Bulk emulsified base material pneumatic loading equipment for under-well medium-length hole

Abstract

The invention relates to a bulk emulsified base material loading equipment for an under-well medium-length hole, which comprises an emulsified base material storage and delivery device, a sensitizing solution storage and delivery device, a cleaning water storage and delivery device, an injector, a mixer and a pneumatic loading device, wherein the injector is used for injecting emulsified base materials and the sensitizing solution into a blast hole. The pneumatic loading device comprises a compressed air source and a pneumatic motor, the pneumatic motor used as power source is connected with a base material pump and a sensitizing solution pump and drives the same to pump the emulsified base materials and sensitizing solution. The conventional explosive loading mode in explosion of the under-well medium-length hole in our nation is changed, and the bulk emulsified base material pneumatic loading equipment for the under-well medium-length hole has the advantages of low cost, high performance and safety and environment-friendly performance.

Description

technical field [0001] This application relates to mining blasting technology, in particular to a pneumatic filling equipment for medium and deep hole bulk emulsified matrix underground. Background technique [0002] At present, my country's engineering blasting is still mainly filled with packaged explosives and explosive rolls, which are manually pushed into the blast holes with wooden sticks or blown into the blast holes by high-pressure wind through a pneumatic charge machine. This blasting construction technology Explosives with detonator sensitivity level 1.1 are generally used, which have poor safety during production, storage, transportation, storage, and loading, and the labor intensity of workers is high, and packaging explosive rolls will cause a lot of waste of packaging materials. Explosive rolls It needs to be packed in paraffin paper tube or plastic tube, plastic middle bag, backing plate, carton, and packing tape. The manufacturing cost is high and it will caus...

AI Technical Summary

Problems solved by technology

[0002] At present, my country's engineering blasting is still mainly filled with packaged explosives and explosive rolls, which are manually pushed into the blast holes with wooden sticks or blown into the blast holes by high-pressure wind through a pneumatic charge machine. This blasting construction technology Explosives with detonator sensitivity level 1.1 are generally used, which have poor safety during production, storage, transportation, storage, and loading, and the labor intensity of workers is high, and packaging explosive rolls will cause a lot of waste of packaging materials. Explosive rolls It needs to be packed in paraffin paper tube or plastic tube, plastic middle bag, backing plate, carton, and packing tape. The manufacturing cost is high and it will cause waste of packaging materials. In addition, this kind of pyrotechnic product generates a lot of gunpowder smoke, which is easy to cause large Pollution

[0003] This finished explosive is mostly powdered ammonium nitrate explosive or packaged emulsion explosive. The formula of the explosive itself is relatively complicated, and there are many packaging materials. Energy saving and environmental protection requirements

Moreover, the density of the explosive is a fixed value after leaving the factory, which is not adjustable and cannot be adjusted with changes in rock conditions and environments.

From a safety point of view, this kind of finished packaged explosives has a No. 8 industrial detonator sensitivity, and its production, transportation, storage, and filling processes are of Class 1.1 danger level, and it does not have intrinsic safety from explosive production to on-site charging. Level

[0004] Moreover, because the blasting construction method of finished packaged explosives cannot realize fully coupled charge in the blast hole, it is difficult to effectively remove the accumulated water in the hole, so the blasting effect is poor, and the cost of perforation is wasted

[0005] At present, emulsion explosives are used in underground medium and deep hole blasting, mainly using electric charging devices. There are leakage hazards, safety protection measures are not complete, and explosives backflow and scatter relatively quickly, which may cause discontinuous charging and half-explosion. At the same time, it is necessary to install a backstop, which is labor-intensive and time-consuming.

[0006] Another solution is to use the pneumatic charging machine to directly blow powdered explosives or viscous granular ammonium oil explosives with detonator sensitivity. There are electrostatic hazards, high-pressure wind hazards, and explosives scattered seriously. This method and process do not have intrinsic safety. Level

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