As the core fuel in electric power, metallurgy, chemical engineering, building materials and other industries, the preparation quality and efficiency of coal powder are directly related to the production efficiency, energy consumption control and operational safety of enterprises. For enterprises planning to build a coal powder preparation production line, every link from process flow design, equipment selection and configuration, manufacturer screening and procurement to price cost control is crucial and interlocking. A mistake in any link may lead to low production line efficiency, high cost and frequent failures. To help enterprises fully grasp the core points of coal powder preparation, this article integrates the four core contents of coal powder preparation: process, equipment, manufacturers and prices, creates a one-stop comprehensive guide, and provides a comprehensive and practical reference for enterprise production and equipment procurement.


1. Core Process of Coal Powder Preparation: Standardized Technology, Controlling Every Key Link
The core process of coal powder preparation is raw material pretreatment → grinding → classification → collection → storage → transportation. Each link must follow standardized technology and be controlled at all levels to produce qualified coal powder:
Raw material pretreatment: Raw coal is screened to remove impurities such as gangue and iron blocks, and then crushed to 0-30mm by a crusher to meet the feeding requirements of grinding equipment, and the water content of raw materials is controlled ≤10% at the same time;
Core grinding: The pretreated raw coal is sent to the grinding equipment, and grinding and drying are carried out with the hot air system to grind the materials into powder, and the water content of coal powder is controlled at 1-2% at the same time;
Precise classification: The ground coal powder is classified by particle size through a powder separator, qualified fine powder enters the collection system, and coarse powder is refluxed for re-grinding to ensure uniform particle size of coal powder (80-200 mesh can be adjusted);
Efficient collection: A pulse bag filter is used to separate and collect qualified coal powder from the air flow, with a dust removal efficiency of ≥99.9%, which not only ensures coal powder recovery, but also meets environmental protection requirements;
Safe storage: The collected coal powder is sent to a sealed coal powder silo for storage. The coal powder silo is equipped with temperature and pressure monitoring and explosion-proof and arch breaking devices to prevent spontaneous combustion and arching of coal powder;
Clean conveying: The coal powder is transported from the coal powder silo to the combustion equipment through a pneumatic conveying system, with no dust and high conveying efficiency, realizing continuous production.
The whole process needs to adopt negative pressure operation, equipped with complete dust removal and explosion-proof equipment to ensure production safety, and adjust the process parameters slightly according to industry needs to adapt to different coal powder use scenarios.
2. Core Equipment for Coal Powder Preparation: Scientific Selection, Matching Cost-effective Equipment Combinations
Coal powder preparation equipment covers six categories: crushing, grinding, classification, collection, conveying and auxiliary. Grinding equipment is the core, and all equipment must have matching production capacity and adapted performance to ensure the efficient operation of the production line:


Core equipment selection: Priority is given to the special coal powder vertical mill for grinding equipment (integrating grinding, drying and classification, high efficiency and energy saving), and small and medium-sized production lines can select Raymond mill; crushing equipment selects jaw crusher (high hardness) or hammer crusher (medium and low hardness) according to the hardness of raw coal; classification equipment selects cage type powder separator (high precision); collection equipment selects pulse bag filter (high efficiency and environmental protection);
Equipment combination principle: Small production lines (1-5t/h) select "hammer crusher + Raymond mill + simple supporting equipment", medium production lines (5-20t/h) select "jaw crusher + coal powder vertical mill + conventional supporting equipment", large production lines (20-50t/h) select "jaw crusher + large coal powder vertical mill + fully automatic supporting equipment";
Core selection skills: Select equipment according to raw material characteristics, coal powder production capacity/fineness requirements and investment budget, priority is given to energy-saving, wear-resistant and environmental-friendly equipment to avoid model mismatch and excessive/high configuration.
3. Manufacturers of Coal Powder Preparation Equipment: Strictly Select Powerful Manufacturers to Ensure Equipment Quality and Service
Selecting regular and high-quality manufacturers of coal powder preparation equipment is the key to the long-term stable operation of the production line. The manufacturer screening needs to grasp 6 core standards:
Technical strength: Have an independent R&D team and core patents, can continuously optimize equipment performance;
Production process: Standardized production workshops, advanced processing equipment and strict quality control to ensure equipment quality;
Product category: Have the production capacity of full-category equipment, support one-stop procurement and overall scheme customization;
Case experience: Have rich industry application cases, covering many fields such as electric power and metallurgy;
Customization capability: Can tailor-make production line solutions according to customer needs;
After-sales service: Have a perfect system of installation and commissioning, technical training, fault repair and parts supply, with 24-hour after-sales response.
Practical skills for manufacturer selection: Conduct on-site inspections of production workshops, verify cases in the same industry, compare schemes and quotations of multiple manufacturers, and give priority to powerful manufacturers in industrially developed areas (Shanghai, Henan, Jiangsu).


If you require grinding, crushing, or sand-making equipment, please feel free to inquire online or by phone (+86-21-58386186). Shanghai Shibang will customize production line configurations tailored to your specific needs based on output volume, processed materials, and desired particle size distribution.