CN209669004U - A kind of technique waste water discharging processing device of limestone-gypsum FGD plant - Google Patents
A kind of technique waste water discharging processing device of limestone-gypsum FGD plant Download PDFInfo
- Publication number
- CN209669004U CN209669004U CN201822200827.3U CN201822200827U CN209669004U CN 209669004 U CN209669004 U CN 209669004U CN 201822200827 U CN201822200827 U CN 201822200827U CN 209669004 U CN209669004 U CN 209669004U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- centrifugal pump
- communicated
- exit
- reaction tank
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of technique waste water discharging processing devices of limestone-gypsum FGD plant, including wastewater collection pond, the wastewater collection pond is fixedly connected with the first centrifugal pump by pipeline, the exit of first centrifugal pump is communicated with the first reaction tank by pipeline fixation, the exit of first reaction tank, which is connected, the second reaction tank, the rear end of second reaction tank, which is connected, clarifying basin and buffer pool, the rear end of the buffer pool is by being connected with the second centrifugal pump and third centrifugal pump in pipeline, the exit of the third centrifugal pump is communicated with inorganic ceramic film unit by pipeline, the rear end of the inorganic ceramic film unit is communicated with production water pot by pipeline, the exit for producing water pot is communicated with the 4th centrifugal pump by pipeline.The technique waste water Zero discharge treatment method for being somebody's turn to do " lime stone-gypsum " desulfurizer substantially increases waste water treatment efficiency and effect, effectively reduces investment and operating cost.
Description
Technical field
The utility model relates to technical field of waste water processing, specially a kind of technique of limestone-gypsum FGD plant
Discharge of wastewater processing unit.
Background technique
Thermoelectricity industry generallys use " limestone-gypsum method " desulfurization technology at present, with strictly wanting for national environmental protection policy
It asks and carries out, have been developed as the mainstream technology of thermoelectricity industry at present.Such desulfurization technical treatment is high-efficient, effect is steady
Calmly, many advantages, such as operating cost is low, easy to operate.But the desulfurization wastewater generated does not have at present because of high saliferous, the characteristic of high rigidity
There is effective, suitable governing measure, this has become a great difficult problem of environmental protection industry (epi) improvement.
The processing of thermoelectricity industry desulfurization wastewater generallys use scheme and has at present: " lime stone softening+MVR mechanical vapor " technique
Route, " lime stone softening+ultrafiltration+electrodialysis+MVR mechanical vapor " process route, lime stone softening+multi-medium filtering+ultrafiltration+
RO seawater desalination reverse osmosis method+MVR mechanical vapor " process route and flue evaporation technique generally have hardness number single in softening
The problem of secondary rebound of calcium ion concentration after member is first removed using chemical agent, then during acid adding adjusting PH, and have
There is scaling, the risk that can not be run steadily in the long term, while cost of investment when running is high, land occupation is big, operating cost, processing
Effect and stability are all undesirable.
Utility model content
The purpose of this utility model is to provide a kind of technique waste water emission treatment of limestone-gypsum FGD plant dresses
It sets, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of limestone-gypsum FGD plant
Technique waste water discharging processing device, including wastewater collection pond, the wastewater collection pond are fixedly connected with the first centrifugation by pipeline
The exit of pump, first centrifugal pump is communicated with the first reaction tank, the exit of first reaction tank by pipeline fixation
Connection has the second reaction tank, and the rear end of second reaction tank, which is connected, clarifying basin and buffer pool, and the rear end of the buffer pool is logical
The second centrifugal pump and third centrifugal pump are connected in piping, the exit of the third centrifugal pump is communicated with inorganic by pipeline
The rear end of ceramic membrane unit, the inorganic ceramic film unit is communicated with production water pot by pipeline；
The exit for producing water pot is communicated with the 4th centrifugal pump by pipeline, and the exit of the 4th centrifugal pump passes through
It is communicated with cartridge filter, the exit of the cartridge filter is communicated with the 5th centrifugal pump, the 5th centrifugation by pipeline
The exit of pump is communicated with nanofiltration film unit by pipeline, is communicated at the first outlet of the nanofiltration film unit by pipeline de-
Sulphur unit slurry pool.
