CN215627504U - Municipal sludge pretreatment system based on aerobic granular sludge SBR reactor - Google Patents
Municipal sludge pretreatment system based on aerobic granular sludge SBR reactor Download PDFInfo
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- CN215627504U CN215627504U CN202121412983.1U CN202121412983U CN215627504U CN 215627504 U CN215627504 U CN 215627504U CN 202121412983 U CN202121412983 U CN 202121412983U CN 215627504 U CN215627504 U CN 215627504U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The utility model provides a municipal sludge pretreatment system based on an aerobic granular sludge SBR reactor, which is characterized by comprising the following components: the sludge concentration tank, the sludge buffer tank and the sludge concentration tanks are connected in sequence through a sludge discharge system; the mud buffer tank includes: the buffer pool main part, in coordination with a tub of setting tank by the multiunit slope set up in coordination with a filter plate and constitute, sludge thickening jar includes: the utility model discloses a main tank support, a main tank body, a separation chamber and a precipitation drainage chamber, which has the advantages that: the sludge is effectively dehydrated through the sludge buffer tank, the sludge concentration tank and the secondary dehydration dryer, and the transportation cost in the transportation process is reduced.
Description
Technical Field
The utility model belongs to the technical field of sludge treatment, and particularly relates to a municipal sludge pretreatment system based on an aerobic granular sludge SBR reactor.
Background
SBR (sequencing Batch Reactor Activated Sludge process) is a short name of a sequential intermittent Activated Sludge process, is an Activated Sludge sewage treatment technology which operates in an intermittent aeration mode, is one of the most widely applied technologies in the technical field of sewage treatment at present, and granular Sludge appears along with the treatment of organic industrial wastewater. The aerobic granular sludge has the advantages of both aerobic and activated sludge process and biomembrane process, and has partial anaerobic and anaerobic biological treatment function, so that it has unique superiority in biomass, oxygen utilization, treating effect, etc.
Sludge in the sludge concentration tank stage of the SBR reactor is subjected to the action of sludge gravity sedimentation, so that the purpose of sludge-water separation is achieved, the separated sludge belongs to municipal sludge, and subsequent mixed incineration, low-temperature drying and other further treatment are carried out after uniform recovery, but the water content of the sludge separated in the sludge concentration tank stage is high, so that the transportation cost is greatly increased in the recovery and transportation process, and the subsequent treatment of the municipal sludge is not facilitated. There is a need for a system that can dewater sludge produced in a sludge thickener stage to better meet the actual needs.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, it is an object of the present invention to provide a municipal sludge pre-treatment system based on an aerobic granular sludge SBR reactor for pre-dewatering sludge produced in a sludge thickener stage to overcome the above-mentioned disadvantages of the prior art.
The utility model provides a municipal sludge pretreatment system based on an aerobic granular sludge SBR reactor, which comprises: the sludge concentration tank, the sludge buffer tank and the sludge concentration tanks are connected in sequence through a sludge discharge system;
the sludge discharge system includes: a low-pressure sludge discharge pipe which is connected with a sludge discharge port at the bottom of the sludge thickening tank and a sludge inlet of the sludge buffer tank, and a low-pressure sludge pump which is arranged on the high-pressure sludge discharge pipe; a high-pressure sludge discharge pipe connecting the sludge buffer tank and the sludge concentration tank, and a high-pressure sludge pump arranged on the high-pressure sludge discharge pipe;
the sludge buffer tank comprises: the auxiliary pipe sedimentation tank is composed of a plurality of groups of auxiliary pipe filter plates which are obliquely arranged, a water filtering layer is arranged on the auxiliary pipe filter plates, the sludge discharging pipes are positioned above the water filtering layer, the drain pipe is positioned below the water filtering layer, a stirrer is arranged on the main body of the buffer tank above the auxiliary pipe sedimentation tank, and a stirring frame of the stirrer is positioned in the auxiliary pipe sedimentation tank;
the sludge concentration tank includes: the main tank support, install the main tank body on the main tank support, be located the separation chamber on main tank body upper portion, be located the sediment drainage chamber of main tank body bottom, main tank body top is provided with the mud pusher who stretches into the separation chamber, mud pusher and sediment drainage chamber intercommunication, sediment drainage chamber is trapezium structure, there is the drainage layer and is located the outlet of drainage layer below sediment drainage chamber bottom, main tank support below is provided with the drain pipe of being connected with the outlet to and drain pump with water piping connection, be provided with into mud mouth on the main tank body, go into mud mouth and high-pressure sludge sewage pipe connection, the mud mouth has been seted up on the lateral wall of drainage layer top, the mud mouth communicates with the connecting pipe that leads to more.
