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Coal mine permitted industrial electric detonator

An electric detonator and industrial technology, which is applied in the field of permitted industrial electric detonators in coal mines to achieve the effects of ensuring safety, good dispersion and improving gas safety performance

Inactive Publication Date: 2015-03-25
山东圣世达化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a coal mine permitted industrial electric detonator, which fundamentally solves the problem of the gas safety of the coal mine permitted industrial electric detonator and ensures the safety of coal mine blasting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] An industrial electric detonator approved for use in coal mines, including a delay body and a composite primer, the composite primer is made of the following raw materials: 75 grams of nickel hydrazine nitrate, 8 grams of cryolite, 10 grams of RDX, and 5 grams of Taian. Coating RDX, Taian and cryolite mixture with nickel hydrazine nitrate, granulating with binder carboxymethylcellulose (2 grams) and sodium dodecylbenzenesulfonate (0.02 grams);

[0050] Five-core lead delay body, wherein the delay drug is a flame suppressant calcium fluoride with a mass fraction of 7% added to the commercially available lead-dan-silicon series delay drug;

[0051] Copper-plated shell and tube body, rigid electric ignition powder head;

[0052] One charge of RDX (containing 14% calcium fluoride as a flame suppressant) 350 mg;

[0053] Secondary charge RDXOGEN (contains 6% calcium fluoride as a flame suppressant) 340 mg;

[0054] 330 mg composite primer;

[0055] The preparation method ...

Embodiment 2

[0057] An industrial electric detonator permitted for use in coal mines, including a plastic inner cap and a composite primer. The composite primer is made of the following raw materials: 54 grams of lead trinitroresorcinol, 12 grams of calcium fluoride, and 34 grams of Taian , mix these three materials evenly.

[0058] Plastic inner cap material composition: 65 grams of high pressure polyethylene, 35 grams of polyethersulfone (PES);

[0059] Flange shell and tube body, elastic electric ignition charge;

[0060] 440 mg of a single charge of RDX (containing 12% calcium fluoride as a flame suppressant);

[0061] Secondary charge Taian (without flame suppressant) 150 mg;

[0062] 280 mg compound primer;

[0063] The preparation method is as follows: after the primary charge RDX is pressurized, the secondary charge Taian and composite priming charge are sequentially loaded, and then the plastic inner cap is pressed together, and the bayonet operation is performed to finally for...

Embodiment 3

[0065] An industrial electric detonator permitted for use in coal mines, comprising a delay body and a composite primer, the composite primer is made of the following raw materials in parts by weight: 75 grams of dinitrodiazophenol, 10 grams of lead azide, 5 grams of cryolite gram, 10 grams of RDX; coat the mixture of RDX and cryolite with a mixture of dinitrodiazophenol and lead azide, use peach gum (3 grams) and sodium dodecylbenzenesulfonate ( 0.02 g) granulation;

[0066] Three-core lead-delay body, wherein the delay medicine is cryolite with a mass fraction of 6% added to the commercially available lead-dan-silicon series delay medicine;

[0067] Copper-clad shell tube body, rigid electric ignition powder head;

[0068] One charge of RDX (containing 14% flame suppressant cryolite) 350 mg;

[0069] Secondary charge RDXOGEN (containing 6% flame suppressant cryolite) 340 mg;

[0070] 320 mg composite primer;

[0071] The preparation method is as follows: the primary and ...

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PUM

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Abstract

The invention belongs to the technical field of industrial detonators, and in particular relates to a coal mine permitted industrial electric detonator; the coal mine permitted industrial electric detonator comprises an inner cap, a delay body and a compound primary explosive; the compound primary explosive comprises a primary explosive, a flame inhibitor, a high explosive and an adhesive; the primary explosive is one or more selected from the group including dinitrodiazophenol, lead azide, lead trinitroresorcinate and nickel hydrazine nitrate; the high explosive is one or more selected from the group including cyclonite and pentaerythrite tetranitrate; and the flame inhibitor is one or more selected from the group including a cryolite flame inhibitor, a calcium fluoride flame inhibitor and a sodium fluoride flame inhibitor. According to the invention, aiming at the problem that gas explosion is easily caused by the industrial electric detonator, the novel coal mine permitted industrial electric detonator is provided; the gas safety problem is solved; coal mine blasting safety is ensured; and the coal mine permitted industrial electric detonator has good popularization value and is applied to scale production.

Description

technical field [0001] The invention belongs to the technical field of industrial detonators, in particular to an industrial electric detonator permitted in coal mines. Background technique [0002] At present, the primary explosives used in the production of industrial electric detonators permitted in coal mines in my country are generally single-substance primary explosives, such as dinitrodiazophenol, lead azide, lead trinitroresorcinol, and nickel hydrazine nitrate. etc. There are also reports of manufacturers using mixed primers such as lead nitride and lead styphate co-precipitated primers. For the primary charge of the electric detonator permitted in coal mines, the primary charge is generally granulated with a flame suppressant, and the second charge is also granulated with a flame suppressant. Granulated RDXOGEN. Due to the reasons of materials, process technology and quality control of various detonator manufacturers, especially under the condition of mass product...

Claims

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Application Information

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IPC IPC(8): C06C7/00C06B41/00C06B25/34
Inventor 江道友白青葛福朋管延义吕国栋李勇于双全司龙刚陈星
Owner 山东圣世达化工有限责任公司
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