CN201074196Y - Novel 3-phase inner-circulation biological wastewater treatment fluidized bed apparatus - Google Patents
Novel 3-phase inner-circulation biological wastewater treatment fluidized bed apparatus Download PDFInfo
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- CN201074196Y CN201074196Y CNU2007201559047U CN200720155904U CN201074196Y CN 201074196 Y CN201074196 Y CN 201074196Y CN U2007201559047 U CNU2007201559047 U CN U2007201559047U CN 200720155904 U CN200720155904 U CN 200720155904U CN 201074196 Y CN201074196 Y CN 201074196Y
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Abstract
Disclosed is a novel three-phase internal circulating fluidized biological bed for waste treatment, which is composed of a bed body (3), a lifting pipe (7), a honeycomb duct (4), a gas injector (8), a water inlet (2), a water outlet (6), an air inlet (1), an air outlet (5) and a blow-down opening (9). The top end of the bed body (3) is provided with the air outlet (5), the right side of the upper section of which is equipped with the water outlet (6), the lifting pipe (7) is disposed on the lower portion of the bed body (3), and the upper end of the lifting pipe (7) is partially inserted on the lower portion of the honeycomb duct (4). The left side of the lower portion of the bed body (3) is provided with the water inlet (2), the lower end of the bed body (3) is equipped with the air inlet (1) and the blow-down opening (9), the air inlet (1) is communicated with the gas injector (8) which is deposed at the lower end of the lifting pipe (7), and the base end of the bed body (3) is with a conic structure. The utility model has the advantages of simple structure, low cost, small occupied area and easy operation.
Description
Technical field
The utility model is a kind of three-phase internal recycle wastewater treatment fluidizer, relates in particular in a kind of novel three-phase that is applicable to the biological effluent treatment field and follows fluidizer.
Background technology
Along with Chinese society and rapid development of economy, and the increase of the size of population, aggravated the shortage of China's water resources, for this reason, waste water handling problem more and more is subjected to people's attention.In numerous wastewater processing technologies, the organism fluidization bed technique is one of most important method wherein.The research of disposing waste water by biological fluidized bed and application start from the U.S. of the seventies in 20th century, and domestic research in this field is later relatively.Biological fluidized bed is the product of Environmental Biotechnology application development, simultaneously, it has the advantage of fluidized-bed reactor again, can improve the biological concentration in the unit reactor volume as much as possible, increase biological group in the reaction system effectively, higher level ground performance microbic activity, and simple to operate, running cost is low, thereby is widely used in the wastewater treatment in fields such as printing and dyeing, chemical industry and pharmacy.
The circulating biological fluidized-bed is divided into two kinds of internal recycle bed and outer circulation beds by the Recycle design difference.Document (Hua Bin, Lu Yongsheng etc. the external circulation fluidized bed treatment of dyeing and printing. the process engineering journal, 2002,2 (2): it is three-phase biologic fluidized-bed 107～111.) to have set forth a kind of modified version outer circulation, be characterized in that main bed one side is provided with secondary bed, simple in structure, but its be used for actual production processing capacity be still waiting the textual criticism.In addition, forefathers have also developed the inner loop fluidized bed reactor of numerous species.Wherein: Chinese patent (ZL 01263058.6) discloses a kind of multitube inner loop three phase fluidized bed reactor, by arranging that in biochemistry pool a kind of knockdown stripping tube reaches the purpose of bio-carrier fluidisation, can improve the replacing speed of carrier biofilm, increase biological activity, help improving the wastewater treatment ability; Shortcoming is that floor space is big, and investment is high, complex structure.
Summary of the invention
The purpose of this utility model is deficiency and the problem that solves in the background technology, provides that a kind of floor space is little, simple in structure, cost is low, easy-operating three-phase internal recycle biological effluent treatment fluidizer.
The purpose of this utility model is achieved in that it is made up of bed body, riser tube, thrust-augmenting nozzle, gas jet, water-in, water port, inlet mouth, venting port and sewage draining exit.It is characterized in that a body constitutes by three sections, bed body epimere diameter is greater than the hypomere diameter, and middle there is a pyramidal structure hypomere lower end by the connection of tapering transition section, and the whole bed body is a funnel shaped.Riser tube is the tapered tube that a upper end diameter is slightly less than lower end diameter, and its maximum diameter is less than bed body hypomere diameter.Thrust-augmenting nozzle one end is an equal diameter straight tube, and the other end is connected to form by two speaking trumpets, and its bottom speaking trumpet lower end diameter is greater than the riser tube upper end diameter.There is venting port on bed body top, its upper right has water port, riser tube is placed in the intravital bottom of bed, it is outside that the speaking trumpet of thrust-augmenting nozzle bottom partly is inserted in the riser tube upper end, there are inlet mouth and sewage draining exit in bed body lower end, and inlet mouth communicates with gas jet, and gas jet is placed in the lower end in the riser tube, the gas distribution hole is arranged on the gas jet, and bed body lower left side has water-in.
