Leachate anaerobic fermentation device of garbage incineration power plant

Abstract

The utility model relates to the technical field of leachate treatment devices, in particular to a leachate anaerobic fermentation device of a garbage incineration power plant, which comprises an anaerobic fermentation tank, an anaerobic sludge bed, a support plate, a three-phase separator and an overflow device are arranged in the anaerobic fermentation tank, the support plate is arranged above the anaerobic sludge bed, and the three-phase separator is arranged above the three-phase separator. The three-phase separator is arranged above the supporting plate, the overflow device is arranged above the three-phase separator, the top end of the anaerobic fermentation tank is fixedly connected with a gas collecting tank, two gas guide pipes are arranged on the gas collecting tank, a gas outlet pipe is arranged at the top end of the gas collecting tank, two fixing grooves are formed in the top end of the gas outlet pipe, and supporting strips are inserted into the fixing grooves; connecting plates with L-shaped sections are fixedly connected to the supporting strips, mounting rings are fixedly connected to the bottom ends of the two connecting plates, and filter screens are mounted on the mounting rings; dust in the air can be filtered, the dust is prevented from being accumulated on the pipe wall, meanwhile, the filter screen is convenient to replace and periodically replace and clean, and the exhaust effect of the gas collection tank is better.

Description

Technical Field

[0001] The utility model relates to a fermentation device, in particular to an anaerobic fermentation device for leachate of a garbage incineration power plant, belonging to the technical field of leachate treatment devices. Background Art

[0002] During the landfill process, various external factors such as squeezing produce a type of wastewater with high concentrations of organic or inorganic matter, called leachate. Its water quality varies greatly, with many types of organic pollutants and high concentrations, and there are a variety of carcinogens, carcinogens, co-carcinogens, sudden carcinogens and metal ions. When leachate seeps into groundwater and surface water, it pollutes the surface water quality, and the groundwater loses its use value, which has a direct impact on human health and industrial and agricultural water sources. Therefore, anaerobic fermentation equipment is needed to treat the leachate.

[0003] The gas collecting tank of the traditional leachate fermentation device collects and discharges the purified gas from the outlet pipe at the top. The outlet pipe is directly exposed to the outside. When there is a lot of dust, it is easy to accumulate on the wall of the outlet pipe, resulting in difficulty in subsequent gas discharge and affecting the exhaust effect of the gas collecting tank. Utility Model Content

[0004] The purpose of the utility model is to provide an anaerobic fermentation device for leachate of a waste incineration power plant in order to solve the above-mentioned problem, which can filter dust in the air and prevent dust from accumulating on the pipe wall. At the same time, it is easy to replace the filter screen. The filter screen can be replaced and cleaned regularly to make the exhaust effect of the gas collecting tank better.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: an anaerobic fermentation device for leachate of a waste incineration power plant, comprising an anaerobic fermentation tank, a water distribution structure is arranged at the bottom end of the anaerobic fermentation tank, a treatment structure is arranged inside the anaerobic fermentation tank, and the treatment structure comprises an anaerobic sludge bed, an anaerobic sludge bed, a support plate, a three-phase separator and an overflow device are arranged inside the anaerobic fermentation tank, the support plate is arranged above the anaerobic sludge bed, the three-phase separator is arranged above the support plate, the overflow device is arranged above the three-phase separator, and a water outlet pipe is installed at the bottom end of the overflow device, and the water outlet pipe runs through the side wall of the anaerobic fermentation tank. The top of the anaerobic fermentation tank is fixedly connected to an air collecting tank, and two air guide pipes are provided on the air collecting tank. The bottom ends of the air guide pipes are arranged inside the anaerobic fermentation tank. An air outlet pipe is provided at the top of the air collecting tank, and a filtering structure is provided at the top of the air outlet pipe. The filtering structure includes a fixed groove, and two fixed grooves are provided at the top of the air outlet pipe. A support bar is inserted into the interior of the fixed groove, and an umbrella block is fixedly connected to the top of the two support bars. A connecting plate with an L-shaped cross-section is fixedly connected to the support bar, and a mounting ring is fixedly connected to the bottom ends of the two connecting plates. The mounting ring is arranged inside the air outlet pipe, and a filter net is installed on the mounting ring.

[0006] Preferably, two limit blocks are rotatably connected to the air outlet pipe, the two limit blocks are fixedly connected via a connecting block, and a limit groove is provided on the support bar, and the limit block is engaged with the limit groove.

