Displaying items by tag: Grinding mill

Australia: The Australian federal government has granted Adbri US$32.5m for a new front-end engineering and design study at its Birkenhead cement plant. The study will assess the possible installation of a new vertical roller mill and post-production blending system at the plant. InDaily News has reported that the proposed upgrade will increase the plant’s production capacity and help to expand its range of reduced-CO₂ cements. The funding falls under the government’s US$260m Critical Inputs to Clean Energy programme, which aims to help decarbonise the Australian economy by 2050.

CEO Mark Irwin said “With the Commonwealth’s support we have the potential to further accelerate the decarbonisation of our operations and products.”

UK: First Graphene has announced a third trial at Breedon Group’s Hope Cement Works to test an optimised formulation of its PureGRAPH-CEM product under full-scale production conditions. The trial aims to further improve the performance of graphene nanoplatelets in cement production using practical experiences obtained from the previous two trials. The third trial is based on a PureGRAPH grade with a particle size distribution and morphology optimised for use in cement grinding mills, designed for direct addition to the mill without the need for additional equipment. The trial will last eight hours and involves close monitoring of cement fineness during the process. It will use just over 2t of the graphene product in up to 1000t of cement, according to the company. The trial is scheduled to start in the second quarter of 2024.

India: UltraTech Cement will integrate vertical mill technology from Gebr. Pfeiffer for three new clinker production lines. Gebr. Pfeiffer SE and its Indian subsidiary, Gebr. Pfeiffer India, will fulfil a subsequent order.

At the Happy 3 plant, cement raw material grinding will be conducted using an MVR 5000 R-4 mill, equipped with a 5300kW drive, capable of grinding about 705t/hr to a product fineness of 1.5% R 212µm. Additionally, three MPS 3550 BK mills, each with a 1300kW gearbox, will grind about 45t/hr of petcoke or 90t/hr of coal. These mills come with an integrated SLS 3750 BK classifier.

Gebr. Pfeiffer's MVR mills are distinct in their use of rollers according to the R=C principle. This design allows the same rollers to be used with parts for both raw meal and cement grinding. The MVR 5000 R-4 mill at Happy 3 features four actively redundant rollers, maintaining about 70% production capacity during maintenance. Gebr. Pfeiffer equips MVR mills with maintenance-oriented condition monitoring systems, enabling the implementation of digital maintenance strategies.

Handling of the order will be a collaborative effort between Gebr. Pfeiffer SE and Gebr. Pfeiffer India with all customer support and plant planning managed by Pfeiffer engineers in Noida. Core components like gearboxes, grinding bowls and roller suspensions will be shipped from Europe, while other parts like foundations and classifiers will be provided by the Indian subsidiary. Support for the plants will be managed by the customer support centre in Noida, accessible via remote data or on-site personnel.

India: Andhra Cements has commenced work to dispose of grinding mills from its Visakha grinding plant in Andhra Pradesh’s Visakhapatnam District, Reuters has reported. The plant previously had a capacity of 600,000t/yr.

Sagar Cements concluded a deal to acquire Andhra Cements in January 2023.

Mexico: Cementos Moctezuma has awarded a contract to France-based Fives FCB to supply an FCB Horomill 3800 grinding mill for its Morelos cement plant in Tepetzingo. The supplier says that the mill offers a lower power consumption than any competing product in the market. The latest mill will be the 15th Fives FCB mill at a Cementos Moctezuma cement plant in Mexico. Fives FCB says that its mills had accumulated 1.5m hours of operation across three different sites at the end of 2022.

India: Germany-based Gebr. Pfeiffer says that it has received orders for two MVR 3750 C-4 vertical roller mills from Dalmia Cement (Bharat). The producer plans to install one mill at its Ariyalur grinding plant in Tamil Nadu and the other at its Kadapa grinding plant in Andhra Pradesh. Gebr. Pfeiffer says that the mills will be employed in grinding clinker and pond ash. Each will produce 160t/hr of cement or fly ash cement. The supplier said that the mills' vertical design will help them to dry pond ash, as well as grinding and classifying it.

UK: A court has fined CRH subsidiary Tarmac US$516,000 for failing to ensure the provision of moveable guards fitted to an interlocking device connected to a rotary mill at its Dunbar cement plant between January 2019 and April 2021. The East Lothian Courier newspaper has reported that the failure resulted in a worker’s loss of fingers after he came into contact with the unit’s rotary valve on 30 April 2021. The producer has until 20 September 2023 to pay the fine.

Zimbabwe: Khayah Cement (formerly Lafarge Cement Zimbabwe) commissioned a new vertical roller mill at its Manresa cement plant on 6 July 2023. The Chronicle newspaper has reported that the project constituted Phase 2 of Khayah Cement's expansion to the plant.

Kyrgyzstan: Kant Cement has successfully transitioned Grinding Unit 8 of its Kant cement plant to closed cycle grinding operations. Business World News has reported that China-based CNBM Beijing Triumph carried out the work. The transition has increased the unit's production capacity by 30 - 40%.

Kant Cement's general director Pavel Dekhtyarev said "The mill previously produced 40t/hr of CEM II cement and 30t/hr of CEM I cement. Now it produces 58t/hr and 50t/hr, respectively. With this productivity, it was possible to reduce the specific energy consumption by 30% and reduce dust emissions. In addition, closed circuit grinding allows us to produce high grades of cement that could not be obtained with open circuit grinding systems."

Uzbekistan: United Cement Group (UCG) subsidiary Kuvasaycement is building a sixth grinding unit at its Quvasoy cement plant in Fergana. Business World Magazine has reported that China-based Sinoma International Engineering will supply the equipment for the expansion, consisting of a roller press and ball mill, equipped with a separator and pre-grinder.

Kuvasaycement general director Denis Nikitin said "In recent years, we have systematically replaced outdated equipment, renewed our car fleet, installed new filters to reduce cement dust emissions and modernised cement mills in accordance with the highest requirements to which UCG adheres. The cement market in Uzbekistan is rather saturated and, in order to increase production competitiveness, we decided to commission one more cement mill to 'cover' the capacity of the existing five mills. It is also connected with additional demand for products for the construction of bridges, roads and airports. This is state-of-the-art equipment with new grinding capabilities that we have been missing."