Anti-clogging anaerobic tank water distributor structure and anti-clogging method thereof

Abstract

The application relates to an anti-clogging water distributor structure of an anaerobic tank and an anti-clogging method thereof, and relates to the technical field of water distributors of anaerobic tanks. The water distributor structure comprises a vertically arranged tank body and a water distribution pipe arranged in the tank body. The water distribution pipe is provided with multiple groups, the multiple groups of water distribution pipes are arranged at intervals, the bottom of the water distribution pipe is rotationally provided with a water distribution assembly, the water distribution assembly is provided with multiple groups, the multiple groups of water distribution assemblies are uniformly arranged at intervals along the length direction of the water distribution pipe, the bottom of the water distribution pipe is provided with a connecting pipe, the water distribution pipe is further provided with a cleaning assembly for cleaning the center part of the water distribution pipe and an auxiliary assembly for assisting the liquid outlet of the water distribution pipe on the side. The application has the effects of reducing the clogging of the water distribution port, reducing the manual cleaning of the water distribution port, prolonging the maintenance cycle, and improving the water distribution efficiency.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of anaerobic tanks, in particular to an anti-blocking water distributor structure of an anaerobic tank and a blocking prevention method thereof. BACKGROUND

[0002] The anaerobic tank for sewage treatment is a device for decomposing organic matter in an anaerobic environment by using anaerobic microorganisms, and is widely used in high-concentration organic wastewater treatment. The core function is to convert organic matter into methane and carbon dioxide through an anaerobic biodegradation process, and to remove pollutants such as COD, BOD, and nitrogen and phosphorus in wastewater, thereby achieving the dual goals of water purification and energy recovery.

[0003] The water distribution system of an anaerobic reactor (such as a UASB or IC reactor) usually adopts a bottom water distribution method, and its typical structure includes a vertically arranged cylindrical tank body, and a water distribution pipe assembly arranged at the bottom of the tank body. The water distribution pipe assembly is composed of multiple groups of parallelly arranged water distribution pipe units, and the extension direction of each water distribution pipe unit is perpendicular to the axis of the tank body. The bottom of the pipe wall of each water distribution pipe is provided with a water distribution hole, and the opening direction of the water distribution hole is parallel to the axis of the tank body, so that when wastewater is sprayed through the water distribution hole, a flow field rising along the axis direction of the tank body is formed, thereby driving the anaerobic activated sludge deposited at the bottom of the tank body to surge upwards, and realizing efficient contact and mixing of the wastewater and the sludge.

[0004] In the related art, since the opening direction of the water distribution hole is parallel to the axis of the tank body, suspended solids (such as solid particles and fibrous substances that have not completely settled) and microbial metabolites (such as extracellular polymers) carried by the wastewater during spraying are easily deposited on the inner wall of the water distribution hole. After long-term operation, the effective flow area of the hole is reduced, the uniformity of water distribution is significantly decreased, and the treatment efficiency of the reactor is affected. At the same time, the internal environment of the anaerobic reactor is a harsh environment (pH value fluctuation, existence of toxic substances) in which high-concentration organic wastewater and anaerobic sludge coexist. Under the conventional operation state, the water distribution hole cannot be dredged. Only during the overhaul period, the reactor can be emptied and manually cleaned to restore the water distribution function, which results in a long maintenance period, high operation complexity, and high downtime cost. Therefore, improvement is needed. SUMMARY

[0005] In order to reduce the blocking of the water distribution port, reduce the manual cleaning of the water distribution port, prolong the maintenance period, and improve the water distribution efficiency, the application provides an anti-blocking water distributor structure of an anaerobic tank and a blocking prevention method thereof.

[0006] The anti-blocking water distributor structure of the anaerobic tank and the blocking prevention method thereof provided by the application adopt the following technical solutions:

[0007] The application discloses an anti-clogging water distributor structure of an anaerobic tank and an anti-clogging method thereof.

[0008] The water distributor assembly comprises a rotating rod rotatably connected to the connecting pipe and a water outlet pipe arranged on the rotating rod, the water outlet pipe is obliquely arranged towards the bottom of the tank, and the water outlet pipe comprises two groups, the two groups of water outlet pipes are arranged at two ends of the rotating rod, and the two groups of water outlet pipes are oppositely and centrally symmetrically arranged.

[0009] The auxiliary assembly comprises a first adjusting ring slidingly arranged on the connecting pipe, a second adjusting ring arranged on the rotating rod and an adjusting piece for slidingly adjusting the first adjusting ring, a knocking hammer is rotatably arranged on the first adjusting ring, the knocking hammer is movably attached to the connecting portion of the water distributor pipe and the connecting pipe, a plurality of groups of auxiliary assemblies are uniformly arranged at intervals on each water distributor pipe, the first adjusting rings on the same water distributor pipe are staggered in height, and adjacent knocking hammers on the water distributor pipe alternately knock the water distributor pipe.