[0007] Preferably, a handle is fixedly connected to the limit block, and the handle is perpendicular to the limit block.

[0008] Preferably, the water distribution structure includes a plurality of water distribution branches, the bottom circumferential array of the anaerobic fermentation tank is fixedly connected with a plurality of water distribution branches, the plurality of water distribution branches are connected to the same water distribution main pipe, and the water distribution main pipe is provided with a water inlet pipe.

[0009] Preferably, a guide seat is provided inside the anaerobic fermentation tank, the cross section of the guide seat is a trapezoidal structure, and a sludge discharge device is provided inside the anaerobic fermentation tank.

[0010] Preferably, an inspection port is provided at the top of the anaerobic fermentation tank, a protective structure is provided outside the inspection port, the protective structure includes a mounting seat, the mounting seat is sleeved on the outside of the inspection port, the bottom end of the mounting seat is fixedly connected to the anaerobic fermentation tank, the mounting seat is provided with three slots, plug blocks are inserted inside the slots, the three plug blocks are fixedly connected to the same protective cover, and the protective cover is in conflict with the mounting seat.

[0011] Preferably, a limit strip is fixedly connected to the mounting seat, a pressing block is slidably connected to one of the plug blocks, a connecting strip is fixedly connected to the pressing block, the connecting strip is slidably connected to the plug block, an anti-drop block is fixedly connected to the connecting strip, the anti-drop block is slidably connected to the plug block, the anti-drop block is engaged with the limit strip, and a spring is fixedly connected between the connecting strip and the plug block.

[0012] Preferably, a guide shaft passes through the interior of the spring, the guide shaft is fixedly connected to the interior of the insert block, and the connecting strip is slidably connected to the guide shaft.

[0013] Preferably, a spiral staircase is provided on the outside of the anaerobic fermentation tank, and a guardrail is provided on the top of the anaerobic fermentation tank.

[0014] The beneficial effects of the utility model are as follows: an anaerobic sludge bed, a support plate, a three-phase separator and an overflow device are arranged inside the anaerobic fermentation tank, the support plate is arranged above the anaerobic sludge bed, the three-phase separator is arranged above the support plate, the overflow device is arranged above the three-phase separator, the top of the anaerobic fermentation tank is fixedly connected with a gas collecting tank, two air guide pipes are arranged on the gas collecting tank, an air outlet pipe is arranged on the top of the gas collecting tank, two fixed grooves are arranged on the top of the air outlet pipe, a support bar is inserted inside the fixed groove, a connecting plate with an L-shaped cross section is fixedly connected to the supporting bar, a mounting ring is fixedly connected to the bottom ends of the two connecting plates, and a filter screen is installed on the mounting ring; the dust in the air can be filtered to prevent dust from accumulating on the pipe wall, and the filter screen is convenient to replace at the same time. The filter screen is regularly replaced and cleaned to make the exhaust effect of the gas collecting tank better. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the enlarged structure of part A shown;

[0017] Figure 3 for Figure 2 The enlarged structural diagram of part B is shown;

[0018] Figure 4 It is a schematic diagram of the connection structure between the anaerobic fermentation tank and the treatment structure of the utility model;

[0019] Figure 5 for Figure 4 The enlarged structural diagram of the C part is shown;

[0020] Figure 6 for Figure 5 The enlarged structural diagram of the D part shown;

[0021] Figure 7It is a schematic diagram of the connection structure between the anaerobic fermentation tank and the inspection port of the utility model;

[0022] Figure 8 for Figure 7 The enlarged structural diagram of the E part shown;

[0023] Fig. 9 It is a schematic diagram of the connection structure between the anaerobic fermentation tank and the water distribution branch pipe of the utility model.

