An internal circulation gas lift loop anaerobic reactor

Abstract

The present invention relates to an internal circulation gas lift loop anaerobic reactor, comprising a sludge treatment mechanism arranged at the bottom of a three-phase separator, the sludge treatment mechanism comprising a gathering component arranged at the bottom of the three-phase separator, a compacting component arranged on the gathering component, a kneading component arranged on the gathering component, and a puncturing component arranged on the gathering component. The sludge treatment mechanism compacts, rounds, and punctures expanded sludge particles, and discharges them for reuse, thereby reducing the amount of sludge particles washed out. The present invention utilizes the effect of water flow to reduce the volume of expanded sludge particles, making the sludge particles more compact, preventing the sludge particles from being washed out due to excessive buoyancy, facilitating the recycling of sludge particles, improving the sewage treatment effect, and being able to knead the sludge particles to discharge the gas inside the particles, thereby improving the integrity of the particles, thereby solving the technical problem that large and hollow sludge particles are easily washed out due to increased buoyancy, thereby affecting the sewage treatment effect.

Description

Technical Field

[0001] The invention relates to the technical field of anaerobic reactors, in particular to an internal circulation gas lift loop anaerobic reactor. Background Art

[0002] High-concentration organic wastewater, due to its high COD concentration and severe pollution, has attracted close attention from all walks of life. Anaerobic biological treatment technology has played a significant role in the treatment of high-concentration organic wastewater, and has undergone three generations of anaerobic biological treatment technology. The first generation of anaerobic contact reactors was formed by adding sludge return devices to sedimentation tanks to increase the sludge concentration in the anaerobic reactor. The second generation of anaerobic reactors separated the solid retention time from the hydraulic retention time, allowing the solid retention time to reach hundreds of days, shortening the residence time of high-concentration wastewater in the anaerobic reactor and significantly improving the wastewater treatment efficiency. The UASB reactor is a typical example of this generation of reactors. Although the UASB reactor uses granular sludge to achieve the separation of hydraulic retention time (HRT) and sludge retention time (SRT), extending the sludge age and maintaining a high sludge concentration, it has shortcomings in terms of good contact between sludge and water and mass transfer processes, which affect the efficiency of the removal effect. The third generation of reactors has achieved efficient treatment results by improving these deficiencies.

[0003] Patent document CN201410356812X discloses a multi-power internal circulation flow anaerobic reactor, including an internal circulation system consisting of a first reaction zone and a second reaction zone, as well as a water distribution system and a downcomer running through the entire internal circulation system of the first reaction zone and the second reaction zone. A connecting device is used to connect the water inlet pipe of the water distribution system and the downcomer of the internal circulation system, and the power in the raw water is used to enhance the reflux of the mud-water mixture in the downcomer to ensure the normal operation of the internal circulation system.

[0004] However, during actual use, the inventors found that the sludge particles in the traditional internal circulation anaerobic reactor expanded in volume or produced gas in the body after biochemical reaction, forming large and hollow particles, which caused the buoyancy of the sludge particles to increase and be easily washed out, affecting the sewage treatment effect. Summary of the Invention

[0005] The purpose of the present invention is to address the shortcomings of the existing technology. By cooperating with the sludge treatment mechanism and the mud and water downcomer, the volume of the expanded sludge particles is reduced by the action of the water flow, making the sludge particles more compact, preventing the sludge particles from being washed out due to excessive buoyancy, thereby reducing the amount of sludge particles washed out, facilitating the recycling of sludge particles, improving the sewage treatment effect, and being able to knead the sludge particles to discharge the gas inside the particles, thereby improving the integrity of the particles and preventing the particles from becoming loose, thereby solving the technical problem that large and hollow sludge particles become easily washed out due to increased buoyancy, affecting the sewage treatment effect.

[0006] In response to the above technical problems, the technical solutions adopted are as follows:

[0007] An internal circulation airlift loop anaerobic reactor, comprising a three-phase separator arranged inside an anaerobic tower, a mud-water downcomer rotatably arranged inside the anaerobic tower and passing through the middle of the three-phase separator, and a sludge treatment mechanism arranged at the bottom of the three-phase separator;

[0008] The sludge treatment mechanism includes a gathering component arranged at the bottom of the three-phase separator and used to gather floating sludge particles, a gathering component arranged on the gathering component and used to suck in the sludge particles and reduce their volume, a kneading component arranged on the gathering component and used to roll the dense sludge particles into balls, and a puncture component arranged on the gathering component and used to puncture the surface of the rolled-up sludge particles. The sludge treatment mechanism gathers, rolls, and punctures the expanded sludge particles, and discharges them for reuse, thereby reducing the amount of sludge particles washed out.

