CN202605808U - Cyclone grit chamber - Google Patents
Cyclone grit chamber Download PDFInfo
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- CN202605808U CN202605808U CN 201220258108 CN201220258108U CN202605808U CN 202605808 U CN202605808 U CN 202605808U CN 201220258108 CN201220258108 CN 201220258108 CN 201220258108 U CN201220258108 U CN 201220258108U CN 202605808 U CN202605808 U CN 202605808U
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- grit chamber
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Abstract
The utility model relates to a cyclone grit chamber which comprises a water inflowing canal, a pool, and a water outflowing canal. An entrance of the pool is connected with the water inflowing canal, and an exit of the pool is connected with the water outflowing canal. Impellers are arranged on the bottom of the pool, and a grit-collecting hopper is arranged below the center of the bottom of the pool. The pool is connected with a grit-water separator, and under the effect of a drive motor, the impellers rotate. The cyclone grit chamber can greatly improve the removal rate of pollutants and can reduce standing time of waterpower.
Description
Technical field
The utility model relates to the pulp water processing technology field, particularly relates to a kind of rotational flow grit chamber, and the pulp water that this rotational flow grit chamber mainly is used in the fine coal air-flow bed coal-gasification process is handled.
Background technology
Present domestic coal gasifying process mainly is divided into coal water slurry gasification and dried coal powder gasifies two kinds, is representative with Texaco's stove and hydrogenation furnace etc. respectively.The prior art of two kinds of technologies aspect the pulp water processing is basic identical, so do the background technology introduction with the pulp water treatment technology in Texaco's technology.Texaco gasification pulp water system comprises usage on black water and buck circulation.Heisui River is the water that gasification furnace, scrubbing tower or water scrubber, hot-water tower remove flash distillation plant.Buck is the clear water after the clarifying treatment of Heisui River.Normally whether the pulp water system moves, and can directly have influence on whole system long-term safety stable operation.
The domestic Texaco of cover more than ten Coal-water Slurry Pressurized Gasification Unit that has; Its pulp water treatment technology also is similar: wash the high temperature Heisui River decompression back entering high pressure flash vessel that tower is discharged from gasification furnace and carbon; Flash off the synthesis gas of most of dissolving; The gases at high pressure that high pressure flash vessel flashes off reclaim after the heat through grey water heater, through the gas-liquid separator separates condensate liquid, get into the conversion section stripper then.About 120 ℃ of the low-pressure gas temperature that dust-laden liquid flashes off through low pressure flash vessel is more directly delivered to the scrubbing tower feeder trough and is made the deoxidation thermal source.Pass through vacuum flashing again, the gas that vacuum flashing goes out is extracted the entering separator out by steam jet pump and vavuum pump after the vacuum flashing condenser condenses, gas emptying, and condensed water can be used as system water.Pulp water is concentrated the back and is got into defecator, adds flocculant in the water and makes it quicken deposition.Defecator top clear water overflow to grey tank is pumped to the scrubbing tower feeder trough by buck, and a small amount of buck is discharged into Waste Water Treatment.The thin slag slurry of defecator bottom is extracted out through pump and is sent to the filter feeder trough, and by delivering to the vacuum filter dehydration after the pressurization of filter feed pump, a blob of slag is transported outside the factory by automobile.
Using the twice flash distillation to handle CO, the CO that dissolves in the removal pulp water in the said method
2And NH
3Behind gas, adopt simple gravitational settling mode to remove the solid in the pulp water.This kind gravitational settling mode rate of settling receives the influence of solid particle physical property matter, and the rate of settling is less usually.Simultaneously, the clearance of solid particle is also relatively low.In order to improve handling rate, must add a large amount of flocculants, cause processing cost to increase.Though the water quality requirement to recycle-waters such as system cools water in the coal gasification processing procedure is very not strict; But still be necessary water treatment; Particularly the technology that step adopted such as solid particle removal is improved; Improve pollutant (being mainly solid particle) clearance in the pulp water to reach, accelerate sedimentation and remove speed, and the purpose that reduces cost as far as possible.
Prior art is being carried out simple gravitational settling realization Separation of Solid and Liquid through the main defecator that uses after the flash distillation; Its major defect is that this kind gravitational settling mode receives the affect trait of solid particle in pulp water physical property and the pulp water bigger; Particularly finely ground particle substance forms superposed layer easily in water; Cause clearance lower, solid-liquid separation effect is undesirable, thus the ash water recycling after the influence.
The utility model content
The utility model technical problem to be solved provides a kind of rotational flow grit chamber, can significantly improve the clearance of pollutant and reduce hydraulic detention time.
The utility model solves the technical scheme that its technical problem adopted: a kind of rotational flow grit chamber is provided, comprises inlet channel, pond and go out water channel, the inlet in said pond links to each other with inlet channel, the outlet in said pond with go out water channel and link to each other; Said basin bottom is provided with impeller; Said basin bottom central lower is provided with sand collecting hopper, and said pond also links to each other with grit water separator, and said impeller rotates under the effect of drive motors.
