Material screening device for chemical raw material and medicine processing

Abstract

The invention discloses a material screening device for chemical raw material and medicine processing. The material screening device for chemical raw material and medicine processing comprises vibrating platforms and a bearing base plate. The bottoms of the vibrating platforms are both fixedly provided with extension supporting arms. The extension supporting arms penetrate through the inner portion of the bearing base plate and are fixed into the bearing base plate. The bearing base plate is in a reversed circular truncated cone shape. A supporting frame is fixedly installed on the top of the bearing base plate. The bottoms of the two ends of the supporting frame are further fixedly provided with outward-extension bearing frames. The bottom of the bearing base plate and the bottoms of the outward-extension bearing frames are located on the same plane. According to the material screening device for chemical raw material and medicine processing, through the sorting function of a feeding device and the blowing sorting function of a dust sorting motor, small-particle dust meeting a particle requirement is blown into a material receiving buffering chamber first of all, the step-by-step sorting process of ultra-tiny particle dust is avoided, the actual sorting process is improved, conversion of vibrating efficiency is improved, through the screening function of multi-stage sorting chambers and classified screening plates, screening is conducted step by step, sorting isolation and temporary storage plates are used for conducting isolating and buffering, and the accuracy rate of the screening process is improved.

Description

technical field [0001] The invention relates to the field of material screening equipment, in particular to a material screening device for chemical raw materials and pharmaceutical processing. Background technique [0002] At present, the widely used screening device mainly adopts the combination of vibration and mesh screening plate for screening. Its main working principle is to vibrate the screening plate through the vibration of the vibration motor, so as to realize the mechanical screening of materials. However, the sorting capacity of the screening machine of this structure is related to the vibration frequency of the motor and the specification of the screening plate. Time-sharing will have the problem of low screening efficiency. Especially when performing multi-level screening, multiple screening devices need to be equipped for on-line screening, which greatly reduces the screening efficiency. Moreover, in the existing screening, belt transmission is mainly used...

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Problems solved by technology

[0004] However, in the above-mentioned similar technical solutions, there are mainly problems in the following aspects: first, in actual work, it is difficult to adjust and determine the natural frequency of the vibration motor according to the actual screened material, that is, at the same vibration power Under certain conditions, the most effective vibration effect cannot be achieved, and the vibration energy cannot be reasonably used; secondly, in the screening process, the screening can only be carried out step by step according to the set assembly line form, but the screening efficiency of this screening is very low , and in some special cases, the screening of very fine particles generally cannot be completed until the final process, and in the process of screening, a full set of protective devices are required to prevent dust and particles from escaping. It is also another burden for the actual screening device. At the same time, the mixing of particles of different sizes will also reduce the actual screening efficiency.

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