CN112679059A - Aeration equipment for sludge treatment - Google Patents
Aeration equipment for sludge treatment Download PDFInfo
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- CN112679059A CN112679059A CN202011586366.3A CN202011586366A CN112679059A CN 112679059 A CN112679059 A CN 112679059A CN 202011586366 A CN202011586366 A CN 202011586366A CN 112679059 A CN112679059 A CN 112679059A
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- aeration
- gas
- gas collecting
- sludge treatment
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Treating Waste Gases (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention is suitable for the technical field of sludge treatment equipment, and particularly relates to an aeration device for sludge treatment, which comprises a fan, a gas collecting hood and a main box body, wherein an aeration cavity is arranged at the upper end of the main box body, a lifting stirring assembly and a sinking stirring assembly are rotatably arranged in the aeration cavity, the lifting stirring assembly is used for matching with the sinking stirring assembly to drive sludge to circularly flow in the aeration cavity, the lifting stirring assembly and the sinking stirring assembly are both connected with the fan, the gas collecting hood is fixed above the main box body through a mounting plate, the gas collecting hood is communicated with the fan through a gas collecting pipe, and the fan is fixed on the outer wall of the main box body. The aeration device for sludge treatment provided by the embodiment of the invention has the advantages of simple structure and reasonable design, malodorous gas can be concentrated by arranging the gas collecting disc, and the circulation of sludge in the aeration cavity can be promoted by lifting the stirring assembly and the sinking stirring assembly, so that the aeration efficiency is greatly improved.
Description
Technical Field
The invention belongs to the technical field of sludge treatment equipment, and particularly relates to an aeration device for sludge treatment.
Background
Sludge is a product of sludge treatment, and is an extremely complex heterogeneous body composed of organic debris, bacterial cells, inorganic particles, colloids and the like. The main characteristics of the sludge are high water content (up to more than 99 percent), high organic matter content, easy decomposition and stink generation, fine particles, small specific gravity and colloidal liquid state. It is a thick matter between liquid and solid and can be transported by a pump, but it is difficult to perform solid-liquid separation by sedimentation.
In the treatment of sludge, various treatment steps are required, including aeration process steps. In the sludge treatment process, certain methods and equipment are used for forcibly introducing air into sludge to ensure that the sludge in the tank is in contact with the air to oxygenate, and the liquid is stirred to accelerate the transfer of oxygen in the air into the liquid, prevent suspended matters in the tank from sinking, enhance the contact of organic matters in the tank with microorganisms and dissolved oxygen, and perform oxidative decomposition on the organic matters in the sludge, wherein the process of forcibly increasing the oxygen into the sludge is called aeration.
The existing aeration device has a simpler structure, and generally adopts a fan to directly introduce air into an aeration tank. Although the method is simple, the stirring effect on the sludge in the aeration tank is poor, and the generated odorous gas is directly discharged into the air, so that the air quality is influenced, and the method is not environment-friendly.
Disclosure of Invention
The embodiment of the invention aims to provide an aeration device for sludge treatment, aiming at solving the problems in the background technology.
The embodiment of the invention is realized in such a way that the aeration device for sludge treatment comprises a fan, and further comprises a gas collecting hood and a main box body, wherein an aeration cavity is arranged at the upper end of the main box body, a lifting stirring assembly and a sinking stirring assembly are rotatably arranged in the aeration cavity, the lifting stirring assembly is used for matching with the sinking stirring assembly to drive sludge to circularly flow in the aeration cavity, the lifting stirring assembly and the sinking stirring assembly are both connected with the fan, the gas collecting hood is fixed above the main box body through a mounting plate, the gas collecting hood is communicated with the fan through a gas collecting pipe, and the fan is fixed on the outer wall of the main box body.
Preferably, promote the stirring subassembly and sink the stirring subassembly and all include a set of hollow pivot, multiunit air outlet disc and multiunit auger blade, promote the stirring subassembly and sink the hollow pivot parallel arrangement in the stirring subassembly in the aeration intracavity, hollow pivot lower extreme passes through external seal bearing and is connected with the main tank body, hollow pivot is the fixed multiunit air outlet disc and multiunit auger blade that is provided with all, air outlet disc and auger blade interval set up, promote the stirring subassembly and sink the spiral opposite direction of the auger blade in the stirring subassembly, hollow pivot lower extreme internal diameter is connected with the air supply pipe through internal seal bearing, the air supply pipe is used for giving vent to anger the dish air feed, and be connected with the fan.
