CN111744255A - Immersion disc slurry purifying device - Google Patents
Immersion disc slurry purifying device Download PDFInfo
- Publication number
- CN111744255A CN111744255A CN202010706108.8A CN202010706108A CN111744255A CN 111744255 A CN111744255 A CN 111744255A CN 202010706108 A CN202010706108 A CN 202010706108A CN 111744255 A CN111744255 A CN 111744255A
- Authority
- CN
- China
- Prior art keywords
- tank
- disc
- communicated
- main shaft
- filter
- 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.)
- Pending
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 48
- 238000007654 immersion Methods 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000004744 fabric Substances 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000007664 blowing Methods 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 14
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 239000000706 filtrate Substances 0.000 claims abstract description 6
- 238000004506 ultrasonic cleaning Methods 0.000 claims description 16
- 229910052602 gypsum Inorganic materials 0.000 claims description 10
- 239000010440 gypsum Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 10
- 238000007790 scraping Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 210000005056 cell body Anatomy 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003546 flue gas 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
Images
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
Abstract
The invention discloses an immersion type disc slurry purifying device which comprises an absorption tower, a slurry tank, a vacuum pump, a gas-liquid separation tank, a clear water tank, a tank body, a main shaft, a plurality of filtrate pipes, a plurality of filter discs and a driving device, wherein the main shaft, the plurality of filtrate pipes, the plurality of filter discs and the driving device are positioned in the tank body; each filter disc is fan-shaped structure, and the filter disc is provided with the inner chamber, has cup jointed the filter cloth on the outer wall of filter disc, and the liquid in the cell body enters into the inner chamber after the filter cloth filters, and each filter disc distributes around the main shaft along circumference in proper order, is provided with air-blowing channel and evacuation passageway in the main shaft, and the device can realize the concentration filtration of low density thick liquid, and difficult jam.
Description
Technical Field
The invention belongs to the technical field of energy conservation and environmental protection, and relates to an immersion type disc slurry purifying device.
Background
In the wet flue gas desulfurization technology of thermal power plant, under the low-load operating mode, the not good problem of water balance probably appears in unit desulfurization system, influences the defroster and normally washes, and long-term operation leads to the defroster resistance to rise and even blocks up and collapses, influences the security of unit operation.
The solid-liquid separation equipment of the existing disc dehydrator is mainly used for removing large-particle gypsum, the micropores of the device have poor applicability to low-density gypsum slurry, and the device is very easy to block and cannot be suitable for filtering liquid extraction of the low-density gypsum slurry.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a submerged disc slurry purification device which can realize concentration and filtration of low-density slurry and is not easy to block.
In order to achieve the purpose, the immersed disc slurry purifying device comprises an absorption tower, a slurry tank, a vacuum pump, a gas-liquid separation tank, a clear water tank, a tank body, a main shaft, a plurality of filtrate pipes, a plurality of filter discs and a driving device, wherein the main shaft, the plurality of filtrate pipes, the plurality of filter discs and the driving device are positioned in the tank body;
each filter disc is of a fan-shaped structure and is provided with an inner cavity, filter cloth is sleeved on the outer wall of each filter disc, liquid in the tank 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, an air blowing channel and a vacuum pumping channel are arranged in the main shaft, a vacuum pumping port is arranged at the bottom of the side face of the main shaft, an air blowing port is arranged at the top of the side face of the main shaft, one filter disc corresponds to one filter liquid pipe, one end of each filter liquid pipe is connected with the inner cavity of each filter disc, and the other end of each filter liquid pipe is alternatively butted and communicated with the air blowing port and the vacuum pumping port in the rotating;
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 an inlet of the gas-liquid separation tank, an inlet of the vacuum pump is communicated with a gas outlet of the gas-liquid separation tank, and a liquid outlet of the gas-liquid separation tank is communicated with the clean 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 scraper for scraping off gypsum particles on the filter cloth are arranged in the tank body, and the filter disc sequentially passes through the scraper and the ultrasonic cleaning device in the rotating 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 device also comprises a high-pressure water supply system and a high-pressure washing nozzle arranged in the tank body, wherein the outlet of the high-pressure water supply system is communicated with the inlet of the high-pressure washing 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 submerged disc slurry purifying device is in specific operation, slurry output by an absorption tower enters a buffer tank and then is output to a tank body through a slurry supply pump, each filter disc is positioned in the slurry, the slurry is filtered by filter cloth and then enters an inner cavity of each filter disc, each filter disc rotates to the position below a main shaft in the rotating process, a vacuumizing opening is in butt joint communication with a filter liquid pipe, at the moment, the slurry filtered in each filter disc is sucked through the vacuum pump, then is separated by a gas-liquid separation tank, and the separated liquid enters a clear water tank to realize concentration and filtration of low-density slurry, in the process, gypsum particles on the filter cloth are removed through a scraper and an ultrasonic cleaning device, and when the gypsum concentration is increased to 1150kg/m3And then, emptying the slurry in the tank body, washing the filter cloth from inside to outside through compressed air, and washing the outside of the filter cloth through high-pressure water so as to avoid the filter cloth from being blocked.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a view showing the installation positions of the squeegee 7 and the high-pressure washing nozzle 9 according to the present invention.
