CN115770779A - Comprehensive utilization method of aluminum ash and dust removal ash water elution salt - Google Patents
Comprehensive utilization method of aluminum ash and dust removal ash water elution salt Download PDFInfo
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- CN115770779A CN115770779A CN202211659644.2A CN202211659644A CN115770779A CN 115770779 A CN115770779 A CN 115770779A CN 202211659644 A CN202211659644 A CN 202211659644A CN 115770779 A CN115770779 A CN 115770779A
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 63
- 150000003839 salts Chemical class 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000000428 dust Substances 0.000 title claims abstract description 23
- 238000010828 elution Methods 0.000 title claims abstract description 19
- 239000002956 ash Substances 0.000 claims abstract description 123
- 239000002912 waste gas Substances 0.000 claims abstract description 42
- 238000000498 ball milling Methods 0.000 claims abstract description 30
- 238000002156 mixing Methods 0.000 claims abstract description 28
- 238000005406 washing Methods 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000010881 fly ash Substances 0.000 claims abstract description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 238000007885 magnetic separation Methods 0.000 claims abstract description 7
- 238000004064 recycling Methods 0.000 claims abstract description 3
- 239000011449 brick Substances 0.000 claims description 19
- 238000001704 evaporation Methods 0.000 claims description 19
- 229910010293 ceramic material Inorganic materials 0.000 claims description 16
- 239000011819 refractory material Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 14
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
- 239000005995 Aluminium silicate Substances 0.000 claims description 9
- 235000012211 aluminium silicate Nutrition 0.000 claims description 9
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 239000010797 grey water Substances 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 239000011780 sodium chloride Substances 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052593 corundum Inorganic materials 0.000 claims description 2
- 238000003837 high-temperature calcination Methods 0.000 claims description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 3
- 239000004927 clay Substances 0.000 claims 1
- 239000012266 salt solution Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 229910052731 fluorine Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Abstract
The invention relates to the technical field of resource recycling and discloses a comprehensive utilization method of aluminum ash and dust removal ash water elution salt, which comprises the following stepsThe following steps: s1: mixing the secondary aluminum ash, the dedusting ash and H 2 O after mixing and stirring, H 2 The proportion of O, secondary aluminum ash and dedusting ash is 1; s2: mixing with stirring to obtain H 2 Placing the O, the secondary aluminum ash and the dedusting ash in a ball mill, adding 15-25 parts by mass of calcium carbonate and 10-25 parts by mass of hydrochloric acid solution for ball milling and water washing, and performing ball milling and water washing; s3: h after ball milling in S2 2 Performing magnetic separation on O, secondary aluminum ash and fly ash to obtain iron-rich ash and excess materials; s4: and (4) continuously introducing the residual materials in the step (S3) into a filter press, and performing filter pressing operation to obtain wet ash with the water content of 15% and salt-containing solution. The secondary washing method can improve the efficiency of treating the waste gas, thereby reaching the national standard and improving the environmental protection, and simultaneously, the secondary aluminum ash and the dedusting ash are washed by water, so that the comprehensive utilization of the secondary aluminum ash and the dedusting ash is achieved, and the utilization effect of the aluminum ash and the dedusting ash is improved.
Description
Technical Field
The invention relates to the technical field of resource recovery, in particular to a comprehensive utilization method of aluminum ash and dust removal ash water elution salt.
