CN110947219A - Device and method for recycling materials in ternary precursor washing wastewater and recycling wastewater - Google Patents
Device and method for recycling materials in ternary precursor washing wastewater and recycling wastewater Download PDFInfo
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- CN110947219A CN110947219A CN201911378507.XA CN201911378507A CN110947219A CN 110947219 A CN110947219 A CN 110947219A CN 201911378507 A CN201911378507 A CN 201911378507A CN 110947219 A CN110947219 A CN 110947219A
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- recycling
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- 239000002351 wastewater Substances 0.000 title claims abstract description 116
- 239000000463 material Substances 0.000 title claims abstract description 48
- 238000005406 washing Methods 0.000 title claims abstract description 47
- 239000002243 precursor Substances 0.000 title claims abstract description 42
- 238000004064 recycling Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000011010 flushing procedure Methods 0.000 claims abstract description 14
- 239000012452 mother liquor Substances 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims description 8
- 239000012982 microporous membrane Substances 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims description 2
- -1 polypropylene Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000002356 single layer Substances 0.000 claims description 2
- 239000006228 supernatant Substances 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000012528 membrane Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000001223 reverse osmosis Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000009615 deamination Effects 0.000 description 2
- 238000006481 deamination reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920005629 polypropylene homopolymer Polymers 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- KFDQGLPGKXUTMZ-UHFFFAOYSA-N [Mn].[Co].[Ni] Chemical compound [Mn].[Co].[Ni] KFDQGLPGKXUTMZ-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Images
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/68—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Relates to a device for recycling materials in ternary precursor washing wastewater and recycling wastewater, which comprises a mother liquor tank, a microporous precision filter, a wastewater tank, a storage tank, an air source, a pressure pump, a feed valve, a discharge valve, a back flushing valve, a first-stage filter, a second-stage filter, a third-stage filter and a fourth-stage filter, wherein the mother liquor tank is connected with the microporous precision filter; the mother liquid tank, the pressure pump and the feed inlet of the microporous precise filter are connected in sequence through a pipeline, and a feed valve is arranged in the pipeline; the discharge port, the discharge valve and the storage tank of the microporous precise filter are connected in sequence through pipelines; an air source for providing compressed air, a blowback valve and an air inlet of the micropore precision filter are connected in sequence through pipelines; the discharge hole of the microporous precise filter, the discharge valve and the waste water tank are connected in turn through pipelines; the waste water tank, the back flushing valve and the discharge hole of the microporous precise filter are connected in turn through pipelines. Also relates to a method for recycling materials in the ternary precursor washing wastewater and recycling the wastewater. Not only the materials are recovered, but also the wastewater recycling is realized, belonging to the technical field of wastewater treatment.
Description
Technical Field
The invention relates to the technical field of ternary precursor washing wastewater treatment, in particular to a device and a method for recycling materials and wastewater in nickel-cobalt-manganese ternary precursor washing wastewater.
Background
In the production of the ternary precursor material, the waste water in the production process mainly comprises mother liquor and washing water generated in the working sections of reaction, aging and washing, and the washing waste water contains pollution factors such as ammonia nitrogen, alkali, heavy metals (nickel, cobalt, manganese) and the like. In the washing process, a small amount of ternary precursor materials enter washing wastewater due to the problems of machinery and process methods, so that the waste of ternary precursor products is caused, the treatment difficulty and cost of the washing wastewater are increased, the ternary precursor needs to be washed by pure water in the synthesis process, and each ton of ternary precursor products needs 20-30 tons of pure water to be washed, so that a large amount of water resources are consumed. Therefore, the recycling of materials in the ternary precursor washing wastewater and the recycling of the washing wastewater are of great importance to the environmental protection and the reduction of the production cost of the ternary precursor product.
