Environment-friendly sand making machine

Abstract

The invention belongs to the technical field of sand making machines, and discloses an environment-friendly sand making machine which comprises a feeding cabin and a rotary sand hammering mechanism arranged in the feeding cabin. The feeding cabin is composed of an upper feeding cabin and a lower feeding cabin elastically connected with the upper feeding cabin. The lower feeding cabin is an arc-shaped screening plate which is connected with the upper feeding cabin in a sealed mode through an elastic connecting piece. A sand discharging bin is arranged below the arc-shaped screening plate and isconnected with the lower side of the arc-shaped screening plate in a sealed mode through an elastic connecting piece. A vibrating device is arranged on the sand discharging cabin which is further provided with a dust-raising preventing mechanism. The environment-friendly sand making machine has the characteristics of low abrasion loss, high productivity and dust-raising prevention.

Description

technical field [0001] The invention belongs to the technical field of sand making machines, and in particular relates to an environment-friendly sand making machine. Background technique [0002] At present, it is widely used in sand and gravel building materials, ore dressing end crushing, etc., and a large number of PC hammer crushers are used. The existing hammer crushers have the following three major shortcomings. [0003] 1. High abrasion of the hammer head: No matter how the technology advances, the wear of the hammer head is inevitable no matter what material the hammer head is used for. The research on the wear state of the hammer head and the crushing working conditions shows that the reasons for the wear of the hammer head during operation are as follows: a. The contact wear when the hammer head rotates at high speed and the material hits and collides is the best way to obtain the crushing effect Form, the hardness of the hammer head is much higher than that of ...

AI Technical Summary

Problems solved by technology

This is also the main reason for the accelerated wear of the hammer head in actual production.

[0004] 2. Low crushing production efficiency: traditional hammer crushing will shorten the crushing force (output) as the hammer head wears and shortens. A pair of conventional high manganese steel hammer heads processing mountain sand has a service life of about 10 days. In the cycle from new to wear, The production efficiency is from high to low. With the shortening of the wear of the hammer head, more and more deposits on the screen surface, the wear speed is accelerated, the screen penetration ability is getting worse and worse, the damping caused by the hammer head friction material is getting bigger and bigger, and the speed is slow , the power consumption increases, the output decreases, and finally the hammer head is replaced due to the stuffy car or the low output. The fundamental method of stand-alone production rate

[0005] 3. Large dust: All the hammers that break through the uniform distribution of the rotor are like fan blades when rotating at high speed. The material and wind are sucked in from the feed port, and after being accelerated by the rotor, they are discharged together with the powder through the sieve hole, resulting in A lot of dust, polluting the environment

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