[0010] The cleaning assembly comprises a third adjusting ring slidingly arranged on the connecting pipe and a fourth adjusting ring arranged on the rotating rod, and the water distributor pipe is provided with an auxiliary liquid outlet, and the auxiliary liquid outlet is provided with a blocking piece.

[0011] When the water outlet pipe is blocked, the blocking piece opens the auxiliary liquid outlet.

[0012] When the water outlet pipe is opened, the blocking piece blocks the auxiliary liquid outlet.

[0013] By adopting the above technical scheme, when normal anaerobic treatment is performed, wastewater enters the rotating rod through the connecting pipe at the bottom of the water distributor pipe and is sprayed from the water outlet pipe. Since the water outlet pipe is obliquely arranged and comprises two groups of water outlet pipes, the water flow drives the water outlet pipe to rotate, the rotation of the water outlet pipe disturbs the sludge in the tank, efficient and uniform mixing of the wastewater and the sludge is realized, and the efficiency of subsequent anaerobic treatment is improved.

[0014] Meanwhile, during the continuous anaerobic treatment process, when solid impurities in the wastewater accumulate at the corners of the water distributor pipe, the knocking hammer arranged in rotation knocks the corners of the water distributor pipe, thereby reducing the clogging of the water distributor pipe by the solid impurities.

[0015] When the water distribution pipe on the side is not easy to mix due to sludge accumulation, the auxiliary liquid outlet is opened by the blocking piece, and the wastewater sprayed at the auxiliary liquid outlet scatters the sludge at the side of the tank body, so that the water distribution pipe rotates and the blockage of the water distribution pipe is reduced.

[0016] Optionally, the adjusting piece comprises an adjusting sleeve fixedly sleeved on the connecting pipe, a double-thread is formed on the outer peripheral wall of the adjusting sleeve, the first adjusting ring is threadedly sleeved on the adjusting sleeve, a fixing sleeve is arranged on the connecting pipe, the knocking hammer is rotatably connected to the fixing sleeve, the end of the knocking hammer away from the end abutting against the rotating rod is provided with an abutting block, a limiting block is arranged on the first adjusting ring, the limiting block movably abuts against the abutting block, and an elastic restoring piece is arranged at the rotating shaft of the knocking hammer.

[0017] By adopting the above technical scheme, when the water distribution pipe in the middle rotates, the second adjusting ring is driven to rotate, the second adjusting ring drives the first adjusting ring to rotate, the first adjusting ring is threadedly sleeved on the adjusting sleeve, the first adjusting ring ascends and descends on the adjusting sleeve along with the rotation of the first adjusting ring, the first adjusting ring drives the limiting block to ascend and descend, so that the limiting block abuts against and tightly abuts against the abutting block, the knocking hammer is driven to rotate, the knocking of the connecting pipe at the connecting position of the water distribution pipe and the connecting pipe is realized, the problem of the blockage of the water distribution pipe caused by the accumulation of sand and stones when the wastewater flows is reduced, and when the first adjusting ring slides away from the knocking hammer, the knocking hammer is automatically rotated away from the connecting pipe under the action of the elastic restoring piece until the first adjusting ring slides towards the knocking hammer in the next time, so that the knocking is performed once.

[0018] Optionally, the head part of the knocking hammer is made of elastic material, and the end side of the limiting block abutting against the abutting block is in spherical shape.

[0019] By adopting the above technical scheme, since the knocking hammer is made of elastic material, the knocking hammer made of elastic material reciprocally knocks the connecting pipe under the action of the material of the knocking hammer when the knocking hammer is driven to rotate each time, so that when the second adjusting ring rotates at high speed, the knocking hammer vibrates at high frequency under the buffering action of the elastic material of the knocking hammer, but the amplitude is small, so that the vibration of the connecting pipe is realized, and the fine solid impurities are not easy to stay in the corner of the water distribution pipe.

[0020] When the second adjusting ring rotates at low speed, the rotating amplitude of the knocking hammer is large, so that the low-frequency and large-amplitude knocking of the corner of the water distribution pipe is realized, the large-particle solid impurities are not easy to stay in the corner of the water distribution pipe, and the blockage of the water outlet pipe is reduced.

[0021] The spherical surface is arranged to improve the smoothness of the abutting and tightly abutting of the limiting block and the abutting block, the spherical surface side is subjected to wear-resistant treatment, and the service life of the knocking hammer is improved.

