CN109081413B - Water circulation separation system for waste residues of grinding materials - Google Patents
Water circulation separation system for waste residues of grinding materials Download PDFInfo
- Publication number
- CN109081413B CN109081413B CN201811079357.8A CN201811079357A CN109081413B CN 109081413 B CN109081413 B CN 109081413B CN 201811079357 A CN201811079357 A CN 201811079357A CN 109081413 B CN109081413 B CN 109081413B
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- China
- Prior art keywords
- water
- tank
- pool
- air
- dissolved air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 111
- 239000002699 waste material Substances 0.000 title claims abstract description 22
- 238000000926 separation method Methods 0.000 title claims abstract description 19
- 238000000227 grinding Methods 0.000 title description 2
- 239000000463 material Substances 0.000 title description 2
- 239000010865 sewage Substances 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims description 14
- 239000000701 coagulant Substances 0.000 claims description 8
- 239000010802 sludge Substances 0.000 claims description 8
- 239000003814 drug Substances 0.000 claims description 6
- 239000006260 foam Substances 0.000 claims description 5
- 238000007667 floating Methods 0.000 claims description 4
- 230000004927 fusion Effects 0.000 claims description 4
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 230000003311 flocculating effect Effects 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010992 reflux Methods 0.000 abstract description 4
- 238000005273 aeration Methods 0.000 abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009300 dissolved air flotation Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/007—Modular design
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a water circulation separation system for abrasive waste residues, which comprises a sewage pool, a clean water pool, a mixing pool, a dissolved air tank and an air floatation pool, wherein the sewage pool is communicated with the clean water pool and is jointly output into the mixing pool, an outlet of the mixing pool is connected with the dissolved air tank, an outlet of the dissolved air tank is connected with a dissolved air water releaser, the releaser is arranged in the air floatation pool, a waste residue outlet and a clean water outlet are arranged on the air floatation pool, a water collecting area is arranged at the bottom of the pool, the water collecting area is arranged below the clean water outlet, and a clean water circulation reflux system is formed between the clean water outlet and the clean water pool. Through the mode, the invention has the advantages of high processing capacity, high efficiency and small occupied area; the technical process and the equipment structure are simple, and the use and the maintenance are convenient; the method has obvious effect on removing the abrasive waste residues in the water, and simultaneously, as the aeration increases the dissolved oxygen in the water, the method provides favorable conditions for the subsequent treatment; the water circulation system is provided, so that the good slag-water separation effect can be achieved, the energy is saved, and the cost is reduced.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a water circulation separation system for abrasive waste residues.
Background
In recent years, the air floatation technology is widely applied to water supply and drainage and wastewater treatment, and can effectively remove light floatation flocs which are difficult to precipitate in wastewater. Dissolved Air Flotation (DAF) is suitable for treating low turbidity, high color, high organic content, low oil content, low surface active material content or water with rich algae. Compared with other air floatation modes, the device has the advantages of high hydraulic load, compact tank body and the like. However, the disadvantages of complex process, high electric energy consumption, high noise of the air compressor and the like limit the application of the air compressor.
Disclosure of Invention
The invention mainly solves the technical problem of providing a water circulation separation system for abrasive waste residues.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a abrasive material waste residue water circulation separation system, including effluent water sump, clean water tank, mixed tank, dissolve gas pitcher and air supporting pond, effluent water sump and clean water tank intercommunication export jointly to in the mixed tank, mixed tank export is connected with dissolving the gas pitcher, dissolves gas pitcher exit linkage and has dissolved gas water releaser, in the releaser was located the air supporting pond, be equipped with waste residue export and clear water export on the air supporting pond, the bottom of the pool portion is equipped with the catchment area, and the clear water export below is located to the catchment area, form clear water circulation reflux system between clear water export and the clean water tank.
In a preferred embodiment of the invention, a dosing port is arranged in the water collecting area, and coagulant and flocculant are put into the air floatation tank from the dosing port.
