Displaying items by tag: Mill

Germany: HeidelbergCement has decided to modernise its Burglengenfeld cement plant in Germany with parts and services from IKN and Gebr. Pfeiffer.

IKN won the contract for the engineering, supply and installation of a complete 4000t/day pyro line, from raw meal feeding to clinker discharge. Included in the scope of supply are integration engineering, supply and installation of add-on components for the raw meal grinding plant. The upgraded plant will feature state-of-the-art technology to comply with the targeted production level and future emission limits.

The new line will consist of a two-string, five-stage preheater tower with inline calciner. IKN's preheater and calciner design will ensure minimum pressure drop at maximum performance and high efficiency. The kiln line will be optimised to use of a variety of alternative fuels. Among several innovative features will be a tertiary air duct damper, which has proven successful in operation for more than three years with outstanding reliability and performance. Another essential component of the plant is IKN's Pendulum Cooler, which is highly reliable and has low maintenance and operational costs. Its design allows recirculating bypass gas into the recuperation zone to boost cooler efficiency.

As part of the modernisation of the kiln line, the four existing MPS vertical roller mills will be replaced after forty years of successful operation. HeidelbergCement has ordered two new Gebr. Pfeiffer MPS 4250 B roller mills as replacements. Each mill is designed to achieve a capacity of 200t/hr of cement raw material ground to a fineness of 12% R90µm. The drive power per mill is 2250kW. Gebr. Pfeiffer will also supply the complete equipment for the external material circulation system as well as the cyclone collectors and mill fans. The supply of the mechanical equipment will be completed by engineering services covering the plant layout and the integration of the process-related ductwork within the existing, complex plant. Raw mill 1 is scheduled to go on stream at the end of 2016 and raw mill 2 is scheduled to start operations in 2017.

South Korea: Sun Cement Co Ltd has placed another order for a Loesche vertical roller grinding mill to grind granulated blast furnace slag.

At the Mokpo cement plant in South Korea, in order to ensure more cost-effective production, plans have been made to replace the current outdated ball mill with a new grinding plant. For this reason, Loesche has been commissioned to deliver a LM 35.2+2 CS mill. The vertical roller grinding mill will produce slag cement with a fineness of 4600 Blaine, at a capacity of 45t/hr. The capacity of the gearbox will be 1600kW.

The delivery of the key parts to Sun Cement Co Ltd is planned for the end of 2015.

India: Petron Engineering Construction has received work order from Shree Cement in Bewar, Rajasthan. The order includes civil construction work, reinforcement and steel work of a ball mill structure for a contract value of US$1.79m.

Indonesia: PT Bhumiadya Indonesia, part of the Sibleco Group and a manufacturer of industrial minerals with 228 sites worldwide, has ordered a coal mill from Loesche for its new limestone plant in Bandung, Indonesia. The LM 17.20 D vertical roller mill grind 10t/hr of coal to a fineness of 10% R 90μm. The scope of supply also includes filters, blowers, a Loesche hot gas generator and inertisation flaps. The delivery of the mill key parts is scheduled to take place at the end of 2015.

India: According to the Hindu Business Line, Sanghi Industries has installed a 1.2Mt/yr capacity grinding mill at its plant in Sanghipuram, Kutch. This increases the plants total capacity to 4.1Mt/yr. Sanghi Industries also plans to install a 15MW waste heat recovery system at the plant.

Saudi Arabia: The Chinese General Contractor Chengdu Design & Research Institute of Bldg Materials Industry Co Ltd in Chengdu has placed an order with Gebr. Pfeiffer SE for the supply of an MPS 3070 BC cement mill for Readymix in Saudi Arabia. The 1100kW drive power mill will grind 30t/hr of granulated blast-furnace slag and 46t/hr of Ordinary Portland Cement to a fineness of 4000cm²/g and 3600cm²/g, respectively. Delivery of the equipment is scheduled for 2015.

Zimbabwe: PPC Zimbabwe intends to invest US$75m in 2015 on its Harare cement mill to develop its export market. The mill will be commissioned in the first quarter of 2016 according to PPC Zimbabwe managing director Njombo Lekula. The cement producer is also spending US$6.4m on production upgrades at its Bulawayo and Colleen Bawn cement plants.

Lekula told local press that PPC Zimbabwe's export market had been cut by 40% due to the strengthening of the US dollar. However, he expected the export market to improve in the remainder of 2015.

Australia: The Kandos Bicentennial Industrial Museum has moved a ball mill from the former Cement Australia Kandos plant to its collection. The aim is to make the mill the centre of the museum's external collection, according to local press.

"We were very lucky to be offered the ball mill by Cement Australia," said Dr Buzz Sanderson, president of the Kandos Museum. "When Cement Australia decided to demolish the Kandos Cement Works, it asked us which parts we wanted to exhibit at the museum and the ball mill was one of them. There was a plan at one stage to place the ball mill down near the railway station at the entrance to town but there were just too many safety concerns."

The ball mill will be placed beside the Kandos Museum to give visitors to the museum a sense of how the machinery worked when it was in operation. The museum has had three sections cut away from the machine that will allow guests to look inside and see the inner workings of the machine.

Egypt: Misr Beni Suef Cement has reached an agreement to build a coal mill worth US$27.9m in 12 months.

"The project will be funded through self-financing and loans," said Misr Beni Suef. The company expects the project to be completed by the end of 2015. Egypt is currently struggling with blackouts and the government has cut natural gas supplies to plants, which has prompted cement companies to switch to coal.

Egypt's natural gas production has been declining for years. Production in January 2014 was down by 10% from January 2013, according to the most recent government figures. In September 2014, the Egyptian government began to allow coal imports despite environmental concerns from the high pollution coal emits.

China: Loesche GmbH has completed work on the largest slag mill in the world for Shanxi Taigang Stainless Steel Co (TISCO) in Taiyuan, China achieving a new record product rate of producing 255t/hr blast-furnace slag meal. The Loesche type LM 63.3+3 vertical mill for grinding granulated blastfurnace slag was originally ordered by the Taigang Group International Trade Co in September 2011. It started operation in March 2014.

At the TISCO steelworks the LM 63.3+3 has now been used for the pure grinding of granulated blast-furnace slag for the first time. The mill is driven by a motor with an output of 7400kW, the most powerful motor to have been installed so far by Loesche in a mill. The projected guarantee values of 255t/ hr granulated blast-furnace slag at a fineness of 4400 Blaine are reliably attained here. This is also ensured by the newly developed Loesche LDC classifier, used in the grinding plant and ideally customised to the Loesche mills.

The first Loesche LM 63.3+3 mill started production at Nallalingayapalli, India in 2009. It attains a peak value of 367t/hr ordinary portland cement at 3000 Blaine or 371t/hr portland pozzolana cement at 3400 Blaine.