are entirely made of metal, multi screw pumps can also tolerate high temperatures, easily withstanding temperatures above 572° Fahrenheit / 300° Celsius.

Multi screw pumps are also hygienic by design, making them ideal for applications in near-sterile environments, such as in the food, beverage, pharmaceutical, and cosmetics industries. These pumps are quite easy to clean because they are made of stainless steel and are rigorously polished, such that a pumped product cannot stick to the surfaces. This hygienic design allows for effective cleaning-in-place (CIP) and sterilization-in-place (SIP) processes.

How multi screw pumps work

The working principle of multi screw pumps is inherent in the manner by which their interlocking screws move the product. These pumps function via a drive spindle that transmits torque to multiple rotating, intermeshing spindles. As these screws rotate, the chambers move continuously from the suction side to the pressure side, effectively conveying the product. This operating principle is what drives the smooth and gentle pumping and high performance of screw pumps.

The importance of precision machining in manufacturing multi screw pumps

Precision machining is imperative for modern manufacturing. It ensures effective and smooth production, reduces costs and errors, increases efficiency, and demonstrates top quality. Using the High Efficiency Unique Design (HEUD) concept, NOTOS multi screw pumps are crafted to achieve precise tolerances and an optimized spindle profile, ensuring long service life and low life cycle costs. Moreover, the pumps have no axial forces acting on the ball bearing, as they are hydraulically balanced. This subjects the bearings to significantly less stress, minimizing the maintenance required for the pump.

Types of multi screw pumps

Multi screw pumps are available in two screw, three screw, and four screw varieties, each is particularly suitable for a specific set of industry applications. These pumps are the preferred choice of industries including oil and gas, maritime and shipping, power generation, process industries, tank farms, and petrochemicals.

A two screw pump, the NOTOS 2NS has one drive screw that transfers torque to the rotating intermeshing driven screw via a hydrodynamic film. These pumps are ideal for liquids with a range of qualities, from non-abrasive to slightly abrasive, corrosive and non-corrosive, as well as low to highly lubricating mediums. The NOTOS 2NS in particular is distinguished by its long service life when conveying non-abrasive to slightly abrasive product.

Three screw pumps are designed with two rotating, intermeshing driven screws. Three screw pumps are effective at conveying non-abrasive and non-corrosive product, in addition to liquids with low to medium viscosity. The NOTOS 3NS is a three screw pump that is lightweight and universally applicable with its small footprint, suitable for applications across industry verticals.

Four screw pumps, or geared twin screw pumps, such as the NOTOS 4NS, have two shafts and four screws. Here, torque is transmitted to the driven shaft by way of helical gears. Being hydraulically balanced, this design prevents metal to metal contact between single screws, reducing maintenance by considerable degrees and minimizing turbulence. These pumps are used widely across industries, achieving universal applicability.

Why multi screw pumps are made for modern industry

The positive displacement pump with the highest flow rate, multi screw pumps are ideal for myriad applications across modern industry. The rise of urbanization and industrialization in the developing parts of the world and the increased use of hydraulic fracturing are all factors that account for the increased use of multi screw pumps.

Moreover, these pumps provide immense value in many of the most technologically advanced endeavors in the world, including large scale scientific experiments such as space simulation chambers, gravitational wave detectors, and ultra-high vacuum chambers.

While multi screw pumps play a pivotal role in modern industry, Netzsch has been a leading manufacturer of these pumps for decades, having produced these pumps since 1979. Their use of the most advanced technology, combined with their decades-long depth of experience, enables Netzsch to craft pumps with the highest levels of reliability and durability.

Tanzania: Plight of Tanzanian Children Working in Mines

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CHILDREN from families living near mines find themselves in precarious situations that do not bode well for their rights and welfare. This was said recently by Ms Loyce Lema, the Executive Director of Environmental Human Rights Care and Gender Organisation (Envirocare) based in Makongo Juu, Dar es Salaam.

Ms Lema said child labour, including exploitive labour and harmful labour, was common in small-scale mines, while children ought to be well-groomed and cared for to be able to grow into maturity and be responsible adults and law-abiding citizens.

“Child labour includes domestic work like selling charcoal and mining activities to earn money for food, school fees and supporting the family. In small-scale mining, where there is inadequate occupational safety, as miners lack requisite mining technology, skills and protective gear, children are always at a distinct disadvantage,” explained Ms Lema as she called on the media to keep reporting on the plight of children working in mines.