[0009] Preferably, the folding assembly includes a hanging column arranged at the bottom of the three-phase separator through two sets of hanging plates and sleeved on the mud and water downpipe, a folding cover arranged at the bottom of the hanging column, a stirring rod arranged at the lower end of the mud and water downpipe, a first gear arranged on the mud and water downpipe, a driving motor arranged on the three-phase separator, and a second gear arranged on the output shaft of the driving motor and used to drive the first gear.

[0010] Preferably, the polymerizing component includes two groups of absorption chambers symmetrically opened inside the suspension column, suction holes opened at the bottom of the suspension column and whose upper ends are connected to the absorption chambers, arc plates slidably arranged inside the absorption chambers, several groups of water nozzles opened on the arc plates, water storage air bags arranged between the arc plates and the inner walls of the absorption chambers and connected to the water nozzles through hoses, and a transmission rod arranged on the arc plates and one end of which passes through the outside of the suspension column.

[0011] Preferably, the kneading component includes a kneading channel arranged inside the suspension column, a gathering channel arranged at the lower end of the kneading channel and connected to the absorption chamber, a static kneading plate arranged on the inner wall of the kneading channel, a dynamic kneading plate arranged on the inner wall of the kneading channel and coordinated with the static kneading plate for lifting, a connecting rod arranged on the outer wall of the dynamic kneading plate and one end of which passes through the outside of the suspension column, and a strip hole opened on the suspension column for the connecting rod to be raised and lowered.

[0012] Preferably, the puncture assembly includes a puncture channel arranged at the upper end of the rubbing channel and extending to the top of the suspension column, a sliding cavity opened inside the suspension column, a vertical plate slidably arranged inside the sliding cavity, several groups of needles arranged on the vertical plate, needle holes opened on the outer wall of the puncture channel for the needles to pass through, a transmission rack arranged on the vertical plate and one end of which passes through the outside of the suspension column, and an elastic member arranged between the end of the transmission rack and the outer wall of the suspension column.

[0013] Preferably, the sludge treatment mechanism further includes a power component arranged on the hanging plate and used to drive the aggregation component, kneading component and puncture component to work synchronously, and a water blocking component arranged inside the hanging column and used to control the direction of water flow.

[0014] Preferably, the power assembly includes two groups of L-shaped hangers that are respectively passed through and slidably arranged on the hanger plate and whose lower ends are connected to the transmission rod, a wave plate arranged on the L-shaped hanger and used to drive the connecting rod to move the kneading plate up and down, a limiting groove provided on the wave plate, a top rod provided on the connecting rod and whose lower end is slidably matched with the limiting groove, a ratchet provided on the outer wall of the hanger column through a bracket and used to drive the transmission rack, an active rack provided on the L-shaped hanger and used to drive the ratchet, a power disk provided on the outer wall of the mud and water downpipe and used to drive the L-shaped hanger to move, and an annular slide groove provided on the outer wall of the power disk and slidably matched with the end of the L-shaped hanger.

[0015] Preferably, the water blocking assembly includes a suction blocking plate slidably arranged inside the suspension column and used to block the suction hole, a kneading blocking plate slidably arranged inside the suspension column and used to block the gathering channel, a puncture blocking plate slidably arranged inside the suspension column and located between the kneading channel and the puncture channel, a linkage rod arranged between the puncture blocking plate and the kneading blocking plate, a stepping motor arranged on the outer wall of the suspension column, an I-type turntable arranged on the output shaft of the stepping motor, two groups of linear slides opened on the I-type turntable, a first extension rod arranged on the linkage rod and one end of which is slidably matched with a linear slide, and a second extension rod arranged on the suction blocking plate and one end of which is slidably matched with another linear slide.

[0016] Preferably, a gas-liquid separator is provided on the top of the anaerobic tower, the upper end of the mud and water downcomer is connected to the gas-liquid separator, the three-phase separator is divided into two groups and arranged at intervals inside the anaerobic tower, and both groups of the three-phase separators are provided with risers, which extend into the gas-liquid separator.

[0017] Preferably, a water distributor is provided at the bottom of the anaerobic tower, which includes a water inlet pipe arranged on the outer wall of the anaerobic tower and a water distribution pipe arranged on the water inlet pipe and located at the bottom of the anaerobic tower. A diffusion cover is provided at the lower end of the muddy water downcomer, and the diffusion cover is located above the water distribution pipe.

