CN111422996A - Microorganism multiphase fluidization internal mass transfer stirrer - Google Patents
Microorganism multiphase fluidization internal mass transfer stirrer Download PDFInfo
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- CN111422996A CN111422996A CN202010349792.9A CN202010349792A CN111422996A CN 111422996 A CN111422996 A CN 111422996A CN 202010349792 A CN202010349792 A CN 202010349792A CN 111422996 A CN111422996 A CN 111422996A
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- 244000005700 microbiome Species 0.000 title claims abstract description 29
- 238000005243 fluidization Methods 0.000 title claims description 15
- 239000000945 filler Substances 0.000 claims abstract description 127
- 230000005540 biological transmission Effects 0.000 claims abstract description 45
- 238000003756 stirring Methods 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 230000000813 microbial effect Effects 0.000 claims abstract description 25
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 11
- 230000005570 vertical transmission Effects 0.000 claims abstract description 4
- 239000010865 sewage Substances 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 230000000644 propagated effect Effects 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 2
- 230000003993 interaction Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 10
- 239000003344 environmental pollutant Substances 0.000 abstract description 8
- 231100000719 pollutant Toxicity 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000000725 suspension Substances 0.000 description 6
- 238000005202 decontamination Methods 0.000 description 5
- 230000003588 decontaminative effect Effects 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 3
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 2
- 208000003251 Pruritus Diseases 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a microbial multiphase fluidized internal mass transfer stirrer, which comprises a tank body, a speed reducing motor, a main transmission shaft, a shaft outer sleeve, a transmission assembly, mass transfer blades, stirring blades and a filler, wherein the tank body is provided with a water inlet and a water outlet; the speed reducing motor is in transmission with the main transmission shaft; the fixed gear at the lower end of the shaft sleeve is meshed with the moving gear and is in vertical transmission connection; the moving gear is fixed with the mass transfer paddle and drives the mass transfer paddle to rotate in the radial direction; the mass transfer blades rotate in opposite directions; under the reverse interaction of the mass transfer paddle and the screen with the filler and the water power, the internal and external mass transfer rate of the filler is improved, so that the microorganism is more homogenized, the pollutant is more quickly transferred, the ecological maintenance and the external surface interaction in the filler are ensured, and the internal and external transfer and respiration of the filler are improved; compared with the prior art, the invention has the advantages of simple structure, reasonable arrangement and good internal and external mass transfer effect of the filler, and improves the mass transfer balance of the micro-ecological environment, thereby improving the removal effect of microbial flora.
Description
Technical Field
The invention relates to the technical field of sewage biochemical treatment, in particular to a microbial multiphase fluidized internal mass transfer stirrer.
Background
Stirring and mixing refers to an operation of stirring liquid to make the liquid circularly flow in a certain mode, so that materials are uniformly mixed or physical and chemical processes are accelerated; and the stirrer is a device for realizing stirring and mixing. In the sewage and wastewater treatment industry, mechanical stirring and/or aeration stirring are/is generally adopted as a stirring method. The stirring paddles of the existing mechanical stirring device are generally fixedly arranged, and can only rotate at the same position and in the same direction under the driving of a motor, the flowing direction of the mixture is difficult to change in multiple directions, the stirring is insufficient, and the stirring effect is poor.
In the sewage treatment process, a plurality of pool bodies need to be stirred; along with the enhancement of environmental pollution treatment, the application of the technology for treating sewage and wastewater by a biochemical method is more and more extensive, and the high-efficiency microbial flora effectively removes pollutants in the sewage and wastewater by taking fluidized fillers as a breeding ground of microorganisms in water; the micro-ecological environment on the filler organically combines aerobic microorganisms, anaerobic microorganisms and facultative microorganisms to form a stable multifunctional micro-ecological system, and has the functions of degrading pollution, purifying water quality, stabilizing the balance of a water body ecological system and improving the ecological regulation function.
The defects in the prior art are that the stirring effect of a stirring mode or an aeration mode on a water body cannot change the micro-ecological internal mass transfer of aerobic, anaerobic and facultative bacteria in the filler, the internal mass transfer of the filler is the key point for influencing and changing the micro-ecology in the micro-ecological environment in the filler, and the improvement of the internal mass transfer of the filler can obviously improve the activity of various microbial floras, thereby effectively improving the treatment capacity of the microorganisms on sewage and wastewater.