Strategies to prevent child labour

As a response to prevent child labour in small-scale mines, Envirocare advocates a twofold-strategy. In relation to child labour prevention, the non-governmental and non profit organisations raises public awareness of the Law of the Child Act (R.E 2019) on the rights and duties of the child, appeals to the responsible authorities to put in place by-laws that protect children in hazardous small-scale mines and pushes for the reintroduction of children’s councils in primary and secondary schools and sensitises communities on children’s health risks in hazardous small-scale mines.

In relation to parental, it educates parents or guardians on the rights and duties of the child, appeals to law enforcers to hold accountable parents or guardians who violate the Law of the Child Act (R.E 2019) and urges parents or guardians and members of the public in general to protect the health of children.

Envirocare utilised meetings with local government leaders and representatives of women miners’ groups, organised a national workshop and the media to sensitise communities on children’s rights and parental duty to raise children in an enabling and safe environment, including distributing leaflets written in Kiswahili, which highlight children’s rights and welfare in mines.

“By the end of our project in July 2020, we were able to see a difference from the time we started it in August 2019. We have played a positive role in mitigating child labour and this has to be maintained lest the situation retrogresses,” Ms Ediltruda Michael, Envirocare Project Officer said.

Ghana Mineworkers Union supports 4 health and educational institutions in mining communities

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The Ghana Mineworkers Union (GMWU) of TUC-Ghana, as part of its contribution to the development of human resources and health and safety of Ghanaians, has presented health items and educational scholarship worth more than ¢50,000 to four institutions in the mining communities.

The beneficiary institutions are OLA Girls Senior High School at Kenyase in the Ahafo Region, Patmos Children’s Home at Obuasi in the Ashanti Region, Tarkwa Municipal Hospital in the Western Region and Adausena Health Centre at New Abirem in the Eastern Region.

OLA Girls Senior High School at Kenayse received hospital beds with mattresses, drip stands, bedside cabinets, high blood pressure device and pulse oxymeter for use in its infirmary. Two students people from Patmos Children’s Home at Obuasi were offered ¢8,000.00 scholarship per year to pursue their three year course at the Offinso College of Education. Tarkwa Municipal Hospital was presented with Cardiac Monitor for the Pediatric Unit, while Adausena Health Centre at New Abirem, received 55″ inch Television and Desktop Computer.

The donations were made recently as part of activities marking Ghana Mineworkers Union’s Maiden Miners week celebration, with the goal of getting closer to the people in the mining communities and together join forces with the chiefs and people to advocate improved infrastructure for the communities, given the huge resources that emanate from those areas which generate foreign exchange for Ghana.

The theme for the Maiden Miners week was Integrating Labour and Community interest for socio-economic development.”

The leadership of the GMWU made up of the National Chairman – Mensah Kwarko Gyarkari; General Secretary – Abdul-Moomin Gbana; Deputy General Secretary, Jerry Andoh and Head of Training and Programmes – Mrs. Vida Brewu, were joined by some members of the GMWU’s National Executive Council to make the donations to the beneficiary educational and health institutions and also paid courtesy calls on some chiefs at Abirem, Obuasi and Tarkwa. The chiefs included Nana Amoh Kyeretwie I of Abirem; Opagyakotwere Bonsra Afriyie II, Adansihene and Nana Kwabena Angu II, of the Apinto Divisional Council at Tarkwa.

The GMWU National Chairman, Mensah Kwarko Gyarkari said the visit to the chiefs was to assure them of the determination of the leadership of the GMWU to engage with them, so that together they can lead the crusade for better infrastructure for the mining communities.

He stated “we need the total support of our traditional chiefs to ensure that government initiates deliberate and coordinated interventions to addressing the huge infrastructure deficit in the mining towns. Infrastructure in our mining communities must reflect the huge revenue generated from there.”

The GMWU National Chairman indicated that since their members leave and work in such communities, improvement in the infrastructure, especially the road network will also impact positively on their living conditions so they can continue to give of their best in mining the precious minerals for the general good of Ghana.

The GMWU General Secretary speaking at the presentation at OLA Girls Senior High School at Kenayse, advised the students to study hard because the future that lies ahead of them is great.