Background
The secondary aluminum ash and the dedusting ash are ash which cannot be directly utilized and are generated in the regeneration process of waste aluminum, are rich in aluminum oxide and various other impurities, are difficult to directly recycle by a metallurgical method, can only be directly used as raw materials of refractory bricks and other materials, and inevitably waste a large amount of aluminum resources. In order to fully utilize the aluminum in the secondary aluminum ash and the fly ash, the prior art adopts high-temperature evaporation to separate out toxic substances in a steam form, but the method has extremely high danger that the toxic substances contain toxic and harmful substances such as fluorine, nitrogen and the like, and the cost is extremely high due to the operation.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a comprehensive utilization method of aluminum ash and dust removal ash water elution salt, thereby reducing the cost, reducing the discharge of hazardous substances and improving the utilization effect.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a comprehensive utilization method of aluminum ash and dust removal grey water elution salt comprises the following steps:
s1: mixing the secondary aluminum ash, the fly ash and H 2 O after mixing and stirring, H 2 The proportion of O, secondary aluminum ash and dedusting ash is 1;
s2: mixing with stirring to obtain H 2 Placing O, secondary aluminum ash and dedusting ash in a ball mill, adding 15-25 parts by mass of calcium carbonate and 10-25 parts by mass of hydrochloric acid solution, performing ball milling and water washing, and performing ball milling and water washing;
s3: will be provided withH in S2 after ball milling 2 Carrying out magnetic separation on O, secondary aluminum ash and dedusting ash to obtain iron-rich ash and excess material;
s4: continuously introducing the residual materials in the step S3 into a filter press, and performing filter pressing operation to obtain wet ash with the water content of 15% and salt-containing solution;
s5: evaporating the salt-containing solution obtained after filter pressing in the step S4, and evaporating H generated by evaporation 2 And recycling the O, and obtaining a salt-containing product.
Preferably, in S1, the secondary aluminum ash and the fly ash contain one or more of AlN and Al2O3, and in S2, the temperature of ball milling and washing is 60 to 80 ℃.
Preferably, the salt-containing solution in S4 is one or more of KCl and NaCl.
Preferably, said H distilled in S5 2 O will be reused in S1.
Preferably, in S2, the ball milling is performed while the waste gas is treated, and the waste gas treatment includes:
k1: performing induced air treatment on the ball milling part;
k2: communicating the waste gas in the K1 to a first waste gas treatment pool for treatment;
k3: communicating the waste gas treated in the K2 to a second waste gas pool for treatment;
k4: and detecting the gas, and discharging after the gas reaches the standard.
Preferably, the first waste gas treatment in K2 is water washing, and the second waste gas treatment in K3 is alkali washing.
Preferably, the wet ash in the S4 is further processed and utilized to prepare a ceramic material and a refractory material;
the method comprises the following steps:
q1, stirring and mixing kaolin and wet ash;
q2: making bricks from the product of Q1 mixing;
q3: drying the brick prepared by Q2 in a kiln;
q4: crushing the dried brick;
q5: and calcining the crushed product at high temperature to obtain the ceramic material and the refractory material.
Preferably, the kaolin has an Al content of 20-30%.
Preferably, the drying temperature in Q2 is 150-200 ℃, and the high-temperature calcination temperature in Q5 is 500-700 ℃.
Preferably, the content of Al in the wet ash is 50-70%.
(III) advantageous effects
Compared with the prior art, the invention provides a comprehensive utilization method of aluminum ash and dust removal ash water elution salt, which has the following beneficial effects:
1. according to the comprehensive utilization method of the aluminum ash and the dust removal ash water elution salt, the secondary washing method can improve the efficiency of waste gas treatment, so that the national standard is reached, the environmental protection is improved, and meanwhile, the secondary aluminum ash and the dust removal ash are washed by water, so that the comprehensive utilization of the secondary aluminum ash and the dust removal ash is achieved, and the utilization effect of the aluminum ash and the dust removal ash is improved.
2. The comprehensive utilization method of the aluminum ash and the dust removal grey water elution salt can further utilize the secondary aluminum ash and the dust removal ash, and mix the kaolin with low aluminum content and the wet ash, thereby producing ceramic materials and refractory materials with higher purity.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the present invention;
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The first embodiment is as follows:
a comprehensive utilization method of aluminum ash and dust removal grey water elution salt comprises the following steps:
s1: will contain AlN and Al 2 O 3 Secondary aluminium ash, fly ash and H of one or more of 2 O after mixing and stirring, H 2 The proportion of O, secondary aluminum ash and dedusting ash is 1;
s2: mixing with stirring to obtain H 2 Placing O, secondary aluminum ash and dedusting ash in a ball mill, adding 15 parts by mass of calcium carbonate and 10 parts by mass of dedusting ashPreparing hydrochloric acid solution, and controlling the temperature to be 60-80 ℃ to perform ball milling and water washing; when carrying out the ball-milling, handle waste gas, waste gas treatment includes:
k1: performing induced air treatment on the ball milling part;
k2: communicating the waste gas in the K1 to a first waste gas treatment tank for water washing treatment;
k3: communicating the waste gas treated in the K2 to a second waste gas pool for alkali washing treatment;
k4: and detecting the gas, and discharging after the gas reaches the standard.
