Continuous collinear spray-coating winding prefabricated directly-buried thermal insulation pipe production line and applications thereof

Abstract

The invention provides a continuous collinear spray-coating winding prefabricated directly-buried thermal insulation pipe production line and applications thereof. The continuous collinear spray-coating winding prefabricated directly-buried thermal insulation pipe production line comprises a pipe feeding platform 1, a rust removing shot blasting part, a pipe feeding platform 2, a polyurethane spraying part, a polyethylene winding part, a spray cooling part, a cutting part and a finished product storage part, wherein the output end of the pipe feeding platform 1 is connected to the input end ofthe rust removing shot blasting part, the output end of the rust removing shot blasting part is connected to the input end of the pipe feeding platform 2, the output end of the pipe feeding platform2 is connected to the input end of the polyurethane spraying part, the polyurethane spraying part, the polyethylene winding part and the spray cooling part are sequentially adjacent and are collinearly arranged, and the cutting part is arranged between the output end of the spray cooling part and the input end of the finished product storage part. According to the present invention, by using the production line, the production process can be effectively simplified, the energy consumption can be reduced, the production efficiency can be increased by twice, and the labor intensity can be saved;and the continuous collinear spray-coating winding prefabricated directly-buried thermal insulation pipe production line can be used for the production processing of various types of directly-buried thermal insulation pipes so as to meet the requirements of different users.

Description

technical field [0001] The invention relates to the technical field of insulation pipe production equipment, in particular to a continuous collinear spraying and winding prefabricated direct-buried insulation pipe production line and its application. Background technique [0002] Insulation pipe is the abbreviation of heat insulation pipe, which is often used in the transportation of liquid, gas and other media, as well as in the heat insulation projects of petroleum, chemical industry, aerospace, military, central heating, central air conditioning, municipal and other pipelines. Insulation pipes include steel-steel composite insulation pipes and polyurethane insulation pipes. Among them, polyurethane insulation pipes are composed of working steel pipes, polyurethane insulation layers and high-density polyethylene protective layers from the inside to the outside. The surface of the working steel pipes is derusted by shot blasting. After the process treatment, the high-pressu...

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Problems solved by technology

[0003] 1. At present, in order to ensure the production efficiency of polyurethane insulation pipes, the integrated insulation pipe production line consisting of pipe rust removal, polyurethane spraying, polyethylene winding and cutting and other processes is gradually popularized. However, most of the existing production lines are completed by polyurethane spraying Afterwards, the pipeline transfer equipment after spraying is installed to carry out subsequent processes such as polyethylene winding, which not only makes the production process complicated and requires more labor, but also increases the energy consumption of the entire production line.

[0004] 2. In the production process of polyurethane insulation pipes, a single polyurethane spraying equipment is often set up to realize the spraying of polyurethane insulation layers in the continuous production process. In order to ensure good spraying of polyurethane insulation layers with a set layer thickness on the outer wall surface of the pipe, and The spraying time required for a single polyurethane spraying equipment is longer, so this method reduces the production efficiency of the entire production line

[0005] 3. Although the existing polyurethane insulation pipe production line can process direct-buried insulation pipes of various calibers, it is difficult to meet the production of different types of direct-buried insulation pipes. In order to complete the processing needs, users often need to customize the corresponding production line To ensure production and processing, thereby increasing production costs

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