He urged them to pay serious attention now to the teaching and learning, “so that you will be well prepared to contribute constructively to Ghana’s development in all fields of endeavours. He gave this assurance to the students. We look forward to welcoming you in the not too distant future into our fold as you get opportunities to work in the various mining companies.”

The GMWU General Secretary used the occasion to remind Ghanaian workers not to forget the sacrifices of their past union leaders to protect the rights of workers and also to advance their socio economic interest.  This according to Mr. Gbana is what the union has lived up to for the last 76 years, and counting, and will always strive to make the GMWU as a special purpose vehicle  at the forefront protecting and promoting  the rights, welfare and well-being of workers as well as championing better socio-economic facilities for Ghanaians in general.

The scholarship beneficiaries, Emmanuella Anokye and Joshua Obeng were grateful to the GMWU for supporting their education which, they described as a solid investment in their future.

The officials at the various institutions that benefited from the GMWU donations expressed their appreciation to the union leaders and entire membership for extending a helping hand to them with critical items to promote quality healthcare and education towards the national development course.

Ghana Mine Worker’s Union calls for full-scale investigation into frequent mine accidents

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The Ghana Mine Workers’ Union has called for a full-scale tripartite (Government, the Ghana Chamber of Mines, and Ghana Mineworkers’ Union) investigation into the frequent occurrences of mine accidents, for a more sustainable panacea to the issue.

The Union has also urged the Ministry of Lands and Natural Resources, and by extension the Minerals Commission and its Inspectorate Division, to as a matter of urgency conduct a thorough investigation into the recent underground accident that saw three of its valued members working in the same area trapped, out of which two managed to escape and one still missing since Tuesday May 18, 2021.

“The Union will also want to use this opportunity to renew its call and advocacy on the need for government to prioritize the ratification of International Labour Organization Convention 176 (Safety and Health in the Mines Convention) in order to further tighten and align the industry’s health and safety regulatory framework to globally acceptable standards”, it said in a statement.

This is coming after AngloGold Ashanti announced the suspension of operations at its Obuasi mine, over a missing staff.

“Globally, activities around mining in general are risky but the level of risk exposure doubles when the operation is underground. It is against this backdrop that the industry is heavily regulated in terms of occupational health and safety standards and best practices”, it said.

Furthermore, it said “Ghana as a prominent hub of mining in Africa has not fared badly in regulating the formal subsector of its industry but in recent times, a notorious trend of mine accidents and incidents with its consequential fatalities happening in some of the underground operations, particularly AngloGold Ashanti, Obuasi Mine, and its surrogate Underground Mining Alliance that has claimed three precious lives since June 2020, are becoming a blot on the enviable record chalked up by Ghana, especially after the structural adjustment programme in the 80s”.

As a trade union organization that has for 75 years sought the protection and welfare of workers in the industry, it said it takes an uncompromising opposition to these worrying and preventable fatalities that are shedding the blood of innocent workers in atonement for the profiteering motives of these multinational corporations.

The union therefore pointed out that it will not countenance any more of these avoidable deaths and shall therefore not hesitate to withdraw its services if urgent and robust steps are not taken to eliminate and prevent these needless accidents from becoming a recurrent feature of the workplace.

AngloGold Ashanti suspends Obuasi operations over missing staff

AngloGold Ashanti reported last week “with deep regret”, that an employee of its mining contractor at the Obuasi Gold Mine in Ghana, is “missing after a fall of ground in one of the operation’s mining stopes”.

In a statement, the miner said the incident occurred on Tuesday morning and “immediately triggered a search and rescue effort”.

“The mine rescue teams have been working tirelessly in difficult geotechnical conditions in the immediate area, to locate our missing colleague”, AngloGold Ashanti said.

Opportunities to export protective clothing

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THE Southern African region has abundant mineral resources, making mining activities some of the largest economic drivers across the countries.

Zambia, one of Zimbabwe’s key trading partners is big on copper and is the second largest copper producer in Africa after another SADC country, the Democratic Republic of Congo (DRC).

The mining industry in Zambia is an important pillar to its economy, also supported by cobalt and emerald mining activities.

Botswana is the largest producer of diamonds in Africa and the second in the world after Russia.

Gold, diamonds, platinum, and coal are the most well-known among the minerals and metals mined in South Africa, which is Zimbabwe’s largest trading partner.