Preferably, the sludge dewatering device further comprises a secondary dewatering dryer for finally dewatering the sludge discharged by the sludge concentration tank, the sludge after the secondary dewatering dryer is used does not need subsequent municipal sludge treatment, and the secondary dewatering dryer is a stacked screw type sludge dewatering machine. Fold spiral shell formula sludge dewaterer includes: the sludge dewatering tank is in a circular tube shape, the sludge inlet is positioned on one side of the sludge dewatering tank, the sludge outlet is positioned on the other side of the sludge dewatering tank, the filtrate wall plates are uniformly embedded on the inner wall of the sludge dewatering tank, the rotary vane mechanism is rotatably connected inside the sludge dewatering tank, the left suspension which is positioned inside the sludge dewatering tank and is close to one side of the sludge inlet and used for supporting the rotary vane mechanism, the right suspension which is positioned inside the sludge dewatering tank and is close to one side of the sludge outlet and used for supporting the rotary vane mechanism, and the back pressure plate and the driver which drive the rotary vane mechanism.
Preferably, the rotating plate mechanism includes: the rotating shaft, install the rotatory epaxial multiunit rotating vane, the multiunit rotating vane reduces from left to right the interval in proper order, every group rotating vane is dislocation symmetry setting.
Preferably, the left suspension and the right suspension are symmetrically arranged, and both the left suspension and the right suspension are composed of a fixed ring and a movable ring which is rotatably connected inside the fixed ring.
The utility model has the following beneficial effects:
1. the sludge from the sludge concentration tank is discharged into the sludge buffer tank for buffering the working pressure of the sludge concentration tank and primary dehydration through the low-pressure sludge discharge pipe for simple dehydration, so that the working pressure of the sludge concentration tank can be relieved. So that the sludge concentration tank can dehydrate the sludge in the sludge buffer tank at night in a staggered time.
2. The sludge concentration tank disclosed by the utility model is used for carrying out secondary dehydration on the sludge in the sludge buffer tank, so that the water content of the sludge is reduced to about half, and the requirements of outward transportation and treatment requirements of subsequent mixed incineration, low-temperature drying and the like are met.
3. According to the utility model, the secondary dehydration dryer for finally dehydrating the sludge discharged from the sludge concentration tank is added, so that the water content of the sludge is reduced to more than 60% through the secondary dehydration dryer, municipal centralized treatment on the sludge is not required, the current sanitary landfill requirement is met, and good practicability and practical popularization and application values are provided for village and town-level sewage treatment.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated as the same becomes better understood by reference to the following description taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a front view of the overall structure of the present invention.
FIG. 2 is a schematic view of the structure of the sludge thickening tank of the present invention.
FIG. 3 is a schematic view of the structure of the sludge buffer tank of the present invention.
FIG. 4 is a schematic diagram of the structure of the secondary dewatering dryer of the present invention.
Fig. 5 is a schematic view of the left suspension structure of the present invention.