Disclosure of Invention
In order to solve the technical problems, the invention provides a microbial multiphase fluidization internal mass transfer stirrer, aiming at the defects in the prior art, the stirrer with the function of increasing the internal mass transfer is designed in a multiphase system; under the condition of filler fluidization, the filler improves the internal mass transfer rate of the filler under the interaction of water power and stirring blades, so that microorganisms are more homogenized, pollutants are more rapidly transferred, the internal ecological maintenance and external surface interaction of the filler are ensured, the internal and external mass transfer and respiration of the filler are improved, and the decontamination effect of the microorganisms in the filler is greatly improved.
In order to achieve the purpose, the technical scheme of the invention is as follows: a microorganism multiphase fluidization internal mass transfer stirrer comprises a pool body, a speed reducing motor, a main transmission shaft, a shaft outer sleeve, a transmission assembly, mass transfer blades, stirring blades and a filler; the method is characterized in that:
the tank body is fixedly provided with an internal mass transfer stirrer through a stirrer support; the driving shaft of the speed reducing motor is axially connected with a main transmission shaft; a shaft outer sleeve is sleeved on the main transmission shaft, and the upper end of the shaft outer sleeve is fixedly connected with the stirrer support through a fixing flange; the lower end of the shaft outer sleeve is welded with a fixed gear which is a helical gear; the bevel gear is meshed with a moving gear in the transmission shaft assembly and is in vertical transmission connection with the moving gear in the transmission shaft assembly; two moving gears are arranged in the opposite direction, the two moving gears are fixedly connected with the two mass transfer blades, and the two moving gears respectively drive the two mass transfer blades to rotate in the radial direction; the mass transfer blades rotate in opposite directions; the transmission assembly includes: the device comprises a bearing, a sealing ring, a movable gear, a fixed bolt, a main shaft key groove and a connecting shaft; the main transmission shaft, the bearing, the sealing ring and the shaft outer sleeve realize sealing and stable operation; the connecting shaft is rotationally connected with the bearing, the sealing ring and the movable gear mass transfer paddle; the connecting shaft is vertically and fixedly connected with the fixing bolt, the main shaft key groove and the main transmission shaft; the circumference of the mass transfer paddle is equally divided into two groups, and the mass transfer paddle comprises a supporting framework, a screen and a paddle frame; a latticed supporting framework is fixedly welded in the paddle frame, a screen is fixedly arranged in the grid of the supporting framework, and the screen comprises a stainless steel net and/or an elastic net; the peripheries of the paddle frames are provided with material collecting plates in a bidirectional symmetrical mode; the material collecting plate is configured in a folded angle or arc manner; the stirring blades are fixedly connected to the lower end of the main transmission shaft through a fixed clamping plate, and at least two stirring blades are arranged in equal intervals on the circumference of the stirring blades;
the filler is a porous elastic sponge block and is added into the sewage; microbial flora is propagated in the filler block, and the filler in the sewage is extruded, contracted, released and expanded mutually under the hydraulic action of the mass transfer paddle, so that the internal mass transfer respiration of the filler block is realized.
Preferably, the filler is Polyurethane (PU) or polyvinyl formal (PVA).
The specific gravity of the filler ranges from 1.002 to 1.06, and the filler is in a suspension state in sewage; the filler is larger than the pore size of the screen.
The mass transfer method of the internal mass transfer stirrer comprises the following steps:
s1, rotating a main transmission shaft of the stirrer and driving the main transmission shaft through a connecting shaft, and horizontally and synchronously rotating the mass transfer paddle in the sewage;
s2, in the step S1, the fixed gear at the lower end of the shaft outer sleeve and the two sets of moving gears are meshed with each other to rotate; the two groups of moving gears drive the two mass transfer blades to rotate oppositely along the radial direction;
s3, collecting the suspended filler in the sewage through a screen on the upstream surface where the mass transfer paddle rotates;
s4, after the filler is retained on the screen mesh; under the mutual extrusion of the driving force of the screen and the reverse water flow, the filler shrinks and discharges the sewage and planktonic microorganisms in the filler out of the filler, so as to realize the external mass transfer of the filler;
s5, the filler on the screen gradually transits to the back water surface along with the rotation of the mass transfer paddle, the filler is gradually released by the screen on the upstream surface in the process that the mass transfer paddle gradually turns to the back water surface from the upstream surface, and the filler is completely released under the action of water permeating from the back water surface, so that the filler can suck the sewage and planktonic microorganisms again, and the internal mass transfer of the filler is realized;
s6, the mass transfer paddle blades rotate along the radial direction and the opposite direction, and the mass transfer paddle blades repeatedly perform the processes of S3-S4-S5, and continuously stir and transfer the internal mass and the external mass of the filler;
and S7, the stirring blade synchronously stirs the sewage and the suspended filler in the sewage along with the main transmission shaft.