The gradient of said inlet channel is 0.02-0.08.
The gradient of said inlet channel is 0.042-0.064.
Said inlet channel links to each other with the inlet in pond with said pond tangential direction.
Said drive motors is arranged on the top in said pond.
Also be provided with decelerator on the output shaft of said drive motors.
Said grit water separator links to each other with the sediment outflow pump through pipeline.
Beneficial effect
Owing to adopted above-mentioned technical scheme, the utility model compared with prior art has following advantage and good effect:
Impeller-driven in the rotational flow grit chamber of the utility model only needs the very motor of fraction horsepower, and turbine pump and dewater unit that Chi Ding installs just just move in the sediment outflow process, and only need nearly 1 hour every day, compares with traditional setting pot, can save the energy about 94%.Rotational flow grit chamber has only used impeller, does not have bearing under water, is prone to parts frayed or that stop up and moves under water.The drive unit of rotational flow grit chamber, oil site and bearing all more than the water surface of top, pond, are convenient to safeguard.The sand grains of accumulation is installed by the top and the pump of anhydrous moving component down promotes, and unique maintenance is to carry out not too frequent motor to lubricate.In a word, the equipment that not only need safeguard is few, and does not have frayed parts basically, and from long-range operation, its maintenance cost is seldom.
Description of drawings
Fig. 1 is the structure schematic top plan view of the utility model;
Fig. 2 is the structure schematic side view of the utility model;
Fig. 3 is the structural representation that pulp water is handled in the fine coal air-flow bed coal-gasification process.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiment only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
The embodiment of the utility model relates to a kind of rotational flow grit chamber, and is as depicted in figs. 1 and 2, comprises inlet channel 1, pond 2 and goes out water channel 3, and the inlet in said pond 2 links to each other with inlet channel 1, the outlet in said pond 2 with go out water channel 3 and link to each other; 2 bottoms, said pond are provided with impeller 4; Said pond 2 bottom centre below is provided with sand collecting hopper 5, and said pond 2 also links to each other with grit water separator 6, and said impeller 4 rotates under the effect of drive motors 7.
Rotational flow grit chamber then adopts vortex principle to reach the purpose of sand fallout.Wherein, Inlet channel links to each other with rotational flow grit chamber with the rotational flow grit chamber tangential direction, and so current can pass through the inlet channel tangential and flow into rotational flow grit chamber, form the plane rotational flow along wall; Sand grains is then because centrifugal action is split into pool wall in the water; And attach wall and utilize gravity to sink at the bottom of the pond, the vertical circulation that is caused by deflector and impeller is again pushed the center sand collecting hopper to, reaches the purpose of Separation of Solid and Liquid.Be not difficult to find, adopt the gravity settling basin that generally uses in rotational flow grit chamber and the prior art to compare following advantage, the rotational flow grit chamber compact conformation, floor space is little, and equipment investment is few; Rational in infrastructure, maintenance rate is low, and energy consumption is little, and Operation, Administration and Maintenance is convenient; The equipment corrosion resistance is strong, long service life; Technology arrangement is flexible, is easy to form a complete set of, and adapts to engineering different times segmentation construction needs.
Adopt rotational flow grit chamber and gravity settling basin relatively to see table 1 for the removal efficient of different-grain diameter sand grains:
| Sand grains diameter (mm) | 0.35 | 0.25 | 0.20 | 0.15 | 0.10 |
| Sediment by rotational flow desanding efficiency (%) | 98 | 95 | 92 | 90 | 78 |
| Sediment by aeration desanding efficiency (%) | 90 | 75 | 92 | 37 | 0 |
Table 1
It is thus clear that rotational flow grit chamber more efficient aspect the desanding efficiency and average, all compares good to various particle diameter sand grains clearances than traditional setting pot.
The workflow that pulp water is handled in the fine coal air-flow bed coal-gasification process is following: as shown in Figure 3; After the pulp water experience twice flash distillation operation; Get into water inlet pipe 10 through pipeline, get into swash plate tube settler 11 from the bottom, the swash plate inclined tube in the swash plate tube settler 11 is installed as suitable for 45 ° ~ 60 ° with the inclination angle; The caliber 25-35mm of inclined tube, length is not less than 50cm.The swash plate inclined tube of flowing through on the current direction, flow velocity 8-14mm/s, the downward sedimentation of particle falls into sand hopper at last in the water.Supernatant liquor is through the inlet channel 1 of effluent weir entering rotational flow grit chamber, and water velocity is generally 1.0m/s, and the gradient of inlet channel 1 is 0.02-0.08, and wherein, 0.042-0.064 is the optimum gradient scope, and the gradient of inlet channel 1 and the relation of removing between the sand coarse aggregate ratio are seen table 2.Current get in the pond 2 along the pool wall tangential direction of rotational flow grit chamber, under impeller 4 effects, form eddy current.Generally inward turning takes two turns current in the pond, stops about 1min.Because centrifugal action, sand grains is affixed to pool wall in the water, and at the bottom of dropping to the pond along pool wall.Impeller 4 stirs current and forms vertical circulation, and the sand grains motion in the sand collecting hopper 5 of rotational flow grit chamber bottom centre below at the bottom of the pond is sunk in promotion, finally falls into sand collecting hopper 5.Impeller 4 is driven by the drive motors that is arranged on the top, pond 7, and the output shaft of drive motors 7 links to each other with decelerator 8, decelerator 8 its running statuses of control.Supernatant flow to outlet pipe along going out water channel 3 in the rotational flow grit chamber, finally flows to grey tank.Grit water separator 6 links to each other with sediment outflow pump 9 through pipeline, and the sediment outflow pump is opened 3-4 time for 9 every days, and about at every turn 10-15min drains into sand grains in the grit water separator 6 outside concentration basin or sends outside.