Description of the drawings: the sludge concentration tank 1, the sludge buffer tank 2, the buffer tank main body 201, the auxiliary pipe settling tank 202, the sludge discharge pipe 203, the water discharge pipe 204, the auxiliary pipe filter plate 205, the water filter layer 206, the stirrer 207, the stirring frame 208, the sludge dewatering machine room 3, the sludge concentration tank 4, the main tank support 401, the main tank body 402, the separation chamber 403, the sedimentation water discharge chamber 404, the sludge pushing device 405, the water discharge port 406, the water discharge pipe 407, the water discharge pump 408, the sludge inlet 409, the sludge discharge port 410, the sludge discharge system 5, the low pressure sludge discharge pipe 501, the low pressure sludge pump 502, the high pressure sludge discharge pipe 503, the high pressure sludge pump 504, the multi-way connection pipe 505, the low pressure sludge pump 506, the secondary dewatering dryer 6, the sludge dewatering tank 601, the sludge inlet 602, the sludge outlet 603, the filtrate wall plate 604, the rotary vane mechanism 605, the left suspension 606, the right suspension 607, the back pressure plate 608, the driver 611, the rotary shaft 610, the rotary vane 609, the fixed ring 612, the fixed ring 609 and the like, A movable ring 613.
Detailed Description
In order to make the technical solutions and advantages thereof better understood by those skilled in the art, the present application is described in detail below with reference to the accompanying drawings, but the present application is not limited to the scope of the present invention.
Referring to FIGS. 1-2: the municipal sludge pretreatment system based on the aerobic granular sludge SBR reactor provided in the embodiment comprises: the sludge dewatering equipment comprises a sludge buffer tank 2 communicated with a sludge concentration tank 1, a sludge dewatering machine room 3 communicated with the sludge buffer tank 1, and a plurality of groups of sludge concentration tanks 4 installed in the sludge dewatering machine room 3, wherein the sludge concentration tank 1, the sludge buffer tank 2 and two sludge concentration tanks 4 are sequentially connected through a sludge discharge system 5.
The sludge discharge system 5 in the present embodiment includes: a low-pressure sludge discharge pipe 501 for connecting a sludge discharge port at the bottom of the sludge concentration tank 1 with a sludge inlet of the sludge buffer tank 2, and a low-pressure sludge pump 502 arranged on the high-pressure sludge discharge pipe 501; a high-pressure sludge discharge pipe 503 connecting the sludge buffer tank 2 and the sludge concentration tank 3, and a high-pressure sludge pump 504 arranged on the high-pressure sludge discharge pipe 503; a multi-way connecting pipe 505 for connecting the sludge concentration tank 3 and the secondary dehydration dryer 6, and a low-pressure sludge pump 506 arranged at the tail part of the multi-way connecting pipe 505.
The sludge buffer tank 2 in this embodiment includes: the buffer pool main part 201 that is the structure of falling trapezium, be located buffer pool main part 201 bottom manage the setting tank 202 in tandem, be located manage the setting tank 202 lateral part in tandem mud pipe 203 and be located manage the drain pipe 204 of setting tank 202 bottom in tandem, manage the setting tank 202 in tandem by the multiunit slope and constitute in tandem filter plate 205, be provided with water filtering layer 206 on the filter plate 205 in tandem, mud pipe 203 is located water filtering layer 206 top, drain pipe 204 is located water filtering layer 206 below, be provided with agitator 207 on the buffer pool main part 201 of managing the setting tank 202 top in tandem, agitator 207's stirring frame 208 is located manage the setting tank 202 in tandem.
The sludge thickening tank 4 in this embodiment includes: a main tank support 401, a main tank body 402 mounted on the main tank support 401, a separation chamber 403 positioned at an upper portion of the main tank body 402, a settling drain chamber 404 positioned at a bottom portion of the main tank body 402, the top of the main tank 402 is provided with a sludge pushing device 405 extending into the separation chamber 403, the sludge pushing device 405 is communicated with the precipitation drainage chamber 404, the precipitation drainage chamber 404 is in a trapezoidal structure, the bottom of the settling drainage chamber 404 is provided with a drainage layer 405 and a drainage port 406 positioned below the drainage layer 405, a drain pipe 407 connected to the drain port 406 is provided below the main tank support 401, and a drainage pump 408 connected with a drainage pipe 407, a sludge inlet 409 is arranged on the main tank body 402, the sludge inlet 409 is connected with a high-pressure sludge discharge pipe 503, a sludge discharge port 410 is arranged on the side wall above the water filtering layer 405, the sludge discharge port 410 is communicated with a multi-way connecting pipe 505, and the sludge pushing device 405 is a filter press.