Preferably, the dish of giving vent to anger is provided with the multiunit runner including the dish main part of giving vent to anger and nozzle in the dish main part of giving vent to anger, and hollow rotating shaft fixes on dish main part external diameter of giving vent to anger, and hollow rotating shaft is through slotted hole and the runner intercommunication that sets up, and the nozzle embedding sets up on dish main part external diameter of giving vent to anger, and the one end that is close to hollow rotating shaft is provided with the check valve, and the check valve setting is in the runner, and the direction of effluenting of nozzle.
Preferably, the bottom of the main box body is provided with a deodorization box, deodorization liquid is contained in the deodorization box, an air outlet pipe is arranged in the deodorization box, a plurality of air holes are formed in the air outlet pipe, and the upper end of the deodorization box is communicated with the lifting stirring assembly and the sinking stirring assembly.
Preferably, the gas collecting channel comprises a gas collecting channel main body and a filter screen, the filter screen is arranged in the gas collecting channel main body, a rotating seat is fixedly arranged at the core part of the filter screen, a rotating shaft is arranged at the lower end in the rotating seat in a rotating mode, two sets of scraping rules are symmetrically arranged on the outer diameter of the rotating shaft and abut against the filter screen, a foam discharging hole is formed in the outer diameter of the gas collecting channel main body, and the foam discharging hole and the scraping rules are located in the same plane.
Preferably, the two sides of the upper end of the main box body are rotatably provided with rotating supports, the upper ends of the two groups of rotating supports are fixedly provided with mounting plates, the outer wall of the upper end of the main box body is fixedly provided with a transverse baffle and a vertical baffle, the outer wall of the upper end of the main box body is further rotatably provided with an air spring, and the end part of the air spring is further fixedly provided with a fixing fork.
Preferably, the bottom of the main box body is provided with a moving assembly.
The aeration device for sludge treatment provided by the embodiment of the invention has the advantages of simple structure and reasonable design, malodorous gas can be concentrated by arranging the gas collecting disc, and the circulation of sludge in the aeration cavity can be promoted by lifting the stirring assembly and the sinking stirring assembly, so that the aeration efficiency is greatly improved.
Drawings
FIG. 1 is a schematic view of a partial structure of an aeration apparatus for sludge treatment according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a cross-sectional view of an air outlet disk according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a gas collecting channel according to an embodiment of the present invention;
FIG. 5 is an external view showing a partial structure of an aeration apparatus for sludge treatment according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an air outlet pipe according to an embodiment of the present invention.
In the drawings: 1. a main box body; 2. a fan; 3. a deodorization box; 4. an aeration cavity; 5. a gas-collecting hood; 6. a gas collecting pipe; 7. mounting a plate; 8. rotating the bracket; 9. a hollow rotating shaft; 10. a screw blade; 11. an air outlet disc; 12. an air outlet pipe; 13. a gas supply pipe; 14. an outer seal bearing; 15. an inner seal bearing; 16. an air outlet disc main body; 17. a flow channel; 18. a nozzle; 19. a gas-collecting channel main body; 20. filtering with a screen; 21. a rotating seat; 22. scraping a ruler; 23. foam discharging holes; 24. a one-way valve; 25. air holes; 26. a vertical baffle plate; 27. a transverse baffle plate; 28. a gas spring; 29. a fixed fork.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Sludge treatment is a process of carrying out reduction, stabilization and harmless treatment on sludge. The higher the degree of wastewater treatment, the more sludge residue will be produced to be treated. A general sewage treatment plant must be provided with a sludge treatment facility unless the sewage is treated using land treatment or a sewage pond. For modern sewage treatment plants, the treatment and disposal of sludge has become the most complex and costly part of the operation of sewage treatment systems.
As shown in fig. 1 and 2, a partial structural schematic diagram of an aeration apparatus for sludge treatment provided by an embodiment of the present invention includes a fan 2, the aeration apparatus for sludge treatment further includes a gas collecting hood 5 and a main tank 1, an aeration chamber 4 is provided at an upper end of the main tank 1, a lifting stirring assembly and a sinking stirring assembly are rotatably provided in the aeration chamber 4, the lifting stirring assembly is used for matching with the sinking stirring assembly to drive sludge to circularly flow in the aeration chamber 4, the lifting stirring assembly and the sinking stirring assembly are both connected with the fan 2, the gas collecting hood 5 is fixed above the main tank 1 through a mounting plate 7, the gas collecting hood 5 is communicated with the fan 2 through a gas collecting pipe 6, and the fan 2 is fixed on an outer wall of the main tank 1.