[0024] In the figure: 1. anaerobic fermentation tank; 2. water distribution structure; 201. water distribution branch pipe; 202. water distribution main pipe; 203. water inlet pipe; 204. guide seat; 205. sludge discharge device; 3. treatment structure; 301. anaerobic sludge bed; 302. support plate; 303. three-phase separator; 304. overflow device; 305. inspection port; 306. water outlet pipe; 307. gas collecting tank; 308. air guide pipe; 309. air outlet pipe; 4. protection structure; 401. mounting seat; 40 2. Slot; 403. Insert block; 404. Protective cover; 405. Press block; 406. Connecting strip; 407. Anti-drop block; 408. Limiting strip; 409. Guide shaft; 410. Spring; 5. Filter structure; 501. Fixed slot; 502. Support strip; 503. Umbrella block; 504. Limiting block; 505. Connecting block; 506. Limiting slot; 507. Handle; 508. Connecting plate; 509. Mounting ring; 510. Filter; 6. Spiral staircase; 7. Guardrail. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-9As shown, an anaerobic fermentation device for leachate of a waste incineration power plant comprises an anaerobic fermentation tank 1, a water distribution structure 2 is provided at the bottom end of the anaerobic fermentation tank 1, a treatment structure 3 is provided inside the anaerobic fermentation tank 1, and the treatment structure 3 comprises an anaerobic sludge bed 301, an anaerobic sludge bed 301, a support plate 302, a three-phase separator 303 and an overflow device 304 are provided inside the anaerobic fermentation tank 1, the support plate 302 is arranged above the anaerobic sludge bed 301, the three-phase separator 303 is arranged above the support plate 302, the overflow device 304 is arranged above the three-phase separator 303, a water outlet pipe 306 is installed at the bottom end of the overflow device 304, the water outlet pipe 306 runs through the side wall of the anaerobic fermentation tank 1, and a gas collecting tank 307 is fixedly connected to the top of the anaerobic fermentation tank 1, and two air guide pipes 308 are provided on the air collecting tank 307, and the air guide pipe 30 The bottom end of 8 is arranged inside the anaerobic fermentation tank 1, and the top of the gas collecting tank 307 is provided with an air outlet pipe 309, and the top of the air outlet pipe 309 is provided with a filtering structure 5, and the filtering structure 5 includes a fixing groove 501, and the top of the air outlet pipe 309 is provided with two fixing grooves 501, and the interior of the fixing groove 501 is plugged with a support bar 502, and the tops of the two support bars 502 are fixedly connected with an umbrella block 503, and the support bar 502 is fixedly connected with a connecting plate 508 with an L-shaped cross-section, and the bottom ends of the two connecting plates 508 are fixedly connected with a mounting ring 509, and the mounting ring 509 is arranged inside the air outlet pipe 309, and a filter screen 510 is installed on the mounting ring 509; it can filter dust in the air to prevent dust from accumulating on the pipe wall, and it is convenient to replace the filter screen 510. Regularly replacing and cleaning the filter screen 510 can make the exhaust effect of the gas collecting tank 307 better.

[0027] As a technical optimization solution of the utility model, two limit blocks 504 are rotatably connected to the air outlet pipe 309, and the two limit blocks 504 are fixedly connected by a connecting block 505. A limit groove 506 is provided on the support bar 502, and the limit block 504 is engaged with the limit groove 506; a handle 507 is fixedly connected to the limit block 504, and the handle 507 is perpendicular to the direction of the limit block 504. The support bar 502 is limited by the limit block 504, and the filter screen 510 is fixed.

[0028] As a technical optimization scheme of the utility model, the water distribution structure 2 includes a plurality of water distribution branches 201, and a plurality of water distribution branches 201 are fixedly connected to a circular array at the bottom end of the anaerobic fermentation tank 1, and the plurality of water distribution branches 201 are connected to the same water distribution main pipe 202, and a water inlet pipe 203 is provided on the water distribution main pipe 202; a guide seat 204 is provided inside the anaerobic fermentation tank 1, and the cross-section of the guide seat 204 is a trapezoidal structure, and a sludge discharge device 205 is provided inside the anaerobic fermentation tank 1; sewage is introduced into the interior of the anaerobic fermentation tank 1 through the water distribution structure 2.

[0029] As a technical optimization scheme of the utility model, an inspection port 305 is provided at the top of the anaerobic fermentation tank 1, and a protective structure 4 is provided outside the inspection port 305. The protective structure 4 includes a mounting seat 401, and the mounting seat 401 is sleeved on the outside of the inspection port 305. The bottom end of the mounting seat 401 is fixedly connected to the anaerobic fermentation tank 1. Three slots 402 are provided on the mounting seat 401, and plug blocks 403 are inserted inside the slots 402. The three plug blocks 403 are fixedly connected to the same protective cover 404, and the protective cover 404 conflicts with the mounting seat 401; a limiting strip 408 is fixedly connected to the mounting seat 401, and one of the plug blocks 403 is slidably connected to A pressing block 405 is fixedly connected to a connecting strip 406, which is slidably connected to the plug block 403, and an anti-slip block 407 is fixedly connected to the connecting strip 406, which is slidably connected to the plug block 403. The anti-slip block 407 is engaged with a limiting strip 408, and a spring 410 is fixedly connected between the connecting strip 406 and the plug block 403; a guide shaft 409 passes through the interior of the spring 410, and the guide shaft 409 is fixedly connected to the interior of the plug block 403, and the connecting strip 406 is slidably connected to the guide shaft 409; the inspection port 305 is protected by the protective structure 4, so that the inspection port 305 is prevented from being exposed to the outdoors for a long time and causing damage to the fixing bolts.