In a preferred embodiment of the invention, a heating device is provided in the water collection area for accelerating the fusion of the coagulant and flocculant with the sewage.
In a preferred embodiment of the invention, the lagoon is connected directly to the tank or to the tank.
In a preferred embodiment of the invention, a foam scraper is arranged above the air floatation tank.
In a preferred embodiment of the invention, the air in the dissolved air tank is provided by an air compressor, and a floating ball liquid level meter in the dissolved air tank controls the opening and closing of the air compressor.
In a preferred embodiment of the invention, the releaser is provided with a self-cleaning system, the self-cleaning system comprises a vacuumizing system and a clear water cleaning system, and when the releaser is cleaned, the tongue piece of the releaser is opened, and the vacuumizing system and the clear water cleaning system are opened for flushing.
In a preferred embodiment of the invention, the dissolved air tank is provided with a pressure gauge, and the reading of the pressure gauge is not more than 0.6MPa when the circulating separation system operates.
The beneficial effects of the invention are as follows: the invention has the advantages of large processing capacity, high efficiency and small occupied area; the technical process and the equipment structure are simple, and the use and the maintenance are convenient; the method has obvious effect on removing the abrasive waste residues in the water, and simultaneously, as the aeration increases the dissolved oxygen in the water, the method provides favorable conditions for the subsequent treatment; the water circulation system is provided, so that the good slag-water separation effect can be achieved, the energy is saved, and the cost is reduced.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic view of a water circulation separation system for abrasive waste according to a preferred embodiment of the present invention.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, an embodiment of the present invention includes:
a water circulation separation system for abrasive waste residues comprises a sewage tank 1, a clean water tank 2, a mixing tank 3, a dissolved air tank 4 and an air floatation tank 5.
The sewage tank 1 is communicated with the clean water tank 2 and is jointly output into the mixing tank 3, and the outlet of the mixing tank is connected with the dissolved air tank 4.
When sewage with more abrasive waste residues is treated, the sewage is diluted by clean water, and the content of the abrasive waste residues in the mixing tank 3 is reduced and then is output to the dissolved air tank 4.
The outlet of the dissolved air tank 4 is connected with a dissolved air water releaser 6, the releaser 6 is arranged in the air floatation tank 5, the air floatation tank 5 is provided with a waste residue outlet and a clear water outlet, the bottom of the tank is provided with a water collecting area 7, and a clear water circulating and refluxing system 8 is formed between the clear water outlet and the clear water tank.
The waste residue outlet can be connected to a sludge tank or sludge treatment equipment, one part of clear water outlet flows to a clear water channel through an overflow weir, then is discharged along a pipeline or enters a next treatment unit, and the other part of clear water outlet returns to a clear water tank through a clear water circulating and refluxing system 8.
The water collecting area 7 is arranged below the clear water outlet, part of water is always reserved in the air floatation tank in the water collecting area 7, the medicine adding port 9 is arranged in the water collecting area 7, and the coagulant and the flocculant are put into the air floatation tank 5 from the medicine adding port to react with residual clear water in a fusion way.
The coagulant is preferably polyaluminum chloride; the flocculant is preferably polyacrylamide.
Wherein, a heating device is arranged in the water collecting area 7 and used for accelerating the fusion of the coagulant, the flocculant and the sewage.
The sewage tank 1 is directly connected with the dissolved air tank 4, when the content of the ground waste residue in the sewage tank 1 is low, the ground waste residue can be directly sent into the dissolved air tank 4 to form dissolved air water and then output into the air floatation tank 5.
A foam scraper 10 is arranged above the air floatation tank 5. After the scum is accumulated to a certain thickness, the scum scraper 10 is started, and the scum is scraped into a sludge tank of the air flotation machine by the scum scraper 10 and then discharged to a scum channel and then discharged to the sludge tank.
