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custom 34crnimo6 professional cement industrial grinding mill roller with shaft

customized machinery spare parts manufacturers & supplier & factory - cheap price machinery spare parts for sale - luoyang yujie

customized machinery spare parts manufacturers & supplier & factory - cheap price machinery spare parts for sale - luoyang yujie

Contact Information Luoyang Yujie Industry & Trade Co.,Ltd Tel: 86- Fax: 86- Phone: 86- Contact person: Sara Cui Email: [email protected] ADD: Jianxi Industrial Park,Luoyang City,China

cement roller press - roller press in cement plant | roller press cement mill

cement roller press - roller press in cement plant | roller press cement mill

The cement roller press is a kind of grinding equipment applied for brittle materials, such as cement clinker, granular blast furnace slag, cement raw materials (limestone, sandstone, shale, etc.), gypsum, coal, quartz sand, iron ore, etc. It is designed according to the principle of bed grinding, the high-pressure load directly acts on the material layer through double rollers, which causes internal stress in particles and leads to cracks to achieve the purpose of grinding.

The cement roller press has a high energy utilization rate and remarkable energy-saving effect in the material grinding process. In cement plant, cement roller press is a kind of important cement equipment used for clinker grinding. It is usually combined with a cement ball mill to form a high-efficiency cement grinding system because the practice shows that the grinding process with small grinding ratio and step-by-step completion is more energy-saving than that with large one-time completion.

Cement ball mill is a main cement grinding mill with a low energy utilization rate (only 3%-5%). Compared with the grinding energy consumption, most of its energy is consumed by collision heating and noise. Therefore, we usually adopt the cement roller press to replace the fine crushing and coarse grinding role of the ball mill. This increases the output of the ball mill system by 30-50%, and 20-35% of the extruded materials are smaller than 0.08mm, 65-85% are smaller than 2mm. Besides, a large number of cracks will be produced on all extruded materials, which will greatly reduce the energy consumption of materials in the next grinding process.

Pre-grinding system: after the material is pulverized by the roller press, all or part of them with a good extrusion effect will enter the subsequent ball mill for further grinding. This system has the advantages of simple processes, less equipment, wide particle size distribution, and stable cement performance. But because the ground material is not classified, a large number of fine powders are back to the roller press, the power saving range is limited.

Combined grinding system: materials ground by cement roller press are divided into two parts by air classifier: coarse part and fine part. The fine part will enter the ball mill to be further ground into the finished product, the coarse part will return to the roller press to be ground again. Because the cement finished products are all ground by the ball mill, the finished products have wide particle size distribution and the cement performance is stable.

Semi-finishing grinding system: after ground by cement roller press, materials are divided into three parts through an air classifier: coarse, medium and fine, in which the coarse material is returned to roller press for re-grinding, the medium material is put into ball mill for further grinding, and the fine material is directly discharged as the finished cement product. Because the roller press and the ball mill are two completely independent circulation systems, they are easier to operate and control and are more energy saving.

Finish grinding system: this system only includes a cement roller press to complete the grinding of cement clinker. Materials ground by cement roller press are divided into two parts by air classifier: coarse part and fine part. The coarse part will return to the roller press to be ground again and the fine part will be discharged as the cement product.

The cement roller press is composed of two rollers that rotate synchronously in the opposite direction and a set of a hydraulic system. Its main structure includes a press roller system, transmission device, mainframe, hydraulic system, feeding device, and so on.

The two rollers of cement roller press, one is fixed and the other is movable, which are driven by a motor and a reducer to rotate at a relatively low speed. The movable roller bearing seat is connected with the hydraulic system. It can be moved along a horizontal direction to control the gap between the two rollers, while the fixed roller is installed in the inner chamber of the mainframe. When materials enter between the two rollers from above, pressure (50-300Mpa) is transferred to materials by the hydraulic system through oil cylinder, bearing seat, and rollers so that material particle size can be reduced by means of extrusion. After grinding, the fine particles less than 90m account for about 20-30%. At the same time, there are many cracks in the coarse particles. In the process of further grinding, their energy consumption can be greatly reduced.

AGICO is a professional cement plant equipment supplier in China. The cement roller press is one of our hot-sales products in the cement grinding unit. Compared with other cement mills, the roller press produced by AGICO has the following advantages:

Cement ball mill and cement roller press are both the commonly used equipment for clinker grinding. But in the actual cement production process, the roller press has more advantages in different aspects, mainly reflected in the following points:

AGICO Group is an integrative enterprise group. It is a Chinese company that specialized in manufacturing and exporting cement plants and cement equipment, providing the turnkey project from project design, equipment installation and equipment commissioning to equipment maintenance.

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