Industrial scale removal method

A scale and industrial technology, applied in the field of scale removal, can solve the problems of high value, high price, and many ingredients, and achieve good effect and accelerate the effect of scale removal

Active Publication Date: 2012-07-18
如皋市五山漂染有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The frequency of use of boilers and other industrial appliances is very high, and it is difficult to avoid scale or other deposits on these appliances. Once scale and other deposits are generated, it is difficult to clean them with clean water. The descaling agent bought has many ingredients and is expensive, and there is a certain lack of descaling effect. If it is edible grade, that is, the descaling agent that is not harmful to the human body, its value is more expensive, and the amount used in industry is low. It is very large, so the cost of descaling is very high; in addition, even if the descaling effect is achieved, a large amount of new scale will be generated after a short time, which will cause environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] For a boiler with a dirt thickness of about 2.1mm and a capacity of 3 tons, the following industrial descaling method is used. The specific steps are as follows:

[0020] 1) Prepare 200L of sodium bicarbonate solution with a concentration of 52.0%;

[0021] 2) Pour the above-mentioned sodium bicarbonate solution with a concentration of 52.0% into the appliance to be descaled. The capacity of the appliance to be descaled is 3 tons. Fill up with water, stir for 1.5min, heat to 84°C for the first time, and maintain the temperature range up to 8 minutes;

[0022] 3) After draining the solution in the descaling appliance, wash it with clean water, and the descaling appliance is as clean as new;

[0023] 4) Add anti-scaling water with a concentration of 0.1% into the appliance to be descaled. The anti-scaling water is prepared with industrial coarse starch, heated to 63°C, and maintained at this temperature range for 19 minutes;

[0024] 5) Wash the appliance to be descaled...

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Abstract

The invention relates to an industrial scale removal method, which comprises the following steps of: preparing 12.0 to 60.0 percent sodium hydrogen carbonate solution, wherein the volume of the sodium hydrogen carbonate solution is equal to 5.0 to 10.0 percent of the volume of a scale removed container; pouring the 12.0 to 60.0 percent sodium hydrogen carbonate solution into the scale removed utensil, fully filling the container with water, stirring the solution for at least 1 minute, heating the solution to the temperature of between 78 and 90 DEG C for the first time, and maintaining the temperature range for over 5 minutes; discharging the solution in the scale removed utensil, and cleaning the container by using clean water; adding anti-scale water into the scale removed utensil, heating the solution to the temperature of between 60 and 85 DEG C for the second time, and maintaining the temperature range for over 10 minutes; and cleaning the scale removed utensil by using the cleanwater. The raw materials are simple, the price is low, the scale removal effect is good, the speed of generating new scales is greatly retarded, and the method is safe and practical.

Description

technical field [0001] The invention relates to a method for removing scale, in particular to an industrial method for removing scale. Background technique [0002] The frequency of use of boilers and other industrial appliances is very high, and it is difficult to avoid scale or other deposits on these appliances. Once scale and other deposits are generated, it is difficult to clean them with clean water. The descaling agent bought has many ingredients and is expensive, and there is a certain lack of descaling effect. If it is edible grade, that is, the descaling agent that is not harmful to the human body, its value is more expensive, and the amount used in industry is low. It is very large, so the cost of descaling is very high; in addition, even if the effect of descaling is achieved, a large amount of new scale will be generated after a short time, which will cause environmental pollution at the same time. Contents of the invention [0003] In order to overcome the d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/08
Inventor 余媛媛叶大锦
Owner 如皋市五山漂染有限责任公司
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