A cleaning method for sugar evaporation tank

A technology for evaporating tanks and sugar, which is applied in the cleaning field of sugar evaporating tanks, and can solve the problems of chemical cleaning agents polluting the environment, evaporating tank cleaning equipment, complex methods, and high cleaning costs

Inactive Publication Date: 2018-04-10
GUANGXI NONGKEN SUGAR IND GRP XIJIANG SUGAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the present invention provides a method for cleaning the evaporation tank through continuous testing in the cleaning and descaling process of the evaporation tank, aiming at solving the problem of complicated cleaning equipment and methods for the evaporation tank, high cleaning costs, and environmental pollution caused by chemical cleaning agents. question

Method used

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  • A cleaning method for sugar evaporation tank
  • A cleaning method for sugar evaporation tank
  • A cleaning method for sugar evaporation tank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] After 5 days of use, the 1# evaporator tank was switched out for cleaning. During the cleaning and descaling process of the evaporator tank, each component of the figure 1 and figure 2 Processed and assembled, open the cold water valve (41), rinse the residual juice with clean water for 5 minutes, and open the sewage valve (81), the residual juice that is easier to clean is cleaned, then close the cold water valve (41), and then open Exhaust gas valve (51), let the exhaust gas dry for 7 hours, control the temperature in the evaporation tank at about 120°C, and open the cold water valve (41) to pour cold water for 3 minutes when the drying time is 1.5, 3, 4.5, and 6 hours respectively , clean up the stubborn residual juice on the wall of the evaporating tank until 7 hours later, close the waste gas valve (51), let the evaporating tank cool down to normal temperature naturally, make the scale easily fall off through thermal expansion and contraction, and use a 60MPa hig...

Embodiment 2

[0022] The 4# evaporating tank is used for 3 days and then the tank is switched out for general cleaning. During the cleaning and descaling process of the evaporating tank, each component of the evaporating tank is figure 1 and figure 2 Processed and assembled, open the cold water valve (41), rinse the residual juice with clean water for 8 minutes, and open the sewage valve (81), the residual juice that is easier to clean is cleaned, then close the cold water valve (41), and then open Exhaust gas valve (51), let the exhaust gas dry the tank for 7.5 hours, control the temperature at about 135 ° C, and open the cold water valve (41) to pour cold water for 1 minute when the drying tank is 1, 3, 4.5, 6, and 7.5 hours respectively, Clean up the stubborn residual juice on the wall of the evaporating tank. After 7.5 hours, close the waste gas valve (51), let the evaporating tank cool down to normal temperature naturally, and make the scale easily fall off through thermal expansion a...

Embodiment 3

[0024] The 5# evaporating tank is used for 3 days and then the tank is switched out for general cleaning. During the cleaning and descaling process of the evaporating tank, each component of the evaporating tank is figure 1 and figure 2 Processed and assembled, open the cold water valve (41), rinse the residual juice with clean water for 10 minutes, and open the sewage valve (81), the residual juice that is easier to clean is cleaned, then close the cold water valve (41), and then open Exhaust gas valve (51), let the exhaust gas dry the tank for 8 hours, control the temperature at about 150°C, and respectively open the cold water valve (41) and pour cold water for 5 minutes when the tank is dried for 2, 4, 6, and 8 hours to clean and evaporate For the stubborn residual juice on the tank wall, after 8 hours, close the waste gas valve (51), let the evaporation tank cool down to normal temperature naturally, and make the scale easily fall off through thermal expansion and contra...

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Abstract

The invention discloses a cleaning method for an evaporating tank for sugar. The cleaning method comprises the cleaning steps that firstly, a cold water valve (41) is switched on, clear water is used for washing juice remaining in the evaporating tank (1) in a spraying mode for 5-10 min, a sewage discharging valve (81) is switched on to discharge sewage, and the cold water valve (41) is switched off; secondly, waste gas is used for drying the tank, the cold water valve (41) is switched on for spraying water 3-5 min every 1.5-2 h in the tank drying process, and a waste gas valve (51) is switched off when the tank is dried for 7-8 h; thirdly, the tank is opened and cooled to the room temperature, and then a high-pressure cleaning machine (9) is used for washing a heating pipe; fourthly, the sewage discharging valve (81) is switched off after cleaning. The cleaning method is low in cleaning cost, the cleaning structure is simple, no chemical pollutants are discharged, the dirt removing effect is good, and the effects of energy conservation and environment protection are achieved by using the waste gas to dry the tank.

Description

technical field [0001] The invention belongs to a cleaning method of sugar cane sugar making equipment, in particular to a cleaning method of a sugar evaporation tank. Background technique [0002] The evaporating tank is the equipment used by the sugar factory to concentrate the clear juice into syrup, and it can be composed of several sets of multi-effect evaporating systems. The juice to be evaporated is evenly distributed to each heating tube in the heating chamber by the feeding device of the evaporation tank for heating, and then the juice vapor sprayed from the heating tube is separated from the juice vapor by the juice vapor chamber to release The sugar juice after the juice steam flows to the downcomer, and most of the sugar juice is discharged from the juice outlet pipe into the next evaporation tank. In actual production, due to the influence of the sugar production process in the sugar factory, after the heater has been used for a period of time, calcium sulfite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28G13/00
CPCF28G13/00
Inventor 甘耀明覃文秀吴飞
Owner GUANGXI NONGKEN SUGAR IND GRP XIJIANG SUGAR CO LTD
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