Multi-stage screening device for chemical powder materials

Abstract

The invention relates to a multistage screening device for chemical powder materials. The multistage screening device comprises a bottom plate, a screening barrel, a connecting frame, a shaking component, a connecting component and a screening component. According to the screening component, multi-stage vibration screening treatment can be conducted on chemical powder materials, the chemical powder materials adhering to the inner wall of a screening shell can be brushed off in time through a cleaning unit, waste of the chemical powder materials is effectively reduced, the screening cost is reduced, and secondly, scraping teeth arranged on the cleaning unit not only can play a role in stirring chemical powder materials in the screening shell in the screening process, but also can crush the caked chemical powder materials to prevent the caked chemical powder materials from blocking screening holes, and meanwhile, in the screening process, the shaking component and the connecting component can be matched with each other, so that the chemical powder materials in the screening shell are driven to shake, and the screening efficiency of the chemical powder materials is effectively improved.

Description

technical field [0001] The invention relates to the field of screening of chemical powder materials, in particular to a multi-stage screening device for chemical powder materials. Background technique [0002] Material screening refers to the operation process of dividing materials with uneven particle size into various particle size levels by using a screen surface with holes; chemical powder materials need to be screened before use, so as to obtain chemical powder materials of different particle size levels , so that it can be used according to different usage requirements. [0003] The utility model patent No. 2016211233226 discloses a powder vibrating screening device, including a housing, a vibrating motor and a vibrating device. The vibrating motor is connected to the vibrating device. Effectively improve the screening efficiency. [0004] The invention patent with the patent number of 2019111931796 discloses a powder screening device, which specifically includes a l...

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Problems solved by technology

[0005] However, the above-mentioned patents will encounter the following problems in the screening process: a. The powdery material is easy to adhere to the inner wall of the screening shell and cannot be scraped off or cleaned in time, which will easily cause waste of raw materials, thereby increasing the amount of material The cost of screening; b. Since the powdery material is easy to agglomerate and cannot be broken in time during the screening process, the agglomerated material is easy to block the sieve holes, thereby reducing the efficiency of screening

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