Preferably, the additive of first reaction tank is sodium carbonate, and the solution concentration of sodium carbonate is 10%-15%.
Preferably, the additive of second reaction tank is sodium hydroxide, concentration of sodium hydroxide solution 10%-15%.
Preferably, the water outlet of the inorganic ceramic film unit is connected to the second reaction tank and by first circulation pipeline
The entrance of three centrifugal pumps, the inlet flow rate of the second reaction tank and the flow-rate ratio of third centrifugal pump inlet are 1:9.
Preferably, buffering water pot, the buffering water pot are communicated with by pipeline at the second outlet of the nanofiltration film unit
Exit electrodialysis cell is communicated with by the 6th centrifugal pump, pass through pipeline at the first outlet of the electrodialysis cell and be connected to
There is intermediate water pot, the exit of the intermediate water pot is communicated with MVR mechanical vapor unit by the 7th centrifugal pump.
Preferably, the water outlet of the second outlet of the electrodialysis cell and MVR mechanical vapor unit passes through second circulation
Pipeline is connected to desulfurization unit slurry pool.
Preferably, the operating pressure of second centrifugal pump is 0.15-0.2MPa, and the pressure of third centrifugal pump is 0.3-
0.4MPa, and flow-rate ratio is 1:5.
Preferably, the inorganic ceramic film unit filtering accuracy is 0.1um, and structure is 19 hole tubular types, water flow inside flow velocity
For 3.5-4 metre per second (m/s).
Preferably, the filtering accuracy of the cartridge filter is 5um.
Preferably, the intake pressure of the nanofiltration film unit be 0.8-1.1MPa, 20-25 DEG C of running temperature, the electric osmose
Analyse the first outlet of unit and the flow-rate ratio 1:10 of second outlet.
Compared with prior art, the utility model has the beneficial effects that the Waste of the limestone-gypsum FGD plant
Water zero discharge processing method uses inorganic ceramic film unit, further shortens in terms of process flow, and occupied area substantially reduces, and throws
Entering that cost is relatively low, the inorganic ceramic film unit of use can prevent system jams and fouling, and system uses nanofiltration film unit, so that
Calcium ion, all calcium ions, most sulfate ion and part chloride ion are practically free of in the production water of nanofiltration membrane
In the concentrated water generated into nanofiltration membrane, concentrated water enters steam power plant's desulfurizer and carries out secondary reuse, so that the system and desulfurization fill
It sets technique water system and forms stable chloride equilibrium, producing water ratio is relatively high, and substantially overcomes dissolubility hardness number
The problem of secondary rebound, then have be exactly using alloy membrane electrodialysis, performance close to homogeneous membrane electrodialysis, ensure that it is electrodialytic most
Low investment, and byproduct is high-purity sodium chloride, device is relatively easy, substantially increases waste water treatment efficiency and effect, effectively
Reduce investment and operating cost.
Detailed description of the invention
Fig. 1 is the process flow schematic diagram of the utility model；
Fig. 2 is the preliminary treatment flow chart of the utility model.