The invention has the working principle that a certain proportion of filler blocks are added into the sewage to be treated, and a microbial agent is added; because the filler is in a flowing suspension state in the sewage, microorganisms in the sewage can generate a biofilm in the filler, and a filler block can respectively generate continuous phases with good itch, oxygen deficiency and anaerobic property from outside to inside and is in a mutual balance state with water inside and outside the filler; the fluidized filling is used as a residence for breeding and decontamination; the internal mass transfer stirrer increases the internal and external mass transfer rate of the microbial flora in the filler block through longitudinal rotating stirring and radial internal and external mass transfer respiration, and is greatly favorable for the removal efficiency of the microbial flora on pollutants in water.
The interaction between the internal and external mass transfer stirrer and the solid-phase filler water phase, pollutants and biological phases is as follows: the stirrer main transmission shaft rotates and is driven by the connecting shaft, and the mass transfer paddle horizontally and synchronously rotates in the sewage; when the step S1 is operated, the fixed gear at the lower end of the shaft outer sleeve and the two sets of moving gears are meshed with each other to rotate; the two groups of moving gears drive the two mass transfer blades to rotate oppositely along the radial direction; the mass transfer paddle is arranged on the upstream surface of the rotating mass transfer paddle, and the filler in a suspension state in the sewage is collected through the screen; after the filler is retained on the screen; under the mutual extrusion of the driving force of the screen and the reverse water flow, the filler shrinks and discharges the sewage and planktonic microorganisms in the filler out of the filler, so as to realize the external mass transfer of the filler; the filler on the screen gradually transits to the back water surface along with the rotation of the mass transfer paddle, the filler is gradually released by the screen on the upstream surface in the process that the mass transfer paddle is converted from the upstream surface to the back water surface, and the filler is completely released under the action of water permeating on the back water surface, so that the filler can suck sewage and planktonic microorganisms again, and the internal mass transfer of the filler is realized; the two groups of mass transfer blades rotate along the radial direction and in opposite directions, and simultaneously the mass transfer blades repeatedly carry out the processes of S3-S4-S5, and continuously stir and carry out internal and external mass transfer on the filler; the stirring paddle synchronously stirs the sewage and the suspended filler in the sewage along with the main transmission shaft; on the basis of the stirring function, the invention synchronously improves and promotes the mass transfer process of the microbial bacteria environment in the filler, thereby greatly improving the sewage treatment effect.
Through the technical scheme, the internal mass transfer stirrer has the advantages that the internal mass transfer function is effectively increased in a multi-phase system; under the condition of filler fluidization, the filler improves the internal mass transfer rate of the filler under the interaction of water power and the stirring paddle, so that microorganisms are more homogenized, pollutants are more rapidly transferred, the ecological maintenance and the external surface interaction in the filler are ensured, and the internal and external mass transfer and respiration of the filler are improved; the stirring paddle rotates 360 degrees longitudinally, the mass transfer paddle synchronously rotates radially, under the radial and longitudinal rotation of the mass transfer paddle, the interaction of the screen and the water power effectively gathers and releases materials, so that the internal mass transfer respiration is fully performed while the filler in the tank body flows in multiple directions, and the decontamination effect of microorganisms in the filler is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic front view of a microbial multiphase fluidized internal mass transfer agitator according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a microbial multiphase fluidized internal mass transfer agitator AA according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a part of a microorganism multiphase fluidization internal mass transfer stirrer B in an enlarged scale according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a part of a microorganism multiphase fluidization internal mass transfer stirrer C in an enlarged scale according to an embodiment of the invention;
FIG. 5 is an enlarged schematic view of the end face of a microbial multiphase fluidized internal mass transfer stirrer D according to an embodiment of the present invention;
fig. 6 is a schematic view of a microorganism multiphase fluidization internal mass transfer stirrer EE in a cross section.