[0018] Beneficial effects of the present invention:

[0019] (1) The present invention cooperates with the sludge treatment mechanism and the mud-water downcomer. On the one hand, the volume of the expanded sludge particles is reduced by the action of the water flow, making the sludge particles more compact and preventing the sludge particles from being washed out due to excessive buoyancy, thereby reducing the amount of sludge particles washed out, facilitating the recycling of sludge particles, and improving the sewage treatment effect; on the other hand, the sludge particles can be kneaded to discharge the gas inside the particles, thereby improving the integrity of the particles, preventing the particles from becoming loose, further reducing the buoyancy of the sludge particles, and puncturing the surface of the sludge particles to facilitate the distribution of bacteria inside the sludge particles, thereby improving the decomposition efficiency;

[0020] (2) The present invention cooperates with the gathering component and the mud-water downcomer. On the one hand, the sewage at the bottom of the anaerobic tower can be stirred, so that the sewage and sludge particles are fully in contact, thereby improving the efficiency of the biochemical reaction and accelerating the sewage treatment speed. On the other hand, the floating sludge particles gather toward the central axis of the anaerobic tower due to the centrifugal effect and rise into the gathering cover, which facilitates the collection of expanded sludge particles for treatment and prevents the expanded sludge particles from dispersing and being washed out as the biogas rises.

[0021] (3) The power component and the water blocking component provided in the present invention cooperate with each other. On the one hand, they can drive the compacting component, the kneading component and the puncture component to work synchronously, thereby ensuring the continuity of the sludge particle treatment work and improving the sludge particle treatment efficiency. On the other hand, they can control the direction of water flow and ensure that the sludge particles rise to the compacting component, the kneading component and the puncture component in turn along with the water flow, thereby ensuring the smoothness of the sludge particle treatment work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a structural schematic diagram of an internal circulation gas lift loop anaerobic reactor.

[0024] Figure 2 Schematic diagram of the internal structure of the anaerobic tower.

[0025] Figure 3 for Figure 2 The structural front view.

[0026] Figure 4 Schematic diagram of the structure of the sludge treatment mechanism.

[0027] Figure 5 for Figure 4 Schematic diagram of the structure from an upward perspective.

[0028] Figure 6 Schematic diagram of the internal structure of the suspender.

[0029] Figure 7 It is a structural diagram of the polymer component.

[0030] Figure 8 Schematic diagram of the transmission working for the solid component.

[0031] Figure 9 Schematic diagram of the structure of the kneading component.

[0032] Figure 10 It is a structural diagram of a dynamic rubbing board.

[0033] Figure 11 Schematic diagram of the structure of the puncture component.

[0034] Figure 12 This is a schematic diagram of the structure of the power component.

[0035] Figure 13 Schematic diagram of the structure of the water blocking component.

[0036] Figure 14 This is a structural diagram of the industrial type turntable. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings.

[0038] Example 1

[0039] like Figure 1-14 As shown, an internal circulation gaslift loop anaerobic reactor includes a three-phase separator 11 arranged inside an anaerobic tower 1 and a mud-water downcomer 12 rotatably arranged inside the anaerobic tower 1 and passing through the middle of the three-phase separator 11, and also includes a sludge treatment mechanism 2 arranged at the bottom of the three-phase separator 11;

[0040] The sludge treatment mechanism 2 includes a gathering component 21 arranged at the bottom of the three-phase separator 11 and used to gather floating sludge particles, a gathering component 22 arranged on the gathering component 21 and used to suck in the sludge particles and reduce their volume, a kneading component 23 arranged on the gathering component 21 and used to roll the dense sludge particles into balls, and a puncturing component 24 arranged on the gathering component 21 and used to puncture the surface of the rolled sludge particles. The sludge treatment mechanism 2 gathers, rolls, and punctures the expanded sludge particles, and discharges them for reuse, thereby reducing the amount of sludge particles washed out.

[0041] In this embodiment, by cooperating with the sludge treatment mechanism 2 and the mud and water downcomer 12, on the one hand, the volume of the expanded sludge particles is reduced by the action of the water flow, making the sludge particles denser, preventing the sludge particles from being washed out due to excessive buoyancy, thereby reducing the amount of sludge particles washed out, facilitating the recycling of sludge particles, and improving the sewage treatment effect; on the other hand, the sludge particles can be kneaded to discharge the gas inside the particles, thereby improving the integrity of the particles, preventing the particles from loosening, further reducing the buoyancy of the sludge particles, and puncturing the surface of the sludge particles to facilitate the distribution of bacteria inside the sludge particles, thereby improving the decomposition efficiency.