In one embodiment of the present invention, when in use, the sludge is first introduced into the aeration chamber 4, then the fan 2 supplies air to the lifting stirring component and the sinking stirring component simultaneously, the air flow is discharged through the lifting stirring component and the sinking stirring component, the lifting stirring component and the sinking stirring component are driven by the reaction force of the air flow to stir the sludge, the sludge circularly flows in the aeration chamber 4, and the gas-collecting hood 5 directly sucks in malodorous gas and air, thereby avoiding air pollution. The aeration device for sludge treatment provided by the embodiment of the invention has the advantages of simple structure and reasonable design, malodorous gas can be concentrated by arranging the gas collecting disc 5, and the circulation of sludge in the aeration cavity 4 can be promoted by the lifting stirring assembly and the sinking stirring assembly, so that the aeration efficiency is greatly improved.
As shown in fig. 1, 2 and 3, as a preferred embodiment of the present invention, the lifting stirring assembly and the sinking stirring assembly each include a set of hollow rotating shaft 9, a plurality of sets of gas outlet discs 11 and a plurality of sets of auger blades 10, the hollow rotating shaft 9 in the lifting stirring assembly and the sinking stirring assembly are disposed in parallel in the aeration chamber 4, the lower end of the hollow rotating shaft 9 is connected to the main box 1 through an external sealed bearing 14, the hollow rotating shaft 9 is fixedly provided with a plurality of sets of gas outlet discs 11 and a plurality of sets of auger blades 10, the gas outlet discs 11 and the auger blades 10 are disposed at intervals, the spiral directions of the lifting stirring assembly and the auger blades 10 in the sinking stirring assembly are opposite, the inner diameter of the lower end of the hollow rotating shaft 9 is connected to a gas supply pipe 13 through an internal sealed bearing 15, and the gas supply pipe 13 is used for.
As shown in fig. 1, 2 and 3, as a preferred embodiment of the present invention, the gas outlet disc 11 includes a gas outlet disc main body 16 and a nozzle 18, a plurality of sets of flow channels 17 are disposed in the gas outlet disc main body 16, a hollow rotating shaft 9 is fixed on an outer diameter of the gas outlet disc main body 16, the hollow rotating shaft 9 is communicated with the flow channels 17 through disposed slotted holes, the nozzle 18 is embedded in the outer diameter of the gas outlet disc main body 16, and one end close to the hollow rotating shaft 9 is provided with a check valve 24, the check valve 24 is disposed in the flow channel 17, and an outflow direction of the nozzle 18 is tangential to the outer diameter of the gas outlet disc main body.
In one example of the invention, when in use, the fan 2 is started, the fan 2 sucks air through the gas collecting hood 5, then the air is introduced into the air supply pipe 13, the air supply pipe 13 guides the air into the hollow rotating shaft 9, the air enters the flow channel 17 through the slotted holes, then enters the nozzle 18 through the flow channel 17, and finally enters the aeration cavity 4 through the nozzle 18, the nozzle 18 is uniformly distributed with a plurality of groups, and the outflow directions of the nozzles 18 are the same, so the air outlet disc main body 16 will drive the hollow rotating shaft 9 to rotate under the reaction of the air flow, the hollow rotating shaft 9 will drive the auger blades 10 to rotate under the sealing of the outer sealed bearing 14, the spiral directions of the auger blades 10 in the lifting stirring assembly and the sinking stirring assembly are opposite, therefore, sludge close to the lifting stirring assembly will rise, sludge close to the sinking stirring assembly will sink, and sludge will circulate in the aeration cavity 4, compared with the traditional aeration device, the aeration device directly aerates through a single large-diameter pipeline, so that the contact area between air and sludge is smaller, in the invention, a plurality of nozzles are used for spraying, so that the contact area between air and sludge can be increased, the air flow sprayed by the nozzle 18 in the lifting stirring assembly can exert a certain driving force on the auger blade 10 in the sinking stirring assembly, and conversely, the air flow sprayed by the nozzle 18 in the sinking stirring assembly can exert a certain driving force on the auger blade 10 in the lifting stirring assembly.