The corresponding part names indicated by the numbers and letters in the drawings:
1. speed reducing motor 2, stirrer support 3, main transmission shaft 4 and shaft sleeve
5. Fixed flange 6, fixed gear 7, bearing 8 and sealing ring
9. Moving gear 10, fixing bolt 11, main shaft key groove 12 and mass transfer paddle
13. Support framework 14, screen 15, blade frame 16 and pool body
17. Stirring paddle 18, fixed splint 19, filler 20 and sewage
21. Connecting shaft 22. aggregate plate
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the figures 1 to 6, the invention provides a microorganism multiphase fluidization internal mass transfer stirrer, which comprises a pool body, a speed reducing motor, a main transmission shaft, a shaft outer sleeve, a transmission assembly, mass transfer blades, stirring blades and a filler, wherein the speed reducing motor is arranged on the pool body;
the tank body is fixedly provided with an internal mass transfer stirrer through a stirrer support; the driving shaft of the speed reducing motor is axially connected with a main transmission shaft; a shaft outer sleeve is sleeved on the main transmission shaft, and the upper end of the shaft outer sleeve is fixedly connected with the stirrer support through a fixing flange; the lower end of the shaft outer sleeve is welded with a fixed gear which is a helical gear; the bevel gear is meshed with a moving gear in the transmission shaft assembly and is in vertical transmission connection with the moving gear in the transmission shaft assembly; two moving gears are arranged in the opposite direction, the two moving gears are fixedly connected with the two mass transfer blades, and the two moving gears respectively drive the two mass transfer blades to rotate in the radial direction; the mass transfer blades rotate in opposite directions; the transmission assembly includes: the device comprises a bearing, a sealing ring, a movable gear, a fixed bolt, a main shaft key groove and a connecting shaft; the main transmission shaft, the bearing, the sealing ring and the shaft outer sleeve realize sealing and stable operation; the connecting shaft is rotationally connected with the bearing, the sealing ring and the movable gear mass transfer paddle; the connecting shaft is vertically and fixedly connected with the fixing bolt, the main shaft key groove and the main transmission shaft; the circumference of the mass transfer paddle is equally divided into two groups, and the mass transfer paddle comprises a supporting framework, a screen and a paddle frame; a latticed supporting framework is fixedly welded in the paddle frame, a screen is fixedly arranged in the grid of the supporting framework, and the screen comprises a stainless steel net and/or an elastic net; the peripheries of the paddle frames are provided with material collecting plates in a bidirectional symmetrical mode; the material collecting plate is configured in a folded angle or arc manner; the stirring blades are fixedly connected to the lower end of the main transmission shaft through a fixed clamping plate, and at least two stirring blades are arranged in equal intervals on the circumference of the stirring blades;
the filler is a porous elastic sponge block and is added into the sewage; microbial flora is propagated in the filler block, and the filler in the sewage is extruded, contracted, released and expanded mutually under the hydraulic action of the mass transfer paddle, so that the internal mass transfer respiration of the filler block is realized.
The filler adopts polyvinyl formal (PVA), the specific gravity range of the filler is 1.04, and the filler is in a suspension state in sewage; the filler is larger than the pore size of the screen.