At present, the recovery of materials in the washing wastewater of the ternary precursor material produced by a chemical method mainly comprises the following two treatment processes: 1, pH adjustment, metal precipitation and filtration and discharge; 2. quality grading treatment: the washing wastewater is treated by a reverse osmosis membrane to recover membrane produced water, and membrane concentrated water is merged into mother liquor wastewater for treatment; mother liquor wastewater is subjected to stripping deamination, precipitation filtration and turbid condensate reverse osmosis membrane treatment to recover membrane produced water, and membrane concentrated water is sent to a sewage plant in an industrial area for treatment and then discharged. In the process 1, alkali liquor is required to be added to adjust the pH value, so that the cost is greatly influenced; the process 2 comprises a stripping deamination process and a turbid condensate reverse osmosis membrane treatment process, and has the advantages of long treatment process flow, complex process and high operation cost.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to: the device and the method for recycling the materials in the ternary precursor washing wastewater and recycling the wastewater have simple treatment procedures and reduce the waste of water resources.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for recycling materials in ternary precursor washing wastewater and recycling wastewater comprises a mother liquid tank, a microporous precision filter, a wastewater tank, a storage tank, an air source, a pressure pump, a feed valve, a discharge valve, a back flushing valve, a pressure pump; the microporous precise filter comprises a feed inlet positioned at the lower end, a discharge outlet positioned at the upper end, a discharge outlet positioned at the lower end and an air inlet positioned at the upper end; the mother liquid tank, the pressure pump and the feed inlet of the microporous precise filter are connected in sequence through a pipeline, and a feed valve is arranged in the pipeline; the discharge port, the discharge valve and the storage tank of the microporous precise filter are connected in sequence through pipelines; an air source for providing compressed air, a blowback valve and an air inlet of the micropore precision filter are connected in sequence through pipelines; the discharge hole of the microporous precise filter, the discharge valve and the waste water tank are connected in turn through pipelines; the waste water tank, the back flushing valve and the discharge hole of the microporous precise filter are connected in turn through pipelines.
Preferably, the number of the mother liquid tanks is two or more, and the mother liquid tanks are connected to the pipeline before the pressure pump in parallel.
Preferably, the number of the storage tanks is more than two, and the storage tanks are connected with pipelines behind the discharge valves in parallel.
Preferably, stirring blades are arranged in the mother liquid tank and the storage tank.
Preferably, a liquid level meter is arranged in the mother liquid tank.
Preferably, the mother liquid tank, the storage tank and the waste water tank are all made of homopolymerized polypropylene.
Preferably, the microporous precise filter comprises a stainless steel outer cylinder and a folding microporous membrane filter element; the number of the folding microporous membrane filter elements is single-layer or multi-layer and is positioned in the stainless steel outer cylinder; the stainless steel outer cylinder is connected by adopting a quick-opening ring head bolt.
A method for recycling materials and wastewater in ternary precursor washing wastewater adopts a device for recycling materials and wastewater in ternary precursor washing wastewater, and comprises the following steps: 1) the ternary precursor washing wastewater is intensively discharged into a mother liquor tank; 2) discharging the washing wastewater in the mother liquid tank into a wastewater tank through a microporous precision filter by using a pressure pump; 3) carrying out back flushing on the microporous precision filter by using compressed air, and accumulating back-flushed materials to the bottom end of the microporous precision filter; 4) and (4) backflushing the microporous precision filter by using the wastewater in the wastewater tank, and flushing the materials into the storage tank for recovery.
Preferably, in the step 1), when the stirring blade is submerged by the liquid level in the mother liquid tank, the stirring function is started, and when the liquid level is raised to a set value, the step 2) is carried out.
Preferably, the mother liquid tank is used for storing ternary precursor mother liquid wastewater, the waste water tank is used for storing wastewater filtered by the microporous precision filter, the storage tank is used for storing recycled materials, the microporous precision filter is used for filtering supernatant liquid in the mother liquid tank, and compressed air blowback is used for quickly separating the materials in the microporous precision filter from the folding microporous membrane filter element.
The principle of the invention is as follows: the method for recycling the washing wastewater is characterized in that the washing wastewater passes through the microporous precision filter, materials in the wastewater are separated from water in a solid-liquid mode, the materials can be recycled, the treated water can replace pure water to carry out backflushing on the microporous precision filter, the materials in the washing wastewater are recycled, the recycling of the wastewater is realized, the method is simple, the operation is convenient, the practicability is high, the production cost can be effectively reduced, and certain economic benefits are brought.
In summary, the present invention has the following advantages:
(1) the method is simple in operation, convenient to operate and high in practicability, and production cost is reduced through reasonable design flow and resource utilization.
(2) The wastewater treated by the microporous precise filter is used as backwash water, so that the discharge of the wastewater is reduced, the waste of water resources is reduced, the environment is protected, the production cost of a ternary precursor product is reduced, and the economic benefit is improved.
(3) The energy consumption is low, and the residual ternary precursor materials in the washing wastewater can be removed, so that the treatment difficulty and the economic cost of the washing wastewater are reduced.
(4) The PPH (polypropylene homopolymer) material is adopted, and has excellent chemical corrosion resistance, wear resistance, high temperature resistance, corrosion resistance, aging resistance and insulativity.
