Displaying items by tag: Grinding
UK: Welding Alloys has launched MillCarb, a repairable welded ceramic composite alloy providing an engineered wear protection solution for grinding components. It combines the wear resistant properties of advanced and complex ceramics with graded grain sizes and the shock absorbing properties of a metallic matrix, creating a ceramic metal matrix composite. The company says that these features have been incorporated into a weldable solution that is capable of multiplying the life of components by offering a repairable alternative. MillCarb is currently being trialled with industrial partners.
Cooperativa Boliviana de Cemento, Industrias y Servicios orders cement mill from FLSmidth
04 December 2017Bolivia: Cooperativa Boliviana de Cemento, Industrias y Servicios (COBOCE) has ordered an OK 43-4 vertical cement mill from FLSmidth for its Irpa Irpa plant near Cochabamba. The unit will have a production capacity of 130t/hr. The order includes a complete range of equipment from mill feeding bins, grinding and cement transport. FLSmidth will also supply equipment from its product brands, such as planetary gear units from FLSmidth MAAG Gear, fabric filters from FLSmidth Airtech, a control system and plant automation from FLSmidth Automation.
“We are proud to deliver the first cement vertical roller mill to COBOCE making it the third out of five Bolivian suppliers choosing our cement vertical roller mill technology. This order underlines FLSmidth’s strong position in Bolivia,” said Per Mejnert Kristensen, Group Executive Vice President, Cement Division.
Ramco to ramp up grinding capacity
07 August 2017India: Ramco Cements is planning to make an investment of about US$172m in various projects, on the back of anticipated higher demand for cement in the near future. The company will invest in a range of projects, including expansion of its satellite grinding unit capacity. This move will enable the company to increase its presence in Odisha, Andhra Pradesh and West Bengal and will raise its total capacity to 7.1Mt/yr from 4.0Mt/yr at present. Expansions will be undertaken at its Visakhapatnam and Kolaghat plants, as well as at a new new grinding unit in Odisha. The projects will be commissioned within 18 months.
Boral applies for new grinding plant
27 July 2017Australia: Boral Cement has ¬applied to the Environment Protection Authority (EPA) to run a 1.3Mt/yr cement grinding plant at Geelong in Melbourne, Victoria for 24 hours per day. The proposed facility would enable the company to unload from ships to be delivered to the production site via covered belt conveyors.
“The new site is directly adjacent to the wharf complex, which would allow efficient unloading of clinker from ships,” a Boral spokesman said when the company first raised the concept in late 2016. “Importantly, the site is also surrounded by other large industrial premises, meaning it is well separated and largely hidden from residential areas.” Boral has also proposed constructing new equipment, including an enclosed ball mill and covered store, outdoor product stockpiles and clinker unloading and delivery infrastructure.
EPA development assessments manager Tim Faragher said that Boral Cement required a works approval before starting any construction works on the clinker grinding mill. “Work approvals are ¬required for industrial and waste management activities that have the potential for ¬significant environmental impact,” said Faragher. The EPA now has four months to make a decision on Boral’s application.
Cimencam to build third cement plant in Cameroon
29 March 2017Cameroon: Cimencam, a subsidiary of LafargeHolcim via LafargeHolcim Maroc Afrique (LHMA), has announced that it will build a 0.5Mt/yr cement grinding plant at Nomayos, near Yaoundé with a budget of Euro42.6m. The plant will be the cement producer’s third in the country, according to the Échos Quotidien newspaper. Cement from the new plant will be sold locally as well as elsewhere in Central Africa. LHMA owns a 54.74% share in Cimencam.
Malaysia: Engineering company Christian Pfeiffer has released more information about a grinding plant that it completed at the Mambong cement plant for Cahya Mata Sarawak (CMS) in 2016. The engineering procurement and construction (EPC) contract was originally signed in mid-2014 and it also included raw material handling, finished product storage silos and an automated packing plant.
