UASB (upflow anaerobic sludge blanket) reaction device for sewage treatment

Abstract

The invention relates to the technical field of UASB (Upflow Anaerobic Sludge Blanket) reaction devices, and discloses a UASB reaction device for sewage treatment, which comprises a UASB reactor body, a first guide plate and a filter mechanism, a three-phase separator is arranged in the UASB reactor body, the filter mechanism for secondary filtration of sewage is arranged between the UASB reactor body and the three-phase separator, and the first guide plate is arranged in the UASB reactor body. The interior of the UASB reactor body is fixedly connected with a first guide plate, the interior of the UASB reactor body is fixedly connected with a second guide plate, the interior of the UASB reactor body is fixedly connected with a third guide plate, and the bottom of the third guide plate is fixedly connected with a first guide disc. Sewage is guided in the anaerobic sludge bed through the second guide plate, the first guide disc, the third guide plate and the first guide plate, so that the sewage is dispersed more uniformly and is in full contact with the anaerobic sludge bed, and therefore, full reaction is performed, the contact is more comprehensive, and an ideal reaction treatment effect is achieved.

Description

Technical Field

[0001] The present invention relates to the field of UASB reaction devices, and in particular to a UASB reaction device for sewage treatment. Background Art

[0002] The UASB reaction device for sewage treatment is an efficient anaerobic biological treatment system. It uses anaerobic microorganisms to decompose organic matter in wastewater in an anaerobic environment, converting it into utilizable resources such as biogas, and at the same time purifying the wastewater. The UASB reaction device adopts a specific water inlet mode to make the wastewater fully contact with the anaerobic sludge bed in the reactor, ensuring that the organic matter is effectively degraded. This device has the advantages of high treatment efficiency, stable operation, and low energy consumption, and is widely used in the treatment of various organic wastewater.

[0003] In the prior art, the water inlet device is usually arranged at the bottom of the reactor, responsible for evenly introducing the wastewater into the reaction zone. However, the position of the water inlet device is fixed, and the water inlet position is also relatively fixed. The fixed water inlet position may cause excessive local water flow, forming a short-circuit flow, and the water flow is always in one position, only contacting the anaerobic sludge bed in a fixed area, causing some wastewater to flow out of the reactor without sufficient anaerobic treatment, affecting the treatment effect and the uniformity of sewage treatment. Therefore, it is necessary to improve a UASB reaction device for sewage treatment to solve the above problems. Summary of the Invention

[0004] In order to overcome the problem that the relatively fixed water inlet position may cause some wastewater to flow out of the reactor without sufficient anaerobic treatment.

[0005] The technical solution of the present invention is: a UASB reaction device for sewage treatment, including a UASB reactor body, and further including a first guide plate and a filtering mechanism. A three-phase separator is arranged inside the UASB reactor body, and a filtering mechanism for secondary filtration of sewage is arranged between the UASB reactor body and the three-phase separator. A first guide plate is fixedly connected inside the UASB reactor body, a second guide plate is fixedly connected inside the UASB reactor body, a third guide plate is fixedly connected inside the UASB reactor body, and a first guide disk is fixedly connected to the bottom of the third guide plate.

[0006] Preferably, the third guide plate is arranged between the first guide plate and the second guide plate, and through holes with the same shape are provided at the center positions of the first guide plate and the second guide plate, and four through holes are symmetrically arranged inside the third guide plate.

[0007] Preferably, through holes for passing through connecting pieces are provided around the bottom of the UASB reactor body, and the through holes are symmetrically distributed around the bottom of the UASB reactor body.

[0008] Preferably, a first conveying pipeline is fixedly connected inside the UASB reactor body. A second conveying pipeline is fixedly connected to the outside of the first conveying pipeline. A conveying water pump is fixedly connected to the right side of the second conveying pipeline. A third conveying pipeline is fixedly connected to the front of the conveying water pump. A water supply port is fixedly connected inside the first conveying pipeline. A support is fixedly connected to the top of the water supply port. A second guiding disc is fixedly connected to the top of the support. A positioning ring is fixedly connected inside the water supply port. A fixing plate is fixedly connected inside the water supply port. A spring is fixedly connected to the top of the fixing plate. One end of the spring away from the fixing plate is fixedly connected to a blocking plate.

[0009] Preferably, the positioning ring is circular, and an inclined groove is formed inside the positioning ring, and the blocking plate is in contact with the inclined groove.

[0010] Preferably, there are four first conveying pipelines, and the four first conveying pipelines are symmetrically and fixedly connected inside the second conveying pipeline, and five water supply ports are respectively fixedly connected inside each first conveying pipeline.