[0042] In detail, the driving motor 216 of the gathering component 21 drives the mud and water downpipe 12 to rotate through the second gear 217 and the first gear 215. The mud and water downpipe 12 carries the stirring rod 214 to stir the sewage inside the anaerobic tower 1. Due to the centrifugal effect, the floating sludge particles rise and gather in the gathering cover 213. The gathering component 22 sucks the expanded sludge particles in the gathering cover 213 and reduces the volume of the sludge particles through the rotating water flow and the guidance of the arc plate 223. Then, the sludge particles enter the kneading channel 231. The dynamic kneading plate 234 of the kneading component 23 cooperates with the dynamic kneading plate 234 to knead the sludge particles into balls and discharge the gas inside the sludge particles. Then, the sludge particles enter the puncture channel 241, and the needle 244 punctures the sludge particles. Finally, the sludge particles are discharged from the puncture channel 241. The discharged sludge particles fall to the bottom of the anaerobic tower 1 due to their own weight for recycling.

[0043] Further, if Figure 3-9 As shown, the folding assembly 21 includes a hanging column 212 arranged at the bottom of the three-phase separator 11 through two groups of hanging plates 211 and sleeved on the mud and water downpipe 12, a folding cover 213 arranged at the bottom of the hanging column 212, a stirring rod 214 arranged at the lower end of the mud and water downpipe 12, a first gear 215 arranged on the mud and water downpipe 12, a driving motor 216 arranged on the three-phase separator 11, and a second gear 217 arranged on the output shaft of the driving motor 216 and used to drive the first gear 215.

[0044] In this embodiment, the collection component 21 and the mud and water downcomer 12 are arranged to cooperate, on the one hand, the sewage at the bottom of the anaerobic tower 1 can be stirred, so that the sewage and sludge particles are fully in contact, thereby improving the biochemical reaction efficiency and accelerating the sewage treatment speed; on the other hand, the floating sludge particles gather toward the central axis of the anaerobic tower 1 due to the centrifugal effect, and rise to the collection cover 213, which is convenient for collecting the expanded sludge particles for treatment and preventing the expanded sludge particles from dispersing and being washed out as the biogas rises.

[0045] In detail, the driving motor 216 drives the mud and water downpipe 12 to rotate through the second gear 217 and the first gear 215. The mud and water downpipe 12 carries the stirring rod 214 to stir the sewage inside the anaerobic tower 1, so that the sewage and sludge particles are in full contact. At the same time, the expanded sludge particles float and gather toward the central axis of the anaerobic tower 1 due to the centrifugal effect, and rise to the collection cover 213, thereby collecting the expanded and floating sludge particles.

[0046] Further, if Figure 5-9 As shown, the polymer component 22 includes two groups of absorption chambers 221 symmetrically opened inside the suspension column 212, a suction hole 222 opened at the bottom of the suspension column 212 and connected to the absorption chamber 221 at its upper end, an arc plate 223 slidingly arranged inside the absorption chamber 221, several groups of water nozzles 224 opened on the arc plate 223, a water storage air bag 225 arranged between the arc plate 223 and the inner wall of the absorption chamber 221 and connected to the water nozzle 224 through a hose, and a transmission rod 226 arranged on the arc plate 223 and one end of which passes through the outside of the suspension column 212.

[0047] In this embodiment, by cooperating with the compacting component 22 and the gathering component 21 , the sludge particles in the gathering cover 213 can be sucked in by the water flow, and the volume of the expanded sludge particles can be reduced, making the sludge particles more compact.

[0048] In detail, the transmission rod 226 drives the arc plate 223 to move horizontally, sucking the sludge particles in the gathering cover 213 from the suction hole 222 into the suction chamber 221, and the sludge particles roll from the bottom to the bottom of the arc plate 223 along the turbine line with the water flow. At the same time, the arc plate 223 squeezes the water storage airbag 225, and the water in the water storage airbag 225 is sprayed out from the water nozzle 224, so that the sludge particles roll repeatedly on the arc plate 223 along the water vortex, thereby reducing the volume of the expanded sludge particles and making the sludge particles denser. When the arc plate 223 is reset, the suction hole 222 is blocked by the suction plate 261, and the sludge particles flow from the gathering channel 232 to the kneading channel 231 with the water flow. The transmission rod 226 drives the arc plate 223 to move back and forth, thereby continuously sucking in the sludge particles in the gathering cover 213 for processing.