Waste water flows in the bed body by water-in, gas then enters riser tube through inlet mouth by gas jet, react with liquid and bio-carrier in the riser tube, and carry liquid and bio-carrier moves upward, liquid, bio-carrier and bubble are realized gas in thrust-augmenting nozzle, liquid, Gu after the three phase separation, gas is discharged by the vertical venting port of bed body by thrust-augmenting nozzle, the stream that falls that liquid and bio-carrier then enter through the gap between riser tube and the thrust-augmenting nozzle between a body and the riser tube is distinguished, simultaneously, that part of liquid that is equivalent to flooding velocity, stitch the settling region that enters between a body top and the thrust-augmenting nozzle upper end by the backflow of bed body middle part and thrust-augmenting nozzle lower end, discharge through the water port of bed body upper right through the post precipitation supernatant liquor in the settling region, the intravital dirt of bed is then discharged through the sewage draining exit of bed body lower end.
The utility model compared with prior art has the following advantages:
1. riser tube of the present utility model is the tapered tube that a upper end diameter is slightly less than lower end diameter, when gas-entrained liquid and bio-carrier upwards move in riser tube, because the variation of riser tube sectional area, guaranteed in the bio-carrier motion that also can in riser tube, make progress of bigger particle, it is more even that the interior bio-carrier axial concentration of riser tube is distributed, and avoided carrier demixing phenomenon in the bed effectively;
2. the stream district that falls between bed body bottom of the present utility model and the riser tube exists sectional area to change equally, liquid and bio-carrier are falling stream district when moving downward, effectively reduce liquid and the bio-carrier residence time in falling the stream district, obviously promoted the wastewater treatment capacity of whole device;
3. because all there is sectional area difference in riser tube with falling in the stream district, cause the bio-carrier overwhelming majority all to participate in circulating, suffered shearing force and the frictional force basically identical of bio-carrier in whole device, in addition, the increase of medium circulation speed has caused the interior hydraulic friction power of device and has sheared increase, blocked up microbial film is come off voluntarily, guaranteed the density basically identical of bio-carrier in the device, need not to increase the excessive increase that other utility appliance just can limit film on the bio-carrier, carrier can not run off again simultaneously, has simplified traditional fluidized-bed waste water treatment process;
4. thrust-augmenting nozzle of the present utility model lower section is connected to form by two speaking trumpets, after medium flows into this zone by the riser tube upper end, the gas, liquid, solid three-phase is fully separated.In addition, form a settling region between bed body top and the thrust-augmenting nozzle top, liquid enters and post precipitation by the backflow seam of bed body middle part with the thrust-augmenting nozzle lower end, just can obtain supernatant liquor, and other media then can be turned back to by the seam that refluxes and fall in the stream district;
5. gas distributor adopts many annular tube types of level nozzle arrangements, on sparger, tangentially be evenly distributed with the gas distribution hole obliquely, this type sparger can effectively reduce bubble size, increase the lifting force of gas significantly to liquid, simultaneously, also can effectively improve mixing of gas, liquid, solid three-phase and contact efficiency in the riser tube;
6. bed body bottommost adopts pyramidal structure, helps the discharge of dirt.
7. the utility model operational management is convenient, and the transfer efficiency of oxygen improves greatly than traditional fluidized-bed, and whole plant energy consumption obviously reduces.
Description of drawings
Fig. 1 is a three-phase internal recycle biological effluent treatment fluidizer structural representation
Fig. 2 is the gas nozzle structure synoptic diagram
As shown in the figure, the 1st, inlet mouth, the 2nd, water-in, the 3rd, a body, the 4th, thrust-augmenting nozzle, the 5th, venting port, the 6th, water port, the 7th, riser tube, the 8th, gas jet, the 9th, sewage draining exit, the 10th, gas distribution hole
Embodiment
There is venting port 5 on the top of bed body 3, its upper right has water port 6, riser tube 7 is arranged at the bottom in the bed body 3, riser tube 7 upper end portions are nested in the bottom of thrust-augmenting nozzle 4, the lower left side of bed body 3 has water-in 2, there are inlet mouth 1 and sewage draining exit 9 in its bottom, and the gas jet 8 in inlet mouth 1 and the riser tube 7 communicates, and the 10th, the gas distribution hole on the gas jet 8.
