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Pretreatment method of caked raw material

A raw material and pretreatment technology, applied in the direction of grain processing, etc., can solve the problem that powder caking cannot be completely solved, and achieve the effect of reducing labor intensity, reducing operation difficulty, and overcoming technical gaps

Inactive Publication Date: 2019-01-04
XIAN AEROSPACE CHEM PROPULTION PLANT
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem that powder agglomeration cannot be completely solved in the prior art, the present invention proposes a pretreatment method for agglomerated raw materials

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  • Pretreatment method of caked raw material
  • Pretreatment method of caked raw material
  • Pretreatment method of caked raw material

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Embodiment Construction

[0021] Optimize the raw material pretreatment process, and change the original treatment process from directly passing through a 20-mesh sieve to pre-drying to using a pulverizer to crush and then sieve.

[0022] The present embodiment is a kind of agglomerated raw material pretreatment method, and concrete process is:

[0023] Step 1, crushing agglomerated raw materials. A pulverizer is used to pulverize the agglomerated lead chromate raw material to obtain powdered lead chromate raw material. In this embodiment, the agglomerated raw material is lead chromate raw material; the pulverizer selected is YB-2000A type.

[0024] include:

[0025] 1. Add the agglomerated lead chromate raw material into the crushing bin of the crusher. The lead chromate raw material added should not exceed two-thirds of the crushing bin.

[0026] 2. Turn on the pulverizer to pulverize the agglomerated lead chromate raw material in the pulverization chamber. The pulverization time is determined t...

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Abstract

The invention relates to a pretreatment method of a caked raw material. The method comprises the steps that the caked raw material is crushed through a crusher; powder obtained after crushing is sieved. Pretreatment of 1.6 Kg of caked lead chromate raw materials can be completed rapidly, the problems that an original technology is low in manual treatment efficiency, and the pretreatment effect cannot be guaranteed are reduced, and the quality of caked raw material pretreatment is guaranteed. The pretreatment efficiency is improved, the operating difficulty is lowered, and the potential qualityhazard is eliminated. Accordingly, the crusher is made of stainless steel materials, in the caked raw material pretreatment process, rapidness and reliability are achieved, the technical gap problemis effectively solved, the operating difficulty is lowered, the labor intensity is effectively lowered, the quality and efficiency of caked raw material crushing are improved, the problem that the power part has yellow spots is solved, and the product quality is guaranteed.

Description

technical field [0001] The invention relates to the field of solid rocket motors, in particular to a method for pretreatment of agglomerates produced during the procurement and storage of certain chemical raw materials Background technique [0002] In the production process of a small solid rocket motor, some chemical raw materials will agglomerate during the procurement and storage process, such as lead chromate. In the weighing process, it is necessary to pretreat the raw material block of the agglomerate before using it. [0003] The existing technology is to use a 20-mesh sampling sieve to sieve (if there are agglomerates, crush and sieve), and then use it after pre-drying. However, during the production process, due to the hard agglomeration, it cannot be pulverized after manual crushing and sieving, and yellow spots appear on the surface of the medicine, which seriously affects the product quality and production progress of the medicine column. Contents of the inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C21/00B02C23/16
CPCB02C21/00B02C23/16
Inventor 沈明张博高增鹏韩晓娟曹巍
Owner XIAN AEROSPACE CHEM PROPULTION PLANT
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