As shown in fig. 1 and 6, as a preferred embodiment of the present invention, a deodorization tank 3 is disposed at the bottom of a main tank 1, a deodorization liquid is contained in the deodorization tank 3, an air outlet pipe 12 is disposed in the deodorization tank 3, a plurality of air holes 25 are disposed on the air outlet pipe 12, and the upper end of the deodorization tank 3 is communicated with a lifting stirring assembly and a sinking stirring assembly.
In one embodiment of the present invention, the gas collecting hood 5 will suck the malodorous gas and absorb the malodorous gas by the deodorizing liquid placed in the deodorizing tank 3, while the oxygen in the air is not absorbed, so that the subsequent aeration effect is not affected.
As shown in fig. 1 and 4, as a preferred embodiment of the present invention, the gas collecting hood 5 includes a gas collecting hood main body 19 and a filter screen 20, the filter screen 20 is disposed in the gas collecting hood main body 19, a rotating base 21 is fixedly disposed at a core of the filter screen 20, a rotating shaft is rotatably disposed at a lower end in the rotating base 21, two sets of scrapers 22 are symmetrically disposed on an outer diameter of the rotating shaft, the two sets of scrapers 22 are both abutted against the filter screen 20, a foam discharging hole 23 is disposed on an outer diameter of the gas collecting hood main body 19, and the foam discharging hole 23 and the scrapers 22 are located in the same plane.
As shown in fig. 1 and 5, as a preferred embodiment of the present invention, the two sides of the upper end of the main box 1 are rotatably provided with the rotating brackets 8, the upper ends of the two groups of rotating brackets 8 are fixed with the mounting plate 7, the outer wall of the upper end of the main box 1 is fixedly provided with the horizontal baffle plate 27 and the vertical baffle plate 26, the outer wall of the upper end of the main box 1 is further rotatably provided with the gas spring 28, and the end of the gas spring 28 is further fixedly provided with the fixing fork 29.
In an embodiment of the present invention, when sludge needs to be put into the aeration chamber 4, the rotating bracket 8 is rotated first to make the rotating bracket 8 abut against the horizontal baffle 27, then the gas spring 28 presses the fixed fork 29 against the rotating bracket 8, at this time, the mounting plate 7 drives the gas collecting hood 5 to move to one side of the main box 1, then sludge is led into the aeration chamber 4, then the rotating bracket 8 is rotated reversely to make the rotating bracket 8 abut against the vertical baffle 26, further the gas spring 28 presses the fixed fork 29 against the rotating bracket 8, and malodorous gas is absorbed by the gas collecting hood 5.
As shown in fig. 1, as a preferred embodiment of the present invention, a moving assembly is provided at the bottom of the main casing 1.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides an aeration equipment for sludge treatment, including fan (2), a serial communication port, aeration equipment for sludge treatment still includes gas collecting channel (5) and main tank body (1), main tank body (1) upper end is provided with aeration chamber (4), aeration chamber (4) internal rotation is provided with promotes stirring subassembly and sinks the stirring subassembly, it is used for the cooperation to sink stirring subassembly drive mud and flows in aeration chamber (4) internal circulation to promote the stirring subassembly and sink the stirring subassembly and all be connected with fan (2), gas collecting channel (5) are fixed in main tank body (1) top through mounting panel (7), gas collecting channel (5) are through gas collecting pipe (6) and fan (2) intercommunication, fan (2) are fixed on main tank body (1) outer wall.
2. The aeration device for sludge treatment according to claim 1, wherein the lifting stirring component and the sinking stirring component each comprise a set of hollow rotating shaft (9), a plurality of sets of gas outlet discs (11) and a plurality of sets of auger blades (10), the hollow rotating shafts (9) in the lifting stirring component and the sinking stirring component are arranged in the aeration chamber (4) in parallel, the lower end of the hollow rotating shaft (9) is connected with the main box body (1) through an outer sealing bearing (14), the hollow rotating shaft (9) is fixedly provided with a plurality of sets of gas outlet discs (11) and a plurality of sets of auger blades (10), the gas outlet discs (11) and the auger blades (10) are arranged at intervals, the spiral directions of the lifting stirring component and the auger blades (10) in the sinking stirring component are opposite, the inner diameter of the lower end of the hollow rotating shaft (9) is connected with a gas supply pipe (13) through an inner sealing bearing (15), the gas supply pipe (13) is used for supplying gas, and is connected with the fan (2).