[0030] As a technical optimization solution of the utility model, a spiral staircase 6 is provided on the outside of the anaerobic fermentation tank 1, and a guardrail 7 is provided on the top of the anaerobic fermentation tank 1. The top of the anaerobic fermentation tank 1 can be climbed via the spiral staircase 6 for convenient maintenance, and the guardrail 7 is used for protection to improve safety.

[0031] When the utility model is in use, the leachate of the waste incineration power plant enters the water distribution main pipe 202 from the water inlet pipe 203, then enters each water distribution branch pipe 201 from the water distribution main pipe 202, and enters the interior of the anaerobic fermentation tank 1 from the water distribution branch pipe 201. A plurality of water distribution branch pipes 201 are provided, which improves the sewage treatment efficiency and avoids sewage accumulation. The sewage is evenly distributed to the bottom of the anaerobic sludge bed 301, and the sewage is continuously mixed and contacted with the sludge in the sludge layer. The microorganisms in the anaerobic sludge bed 301 continuously decompose the organic matter in the sewage and convert the organic matter into gas, and the gas continuously rises in the form of tiny bubbles. , and finally collected by the air guide pipe 308 and enters the interior of the air collecting tank 307, and finally discharged through the outlet pipe 309. After the solid-liquid mixture passes through the support plate 302, it is separated at the three-phase separator 303. The sludge in the sewage continues to flocculate, and the particles gradually increase, and finally settle under the action of gravity. The precipitated sludge flows back to the anaerobic sludge bed 301, and the water separated from the sludge enters the overflow device 304, and finally discharged through the outlet pipe 306. The outlet pipe 309 is protected by the filter screen 510 to prevent dust from entering the outlet pipe 309, thereby improving the exhaust effect of the outlet pipe 309. When the filter screen 510 needs to be replaced, 0, the handle 507 can be turned, the handle 507 is turned to drive the limit block 504 to rotate, the limit block 504 drives the connecting block 505 to rotate, and then drives another limit block 504 to rotate, the limit block 504 no longer engages the limit groove 506 on the support bar 502, and then the support bar 502 can be pulled out from the fixing groove 501, and then the connecting plate 508 and the mounting ring 509 on the support bar 502 are taken out from the air outlet pipe 309, and then the filter screen 510 is replaced. When the anaerobic fermentation tank 1 needs to be repaired, the staff needs to climb to the top of the anaerobic fermentation tank 1 from the spiral staircase 6. The end, the setting of the guardrail 7 improves the operational safety, and then the pressing block 405 on the plug block 403 is pressed, the pressing block 405 drives the connecting strip 406 to slide, the spring 410 is compressed, and the setting of the guide shaft 409 improves the sliding stability of the connecting strip 406, and at the same time avoids the deviation of the spring 410, the connecting strip 406 slides and then drives the anti-slip block 407 to slide, the anti-slip block 407 no longer engages with the limit strip 408, and then the plug block 403 is pulled out from the slot 402 of the mounting seat 401, and then the protective cover 404 is removed to expose the internal inspection port 305, and then the anaerobic fermentation tank 1 is inspected and maintained.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An anaerobic fermentation device for leachate of a waste incineration power plant, comprising an anaerobic fermentation tank (1), characterized in that: The bottom end of the anaerobic fermentation tank (1) is provided with a water distribution structure (2), and the interior of the anaerobic fermentation tank (1) is provided with a treatment structure (3), and the treatment structure (3) comprises an anaerobic sludge bed (301). The interior of the anaerobic fermentation tank (1) is provided with an anaerobic sludge bed (301), a support plate (302), a three-phase separator (303) and an overflow device (304), wherein the support plate (302) is arranged above the anaerobic sludge bed (301), the three-phase separator (303) is arranged above the support plate (302), and the overflow device (304) is arranged above the three-phase separator (303). The bottom end of the overflow device (304) is provided with a water outlet pipe (306), and the water outlet pipe (306) penetrates the side wall of the anaerobic fermentation tank (1). The top end of the anaerobic fermentation tank (1) is fixedly connected with a gas collecting tank (307), and the gas collecting tank (307) is provided with a There are two air guide pipes (308), the bottom ends of the air guide pipes (308) are arranged inside the anaerobic fermentation tank (1), the top end of the gas collecting tank (307) is provided with an air outlet pipe (309), the top end of the air outlet pipe (309) is provided with a filtering structure (5), the filtering structure (5) comprises a fixing groove (501), the top end of the air outlet pipe (309) is provided with two fixing grooves (501), the inside of the fixing grooves (501) is plugged with a supporting bar (502), the top ends of the two supporting bars (502) are fixedly connected with an umbrella block (503), the support bar (502) is fixedly connected with a connecting plate (508) with an L-shaped cross section, the bottom ends of the two connecting plates (508) are fixedly connected with a mounting ring (509), the mounting ring (509) is arranged inside the air outlet pipe (309), and a filtering net (510) is installed on the mounting ring (509).

