A whistle-type continuous acid-flooding washing method suitable for explosives

A washing method, air-whistle technology, applied in the field of acid-displacement washing, air-whistle-type continuous acid-displacement washing, can solve the problems of large amount of washing water, discontinuous operation, low efficiency, etc., and achieve reduced consumption and high operability Strong, low energy consumption effect

Active Publication Date: 2020-05-29
XIAN MODERN CHEM RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problems of low efficiency, long period, large amount of washing water, and discontinuous operation in the existing explosive acid-displacement washing process, the purpose of the present invention is to provide an explosive acid-displacement process with high processing efficiency, continuous operation, and easy industrial implementation. cleaning method

Method used

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  • A whistle-type continuous acid-flooding washing method suitable for explosives
  • A whistle-type continuous acid-flooding washing method suitable for explosives

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The present embodiment carries out as follows:

[0029] (1) The RDX suspension from the nitration synthesis crystallization process enters the vacuum drum filter 1 with a rotating speed of 1.0rpm through the pipeline, and realizes the separation of RDX and the mother liquor under the action of a vacuum of 0.08MPa, and the mother liquor enters the mother liquor receiving tank 3 , the 5g filter cake TATB of filtering gained enters the 25L first stirring washing kettle 2 that connects through feeding channel, and the first stirring washing kettle 2 adds 18L washing water through pipeline, is that 80rpm mechanical agitation is carried out once washing at rotating speed, washing temperature Adjust and control the heat transfer at 55°C through the circulation flow heat transfer of the constant temperature heat transfer oil in the jacket of the washing kettle in the high and low temperature integrated machine (13);

[0030] (2) After stirring and washing once, open the meterin...

Embodiment 2

[0034] The present embodiment carries out as follows:

[0035](1) The TATB suspension from the nitration synthesis crystallization process enters the vacuum drum filter 1 with a rotating speed of 1.2rpm through the pipeline, and realizes the separation of TATB and the mother liquor under the action of a vacuum of 0.07MPa, and the mother liquor enters the mother liquor receiving tank 3 , the 6g filter cake TATB of filtering gained enters the 25L first stirring washing kettle 2 that connects through feeding channel, and the first stirring washing kettle 2 adds the washing water of 20L through pipeline, is that 70rpm mechanical agitation is carried out once washing at rotating speed, washing The temperature is adjusted and controlled at 60°C through the heat transfer of the constant temperature heat transfer oil in the high and low temperature integrated machine 13 in the jacket of the washing kettle;

[0036] (2) After stirring and washing once, open the metering diaphragm pump ...

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PUM

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Abstract

The invention relates to an air whistle type continuous acid driving washing method applicable to explosives, belonging to the technical field of processes of explosives and gunpowder. The air whistletype continuous acid driving washing method is characterized in that the acid removing washing process of the explosive is enhanced by utilizing the cavitation effect generated by an air whistle sound-energy generation device so as to improve the acid removing washing efficiency and reducing the acid content of a product. The air whistle type continuous acid driving washing method comprises the following main steps that a combined process of air whistle acid removing washing and stirring acid removing washing is adopted to reduce the acidity of the explosive to the quality requirement (generally less than or equal to 0.05%), and the specific implementation process comprises separation of the explosive and crystallizing mother liquor, primary stirring and washing, air whistle acid removingwashing, secondary stirring and washing and continuous filtering separation. According to the air whistle type continuous acid driving washing method, the problems of low efficiency, long period, large washing water use amount, high energy consumption, and discontinuous operation and the like in the traditional stirring acid removing washing can be solved, the acid removing washing efficiency ishigh, continuous operation is achieved, the acid content of the explosive can be greatly reduced and an explosive wet product with the acidity less than or equal to 0.05% can be obtained.

Description

technical field [0001] The invention belongs to the technical field of propellants and explosives, and relates to a whistle-type continuous acid-displacement washing method, in particular to a method for explosives that adopts the whistle principle and has the advantages of high processing efficiency, short cycle, continuous operation, and low energy consumption. Acid-displacement washing method. Background technique [0002] When developing and using various mixed explosives in various countries in the world, the acidity control of the relevant single explosives is relatively strict, and clear quality requirements are put forward. For example, it is stipulated that the acidity of RDX produced by the direct method is ≤0.05%. The production of most explosives adopts the nitrification method, and the method of mechanical stirring and washing is usually used to drive out the residual acid in the crystal to achieve the purpose of reducing the acidity of the crystal. The process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B21/00
Inventor 张幺玄廉鹏康超罗志龙陈松陈基
Owner XIAN MODERN CHEM RES INST
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