[0022] Optionally, the plugging member comprises a plugging plate slidingly sleeved on the water distribution pipe, and the plugging plate is in active correspondence with the auxiliary liquid outlet, the third adjusting ring is provided with an adjusting block, the plugging plate is further provided with an adjusting groove, the adjusting block is in active insertion into the adjusting groove, the side wall of the adjusting groove is in an inclined shape, and the adjusting block is in active abutment with the inclined side wall of the adjusting groove, the plugging plate is elastically slidingly arranged on the water distribution pipe, and the third adjusting ring and the fourth adjusting ring are provided with a rotating speed member for adjusting the distance between the third adjusting ring and the fourth adjusting ring.

[0023] When the rotating speed of the fourth adjusting ring is faster, the rotating speed member adjusts the distance between the third adjusting ring and the fourth adjusting ring to be smaller.

[0024] When the rotating speed of the fourth adjusting ring is slower, the rotating speed member adjusts the distance between the third adjusting ring and the fourth adjusting ring to be much larger.

[0025] By adopting the above technical scheme, when the anaerobic treatment is performed, the fourth adjusting ring rotates with the water distribution pipe, and the rotating speed is consistent with the rotating speed of the water distribution pipe, so that when the rotating speed of the fourth adjusting ring is faster than the rotating speed of the water distribution pipe, the rotating speed member adjusts the distance between the third adjusting ring and the fourth adjusting ring to be smaller, the third adjusting ring slides towards the fourth adjusting ring, the adjusting block is separated from the adjusting groove, and the plugging plate slides towards the auxiliary liquid outlet under the action of the elastic restoring force to achieve the plugging of the auxiliary liquid outlet.

[0026] When the water distribution pipe is blocked, the rotating speed of the water distribution pipe is slower, the rotating speed of the fourth adjusting ring is slower, the rotating speed member adjusts the distance between the third adjusting ring and the fourth adjusting ring to be larger, so that the third adjusting ring slides away from the fourth adjusting ring, the adjusting block is inserted into the adjusting groove, and the adjusting block is in abutment with the inclined side of the adjusting groove, so as to achieve the sliding adjustment of the plugging plate and open the auxiliary liquid outlet, thereby achieving the auxiliary liquid outlet of the wastewater and dispersing the sludge by the wastewater sprayed from the auxiliary liquid outlet, so as to reduce the blockage of the water outlet pipe.

[0027] Optionally, the rotating speed member comprises an adjusting spring arranged between the third adjusting ring and the fourth adjusting ring, the adjusting spring is in active abutment with the third adjusting ring, the third adjusting ring is provided with a first supporting rod, the fourth adjusting ring is provided with a second supporting rod, one end of the first supporting rod away from the third adjusting ring is rotationally connected with one end of the second supporting rod away from the fourth adjusting ring, and the connecting part of the first supporting rod and the second supporting rod is provided with a counterweight.

[0028] When the fourth adjusting ring is stationary or has a slower rotating speed, the adjusting spring abuts against the third adjusting ring to insert the adjusting block into the adjusting groove.

[0029] When the fourth adjusting ring rotates at a high speed, the third adjusting ring slides towards the fourth adjusting ring, and the blocking plate blocks the auxiliary liquid outlet.

[0030] By adopting the above technical scheme, when the fourth adjusting ring rotates with the water distribution pipe, the third adjusting ring is driven to rotate under the action of the first supporting rod and the second supporting rod. The counterweight arranged at the connection between the first supporting rod and the second supporting rod moves away from the connecting pipe under the action of the centrifugal force when the third adjusting ring and the fourth adjusting ring rotate. The faster the fourth adjusting ring rotates, the more the counterweight moves away from the connecting pipe, so that the first supporting rod and the second supporting rod rotate more towards the direction perpendicular to the connecting pipe, and the third adjusting ring slides towards the fourth adjusting ring.

[0031] When the fourth adjusting ring rotates at a low speed, the centrifugal force acting on the counterweight is smaller, so that the rotating angle of the first supporting rod and the second supporting rod tends to be parallel to the length direction of the connecting pipe. Under the action of the adjusting spring, the third adjusting ring moves away from the fourth adjusting ring, so that the adjusting block is inserted into the adjusting groove, and the adjusting block abuts against the inclined side of the adjusting groove, thereby achieving sliding adjustment of the blocking plate, opening the auxiliary liquid outlet by the blocking plate, and spraying the wastewater from the auxiliary liquid outlet, so as to reduce the blockage of the water outlet pipe by the sludge.

