Wind driven automatic-proportioning concrete sprayer

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...

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 materials and affect the quality of roadway support.

Some of the above-mentioned equipment are assembled together to form a triple machine that integrates storage, mixing, and spraying, thereby improving the mechanization of the entire concrete spraying construction process. This triple machine is still complex in structure and bulky

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