Plastic panel, concrete pipe coating plastic panel and plastic panel processing device

Abstract

The invention relates to a plastic board for covering the inner wall of a concrete pipe, the concrete pipe that covers the plastic board and a device for processing the plastic board. The plastic board comprises a substrate and a plurality of fixing claws which are arranged on the surface of one side of the substrate. The width of the root of the fixing claws is less than that of the ends. The processing device comprises a plastic board forming device which comprises a forming roller, a compression roller, at least two pairs of annular molds, at least two stripping knives and a transport roller. The concrete pipe that is covered by the plastic board has stronger permeation resistance ability, longer service life and lower manufacturing cost. The processing device can extrude the plastics by an extruder between the forming roller and the compression roller, and the fixing claws of the board are extruded by the annular molds, and the fixing claws can separate from annular molds when the stripping knives separate the annular molds, and therefore, the processing of the plastic board is easier and the processing efficiency is higher.

Description

technical field [0001] The invention relates to a plastic plate for covering the inner wall of a concrete pipeline, a concrete pipeline covered with the plastic plate and plastic plate processing equipment. Background technique [0002] At present, the pipes used for water transportation, sewage discharge, etc. currently use plastic pipes or cast iron pipes or spiral iron pipes. Plastic pipes are not suitable for manufacturing large-diameter pipes due to their strength, while cast iron pipes and spiral iron pipes are It is relatively easy to rust, has a short service life, and the cost of both is relatively high. Therefore, concrete pipes are now mostly used as conveying pipes to solve problems such as low strength, high cost, and corrosion resistance. However, the concrete pipeline also has the following defects: the anti-penetration ability is poor, the loss of the transported material is relatively large during the transportation, especially in the long-distance transpor...

AI Technical Summary

Problems solved by technology

[0002] At present, the pipes used for water transportation, sewage discharge, etc. currently use plastic pipes or cast iron pipes or spiral iron pipes. Plastic pipes are not suitable for manufacturing large-diameter pipes due to their strength, while cast iron pipes and spiral iron pipes are It is relatively easy to rust, has a short service life, and the cost of both is relatively high

Therefore, concrete pipes are now mostly used as conveying pipes to solve problems such as low strength, high cost, and corrosion resistance.

However, the concrete pipeline also has the following defects: the anti-penetration ability is poor, the loss of the transported material is relatively large during the transportation, especially in the long-distance transportation process, and there is also a certain corrosion on the steel skeleton in it, causing cement in the sewage discharge. Corrosion and slump

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