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How to improve the crushing efficiency?

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The crushing section is a process of making feed particles smaller by impacting, shearing and grinding, it is one of the most important basic processes in the feed plant.

The energy consumption of crushing section accounts for 70% of the total consumption of feed processing. Therefore, improving the crushing efficiency of hammer mill can reduce the processing cost, and choosing the appropriate technology and equipment is the key to improve crushing quality and efficiency.

1. Crushing process

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1.1 Single cycle crushing process. The process can use hammer mill with larger mesh, plane rotary screen or vibration grading screen. After crushed, materials on the meshes by screener will be conveyed into hammer mill to be crushed again. The method of enlarging the meshes can increase the material flow and reduce the energy consumption. The power saving is 26% ~ 40% than that of common crushing process, and the output is increased by 34% ~ 50%.

1.2 Secondary crushing process. The process uses two hammer mills or combination of roller mill and hammer mill. Materials are usually coarsely crushed by the first hammer mill, then the thick materials will be crushed by the second hammer mill or roller mill. This process can eliminate the effect of material reflux on the efficiency of hammer mill in a single cycle process. Roller mill can play an important role in combination with hammer mill. It not only saves electricity consumption, but also reduces noise and is easy to adjust product fineness.

2. The convey of the materials after crushing uses mechanical convey (plus suction air).

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After the secondary crushing process, the output of hammer mill is increased, the lifting equipment and the horizontal conveying equipment after crushing section must have the corresponding transport capacity.


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3. Use automatic feeder. In order to achieve the best effect, we must ensure feeding uniform under the maximum workload, to make the hammer mill work efficiently and steadily. Using automatic feeder can regulate feeding speed according to...

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