In figure: 1 wastewater collection pond, 11 first centrifugal pumps, 12 first reaction tanks, 13 second reaction tanks, 14 clarifying basins, 15 are delayed
Rush pond, 16 second centrifugal pumps, 17 third centrifugal pumps, 18 inorganic ceramic film units, 19 production water pots, 20 the 4th centrifugal pumps, 21 security personnel
Filter, 22 the 5th centrifugal pumps, 23 nanofiltration film units, 24 desulfurization unit slurry pools, 25 first circulation pipelines, 26 buffering water pots,
27 the 6th centrifugal pumps, 28 electrodialysis cells, 29 intermediate water pots, 30 the 7th centrifugal pumps, 31MVR mechanical vapor unit, 32 second are followed
Endless tube road.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of work of limestone-gypsum FGD plant
Skill discharge of wastewater processing unit, including wastewater collection pond 1, wastewater collection pond 1 are fixedly connected with the first centrifugal pump 11 by pipeline,
The exit of first centrifugal pump 11 is communicated with the first reaction tank 12 by the way that pipeline is fixed, and the exit of the first reaction tank 12, which is connected, to be had
Second reaction tank 13, the rear end of the second reaction tank 13, which is connected, clarifying basin 14 and buffer pool 15, and the bottom of clarifying basin 14 is designed as
Pyramidal structure, and the water inside clarifying basin 14 enters buffer pool 15 by top overflow port, buffer pool 15 designs the residence time
It is 3 hours or more, the rear end of buffer pool 15 is by being connected with the second centrifugal pump 16 and third centrifugal pump 17, third centrifugation in pipeline
The exit of pump 17 is communicated with inorganic ceramic film unit 18 by pipeline, and the rear end of inorganic ceramic film unit 18 is connected to by pipeline
Have and produce water pot 19, be equipped with feed opening, hydrochloric acid can be added and carry out reaction treatment；
The exit for producing water pot 19 is communicated with the 4th centrifugal pump 20 by pipeline, and the exit of the 4th centrifugal pump 20 passes through company
It is connected with cartridge filter 21, the exit of cartridge filter 21 is communicated with the 5th centrifugal pump 22, the 4th centrifugal pump 20 by pipeline
Operating pressure is 0.3-0.4MPa, and 22 operating pressure of the 5th centrifugal pump is 0.6-0.8MPa, and the 5th centrifugal pump 22 passes through frequency conversion
It is adjusted control, the exit of the 5th centrifugal pump 22 is communicated with nanofiltration film unit 23 by pipeline, and the of nanofiltration film unit 23
One exit is communicated with desulfurization unit slurry pool 24 by pipeline.
The additive of first reaction tank 12 is sodium carbonate, and the solution concentration of sodium carbonate is 10%-15%.
The additive of second reaction tank 13 is sodium hydroxide, and the solution concentration of sodium hydroxide is 10%-15%.
The water outlet of inorganic ceramic film unit 18 by first circulation pipeline 25 be connected to the second reaction tank 13 and third from
The entrance of heart pump 17, the inlet flow rate of the second reaction tank 13 and the flow-rate ratio of 17 entrance of third centrifugal pump are 1:9.
Buffering water pot 26 is communicated with by pipeline at the second outlet of nanofiltration film unit 23, the exit of buffering water pot 26 is logical
It crosses the 6th centrifugal pump 27 and is communicated with electrodialysis cell 28, intermediate water is communicated with by pipeline at the first outlet of electrodialysis cell 28
The exit of tank 29, intermediate water pot 29 is communicated with MVR mechanical vapor unit 31 by the 7th centrifugal pump 30.
The second outlet of electrodialysis cell 28 and the water outlet of MVR mechanical vapor unit 31 are connected by second circulation pipeline 32
Pass through desulfurization unit slurry pool 24.
The operating pressure of second centrifugal pump 16 is 0.15-0.2MPa, and the pressure of third centrifugal pump 17 is 0.3-0.4MPa, and
Flow-rate ratio is 1:5.
18 filtering accuracy of inorganic ceramic film unit is 0.1um, and structure is 19 hole tubular types, and water flow inside flow velocity is 3.5-4 meters
Per second, stable structure, filter effect is good, while passing through internal structure combination reasonable flow rate, it is possible to reduce fouling blockage, safety are high
Effect.
The filtering accuracy of cartridge filter 21 is 5um, and precision is high, and filter effect is good.
The intake pressure of nanofiltration film unit 23 be 0.8-1.1MPa, 20-25 DEG C of running temperature, the first of electrodialysis cell 28
The flow-rate ratio 1:10 of outlet and second outlet.