[0049] Further, if Figure 5-6 and Figure 9-12 As shown, the kneading component 23 includes a kneading channel 231 arranged inside the suspension column 212, a gathering channel 232 arranged at the lower end of the kneading channel 231 and connected to the absorption chamber 221, a static kneading plate 233 arranged on the inner wall of the kneading channel 231, a dynamic kneading plate 234 arranged on the inner wall of the kneading channel 231 and coordinated with the static kneading plate 233 for lifting, a connecting rod 235 arranged on the outer wall of the dynamic kneading plate 234 and one end of which passes through the outside of the suspension column 212, and a strip hole 236 opened on the suspension column 212 for the connecting rod 235 to be lifted and lowered.

[0050] In this embodiment, the kneading component 23 and the power component 25 cooperate to round the sludge particles, ensure the integrity of the sludge particles, and discharge the gas inside the sludge particles to reduce the buoyancy of the sludge particles.

[0051] In detail, after the sludge particles are drained from the gathering channel 232 into the kneading channel 231, the kneading blocking plate 262 blocks the gathering channel 232 to prevent the sludge particles from falling into the absorption chamber 221 again. Then, the power component 25 drives the connecting rod 235 to carry the dynamic kneading plate 234 up and down repeatedly, so that the dynamic kneading plate 234 and the static kneading plate 233 cooperate to knead the sludge particles into round shapes. Then, the rounded sludge particles rise into the puncture channel 241 with the water flow.

[0052] Further, if Figure 5-6 and Figure 11-12 As shown, the puncture assembly 24 includes a puncture channel 241 arranged at the upper end of the rubbing channel 231 and extending to the top of the suspension column 212, a sliding cavity 242 opened inside the suspension column 212, a vertical plate 243 slidably arranged inside the sliding cavity 242, several groups of puncture needles 244 arranged on the vertical plate 243, needle holes opened on the outer wall of the puncture channel 241 for the puncture needles 244 to pass through, a transmission rack 245 arranged on the vertical plate 243 and one end of which passes through the outside of the suspension column 212, and an elastic member 246 arranged between the end of the transmission rack 245 and the outer wall of the suspension column 212.

[0053] It is worth mentioning that the elastic member 246 can quickly reset the needle 244 to prevent the needle 244 from hindering the sludge particles from rising with the water flow.

[0054] In this embodiment, the puncture assembly 24 and the power assembly 25 cooperate to puncture the sludge particles, thereby facilitating the distribution of bacteria inside the sludge particles and improving the purification effect.

[0055] In detail, after the sludge particles rise into the puncture channel 241 with the water flow, the puncture blocking plate 263 blocks the lower end of the puncture channel 241. Then, the power component 25 drives the transmission rack 245 to move horizontally with the vertical plate 243, so that the needle 244 passes through the needle hole of the puncture channel 241 to puncture the sludge particles. Finally, the puncture blocking plate 263 is opened, and the sludge particles are discharged from the puncture channel 241 with the water flow. The discharged sludge particles sink to the bottom of the anaerobic tower 1 for recycling.

[0056] Further, if Figure 4-14 As shown, the sludge treatment mechanism 2 further includes a power assembly 25 provided on the hanging plate 211 and used to drive the aggregation assembly 22, the kneading assembly 23 and the puncture assembly 24 to work synchronously, and a water blocking assembly 26 provided inside the hanging column 212 and used to control the direction of water flow;

[0057] The power assembly 25 includes two groups of L-shaped hangers 251 that are respectively passed through and slidably arranged on the hanging plate 211 and whose lower ends are connected to the transmission rod 226, a wave plate 252 arranged on the L-shaped hanger 251 and used to drive the connecting rod 235 to move the kneading plate 234 up and down, a limiting groove provided on the wave plate 252, a push rod 253 provided on the connecting rod 235 and whose lower end is slidably engaged with the limiting groove, a ratchet 254 provided on the outer wall of the hanging column 212 through a bracket and used to drive the transmission rack 245, an active rack 255 provided on the L-shaped hanger 251 and used to drive the ratchet 254, a power disk 256 provided on the outer wall of the mud and water downpipe 12 and used to drive the L-shaped hanger 251 to move, and an annular sliding groove provided on the outer wall of the power disk 256 and slidably engaged with the end of the L-shaped hanger 251;

[0058] It is worth mentioning that the active rack 255 can only drive the transmission rack 245 to move inward through the ratchet 254, and complete the puncturing work with the needle 244. When the active rack 255 is reset, the ratchet 254 loses power, and the transmission rack 245 is driven by the elastic member 246 to quickly reset with the needle 244, thereby preventing the needle 244 from hindering the sludge particles from rising with the water flow.

