Push chain type concrete spraying machine with distributor

Abstract

Provided in the invention is a push chain type concrete spraying machine with a distributor. The spraying machine comprises a chain type piston, an injection cylinder, a high-pressure pipe, a mixing chamber, and a spraying elbow. The mixing chamber is arranged in the middle of the injection cylinder; and the chain type piston penetrates the injection cylinder. The machine is characterized in that a distributor is arranged above the mixing chamber; the high-pressure pipe is connected to the top of the distributor; the spraying elbow is linked below the mixing chamber; air injection holes are formed in the middle of the distributor and the lower ends of the air injection holes are opposite to the upper space of the chain type piston in the mixing chamber, so that attachments of the chain type piston can be cleaned. The distributor is arranged on the mixing chamber; the high-pressure pipe is arranged on the distributor; the chain type piston passes through the injection cylinder; and compresses air is processed by flow acceleration of the distributor and thus the concrete is blown to the spraying elbow. Compared with the prior art, the spraying machine has the following beneficial effects: with the reducing injection pipe type distributor, the outlet injection speed of the compressed air is improve, thereby enhancing the injection capability; a problem that hanging materials can not be blown completely by the chain type piston can be solved; and the machine has the great popularization value.

Description

technical field [0001] The invention relates to engineering machinery equipment, in particular to a push-chain type concrete sprayer with an air distribution seat which integrates conveying, pouring and tamping into one process. Background technique [0002] The push chain concrete sprayer with air distribution seat has a wide range of applications, and its application range is as follows: [0003] 1. Underground engineering: mine shafts, traffic tunnels, water conservancy culverts and various chambers; [0004] 2. Thin-walled structural engineering: thin-shell roofs, building construction, storage warehouses, etc.; [0005] 3. Repair and reinforcement works: reinforcement and repair of bridges, highway slope protection, seawalls and dams; [0006] 4. Refractory and protective engineering: construction and repair of thermal furnaces. [0007] At present, a large number of rotor-type concrete sprayers in use in China have been banned in mines due to reasons such as low ser...

AI Technical Summary

Problems solved by technology

[0008] 1) Existing technology: the air distribution injection hole is drilled on the cylinder body, and the sharp-edged inlet cylindrical through hole has a large local resistance coefficient and no energy conversion function, resulting in poor injection effect, and the concrete on the chain piston is not easy to clean. Suspension;

[0009] 2) Existing technology: the air distribution injection holes are drilled on carbon steel pipes, and the injection holes are easily rusted, which reduces the injection efficiency;

[0010] 3) Existing technology: the air distribution injection holes are drilled on seamless steel pipes, each drills more than 30 holes, the labor intensity is high, and the manufacturing cost is high

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