The sludge dewatering device further comprises a secondary dewatering dryer 6 for performing final dewatering on the sludge discharged by the sludge concentration tank 4, the sludge after the secondary dewatering dryer 6 is used does not need subsequent municipal sludge treatment, and the secondary dewatering dryer 6 is a stacked screw type sludge dewatering machine. Fold spiral shell formula sludge dewaterer includes: the sludge dewatering device comprises a sludge dewatering tank 601 in a circular tube shape, a sludge inlet 602 positioned on one side of the sludge dewatering tank 601, a sludge outlet 603 positioned on the other side of the sludge dewatering tank 601, filtrate wall plates 604 uniformly embedded on the inner wall of the sludge dewatering tank 601, a rotary vane mechanism 605 rotatably connected inside the sludge dewatering tank 601, a left suspension 606 positioned on one side of the sludge dewatering tank 601 close to the sludge inlet 602 and used for supporting the rotary vane mechanism 605, a right suspension 607 positioned on one side of the sludge dewatering tank 601 close to the sludge outlet 603 and used for supporting the rotary vane mechanism 605, a back pressure plate 608 for driving the rotary vane mechanism 605 and a driver 609. The rotary plate mechanism 605 includes: the rotating shaft 610 and a plurality of groups of rotating blades 611 arranged on the rotating shaft 610, wherein the distance between the plurality of groups of rotating blades 611 is sequentially reduced from left to right, and each group of rotating blades 611 are arranged symmetrically in a staggered manner. The driver 609 penetrates through the back pressure plate 608 and is connected with the rotating shaft 610 and drives the rotating shaft 610 to rotate. The left suspension 606 and the right suspension 607 are symmetrically arranged, the left suspension 606 and the right suspension 607 are both composed of a fixed ring 612 and a movable ring 613 rotatably connected inside the fixed ring 612, the fixed ring 612 is installed on the sludge dewatering tank 601, and the movable ring 613 is in contact with the filtrate wall plate 604.
The working principle is as follows: the sludge with high water content in the sludge concentration tank 1 is discharged into the sludge buffer tank 2 through the low-pressure sludge drain pipe 501 and the low-pressure sludge pump 502, and the sludge buffer tank 2 is used for storing the sludge and simply filtering the water of the sludge through the auxiliary pipe settling tank 202. Through high-pressure sludge blow off pipe 503 and high-pressure sludge pump 504 with the sludge discharge sludge thickening jar 4 in the sludge buffer pool 2 in, sludge thickening jar 4 dewaters mud through mud pusher 405, there are two choices through the mud of sludge thickening jar 4, the first is that direct concentrated transportation carries out mud centralized processing to the municipal administration, perhaps bury after 6 dehydration through secondary dehydration dryer, secondary dehydration dryer 6 carries out the final dehydration through the cooperation of the filtrating wallboard 604 cooperation rotary vane mechanism 605 and the back pressure plate 608 in the sludge dewatering jar 601.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A municipal sludge pretreatment system based on an aerobic granular sludge SBR reactor, which is characterized by comprising: the sludge concentration tank, the sludge buffer tank and the sludge concentration tanks are connected in sequence through a sludge discharge system;
the sludge discharge system includes: a low-pressure sludge discharge pipe which is connected with a sludge discharge port at the bottom of the sludge thickening tank and a sludge inlet of the sludge buffer tank, and a low-pressure sludge pump which is arranged on the high-pressure sludge discharge pipe; a high-pressure sludge discharge pipe connecting the sludge buffer tank and the sludge concentration tank, and a high-pressure sludge pump arranged on the high-pressure sludge discharge pipe;