[0059] The water blocking assembly 26 includes a suction blocking plate 261 slidably arranged inside the suspension column 212 and used to block the suction hole 222, a rubbing blocking plate 262 slidably arranged inside the suspension column 212 and used to block the gathering channel 232, a puncture blocking plate 263 slidably arranged inside the suspension column 212 and located between the rubbing channel 231 and the puncture channel 241, a linkage rod 264 arranged between the puncture blocking plate 263 and the rubbing blocking plate 262, a stepping motor 265 arranged on the outer wall of the suspension column 212, an I-type turntable 266 arranged on the output shaft of the stepping motor 265, two groups of linear slides 267 opened on the I-type turntable 266, a first extension rod 268 arranged on the linkage rod 264 and one end of which is slidably matched with a linear slide 267, and a second extension rod 269 arranged on the suction blocking plate 261 and one end of which is slidably matched with another linear slide 267.

[0060] It should be noted that when the aggregation component 22 is working, the suction and blocking plate 261 is opened, and the kneading plate 262 and the puncture plate 263 are closed synchronously to prevent the water flow and sludge particles in the puncture channel 241 and the kneading channel 231 from falling back into the absorption chamber 221, ensuring that the water flow can only enter the absorption chamber 221 from the suction hole 222, thereby sucking out the sludge particles in the collection cover 213; when the arc plate 223 of the aggregation component 22 is reset, the suction and blocking plate 261 is quickly closed, and the kneading plate 262 and the puncture plate 263 are opened synchronously, so that the arc plate 223 pushes the sewage and sludge particles in the absorption chamber 221 to the kneading channel 231. At the same time, the original sludge particles in the kneading channel 231 rise with the water flow to the puncture channel 241, and the original sludge particles in the puncture channel 241 are discharged with the rising water flow, and the discharged sludge particles sink to the bottom of the anaerobic tower 1 for recycling.

[0061] In this embodiment, by cooperating with the power component 25 and the water blocking component 26, on the one hand, the aggregation component 22, the kneading component 23 and the puncture component 24 can be driven to work synchronously, thereby ensuring the continuity of the sludge particle treatment work and improving the sludge particle treatment efficiency; on the other hand, the water flow direction can be controlled to ensure that the sludge particles rise to the aggregation component 22, the kneading component 23 and the puncture component 24 in turn with the water flow, thereby ensuring the smoothness of the sludge particle treatment work.

[0062] In detail, when the mud and water downpipe 12 drives the two L-shaped hangers 251 to move outward through the power disk 256, the stepper motor 265 drives the blocking and suction plate 261 to open through the work-type rotating frame 266, and the kneading blocking plate 262 and the puncture blocking plate 263 are closed synchronously, and the L-shaped hanger 251 moves horizontally with the arc plate 223 through the transmission rod 226, and the sludge particles in the collection cover 213 are sucked into the absorption chamber 221. At the same time, the L-shaped hanger 251 drives the dynamic kneading plate 234 to rise and fall repeatedly through the wave plate 252 and the top rod 253, so that the dynamic kneading plate 234 and the static kneading plate 233 cooperate to knead the sludge particles into round shapes. At the same time, the L-shaped hanger 251 drives the needle 244 to complete the puncture work through the active rack 255, the ratchet 254 and the transmission rack 245; When 256 drives the two L-shaped hangers 251 to move inward, the transmission rack 245, driven by the elastic member 246, quickly resets with the needle 244 to prevent the needle 244 from hindering the sludge particles from rising with the water flow. At the same time, the stepper motor 265 drives the suction plate 261 to close through the I-type rotating frame 266, and the kneading plate 262 and the puncture plate 263 are opened synchronously. The L-shaped hanger 251 resets with the arc plate 223 through the transmission rod 226, so that the arc plate 223 pushes the sewage and sludge particles in the absorption chamber 221 to the kneading channel 231. At the same time, the original sludge particles in the kneading channel 231 rise with the water flow into the puncture channel 241, and the original sludge particles in the puncture channel 241 are discharged with the water flow. The discharged sludge particles sink to the bottom of the anaerobic tower 1 for recycling.