[0032] Since the water outlet pipes on the side water distribution pipes are less in the initial state and are not easy to rotate under the action of the sludge, the adjusting spring abuts against the third adjusting ring to slide, the third adjusting ring drives the adjusting block to abut against the adjusting groove, and the blocking plate is opened to the auxiliary liquid outlet in the initial state. The sludge is dispersed, so that the water outlet pipe is easy to rotate.

[0033] Under the continuous anaerobic action, the sludge will gather towards the side, so that the water distribution pipe is not easy to rotate when the sludge gathers. At this time, the blocking plate also opens the auxiliary liquid outlet, so as to reduce the influence of the sludge gathered on the side on the water outlet pipe.

[0034] Optionally, the auxiliary liquid outlet is provided with a plurality of auxiliary liquid outlets, the plurality of auxiliary liquid outlets are uniformly arranged around the circumferential side of the water distribution pipe, the blocking plate is in sliding sealing with the water distribution pipe, the opening direction of the auxiliary liquid outlet is inclined to the radial direction of the water distribution pipe, the blocking plate is annularly sleeved on the water distribution pipe, and the blocking plate is provided with an elastic protrusion, and the elastic protrusion is movably connected with the auxiliary liquid outlet.

[0035] By adopting the technical scheme, the plurality of auxiliary liquid outlets are opened, when the auxiliary liquid outlets are opened, the wastewater is obliquely sprayed from the auxiliary liquid outlets, thereby generating a rotational flow perpendicular to the rotational flow direction generated by the water distribution pipe, the stirring speed of the sludge is improved, and the stirring uniformity of the sludge at the side of the tank body is improved.

[0036] Meanwhile, the elastic protrusions arranged on the blocking plate realize sealing clamping when the auxiliary liquid outlets are blocked.

[0037] Optionally, the bottom of the tank body is provided with a micro-bubble generator and a microporous aeration pipe connected with the micro-bubble generator, the microporous aeration pipe is provided with a plurality of groups, the plurality of groups of the microporous aeration pipe correspond to the plurality of groups of the water distribution pipes one by one, the water distribution pipe is provided with a flow meter, and the flow meter is electrically connected with the micro-bubble generator.

[0038] By adopting the technical scheme, the water inflow is monitored in real time through the flow meter, data is fed back to the micro-bubble generator, a closed-loop control system is formed, the design flow rate of the micro-bubble group and the water distribution pipe is coordinated, a suitable suspension environment is formed, the granular sludge is kept in stable suspension, and the sludge is reduced.

[0039] The micron-sized bubbles generated by the microporous aeration pipe have a large specific surface area, form a gas-liquid two-phase flow at the bottom of the anaerobic tank, significantly improve the mass transfer efficiency of the substrate and the methanogen, and accelerate the complex organic matter hydrolysis and acidification process.

[0040] The application also provides an anaerobic tank water distributor anti-blocking method, which adopts the following technical scheme:

[0041] S1, normal operation, when the wastewater is normally treated in an anaerobic manner, the wastewater flow in the water distribution pipe is sprayed out through the water outlet pipe, under the action of the thrust of the water flow, the water outlet pipe is rotated, the water flow forms a rotational flow to stir the sludge in the tank body, and a uniformly mixed wastewater sludge mixture is formed, and in the process of rotating the water outlet pipe, the water outlet pipe is subjected to high-frequency small-amplitude knocking vibration through the knocking hammer;

[0042] S2, pipe blockage, when the water outlet pipe at the side is blocked, the sludge at the side is scattered through the spraying of the auxiliary liquid outlet, and the water flow of the auxiliary liquid outlet reduces the blockage of the sludge at the side to the water outlet pipe;

[0043] S3, pipe blockage, when the water outlet pipe at the middle is blocked, the water outlet pipe is blocked by the sand and gravel in the wastewater, the knocking hammer knocks at high frequency and low amplitude or low frequency and high amplitude according to the rotating speed of the water outlet pipe, the water distribution pipe is dredged, and the blockage of the water distribution pipe is reduced.

[0044] In summary, the application has at least one of the following beneficial technical effects:

[0045] 1. By setting the water distribution pipe and rotating the set water outlet pipe, when the wastewater is discharged, the water outlet pipe is rotated at this time to form a cyclone to disperse the sludge, thereby reducing the blockage of the sludge to the middle water outlet pipe, and the knocking hammer rotatingly arranged on the middle water distribution pipe knocks the connecting pipe to reduce the sand blockage at the bend of the water distribution pipe;

[0046] 2. By rotatingly arranging the water outlet pipe on the side water distribution pipe and opening the auxiliary liquid outlet on the water distribution pipe, when the side water distribution pipe is blocked, the auxiliary liquid outlet disperses the sludge at this time to reduce the blockage of the water outlet pipe;

