Mechanical explosive-filling device and method for filling explosive by using same

Abstract

The invention discloses a mechanical explosive-filling device and a method for filling explosive by using the same. The mechanical explosive-filling device comprise a forced air input end connector, a forced air valve and a three-way pipe which are sequentially connected, wherein the forced air valve is connected with a first end of the three-way pipe, which is in the horizontal direction, one end of the three-way pipe, which is perpendicular to the horizontal direction, is connected with a first pagoda-shape connector, an explosive input pipe is connected with the first pagoda-shape connector, a second end of the three-way pipe, which is in the horizontal direction, is connected with a second pagoda-shape connector, and an explosive output pipe is connected with the second pagoda-shape connector; the mechanical explosive-filling device also comprises a cylindrical small-hole component, the hole diameter of one end of the small-hole component is larger than the hole diameter of the other end of the small-hole component, the end with a large hole diameter is longer than the end with a small hole diameter, the end with a large hole diameter is in matched and connected with the inside of the forced air valve, and the end with a small hole diameter is in matched and connected with the inside of the first end of the three-way pipe, which is in the horizontal direction. By using the mechanical explosive-filling device and method for filling explosive by using the device disclosed by the invention, the problem that ANFO (ammonium nitrate / fuel oil) explosive is filled difficultly can be solved, and labor cost for explosive filling and the number of drilled holes are lowered; moreover, the explosive-filling device is simple and is convenient to install.

Description

technical field [0001] The present invention relates to a mechanized charge device, more specifically, a mechanized charge device for ammonium oil explosives (ANFO explosives), and a charge method using the device. Background technique [0002] The first phase of Tehran Northern Expressway Project, undertaken by China Shanghai Foreign Economic Group Co., Ltd., has a total length of 32 kilometers, including 28 tunnels, with a cumulative length of 22.6 kilometers. The volume of tunnel excavation is 2.4028 million cubic meters, and the consumption of explosives is about 2.6431 million kilograms. The tunnel construction adopts the traditional drill and blast method. The boreholes for tunnel excavation and blasting are generally horizontal or nearly horizontal boreholes inclined in all directions. Therefore, emulsion explosive rolls and manual charge are commonly used for tunnel blasting. However, we often use ANFO explosives in roadbed blasting, the full name is Ammonium Nitra...

AI Technical Summary

Problems solved by technology

ANFO explosives are fine-grained explosives, generally packaged in bags, so they are suitable for vertical or large-inclination drilling charges, so that fine-grained explosives can be poured directly into the drilled blasthole, while for horizontal holes Inability to rapidly compact charge

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