The grinding plant consists of a two-compartment ball mill with a diameter of 4.8m x 15m effective grinding length equipped with a QDK 248-Z separator designed to produce 150t/hr of cement with a fineness of 3500cm²/g according to Blaine. The mill is supported by slide shoe bearings and driven by a lateral drive unit consisting of a girth gear and two pinion gear box with a floating shaft and a 5600kW main motor. The feed materials - clinker, gypsum and limestone - are dosed separately via weigh feeders, while fly ash can be added directly to the separator by a bucket elevator.
The ball mill is equipped with progressive lifting and classifying liners and filled with Allmax grinding balls. The material flow from the first to the second compartment is regulated by a Christian Pfeiffer intermediate flow-control diaphragm in Monobloc design, to ensure an ideal material level and particle size for fine grinding in the second compartment. The fine ground cement leaves the mill by a discharge diaphragm, in a Christian Pfeiffer Monobloc design, and is fed to the separator circuit by a bucket elevator. Separation of the ground cement is achieved by a bag filter application with minimum remaining dust content in the clean gas of below 10 mg/Nm³.
The cement produced is stored in two interchangeable 10,000t silos. One is a mono-cell and the other duo-cell, allowing for the production and storage of three different types of cement. Each silo is equipped with two bulk loading devices for conventional silo truck loading. Cement for the adjacent packing plant is transported via air slides and a bucket elevator. There, it can be filled into big-bags or cement paper bags by a rotary packer at a rate of 3000 bags/hr. At this stage the single packed cement bags can either be directly loaded on trucks or be transferred to a palletiser. The automated palletising system is designed for both pallet and palletless operation.
CMS officially launched the 1Mt/yr grinding plant in late 2016.
JSW Cement increases capacity of Bellary grinding plant
16 January 2017India: JSW Cement has increased the capacity of its Bellary cement grinding plant in Vijay Nagar to 3.4Mt/yr from 1Mt/yr. The cement producer said that the additional capacity would help it strengthen its distribution network throughout south of the country. The chairman and managing director of JSW Group, Shri Sajjan Jindal, and other dignitaries inaugurated the new unit.
Cementos Argos to upgrade San Lorenzo grinding plant
21 October 2016Honduras: Argos Honduras plans to spend US$25m towards upgrading its San Lorenzo grinding plant. The site has a production capacity of 300,000t/yr and it will develop its range of Ordinary Portland Cement products, said Argos Honduras director Harry Abuchaibe to La Prenza newspaper. The plant, formerly known as Cesur Grinding Station, was purchased from Lafarge in 2013 as part of a package of assets acquired at that time. Argos Honduras also operates a 1Mt/yr integrated cement plant in the country at Comayagua.
Redcliff cement plant to be completed by end of October 2016
12 October 2016Zimbabwe: Mortal Investments Manufacturing Company expects to complete construction of its US$10m cement plant in Redcliff by the end of October 2016. The Chinese investor started construction of the project in August 2016 and testing is set to begin by the end of October 2016, according to the Business Chronicle newspaper. Commissioning is scheduled for the end of 2016. The plant will use slag to make its cement.
India: Orient Cement is to buy three cement plants from Jaiprakash Associates for US$292m. The cement producer will acquire a 74% stake in Bhilai Jaypee Cement for US$217m from Jaiprakash Associates and the Nigrie cement grinding plant from Jaiprakash Power Ventures for US$75m, according to the Press Trust of India.
Bhilai Jaypee Cement, a joint venture between Jaiprakash Associates and the Steel Authority of India Limited (SAIL), has a 2.2Mt/yr integrated Portland slag cement plant in Satna Madhya, Madhya Pradesh and a grinding plant in Bhilai, Chhattisgarh. The acquisition will also give Orient Cement access to limestone reserves and other raw materials including slag. The Nigrie cement grinding plant in Singrauli, Madhya Pradesh, has a capacity of 2Mt/yr.
"The current proposal to acquire BJCL from JAL is a significant step towards accomplishing our current mission of reaching a capacity of 15Mt/yr by 2020," said CK Birla Group chairman CK Birla, owner of Orient Cement. At present, the cement producer has 8Mt/yr from three plants in Telangana, Maharashtra and Karnataka.