Environment-friendly and pollution-free inner surface and outer surface plastic-coating production line for steel pipe
A pollution-free, production line technology, applied in the direction of spraying devices, spray booths, etc., can solve the problems of workers and environmental damage, toxic smoke, excessive smoke, etc., achieve a clean and tidy environment, save raw materials, and improve the production environment.
Pending Publication Date: 2018-05-29
天津昕田管道科技有限公司
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Problems solved by technology
[0007] The above-mentioned external coating equipment is open, and the powder heated instantly after the preheated steel pipe contacts with the powder will produce a lot of smoke, which is toxic and will cause damage to workers and the environment
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[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot sequentially limit the protection scope of the present invention.
[0025] An environmentally friendly and pollution-free steel pipe internal and external plastic coating production line, including a preheating furnace 3-1, an internal spraying system, an internal coating curing furnace 3-2, an external plastic powder coating system, and an external coating curing furnace 3-3, both inside and outside The sanded steel pipe is transported to the preheating furnace, and after preheating, it is transported to the internal spraying system for spraying the inner surface of the steel pipe, and then transported to the inner coating curing furnace for high temperature curing, and then transported to the steel pipe external plastic powder coating system for steel pi...
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The invention relates to an environment-friendly and pollution-free inner surface and outer surface plastic-coating production line for a steel pipe. The environment-friendly and pollution-free innersurface and outer surface plastic-coating production line for the steel pipe comprises a preheating furnace, an inner spraying system, an inner coating curing furnace, an outer plastic powder sprayingsystem and an outer coating curing furnace; the steel pipe with the inner surface and the outer surface subjected to sand blasting is conveyed to the preheating furnace to be preheated and then conveyed to the inner spraying system, and the inner surface of the steel pipe is sprayed; then the steel pipe is conveyed to the inner coating curing furnace to be cured at the high temperature and then conveyed to the steel pipe outer plastic powder spraying system, and the outer surface of the steel pipe is sprayed; and then the steel pipe is conveyed to the outer coating curing furnace to be subjected to outer surface curing. According to the environment-friendly and pollution-free inner surface and outer surface plastic-coating production line for the steel pipe, smoke generated when powder makes contact with the hot steel pipe is sucked away together because of the negative pressure, so that the whole production operation environment is free of waste gas and waste smoke, a whole workshopis odorless, and the production environment is effectively improved.
Description
technical field [0001] The invention belongs to the field of plastic coating of steel pipes, in particular to an environment-friendly and pollution-free plastic coating production line for inside and outside of steel pipes. Background technique [0002] At present, plastic-coated steel pipe is a new type of high-efficiency anti-corrosion steel, which has excellent anti-corrosion performance, high compressive strength, long service life, smooth inner surface, good liquid flow performance, etc., making it quickly recognized by the market. Plastic-coated steel pipes are formed by melting a layer of polyethylene resin, ethylene-acrylic acid copolymer, epoxy powder, non-toxic polypropylene or non-toxic polyvinyl chloride and other organic substances with a thickness of 0.5-1.0mm on the inner or outer wall of the steel pipe. The composite pipe makes it have the advantages of high strength, easy connection, water impact resistance and so on. [0003] The existing steel pipe outer ...
Claims
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Login to View More IPC IPC(8): B05B16/20B05B16/40B05B14/48
Inventor 李文志李柏玉李文庆
Owner 天津昕田管道科技有限公司