Sand layer laying device for producing fiber reinforced plastic composite pipe lining

Abstract

The invention provides a sand layer laying device for producing a fiber reinforced plastic composite pipe lining. The sand layer laying device comprises a fiber reinforced plastic lining rotating mechanism and a sand belt forming mechanism, wherein the sand belt forming mechanism and the fiber reinforced plastic lining rotating mechanism are arranged in parallel; the sand belt forming mechanism comprises a bearing platform, a sand hopper, a sand belt laying assembly and a sand belt spacing forming assembly, the sand hopper is fixedly installed on the bearing platform and forms a device space together with the bearing platform, and a sand outlet is formed in the bottom of the sand hopper; the sand belt laying assembly is installed on the bearing platform and is located below the sand outlet; and the sand belt spacing forming assembly is located at the bottom of the bearing platform and is in sliding connection with the bearing platform. The bearing platform is in sliding connection to the sand belt spacing forming assembly, so that the horizontal movement of the sand belt laying assembly is realized, and sand belts which are arranged at intervals are formed on a to-be-sanded fiber reinforced plastic lining.

Description

technical field [0001] The invention belongs to the technical field of production and manufacture of reinforced concrete fiberglass composite pipes, and in particular relates to a sand layer laying device for producing the inner lining of fiberglass composite pipes. Background technique [0002] Urban water supply and drainage systems now mostly use reinforced concrete fiberglass composite pipes. The structure is that reinforced concrete pipes are set on the outside of glass steel pipes. It has the advantages of high strength, strong corrosion resistance, small friction coefficient of the inner wall, and long service life. The combination of reinforced concrete pipes and glass steel pipes has various forms. In the prior art, sand layers are often used to increase the friction coefficient between the two to prevent the pipe from falling off. However, the sand laying work often needs to be laid after the glass steel pipe is formed but before it is effectively condensed, and th...

AI Technical Summary

Problems solved by technology

However, the sand laying work often needs to be laid after the glass steel pipe is formed but before it is effectively condensed, and the laying is difficult

However, the existing sand adding method can evenly lay sand and gravel on the outer wall of the glass steel pipe, but it is difficult to lay spaced sand belts, adjust the distance between the sand belts, and achieve uniform thickness of the sand belts.

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