Wherein, 1 is a buffer tank, 2 is a water injection port, 3 is a tank body, 4 is a main shaft, 5 is a filter disc, 6 is a vacuum pumping port, 7 is a scraper, 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 clear water tank, 16 is a gas storage tank, and 17 is a blowing port.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 and 2, the submerged disc slurry purifying apparatus of the present invention includes an absorption tower, a slurry tank 12, a vacuum pump 13, a gas-liquid separation tank 14, a clean water tank 15, a tank 3, a main shaft 4 located in the tank 3, a plurality of filtrate pipes, a plurality of filter discs 5, and a driving device for driving all the filter discs to rotate in a circumferential direction and the main shaft 4 to rotate; each filter disc 5 is of a fan-shaped structure, the filter discs 5 are provided with inner cavities, filter cloth is sleeved on the outer walls of the filter discs 5, liquid in the tank body 3 enters the inner cavities after being filtered by the filter cloth, each filter disc 5 is sequentially distributed around the main shaft 4 along the circumferential direction, an air blowing channel and a vacuum pumping channel are arranged in the main shaft 4, a vacuum pumping port 6 is arranged at the bottom of the side surface of the main shaft 4, an air blowing port 17 is arranged at the top of the side surface of the main shaft 4, one filter disc 5 corresponds to one filter liquid pipe, one end of each filter liquid pipe is connected with the inner cavity of the filter disc 5, and the other end of each filter liquid pipe is alternatively butted and communicated with the air blowing port 17 and the vacuum pumping port 6 in the rotating; one end of the blowing channel is communicated with the blowing port 17, and 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 an inlet of a gas-liquid separating tank 14, an inlet of a vacuum pump 13 is communicated with a gas outlet of the gas-liquid separating tank 14, and a liquid outlet of the gas-liquid separating tank 14 is communicated with a clean water tank 15; the outlet of the absorption tower is communicated with the water injection port 2 of the tank body 3, and the inlet of the slurry tank 12 is communicated with the discharge port 11 at the bottom of the tank body 3; an ultrasonic cleaning device 8 and a scraper 7 for scraping off gypsum particles on the filter cloth are arranged in the tank body 3, and the filter disc 5 sequentially passes through the scraper 7 and the ultrasonic cleaning device in the rotating process.
The scraping plate 7 and the ultrasonic cleaning device 8 are both positioned above the main shaft, and the filter disc 5 sequentially passes through the scraping plate 7 and the ultrasonic cleaning device 8 in the rotating process; the invention also comprises a high-pressure water supply system and a high-pressure washing nozzle 9 arranged in the groove body 3, wherein the outlet of the high-pressure water supply system is communicated with the inlet of the high-pressure washing nozzle 9; the outlet of the slurry tank 12 is communicated with the inlet of the absorption tower; 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 tank 1 and then is output to 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 as to ensure that the solid content of the slurry filtered by the filter cloth meets the standard requirement of the flushing water of the demister (the total suspended solid is less than 1000 mg/L). In the rotation process of each filter disc 5, the filter disc 5 rotates to the lower part of a main shaft 4, a vacuumizing port 6 is in butt joint communication with a filter liquid pipe, at the moment, slurry filtered in the filter disc 5 is sucked through the work of a vacuum pump 13, then the slurry is separated through a gas-liquid separation tank 14, the separated liquid enters a clear water tank 15, the separated gas enters the vacuum pump 13, when the slurry passes through the upper part of the main shaft 4, gypsum particles on filter cloth are scraped through a scraper 7, and then ultrasonic cleaning is carried out through an ultrasonic cleaning device 8;
when the gypsum concentration is increased to 1150kg/m3Afterwards, when the filter cloth needs to be cleaned for the second time, the slurry in the tank body 3 is emptied to the slurry tank 12, the slurry in the tank body 3 is emptied, the air storage tank 16 is opened, the main shaft 4 rotates, when the filter liquor pipe is aligned and communicated with the air blowing port 17, the filter cloth is swept from inside to outside through compressed air in the air storage tank 16, and meanwhile, the filter cloth is washed through high-pressure water sprayed by the high-pressure washing nozzle 9, so that the secondary deep cleaning of the filter cloth is realized, the removal of residual fine particles in the filter cloth is ensured, and the blockage of superfine filter cloth is prevented.
