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Production technology of ignition charge specially used for digital electronic detonator

A technology of digital electronic detonator and production process, which is applied in the direction of alkali metal composition, etc., can solve the problems such as the inability to meet the requirements and the large range of the second volume of ordinary drug heads.

Inactive Publication Date: 2017-06-13
QIANJIN IND EXPLOSIVES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous advancement of science and technology, digital electronic detonators and their detonation systems have developed rapidly. Digital electronic detonators have become the development direction of industrial detonators. Because of their precise delay time, high safety, economy, and environmental protection, The application in the blasting equipment industry will become more and more extensive, especially the high precision, which makes it widely used in urban demolition blasting and special blasting, but the range of ordinary explosive heads is large and cannot meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Weigh potassium chlorate 40g, lead thiocyanate 30g, nitrocellulose 10g, potassium chlorate pass 320 mesh sieve, lead thiocyanate pass 100 mesh sieve.

[0014] The production process includes the following steps: (1) Put 10 g of nitrocellulose, 200 g of butyl acetate, and 10 g of polyvinyl acetate emulsion adhesive into a mixing bucket and stir evenly to prepare an adhesive solution with a concentration of 4.5% by mass; (2), mix 40g of potassium chlorate, 30g of lead thiocyanate, and the adhesive solution obtained in step (1) according to the above-mentioned parts by weight, and fully stir them evenly with a bakelite stick to prepare the ignition powder; then, cover with a damp cloth , Put the ignition powder into a glass desiccator for standby, and the ignition powder is in an environment with a humidity of 60%.

Embodiment 2

[0016] Weigh potassium chlorate 90g, lead thiocyanate 80g, nitrocellulose 30g, potassium chlorate pass 320 mesh sieves, lead thiocyanate pass 100 mesh sieves.

[0017] The production process includes the following steps: (1), put 30g of nitrocellulose, 535g of ethyl acetate, and 35g of polyvinyl acetate emulsion adhesive into a mixing bucket and stir evenly to prepare an adhesive solution with a concentration of 5% by mass; (2), mix 90g of potassium chlorate, 80g of lead thiocyanate, and the adhesive solution obtained in step (1) according to the above parts by weight, and fully stir them evenly with a bakelite stick to prepare the ignition powder; then, cover with a damp cloth , Put the ignition powder into a glass desiccator for standby, and the ignition powder is in an environment with a humidity of 70%.

Embodiment 3

[0019] Weigh potassium perchlorate 100g, lead thiocyanate 85g, nitrocellulose 35g, potassium perchlorate pass 320 mesh sieve, lead thiocyanate pass 100 mesh sieve.

[0020] The production process includes the following steps: (1) Put 35 g of nitrocellulose, 412.5 g of ethyl acetate, and 52.5 g of polyvinyl acetate emulsion adhesive into a mixing bucket and stir evenly to prepare an adhesive with a concentration of 7% by mass solution; (2), mix potassium perchlorate 100g, lead thiocyanate 85g, and the adhesive solution obtained in step (1) according to the above-mentioned parts by weight, and fully stir them evenly with a bakelite stick to obtain an ignition powder; then, use Cover it with a damp cloth, put the primer in a glass desiccator for standby, and keep the primer in an environment with a humidity of 75%.

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Abstract

The invention discloses a production technology of ignition charge specially used for a digital electronic detonator. The ignition charge is prepared from the following raw materials in parts by weight: 8-12 parts of potassium chlorate or potassium perchlorate, 6-10 parts of lead thiocyanate and 2-4 parts of nitrocotton. The production technology comprises the following steps: (1) putting nitrocotton, butyl acetate or ethyl acetate and polyvinyl acetate emulsion adhesive into a glue preparation barrel, and uniformly stirring, so that adhesive solution with the mass percent concentration of 3-10% is obtained; (2) mixing potassium chlorate or potassium perchlorate and lead thiocyanate with the adhesive solution obtained in the step (1) according to the parts by weight, fully and uniformly stirring by adopting a bakelite rod, so that the ignition charge is obtained; and then covering with wet cloth, putting the ignition charge into a glass dryer for later use, and enabling the ignition charge to be in an environment with the humidity of 60-80%. The production technology disclosed by the invention guarantees initiation reliability and high precision of the digital electronic detonator.

Description

technical field [0001] The invention relates to the technical field of digital electronic detonators, in particular to a production process of special ignition powder for digital electronic detonators. Background technique [0002] With the continuous advancement of science and technology, digital electronic detonators and their detonation systems have developed rapidly. Digital electronic detonators have become the development direction of industrial detonators. Because of their precise delay time, high safety, economy, and environmental protection, The application in the blasting equipment industry will become more and more extensive, especially the high precision, which makes it widely used in urban demolition blasting and special blasting, but the range of ordinary explosive heads is too large to meet the requirements. Contents of the invention [0003] In order to solve the above problems, the object of the present invention is to provide a production process for spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B29/20
CPCC06B29/20
Inventor 贾海波钟明寿费鸿禄易克张北龙张朝阳曲广建
Owner QIANJIN IND EXPLOSIVES CO LTD
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