A kind of manufacturing method of physically sensitized deep water blasting emulsion explosive

Abstract

The invention belongs to the application technical field of explosives, and provides a method for manufacturing a physically sensitized deep-water blasting emulsion explosive. After the true density, apply the same hydraulic pressure to the required water depth to measure the crush rate under high pressure; select the crush rate η to be less than 18%, and the true density ρ z At 0.1~0.3 / cm 3 The inorganic closed-cell foam particles between them are used as physical sensitizers of deep-water explosives; the surface of inorganic closed-cell foam particles is treated with lipophilicity; the crush rate η and true density ρ of known physical sensitizers z , material theoretical density ρ t , matrix density ρ of emulsion explosive b , according to the mass content x of the adjusted physical sensitizer, the deep water density ρ of the explosive is calculated h . By adopting physical sensitization of conventional emulsion explosive matrix, the original production line and basic process of emulsion explosive are not changed, and the manufacturing cost of emulsion explosive is not significantly increased.

Description

Technical field [0001] The present invention belongs to the application of explosives, and it is related to the method for producing a physical sensitized deep water blasting emulsion explosive. Background technique [0002] Deep water blasting plays an important role in our country's port reconstruction, expansion, port and waterway construction. The emulsified explosives mainly with ammonium nitrate are widely used in the aquatic environment blasting operation due to its good explosive performance, water resistance and safety performance, whether it is explosive preparation or performance testing, and is quite mature. However, when the emulsion explosive is applied to underwater blasting, especially in large underwater blasting construction, the explosion performance decreases very obvious, and even inadequate explosion, refusal, explosion interruption, etc., severely affects blasting effect, ordinary emulsification Explosives have not been able to meet the needs of deep water ...

AI Technical Summary

Problems solved by technology

In addition to higher costs, it is more likely to lead to a reduction in the production and storage safety of emulsion explosives, and some require changes to existing explosive production lines and basic processes, which will lead to a substantial increase in production costs

On the other hand, since the density of emulsion explosives in deep water will change due to water pressure, the detonation performance of the explosives will change with the water depth, which is often unknown, resulting in uneven blasting effects and difficult to estimate

In addition, the test procedure for directly testing the detonation of explosives in a deep-water high-pressure environment in the field is complicated, and the reliability of the obtained data is poor. Therefore, after a large number of blasts are often required, the actual blasting effect is used as the evaluation standard for explosives. greater demand

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