S3: h after ball milling in S2 2 Carrying out magnetic separation on O, secondary aluminum ash and dedusting ash to obtain iron-rich ash and excess material;
s4: continuously introducing the residual materials in the S3 into a filter press, and performing filter pressing operation to obtain wet ash with the water content of 15% and a salt-containing solution, wherein the salt-containing solution is one or more of KCl and NaCl, and the wet ash can be further processed and utilized to prepare a ceramic material and a refractory material;
the method comprises the following steps:
q1, stirring and mixing kaolin with the Al content of 20-30% and wet ash with the Al content of 50-70%;
q2: making bricks from the product of Q1 mixing;
q3: drying the brick prepared by Q2 in a kiln at 150-200 ℃;
q4: crushing the dried brick;
q5: and calcining the crushed product at the high temperature of 500-700 ℃ to obtain the ceramic material and the refractory material.
S5: evaporating the salt-containing solution obtained after filter pressing in the step S4, and evaporating H generated by evaporation 2 O is recycled in S1, and the obtained salt-containing product.
The second embodiment:
a comprehensive utilization method of aluminum ash and dust removal grey water elution salt comprises the following steps:
s1: will contain AlN and Al 2 O 3 Secondary aluminium ash, fly ash and H of one or more of 2 After O is mixed and stirred，H 2 The proportion of O, secondary aluminum ash and dedusting ash is 1;
s2: mixing with stirring to obtain H 2 Placing O, secondary aluminum ash and dedusting ash in a ball mill, adding 18 parts by mass of calcium carbonate and 15 parts by mass of hydrochloric acid solution, and controlling the temperature to be 60-80 ℃ for ball milling and water washing; when carrying out the ball-milling, handle waste gas, waste gas treatment includes:
k1: carrying out induced air treatment on the ball milling part;
k2: communicating the waste gas in the K1 to a first waste gas treatment tank for water washing treatment;
k3: communicating the waste gas treated in the K2 to a second waste gas pool for alkali washing treatment;
k4: and detecting the gas, and discharging after the gas reaches the standard.
S3: h after ball milling in S2 2 Carrying out magnetic separation on O, secondary aluminum ash and dedusting ash to obtain iron-rich ash and excess material;
s4: continuously introducing the residual materials in the S3 into a filter press, and performing filter pressing operation to obtain wet ash with the water content of 15% and a salt-containing solution, wherein the salt-containing solution is one or more of KCl and NaCl, and the wet ash can be further processed and utilized to prepare a ceramic material and a refractory material;
the method comprises the following steps:
q1, stirring and mixing kaolin with the Al content of 20-30% and wet ash with the Al content of 50-70%;
q2: making bricks from the product of Q1 mixing;
q3: drying the brick prepared by Q2 in a kiln at 150-200 ℃;
q4: crushing the dried brick;
q5: and calcining the crushed product at the high temperature of 500-700 ℃ to obtain the ceramic material and the refractory material.
S5: evaporating the salt-containing solution obtained after filter pressing in the step S4, and evaporating H generated by evaporation 2 O is recycled in S1, and the obtained salt-containing product.