The air in the dissolved air tank 4 is provided by an air compressor 12, and a ground floating ball liquid level meter in the dissolved air tank 4 controls the air compressor to be started and stopped. Because the dissolved air water continuously takes away the air in the tank, the air in the tank is gradually reduced, and the water level rises. When the water level rises to a certain position, the floating ball level gauge controls the air compressor 12 to work, so that enough air quantity exists in the tank.
The releaser 6 is a key device of the system, and has obvious influence on the size and distribution of bubble formation and on the air floatation water purification effect and the operation cost. The release efficiency of the currently adopted releaser can reach 99.2 percent. The release rule of bubbles when the dissolved air water is depressurized and energy is dissipated is different from the situation of bubbles in still water; the occurrence of large bubbles at low pressure is due to poor releaser. In addition to releasing a large number of stable microbubbles, it is critical how to prevent clogging. The selection of the dissolved gas releaser is determined according to the quality of the oily sewage, the treatment flow and the releaser performance.
Therefore, the self-cleaning system is designed on the releaser 6, and comprises a vacuumizing system and a clear water cleaning system, and when the self-cleaning system is used for cleaning, the tongue piece of the releaser is opened, and the vacuumizing system and the clear water cleaning system are opened for flushing.
When the releaser 6 is blocked, the vacuumizing valve can be opened, so that the tongue piece of the releaser is opened, the tongue piece of the releaser is automatically cleaned by clean water, the blocking object is washed, and then the valve is closed, and the valve is generally opened for only 10-20 seconds.
The dissolved air tank 4 is provided with a pressure gauge 11, and when the circulation separation system operates, the reading of the pressure gauge 11 is not more than 0.6MPa.
The working principle is as follows: opening the water outlet valve of the pool for clean water and sewage, after mixing in the mixing pool, opening the water inlet control valve of the dissolved air tank, and gradually increasing the pressure of the pressure gauge of the dissolved air tank to be generally 0.4-0.5MPa. The dissolved air tank is provided with a water outlet control valve, so that the dissolved air water is released into the air floatation tank through the releaser; at this time, the water collecting area at the bottom of the air floatation tank is filled with medicine, and the dissolved air water is mixed and contacted with the medicine, so that the floccules are adhered to the fine bubbles and then enter the air floatation area. The flocculating constituent floats to the water surface under the action of air floatation force to form scum, and the clear water at the lower layer flows back to a clear water tank or flows to a clear water channel through an overflow weir, and then is discharged along a pipeline or enters a next treatment unit. After the scum on the water surface of the air floatation tank is accumulated to a certain thickness, the scum is scraped into a sludge tank of the air floatation machine by a foam scraper and is discharged to a scum channel, and then the scum is discharged to the sludge tank.
The invention has the advantages of large processing capacity, high efficiency and small occupied area; the technical process and the equipment structure are simple, and the use and the maintenance are convenient; the method has obvious effect on removing the abrasive waste residues in the water, and simultaneously, as the aeration increases the dissolved oxygen in the water, the method provides favorable conditions for the subsequent treatment; the water circulation system is provided, so that the good slag-water separation effect can be achieved, the energy is saved, and the cost is reduced.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (5)
1. The water circulation separation system for the abrasive waste residues is characterized by comprising a sewage tank, a clean water tank, a mixing tank, a dissolved air tank and an air floatation tank, wherein the sewage tank is communicated with the clean water tank and is commonly output into the mixing tank;
opening a water outlet valve of a pool for clean water and sewage, after mixing in a mixing pool, opening a water inlet control valve of a dissolved air tank, and gradually increasing the pressure of a pressure gauge of the dissolved air tank to be generally 0.4-0.5MPa; the dissolved air tank is provided with a water outlet control valve, so that the dissolved air water is released into the air floatation tank through the releaser; a dosing port is arranged in the water collecting area, coagulant and flocculant are put into the air floatation tank from the dosing port, and the coagulant is polyaluminium chloride; the flocculant is polyacrylamide; a heating device is arranged in the water collecting area and used for accelerating the fusion of the coagulant, the flocculant and the sewage; at this time, the water collecting area at the bottom of the air floatation tank is filled with medicine, and dissolved air water is mixed and contacted with the medicine, so that floccules are adhered to the fine bubbles and then enter the air floatation area; the flocculating constituent floats to the water surface under the action of air floatation force to form scum, and the clear water at the lower layer flows back to a clear water tank through a clear water circulating and backflow system or flows to a clear water channel through an overflow weir, and is discharged along a pipeline or enters a next treatment unit; after the scum on the water surface of the air floatation tank is accumulated to a certain thickness, the scum is scraped into a sludge tank of the air floatation machine by a foam scraper and then is discharged to a scum channel, and then is discharged to the sludge tank;
the self-cleaning system comprises a vacuumizing system and a clear water cleaning system, wherein a tongue piece of the releaser is opened during cleaning, and the vacuumizing system and the clear water cleaning system are opened for flushing; when the releaser is blocked, the vacuumizing valve is opened for 10-20 seconds, so that the tongue piece of the releaser is opened, the tongue piece is automatically cleaned by clean water, the blocking object is washed, and then the vacuumizing valve is closed, so that the automatic cleaning is completed.
