Nowadays, countries vigorously advocate and support the emerging material industry. Graphite products have been regarded as important new industrial materials at home and abroad. Graphite has many excellent properties such as electrical conductivity, thermal conductivity, high temperature resistance, lubricity and chemical stability due to its special mixed crystal structure of atomic crystals and molecular crystals. Graphite products play an extremely important role in metallurgy, chemical industry, machinery, medical equipment, nuclear energy, automotive solar energy, aerospace, new energy batteries, supporting materials for anode materials, etc., and have broad prospects for future development.

Industrial graphite products

Lithium battery negative electrode material

New materials for national defense

Project overview

The customer's site mainly produces carbon graphite products, new energy lithium batteries and carbon materials for high-end industrial fields, which are mainly used in industrial silicon, calcium carbide, lithium battery anode materials, etc. After many inspections, they finally selected Liming® MTW European Series grinding mill. The project fully combines the user's site conditions, with reasonable process design, economical investment, intelligent and environmentally friendly.

Processing materials: calcined petroleum coke

Finished product fineness: 200 mesh

Finished product use: graphite electrode, lithium battery negative electrode material

Equipment used: Liming® MTW series European type grinding mill

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Equipment selection and advantages

MTW European type grinding mill

mtw
Model Main engine
power (kW)		 Maximum
feed size (mm)		 Processing
capacity (t/h)
MTW115G 55-75 30 3-12
MTW145G 110-132 35 6-23
MTW158G 132-160 38 8-30
MTW178G 185-200 40 10-38
MTW198G 200-250 40 15-46
MTW218G 280-315 50 18-55
Fineness of finished product (mm)：1.6-0.045,fineness can reach to 0.038

Technical advantages

  • 01Leading technology

    National patented product, upgraded and transformed from 4 generation grinding mills, mature and stable.

  • 02Not easy to be blocked, high powder selection efficiency

    Designed with curved air duct, and the internal outlet direction is conducive to the dispersion of raw materials, it is not easy to be blocked. The new hanging cage type powder separator is with frequency conversion control. The fineness of the finished product is adjustable and controllable, and the powder selection efficiency is greatly improved.

  • 03Advanced transmission and stable operation

    The bevel gear is integrally driven, with strong strength, high efficiency, large output and low energy consumption. Sunken design, smooth operation, small vibration and low noise.

  • 04Easy maintenance and low operating costs

    The main shaft transmission system and blower transmission system are lubricated with thin oil, which results in long oil change intervals, less frequent maintenance, and low operating costs.

  • 05More economical investment, more environmentally friendly production

    It occupies a small area, has a simple structure and layout, is highly complete, has low infrastructure costs, a short construction period and quick capital recovery. The finished product has low pollution and high whiteness, and the entire system operates under negative pressure with no dust spillage, complying with the latest environmental protection requirements.

Liming® Customer Site Show

Production process of graphite products

Input the petroleum coke to a rotary kiln or resistance furnace and heat to 1200-1350°C in an air-isolated condition to remove its moisture and volatile matter and improve its density and conductivity.

The grinding process is also crucial. The fineness distribution of the products after grinding and the purity of the finished powder will affect the quality of graphite products. In the grinding process, the calcined petroleum coke is generally crushed and ground through a crusher and a mill to obtain petroleum coke fine powder with size of 200 mesh.

Mix petroleum coke powder and binder (such as asphalt, coal tar, etc.) evenly in a certain proportion to form a green body with a certain shape and mechanical strength, and then put it into a roasting furnace and heat it to 1000°C under air-isolated conditions. -1200℃ to carbonize the binder to obtain roasted products.

The roasted product is put into the autoclave, and the liquid impregnating agent is pressed into the pores of the roasted product. The impregnation needs to be repeated 2 to 3 times. Finally, it enters the graphitization furnace and is converted into graphite through high-temperature heat treatment at 2800-3000°C. Crystalline structure, thereby obtaining graphite products with high purity and high conductivity.

EPC general contracting service

Liming Heavy Industry provides EPC general contracting services for petroleum coke grinding preparation systems, with high standards, high efficiency and short construction period. It is committed to building a high-quality grinding system comprehensive service provider brand, insisting that "customers' success is our success", with professional The design institute team continues to explore and strive to provide customers with customized grinding project EPC general contracting services, providing full guidance from early project establishment to final production, ensuring that customers' integrated needs are met.

Raw material testing

Project design

Equipment supply

Project construction

Accessories supply

After-sales service

Staff training

Installation and debugging

About Liming®

Liming Heavy Industry—a grinding industry standard drafting unit, a pioneer in grinding equipment technology, system solutions and services in the global new powder materials, mineral grinding processing and resource recycling industries.

Liming Heavy Industry was founded in 1987, covering a total area of more than 1,600 acres. It has four major production and operation bases and has served more than 30,000 customers in more than 180 countries and regions. It has obtained more than 280 patents and was the first in the industry to pass ISO9001 international quality system certification, EU CE certification, and Customs Union CU-TR certification. Focusing on customer needs in different fields, the product processing range covers 1-3mm coarse powder, 20-400 mesh fine powder, 400-1250 mesh ultra-fine powder and 1250-3250 mesh micro powder, covering the entire process chain of new material mineral grinding processing .

Request a Quotation

Thank you for your interest in Our Industrial Grinding Mill. If you want to get help immediately, please chat online now. At the same time, you can also fill in your requirements, we will reply you in 24hours.

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Request a Quotation

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