Double-impeller impact type sand making machine

Abstract

The invention relates to the technical field of sand making machines, and discloses a double-impeller impact type sand making machine. The double-impeller impact type sand making machine comprises a machine shell; a feeding hopper is fixedly mounted at the top of the machine shell; supporting plates are fixedly mounted on the two sides of the machine shell; according to the double-impeller impacttype sand making machine, a layer of filtering structure is arranged above a discharging port, and the sizes of the meshes of the filtering structure can be produced into corresponding sizes accordingto different demands; on one hand, the filtering device can stop the part of gravel and sand which fall freely and are not crushed completely; on the other hand, the filtering device can perform particle size screening on the crushed gravel and sand; moreover, a certain angle is formed between the filtering device and the horizontal direction but the angle cannot exceed 30 degrees; and the limitation of the mounting angle ensures that the filtering effect is achieved, and meanwhile, the filtered gravel and sand with unqualified particle sizes can slide to an unqualified discharging port alongthe edge of the filtering device, so that the discharge quality of a qualified discharging port is strictly ensured.

Description

technical field [0001] The invention relates to the technical field of sand making machines, in particular to a double impeller impact sand making machine. Background technique [0002] The sand making machine feeds the sand and gravel raw materials from the hopper into the crushing chamber, and part of the incoming sand and gravel raw materials enters the impeller for acceleration and then throws them out, while the other part falls freely from the side, and the sand and gravel raw materials are thrown out at high speed during the process. It collides with the free-falling sand and gravel raw materials, and then impacts with the wall of the crushing chamber, and finally achieves the purpose of crushing the sand and gravel raw materials to produce finished products. However, the existing sand and gravel machines always have some defects: [0003] 1. Since the existing sand and gravel raw materials are of different particle sizes, the speed required for sand and gravel raw ma...

AI Technical Summary

Problems solved by technology

[0003] 1. Since the existing sand and gravel raw materials are of different particle sizes, the speed required for sand and gravel raw materials of different particle sizes to achieve the same crushing effect is not the same, but the existing sand making machines all use An impeller mixes sand and gravel with different particle sizes together and spins and accelerates them to collide with the free-falling sand and gravel, so that although the sand and gravel with larger particle sizes can be crushed, the sand with smaller particle sizes Because it also has a very high throwing line speed, it is crushed excessively when it collides with the free-falling sand and gravel, which causes excessive dust in the process, which not only re

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