2. The water circulation separation system of claim 1, wherein the wastewater tank is directly connected to the dissolved air tank.
3. The water circulation separation system for abrasive waste according to claim 1, wherein a foam scraper is arranged above the air floatation tank.
4. The water circulation separation system of claim 1, wherein the gas in the dissolved air tank is provided by an air compressor, and a ground floating ball level gauge in the dissolved air tank controls the opening and closing of the air compressor.
5. The water circulation separation system for abrasive waste according to claim 1, wherein the dissolved air tank is provided with a pressure gauge, and the pressure gauge reads no more than 0.6MPa when the circulation separation system is operated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811079357.8A CN109081413B (en) | 2018-09-17 | 2018-09-17 | Water circulation separation system for waste residues of grinding materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811079357.8A CN109081413B (en) | 2018-09-17 | 2018-09-17 | Water circulation separation system for waste residues of grinding materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109081413A CN109081413A (en) | 2018-12-25 |
| CN109081413B true CN109081413B (en) | 2024-03-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811079357.8A Active CN109081413B (en) | 2018-09-17 | 2018-09-17 | Water circulation separation system for waste residues of grinding materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109081413B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453550A (en) * | 2018-12-28 | 2019-03-12 | 启明星宇节能科技股份有限公司 | Press filteration system for denitration desulfurization and dedusting product |
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| CN107055954A (en) * | 2017-03-30 | 2017-08-18 | 山东建筑大学 | A kind of charcoal circular form pool water cleaning systems and method |
| CN107244703A (en) * | 2017-07-11 | 2017-10-13 | 湖南美奕机电科技有限公司 | A kind of sealed air floatation machine |
| CN107352613A (en) * | 2017-07-12 | 2017-11-17 | 湖南美奕机电科技有限公司 | A kind of sealed dissolved gas floatator |
-
2018
- 2018-09-17 CN CN201811079357.8A patent/CN109081413B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201694863U (en) * | 2009-12-29 | 2011-01-05 | 上海亚同环保实业股份有限公司 | Integrated pressurized dissolved-air flotation device |
| CN203021328U (en) * | 2012-06-29 | 2013-06-26 | 广西宇达水处理设备工程有限公司 | Super-efficient shallow air-floatation water purification device |
| CN202881017U (en) * | 2012-09-23 | 2013-04-17 | 山东贝特尔环保科技有限公司 | Air floater |
| CN202945075U (en) * | 2012-11-12 | 2013-05-22 | 苏州东方水处理有限责任公司 | Combined air floatation device |
| CN203128240U (en) * | 2013-03-07 | 2013-08-14 | 青岛美福洋环保工程有限公司 | Horizontal-flow dissolved air flotation machine |
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| CN109081413A (en) | 2018-12-25 |
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