Focus on Fine Grinding of Activated Carbon | Liming Heavy Industry’s High efficiency Grinding Equipment Drives the Green Upgrade of the Carbon Industry

Leveraging its customized solution capabilities and advantages of full range powder grinding equipment, Liming Heavy Industry’s complete activated carbon powder grinding production lines have been deployed in multiple major activated carbon industrial zones across China. Widely recognized by the market for intelligence, high efficiency, environmental friendliness and energy saving performance.

Activated carbon is a porous adsorbent material prepared from carbon containing raw materials through high temperature carbonization and activation. Thanks to its high specific surface area, high porosity and excellent adsorption performance, it serves as a core functional material for modern industry and environmental governance. According to the main raw materials adopted for manufacturing, activated carbon is mainly categorized into coal based activated carbon, wood based activated carbon, pitch based activated carbon, synthetic resin based activated carbon and others.

Driven jointly by stricter environmental protection policies and high quality industrial development, activated carbon is widely applied in water treatment, agricultural environmental protection, food & pharmaceuticals, new energy energy storage and other fields. The global market keeps expanding. As the world’s largest producer and consumer of activated carbon, China faces continuously rising industry requirements for activated carbon in terms of quality stability, production efficiency and green compliance. The grinding process has become a key core procedure in activated carbon production.

Coal based activated carbon production consists of four major procedures: raw material pretreatment, carbonization, activation and post treatment. After pretreatment including crushing, grinding, drying and screening, raw coal undergoes high temperature carbonization under oxygen deficient conditions to remove volatile components. The carbon material is then subjected to high temperature gas phase activation for pore formation, followed by washing and refining to obtain finished coal based activated carbon.

The preparation processes for wood based activated carbon vary significantly. Raw materials first go through impurity and sand removal followed by carbonization. The carbonized semi finished products enter the grinding process to adjust particle fineness, and then undergo staged activation with steam and activating agents. Secondary activation is added for some products to optimize pore structures. Multiple refining procedures are carried out afterwards, including crushing, grinding, pickling, drying and multi stage screening. The final wood based activated carbon products are obtained after classified packaging.

The grinding process determines the particle size indicators of activated carbon powder, and directly affects the pore utilization rate and adsorption efficiency of finished products. It is a critical procedure for product quality improvement and production cost reduction. Targeting the diversified grinding working conditions of activated carbon, Liming Heavy Industry has launched the LM Vertical Roller Mill and MTW6X Intelligent European Trapezium Mill with full thin oil lubrication. They precisely meet various production requirements for activated carbon and deliver highly adaptable grinding solutions for activated carbon production lines of different scales.

Liming Heavy Industry LM Vertical Roller Mill integrates crushing, drying, grinding, powder selection and conveying into one unit. It delivers adjustable and controllable fineness. Featuring specially designed grinding rollers and grinding table structure, the mill adopts hydraulic automatic pressing devices for grinding rollers, which brings larger grinding area, high grinding efficiency and stable product quality. Operating under negative pressure with fully sealed structure, it prevents dust leakage and satisfies the requirements for large scale activated carbon grinding with high output, high efficiency, environmental friendliness and energy saving.

The MTW6X Intelligent European Trapezium Mill with full thin oil lubrication adopts multiple technologies including integrated bevel gear transmission, full thin oil lubrication and curved air duct, suitable for fine grinding of various carbon based materials. Equipped with a new high performance fan, the system achieves a 15% improvement in aerodynamic energy efficiency. Multi point online monitoring ensures superior finished powder quality. Combined with an intelligent control system, it features easy operation & maintenance and lower energy consumption, providing activated carbon manufacturers with convenient to maintain and long term reliable grinding support.

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Going forward, Liming Heavy Industry will continue to delve deep into carbon material grinding technologies. With integrated complete set solutions, the company helps the industry improve quality and efficiency while cutting energy consumption, and promotes the green and high quality development of the activated carbon industry.