[0063] Further, if Figure 1-3 As shown, a gas-liquid separator 13 is provided on the top of the anaerobic tower 1, and the upper end of the mud-water downpipe 12 is connected to the gas-liquid separator 13. The three-phase separators 11 are divided into two groups and arranged inside the anaerobic tower 1. Both groups of the three-phase separators 11 are provided with a rising pipe 14, and the rising pipe 14 extends into the gas-liquid separator 13.

[0064] It is worth mentioning that a rough treatment zone is formed between one of the three-phase separators 11 and the bottom of the anaerobic tower 1, and a fine treatment zone is formed between the two three-phase separators 11. The biogas on the two three-phase separators 11 flows to the gas-liquid separator 13 through the riser 14, and the biogas is then discharged after being processed by the gas-liquid separator 13;

[0065] A water distributor 15 is provided at the bottom of the anaerobic tower 1, and the water distributor 15 includes a water inlet pipe 151 arranged on the outer wall of the anaerobic tower 1 and a water distribution pipe 152 arranged on the water inlet pipe 151 and located at the bottom of the anaerobic tower 1. A diffusion cover 121 is provided at the lower end of the muddy water downcomer 12, and the diffusion cover 121 is located above the water distribution pipe 152.

[0066] In this embodiment, the water distributor 15, the three-phase separator 11 and the gas-liquid separator 13 cooperate to complete the internal circulation anaerobic reaction.

[0067] In detail, the sewage flows into the anaerobic tower 1 from the water inlet pipe 151, and is then evenly distributed at the bottom of the anaerobic tower 1 through the water distribution pipe 152. After the sewage is treated by the biochemical reaction of the sludge particles, the generated biogas is treated by the three-phase separator 11 and flows along the riser 14 to the gas-liquid separator 13. The biogas is then treated by the gas-liquid separator 13 and discharged. Finally, the muddy water in the gas-liquid separator 13 flows back to the bottom of the anaerobic tower 1 from the muddy water downcomer 12, completing an internal circulation anaerobic reaction.

[0068] Example 2

[0069] like Figure 1-2 As shown, the components identical or corresponding to those in the first embodiment are designated by the corresponding reference numerals in the first embodiment. For simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0070] Further, if Figure 1-2 As shown, a water outlet pipe 16 is provided near the top of the anaerobic tower 1 , and the sewage treated by the anaerobic tower 1 is discharged from the water outlet pipe 16 .

[0071] Working process:

[0072] First, the driving motor 216 of the gathering component 21 drives the mud and water downpipe 12 to rotate through the second gear 217 and the first gear 215. The mud and water downpipe 12 carries the stirring rod 214 to stir the sewage inside the anaerobic tower 1. Due to the centrifugal effect, the floating sludge particles rise and gather in the gathering cover 213. The gathering component 22 sucks the expanded sludge particles in the gathering cover 213 and reduces the volume of the sludge particles through the rotating water flow and the guidance of the arc plate 223. Then, the sludge particles enter the kneading channel 231. The dynamic kneading plate 234 of the kneading component 23 cooperates with the dynamic kneading plate 234 to roll the sludge particles into balls and discharge the gas inside the sludge particles. Then, the sludge particles enter the puncture channel 241, and the needle 244 punctures the sludge particles. Finally, the sludge particles are discharged from the puncture channel 241. The discharged sludge particles fall to the bottom of the anaerobic tower 1 due to their own weight for recycling.

[0073] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the invention.

