Foam concrete wet-spraying unit used for mine

Abstract

The invention discloses a foam concrete wet-spraying unit used for a mine. The foam concrete wet-spraying unit comprises a shell, wherein the shell is provided with a feeding and stirring system, a foam making and mixing and controlling system and a transmission and injection system, wherein the feeding and stirring system comprises an upper stirrer and a lower stirrer; one end of the upper stirrer is connected with a feeding funnel, and the other end of the upper stirrer is connected with the lower stirrer; the foam making and mixing and controlling system comprises a hose pump, a foam maker and a foam mixer; the lower stirrer is connected with the hose pump; the hose pump is connected with the foam mixer; the foam maker is connected with a liquid foaming agent container and the foam mixer; the transmission and injection system comprises a hydraulic pump, an energy storage device and an accelerating agent feeding channel, wherein the hydraulic pump is respectively connected with a hydraulic motor I, a hydraulic motor II and a hydraulic motor III; the hydraulic motors I, II and II are respectively connected with pipelines among a slurry adsorption pipe, the foam maker and the foaming agent container and the accelerating agent feeding channel; and the energy storage device is connected with the foam maker, an inner air pipe of a mine roadway, the foam maker and a spray nozzle. The foam concrete wet-spraying unit has the advantages of continuous and even material feeding and the capability of avoiding dust pollution and pipe blockage of the spray nozzle.

Description

technical field [0001] The invention relates to a device for spraying concrete in a roadway, in particular to a mine-used foam concrete wet spraying unit. Background technique [0002] In recent decades, shotcrete technology has played an important role in the supporting lining of mine shafts and underground works, the reinforcement and reinforcement of building structures, the stability of rock and soil slopes, the construction of thin-walled structures with complex shapes and water-carrying and water-filling structures, and tunnels. The excavation and other projects have unique functions. [0003] The dry spraying method has always occupied a dominant position in the shaft construction, especially in the field of coal mines in my country. Due to the problems of low construction efficiency, high rebound rate, large dust, and unguaranteed spraying intensity in dry spraying technology, spraying can only be used as a weathering protection layer for rock formations, and cannot...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of discontinuous and uniform supply of cement slurry, pulse phenomenon, serious dust pollution, too fast solidification of slurry, and blockage of nozzles in the prior art wet spraying machine; it provides a wet spraying unit for mine-used foam concrete; It has the advantages of continuous and uniform cement slurry supply, reducing dust pollution, and avoiding nozzle blockage

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