(5) Wastewater in the wastewater tank is adopted to carry out back flushing on the microporous precision filter, and accumulated materials in the microporous precision filter are flushed into the storage tank, so that the microporous precision filter and the discharge pipeline are prevented from being blocked by accumulated materials.
(6) The wastewater in the wastewater tank is used for replacing pure water, and the wastewater treated by the microporous precise filter does not contain a ternary precursor material, so that a pipeline cannot be blocked during backflushing, and other impurities cannot be introduced.
Drawings
FIG. 1 is a schematic diagram of a device for recovering materials in ternary precursor washing wastewater and recycling the wastewater.
Wherein, 1 is the mother liquor groove, 2 is micropore precision filter, 3 is the wastewater tank, 4 is the storage tank, 5 is the air supply, 6 is the force pump, 7 is the feed valve, 8 is the baiting valve, 9 is the blowback valve, 10 is the bleeder valve, 11 is the recoil valve, 12 is the recoil water.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
The utility model provides a material recovery and waste water cyclic utilization's device in ternary precursor washing waste water which characterized in that: comprises a mother liquid tank, a micropore precision filter, a waste water tank, a storage tank, an air source, a pressure pump, a feed valve, a discharge valve, a back flushing valve and a filter; the microporous precise filter comprises a feed inlet positioned at the lower end, a discharge outlet positioned at the upper end, a discharge outlet positioned at the lower end and an air inlet positioned at the upper end; the mother liquid tank, the pressure pump and the feed inlet of the microporous precise filter are connected in sequence through a pipeline, and a feed valve is arranged in the pipeline; the discharge port, the discharge valve and the storage tank of the microporous precise filter are connected in sequence through pipelines; an air source for providing compressed air, a blowback valve and an air inlet of the micropore precision filter are connected in sequence through pipelines; the discharge hole of the microporous precise filter, the discharge valve and the waste water tank are connected in turn through pipelines; the waste water tank, the back flushing valve and the discharge hole of the microporous precise filter are connected in turn through pipelines.
The mother liquor tank is used for storing the ternary precursor mother liquor wastewater; the waste water tank stores the waste water filtered by the microporous precise filter; and the storage tank is used for storing the recovered ternary precursor.
Micropore precision filter, its lower extreme feed inlet connect a mother cistern and No. two mother cistern, receive the waste liquid in the mother cistern, and micropore precision filter's upper end discharge gate is connected the wastewater disposal basin, discharges the waste liquid after the filtration, and micropore precision filter's lower extreme discharge gate connects a storage tank and No. two storage tanks for material recovery.
The pressure pump presses the washing wastewater into the microporous precision filter, and the feed valve, the discharge valve, the backflushing valve and the blowback valve are used for controlling the communication condition in the pipeline.
A method for recycling materials in ternary precursor washing wastewater and recycling wastewater comprises the following specific steps: and (3) firstly, intensively discharging the ternary precursor washing wastewater into a mother liquor tank, and starting a stirring function when the stirring paddle is submerged by the liquid level in the mother liquor tank. And opening the feed valve and the discharge valve until the liquid level in the mother liquid tank rises to a specified value, and then starting the pressure pump to press the washing wastewater in the mother liquid tank into the wastewater tank through the microporous precision filter. After washing waste water in the mother liquor tank is completely pressed into the waste water tank, the pressure pump is closed, the feed valve and the discharge valve are closed again, then the discharge valve and the blowback valve are opened, blowback is carried out on the microporous precision filter, materials which are blown down by blowback are accumulated to the bottom end of the microporous precision filter, the blowback valve is closed, the blowback valve is opened, waste water in the waste water tank is used for replacing pure water to carry out backflushing on the microporous precision filter, and the materials are flushed into the storage tank to be recycled. The wastewater from the wastewater tank for back flushing is discharged into a sewage treatment system for further treatment.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides a material recovery and waste water cyclic utilization's device in ternary precursor washing waste water which characterized in that: comprises a mother liquid tank, a micropore precision filter, a waste water tank, a storage tank, an air source, a pressure pump, a feed valve, a discharge valve, a back flushing valve and a filter; the microporous precise filter comprises a feed inlet positioned at the lower end, a discharge outlet positioned at the upper end, a discharge outlet positioned at the lower end and an air inlet positioned at the upper end; the mother liquid tank, the pressure pump and the feed inlet of the microporous precise filter are connected in sequence through a pipeline, and a feed valve is arranged in the pipeline; the discharge port, the discharge valve and the storage tank of the microporous precise filter are connected in sequence through pipelines; an air source for providing compressed air, a blowback valve and an air inlet of the micropore precision filter are connected in sequence through pipelines; the discharge hole of the microporous precise filter, the discharge valve and the waste water tank are connected in turn through pipelines; the waste water tank, the back flushing valve and the discharge hole of the microporous precise filter are connected in turn through pipelines.