[0011] Preferably, the filtering mechanism includes a water storage tank. The water storage tank is fixedly connected to the outside of the UASB reactor body. An installation block is fixedly connected between the UASB reactor body and the three-phase separator. A first installation plate is fixedly connected to the outside of the installation block. A clamping plate is movably connected inside the installation block. A filter element is fixedly connected inside the clamping plate. A sealing ring is fixedly connected inside the clamping plate. A handle is fixedly connected to the top of the clamping plate. A second installation plate is fixedly connected to the outside of the clamping plate. Bolts are inserted into the interiors of the first installation plate and the second installation plate, and nuts are threadedly connected to the outside of the bolts.

[0012] Preferably, a matching card slot is formed at the corresponding position of the installation block for the clamping plate, and the clamping plate is clamped inside the card slot.

[0013] Preferably, the shape of the sealing ring corresponds to that of the installation block, and the sealing ring is in contact with the installation block.

[0014] Preferably, the first installation plate and the second installation plate are in corresponding positions, and through holes for passing the bolts are respectively formed in the interiors of the installation block and the second installation plate, and the bolts are arranged inside the through holes.

[0015] Advantages of the present invention:

[0016] 1. By guiding the sewage inside the anaerobic sludge bed through the second guiding plate, the first guiding disc, the third guiding plate and the first guiding plate, the sewage is dispersed more evenly, and the sewage is fully contacted with the anaerobic sludge bed, so as to carry out a full reaction, with more comprehensive contact, achieving an ideal reaction treatment effect.

[0017] 2. The treated sewage is further purified through the filter element, so that the sewage purification is more sufficient. Moreover, the filter element that is easy to disassemble is very convenient to replace, and the filter element can be quickly replaced to ensure its service performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic three-dimensional structure diagram of the present invention;

[0019] Figure 2 is a schematic cross-sectional structure diagram of the UASB reactor body of the present invention;

[0020] Figure 3 is a schematic cross-sectional structure diagram of the first guide plate of the present invention;

[0021] Figure 4 is a schematic structure diagram of the second conveying pipeline and its connected components of the present invention;

[0022] Figure 5 is a schematic cross-sectional structure diagram of the water inlet of the present invention;

[0023] Figure 6 is a schematic structure diagram of the filtering mechanism of the present invention;

[0024] Figure 7 is an exploded structure diagram of the filtering mechanism of the present invention.

[0025] DESCRIPTION OF THE REFERENCE NUMERALS: 1. UASB reactor body; 21. First guide plate; 22. Second guide plate; 23. Third guide plate; 24. First guide disk; 25. First conveying pipeline; 26. Second conveying pipeline; 27. Conveying water pump; 28. Third conveying pipeline; 29. Water inlet; 210. Bracket; 211. Second guide disk; 212. Positioning ring; 213. Fixed plate; 214. Spring; 215. Blocking plate; 31. Water storage tank; 32. Installation block; 33. First installation plate; 34. Clamping plate; 35. Filter element; 36. Sealing ring; 37. Handle; 38. Second installation plate; 39. Bolt; 310. Nut; 4. Three-phase separator. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present invention will be further described below with reference to the drawings and embodiments.

[0027] Please refer to Figures 1 - 7, the present invention provides an embodiment: a UASB reaction device for sewage treatment, including a UASB reactor body 1, and further including a first guide plate 21 and a filtering mechanism. A three-phase separator 4 is arranged inside the UASB reactor body 1. A filtering mechanism for secondary filtration of sewage is arranged between the UASB reactor body 1 and the three-phase separator 4. A first guide plate 21 is fixedly connected inside the UASB reactor body 1. A second guide plate 22 is fixedly connected inside the UASB reactor body 1. A third guide plate 23 is fixedly connected inside the UASB reactor body 1. A first guide disc 24 is fixedly connected to the bottom of the third guide plate 23. An anaerobic sludge bed is arranged inside the UASB reactor body 1. After sewage enters the inside of the UASB reactor body 1, it contacts the anaerobic sludge bed inside, and sequentially contacts the second guide plate 22, the first guide disc 24, the third guide plate 23, and the first guide plate 21 during the rising process, and then is separated by the three-phase separator 4, and the separated sewage is further purified by the filtering mechanism.

