CN111744255B - Immersed disc slurry purification device - Google Patents
Immersed disc slurry purification device Download PDFInfo
- Publication number
- CN111744255B CN111744255B CN202010706108.8A CN202010706108A CN111744255B CN 111744255 B CN111744255 B CN 111744255B CN 202010706108 A CN202010706108 A CN 202010706108A CN 111744255 B CN111744255 B CN 111744255B
- Authority
- CN
- China
- Prior art keywords
- tank
- filter
- main shaft
- disc
- slurry
- 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
- 239000002002 slurry Substances 0.000 title claims abstract description 46
- 238000000746 purification Methods 0.000 title claims description 7
- 239000004744 fabric Substances 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000007664 blowing Methods 0.000 claims abstract description 21
- 239000000706 filtrate Substances 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 238000010521 absorption reaction Methods 0.000 claims abstract description 11
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000011010 flushing procedure Methods 0.000 claims description 11
- 238000007790 scraping Methods 0.000 claims description 10
- 229910052602 gypsum Inorganic materials 0.000 claims description 8
- 239000010440 gypsum Substances 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000007654 immersion Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/15—Filters with filtering elements which move during the filtering operation with rotary plane filtering surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses an immersed disc slurry purifying device which comprises an absorption tower, a slurry tank, a vacuum pump, a gas-liquid separation tank, a clean water tank, a tank body, a main shaft, a plurality of filtrate pipes, a plurality of filter discs and a driving device for driving all the filter discs to rotate along the circumferential direction and the main shaft, wherein the main shaft is positioned in the tank body, each filter disc is of a fan-shaped structure, the filter discs are provided with inner cavities, filter cloth is sleeved on the outer walls of the filter discs, liquid in the tank body enters the inner cavities after being filtered by the filter cloth, each filter disc is sequentially distributed around the main shaft along the circumferential direction, and a blowing channel and a vacuumizing channel are arranged in the main shaft.
Description
Technical Field
The invention belongs to the technical field of energy conservation and environmental protection, and relates to an immersed disc slurry purifying device.
Background
In the wet desulfurization process of the thermal power plant, under the low-load working condition, the problem of poor water balance of a unit desulfurization system can occur, normal flushing of a demister is affected, the demister is caused to rise in resistance even block and collapse after long-term operation, and the safety of unit operation is affected.
The existing solid-liquid separation equipment of the disc dehydrator is mainly used for removing large-particle gypsum, has poor applicability of micropores of the device to low-density gypsum slurry, is extremely easy to block, and cannot be suitable for extracting filtering liquid of the low-density gypsum slurry.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an immersed disc slurry purifying device which can realize concentration filtration of low-density slurry and is not easy to block.
In order to achieve the above purpose, the immersed disc slurry purifying device of the invention comprises an absorption tower, a slurry tank, a vacuum pump, a gas-liquid separation tank, a clean water tank, a tank body, a main shaft positioned in the tank body, a plurality of filtrate pipes, a plurality of filter discs and a driving device for driving all the filter discs to rotate along the circumferential direction and the main shaft to rotate;
Each filter disc is of a fan-shaped structure, the outer wall of each filter disc is provided with an inner cavity, filter cloth is sleeved on the outer wall of each filter disc, liquid in the groove body enters the inner cavity after being filtered by the filter cloth, each filter disc is sequentially distributed around the main shaft along the circumferential direction, a blowing channel and a vacuumizing channel are arranged in the main shaft, wherein a vacuumizing port is arranged at the bottom of the side surface of the main shaft, a blowing port is arranged at the top of the side surface of the main shaft, one filter disc corresponds to one filtrate pipe, one end of the filtrate pipe is connected with the inner cavity of the filter disc, and the other end of the filtrate pipe is alternately in butt joint communication with the blowing port and the vacuumizing port in the rotating process of each filter disc;
one end of the air blowing channel is communicated with the air blowing port, and the other end of the air blowing channel is communicated with the air storage tank;
one end of the vacuumizing channel is communicated with the vacuumizing port, the other end of the vacuumizing channel is communicated with the inlet of the gas-liquid separation tank, the inlet of the vacuum pump is communicated with the gas outlet of the gas-liquid separation tank, and the liquid outlet of the gas-liquid separation tank is communicated with the clear water tank;
The outlet of the absorption tower is communicated with the water injection port of the tank body, and the inlet of the slurry tank is communicated with the discharge port at the bottom of the tank body;
An ultrasonic cleaning device and a scraping plate for scraping gypsum particles on the filter cloth are arranged in the tank body, and the filter discs sequentially pass through the scraping plate and the ultrasonic cleaning device in the rotation process;
The scraping plate and the ultrasonic cleaning device are both positioned above the main shaft, and the filter disc sequentially passes through the scraping plate and the ultrasonic cleaning device in the rotating process.
