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The steel pipeline transport is one of today's five major modes of transport, it has become the main means of transport of oil and gas. Casing and tubing collectively, the oil well pipe, casing steel pipe to support oil and gas well borehole wall, divided into the surface casing, casing and production casing; tubing lay the cementing of wells, the production casing set , oil and gas from this influx of specialized seamless pipes on the ground. Based on the shortcomings of poor corrosion resistance of steel pipelines, major domestic steel pipe plant in order to improve the service life of the steel pipe and meet their products meet export requirements, steel pipe factory before the last one process is its outer surface, anti-corrosion paint (mostly 6 # 10 # paint) and high pressure airless spray. Mechanical paint is an important and indispensable step in the mechanical production, it is both important method of corrosion protection products from, is also an important means of decorative landscaping products to enhance the appearance of the product. The paint equipment occupies an important position in the paint work, the paint equipment of good or bad, will directly affect the quality of the coating, the working conditions, the use of paint, energy saving and environmental protection. Automatic spraying of the steel pipe outer surface, the steel pipe before coating after coating vertical conveying motor, stepper, the transverse conveyor, and drying production line, it is possible to run continuously for a long time, a shorter tact save paint consumption, greater coverage, operating safe and reliable. Be developed pipe Oiler equipment is divided into two parts, main and auxiliary hosts include: paint additional storage and transportation, heating, insulation circulating its electricity with thermal insulation, mobile lifting spray tank and gun group, the paint recycling exhaust and waste gas treatment (except paint mist, adsorption, silencer and duct); auxiliary equipment including: vertical conveying of steel pipe from the rolling mill, stepping mechanism, horizontal conveying and drying, and finally discharge. The electronic control system uses PLC control. One of the necessary conditions for steel pipe exports to the the API certification through the American Petroleum Institute (API 5CT and API 5L), this study steel pipe the Oiler production line is the steel plant achieved the American Petroleum Institute (API) certification. The Oiler host using airless spray design, high-pressure airless spray forms spraying method is currently more advanced coating technology, it is the use of a special form of pneumatic, electric or other power-driven paint pump The coating increased to high pressure, through the narrow nozzles out, paint dramatic expansion of the coating to form ultrafine fan row mist, fog flow, high speed sprayed into the workpiece surface, thereby forming a coating method of the coating. Airless spray, due to the high pressure of the paint, and the paint is no air was able to overcome the lack of conventional air spray to improve spray quality, reduce costs, and reduce pollution, improve the labor environment.
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