Example three:
a comprehensive utilization method of aluminum ash and dust removal grey water elution salt comprises the following steps:
s1: will contain AlN and Al 2 O 3 Secondary aluminium ash, fly ash and H of one or more of 2 O after mixing and stirring H 2 The proportion of O, secondary aluminum ash and dedusting ash is 1;
s2: mixing with stirring to obtain H 2 Placing O, secondary aluminum ash and dedusting ash in a ball mill, adding 20 parts by mass of calcium carbonate and 20 parts by mass of hydrochloric acid solution, and controlling the temperature to be 60-80 ℃ for ball milling and water washing; when carrying out the ball-milling, handle waste gas, waste gas treatment includes:
k1: performing induced air treatment on the ball milling part;
k2: communicating the waste gas in the K1 to a first waste gas treatment tank for water washing treatment;
k3: communicating the waste gas treated in the K2 to a second waste gas pool for alkali washing treatment;
k4: and detecting the gas, and discharging after the gas reaches the standard.
S3: h after ball milling in S2 2 Performing magnetic separation on O, secondary aluminum ash and fly ash to obtain iron-rich ash and excess materials;
s4: continuously introducing the residual materials in the S3 into a filter press, and performing filter pressing operation to obtain wet ash with the water content of 15% and a salt-containing solution, wherein the salt-containing solution is one or more of KCl and NaCl, and the wet ash can be further processed and utilized to prepare a ceramic material and a refractory material;
the method comprises the following steps:
q1, stirring and mixing kaolin with the Al content of 20-30% and wet ash with the Al content of 50-70%;
q2: making bricks from the product of Q1 mixing;
q3: drying the brick prepared by Q2 in a kiln at 150-200 ℃;
q4: crushing the dried brick;
q5: and calcining the crushed product at the high temperature of 500-700 ℃ to obtain the ceramic material and the refractory material.
S5: evaporating the salt-containing solution obtained after filter pressing in S4, and evaporating H generated by evaporation 2 O is recycled in S1, and the obtained salt-containing product.
Example four:
a comprehensive utilization method of aluminum ash and dust removal grey water elution salt comprises the following steps:
s1: will contain AlN and Al 2 O 3 Secondary aluminum ash, fly ash and H of one or more of 2 O after mixing and stirring, H 2 The proportion of O to secondary aluminum ash and dedusting ash is 1;
s2: mixing with stirring 2 Placing O, secondary aluminum ash and dedusting ash in a ball mill, adding 25 parts by mass of calcium carbonate and 25 parts by mass of hydrochloric acid solution, and controlling the temperature to be 60-80 ℃ for ball milling and water washing; when carrying out the ball-milling, handle waste gas, waste gas treatment includes:
k1: performing induced air treatment on the ball milling part;
k2: communicating the waste gas in the K1 to a first waste gas treatment tank for water washing treatment;
k3: communicating the waste gas treated in the K2 to a second waste gas pool for alkali washing treatment;
k4: and detecting the gas, and discharging after the gas reaches the standard.
S3: h after ball milling in S2 2 Performing magnetic separation on O, secondary aluminum ash and fly ash to obtain iron-rich ash and excess materials;
s4: continuously introducing the residual materials in the S3 into a filter press, and performing filter pressing operation to obtain wet ash with the water content of 15% and salt-containing solution, wherein the salt-containing solution is one or more of KCl and NaCl, and the wet ash can be further processed and utilized to prepare ceramic materials and refractory materials;
the method comprises the following steps:
q1: stirring and mixing kaolin with the Al content of 20-30% and wet ash with the Al content of 50-70%;
q2: making bricks from the product of Q1 mixing;
q3: drying the brick prepared by Q2 in a kiln at 150-200 ℃;
q4: crushing the dried brick;
q5: and calcining the crushed product at the high temperature of 500-700 ℃ to obtain the ceramic material and the refractory material.
S5: evaporating the salt-containing solution obtained after filter pressing in S4, and evaporating H generated by evaporation 2 O is recycled in S1, and the salt-containing product is obtained.