Mozambique holds some of the world’s largest untapped coal deposits and the recent gas discoveries are expected to increase the contribution of mining activities to the nation’s economy.

In Angola, mining activities are concentrated around oil and diamonds.

This small scan of the mining sector in southern Africa demonstrates export potential for Zimbabwean companies to supply a wide range of support products and services to the mining companies.

Evidence shows that local companies are still to unlock opportunities in production and supply of protective clothing to mining companies spread across the Southern African region.

Apart from the mining sector, sectors such as agriculture, health and construction offer untapped opportunities for local companies to supply a wide range of protective clothing.

Protective clothing falls under the broad category of personal protective equipment (PPEs), which now includes overalls, safety boots, gloves, helmets, and eye protection equipment such as safety goggles.

Zimbabwean companies are already producing competitive and quality PPEs in the form of overalls, gloves, masks, aprons, dust coats and reflective clothing.

By comparison to products coming from other countries, the quality of Zimbabwe-produced protective clothing is high and preferred by most companies.

What is important now is getting the price right and to penetrate markets that are located around mining towns in the region.

Factors driving demand for protective clothing

In all countries in the region, it is a requirement for companies in the mining sector to provide their employees in certain sectors with protective clothing for their day-to-day operations.

Employers in sectors such as agriculture, mining, engineering, hospitality industry, health services, building and construction cannot afford to do without protective clothing.

This requirement is seeing the demand for PPEs going up in the region, thus unlocking export opportunities for local producers.

With most countries in the region focusing on increasing production in the mining sector and improved value addition and beneficiation, it is projected that more jobs will be created which in turn will increase demand for PPE.

Since 2014, the entire Southern African Development Community (SADC) has been pushing the idea that value addition and beneficiation of raw materials from the region should form the basis for industrial development, economic diversification and creating stronger linkages in the regional value chains.

This drive is therefore expected to see increased job creation and production along mining value chains, which in turn will increase demand for PPE.

Global prices of copper and cobalt have firmed up and this has bought good tidings to resource-rich countries like Zambia and the Democratic Republic of Congo.

The increase in the mining activities and the downstream effect that the mining sector has in these countries present market opportunities for local companies in the clothing sector.

Given the reputation Zimbabwe holds as the home to quality and reliable PPE products, some countries in the region are already looking at local manufacturers to satisfy anticipated growth and demand.

Currently, ZimTrade — the country’s trade development and promotion organisation — is working with some distributing companies in Zambia, Mozambique and DRC who are looking to import from Zimbabwe to meet demand coming from mining companies.

ZimTrade is planning an Outward Seller Mission to DRC in May this year to improve linkages between Zimbabwean producers of protective clothing and buyers in the market.

Apart from the changing dynamics from the mining sector driving demand of PPEs, the infrastructure development in most countries in the SADC region has seen an increase in demand for protective clothing.

In addition, the coronavirus pandemic has increased the demand for PPE across all sectors of the economies in the region.

People are now required to wear masks when going about their day-to-day activities, hospital staff has been beefed up to cope with the numbers of infected patients, further increasing the demand for medical coats, gloves and aprons, among other apparel.

Further to this, the region received good rainfall and farmers in countries such as Zambia, Mozambique, South Africa and Malawi are forecasting bumper harvests.

The harvest will inject more life into industries down the value chain that is expected to employ more people in areas such as harvesting, milling, packing, sales, and distribution.

All these numbers will need to be provided with work suits, overalls, masks, gloves, and safety shoes.

Growing exports to meet growing demand

Zimbabwe is already exporting clothing products, including protective clothing and there is potential to do more.

According to Trade Map, Zimbabwe’s exports of clothing items increased by 77, 1 percent from US$6, 7 million in 2015 to US$12 million in 2019.

The major market remained South Africa accounting for more than 70 percent of total export throughout the entire period.

Zambia, Mozambique, Malawi, and the Democratic Republic of Congo are also importing locally manufactured clothing items.

There is a need to leverage on existing trade agreements to diversify our exports into the region.

Zimbabwe is a signatory to bilateral and multilateral trade agreements which allow local companies to
export clothing articles duty-free and quota-free.

There are bilateral trade agreements with Malawi, Namibia, Botswana, and Mozambique.

The country is also a signatory to the multi-lateral trade protocols of SADC and COMESA, which target to improve access to markets in the region.

