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The cement clinker grinding plant or cement grinding station acts as an individual production line in the last period of the cement production process. In the finished product period, the cement clinker is ground by adding moderate mixing materials and then forms the finished cement.

Process of cement grinding station:
1.Raw material storage yard and conveying
The clinker,gypsum, mixed material are transported to the storage place for storage, there set rectangle storage area which store the clinker, gypsum and mixed material distributed as per the storage capacity.the mixed material and gypsum of inlet size ≤200mm is transported to the special discharge pit by the dozer and conveyed by belt conveyor to cement dosing silo after being crushed to ≤25mm by the jaw crusher.
2. Cement proportioning silo and conveying
There set cement dosing silo (steel bin) to store the clinker, gypsum, mixed material. such three material are transported to the cement mill system after being weighed by speed adjusted belt weigher under the silo.
3.Cement grinding and conveying(closed circuit ball mill system)
The three material after being mixed shall be transported to ball mill for grinding, the mill adopt closed circuit, the cement from the mill shall be transported to the O-Sepa separator, the coarse powder from the separator shall be transported to the mill inlet through air chute, the finished product from the separator is transported to the cement silo by bucket elevator. The mill outlet strength the ventilation to control the air flow inside the mill to reduce the over-grinding, the finess which collected by the bag filter is directly transported to the cement silo, the dust content of the waste gas after being purified is ≤50mg and directly emitted to the atmosphere.

4.Cement storage and conveying
Cement silo temporally consider the storage silo.The quantity of cement silo can be adjusted as per the actual condition.the cement in the cement silo can be directly transported to the cement packing system.
5. Cement packing and truck loading
Adopt rotary packer for cement packing;packed cement can be directly sent to bagged cement truck by two-unit automatic bagged cement loaders.
6.Air compressor station
The whole plant set one air compressor station with air compressor with the gas displacement 19m3/min,the discharge pressure is 0.8Mpa.the air compressor station shall meet the requirements of gas-control valve,measuring meter and pulse type bag filter.

Main characteristics of Cement Clinker Grinding Plant:
1. The batching system have been adopt automatic quantitative feeding and measuring device, which have increase the material batching accuracy and also stablilizing the production’s quality.
2. Adopting tube mill or vertical roller mill to producing qualify cement according to the raw material’s condition of clients.
3. Producing system have adopt closed circuit to reduce the energy consumption of cement grinding. The single line scale can be from 50tpd to 2000tpd, which have been covered the cement factory’s different manufacture demand.
4. Adoption of High efficiency air classifier and pulse type bag filter have created the circumstance for energy saving and energy consumption reduction.
5. The mill and air classifier have adopt 3D computer design, which have reasonable structure and reliable operation.
6. The grinding system have adopt best ventilation air volume design, which will reduce the installed capacity.
7. Plant have high automation level, the operating process will adopt DCS central control system for adjustment, control and alarm in master control room, then the whole plant have less operator and also increase the working efficiency.
8.Compared to other production process, our cement grinding unit canincrease capacity by 30%, and the energy consumption can be reduced by 15%,apply for different requirement of fineness,greatly improve the grinding efficiency.

Cement Clinker Grinding Station technical parameter:
| No | Item | Unit | Closed circuit production | ||||
| 1 | Factory capacity | ×10³t/a | 100 | 160 | 250 | 350 | 500 |
| 2 | Main material usage | ||||||
| (1) | Clinker | t/a | 80000 | 128000 | 200000 | 280000 | 400000 |
| (2) | Gypsum | t/a | 5000 | 8000 | 12500 | 17500 | 25000 |
| (3) | Pozzolana | t/a | 15000 | 24000 | 37500 | 52500 | 75000 |
| 3 | Energy consumption | ||||||
| (1) | Fresh water | t/a | 4000 | 7000 | 9000 | 12000 | 17000 |
| (2) | Electrical | kWh/a | 3600000 | 5700000 | 8500000 | 1200000 | |
| 4 | Layout transportation | ||||||
| (1) | Land area | square meter | 15000 | 18000 | 20000 | 22000 | 24000 |
| 5 | Project invest | ||||||
| (1) | Production line total invest | Ten | 600 | 1000 | 1500 | 2000 | 2850 |
| thousand | |||||||
| 6 | Workers | 30 | 35 | 35 | 35 | 35 | |
| 7 | Main equipment | ||||||
| (1) | Ball mill | Φ2.2×6.5m | Φ2.4×11m | Φ3×11m | Φ3.2×13m | Φ3.5×13m | |
| 14t/h | 24t/h | 35t/h | 50t/h | 70t/h | |||
| 380kW | 630kW | 1250kW | 1600kW | 2000kW | |||
| (2) | Belt conveyor | B500 | B650 | B650 | B800 | B1000 | |
| (3) | Mill outlet bucket elevator | TH315 | TH400 | NE100 | NE150 | NE200 | |
| (4) | Air classifier | NHX400 | NHX600 | NHX700 | NHX800 | NHX1000 | |
| (Osepa N250) | (Osepa N500) | (Osepa N750) | (Osepa N1000) | (Osepa N1500) | |||






1. Excellent installation team or installation service for you;
2. Provide you with operating and training services;
3. Help with the equipment commissioning and solve problems in trial operation;
4. Check before acceptance of single equipment or whole production line;
5. Service items including follow-up visit, customer satisfaction surveys and so on;
6. Timely provide you with necessary accessories after acceptance;
7. Provide you with warranty services of repair, replacement and refund if conditions are fulfilled;
8. Help you solve other problems.
HENAN ZHENGZHOU MINING MACHINERY CO.,LTD is built in 1956,is leading mining equipments manufacturing in the world, who has provided innovative technology and products for mine and energy of over 100 countries and district. It is appointed as the fixed equipment-providing factory by Chinese Ministry of Machine Building and HENAN Mechanical Electronic Bureau.



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