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Primary washing liquid recycling system and recycling method

A recovery system and lotion technology, applied in separation methods, chemical instruments and methods, filtration circuits, etc., can solve problems such as waste of resources

Inactive Publication Date: 2019-04-30
YUNNAN WENSHAN ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the industrial production of modified alumina, which needs to wash the aged filter residue with water and then carry out the next step of the process. The primary washing liquid obtained during the first water washing is mainly composed of water, very few fine particles of aluminum hydroxide, There is very little sodium nitrate, and the temperature is 60°C. In the existing industry, after cleaning, it is directly discharged into the ditch and enters the sewage treatment tank, and it is cleaned uniformly, causing a certain waste of resources. Provide a washing liquid recovery system and recovery method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the primary washing liquid recovery system includes a primary washing tank 1, a primary washing filter press 8, a primary washing liquid storage tank 15, and a hot water tank 18. The bottom of the primary washing liquid tank 1 is provided with a washing outlet 13, and the primary washing liquid storage tank The top of 15 is provided with primary washing hydraulic filtrate inlet 9, and the lower part of primary washing liquid storage tank 15 is provided with primary washing hydraulic filtrate outlet 16 and inspection hole 14. The water washing filter press 8 is located on the delivery pipe 19, and the primary washing hydraulic filtrate outlet 16 is communicated with the hot water tank 18 through the connecting pipe 17, and the hot water tank 18 is communicated with the third washing tank and the fourth washing tank.

[0030] In use, the primary washing liquid recovery system is composed of a primary water washing tank, a primary water washing f...

Embodiment 2

[0033] Based on Example 1, such as figure 2 As shown, a water washing chamber 21 is arranged in the primary washing tank 1, and a tank cover 2 is arranged on the top of the primary washing tank 1, and a stirring frame 3, a secondary washing liquid inlet and a steam inlet are arranged on the tank cover 2, and the stirring frame 3 A rotating motor 4 is fixed, and the power output end of the rotating motor 4 is connected with a rotating shaft 20 inserted into the washing chamber 21, and a stirring mechanism is arranged on the rotating shaft 20. The stirring mechanism includes a first stirring mechanism 10 and a second stirring mechanism 11 , the first stirring mechanism 10 is located in the middle of the rotating shaft 20 , and the second stirring mechanism 11 is located at the bottom of the rotating shaft 20 .

[0034] In use, the first stirring mechanism located in the middle and the second stirring mechanism located at the bottom are arranged to perform stirring from two leve...

Embodiment 3

[0036] Based on Embodiment 2, the first stirring mechanism 10 includes a first stirring mechanism connecting seat 1001, a first blade 23 and a second blade 24, the first stirring mechanism connecting seat 1001 is sleeved on the rotating shaft 20, the first stirring mechanism connecting seat 1001 are respectively connected with the first blade 23 and the second blade 24, the second stirring mechanism 11 includes a second stirring mechanism connecting seat 1101, a first handle 28 and a second rotating handle 29, and the second stirring mechanism connecting seat 1101 is sleeved on On the rotating shaft 20, the second stirring mechanism connection seat 1101 is respectively connected with one end of the first rotary handle 28 and one end of the second rotary handle 29, the other end of the first rotary handle 28 is connected with the first support piece 30, and the second rotary handle 29 is connected with the other end. One end is connected with a second support piece 31 . The first...

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Abstract

The invention relates to the technical field of production of chemical products, and in particular, relates to a primary washing liquid recycling system and recycling method, wherein the primary washing liquid recycling system includes a primary water washing tank, a primary water washing filter press, a primary washing liquid storage tank and a hot water tank. A water washing discharge outlet isarranged at the bottom of the primary water washing tank; a primary washing liquid press filtrate inlet is arranged at the top of the primary washing liquid storage tank; a primary washing liquid press filtrate outlet is arranged at the lower part of the primary washing liquid storage tank; a water washing discharge port communicates with the primary washing liquid press filtrate inlet through a conveying pipe; the primary water washing filter press is located on the conveying pipe; the primary washing liquid press filtrate outlet communicates with the hot water tank through a connecting pipe,and the hot water tank communicates with a tertiary washing tank and a quartus washing tank. The problem that a certain resource waste is caused because sewage is discharged directly to a ditch and then enters a sewage treatment pond after cleaning is completed and unified cleaning is performed in conventional industry is solved.

Description

technical field [0001] The invention relates to the technical field of chemical product production, in particular to a primary lotion recovery system and recovery method. Background technique [0002] In the industrial production of modified alumina, industrial aluminum hydroxide and lye are used as raw materials to generate concentrated sodium aluminate solution by indirect heating with steam in a dissolution tank. After dilution, the concentrated sodium aluminate solution is filtered with a plate filter press. The filtrate flows into the alkali solution storage tank for precipitation alkali liquor. The composition of the filter residue is undissolved industrial aluminum hydroxide, sodium silicon slag, and aluminum hydroxide precipitated when diluting the concentrated sodium aluminate solution. The composition of the filter residue attached liquid is sodium aluminate solution and sodium oxide solution. The direct discharge of the attached liquid will cause pollution and wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D36/00C01F7/04
CPCB01D36/00C01F7/04
Inventor 谢桂炳刘定明高云川岳恒龙杨敬黄初绍范超
Owner YUNNAN WENSHAN ALUMINUM