Heating apparatus for pickling tank

Abstract

A heating apparatus for a pickling tank comprises a heating box, acid-proof heating pipes and a PLC controller; the heating box is provided with a water inlet and a water outlet, and the water outlet is disposed below the water inlet; the water inelt is connected with a water pump; the water outlet is provided with a water outlet pipe; the top of the heating box is provided with a plurality of installation holes; the acid-proof heating pipes are fixedly disposed on the installation holes in an insertion manner and is vertically arranged in the heating box; each acid-proof heating pipe comprises a pipe body prepared from polytetrafluoroethylene material, and the pipe body is inside provided with a drawing-out rod and a resistance wire; a liquid-level sensor and a temperature sensor are arranged on the heating box; the liquid-level sensor is arranged at a same horizontal plane with the connection point of the drawing-out rod and the resistance wire; and the liquid-level sensor, the temperature sensor, the acid-proof heating pipes, the water pump and the PLC controller are in electrical connection. The heating apparatus is simple in structure and convenient to operate, helps to substantially improve the heating efficiency, enable a pickling solution to heated uniformly and increase the pickling effect.

Description

technical field [0001] The invention relates to a heating device, in particular to a heating device for a large pickling tank. Background technique [0002] The pickling tank is a container used to hold the aqueous solution and remove the metal surface film during the pickling process of the workpiece. It is suitable for the capacitor industry and is widely used in industrial pickling industries such as metallurgy and electroplating. It is mainly used for pickling on the surface of various copper and aluminum metals such as titanium-nickel alloy and stainless steel. It can remove oil, rust, scale, corrosion, and fog, and promote the removal of stubborn scale, especially for hot rolling. , annealing, tempering process generated high temperature difficult to remove scale, greatly shorten the cleaning time, while preventing the generation of hydrogen embrittlement; suppress the generation of smoke, greatly improve the production environment; greatly reduce the corrosion rate of...

AI Technical Summary

Problems solved by technology

[0003] The pickling tank needs to be heated during the working process to keep the temperature constant within a certain range. The existing pickling tank heating devices are all built in the pickling tank. In large-scale The effect in the pickling tank is not good, and the temperature of the pickling solution is inconsistent due to uneven heating, which ultimately affects the pickling effect

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