The high-pressure water supply system is arranged in the tank body, and the high-pressure flushing nozzle is arranged in the tank body, wherein an outlet of the high-pressure water supply system is communicated with an inlet of the high-pressure flushing nozzle.
The outlet of the slurry tank is communicated with the inlet of the absorption tower.
The buffer tank is communicated with the tank body through a slurry supply pump.
The invention has the following beneficial effects:
When the immersed disc slurry purification device disclosed by the invention is specifically operated, slurry output by the absorption tower enters the buffer box and is output into the tank body through the slurry supply pump, each filter disc is positioned in the slurry, the slurry is filtered by the filter cloth and then enters the inner cavity of the filter disc, each filter disc rotates to the lower part of the main shaft in the rotating process, the vacuumizing port is in butt joint communication with the filtrate pipe, at the moment, the slurry filtered in the filter disc is pumped through the vacuum pump, then is separated through the gas-liquid separation tank, the separated liquid enters the clean water tank to realize the concentration filtration of the low-density slurry, in the process, the slurry on the filter cloth is emptied through the scraping plate and the ultrasonic cleaning device, the filter cloth is washed through compressed air from inside to outside after the concentration of the gypsum rises to 1150kg/m 3, and the outside of the filter cloth is washed through high-pressure water, so that the filter cloth is prevented from being blocked.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a view showing the installation positions of the squeegee 7 and the high-pressure flushing nozzle 9 in the present invention.
Wherein 1 is a buffer tank, 2 is a water filling port, 3 is a tank body, 4 is a main shaft, 5 is a filtering disc, 6 is a vacuumizing port, 7 is a scraping plate, 8 is an ultrasonic cleaning device, 9 is a high-pressure flushing nozzle, 10 is an overflow port, 11 is a discharge port, 12 is a slurry tank, 13 is a vacuum pump, 14 is a gas-liquid separation tank, 15 is a clean water tank, 16 is an air storage tank, and 17 is an air blowing port.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures:
Referring to fig. 1 and 2, the immersed disc slurry purifying device of the present invention comprises an absorption tower, a slurry tank 12, a vacuum pump 13, a gas-liquid separation tank 14, a clean water tank 15, a tank body 3, a main shaft 4 positioned in the tank body 3, a plurality of filtrate pipes, a plurality of filter discs 5, and a driving device for driving all the filter discs to rotate along the circumferential direction and the main shaft 4 to rotate; each filter disc 5 is of a fan-shaped structure, the filter disc 5 is provided with an inner cavity, the outer wall of the filter disc 5 is sleeved with filter cloth, liquid in the tank body 3 enters the inner cavity after being filtered by the filter cloth, each filter disc 5 is sequentially distributed around the main shaft 4 along the circumferential direction, a blowing channel and a vacuumizing channel are arranged in the main shaft 4, wherein the bottom of the side surface of the main shaft 4 is provided with the vacuumizing port 6, the top of the side surface of the main shaft 4 is provided with the blowing port 17, one filter disc 5 corresponds to a filtrate pipe, one end of the filtrate pipe is connected with the inner cavity of the filter disc 5, one end of the filtrate pipe is communicated with the blowing port 17 and the vacuumizing port 6 in an alternating butt joint manner in the rotating process of each filter disc 5, one end of the blowing channel is communicated with the blowing port 17, the other end of the blowing channel is communicated with the air storage tank 16, one end of the vacuumizing channel is communicated with the vacuumizing port 6, the other end of the vacuumizing channel is communicated with the inlet of the gas-liquid separation tank 14, the inlet of the vacuum pump 13 is communicated with the gas outlet of the gas-liquid separation tank 14, the liquid outlet of the gas-liquid separation tank 14 is communicated with the liquid outlet of the water tank 15, one end of the filtrate pipe is communicated with the outlet of the suction tank 3 is communicated with the inlet of the filter cloth 3, the filter cloth 3 is communicated with the inlet 7 of the filter cloth 3 is communicated with the inlet of the filter cloth 3 and the filter cloth is communicated with the inlet 7 of the tank 3, the filter disc 5 passes through the scraping plate 7 and the ultrasonic cleaning device in turn in the rotating process.
The invention further comprises a high-pressure water supply system and a high-pressure flushing nozzle 9 arranged in the tank body 3, wherein an outlet of the high-pressure water supply system is communicated with an inlet of the high-pressure flushing nozzle 9, an outlet of a slurry tank 12 is communicated with an inlet of an absorption tower, and the buffer tank 1 is communicated with the tank body 3 through a slurry supply pump.
