Sealed wet spraying machine

Abstract

The invention discloses a sealed wet spraying machine. The sealed wet spraying machine comprises a cylinder body, a material bin hopper, spraying material bins and a driving mechanism, wherein each spraying material bin is provided with a gas inlet and a spraying material outlet; a piston rod extending into the cylinder body is connected to the driving mechanism; material pushing assemblies and anintermediate sleeve are installed on the piston rod; aggregates entering the cylinder body through the material bin hopper can enter one side of the cylinder body at intervals through the intermediate sleeve; and the piston rod can move linearly in the cylinder body under the drive of the driving mechanism, so that the aggregates enter one of the spraying material bins through the material pushing assemblies. The sealed wet spraying machine has the advantages that compressed air in the spraying material bins is kept sealed with a concrete hopper, simultaneous feeding and spraying operations are realized, the working efficiency and the uniformity of concrete mixing are greatly improved, the structure design is skillful the occupied space is small, the maintenance and operation are convenient, the construction level and quality of support are greatly improved, the safety production level is greatly improved, and the construction site environment is greatly improved.

Description

technical field [0001] The invention relates to a wet spraying machine, in particular to a sealed (concrete) wet spraying machine. Background technique [0002] At present, there are mainly two types of concrete spraying machines at home and abroad: dry spraying and wet spraying. With the enhancement of people's awareness of environmental protection and the improvement of the quality requirements for sprayed concrete, the construction of dry concrete spraying machines has been banned by most countries. It has been basically eliminated, so the application of concrete wet spraying machine has been further promoted and improved, and various concrete wet spraying machines have been operated, many of which are based on the original dry spraying machine, adding pressurized water to the spraying pipe , making it a wet spraying machine, among which there are double-tank concrete spraying machines, rotor concrete spraying machines, spiral concrete spraying machines, etc. The problem...

AI Technical Summary

Problems solved by technology

The problems existing in these conventional jetting machines include poor concrete mixing effect, out of control of water-cement ratio, poor hydration degree and adhesion of concrete sprayed on the working surface, high dust concentration, and the concrete is powered by motor during the conveying process. Wait

[0003] Later, a representative push-chain concrete wet sprayer and hydraulic piston concrete wet sprayer were introduced on the market. They were improved wet sprayers on the concrete delivery pump system. Concrete, however, because the whole machine is composed of multiple systems, the structure is complex, maintenance is difficult, operation does not change, the volume is larger, etc.

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