Wind driven automatic-proportioning concrete sprayer

A technology of concrete spraying machine and automatic proportioning, which is applied in earthwork drilling, wellbore lining, tunnel lining, etc. It can solve the problems of many supporting power equipment, high cost, waste of raw materials, etc., and achieve the improvement of support quality and work efficiency, The effect of preventing the imbalance of raw material ratio and improving the quality of support

Pending Publication Date: 2020-02-04
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual batching, electric or hydraulic equipment mixing and wind conveying equipment are required for transportation. There are many supporting power equipment, complex structure and high cost. The quality of concrete raw materials cannot be guaranteed due to artificial influence, which is easy to cause waste of raw material

Method used

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  • Wind driven automatic-proportioning concrete sprayer

Examples

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Embodiment Construction

[0019] Such as figure 1 Shown, a kind of concrete injection machine of automatic proportioning driven by wind power, it comprises walking frame 1 and is installed on the walking frame and is used for the horizontal pipe 2 of concrete material proportioning and conveying; The front end is provided with a tapered pipe 3, and the tail is provided with a pressure air pipe interface 4, and a proportional conveying device connected with it is arranged on the pipe body; the proportional conveying device is sequentially from the back to the front: the cement slurry proportional conveying device A, the stone proportional conveying device Conveying device C and sand ratio conveying device B; wherein the structure of grout ratio conveying device A is to include a cement slurry mixing bucket 5, the bottom of the cement slurry mixing bucket 5 communicates with the horizontal pipe 2, on the cement slurry mixing bucket 5 There is a circle of surrounding water pipes 6, and a plurality of wate...

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Abstract

The invention discloses a wind driven automatic-proportioning concrete sprayer which is characterized by comprising a walking rack and a horizontal pipe arranged on the walking rack and used for concrete material proportioning and conveying. A cement paste proportion conveying device, a stone proportion conveying device and a sand proportion conveying device are arranged on a pipe body of the horizontal pipe; and the cement paste proportion conveying device is characterized in that a circle of surrounding water pipe is arranged on a cement paste mixing barrel, and an accelerator proportion conveying device and a cement proportion conveying device are arranged. The wind driven automatic-proportioning concrete sprayer further comprises an integration proportion distribution valve. During spouting, a cement and an accelerator are sprayed with water in the cement paste mixing barrel and are then fully mixed with the water so as to form a cement paste conveyed to the horizontal pipe, the cement paste forwards flows at high speed under the compressed wind action so as to meet and be mixed with stone and sand, and a concrete is output with pressure through a taper pipe at the front end ofthe horizontal pipe.

Description

technical field [0001] The invention relates to a concrete spraying machine for mine roadway and traffic tunnel support. Background technique [0002] Concrete spraying machine refers to a kind of mechanical equipment that uses compressed air to form a suspended airflow of concrete in a certain proportion and spray it to the surface to be coated to form a dense concrete layer, so that the surface of the building can be reinforced or a new structure can be formed. . It is widely used in many countries in underground and ground concrete projects in construction, municipal, railway, mining and other industries, and shows good technical and economic benefits. According to the method of adding water to the concrete mixture, it can be divided into three types: dry type, wet type and semi-wet type in between. The wet type enters the spraying machine with water-added concrete mixture, so the dust content in the spraying is low, and the amount of rebound is also reduced, which is a...

Claims

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Application Information

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IPC IPC(8): E21D11/10
CPCE21D11/105
Inventor 徐瑞银
Owner SHANDONG UNIV OF SCI & TECH
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