Seamless steel pipe continuous pickling device and method

Abstract

The invention relates to a seamless steel pipe continuous pickling device. An immersing tank and a spray-washing tank are arranged in a pickling tank, a first guide groove and a second guide groove which are closed are oppositely formed on the inner walls of two sides of the pickling tank, a pickling tank is arranged between the first guide groove and the second guide groove and used for putting apipe blank in for pickling, the pipe blank is added into the pickling tank which is immersed in the immersing tank, pickling liquid is arranged inside the immersing tank, the pickling tank is drivento rotate itself and move along the first guide groove and the second guide groove through a driving component connected on one side of the pickling tank, and the pickling tank is driven by the driving component to enter the spray-washing tank; a water extraction component is arranged on one side of the immersing tank, a water outgoing end of the water extraction component is connected with a liquid outgoing pipe, one end of the liquid outgoing pipe is arranged above the spray-washing tan, an atomizing nozzle is connected on the liquid outgoing pipe, and the pickling liquid is sprayed onto thepipe blank through the atomizing nozzle to flush and continuously pickle the pipe blank. The seamless steel pipe continuous pickling device is good in pickling effect and high in efficiency.

Description

technical field [0001] The invention relates to a pickling device, in particular to a seamless steel pipe continuous pickling device and a pickling method thereof. Background technique [0002] At present, the world's seamless steel pipe production processes mainly include hot-rolled seamless steel pipe and cold-drawn seamless steel pipe. Hot-rolled seamless steel pipe has high production efficiency and low energy consumption, and is widely used, but its disadvantages are poor geometric accuracy and The production process of small-diameter seamless steel pipes by hot rolling process is complex and costly. Therefore, high-precision small-diameter seamless steel pipes generally adopt cold drawing process. To obtain seamless steel pipes with smaller sizes and better quality, cold rolling must be used. , cold drawing, or a combination of the two methods, that is, first heat and perforate one end of the seamless steel pipe round tube blank, and then send the tube blank obtained a...

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Problems solved by technology

[0002] At present, the world's seamless steel pipe production processes mainly include hot-rolled seamless steel pipe and cold-drawn seamless steel pipe. Hot-rolled seamless steel pipe has high production efficiency and low energy consumption, and is widely used, but its disadvantages are poor geometric accuracy and The production process of small-diameter seamless steel pipes by hot rolling process is complex and costly. Therefore, high-precision small-diameter seamless steel pipes generally adopt cold drawing process. To obtain seamless steel pipes with smaller sizes and better quality, cold rolling must be used. , cold drawing, or a combination of the two methods, that is, first heat and perforate one end of the seamless steel pipe round tube blank, and then send the tube blank obtained after the heating and perforation treatment to the reducing device for head reduction, and then proceed to the next step. Annealing and pickling, oiling the surface and then cold drawing for many times, and finally straightening the tube embryo after heat treatment, after the quality inspection, the finished seamless steel pipe can be obtained, and the seamless steel pipe embryo is pickled It is an indispensable processing technology. The existing pickling process lifts the tube embryo by manually controlling the lifting machine, and then controls the lifting machine to put the tube embryo into the pickling pool with pickling liquid inside for pickling. , the number of embryos that can be controlled each time is small. Once too many embryos are lifted at one time, it is difficult to control the lifting machinery, and the embryos are simply added to the pickling pool, and the pickling solution will form a gap on the surface of the embryos. The pickling layer affects the pickling film, and the pickling effect is poor. This pickling process has the problems of poor pickling effect and low pickling efficiency. Because the lifting machinery is difficult to control, the operator still needs to stay in the pickling machine all the time. The chemical properties of the pickling solution will have a serious impact on the health of the operator, and safety accidents are prone to occur during the process of lifting the tube embryo

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