[0028] Please refer to Figures 1 - 5, in this embodiment, the third guide plate 23 is arranged between the first guide plate 21 and the second guide plate 22, and through holes are provided at the center positions of the first guide plate 21 and the second guide plate 22. Four through holes are symmetrically provided inside the third guide plate 23. The sewage can rise and pass through in sequence through the through holes, so as to guide it, making the rising sewage fully contact with the anaerobic sludge bed. Through holes for passing through the connecting pieces are provided around the bottom of the UASB reactor body 1, and the through holes are symmetrically distributed at the bottom of the UASB reactor body 1. The connecting pieces can pass through the through holes, so as to fix the UASB reactor body 1 and install the UASB reactor body 1 at a suitable position. A first conveying pipeline 25 is fixedly connected inside the UASB reactor body 1. A second conveying pipeline 26 is fixedly connected to the outside of the first conveying pipeline 25. A conveying water pump 27 is fixedly connected to the right side of the second conveying pipeline 26. A third conveying pipeline 28 is fixedly connected to the front of the conveying water pump 27. A water supply port 29 is fixedly connected inside the first conveying pipeline 25. A support 210 is fixedly connected to the top of the water supply port 29. A second guide disc 211 is fixedly connected to the top of the support 210. A positioning ring 212 is fixedly connected inside the water supply port 29. A fixing plate 213 is fixedly connected inside the water supply port 29. A spring 214 is fixedly connected to the top of the fixing plate 213. A blocking plate 215 is fixedly connected to one end of the spring 214 away from the fixing plate 213. The sewage is conveyed into the UASB reactor body 1 through the conveying water pump 27, and the second guide disc 211 can make the sewage more dispersed when entering. The positioning ring 212 is circular, and an inclined groove is provided inside the positioning ring 212, and the blocking plate 215 is in contact with the inclined groove. Through the contact between the blocking plate 215 and the inclined groove of the positioning ring 212, the effect of unidirectional flow of sewage inside the water supply port 29 is realized, preventing the sewage inside the UASB reactor body 1 from flowing back. There are four first conveying pipelines 25, and the four first conveying pipelines 25 are symmetrically and fixedly connected inside the second conveying pipeline 26. Five water supply ports 29 are respectively fixedly connected inside each first conveying pipeline 25, making the coverage range of the sewage entry larger, so that it can contact the anaerobic sludge bed more fully and the reaction is more sufficient.

[0029] Please refer to Figure 1 , Figures 6 - 7, in this embodiment, the filtering mechanism includes a water storage tank 31. The water storage tank 31 is fixedly connected to the outside of the UASB reactor body 1. An installation block 32 is fixedly connected between the UASB reactor body 1 and the three-phase separator 4. A first mounting plate 33 is fixedly connected to the outside of the installation block 32. A clamping plate 34 is movably connected to the inside of the installation block 32. A filter element 35 is fixedly connected to the inside of the clamping plate 34. A sealing ring 36 is fixedly connected to the inside of the clamping plate 34. A handle 37 is fixedly connected to the top of the clamping plate 34. A second mounting plate 38 is fixedly connected to the outside of the clamping plate 34. A bolt 39 is inserted into the inside of the second mounting plate 38 and the first mounting plate 33. A nut 310 is threadedly connected to the outside of the bolt 39. The treated sewage is secondary purified by the filter element 35, so that the sewage is purified more fully and comprehensively. The installation block 32 is provided with a matching slot at the corresponding position of the clamping plate 34, and the clamping plate 34 is clamped inside the slot. The slot facilitates the installation of the clamping plate 34. The clamping plate 34 can be taken out regularly to replace the filter element 35. The shape of the sealing ring 36 corresponds to that of the installation block 32, and the sealing ring 36 is in contact with the installation block 32. The sealing effect is improved through the sealing ring 36 to prevent sewage from leaking out. The positions of the first mounting plate 33 and the second mounting plate 38 correspond to each other, and through holes for passing the bolt 39 are respectively and correspondingly provided in the installation block 32 and the inside of the second mounting plate 38, and the bolt 39 is arranged inside the through holes. The second mounting plate 38 and the first mounting plate 33 are connected by the bolt 39, so that the clamping plate 34 is installed more stably, and the sealing performance and the installation stability of the clamping plate 34 are improved.

[0030] When working, sewage is pumped through the delivery water pump 27, and is conveyed through the third delivery pipeline 28, the second delivery pipeline 26, and the first delivery pipeline 25, and is conveyed into the inside of the UASB reactor body 1 through the water inlet 29. The sewage pushes open the blocking plate 215, and the blocking plate 215 stretches the spring 214. The spring 214 is used to reset the blocking plate 215 when no water is injected. Then the sewage contacts the second guide disk 211 and disperses into the inside of the UASB reactor body 1 to contact the anaerobic sludge bed. Guided by the second guide plate 22, the first guide disk 24, the third guide plate 23, and the first guide plate 21, and then separated by the three-phase separator 4, the sewage is secondary purified through the filter element 35, and then stored in the water storage tank 31. Unscrew the nut 310, take out the bolt 39, and then the clamping plate 34 can be taken out from the slot of the installation block 32 through the handle 37 to replace the filter element 35. The sealing performance can be improved through the sealing ring 36.

