Efficient clearing method for scale in evaporation tank

Abstract

The invention discloses an efficient clearing method for scale in an evaporation tank. The method comprises the following steps of (1) clearing residual juice, specifically, washing the residual juicein an evaporation tube for 3-5 minutes; (2) carrying out first-stage descaling, specifically, carrying out heating firstly by utilizing waste gas and a heating tube of the evaporation tank, then blowing cold air inside for cooling, and then enabling part of the scale to fall off by utilizing ultrasonic waves of an ultrasonic generator; (3) carrying out secondary descaling, specifically, carryingout soaking for 30-60 minutes after carrying out high-pressure washing by utilizing a dissolving agent, then carrying out high-pressure washing again for 15-30 min, and then discharging sewage; and (4) carrying out deep washing, specifically, carrying out high-pressure washing on the wall of the evaporation tank and the heating tube for 1-10 minutes by using clean water, and after discharging thecleaning sewage, introducing the waste gas for drying. The efficient cleaning method for the scale in the evaporation tank has the advantages of being simple, convenient and rapid to operate, environmentally friendly, energy-saving, good in cleaning effect and high in speed.

Description

technical field [0001] The invention relates to the technical field of cleaning equipment manufacturing and cleaning operation, in particular to an efficient cleaning method for fouling in an evaporation tank. Background technique [0002] The evaporating tank is the equipment used by the sugar factory to evaporate and concentrate the sugar juice into syrup. Generally, an evaporation system is composed of multiple evaporating tanks. The tube is heated, and then the juice vapor room separates the juice from the heating tube from the juice vapor, and the juice after the juice vapor is released flows to the downcomer, and most of the juice is discharged from the juice outlet pipe into the next evaporation Can. In the process of actual operation, due to the influence of the sugar making process, after the heater has been used for a period of time, scales with uneven thickness will be deposited on the inner wall of the heating tube, which will seriously affect the heat exchange ...

AI Technical Summary

Problems solved by technology

In the process of actual operation, due to the influence of the sugar making process, after the heater has been used for a period of time, scales with uneven thickness will be deposited on the inner wall of the heating tube, which will seriously affect the heat exchange efficiency, and it will often corrode the heating tube. tube, therefore, the heating tube needs to be cleaned

[0003] At present, one of the common cleaning methods for evaporating tanks is to use a high-pressure water gun to manually insert the gun head into the densely distributed heating tubes for cleaning. The operation is time-consuming and laborious. The method is easy to corrode the heating tube and is not environmentally friendly. In order to solve the problems existing in the fouling cleaning of the evaporation tank in the sugar factory in the past, the patent application number: 201420514417.5 discloses a telescopic folding evaporation tank tube heater automatic washing machine , although the automatic washing machine can also clean the mechanism on the heating tube, but the cleaning effect is poor and the speed is slow, so it is necessary to find an efficient cleaning method that is easy to operate

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