Large-scale chemical equipment and manufacture technology of lining anti-corrosion board of large-scale chemical equipment

Abstract

The invention relates to large-scale chemical equipment and a manufacture technology of a lining anti-corrosion board of the large-scale chemical equipment. The manufacture technology comprises the following steps of: (1) carrying out sand-blast cleaning on an inner wall; (2) carrying out roll painting; (3) setting out a flitch, gluing a pressed vacuum rope at the inner wall of the equipment in the process of vacuumizing, and gluing a board; (4) welding; (5) detecting; and (6) reinforcing and shaping by steam. The equipment comprises a tank body, wherein the outer surface of the tank body is provided with a plurality of vacuum mouths, the inner wall of the tank body is provided with the anti-corrosion board connected with by binder, the vacuum rope is arranged between the board and the inner wall of the tank body, and wrinkles which run along with the vacuum rope are formed on the surface of the board. According to the invention, the vacuum rope is glued at the inner wall of the equipment, so that the vacuum gluing strength can be preferably enhanced, and the expansion or the contraction of the board lining can be carried out along with the wrinkles formed on the surface; the technical difficulty that the lining anti-corrosion material of the large-scale chemical equipment is easy to fall off can be solved, and the technology is more energy-saving, environments-friendly, low in energy consumption, and low in cost; and various anti-corrosion equipment machined and manufactured by the technology is high in lining strength, corrosion resistant, and long in service life.

Description

technical field [0001] The invention relates to chemical equipment, in particular to a large-scale chemical equipment with an inner anti-corrosion plate, and a manufacturing and installation process for installing an anti-corrosion plate lining on the inner wall of the equipment. Background technique [0002] Most of chemical equipment and containers used to store chemical materials need to have anti-corrosion function. At present, for chemical equipment or containers with a diameter of less than 3 meters, the manufacturing process of lining with fluorine is usually adopted, that is, polytetrafluoroethylene (PTFE) material is selected as the lining anti-corrosion material of equipment and containers, and the lining method is hot roller coating. Molding and thermal sintering molding and other methods. However, due to the limited processing capacity of hot roller coating and hot sintering equipment, these methods cannot be used to line large chemical equipment, storage contai...

AI Technical Summary

Problems solved by technology

However, due to the limited processing capacity of hot roller coating and hot sintering equipment, the above-mentioned methods cannot be used to line large chemical equipment, storage containers, chemical pipelines, etc., and cannot achieve anti-corrosion functions.

On the other hand, due to the difference in expansion coefficient between the shell and lining anti-corrosion materials of large-scale chemical equipment, the shell and lining materials will be detached after long-term use

Moreover, the traditional thermal roller coating and thermal sintering construction equipment have high energy consumption, high pollution and high cost, which cannot meet the current requirements for energy saving, emission reduction and environmental protection.

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