The treated exhaust gas, the salt-containing products, the ceramic materials and the refractory materials of the examples 1 to 4 were tested, and the test data are shown in Table 1:
| fluorine content (mg/L) of gas | Leaching pH value of ceramic material and refractory material | Percentage of product containing salt | |
| Example one | 7.4 | 7.2 | 99.8 |
| Example two | 8.5 | 7.5 | 99.7 |
| EXAMPLE III | 8.8 | 7.7 | 99.6 |
| Example four | 7.5 | 7.3 | 99.9 |
As can be seen from table 1, after the secondary aluminum ash and the fly ash in examples 1 to 4 are treated by the treatment method, the fluorine content, the percentage of the salt-containing product, and the percentage of the leached PH value in the ceramic material and the refractory material all meet the national standards, so the comprehensive utilization method of the secondary aluminum ash and the fly ash elution salt has high efficiency prospect.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (10)
1. A comprehensive utilization method of aluminum ash and dust removal ash water elution salt is characterized by comprising the following steps:
s1: mixing the secondary aluminum ash, the fly ash and H 2 O after mixing and stirring, H 2 The proportion of O, secondary aluminum ash and dedusting ash is 1;
s2: mixing with stirring 2 O and secondary aluminum ash, removingPlacing the dust in a ball mill, adding 15-25 parts by mass of calcium carbonate and 10-25 parts by mass of hydrochloric acid solution, and carrying out ball milling and water washing;
s3: h after ball milling in S2 2 Performing magnetic separation on O, secondary aluminum ash and fly ash to obtain iron-rich ash and excess materials;
s4: continuously introducing the residual materials in the S3 into a filter press, and performing filter pressing operation to obtain wet ash with the water content of 15% and salt-containing solution;
s5: evaporating the salt-containing solution obtained after filter pressing in S4, and evaporating H generated by evaporation 2 And recycling the O, and obtaining a salt-containing product.
2. The method for comprehensively utilizing the elution salts of the aluminum ash and the dust removal ash water according to claim 1, wherein in S1, the secondary aluminum ash and the dust removal ash contain one or more of AlN and Al2O3, and in S2, the temperature of ball milling and water washing is 60-80 ℃.
3. The method for comprehensive utilization of aluminum ash and ash removal water elution salt as claimed in claim 1, wherein the salt solution in S4 is one or more of KCl and NaCl.
4. The method of claim 1, wherein the H distilled in S5 is used as the stripping salt 2 O will be reused in S1.
5. The method for comprehensively utilizing the elution salts of the aluminum ash and the dust removal grey water as claimed in claim 1, wherein in the step S2, the ball milling is performed while the waste gas is treated, and the waste gas treatment comprises the following steps:
k1: performing induced air treatment on the ball milling part;
k2: communicating the waste gas in the K1 to a first waste gas treatment pool for treatment;
k3: communicating the waste gas treated in the K2 to a second waste gas pool for treatment;
k4: and detecting the gas, and discharging after the gas reaches the standard.
6. The method as claimed in claim 5, wherein the first waste gas treatment in K2 is water washing and the second waste gas treatment in K3 is alkali washing.
7. The comprehensive utilization method of aluminum ash and dust removal grey water elution salt as claimed in claim 1, wherein the wet ash in S4 is further processed and utilized to prepare ceramic materials and refractory materials;
the method comprises the following steps:
q1, stirring and mixing kaolin and wet ash;
q2: making bricks from the product of Q1 mixing;
q3: drying the brick prepared by Q2 in a kiln;
q4: crushing the dried brick;
q5: and calcining the crushed product at high temperature to obtain the ceramic material and the refractory material.
8. The method of claim 7, wherein the kaolin clay has an Al content of 20-30%.
9. The method as claimed in claim 7, wherein the drying temperature in Q2 is 150-200 ℃, and the high temperature calcination temperature in Q5 is 500-700 ℃.
10. The method of claim 7, wherein the wet ash contains Al in an amount of 50-70%.
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| CN110194474A (en) * | 2019-02-21 | 2019-09-03 | 新疆众和股份有限公司 | Utilize the process of aluminium ash production aluminium polychloride and calcium aluminate |
| CN109970456A (en) * | 2019-04-23 | 2019-07-05 | 南昌大学 | The recycling of aluminium lime-ash and reuse method |
| CN112142353A (en) * | 2020-10-16 | 2020-12-29 | 东北大学 | Method for efficiently and harmlessly treating aluminum ash |
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