It buffers when the utility model is specifically implemented: technique waste water is passed through inside wastewater collection pond 1, then passes through
First centrifugal pump 11 is sent into the first reaction tank 12, while sodium carbonate liquor is continuously added into the first reaction tank 12 by metering pump,
Keep calcium ion: then waste water is passed through the second reaction tank 13 by top overflow port by bicarbonate ion molar ratio=1:3,
Sodium hydroxide solution is continuously added into the second reaction tank 13 by metering pump simultaneously, adjusting pH value is 11-12, under waste water is passed through
Portion's water outlet is passed through clarifying basin 14, stands 5 hours to 6 hours, and control water outlet calcium ion is 50 milligrams per liter to 60 milligrams per liter,
Then buffering pond 15 is passed through by top overflow port, stands 3 hours to 3.5 hours, waste water is defeated by the second centrifugal pump 16
Out, and using third centrifugal pump 17 it exports, waste water is fed through inorganic ceramic film unit 18 and is filtered, it is logical to generate concentrated water
25 reflux of first circulation pipeline is crossed to the second reaction tank 13, residue crosses drainage, is mixed into hydrochloric acid and enters and produces water pot and mixed, and controls
PH value processed is 6-7, is then output to cartridge filter 21 by the 4th centrifugal pump 20 and is filtered, then passes through the 5th centrifugal pump 22
It is delivered to nanofiltration film unit 23 to be filtered, output nanofiltration concentrated water and nanofiltration produce water, and nanofiltration concentrated water is passed through desulfurization unit slurries
Pond 24 carries out secondary recovery, and the nanofiltration based on sodium chloride composition is then produced water and is sent directly into buffering water pot 26, passes through the 6th
Centrifugal pump 27 is sent into electrodialysis cell 28, and control operating pressure is 0.4-0.6MPa, generates electrodialysis concentrated water and electric osmose division water,
Electric osmose division water is sent into desulfurization unit slurry pool 24 by second circulation pipeline 32 and carries out secondary recovery, then by electrodialysis concentrated water
It is passed through intermediate water pot 29, MVR mechanical vapor unit 31 is sent into using the 7th centrifugal pump 30, what MVR mechanical vapor unit 31 generated
Condensed water is directly entered desulfurization unit slurry pool 24 by second circulation pipeline 32 and carries out secondary recovery utilization, the sodium chloride of generation
Salt carries out selling processing.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of technique waste water discharging processing device of limestone-gypsum FGD plant, including wastewater collection pond (1), special
Sign is: the wastewater collection pond (1) is fixedly connected with the first centrifugal pump (11) by pipeline, first centrifugal pump (11)
Exit is communicated with the first reaction tank (12) by pipeline fixation, the exit of first reaction tank (12) connect have it is second anti-
Ying Chi (13), the rear end of second reaction tank (13), which is connected, clarifying basin (14) and buffer pool (15), the buffer pool (15)
Rear end by being connected with the second centrifugal pump (16) and third centrifugal pump (17), the outlet of the third centrifugal pump (17) in pipeline
Place is communicated with inorganic ceramic film unit (18) by pipeline, and the rear end of the inorganic ceramic film unit (18) is communicated with by pipeline
It produces water pot (19)；
The exit for producing water pot (19) is communicated with the 4th centrifugal pump (20) by pipeline, and the 4th centrifugal pump (20) goes out
By being communicated with cartridge filter (21) at mouthful, the exit of the cartridge filter (21) is communicated with the 5th centrifugation by pipeline
It pumps (22), the exit of the 5th centrifugal pump (22) is communicated with nanofiltration film unit (23) by pipeline, the nanofiltration film unit
(23) desulfurization unit slurry pool (24) are communicated with by pipeline at first outlet.
2. a kind of technique waste water discharging processing device of limestone-gypsum FGD plant according to claim 1, special
Sign is: being communicated with buffering water pot (26), the buffering water pot by pipeline at the second outlet of the nanofiltration film unit (23)
(26) exit is communicated with electrodialysis cell (28) by the 6th centrifugal pump (27), and the first of the electrodialysis cell (28) goes out
It is communicated with intermediate water pot (29) at mouthful by pipeline, the exit of the intermediate water pot (29) is connected to by the 7th centrifugal pump (30)
There is MVR mechanical vapor unit (31).
