Digitalized two-step method filling operation assembly line for directly-buried polyurethane thermal insulation pipes

Abstract

The invention relates to the technical field of medical auxiliary devices, in particular to a digitalized two-step method filling operation assembly line for directly-buried polyurethane thermal insulation pipes. The digitalized two-step method filling operation assembly line comprises a steel pipe transmission unit, a rust and dust removal system, a medium frequency heating device, a pipe penetrating machine, a lifting moving V-shaped box, an upper blocking machine, a preheating device before foaming and a polyurethane foaming unit, wherein the steel pipe transmission unit, the rust and dust removal system, the medium frequency heating device, the pipe penetrating machine, the lifting moving V-shaped box, the upper blocking machine, the preheating device before foaming and the polyurethane foaming unit are connected in sequence. By means of the digitalized two-step method filling operation assembly line for the directly-buried polyurethane thermal insulation pipes, potential safety hazards in production are reduced; through a continuous operation mode, namely, after the pipes (including steel pipes and PE pipes) enter a production line, the bottoms of the pipes never leave the production line, and the pipes move from one position to a next position through a series of actions such as hydraulic transmission and chain transmission till finished pipes move out of the production line; a hoisting tool is used in none of the steps, so that hidden dangers are reduced.

Description

technical field [0001] The invention relates to the technical field of direct-buried thermal insulation pipe manufacturing, in particular to a digital two-step filling operation line for polyurethane direct-buried thermal insulation pipes. Background technique [0002] Prefabricated direct-buried thermal insulation pipes are mainly used for district heating external network pipelines. With the promotion of central heating in the country, its consumption is increasing and its application range is becoming wider and wider. Prefabricated directly buried thermal insulation pipeline has many advantages such as waterproof, good anti-corrosion performance, saving investment, shortening construction period, and low maintenance cost. [0003] The currently used prefabricated direct-buried pipes are composed of steel pipes, brackets, insulation layers, and outer protective pipes. According to the design and customer requirements, spiral welded seamless pipes and straight seam pipes ar...

AI Technical Summary

Problems solved by technology

[0005] 2. In the original production, the pipes (including steel pipes and PE pipes) cannot be placed in place in time and accurately by using gantry cranes or cranes in the workshop, resulting in a waste of time

And because of the safety hazards that may be brought about by the crane operation, such as broken wire ropes, bumps and injuries to workers' heads, smashed equipment, etc.

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