Waste water flows in the bed body 3 by water-in 2, gas then enters in the riser tube 7 by gas jet 8 through inlet mouth 1, liquid and bio-carrier in riser tube 7 move upward, liquid, bio-carrier and gas are realized gas in thrust-augmenting nozzle 4, liquid, Gu after the three phase separation, gas is discharged by bed body 3 vertical venting ports 5 by thrust-augmenting nozzle 4, the stream that falls that liquid and bio-carrier then enter through the gap between riser tube 7 and the thrust-augmenting nozzle 4 between a body 3 and the riser tube 7 is distinguished, simultaneously, that part of liquid that is equivalent to flooding velocity, the settling region that enters between a body 3 tops and thrust-augmenting nozzle 4 upper ends is stitched in backflow by bed body 3 middle parts and thrust-augmenting nozzle 4 lower ends, discharge through the water port 6 of bed body 3 upper right through the post precipitation supernatant liquor in the settling region, the intravital dirt of bed is then discharged through the sewage draining exit 9 on right side, bed body 3 lower end.
Claims (4)
1. novel three-phase internal recycle biological effluent treatment fluidizer, it is by bed body (3), riser tube (7), thrust-augmenting nozzle (4), gas jet (8), water-in (2), water port (6), inlet mouth (1), venting port (5) and sewage draining exit (9) are formed, there is venting port (5) on the top that it is characterized in that a body (3), there is water port (6) on its epimere right side, riser tube (7) is placed in the bottom in the body (3), its upper end portion is nested in the bottom of thrust-augmenting nozzle (4), bed body (3) lower left side has water-in (2), there are inlet mouth (1) and sewage draining exit (9) in its lower end, inlet mouth (1) communicates with gas jet (8), gas jet (8) is placed in the lower end in the riser tube (7), the tapered structure in bottom of bed body (3).
2. a kind of novel three-phase internal recycle biological effluent treatment fluidizer as claimed in claim 1, it is characterized in that described thrust-augmenting nozzle (4) one ends are an equal diameter straight tube, the other end is connected to form by two speaking trumpets, and its underpart speaking trumpet lower end diameter is greater than riser tube (7) upper end diameter.
3. a kind of novel three-phase internal recycle biological effluent treatment fluidizer as claimed in claim 1 is characterized in that described riser tube (7) is the uncovered Taper Pipe that a upper end diameter is slightly less than lower end diameter.
4. a kind of novel three-phase internal recycle biological effluent treatment fluidizer as claimed in claim 1 is characterized in that being furnished with on the described gas jet (8) gas distribution hole (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201559047U CN201074196Y (en) | 2007-07-03 | 2007-07-03 | Novel 3-phase inner-circulation biological wastewater treatment fluidized bed apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201559047U CN201074196Y (en) | 2007-07-03 | 2007-07-03 | Novel 3-phase inner-circulation biological wastewater treatment fluidized bed apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN201074196Y true CN201074196Y (en) | 2008-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201559047U Expired - Fee Related CN201074196Y (en) | 2007-07-03 | 2007-07-03 | Novel 3-phase inner-circulation biological wastewater treatment fluidized bed apparatus |
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| Country | Link |
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| CN (1) | CN201074196Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105561909A (en) * | 2015-12-17 | 2016-05-11 | 中磁科技股份有限公司 | Reaction tank |
| CN107116030A (en) * | 2016-02-25 | 2017-09-01 | 神华集团有限责任公司 | The piece-rate system and separation method of solid mixture |
| CN107902850A (en) * | 2017-12-26 | 2018-04-13 | 长沙理工大学 | A kind of biomembrane strengthened denitrification treatment process |
| CN108069505A (en) * | 2016-11-11 | 2018-05-25 | 南京理工大学 | A kind of inner loop three phase fluidized bed reactor |
-
2007
- 2007-07-03 CN CNU2007201559047U patent/CN201074196Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105561909A (en) * | 2015-12-17 | 2016-05-11 | 中磁科技股份有限公司 | Reaction tank |
| CN105561909B (en) * | 2015-12-17 | 2017-07-11 | 中磁科技股份有限公司 | Retort |
| CN107116030A (en) * | 2016-02-25 | 2017-09-01 | 神华集团有限责任公司 | The piece-rate system and separation method of solid mixture |
| CN108069505A (en) * | 2016-11-11 | 2018-05-25 | 南京理工大学 | A kind of inner loop three phase fluidized bed reactor |
| CN107902850A (en) * | 2017-12-26 | 2018-04-13 | 长沙理工大学 | A kind of biomembrane strengthened denitrification treatment process |
| CN107902850B (en) * | 2017-12-26 | 2021-04-27 | 长沙理工大学 | Enhanced denitrification treatment process for biological membrane |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20100703 |