| The inlet channel gradient | 0.02 | 0.042 | 0.064 | 0.08 |
| Remove sand coarse aggregate ratio (%) | 85 | 92 | 95 | 88 |
Table 2
Can know that to sum up the utility model shows also more satisfactory aspect energy consumption.The impeller-driven of rotational flow grit chamber only needs the very motor of fraction horsepower, and turbine pump and dewater unit that Chi Ding installs just just move in the sediment outflow process, and only need nearly 1 hour every day, compares with traditional setting pot, can save the energy about 94%.Rotational flow grit chamber takes up an area of also very little, can practice thrift the plant area soil greatly, optimizes reasonable plant area layout.Rotational flow grit chamber has only used impeller, does not have bearing under water, is prone to parts frayed or that stop up and moves under water.The drive unit of rotational flow grit chamber, oil site and bearing all more than the water surface of top, pond, are convenient to safeguard.The sand grains of accumulation is installed by the top and the pump of anhydrous moving component down promotes, and unique maintenance is to carry out not too frequent motor to lubricate.In a word, the equipment that not only need safeguard is few, and does not have frayed parts basically, and from long-range operation, its maintenance cost is seldom.
Claims (7)
1. a rotational flow grit chamber comprises inlet channel (1), pond (2) and goes out water channel (3), and it is characterized in that, the inlet of said pond (2) links to each other with inlet channel (1), the outlet of said pond (2) with go out water channel (3) and link to each other; Bottom, said pond (2) is provided with impeller (4); Said pond (2) bottom centre below is provided with sand collecting hopper (5), and said pond (2) also link to each other with grit water separator (6), and said impeller (4) rotates under the effect of drive motors (7).
2. pulp water treating apparatus in the fine coal air-flow bed coal-gasification process according to claim 1 is characterized in that the gradient of said inlet channel (1) is 0.02-0.08.
3. pulp water treating apparatus in the fine coal air-flow bed coal-gasification process according to claim 2 is characterized in that the gradient of said inlet channel (1) is 0.042-0.064.
4. pulp water treating apparatus in the fine coal air-flow bed coal-gasification process according to claim 1 is characterized in that, said inlet channel (1) links to each other with the inlet of said pond tangential direction with pond (2).
5. pulp water treating apparatus in the fine coal air-flow bed coal-gasification process according to claim 1 is characterized in that said drive motors (7) is arranged on the top of said pond (4).
6. pulp water treating apparatus in the fine coal air-flow bed coal-gasification process according to claim 1 is characterized in that, also is provided with decelerator (8) on the output shaft of said drive motors (7).
7. pulp water treating apparatus in the fine coal air-flow bed coal-gasification process according to claim 1 is characterized in that, said grit water separator (6) links to each other with sediment outflow pump (9) through pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258108 CN202605808U (en) | 2012-06-02 | 2012-06-02 | Cyclone grit chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220258108 CN202605808U (en) | 2012-06-02 | 2012-06-02 | Cyclone grit chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202605808U true CN202605808U (en) | 2012-12-19 |
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ID=47339542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220258108 Expired - Fee Related CN202605808U (en) | 2012-06-02 | 2012-06-02 | Cyclone grit chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202605808U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324545A (en) * | 2014-10-22 | 2015-02-04 | 苏州富奇诺水治理设备有限公司 | Turbine pressurization type sandy water separating filter device |
| CN109420368A (en) * | 2017-09-05 | 2019-03-05 | 武汉千瑞泰环境科技有限公司 | A kind of biological reaction pool desanding water dispensing apparatus |
-
2012
- 2012-06-02 CN CN 201220258108 patent/CN202605808U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324545A (en) * | 2014-10-22 | 2015-02-04 | 苏州富奇诺水治理设备有限公司 | Turbine pressurization type sandy water separating filter device |
| CN104324545B (en) * | 2014-10-22 | 2016-07-06 | 苏州富奇诺水治理设备有限公司 | A kind of turbo-pressure formula sand-water separating defecator |
| CN109420368A (en) * | 2017-09-05 | 2019-03-05 | 武汉千瑞泰环境科技有限公司 | A kind of biological reaction pool desanding water dispensing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20200602 |