[0031] Through the above steps, the sewage is guided inside the anaerobic sludge bed by the second guide plate 22, the first guide disk 24, the third guide plate 23, and the first guide plate 21, so that the sewage is dispersed more evenly, to solve the problem that the relatively fixed water inlet position will cause some wastewater to flow out of the reactor without sufficient anaerobic treatment.

Claims

1. A UASB reaction device for sewage treatment, comprising a UASB reactor body (1), characterized in that: It also includes a first guide plate (21) and a filtering mechanism. A three-phase separator (4) is arranged inside the UASB reactor body (1). A filtering mechanism for secondary filtration of sewage is arranged between the UASB reactor body (1) and the three-phase separator (4). A first guide plate (21) is fixedly connected inside the UASB reactor body (1). A second guide plate (22) is fixedly connected inside the UASB reactor body (1). A third guide plate (23) is fixedly connected inside the UASB reactor body (1). A first guide disk (24) is fixedly connected to the bottom of the third guide plate (23).

2. The UASB reaction device for sewage treatment according to claim 1, characterized in that: The third guide plate (23) is arranged between the first guide plate (21) and the second guide plate (22). The same through slots are provided at the center positions of the first guide plate (21) and the second guide plate (22). Four through slots are symmetrically provided inside the third guide plate (23).

3. The UASB reaction device for sewage treatment according to claim 1, wherein: Through holes for passing through connecting parts are provided around the bottom of the UASB reactor body (1), and the through holes are symmetrically distributed at the bottom of the UASB reactor body (1).

4. The UASB reaction device for sewage treatment according to claim 1, characterized in that: A first conveying pipe (25) is fixedly connected inside the UASB reactor body (1). A second conveying pipe (26) is fixedly connected to the outside of the first conveying pipe (25). A conveying water pump (27) is fixedly connected to the right side of the second conveying pipe (26). A third conveying pipe (28) is fixedly connected to the front of the conveying water pump (27). A water supply port (29) is fixedly connected inside the first conveying pipe (25). A bracket (210) is fixedly connected to the top of the water supply port (29). A second guide disk (211) is fixedly connected to the top of the bracket (210). A positioning ring (212) is fixedly connected inside the water supply port (29). A fixing plate (213) is fixedly connected inside the water supply port (29). A spring (214) is fixedly connected to the top of the fixing plate (213). One end of the spring (214) far away from the fixing plate (213) is fixedly connected to a blocking plate (215).

5. The UASB reaction device for sewage treatment according to claim 4, wherein: The positioning ring (212) is circular, and an inclined slot is provided inside the positioning ring (212), and the blocking plate (215) is in contact with the inclined slot.

6. The UASB reaction device for sewage treatment according to claim 4, wherein: There are four first conveying pipes (25), and the four first conveying pipes (25) are symmetrically and fixedly connected inside the second conveying pipe (26), and five water supply ports (29) are respectively fixedly connected to the inside of each first conveying pipe (25).

7. The UASB reaction device for sewage treatment according to claim 1, characterized in that: The filtering mechanism includes a water storage tank (31), the water storage tank (31) is fixedly connected to the outside of the UASB reactor body (1), an installation block (32) is fixedly connected between the UASB reactor body (1) and the three-phase separator (4), a first mounting plate (33) is fixedly connected to the outside of the installation block (32), a clamping plate (34) is movably connected to the inside of the installation block (32), a filter element (35) is fixedly connected to the inside of the clamping plate (34), a sealing ring (36) is fixedly connected to the inside of the clamping plate (34), a handle (37) is fixedly connected to the top of the clamping plate (34), a second mounting plate (38) is fixedly connected to the outside of the clamping plate (34), a bolt (39) is inserted into the inside of the second mounting plate (38) and the first mounting plate (33), and a nut (310) is threadedly connected to the outside of the bolt (39).

8. The UASB reaction device for sewage treatment according to claim 7, characterized in that: The installation block (32) is provided with a matching slot at the corresponding position of the clamping plate (34), and the clamping plate (34) is clamped inside the slot.

9. The UASB reaction device for sewage treatment according to claim 7, wherein: The shape of the sealing ring (36) corresponds to that of the installation block (32), and the sealing ring (36) is in contact with the installation block (32).

10. The UASB reaction device for sewage treatment according to claim 7, characterized in that: The first mounting plate (33) and the second mounting plate (38) are in corresponding positions, and through holes for passing through the bolt (39) are respectively formed in the installation block (32) and the inside of the second mounting plate (38), and the bolt (39) is arranged inside the through holes.

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