To improve access to markets, clothing manufacturers should also invest in understanding their markets and come up with products that meet their requirements.

For example, companies that operate in a hot climate require protective clothing made of cotton, which is cooler, absorbs sweat and is quite comfortable to wear in summer.

Companies in countries with cold winter periods usually require protective clothing that provides warmth in addition to protection for their employees.

Lincoln Lubrication SA cements deal to install automated fire suppression systems at Nigerian cement plant

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Seventeen miners at a coal mine in southern Zambia survived gas suffocation while working underground, a mining official said on Tuesday.

The accident happened in the early hours of Monday at Collum Coal Mine situated in Sinazongwe district at shaft 6 underground when suspected carbon monoxide gas filled the underground passage as the miners were working.

Acting Mine Manager Oliver Kabango said the incident resulted in some of the miners fainting although there were no fatalities, according to the state-run news agency, the Zambia News and Information Service.

He said the miners were taken to a local hospital where they were treated for gas suffocation and later discharged.

Safety officers have since been dispatched to the accident scene to ascertain the source of the carbon monoxide, he added.

District Commissioner Sheena Muleya, who visited the mine, expressed concern over the accident and urged management to ensure maximum safety in the operations

17 miners survive gas suffocation in southern Zambia

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Seventeen miners at a coal mine in southern Zambia survived gas suffocation while working underground, a mining official said on Tuesday.

The accident happened in the early hours of Monday at Collum Coal Mine situated in Sinazongwe district at shaft 6 underground when suspected carbon monoxide gas filled the underground passage as the miners were working.

Acting Mine Manager Oliver Kabango said the incident resulted in some of the miners fainting although there were no fatalities, according to the state-run news agency, the Zambia News and Information Service.

He said the miners were taken to a local hospital where they were treated for gas suffocation and later discharged.

Safety officers have since been dispatched to the accident scene to ascertain the source of the carbon monoxide, he added.

District Commissioner Sheena Muleya, who visited the mine, expressed concern over the accident and urged management to ensure maximum safety in the operations.

DR Congo ministers call for eased lockdown for miners

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DR Congo’s mines ministry has proposed lifting lockdowns at mining operations after workers went on strike to protest compulsory on-site confinements during the coronavirus outbreak.

Human rights organisations said earlier this month that mining workers in the vast African country were being forced to stay in overcrowded, unsanitary accommodations.

During a council meeting on Friday government ministers acknowledged the “abysmal housing conditions” of employees in the mineral-rich Katanga region.

Since a lockdown put in place on March 10 by companies producing cobalt and copper, many employees have been forced to work beyond their eight-hour shifts with no additional pay, according to a group of local and international NGOs.

At some sites, “Congolese workers were not given adequate food and water rations, were not provided with appropriate sleeping arrangements and, in some cases, were not given a choice to accept the confinement without fear of losing their jobs or other forms of reprisal,” the organisations, including Amnesty International and Human Rights Watch, said.

The workers are at a great risk for COVID-19 due to the lack of personal protective equipment and handwashing facilities, the group said in a letter to mining companies, stressing that the findings were “of great concern”.

– ‘Forced lockdown for 68 days’ –

One mining giant, Tenke Fungurume Mining (TFM), confined its employees for two months to its site located between Lubumbashi and Kolwezi.

“We went on strike due to a forced lockdown for 68 days without seeing our women and children. They paid us a special bonus of $500 (450 euros) per worker,” employee Joel Muyeba Kalambwe told AFP.

The information was confirmed to AFP by a TFM executive, who spoke of an agreement with around 3,000 confined workers and of “a premium of ten dollars per day of lockdown”.

The country’s mines ministry “has proposed the deconfinement of workers at mining sites following the strike movements of TFM workers in Lualaba province and those of KCC (Kamoto Copper Company, a subsidiary of Glencore) in Upper Katanga,” according to the minutes of the ministers’ meeting on Friday.

DRC President Felix Tshisekedi ordered a state of emergency on March 24, which has been extended several times by a vote in parliament.

Under the measure, borders, schools, places of worship, bars and restaurants are all closed, and gatherings of more than 20 people are banned.

While the country has not issued a stay-at-home order, partial confinements have been decided at the local level — as they were recently in Lubumbashi, the capital of Upper-Katanga Province in the country’s south-east.

The Democratic Republic of Congo has so far officially recorded 5,672 coronavirus infections and 125 deaths.

The country produces 70 percent of the world’s cobalt, an essential element in the manufacture of batteries for electric cars.

The mining industry is becoming SA’s new Covid-19 epicentre

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About half of the total Covid-19 coronavirus cases in the North West, which has almost tripled its numbers in just a week, are in the mining industry.

North West had recorded a total of 523 Covid-19 cases by Sunday, while the Minerals Council SA revealed that the mining industry in the province had 198 confirmed cases on Friday.

This has raised fears that the industry is becoming a new epicentre and that the Covid-19 curve could remain on a steep upward trajectory, with even more mine workers, including those who had been at home in neighbouring countries, set to return to work in the coming weeks.

In its latest figures, the Mineral Council SA has revealed that the mining industry has recorded 572 Covid-19 cases – Gauteng leads with 294 cases; it is followed by North West and then Limpopo with 75.

We have told mining companies that those bringing people back must say where they are coming from and each returning mine worker must go into a 14-day quarantine before getting to work.

Provincial Health MEC Madoda Sambatha

Cases skyrocket

North West has recorded a sudden spike in numbers, which went from 143 cases on May 29 – with only nine new cases recorded on the day – to 364 a week later.

The province recorded 49 new cases on Thursday alone, 44 of which were in the mining areas of Rustenburg and Matlosana, which registered 24 and 29 cases, respectively.

The Bojanala Platinum District Municipality, under which Rustenburg falls, was at 66 cases just more than a week ago. The number has since trebled and was at 215 by Friday. Rustenburg was at 198 cases on the same day.

Matlosana had 44 cases just a week ago, while the district under which it falls, Dr Kenneth Kaunda District Municipality, had a total of 60 cases on May 29. Matlosana had registered 98 cases, while the district had 121.

Province points finger at mines

Provincial Health MEC Madoda Sambatha said the numbers in North West showed the “direct impact of mining operations” on Covid-19 cases, and emphasised the need for things to be done differently as mining companies bring back most of their employees in lockdown level 3.

He pointed out that a mining company in the area had recorded 78 cases at one operation site in the area.

Sambatha reiterated the need for precautionary measures in the industry to be beefed up as more mine workers return to work.

“We have told mining companies that those bringing people back must say where they are coming from and each returning mine worker must go into a 14-day quarantine before getting to work. Contact tracing must also not only be limited to workplace contacts, but must include where the worker stays and where they originally came from,” he said.

Where there has been large-scale testing, a high number of cases have been picked up – this is mainly in the gold mines on the West Rand in Gauteng, where Mponeng Mine has 196 cases.

Head of health at the Mineral Council SA Thuthula Balfour

Sambatha also expressed concerns about asymptomatic people.

“There is a mine in Rustenburg where five people worked for almost five days with their teams and only reported being sick themselves when they were underground. It was later discovered that they had 68 contacts who also tested positive,” he said.

“Another challenge is that people were lying during the screening process. We have discovered that some people told their employees that they had remained in North West during the lockdown, but they were in fact in other provinces, including the Eastern Cape.

“The reason coal mines in Mpumalanga were not registering a high number of cases was because workers there never went into lockdown – they continued working and living in same area. The mining industry must be ready to handle the return of workers differently this time, and quarantine should be taken very seriously.”

Mining industry promises to improve

The Minerals Council SA has promised to implement aggressive screening of workers before they return to work, as well as quarantining those who return from neighbouring countries.

The council said about 9 500 mine workers were expected to return mainly from Mozambique and Lesotho.

Head of health at the Mineral Council SA, Thuthula Balfour, said not all of the workers were going to come back to South Africa because some were susceptible to catching Covid-19, such as those who were older than 60 and others who had comorbidities that were not under control.

The council said screening was going to be done on workers in their countries before they boarded transport organised by their employer to South Africa, and that none of those presenting symptoms of the virus were going to be allowed to travel.

Meanwhile, Balfour said, the industry had so far screened 227 000 of its workforce of about 450 000 to arrive at the recently announced 572 cases.

She said more cases were discovered where most tests were done.

“Where there has been large-scale testing, a high number of cases have been picked up – this is mainly in the gold mines on the West Rand in Gauteng, where Mponeng Mine has 196 cases,” she said.