3. The aeration device for sludge treatment according to claim 2, wherein the gas outlet disc (11) comprises a gas outlet disc main body (16) and nozzles (18), a plurality of groups of flow channels (17) are arranged in the gas outlet disc main body (16), the hollow rotating shaft (9) is fixed on the outer diameter of the gas outlet disc main body (16), the hollow rotating shaft (9) is communicated with the flow channels (17) through arranged slotted holes, the nozzles (18) are embedded in the outer diameter of the gas outlet disc main body (16), one end of the hollow rotating shaft (9) is provided with a one-way valve (24), the one-way valve (24) is arranged in the flow channels (17), and the outflow direction of the nozzles (18) is tangential to the outer diameter of the gas outlet disc main body (16).
4. The aeration apparatus for sludge treatment according to claim 1, wherein the bottom of the main tank (1) is provided with a deodorization tank (3), deodorization liquid is contained in the deodorization tank (3), an air outlet pipe (12) is arranged in the deodorization tank (3), the air outlet pipe (12) is provided with a plurality of air holes (25), and the upper end of the deodorization tank (3) is communicated with the lifting stirring component and the sinking stirring component.
5. The aeration device for sludge treatment according to any one of claims 1 to 4, wherein the gas collecting hood (5) comprises a gas collecting hood main body (19) and a filter screen (20), the filter screen (20) is arranged in the gas collecting hood main body (19), a rotary seat (21) is fixedly arranged at the core part of the filter screen (20), a rotary shaft is rotatably arranged at the lower end in the rotary seat (21), two sets of scraping rules (22) are symmetrically arranged on the outer diameter of the rotary shaft, both the two sets of scraping rules (22) are abutted against the filter screen (20), a foam discharging hole (23) is arranged on the outer diameter of the gas collecting hood main body (19), and the foam discharging hole (23) and the scraping rules (22) are positioned in the same plane.
6. An aeration apparatus according to claim 1, wherein rotary brackets (8) are rotatably provided at both sides of the upper end of the main tank (1), mounting plates (7) are fixed to the upper ends of the two groups of rotary brackets (8), a horizontal baffle plate (27) and a vertical baffle plate (26) are fixedly provided on the outer wall of the upper end of the main tank (1), an air spring (28) is rotatably provided on the outer wall of the upper end of the main tank (1), and a fixing fork (29) is fixedly provided at the end of the air spring (28).
7. An aeration apparatus for sludge treatment according to claim 1, wherein a moving means is provided at the bottom of the main tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011586366.3A CN112679059B (en) | 2020-12-29 | 2020-12-29 | Aeration equipment for sludge treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011586366.3A CN112679059B (en) | 2020-12-29 | 2020-12-29 | Aeration equipment for sludge treatment |
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| Publication Number | Publication Date |
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| CN112679059A true CN112679059A (en) | 2021-04-20 |
| CN112679059B CN112679059B (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011586366.3A Active CN112679059B (en) | 2020-12-29 | 2020-12-29 | Aeration equipment for sludge treatment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385537A (en) * | 2022-08-16 | 2022-11-25 | 滁州职业技术学院 | Activation treatment equipment based on environmental engineering sludge microorganisms |
| CN117505499A (en) * | 2024-01-04 | 2024-02-06 | 河北尚德环境工程有限公司 | Refuse landfill deodorizing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104549014A (en) * | 2015-01-06 | 2015-04-29 | 江苏菲力环保工程有限公司 | Vertical lift type stirring device for sludge disposal |
| CN108658221A (en) * | 2018-05-14 | 2018-10-16 | 合肥中安清源环保科技有限公司 | A kind of activated sludge aeration tank air supply adjustment system |
-
2020
- 2020-12-29 CN CN202011586366.3A patent/CN112679059B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104549014A (en) * | 2015-01-06 | 2015-04-29 | 江苏菲力环保工程有限公司 | Vertical lift type stirring device for sludge disposal |
| CN108658221A (en) * | 2018-05-14 | 2018-10-16 | 合肥中安清源环保科技有限公司 | A kind of activated sludge aeration tank air supply adjustment system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115385537A (en) * | 2022-08-16 | 2022-11-25 | 滁州职业技术学院 | Activation treatment equipment based on environmental engineering sludge microorganisms |
| CN117505499A (en) * | 2024-01-04 | 2024-02-06 | 河北尚德环境工程有限公司 | Refuse landfill deodorizing device |
| CN117505499B (en) * | 2024-01-04 | 2024-04-16 | 河北尚德环境工程有限公司 | Refuse landfill deodorizing device |
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| CN112679059B (en) | 2022-10-21 |
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