Good and bad screening device after fertilizer production

Abstract

The invention relates to the technical field of fertilizer production, and discloses a good and bad screening device after fertilizer production. The device comprises supporting legs, wherein the upper ends of the supporting legs are fixedly connected to a fixed frame; the front side of the fixed frame is fixedly connected to a filter screen; the right end of the fixed frame is fixedly connected to a feed hopper; the left end of the fixed frame is rotationally connected to a discharging hopper through a bearing; the outer walls of the supporting legs are fixedly connected to an ash storage box; and a transmission mechanism is arranged at the bottom of the filter screen. During use, fertilizer is input from the feed hopper, a self-cleaning mechanism can be inserted into meshes of the filter screen in the ascending process, the filter screen can be pulled through a knocking rod to generate the last strong vibration when the self-cleaning mechanism is reset, and when the knocking rod is reset, the knocking rod can strike a screen penetrating needle violently due to inertia to generate vibration, so that dust on hair of a brush is vibrated off, the self-cleaning purpose is achieved, and the purpose of self-cleaning the filter screen in the fertilizer dust screening process is comprehensively achieved.

Description

technical field [0001] The invention relates to the technical field of fertilizer production, in particular to a device for screening the quality of fertilizers after production. Background technique [0002] When making fertilizers, it is often necessary to granulate powdered fertilizers through a high-pressure collision granulator after being stuffed, but the granulated particles are often doped with a large amount of dusty fertilizers, and after passing through the plastic machine, they are often due to friction It will also increase the amount of non-plastic dust, which will cause great inconvenience in the subsequent bagging or further processing, and the dust fertilizer may cause a dust explosion when it encounters an open flame, so it needs to be screened after granulation. Carry out the next step process, but too much dust will condense on the filter screen during the screening process, causing the problem of low screening efficiency, so a screening device can achiev...

AI Technical Summary

Problems solved by technology

[0002] When making fertilizers, it is often necessary to granulate powdered fertilizers through a high-pressure collision granulator after being stuffed, but the granulated particles are often doped with a large amount of dusty fertilizers, and after passing through the plastic machine, they are often due to friction It will also increase the amount of non-plastic dust, which will cause great inconvenience in the subsequent bagging or further processing, and the dust fertilizer may cause a dust explosion when it encounters an open flame, so it needs to be screened after granulation. Carry out the next step process, but too much dust will condense on the filter screen during the screening process, causing the problem of low screening efficiency, so a screening device can achieve the self-cleaning filter screen during the fertilizer dust screening process Effect

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