3. a kind of technique waste water discharging processing device of limestone-gypsum FGD plant according to claim 2, special
Sign is: the second outlet of the electrodialysis cell (28) and the water outlet of MVR mechanical vapor unit (31) pass through second circulation
Pipeline (32) is connected to desulfurization unit slurry pool (24).
4. a kind of technique waste water discharging processing device of limestone-gypsum FGD plant according to claim 1, special
Sign is: the filtering accuracy of the cartridge filter (21) is 5um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822200827.3U CN209669004U (en) | 2018-12-26 | 2018-12-26 | A kind of technique waste water discharging processing device of limestone-gypsum FGD plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822200827.3U CN209669004U (en) | 2018-12-26 | 2018-12-26 | A kind of technique waste water discharging processing device of limestone-gypsum FGD plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209669004U true CN209669004U (en) | 2019-11-22 |
Family
ID=68563597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822200827.3U Active CN209669004U (en) | 2018-12-26 | 2018-12-26 | A kind of technique waste water discharging processing device of limestone-gypsum FGD plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209669004U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467256A (en) * | 2018-12-26 | 2019-03-15 | 山东蓝然环境科技有限公司 | A kind of technique waste water discharging processing device of limestone-gypsum FGD plant |
-
2018
- 2018-12-26 CN CN201822200827.3U patent/CN209669004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467256A (en) * | 2018-12-26 | 2019-03-15 | 山东蓝然环境科技有限公司 | A kind of technique waste water discharging processing device of limestone-gypsum FGD plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11046598B1 (en) | Method and system for treating high salinity water | |
| CN102838227A (en) | System and method for treating industrial park recycled water to form power plant boiler supplemental water | |
| CN106517569A (en) | Zero discharge treatment process for desulfurization wastewater | |
| CN107758962A (en) | A kind of system of the preparing magnesium sulfate from desulfurization wastewater | |
| CN108218072A (en) | Haline water alkali-making process and its device | |
| CN108423907A (en) | Haline water Zero discharge treatment method and its device | |
| CN106830437B (en) | Desulfurization wastewater reverse osmosis membrane concentration combined device and process | |
| CN109851139B (en) | High-salt wastewater softening and concentrating device and method | |
| CN209669004U (en) | A kind of technique waste water discharging processing device of limestone-gypsum FGD plant | |
| CN105502746B (en) | Sofening treatment system and method is combined in decarburization-nanofiltration to power plant circulating cooling water at a slow speed | |
| CN208234693U (en) | Haline water zero discharge treatment device | |
| RU89097U1 (en) | PLANT FOR PRODUCING SALTED WATER | |
| CN207986902U (en) | A kind of low chlorine root water source circulating water cooling tower zero blowdown processing system | |
| CN206767799U (en) | A kind of desulfurization wastewater reverse osmosis membrane concentration combination unit | |
| CN206901956U (en) | GTCC power plant wastewater zero discharge processing unit | |
| CN109467256A (en) | A kind of technique waste water discharging processing device of limestone-gypsum FGD plant | |
| CN109502871A (en) | A kind of high-salinity wastewater zero-emission and divide salt resource utilization device | |
| CN215439958U (en) | Softening system suitable for landfill leachate concentrated solution | |
| CN112850938A (en) | Reverse osmosis strong brine softening system and method | |
| CN209797625U (en) | Desulfurization and denitrification wastewater treatment device | |
| CN209890413U (en) | Waste water treatment device of sodium-alkali desulphurization system of refinery catalytic unit | |
| CN208857083U (en) | A kind of high ammonia nitrogen, high organic matter desulfurization wastewater dish tubular type film processing system | |
| CN209161720U (en) | A kind of desulfurization wastewater recycling and zero discharge system | |
| CN108529798A (en) | A kind of vibrating membrane adds preparing chlorine by electrolysis combined method desulfurization wastewater advanced treatment system | |
| CN217350844U (en) | Anti-pollution water saving system for improving water efficiency grade of water purifier and water purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |