Displaying items by tag: Conveyor

US: CalPortland has commissioned a new cement grinding mill and distribution system at its Oro Grande cement plant in California. The US$58.5m project includes the construction of the finish ball mill and two new cement shipping lanes with two new distribution silos. It completes a partial plant modernisation program that was originally completed in 2008, prior to the acquisition of the facility by CalPortland. The Oro Grande cement plant was purchased from Martin Marietta Materials in mid-2015.

“The addition of this modern finish mill and efficient distribution system allows the plant to operate to the best in class standards as originally designed. It will help provide the industry with the additional supply required for necessary rehabilitation and rapidly developing infrastructure in California and Nevada,” said Steve Regis, Senior Vice President Corporate Services, CalPortland.

The project began in January 2018 and was constructed by general contractor ThyssenKrupp and sub-contractor TIC (The Industrial Company), in collaboration with CalPortland’s Engineering Services team.

The mill is a Polysius two compartment mill with production capability of around 180t/hr. It is equipped with motor, mill and separator technology as well as cement cooler design technology. The system also employs mechanical conveyance (bucket elevator) to convey finished product to the new silos, reducing its energy requirements. These additional systems are being added to the Oro Grande plant.

Guatemala: Cementos Progreso says that its new San Gabriel cement plant is currently being tested. Plant manager Heber Barrios Valenzuela said that this stage of its set-up began in 2018 and will continue throughout 2019, according to the Prensa Libre newspaper. The unit had an investment of US$500m. Work on the project started in 2008 and construction work began in 2013.

The new integrated cement plant will have a clinker production capacity of 4500t/day when fully operational. Key features include a 1.5km conveyor from the quarry to the plant with a capacity of 1000t/hr. After raw material grinding, pre-heating, the kiln and the cooler the production line has a 70,000t clinker silo. This is followed by two vertical cement grinding mills, each with a capacity of 220t/hr. For packaging and despatch the plant has four cement silos. Two of these have a capacity of 10,000t for bulk cement. The other two have a capacity of 5000t for bagged cement. The plant also uses a 0.15Mm³ rainwater reservoir to store water to cool machinery.

Sweden: Conveyor belts supplied by Germany’s Continental are being used in the Förbifart Stockholm road infrastructure project. HeidelbergCement’s aggregate company Jehander is using Continental steel cord conveyor belts at its Löten quarry near Stockholm to allow rubble from tunnelling to be reused for road construction. In addition, drilling machines from Epiroc are using Continental DrillMaster tyres to provide high cut resistance, good traction and stability.

Overall, around 5.5Mt of rock will be extracted to build the tunnels required for the new bypass. A series of conveyor belt systems are being used to transport the extracted rock to three temporary ports that have been set up for the project. The rubble is taken across the waterways by inland vessels from the construction site in Stockholm to Löten. The rubble is then reused as concrete, mostly for road construction, or it used for local construction.

US: Conveyor Components Company has released VA and VAX models, a bucket elevator alignment control product, to its product line of conveyor controls and accessories. The VA and VAX are designed to indicate when the head or boot section of a bucket elevator drifts too far out of alignment. They can be used to signal a problem or simply shut down the bucket elevator leg. This control device has a sequential two-pole double-break microswitch rated for 20A at 120VAC, 240VAC or 480VAC. The metal roller is bi-directional, and designed to survive in difficult environments.

Nigeria/Senegal: Aumund Group will supply equipment for projects managed by China’s Sinoma for Dangote Cement projects in Nigeria and Senegal.

For Dangote’s Obajana Line 5 and Okpella 6000t/day plants, Aumund will supply three belt bucket elevators with a capacity of 660t/hr to convey raw meal and to feed raw meal to the preheater towers at 520t/hr. Three further Aumund belt bucket elevators with a capacity of 480t/hr will convey cement to the silos. An Aumund pan conveyor with a weighing scale mechanism and a capacity of 500t/hr, running from the coolers to the clinker silos, and three further Aumund pan conveyors under the clinker silo, round off this machinery package.

Schade Lagertechnik, a subsidiary of Aumund, will also supply equipment for these plants. This includes a stacker with a capacity of 3500t/hr for Obajana and another at 2160t/hr for Okpella, as well as a portal reclaimer to operate at 800t/hr in the limestone storage of each plant. Additional stockyard equipment completes the supply package.

For Dangote’s Apapa and Onne terminal projects, Aumund Beijing will supply a double bucket elevator to convey clinker to the silos at a capacity of 1200t/hr, and several other chain bucket elevators. Elevators to convey gypsum to the bunkers will have a capacity of 720t/hr at Apapa and 480t/hr at Onne. Two 1600 Series Samson material feeders with a handling capacity of 400t/hr of clinker, two Aumund telescopic chutes and two truck loaders for clinker will also be supplied to each terminal.

Aumund has also received an order to supply a belt bucket elevator with a capacity of 300t/hr to convey cement to the new silo at the Dangote Cement Senegal Expansion Project.

Algeria: Germany’s Aumund has received two clinker conveying equipment orders for cement plants at Zahana and Bechar. The two orders comprise 26 belt and chain bucket elevators, two bucket apron conveyors, ten pan conveyors and ten drag chain conveyors. No value for the deals has been disclosed.

The first order is for the 4500t/day Société des Ciments de Zahana (SCIZ) plant near Oran. Here three chain bucket elevators with centre distances ranging from 22.5 - 34.9m and capacities from 50 - 220t/hr will be used to convey cement and clinker. 11 belt bucket elevators (22.5 -116.1m) will convey raw meal, cement and clinker with capacities between 190 - 680t/hr. The Aumund bucket apron conveyor, with a centre distance of 61.1m and a capacity of 360t/hr, will join the five Aumund pan conveyors (18.3 - 106.8m, capacity 300 - 360t/hr) in conveying clinker. The ten Aumund drag chain conveyors with centre distances between 6.1 - 33.8m will be used in clinker dust extraction and are designed for conveying capacities from 15 - 80t/hr.

The second order is for the 3200t/day Bechar cement plant. This order was placed by China’s CBMI to Aumund Beijing with support from Aumund France. This plant will operate 15 Aumund belt and chain bucket elevators, five Aumund pan conveyors and an Aumund bucket apron conveyor for its bulk materials handling. The bucket elevators, with centre distances ranging from 11 - 102.9m, will convey raw meal, cement and clinker with capacities from 70 – 480t/hr. The five pan conveyors, with centre distances from 22.2 - 89.8m, will convey their loads at up to 480t/hr. The Aumund bucket apron conveyor in Bechar (centre distance 88.5m, capacity 200t/hr) will also convey clinker.

Germany: Aumund is promoting its chain products for use in conveyors. The conveyor engineering company is emphasising its 40-year experience in designing chains for applications in heavy production industries across over 18,000 references in more than 140 countries. It says it has more ‘heavy duty, highly rated’ chains in operation than any other supplier. It adds that its chains can handle the differing requirements between a large ball mill circuit bucket elevator or a high capacity steep pan conveyor.

US: Illinois Cement has installed a Roll Gen System supplied by Martin Engineering at its La Salle plant in Illinois. The power station supplies energy to a remote conveyor location at the site. The patent-pending design uses the kinetic energy of the moving belt to generate enough electricity to drive an automated dust suppression system, a pneumatic belt cleaner tensioner and a series of air cannons, helping operators at the Illinois Cement Plant reduce dust and spillage, increase cargo flow efficiency and minimise labour costs for cleaning and maintenance.

The Martin Roll Gen System is designed to create a self-contained mini power station that allows operators to run electrical monitoring systems, safety devices and a variety of other components. Martin Engineering says that the device is considered a ‘significant’ step toward eliminating power production obstacles, as conveyors move into the next generation of ‘smart systems.’

“Running auxiliary power can be both complicated and costly, requiring expensive labour and oversized cables to accommodate the inevitable voltage drop over long runs, as well as transformers, conduit, junction boxes and other components,” said Andrew Timmerman, Product Development Engineer at Martin Engineering. “The entire project has been a success, particularly in how many man-hours we save in maintenance and upkeep. The tensioning system does a great job, and the Roll Gen puts out enough power that we’re considering adding an automated secondary cleaner and a vibrating dribble chute to capture even more carryback.”

Martin Engineering builds products for bulk materials handling. The company has it headquarters in Neponset, Illinois. It has offices in Brazil, China, France, Germany, Indonesia, Mexico, Peru, Russia, South Africa, Turkey, India and the UK.

US: Sempertrans USA has officially opened its new Atlanta warehouse in Georgia. The event was attended by distributors and end-customers. The Sempertrans USA team which includes sales, customer service, technical management and finance moved into the new location in December 2017. At the beginning of June 2018 Sempertrans USA was able to process, cut and slit to order and distribute heavy-duty textile belts from the unit. Sempertrans belts from the site can be slit within 24 hours and then distributed across North America.

“Our North America Team is ready to tackle any challenge. From impact and abrasion resistant belt solutions, our wide product portfolio ensures safe and highly efficient conveying even under the most demanding conditions,” said Wes Tyre, Head of Sales North America.

Sempertrans is a conveyor belt manufacturer. Its portfolio includes textile belts and steel cord belts for applications in the cement, mining and steel industries as well as other applications such as ports, quarries and the chemical industry.

China: Austria’s Semperit has closed its Sempertrans Best (Shandong) Belting plant in Shandong. The decision was made as part of review of the group’s production footprint. The plant had a higher margin than other sites. The closure is also expected to reduce the complexity of operations at the group level. 120 employees will be affected and the shutdown is expected to burden the group’s earnings before interest and taxation (EBIT) by Euro10m in 2018.

The groups subsidiary in Shandong was founded by Semperit as a joint venture with the state-owned energy company Wang Chao Coal & Electricity Group in 2010. The Chinese partner currently holds a 16.1% stake. The production site manufactures textile and steel cord belts and has served the export markets and the Chinese market so far.