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Lead explosive coating process for micro-smoke environment-friendly firecracker

An environmental protection and firecracker technology, applied in the field of firecrackers, can solve problems such as non-compliance with environmental protection policies, heavy smog, and frequent safety accidents in firecracker production enterprises, so as to achieve the effects of improving safety, reducing air pollution, and ensuring safe production

Pending Publication Date: 2021-06-15
湖南省科富花炮实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Disadvantages of the existing technology: 1. After setting off, the smoke is large and contains pollutants such as sulfur, which does not conform to the national environmental protection policy; 2. Due to the danger of explosion during the charging process, safety accidents in firecracker production enterprises occur from time to time, and firecracker production The safety accidents of enterprises are all serious casualties, so it is necessary to develop a firecracker that is not only environmentally friendly but also improves safety production performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] The lead drug coating process of the micro-smoke environmental protection firecrackers, which includes the following steps:

[0015] 1. Weigh a certain quality of water-based polyurethane emulsion, add it to a single-necked flask filled with 50mL distilled water at room temperature, and stir at a constant temperature of 60°C to mix the two evenly;

[0016] 2. After a certain period of time, add an appropriate amount of surfactant and continue stirring at constant temperature for 30 minutes;

[0017] 3. Cool down to the demulsification temperature, add a certain quality of nickel hydrazine nitrate, stir well to make the mixture even;

[0018] 4. Add the alum solution dropwise to the flask at an appropriate rate, and stir at an appropriate temperature for a certain period of time, so that the water-based polyurethane is precipitated from the emulsion and coated on the surface of nickel hydrazine nitrate;

[0019] 5. Cool down, filter with suction, wash with water for 2 t...

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PUM

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Abstract

The invention discloses a lead explosive coating process for a slight-smoke environment-friendly firecracker, and relates to the technical field of firecrackers. The process comprises the following steps: weighing a certain mass of waterborne polyurethane emulsion, adding the emulsion into a single-mouth flask containing 50mL of distilled water at normal temperature, and performing stirring at the constant temperature of 60 DEG C to uniformly mix the emulsion and the distilled water; after a certain period of time, adding a proper amount of surfactant; cooling to a demulsification temperature, adding a certain mass of nickel hydrazine nitrate, and performing full stirring for uniform mixing; dropwise adding an alum solution into the flask at a proper speed, and performing stirring for a certain time at a proper constant temperature, so that the waterborne polyurethane is separated out from the emulsion and coats the surface of the nickel hydrazine nitrate; and performing cooling, suction filtration, and washing with water for 2-3 times, and performing drying to obtain a polyurethane coated nickel hydrazine nitrate sample. According to the method, silver powder, sulfur and single-base powder are not used, Chinese fir charcoal is used as a reducing agent, a trace amount of sulfur-free smoke is generated, and wet charging and wet ignition are utilized, so that the safety is improved, the safety production is ensured, and meanwhile, the air pollution is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of firecrackers, in particular to a drug coating process for lead wires of micro-smoke environment-friendly firecrackers. Background technique [0002] Disadvantages of the existing technology: 1. After setting off, the smoke is large and contains pollutants such as sulfur, which does not conform to the national environmental protection policy; 2. Due to the danger of explosion during the charging process, safety accidents in firecracker production enterprises occur from time to time, and firecracker production The safety accidents of enterprises are all serious casualties, so it is necessary to develop a firecracker that is not only environmentally friendly but also improves safety production performance. Contents of the invention [0003] The object of the present invention is to provide a safe and environment-friendly lead drug coating process for smokeless and environment-friendly firecrackers aiming a...

Claims

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Application Information

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IPC IPC(8): C06B21/00C06B23/00C06B31/00
CPCC06B21/0083C06B31/00C06B23/005
Inventor 郭建虎陈留云潘江平
Owner 湖南省科富花炮实业有限公司