Adding a certain proportion of filler blocks into the sewage to be treated, and adding a microbial agent; because the filler is in a flowing suspension state in the sewage, microorganisms in the sewage can generate a biofilm in the filler, and a filler block can respectively generate continuous phases with good itch, oxygen deficiency and anaerobic property from outside to inside and is in a mutual balance state with water inside and outside the filler; the fluidized filling is used as a residence for breeding and decontamination; the internal mass transfer stirrer increases the internal and external mass transfer rate of the microbial flora in the filler block through longitudinal rotation stirring and radial internal and external mass transfer respiration, and is greatly favorable for the removal efficiency of the microbial flora on pollutants in water:
1. the stirrer main transmission shaft rotates and is driven by the connecting shaft, and the mass transfer paddle horizontally and synchronously rotates in the sewage; 2. when the electric motor runs, the fixed gear at the lower end of the shaft outer sleeve and the two sets of moving gears are meshed with each other to rotate; the two groups of moving gears drive the two mass transfer blades to rotate oppositely along the radial direction; 3. the mass transfer paddle is arranged on the upstream surface of the rotating mass transfer paddle, and the filler in a suspension state in the sewage is collected through the screen; 4. after the filler is retained on the screen; under the mutual extrusion of the driving force of the screen and the reverse water flow, the filler shrinks and discharges the sewage and planktonic microorganisms in the filler out of the filler, so as to realize the external mass transfer of the filler; 5. the filler on the screen gradually transits to the back water surface along with the rotation of the mass transfer paddle, the filler is gradually released by the screen on the upstream surface in the process that the mass transfer paddle is converted from the upstream surface to the back water surface, and the filler is completely released under the action of water permeating on the back water surface, so that the filler sucks sewage and planktonic microorganisms again, and the extruded filler realizes internal mass transfer; 6. the two groups of mass transfer blades rotate along the radial direction and in opposite directions, and simultaneously, the mass transfer blades repeatedly carry out the processes of collecting materials, extruding external mass transfer and releasing internal mass transfer, and continuously stir and carry out internal and external mass transfer on the filler; 7. the stirring paddle is used for synchronously stirring the sewage and the suspended filler in the sewage along with the main transmission shaft. On the basis of the stirring function, the invention synchronously improves and promotes the mass transfer process of the microbial bacteria environment in the filler, thereby greatly improving the sewage treatment effect.
Through the specific embodiment, the beneficial effects of the invention are as follows: the internal mass transfer stirrer effectively increases the internal mass transfer function in a multiphase system; under the condition of filler fluidization, the filler improves the internal mass transfer rate of the filler under the interaction of water power and the stirring paddle, so that microorganisms are more homogenized, pollutants are more rapidly transferred, the ecological maintenance and the external surface interaction in the filler are ensured, and the internal and external mass transfer and respiration of the filler are improved; the stirring paddle rotates 360 degrees longitudinally, the mass transfer paddle synchronously rotates radially, under the radial and longitudinal rotation of the mass transfer paddle, the interaction of the screen and the water power effectively gathers and releases materials, so that the internal mass transfer respiration is fully performed while the filler in the tank body flows in multiple directions, and the decontamination effect of microorganisms in the filler is greatly improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. A microbial multiphase fluidized internal mass transfer stirrer is characterized by comprising a pool body, a speed reducing motor, a main transmission shaft, a shaft outer sleeve, a transmission assembly, mass transfer blades, stirring blades and a filler; the tank body is fixedly provided with an internal mass transfer stirrer through a stirrer support; the driving shaft of the speed reducing motor is axially connected with a main transmission shaft; a shaft outer sleeve is sleeved on the main transmission shaft, and the upper end of the shaft outer sleeve is fixedly connected with the stirrer support through a fixing flange; the lower end of the shaft outer sleeve is welded with a fixed gear which is a helical gear; the bevel gear is meshed with a moving gear in the transmission shaft assembly and is in vertical transmission connection with the moving gear in the transmission shaft assembly; two moving gears are arranged in the opposite direction, the two moving gears are fixedly connected with the two mass transfer blades, and the two moving gears respectively drive the two mass transfer blades to rotate in the radial direction; the mass transfer blades rotate in opposite directions; the transmission assembly includes: the device comprises a bearing, a sealing ring, a movable gear, a fixed bolt, a main shaft key groove and a connecting shaft; the main transmission shaft, the bearing, the sealing ring and the shaft outer sleeve realize sealing and stable operation; the connecting shaft is rotationally connected with the bearing, the sealing ring and the movable gear mass transfer paddle; the connecting shaft is vertically and fixedly connected with the fixing bolt, the main shaft key groove and the main transmission shaft; the circumference of the mass transfer paddle is equally divided into two groups, and the mass transfer paddle comprises a supporting framework, a screen and a paddle frame; a latticed supporting framework is fixedly welded in the paddle frame, a screen is fixedly arranged in the grid of the supporting framework, and the screen comprises a stainless steel net and/or an elastic net; the peripheries of the paddle frames are provided with material collecting plates in a bidirectional symmetrical mode; the material collecting plate is configured in a folded angle or arc manner; the stirring blades are fixedly connected to the lower end of the main transmission shaft through a fixed clamping plate, and at least two stirring blades are arranged at equal intervals on the circumference of the stirring blades.