Claims (5)
1. An immersion disc slurry purification device is characterized by comprising an absorption tower, a slurry tank (12), a vacuum pump (13), a gas-liquid separation tank (14), a clear 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 driving the main shaft (4) to rotate;
each filtering disc (5) is of a fan-shaped structure, the filtering discs (5) are provided with inner cavities, filter cloth is sleeved on the outer wall of each filtering disc (5), liquid in the groove body (3) enters the inner cavities after being filtered by the filter cloth, each filtering disc (5) is sequentially distributed around the main shaft (4) along the circumferential direction, an air blowing channel and a vacuum pumping channel are arranged in the main shaft (4), a vacuum pumping port (6) is formed in the bottom of the side face of the main shaft (4), an air blowing port (17) is formed in the top of the side face of the main shaft (4), one filtering disc (5) corresponds to one filtering pipe, one end of each filtering pipe is connected with the inner cavity of the filtering disc (5), and the other end of each filtering pipe is alternatively communicated with the air blowing port (17) and the vacuum pumping port (6) in a butt joint mode in the rotating process of each filtering;
one end of the blowing channel is communicated with the blowing port (17), and 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 an inlet of a gas-liquid separation tank (14), an inlet of a vacuum pump (13) is communicated with a gas outlet of the gas-liquid separation tank (14), and a liquid outlet of the gas-liquid separation tank (14) is communicated with a clear water tank (15);
the outlet of the absorption tower is communicated with the water filling port (2) of the tank body (3), and the inlet of the slurry tank (12) is communicated with the discharge port (11) at the bottom of the tank body (3);
an ultrasonic cleaning device (8) and a scraper (7) used for scraping off gypsum particles on the filter cloth are arranged in the groove body (3), and the filter disc (5) sequentially passes through the scraper (7) and the ultrasonic cleaning device in the rotating process.
2. A submerged disc slurry purification apparatus according to claim 1, characterized in that the scraper (7) and the ultrasonic cleaning device (8) are located above the main shaft, and the filter disc (5) passes the scraper (7) and the ultrasonic cleaning device (8) in sequence during rotation.
3. The immersion disc slurry purification apparatus according to claim 1, further comprising a high pressure water supply system and a high pressure washing nozzle (9) disposed in the tank body (3), wherein an outlet of the high pressure water supply system is communicated with an inlet of the high pressure washing nozzle (9).
4. Submerged disc slurry purification apparatus according to claim 1, characterized in that the outlet of the slurry tank (12) communicates with the inlet of the absorption tower.
5. Immersion disc slurry purification apparatus according to claim 1, wherein the buffer tank (1) is in communication with the tank (3) via a slurry supply pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010706108.8A CN111744255A (en) | 2020-07-21 | 2020-07-21 | Immersion disc slurry purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010706108.8A CN111744255A (en) | 2020-07-21 | 2020-07-21 | Immersion disc slurry purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111744255A true CN111744255A (en) | 2020-10-09 |
Family
ID=72710788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010706108.8A Pending CN111744255A (en) | 2020-07-21 | 2020-07-21 | Immersion disc slurry purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111744255A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113501538A (en) * | 2021-07-31 | 2021-10-15 | 华能秦煤瑞金发电有限责任公司 | Gypsum dehydration edulcoration device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10128054A (en) * | 1996-10-29 | 1998-05-19 | Chiyoda Corp | Flue gas desulfurizer |
| 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 |
| CN105749606A (en) * | 2016-05-06 | 2016-07-13 | 无锡市同至人机械设备制造有限公司 | Efficient disc filter cloth dehydrator |
| CN205886368U (en) * | 2016-06-20 | 2017-01-18 | 高惠东 | Disk filter's filter cake thickness restraining device |
| 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 |
-
2020
- 2020-07-21 CN CN202010706108.8A patent/CN111744255A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10128054A (en) * | 1996-10-29 | 1998-05-19 | Chiyoda Corp | Flue gas desulfurizer |
| 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 |
| CN105749606A (en) * | 2016-05-06 | 2016-07-13 | 无锡市同至人机械设备制造有限公司 | Efficient disc filter cloth dehydrator |
| CN205886368U (en) * | 2016-06-20 | 2017-01-18 | 高惠东 | Disk filter's filter cake thickness restraining device |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113501538A (en) * | 2021-07-31 | 2021-10-15 | 华能秦煤瑞金发电有限责任公司 | Gypsum dehydration edulcoration device |
| 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 |
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