Medical intermediate screening device provided with internal layered drying mechanism

Abstract

The invention relates to the technical field of screening devices, in particular to a medical intermediate screening device provided with an internal layered drying mechanism. The screening device comprises a screening cylinder, wherein a feeding frame is arranged on the top face of the screening cylinder, a driving shaft is arranged in the screening cylinder, distributing frames are arranged on the surface of the driving shaft, a connecting plate is arranged on the surface of each distributing frame, a partition plate is arranged on the surface of each distributing frame, and a driving motoris arranged on the surface of each partition plate. The medical intermediate screening device provided with the internal layered drying mechanism has the advantages that the driving shaft is additionally arranged in the screening cylinder, and the distributing frames are additionally arranged on the surface of the driving shaft; after materials are put into the distributing frames, the driving shaft rotates to drive the distributing frames to load the materials to move in the screening cylinder, and axe-type stirring shafts mix the materials in the distributing frames; and when the distributing frames reach the positions of sieve plates, the materials with particles smaller than meshes of the sieve plates in the mixed materials fall down, and therefore three groups of sieve plates with different meshes are additionally arranged at the bottom of the screening cylinder to realize multi-stage screening of the materials.

Description

technical field [0001] The invention relates to the technical field of screening devices, in particular to a screening device for pharmaceutical intermediates with a built-in layered drying mechanism. Background technique [0002] Pharmaceutical intermediates are actually some chemical raw materials or chemical products used in the process of pharmaceutical synthesis. This kind of chemical product does not require a drug production license, and can be produced in ordinary chemical factories. As long as it reaches a certain level, it can be used in the synthesis of drugs. [0003] However, in the process of preliminary processing of pharmaceutical intermediates, it is necessary to screen the particles of chemical raw materials, and keep the chemical raw materials that meet the production requirements for use. However, in some small processing workshops, during the screening process of chemical raw material particles The main problems are as follows: a: The size of the screen...

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Problems solved by technology

[0003] However, in the process of preliminary processing of pharmaceutical intermediates, it is necessary to screen the particles of chemical raw materials, and keep the chemical raw materials that meet the production requirements for use. However, in some small processing workshops, during the screening process of chemical raw material particles The main problems are as follows: a: The size of the screened particles is not uniform, which leads to problems in the synthesis and use of the screened chemical raw materials, and the circular screening of materials cannot be realized; b: Some large-scale screening equipment is expensive and has a complex structure , resulting in the general small processing workshops being unaffordable, or the cost of use is high; c: Most of the small screening equipment on the market has low screening efficiency, and the screened materials lack a drying structure

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