the sludge buffer tank comprises: the auxiliary pipe sedimentation tank is composed of a plurality of groups of auxiliary pipe filter plates which are obliquely arranged, a water filtering layer is arranged on the auxiliary pipe filter plates, the sludge discharging pipes are positioned above the water filtering layer, the drain pipe is positioned below the water filtering layer, a stirrer is arranged on the main body of the buffer tank above the auxiliary pipe sedimentation tank, and a stirring frame of the stirrer is positioned in the auxiliary pipe sedimentation tank;
the sludge concentration tank includes: the main tank support, install the main tank body on the main tank support, be located the separation chamber on main tank body upper portion, be located the sediment drainage chamber of main tank body bottom, main tank body top is provided with the mud pusher who stretches into the separation chamber, mud pusher and sediment drainage chamber intercommunication, sediment drainage chamber is trapezium structure, there is the drainage layer and is located the outlet of drainage layer below sediment drainage chamber bottom, main tank support below is provided with the drain pipe of being connected with the outlet to and drain pump with water piping connection, be provided with into mud mouth on the main tank body, go into mud mouth and high-pressure sludge sewage pipe connection, the mud mouth has been seted up on the lateral wall of drainage layer top, the mud mouth communicates with the connecting pipe that leads to more.
2. The municipal sludge pretreatment system based on the aerobic granular sludge SBR reactor as claimed in claim 1, further comprising a secondary dewatering dryer for final dewatering of the sludge discharged from the sludge thickening tank, wherein the sludge after the secondary dewatering dryer is used without subsequent municipal sludge treatment, and the secondary dewatering dryer is a stacked screw type sludge dewatering machine; fold spiral shell formula sludge dewaterer includes: the sludge dewatering tank is in a circular tube shape, the sludge inlet is positioned on one side of the sludge dewatering tank, the sludge outlet is positioned on the other side of the sludge dewatering tank, the filtrate wall plates are uniformly embedded on the inner wall of the sludge dewatering tank, the rotary vane mechanism is rotatably connected inside the sludge dewatering tank, the left suspension which is positioned inside the sludge dewatering tank and is close to one side of the sludge inlet and used for supporting the rotary vane mechanism, the right suspension which is positioned inside the sludge dewatering tank and is close to one side of the sludge outlet and used for supporting the rotary vane mechanism, and the back pressure plate and the driver which drive the rotary vane mechanism.
3. The aerobic granular sludge SBR reactor-based municipal sludge pretreatment system of claim 2, wherein the rotary vane mechanism comprises: the rotating shaft, install the rotatory epaxial multiunit rotating vane, the multiunit rotating vane reduces from left to right the interval in proper order, every group rotating vane is dislocation symmetry setting.
4. The municipal sludge pretreatment system based on the aerobic granular sludge SBR reactor as claimed in claim 2, wherein the left and right suspensions are symmetrically arranged, and both the left and right suspensions are composed of a fixed ring and a movable ring rotatably connected inside the fixed ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121412983.1U CN215627504U (en) | 2021-06-24 | 2021-06-24 | Municipal sludge pretreatment system based on aerobic granular sludge SBR reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121412983.1U CN215627504U (en) | 2021-06-24 | 2021-06-24 | Municipal sludge pretreatment system based on aerobic granular sludge SBR reactor |
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| Publication Number | Publication Date |
|---|---|
| CN215627504U true CN215627504U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121412983.1U Active CN215627504U (en) | 2021-06-24 | 2021-06-24 | Municipal sludge pretreatment system based on aerobic granular sludge SBR reactor |
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| CN (1) | CN215627504U (en) |
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2021
- 2021-06-24 CN CN202121412983.1U patent/CN215627504U/en active Active
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