2. The apparatus for recycling materials and wastewater in ternary precursor washing wastewater according to claim 1, wherein: the number of the mother liquid tanks is more than two, and the mother liquid tanks are connected into a pipeline in front of the pressure pump in parallel.
3. The apparatus for recycling materials and wastewater in ternary precursor washing wastewater according to claim 1, wherein: the number of the storage tanks is more than two, and the storage tanks are connected with pipelines behind the discharge valves in parallel.
4. The apparatus for recycling materials and wastewater in ternary precursor washing wastewater according to claim 1, wherein: stirring blades are arranged in the mother liquid tank and the storage tank.
5. The apparatus for recycling materials and wastewater in ternary precursor washing wastewater according to claim 1, wherein: a liquid level meter is arranged in the mother liquid tank.
6. The apparatus for recycling materials and wastewater in ternary precursor washing wastewater according to claim 1, wherein: the mother liquid tank, the storage tank and the waste water tank are all made of homopolymerized polypropylene.
7. The apparatus for recycling materials and wastewater in ternary precursor washing wastewater according to claim 1, wherein: the microporous precise filter comprises a stainless steel outer cylinder and a folding microporous membrane filter element; the number of the folding microporous membrane filter elements is single-layer or multi-layer and is positioned in the stainless steel outer cylinder; the stainless steel outer cylinder is connected by adopting a quick-opening ring head bolt.
8. A method for recovering materials in ternary precursor washing wastewater and recycling wastewater, which adopts the device for recovering materials in ternary precursor washing wastewater and recycling wastewater of any one of claims 1 to 7, and is characterized in that: the method comprises the following steps:
1) the ternary precursor washing wastewater is intensively discharged into a mother liquor tank;
2) discharging the washing wastewater in the mother liquid tank into a wastewater tank through a microporous precision filter by using a pressure pump;
3) carrying out back flushing on the microporous precision filter by using compressed air, and accumulating back-flushed materials to the bottom end of the microporous precision filter;
4) and (4) backflushing the microporous precision filter by using the wastewater in the wastewater tank, and flushing the materials into the storage tank for recovery.
9. The method for recovering materials from ternary precursor washing wastewater and recycling wastewater according to claim 8, characterized in that: in the step 1), when the stirring paddle is submerged by the liquid level in the mother liquid tank, starting the stirring function, and when the liquid level rises to a set value, entering the step 2).
10. The method for recovering materials from ternary precursor washing wastewater and recycling wastewater according to claim 8, characterized in that: the mother liquid tank is used for storing ternary precursor mother liquid wastewater, the waste water tank is used for storing wastewater filtered by the microporous precision filter, the storage tank is used for storing recycled materials, the microporous precision filter is used for filtering supernatant liquid in the mother liquid tank, and compressed air blowback is used for quickly separating the materials in the microporous precision filter from the folding microporous membrane filter element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378507.XA CN110947219A (en) | 2019-12-27 | 2019-12-27 | Device and method for recycling materials in ternary precursor washing wastewater and recycling wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911378507.XA CN110947219A (en) | 2019-12-27 | 2019-12-27 | Device and method for recycling materials in ternary precursor washing wastewater and recycling wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN110947219A true CN110947219A (en) | 2020-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911378507.XA Pending CN110947219A (en) | 2019-12-27 | 2019-12-27 | Device and method for recycling materials in ternary precursor washing wastewater and recycling wastewater |
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| CN (1) | CN110947219A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754015A (en) * | 2021-09-23 | 2021-12-07 | 苏州华辰净化股份有限公司 | Ternary precursor wastewater treatment method and treatment system |
| CN113813908A (en) * | 2021-10-22 | 2021-12-21 | 上海安赐环保科技股份有限公司 | Integrated reaction and separation system, process and application |
-
2019
- 2019-12-27 CN CN201911378507.XA patent/CN110947219A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754015A (en) * | 2021-09-23 | 2021-12-07 | 苏州华辰净化股份有限公司 | Ternary precursor wastewater treatment method and treatment system |
| CN113813908A (en) * | 2021-10-22 | 2021-12-21 | 上海安赐环保科技股份有限公司 | Integrated reaction and separation system, process and application |
| CN113813908B (en) * | 2021-10-22 | 2023-09-22 | 上海安赐环保科技股份有限公司 | Integrated reaction and separation system, process and application |
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