Teledyne Gas and Flame Detection to showcase reliable and performant gas detection solutions at Adipec

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One of the largest events of its kind, ADIPEC 2022 (31 October – 3 November, Abu Dhabi, United Arab Emirates)will host more than 150,000 energy professionals and visitors worldwide.

With over 140,000 gross square metres of exhibition space across sixteen halls, there will be plenty to see, especially for any companies seeking reliable, high-quality, proven gas detection and monitoring technologies. From Booth 9413 in Hall 9, Teledyne Gas & Flame Detection will shine the spotlight on several proven products that enhance safety and bring even more capabilities to the oil and gas sector.

Visitors to the booth will also discover how Teledyne will meet the gas detection demands of the giant Hail and Ghasha sour gas project that is currently in development off the UAE coastline.

Among the class-leading products on display from Teledyne GFD will be the GD1 hydrogen sulphide (H2S) laser detector, which features a unique, customisable laser diode that, rather than emitting a conventional straight beam of light, travels as a cone from one point to another. In other words, the beam expands after transmission and is almost a metre in diameter when it reaches the receiver. As a result, the beam can penetrate harsh environments that competitor solutions may find difficult. The GD1 also performs real-time auto-calibration and auto-proof testing, and provides a very high sampling or detection rate i.e., 8000 times/sec. Well over 800 units have been deployed in the field since 2011.

Also in the spotlight will be the GD10P infrared gas detector with full firmware upgrade, enhancing the product’s performance in high demand mode SIL2 approved applications. In comparison with other infrared gas detectors, the new firmware adds further to GD10P’s differentiating factors, which include a solid-state infrared source and a 15-year warranty.
Moreover, despite the shortages experienced in the global semiconductor industry, we have been able to ensure business continuity for most of our products. As such we demonstrate our operational excellence and continue to respond quickly to almost any need. With GD10P, we prove our product leadership, offering to our partners leading-edge products and services. In fact, we have recently sold our 100,000th.

Elsewhere on the booth, ADIPEC visitors will find the GD10PE infrared point gas detector, which is ideal when users need fast, reliable detection of low gas concentrations. With a measuring range of 0-20% LEL, the GD10PE is five times more sensitive than standard point detectors.

Another exciting innovation launching at the show is Spyglass™, a brand-new range of flame detectors offering integrated high-definition CCTV video that facilitates the clear, rapid imaging of fire and people at unprecedented distances. When connected to a DVR/NVR, the rescue team becomes aware of the exact situation before entering the hazardous area. A range of high-capability models is available offering a selection of different detectors. Visitors should head for the booth to find out more.

Teledyne’s product portfolio houses a variety of detection technologies, including fixed, portable and wireless, as well as area monitors. Sometimes a mix of solutions can improve reliability and availability, as evidenced in the company’s proposal for the enormous Hail and Ghasha sour gas development, which is set to go live in 2024.

The main contractor tasked Teledyne GFD to ensure reliable wireless gas detection with 24-7 availability. As a result, the company proposed fixed gas detectors connected via a wireless mesh as a primary means of detecting LEL explosive gases and hydrogen sulphide gases. The solution also includes a second line of defence, utilising a mesh network of Teledyne’s field proven BM25 wireless area monitors. Implementation commenced in June 2021, with the wireless mesh network featuring independent supervision from field-mounted controllers and remote displays.

The BM25 will be on display at the booth, alongside other Teledyne industrial gas and flame detectors – both fixed and portable, including the wireless CXT. Personal gas monitors on view will include the PS200, PS500 and Protégé ZM, while a ‘Solution Wall’ will showcase DG MOS detector with Telecapteur asset management software, but also the high temperature SIL 2 DF flame detector.

Any company seeking the latest detection and monitoring technologies to keep oil and gas operations running safely, efficiently, and profitably, should look no further than the innovative solutions available from Teledyne GFD. ADIPEC visitors are welcome to discuss their specific challenges and requirements for which we will have an experienced and knowledgeable team on the booth.

At Teledyne Gas & Flame Detection, we focus on delivering superior customer value which means operational excellence and product leadership.

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For more information, please contact:
Teledyne Oldham Simtronics SAS
ZI Est, Rue Orfila
CS 20417
62027 Arras cedex
France
Tel:  +33 3 21 60 80 35
Email: nathalie.dewisme@teledyne.com
Web: www.TeledyneGFD.com