Device and method for accurately sampling plating solution in plating pot in hot plating production line

Abstract

The invention relates to a device and a method for accurately sampling plating solution in a plating pot in a hot plating production line. The device comprises a frame (6) positioned on the plating pot (18), wherein one end of the frame (6) is provided with a No.1 asynchronous motor (5); the No.1 asynchronous motor (5) drives a No.1 sliding block (11) to drive a No.2 sliding block (12) to do reciprocating motion on a track (7) by driving a screw rod (8) to rotate; a No.2 asynchronous motor (14) drives a sampler (9) and a sealer (10) to descend to or ascend from the plating solution (19) through a driver (13); the sealer (10) opens or closes a spoon gate (9.1) of the sampler (9) under the drive of a cylinder (16); and the No.1 asynchronous motor (5), the No.2 asynchronous motor (14), an air compressor system (2) and an electromagnetic valve (4) are connected with an electronic control system. The device can accurately samples the plating solution at each point in the plating pot, avoids manual sampling errors and ensures sampling integrity, consistency and repeatability.

Description

technical field [0001] The invention relates to a liquid sampling device, in particular to a precise sampling device and method for plating solution in a hot-dip production line, and belongs to the technical field of sampling tools for measuring physical and chemical indicators of liquid. Background technique [0002] The modern continuous strip steel hot-dip production line is the infrastructure for cold-rolling plants to produce high-quality hot-dip plates for construction, home appliances, and automobiles. With the development of coating technology, the requirements for the surface quality of hot-dip sheets for construction, home appliances, and cars Also getting higher and higher. In order to obtain a high-quality hot-dip plate surface, the first premise is that the composition of the molten plating solution must be reasonably prepared, and the basis for rational preparation of the composition of the plating solution is an accurate analysis of the status quo of the plati...

AI Technical Summary

Problems solved by technology

[0004] At present, since the hot-dip plating production line in my country does not have accurate sampling devices and methods for the plating solution in the plating pot during the production process, there are certain blind spots in the research on the formation mechanism and structural characteristics of the alloy slag in the plating pot. 2 Al 5 , FeZn 13 There are insufficient researches on the formation process, and it is difficult to accurately control the composition of the plating solution

At the same time, the plating solution at home and abroad generally adopts the method of manual sampling with the aid of a sampling spoon, which has two major problems. One is that the sampling depth of the plating solution cannot be determined, so it cannot accurately reflect the concentration of components in different areas of the plating pot; When the alloy slag is easily brought in, it affects the effective determination of the contents of various elements in the plating pot

Therefore, the existing method has disadvantages such as low sampling efficiency, high error, and poor safety of personnel operation, and it is difficult to carry out quantitative research on sampling data, which can only be used as a reference value

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