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Aluminium oxide settlement tank full-direction scab cleaning device and application method thereof

A technology for cleaning devices and settling tanks, applied in the direction of liquid cleaning methods, cleaning methods and utensils, chemical instruments and methods, etc., can solve problems such as high labor intensity, environmental pollution, and affecting the use efficiency of settling tanks, and achieve cleaning short cycle effect

Active Publication Date: 2018-10-19
江阴市华能电热器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. Manually remove the scars, the cleaning time is long, generally takes 50 to 70 days, which affects the efficiency of the settling tank
[0005] 2. People enter the tank and use mechanical equipment to crush the scars and clean them out. The vibration is large and the noise is large, which will damage the surface of the tank wall of the settling tank and affect the service life.
[0006] 3. After the scabs are cleared, they are piled outside the tank, and the dust will pollute the environment
[0007] 4. Manually remove scars, because there are many safety accidents, high labor intensity, and great harm to the body, no one is willing to do this type of work

Method used

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  • Aluminium oxide settlement tank full-direction scab cleaning device and application method thereof
  • Aluminium oxide settlement tank full-direction scab cleaning device and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Said control valve 5 sets the flow rate of lye 7 to 80m3 / h.

[0032] The method for using the all-round scab cleaning device for the alumina settling tank specifically includes the following steps:

[0033] Step 1, the lye 7 with a concentration of 10g / L is produced by proportioning the thickness of the scab;

[0034] Step 2, open the circulating pump 1 and the control valve 5, so that the lye 7 can circulate in the circulating header 2;

[0035] Step 3: When the temperature of the lye 7 is heated to 75°C by the heating device 4, open the control valve 5 arranged above the scab cleaner 6, so that the heated lye 7 is sprayed from the scab cleaner 6, and And the lower cleaning settling tank 9, the cleaning time is 72h;

[0036] Step 4. Then, when the temperature of the lye 7 is heated to 90° C., the cleaning time is 168 hours;

[0037] Step 5. Finally, when the temperature of the lye 7 is heated to 85° C., the cleaning time is 120 hours, so that the settling tank 9 is ...

Embodiment 2

[0039] Said control valve 5 sets the flow rate of lye 7 to 120m3 / h.

[0040] The method for using the all-round scab cleaning device for the alumina settling tank specifically includes the following steps:

[0041] Step 1, the lye 7 with a concentration of 30g / L is produced by proportioning the thickness of the scab;

[0042] Step 2, open the circulating pump 1 and the control valve 5, so that the lye 7 can circulate in the circulating header 2;

[0043] Step 3: When the temperature of the lye 7 is heated to 78°C by the heating device 4, open the control valve 5 arranged above the scab cleaner 6, so that the heated lye 7 is sprayed from the scab cleaner 6, and And the lower cleaning settling tank 9, the cleaning time is 72h;

[0044] Step 4. Then, when the temperature of the lye 7 is heated to 93° C., the cleaning time is 168 hours;

[0045] Step 5. Finally, when the temperature of the lye 7 is heated to 87° C., the cleaning time is 120 hours, so that the settling tank 9 is...

Embodiment 3

[0047] The flow rate of lye 7 is set to 160m3 / h by the control valve.

[0048] The method for using the all-round scab cleaning device for the alumina settling tank specifically includes the following steps:

[0049] Step 1, the lye 7 with a concentration of 50g / L is produced by proportioning the thickness of the scab;

[0050] Step 2, open the circulating pump 1 and the control valve 5, so that the lye 7 can circulate in the circulating header 2;

[0051] Step 3, when the temperature of the lye 7 is heated to 80°C by the heating device 4, the control valve 5 arranged above the scab cleaner 6 is opened, so that the heated lye 7 is ejected from the scab cleaner 6, and the And the lower cleaning settling tank 9, the cleaning time is 72h;

[0052] Step 4. Then, when the temperature of the lye 7 is heated to 95° C., the cleaning time is 168 hours;

[0053] Step 5. Finally, when the temperature of the lye 7 is heated to 90° C., the cleaning time is 120 hours, so that the settlin...

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Abstract

The invention relates to an application method of an aluminium oxide settlement tank full-direction scab cleaning device, and the application method is used for the full-direction scab cleaning devicein the volume of a separating settlement tank in the continuous production of aluminium oxide, and further suitable for a washing settlement tank, a decomposing tank and other volume. The aluminium oxide settlement tank full-direction scab cleaning device mainly comprises a circulating pump, a feed pipe, a circulating collecting pipe and scab cleaning machines. An inlet of the circulating pump isconnected with a settlement tank through the feed pipe, the settlement tank is filled with alkaline liquor, the height of the alkaline liquor is greater than the height of a joint of the settlement tank and the feed pipe, an outlet of the circulating pump is connected with the circulating collecting pipe, and a plurality of scab cleaning machines arranged side by side are arranged on the circulating collecting pipe. The scab cleaning machines are arranged at the top of the settlement tank, control valves are arranged above the scab cleaning machines, and a heating device is arranged on the circulating collecting pipe. The application method of the aluminium oxide settlement tank full-direction scab cleaning device can perform full-direction cleaning of a scab in the settlement tank, and the manual removal of the scab in the settlement tank is eliminated.

Description

technical field [0001] The invention relates to an omnidirectional scab cleaning device for an alumina settling tank and its use method, which is mainly used for the omnidirectional scab cleaning device in the volume of the separation settling tank in the continuous production of alumina, and is also suitable for cleaning the settling tank and decomposition tank equal volume. Background technique [0002] In the continuous production of alumina, a large number of scabs will be formed on the wall of the separation and settling tank, which will increase the load on the tank body and operating equipment, and there are cases where the scabs are not cleaned up in time and overwhelm the tank and the mixing paddle, resulting in large economic losses. . In order to solve this problem, the continuous production of each settling tank for 3 to 5 months must be shut down to remove scabs, which requires a lot of manpower and material resources. Usually, manual cleaning is used. People ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/093B08B3/08B08B3/10
CPCB08B3/08B08B3/10B08B9/0936Y02P20/10
Inventor 柳绍春
Owner 江阴市华能电热器材有限公司
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