Liming Heavy Industry Grinding System Solutions for Carbon Materials: High-efficiency Pulverizing to Forge Premium Quality of "Black Gold"

Carbon Materials: the "Black Engine" for High-End Manufacturing

Carbon materials refer to carbon and graphite-based non-metallic solid substances dominated by elemental carbon. Owing to their outstanding comprehensive properties, they are widely adopted in metallurgical electrolysis, new energy energy storage, electronic components, aerospace as well as high-end equipment manufacturing. They serve as critical raw materials for artificial graphite and carbon products applied in electrolytic aluminum production. Centered on the core upstream processes of the carbon industrial chain, Liming Heavy Industry provides professional and high-performance powder processing equipment together with systematic solutions, laying a solid quality foundation for the production of high-performance carbon products.

As a vital national raw material industry, the carbon sector mainly takes petroleum coke and pitch coke-solid waste generated from petrochemical and coal chemical processes-as raw materials, with coal tar pitch used as the binder. This approach realizes the resource recycling of industrial solid wastes and builds a complete industrial chain consisting of raw material calcination, powder preparation, kneading & forming, and high-temperature treatment. The processing technology of this whole chain directly governs product performance and the economic benefits of manufacturers.

Carbon Material Production Process

Petroleum coke and needle coke are adopted as main raw materials, with coal tar pitch serving as the binder. Raw materials are first calcined to modify their basic properties and remove volatile matter. Afterwards, the materials are crushed and ground into qualified powder before batching. The blended materials are kneaded to fully integrate raw materials with the binder into plastic feedstock, which is then pressed into green bodies. Subsequent calcination and solidification produce various carbon blocks widely applied in multiple industrial sectors.

Graphite Material Manufacturing

Graphite products are further processed on the basis of semi-finished carbon products. Repeated pressing is carried out to densify the internal structure and improve mechanical strength of materials, followed by impregnation to fill internal pores and optimize overall material performance. The core procedure is graphitization. Under an ultra-high temperature above 2000°C, carbon atoms rearrange structurally to raise carbon purity and graphitization degree. This process manufactures high-performance products including graphite electrodes and anodes. These items play an essential role in high-end manufacturing such as electric arc furnace steelmaking and electrolytic aluminum production, fueling technological upgrading and high-efficiency operation for relevant industries.

Throughout the entire carbon production process, the deep processing and grinding of raw materials such as petroleum coke constitute the core upstream working procedures of the industrial chain, which directly determine the quality and production efficiency of finished carbon products in subsequent working stages. Drawing on nearly four decades of R&D experience in grinding equipment, Liming Heavy Industry thoroughly integrates grinding process design with equipment innovation according to the material characteristics of calcined petroleum coke featuring high hardness and strong abrasiveness. The calcined petroleum coke powder produced by our series grinding machines boasts well-proportioned fineness distribution and superior purity, precisely catering to various demands of carbon manufacturers for diversified development and whole-industry-chain layout.

To satisfy the powder preparation requirements of the carbon industry, Liming Heavy Industry supplies high-efficiency grinding equipment including the MTW6X intelligent European-style mill with full thin oil lubrication, LM vertical roller mill, LUM ultra-fine vertical mill and MW ring-roller micro-powder mill. Equipped with intelligent control systems, these devices realize precise regulation over the fineness and purity of calcined coke powder. Meanwhile, they deliver prominent strengths of high throughput, low energy consumption, stable operation and eco-friendliness with consistent finished product quality. The equipment can meet the large-scale, high-standard and high-quality powder production requirements of carbon enterprises, delivering solid equipment and technical support for the sound development of the carbon industry.

MTW6X Intelligent European Trapezium Mill with Full Thin Oil Lubrication

Adopting integrated bevel gear transmission, full thin oil lubrication, curved air ducts and other proprietary technologies, MTW6X Intelligent European Trapezium Mill with Full Thin Oil Lubrication supports long-term continuous and stable operation equipped with multi-point online monitoring systems, delivering superior quality finished powder. Matched with an intelligent control system, the equipment features easy operation & maintenance and lower energy consumption while satisfying high production capacity and environmental protection standards, delivering reliable support for efficient powder production of carbon manufacturers.

LM Vertical Roller Mill

LM vertical roller mill integrates drying, grinding, powder classification and conveying into one single unit. It is capable of processing all materials with a Mohs hardness of no more than grade 7. Featuring compact layout and negative-pressure sealing structure to prevent dust leakage, the equipment is energy-saving and eco-friendly, greatly cutting down total investment as well as operation and maintenance costs. It is well suited for large-scale industrial projects and mass powder production.

LUM Ultrafine Vertical Mill

Designed specifically for ultra-fine powder manufacturing, LUM ultrafine vertical mill adopts material bed grinding and multi-stage variable-frequency powder classification technologies. It produces finished powder with high fineness and uniform particle size distribution, stably manufacturing high-purity ultra-fine carbon powder. Balancing production capacity and machining precision, the mill meets the stringent fineness requirements of powder materials in coatings, electronics and other industries.

MW ring-roller micro-powder mill

Developed by Liming Heavy Industry based on nearly 40 years of mill R&D and manufacturing experience with absorption of modern powder grinding technologies, MW ring-roller micro-powder mill is dedicated to the production of ultra-fine powder and micro-powder. Equipped with a new high-efficiency cage-type powder classifier under variable frequency control, the mill allows convenient particle size adjustment. The one-time finished fineness can reach D97 ≤ 5 μm.

Liming Heavy Industry delivers EPC general contracting services for powder grinding systems and strives to build a premium brand as an integrated supplier of comprehensive grinding system solutions. Adhering to the philosophy that "Customers' success equals our success", we have a professional design institute team. Through continuous technological research and innovation, we provide customized EPC general contracting services for powder grinding projects to satisfy clients’ demands for integrated, intelligent and eco-friendly plant construction, supporting the smooth implementation of high-quality carbon powder production projects for customers.

Case:

Against the backdrop of high-quality development across the carbon industry, efficient powder grinding acts as the core key to manufacturing premium "black gold" products. Centered on the core demands of the carbon sector, Liming Heavy Industry devotes itself to the R&D of core equipment and full-process quality services, and drives product upgrading via technological innovation. With stable and durable equipment, eco-friendly and high-efficiency solutions as well as a full-spectrum professional service system, we help carbon enterprises break through cost and environmental restrictions, achieving dual progress in cost reduction & efficiency improvement and low-carbon transformation.