[0074] Of course, in this technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0075] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art based on the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An internal circulation gaslift loop anaerobic reactor, comprising a three-phase separator arranged inside an anaerobic tower and a mud-water downcomer rotatably arranged inside the anaerobic tower and passing through the middle of the three-phase separator, characterized in that: It also includes a sludge processing mechanism arranged at the bottom of the three-phase separator; The sludge processing mechanism includes a gathering component disposed at the bottom of the three-phase separator and used to gather floating sludge particles, a compacting component disposed on the gathering component and used to suck in the sludge particles and reduce their volume, a kneading component disposed on the gathering component and used to roll the dense sludge particles into balls, and a puncturing component disposed on the gathering component and used to puncture the surfaces of the rolled-up sludge particles. The sludge processing mechanism compacts, rolls, and punctures the expanded sludge particles, and discharges them for reuse, thereby reducing the amount of sludge particles washed out. The retraction assembly includes a sling arranged at the bottom of the three-phase separator through two sets of sling plates and sleeved on the mud and water downpipe, a retraction cover arranged at the bottom of the sling, a stirring rod arranged at the lower end of the mud and water downpipe, a first gear arranged on the mud and water downpipe, a driving motor arranged on the three-phase separator, and a second gear arranged on the output shaft of the driving motor and used to drive the first gear; The polymerizing assembly includes two groups of symmetrically arranged absorption chambers inside the suspension column, a suction hole arranged at the bottom of the suspension column and having an upper end connected to the absorption chamber, an arc plate slidably arranged inside the absorption chamber, a plurality of water nozzles arranged on the arc plate, a water storage air bag arranged between the arc plate and the inner wall of the absorption chamber and connected to the water nozzle through a hose, and a transmission rod arranged on the arc plate and having one end extending to the outside of the suspension column; The kneading assembly includes a kneading channel arranged inside the suspension column, a gathering channel arranged at the lower end of the kneading channel and connected to the absorption chamber, a static kneading plate arranged on the inner wall of the kneading channel, a dynamic kneading plate arranged on the inner wall of the kneading channel and coordinated with the static kneading plate, a connecting rod arranged on the outer wall of the dynamic kneading plate and one end of which passes through the outside of the suspension column, and a strip hole opened on the suspension column for the connecting rod to be raised and lowered; The puncture assembly includes a puncture channel arranged at the upper end of the rubbing channel and extending to the top of the suspension column, a sliding cavity opened inside the suspension column, a vertical plate slidably arranged inside the sliding cavity, several groups of needles arranged on the vertical plate, needle holes opened on the outer wall of the puncture channel for the needles to pass through, a transmission rack arranged on the vertical plate and one end of which passes through the outside of the suspension column, and an elastic member arranged between the end of the transmission rack and the outer wall of the suspension column.

2. The internal circulation airlift loop anaerobic reactor according to claim 1, characterized in that: The sludge treatment mechanism also includes a power component arranged on the hanging plate and used to drive the aggregation component, the kneading component and the puncture component to work synchronously, and a water blocking component arranged inside the hanging column and used to control the direction of water flow.

3. The internal circulation airlift loop anaerobic reactor according to claim 2, characterized in that: The power assembly includes two groups of L-shaped hangers that are respectively passed through and slidably arranged on the hanging plate and whose lower ends are connected to the transmission rod, a wave plate arranged on the L-shaped hanger and used to drive the connecting rod to move the kneading plate up and down, a limiting groove provided on the wave plate, a top rod provided on the connecting rod and whose lower end is slidably matched with the limiting groove, a ratchet provided on the outer wall of the hanging column through a bracket and used to drive the transmission rack, an active rack provided on the L-shaped hanger and used to drive the ratchet, a power disk provided on the outer wall of the mud and water downpipe and used to drive the L-shaped hanger to move, and an annular slide groove provided on the outer wall of the power disk and slidably matched with the end of the L-shaped hanger.

4. The internal circulation airlift loop anaerobic reactor according to claim 2, characterized in that: The water blocking assembly includes a suction blocking plate that is slidably arranged inside the suspension column and used to block the suction hole, a kneading blocking plate that is slidably arranged inside the suspension column and used to block the gathering channel, a puncture blocking plate that is slidably arranged inside the suspension column and located between the kneading channel and the puncture channel, a linkage rod that is arranged between the puncture blocking plate and the kneading blocking plate, a stepping motor arranged on the outer wall of the suspension column, an I-type turntable arranged on the output shaft of the stepping motor, two groups of linear slides opened on the I-type turntable, a first extension rod that is arranged on the linkage rod and one end of which is slidably matched with a linear slide, and a second extension rod that is arranged on the suction blocking plate and one end of which is slidably matched with another linear slide.

5. The internal circulation airlift loop anaerobic reactor according to claim 2, characterized in that: A gas-liquid separator is provided on the top of the anaerobic tower, the upper end of the mud-water downpipe is connected to the gas-liquid separator, the three-phase separator is divided into two groups and arranged at intervals inside the anaerobic tower, and both groups of the three-phase separators are provided with rising pipes, which extend into the gas-liquid separator.

6. The internal circulation airlift loop anaerobic reactor according to claim 2, characterized in that: A water distributor is provided at the bottom of the anaerobic tower, which includes a water inlet pipe arranged on the outer wall of the anaerobic tower and a water distribution pipe arranged on the water inlet pipe and located at the bottom of the anaerobic tower. A diffusion cover is provided at the lower end of the muddy water downcomer, which is located above the water distribution pipe.

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