A kind of warm-pressed gunpowder and preparation method thereof

Abstract

The invention relates to a warm-pressed gunpowder, which adopts nitrates and / or oxides, combustible agents and combustion-accelerating agents as raw material components and performs appropriate proportioning, and the finally prepared warm-pressed gunpowder will ignite only at high temperatures, effectively ensuring production , Transportation, storage and use are safe throughout; large heat generation, high burning speed, can generate high heat and impact energy to participate in "harmonious blasting" work, will not produce detonation reaction, will not produce detonation waves, and avoid blasting vibration and flying stone hazards The mechanical sensitivity of the raw materials is low, the safety is high, and the combustion products are mainly condensed phase substances, which can effectively reduce the fluctuation of combustion speed; thus, when the temperature-pressure propellant of the present invention is used for blasting operations, the predetermined blasting can be achieved. effect, and realize the fundamental control of the harmful effects of blasting, and finally realize fast, efficient, safe, reliable, green and economical blasting operations.

Description

technical field [0001] The invention belongs to the technical field of gunpowder, and in particular relates to a warm-pressed gunpowder and a preparation method thereof. Background technique [0002] Engineering blasting, as a technical science applicable to energy mining, mining, urban construction and traffic construction, plays an important role in the development of the national economy and is increasingly valued by people. Especially in recent decades, under the guidance of the national reform and opening policy, the development has been particularly rapid, exceeding the development level of any previous period, making great contributions to social construction and achieving good benefits in the national economy. . With the development of engineering blasting technology, the demand and requirements for gunpowder continue to increase. [0003] Black powder is prepared by mixing potassium nitrate, sulfur, and charcoal according to the mass ratio of 75:10:15. However, wh...

AI Technical Summary

Problems solved by technology

[0004] (1) The amount of gas produced by combustion is large, and the burning rate fluctuates greatly;

[0005] (2) The density of black powder agent is small, and the working ability per unit volume is small;

[0006] (3) Due to the large difference in specific gravity between the raw materials, it is difficult to mix them uniformly, causing the gas products to produce toxic gases at the use site;

[0007] (4) The mechanical sensitivity of dry black powder is high, the danger in production is high, and the black powder is easy to be affected by moisture and deteriorate;

[0008] (5) The temperature of plastic products is too high during processing, which will cause accidental combustion of black powder, especially the temperature resistance of sulfur-containing black powder is extremely poor;

[0009] (6) When in use, it will cause accidents due to the pressure of heavy objects, such as anger at the bend of the fuse, which will cause rapid combustion