2. The anaerobic fermentation device for leachate of a waste incineration power plant according to claim 1, characterized in that: Two limit blocks (504) are rotatably connected to the air outlet pipe (309); the two limit blocks (504) are fixedly connected via a connecting block (505); a limit groove (506) is provided on the support bar (502); and the limit block (504) is engaged with the limit groove (506).

3. The anaerobic fermentation device for leachate of a waste incineration power plant according to claim 2, characterized in that: A handle (507) is fixedly connected to the limit block (504), and the handle (507) is perpendicular to the limit block (504).

4. The anaerobic fermentation device for leachate of a waste incineration power plant according to claim 1, characterized in that: The water distribution structure (2) comprises a plurality of water distribution branch pipes (201), the bottom end of the anaerobic fermentation tank (1) is fixedly connected to the plurality of water distribution branch pipes (201) in a circular array, the plurality of water distribution branch pipes (201) are connected to the same water distribution main pipe (202), and the water distribution main pipe (202) is provided with a water inlet pipe (203).

5. The anaerobic fermentation device for leachate of a waste incineration power plant according to claim 4, characterized in that: A guide seat (204) is provided inside the anaerobic fermentation tank (1), and the cross-section of the guide seat (204) is a trapezoidal structure. A sludge discharge device (205) is provided inside the anaerobic fermentation tank (1).

6. The anaerobic fermentation device for leachate of a waste incineration power plant according to claim 1, characterized in that: The top of the anaerobic fermentation tank (1) is provided with an inspection port (305), the outside of the inspection port (305) is provided with a protective structure (4), the protective structure (4) comprises a mounting seat (401), the mounting seat (401) is sleeved on the outside of the inspection port (305), the bottom end of the mounting seat (401) is fixedly connected to the anaerobic fermentation tank (1), the mounting seat (401) is provided with three slots (402), the inside of the slots (402) is plugged with plug blocks (403), the three plug blocks (403) are fixedly connected with the same protective cover (404), and the protective cover (404) is in conflict with the mounting seat (401).

7. The anaerobic fermentation device for leachate of a waste incineration power plant according to claim 6, characterized in that: A limiting strip (408) is fixedly connected to the mounting seat (401); a pressing block (405) is slidably connected to one of the plug blocks (403); a connecting strip (406) is fixedly connected to the pressing block (405); the connecting strip (406) is slidably connected to the plug block (403); an anti-slip block (407) is fixedly connected to the connecting strip (406); the anti-slip block (407) is slidably connected to the plug block (403); the anti-slip block (407) is engaged with the limiting strip (408); and a spring (410) is fixedly connected between the connecting strip (406) and the plug block (403).

8. The anaerobic fermentation device for leachate of a waste incineration power plant according to claim 7, characterized in that: A guide shaft (409) passes through the interior of the spring (410), the guide shaft (409) is fixedly connected to the interior of the insert block (403), and the connecting strip (406) is slidably connected to the guide shaft (409).

9. The anaerobic fermentation device for leachate of a waste incineration power plant according to claim 1, characterized in that: A spiral staircase (6) is provided on the outside of the anaerobic fermentation tank (1), and a guardrail (7) is provided on the top of the anaerobic fermentation tank (1).

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