2. The microbial multiphase fluidization internal mass transfer stirrer according to claim 1, wherein the filler is a porous elastic sponge block and is added into sewage; microbial flora is propagated in the filler block, and the filler in the sewage is extruded, contracted, released and expanded mutually under the hydraulic action of the mass transfer paddle, so that the internal mass transfer respiration of the filler block is realized.
3. The microbial heterogeneous fluidization internal mass transfer stirrer according to claim 1, wherein the filler is Polyurethane (PU) or polyvinyl formal (PVA).
4. The microbial heterogeneous fluidization internal mass transfer agitator of claim 1, wherein the specific gravity of the filler is in the range of 1.002 to 1.06, and the filler is in a suspended state in the sewage; the filler is larger than the pore size of the screen.
5. The microbial heterogeneous fluidization internal mass transfer stirrer according to claim 1, wherein the mass transfer method of the internal mass transfer stirrer is as follows:
s1, rotating a main transmission shaft of the stirrer and driving the main transmission shaft through a connecting shaft, and horizontally and synchronously rotating the mass transfer paddle in the sewage;
s2, in the step S1, the fixed gear at the lower end of the shaft outer sleeve and the two sets of moving gears are meshed with each other to rotate; the two groups of moving gears drive the two mass transfer blades to rotate oppositely along the radial direction;
s3, collecting the suspended filler in the sewage through a screen on the upstream surface where the mass transfer paddle rotates;
s4, after the filler is retained on the screen mesh; under the mutual extrusion of the driving force of the screen and the reverse water flow, the filler shrinks and discharges the sewage and planktonic microorganisms in the filler out of the filler, so as to realize the external mass transfer of the filler;
s5, the filler on the screen gradually transits to the back water surface along with the rotation of the mass transfer paddle, the filler is gradually released by the screen on the upstream surface in the process that the mass transfer paddle gradually turns to the back water surface from the upstream surface, and the filler is completely released under the action of water permeating from the back water surface, so that the filler can suck the sewage and planktonic microorganisms again, and the internal mass transfer of the filler is realized;
s6, the mass transfer paddle blades rotate along the radial direction and the opposite direction, and the mass transfer paddle blades repeatedly perform the processes of S3-S4-S5, and continuously stir and transfer the internal mass and the external mass of the filler;
and S7, the stirring blade synchronously stirs the sewage and the suspended filler in the sewage along with the main transmission shaft.
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| CN202010349792.9A CN111422996A (en) | 2020-04-28 | 2020-04-28 | Microorganism multiphase fluidization internal mass transfer stirrer |
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| CN202010349792.9A CN111422996A (en) | 2020-04-28 | 2020-04-28 | Microorganism multiphase fluidization internal mass transfer stirrer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116586410A (en) * | 2023-07-18 | 2023-08-15 | 江苏海洋大学 | Steel slag solid waste recycling treatment system |
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|---|---|---|---|---|
| US20170252711A1 (en) * | 2013-11-08 | 2017-09-07 | Wusoa Gmbh | Agitator for mixing fluids |
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| CN212356737U (en) * | 2020-04-28 | 2021-01-15 | 江苏博尔清源环境技术有限公司 | Microorganism multiphase fluidization internal mass transfer stirrer |
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| CN110734131A (en) * | 2018-07-18 | 2020-01-31 | 光大水务（深圳）有限公司 | Biological filler stirring process based on anaerobic/anoxic tank |
| CN108726661A (en) * | 2018-08-07 | 2018-11-02 | 浙江海拓环境技术有限公司 | A kind of MBBR reactors that filler is inner circulation fluidized |
| CN109607772A (en) * | 2019-01-11 | 2019-04-12 | 哈尔滨工业大学 | One kind being thoroughly mixed formula anaerobic organism membrane reactor |
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| CN116586410A (en) * | 2023-07-18 | 2023-08-15 | 江苏海洋大学 | Steel slag solid waste recycling treatment system |
| CN116586410B (en) * | 2023-07-18 | 2023-09-22 | 江苏海洋大学 | Steel slag solid waste recycling treatment system |
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