The specific operation process of the invention is as follows:
the slurry output by the absorption tower enters the buffer box 1 and then is output into the tank body 3 through the slurry supply pump, each filter disc 5 is positioned in the slurry, the slurry is filtered by the filter cloth and then enters the inner cavity of the filter disc, and the filter cloth is superfine filter cloth, so that the solid content of the slurry filtered by the filter cloth meets the standard requirement of demister flushing water (total suspended solid is <1000 mg/L). In the rotation process of each filter disc 5, the filter disc 5 rotates to the lower part of the main shaft 4, the vacuumizing port 6 is in butt joint communication with the filtrate pipe, at the moment, the slurry filtered in the filter disc 5 is pumped through the vacuum pump 13, then the slurry is separated through the gas-liquid separation tank 14, the separated liquid enters the clear water tank 15, the separated gas enters the vacuum pump 13, and when passing through the upper part of the main shaft 4, gypsum particles on the filter cloth are scraped through the scraping plate 7 firstly, and then ultrasonic cleaning is carried out through the ultrasonic cleaning device 8;
When the gypsum concentration rises to 1150kg/m 3, and the filter cloth is required to be cleaned for the second time, the slurry in the tank body 3 is emptied to the slurry tank 12, so that the slurry in the tank body 3 is emptied, the air storage tank 16 is started, the main shaft 4 rotates, when the filtrate pipe is communicated with the air blowing port 17 in an aligned manner, the filter cloth is purged from inside to outside through compressed air in the air storage tank 16, and simultaneously, the filter cloth is flushed through high-pressure water sprayed out by the high-pressure flushing nozzle 9, so that the secondary deep cleaning of the filter cloth is realized, the cleaning of residual fine particles in the filter cloth is ensured, and the superfine filter cloth is prevented from being blocked.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010706108.8A CN111744255B (en) | 2020-07-21 | 2020-07-21 | Immersed disc slurry purification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010706108.8A CN111744255B (en) | 2020-07-21 | 2020-07-21 | Immersed disc slurry purification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111744255A CN111744255A (en) | 2020-10-09 |
| CN111744255B true CN111744255B (en) | 2025-01-24 |
Family
ID=72710788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010706108.8A Active CN111744255B (en) | 2020-07-21 | 2020-07-21 | Immersed disc slurry purification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111744255B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113501538B (en) * | 2021-07-31 | 2022-12-27 | 华能秦煤瑞金发电有限责任公司 | Gypsum dehydration edulcoration device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212396085U (en) * | 2020-07-21 | 2021-01-26 | 西安西热锅炉环保工程有限公司 | Immersion disc slurry purifying device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3735977B2 (en) * | 1996-10-29 | 2006-01-18 | 千代田化工建設株式会社 | Flue gas desulfurization equipment |
| JP5629034B1 (en) * | 2014-07-18 | 2014-11-19 | 三協技研工業株式会社 | Solid-liquid separation device and solid-liquid separation method |
| CN105749606B (en) * | 2016-05-06 | 2018-08-24 | 无锡市同至人机械设备制造有限公司 | Efficient disk filter cloth dewaterer |
| CN205886368U (en) * | 2016-06-20 | 2017-01-18 | 高惠东 | Disk filter's filter cake thickness restraining device |
-
2020
- 2020-07-21 CN CN202010706108.8A patent/CN111744255B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212396085U (en) * | 2020-07-21 | 2021-01-26 | 西安西热锅炉环保工程有限公司 | Immersion disc slurry purifying device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111744255A (en) | 2020-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204193620U (en) | A fully automatic self-cleaning filter | |
| CN106512518A (en) | Pipeline of automatic cleaning filter | |
| CN102430276B (en) | Wet flue gas desulfurization gypsum dehydrator | |
| CN209771539U (en) | Pneumatic pulse backwashing sewage treatment equipment | |
| CN211419791U (en) | Preliminary treatment device for sewage recovery | |
| CN205948470U (en) | Sewage filtering device | |
| CN212396085U (en) | Immersion disc slurry purifying device | |
| CN207761700U (en) | A kind of rotary mine dedusting equipment of wind-guiding discharge dust | |
| CN208493431U (en) | Mixing wastewater with air backwash automatic cleaning lamination filter | |
| CN111744255A (en) | An immersed disc slurry purification device | |
| CN202010458U (en) | Fiber ball filtering tank | |
| CN208591608U (en) | A fiber turntable filter | |
| CN219363424U (en) | Water treatment equipment with multistage purification function | |
| CN110902865A (en) | Sewage processor for well drilling | |
| CN206027204U (en) | Novel full -automatic basket filter | |
| CN117466357A (en) | A water treatment tank and water treatment method | |
| CN209548910U (en) | A Mud Reduction System for Intelligent Cleaning of Movable Blockage | |
| CN107080997A (en) | A kind of filter | |
| CN201154256Y (en) | Refrigeration station cyclone filter | |
| CN219308082U (en) | Slag discharging device of candle filter | |
| CN208049500U (en) | A kind of Multifunction automatic cleaning filter | |
| CN221797135U (en) | Filter tank sweeping device | |
| CN115671814A (en) | Trigger type backwashing automatic sewage discharge device and automatic cleaning automatic sewage discharge method | |
| CN219209367U (en) | Dust removal filtering throwing barrel | |
| CN215654060U (en) | A kind of construction engineering water treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |