A coal mine wet spraying system and wet spraying method with high strength and low energy consumption

A low-energy, high-strength technology, applied in chemical instruments and methods, injection devices, mining equipment, etc., can solve the problems of large dust in the working environment, low initial strength of concrete, and large rebound rate, etc., to achieve fast injection speed, The effect of excellent raw material quality and high early strength

Inactive Publication Date: 2016-01-20
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problems of low initial strength, high rebound rate, and large dust in the working environment of the existing wet spraying process, and provide a coal mine for concrete spraying with high strength and low energy consumption. Wet spray system and wet spray method

Method used

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  • A coal mine wet spraying system and wet spraying method with high strength and low energy consumption
  • A coal mine wet spraying system and wet spraying method with high strength and low energy consumption
  • A coal mine wet spraying system and wet spraying method with high strength and low energy consumption

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Effect test

Embodiment 1

[0040] like figure 1 As shown, a coal mine wet spraying system with high strength and low energy consumption includes a batching machine 1, a mixer 2, a spiral quantitative water distribution vehicle 3 and a wet spraying machine arranged in sequence, and the mixer 2 is set on the batching machine Downstream of 1, the spiral quantitative water distribution vehicle 3 is set at the outlet end of the mixer 2, and the wet spray machine is set at the discharge port end of the spiral quantitative water distribution vehicle 3.

Embodiment 2

[0042] like figure 1 As shown, a coal mine wet spraying system with high strength and low energy consumption includes a batching machine 1, a mixer 2, a spiral quantitative water distribution vehicle 3 and a wet spraying machine arranged in sequence, and the mixer 2 is set on the batching machine Downstream of 1, the spiral quantitative water distribution vehicle 3 is set at the outlet end of the mixer 2, and the wet spray machine is set at the discharge port end of the spiral quantitative water distribution vehicle 3.

[0043] The batching machine 1 is arranged on the ground, and the mixer 2, the screw type quantitative water distribution vehicle 3 and the wet spraying machine are arranged in the underground, and the discharge port of the batching machine 1 passes through the feeding device and the mixer 2. The mouth end is connected; the batching machine 1 includes a filter device and a weighing device, the transport device is a mine transport vehicle including a closed tran...

Embodiment 3

[0053] A method of wet spraying carried out by using the high-strength and low-energy coal mine wet spraying system of the present invention, comprising the steps of:

[0054] Step 1. Put the raw material in the batching machine 1, the weighing device in the batching machine 1 accurately weighs each component of the raw material, and the filter device filters the tailings to make the particle size less than or equal to 10mm, and stir Mix evenly to obtain mixed dry material I; the raw material is composed of the following materials in weight percentage: 63% of ordinary cement clinker; 28% of tailings; 2.6% of gypsum; 0.45% of Glauber's salt; Sodium 1.5%, formaldehyde 1.8%;

[0055]Step 2, put the mixed dry material I into a closed transport box, transport it to the underground by a mine transport vehicle, unload the mixed dry material I into the mixer 2, add the mixed dry material I quality 2% high-efficiency water reducer, fully mixed and stirred to obtain mixed dry material ...

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Abstract

The invention discloses a high-strength and low-energy-consumption coal mine wet spraying system. The wet spraying system comprises a batching machine (1), a blender (2), a spiral quantitative water distribution and transport vehicle (3) and a wet spraying machine which are arranged sequentially, wherein the blender (2) is arranged on the downstream of the batching machine (1); the spiral quantitative water distribution and transport vehicle (3) is arranged at a discharge port of the blender (2); and the wet spraying machine is arranged at a discharge port of the spiral quantitative water distribution and transport vehicle (3). According to the high-strength and low-energy-consumption coal mine wet spraying system, mechanized quantitative control of water, cement, sand, stone and various additives is realized, the working strength of a worker is reduced, and the stability of concrete performance is guaranteed.

Description

technical field [0001] The invention relates to a mine appliance, in particular to a high-strength and low-energy coal mine wet spraying system and wet spraying method for concrete spraying. Background technique [0002] The traditional wet shotcrete machine uses compressed air to mix the concrete material according to a certain level of water-cement ratio, and sprays it out at a high speed through the delivery pipe through the nozzle of the sprayer, thereby forming concrete support on the sprayed surface. The protective layer is the main equipment in the shotcrete construction work at present. As the terminal output equipment of concrete, the sprayed concrete sprinkler must have the basic characteristics of anti-virus, leak-proof, high-pressure and corrosion-resistant sprayed concrete. However, most of the sprinklers on the market are slender tubes, and the mixing of concrete and accelerator is not thorough, and The divergence surface of the sprayed material is too small, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10B28C7/04B05B1/14B05B1/30
Inventor 冯飞胜成云海曹光泽汪颖朱萌萌孙振平
Owner ANHUI UNIV OF SCI & TECH
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