Stemming machine for seamlessly filling blast hole

Abstract

The invention provides a stemming machine for seamlessly filling a blast hole. The stemming machine comprises a box body with a feeding hopper, a spiral stirring blade, a screw pump, a motor, a lifting assembly, a stemming filling pipe, an electric push rod and a joint filling assembly. The lifting assembly is used for driving the stemming filling pipe to ascend and descend, and a stemming inlet and a stemming outlet are formed in the stemming filling pipe. The screw pump is connected with the stemming inlet through a hose, the stemming outlet corresponds to the blast hole, the electric push rod is arranged in the stemming filling pipe, the output end of the electric push rod faces the stemming outlet, and the joint filling assembly is arranged at the output end of the electric push rod and can conduct extruding and vibrating in multiple three-dimensional directions. When the stemming filling pipe is aligned to the blast hole for stemming filling, the electric push rod drives a hollow ball to extend into the blast hole filled with stemming, a vibrator vibrates to drive compaction plates on the periphery of the hollow ball surface to conduct extruding and vibrating outwards, so that the stemming in the blast hole slowly moves in multiple directions and enters gaps in all directions of the blast hole, the sealing performance of the blast hole is greatly improved, and blasting is more accurate.

Description

technical field [0001] The invention relates to the technical field of deep hole pre-splitting blasting in the rock layer of the roadway roof in mining, in particular to a blasting machine for seamlessly filling blastholes. Background technique [0002] In industries such as mining, railways, highways, tunnels, bridges, transportation, water conservancy projects, etc., the deep hole pre-splitting blasting technology of mining roadway roof strata requires a large amount of blasting mud for hole sealing, and the blasting mud used has been automated. However, when the blast hole is blocked, it needs to be manually blocked, and the labor intensity of the workers is high, and there are potential safety hazards (causing the explosion of the detonator of the explosive or destroying the detonator footline during the blocking process). At present, automatic filling machines are gradually used for filling. [0003] However, during the drilling process of the blasthole, cracks will app...

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