Cement grinding station

Cement grinding station is the terminal link of cement manufacturing process, responsible for processing mixed materials such as clinker, gypsum, slag, fly ash, etc. through multi-stage crushing and grinding to form cement products that meet the standards. After pre-crushing, clinker is mixed with auxiliary materials in proportion, and finely ground by ball mill or roller press combined with grinding system, and finally produces finished cement with a specific surface area of 3000-4000 cm²/g. This process optimizes cement particle grading through dynamic classification and particle shaping technology, and enhances cement hydration activity and early strength.

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Jiangsu Haijian Co., Ltd was established in 1970 and was restructured into a provincial privately-owned joint-stock company in 2003. The company currently employs over 300 people, with engineering and technical personnel accounting for 25% of the total workforce. It covers an area of 100,000㎡ and has a building area of 55,000㎡. We currently possess vertical lathes ranging from Φ2.5-10m in diameter; gear hobbing machines with Φ2-8m capacity; floor-type lathes with Φ5×16m and Φ7×20m capacities; overhead cranes ranging from 10-150t; plate rolling machines from 30-120; gas annealing furnaces measuring 6.5×6.5×18m; and automatic drying and spraying booths, with a total of 500 units/sets of various equipment.
Jiangsu Haijian Co., Ltd is a professional China Cement grinding station Manufacturers and Cement grinding station Company. We provide professional cement production equipment, industrial solid waste incineration equipment, and professional equipment for mining and metallurgical applications.We are a major manufacturing enterprise, a key backbone enterprise, and a primary export base for cement, power, environmental protection, and metallurgical and mining equipment in China. The company has the legal rights to independently manage the import and export of its products and is legally authorized to undertake general contracting for foreign projects.

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Industry knowledge

As the final step in the cement manufacturing process, cement grinding plants undertake the crucial mission of transforming clinker and admixtures into finished cement. Jiangsu Haijian Co., Ltd. is a professional cement grinding plant manufacturer and company. We provide specialized cement production equipment, industrial solid waste incineration equipment, and specialized equipment for mining and metallurgy applications. Through refined grinding processes and scientifically controlled mix ratios, cement grinding plants produce cement products that meet various performance standards, directly impacting the quality and performance of cement.

The cement grinding process begins with raw material pretreatment. Clinker is pre-crushed to a particle size of ≤25mm in a hammer crusher before being precisely mixed with gypsum (3-5%), slag (up to 30%), fly ash, and other mixed materials in precise proportions before entering the batching system. Modern grinding plants primarily utilize two main grinding processes:

Ball mill system: A traditional closed-circuit grinding system equipped with a high-efficiency classifier (such as O-Sepa), with a circulating load controlled at 150-250%.
Roller press combined grinding system: Combining a roller press (pressure ≥ 200 MPa) with a ball mill, it offers excellent energy savings.

During the grinding process, the material undergoes multi-stage crushing and grinding, ultimately achieving a surface area of 3000-4000 cm²/g. The dynamic classifier precisely controls the fineness of the finished product by adjusting the rotor speed (adjustable range: 800-1500 rpm), maintaining a 45μm sieve residue of 12-16%. Particle shaping technology improves cement particle morphology by optimizing the grinding media gradation and grinding trajectory, increasing the circularity coefficient by 15-20%.

Key points for ensuring stable equipment operation:
Grinding mill liner: Measure wear monthly; replace if remaining thickness is less than 50%
Grinding media: Regularly replenish balls to maintain stable gradation
Powder separator rotor: Quarterly inspect blade wear
Lubrication system: Online oil quality monitoring, contamination level NAS ≤ 8

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