[0047] 3. At the same time, by setting the third adjusting ring, the fourth adjusting ring and the adjusting block, the sealing plate is slidingly adjusted with the change of the rotating speed of the fourth adjusting ring to realize the opening or sealing of the auxiliary liquid outlet. BRIEF DESCRIPTION OF DRAWINGS

[0048] Figure 1 is the overall structure schematic diagram of the embodiment of the application;

[0049] Figure 2 is the connection structure schematic diagram of the water distribution assembly;

[0050] Figure 3 is the connection structure schematic diagram of the auxiliary assembly;

[0051] Figure 4 is the connection structure schematic diagram of the rotating speed part.

[0052] The drawings show that: 1, tank body; 11, water distribution pipe; 12, connecting pipe; 2, water distribution assembly; 21, rotating rod; 22, water outlet pipe; 3, auxiliary assembly; 32, second adjusting ring; 33, knocking hammer; 34, adjusting part; 341, adjusting sleeve; 342, fixed sleeve; 343, limiting block; 344, abutting block; 345, elastic recovery part; 41, third adjusting ring; 42, fourth adjusting ring; 43, auxiliary liquid outlet; 44, sealing part; 441, sealing plate; 442, adjusting block; 443, adjusting groove; 45, rotating speed part; 451, adjusting spring; 452, first supporting rod; 453, second supporting rod; 454, counterweight; 5, micro-bubble generator; 51, micro-porous aeration pipe; 52, flowmeter. DETAILED DESCRIPTION

[0053] The following will be described in detail with reference to the drawings Figures 1-4 The application will be further described in detail.

[0054] The embodiment of the application discloses an anti-blocking anaerobic tank water distributor structure. Referring to Figure 1The application discloses an anti-clogging water distributor structure of an anaerobic tank, which comprises a vertically arranged tank body 1, a plurality of water distribution pipes 11 arranged in the tank body 1, and a plurality of water distribution assemblies 2 arranged at the water distribution pipes 11.

[0055] With reference to Figure 1 and Figure 2 , the water distribution assembly 2 comprises a rotating rod 21 rotatably connected to the lower end of the connecting pipe 12, two groups of water outlet pipes 22 symmetrically arranged at the two ends of the rotating rod 21, and the water outlet pipes 22 are obliquely arranged towards the bottom of the tank body 1 and symmetrically arranged at the center. After the wastewater enters the connecting pipe 12 through the water distribution pipe 11, the wastewater is distributed to the water outlet pipes 22 through the rotating rod 21, the oblique arrangement and reverse injection of the water outlet pipes 22 form a rotary torque, the rotating rod 21 is driven to rotate around the axis of the connecting pipe 12, and then the water outlet pipes 22 are driven to form a rotational flow field in the tank body 1, so that the sludge and the wastewater are uniformly mixed.

[0056] Meanwhile, an auxiliary assembly 3 for assisting the water distribution pipe 11 to discharge liquid is arranged on the water distribution pipe 11, with reference to Figure 2 and Figure 3 , the auxiliary assembly 3 comprises a first adjusting ring slidably sleeved on the connecting pipe 12, a second adjusting ring 32 fixed to the rotating rod 21 and an adjusting piece 34. The second adjusting ring 32 is fixedly connected with a limiting rod, the limiting rod is slidably penetrated through the first adjusting ring, the adjusting piece 34 comprises an adjusting sleeve 341 fixed to the connecting pipe 12, a bidirectional thread is formed in the outer peripheral wall of the adjusting sleeve 341, and the first adjusting ring is threadedly sleeved on the adjusting sleeve 341. A fixed sleeve 342 is fixedly connected to the connecting pipe 12, a knocking hammer 33 is rotatably connected to the fixed sleeve 342, the hammer head portion of the knocking hammer 33 is made of elastic rubber material, one end of the hammer head portion is movably attached to the outer wall of the water distribution pipe 11 or the connecting pipe 12, and the other end is provided with an abutting block 344. A limiting block 343 is arranged on the first adjusting ring, and the end surface of the limiting block 343 is in spherical surface contact with the abutting block 344. When the rotating rod 21 rotates, the second adjusting ring 32 is synchronously rotated, the second adjusting ring 32 drives the first adjusting ring to rotate through the limiting rod, and the first adjusting ring is axially lifted and lowered along the connecting pipe 12 due to the threaded cooperation between the first adjusting ring and the adjusting sleeve 341.

[0057] When the first adjusting ring rises, the limiting block 343 pushes the clamping block 344, causing the striking hammer 33 to rotate around the pivot and strike the outer wall of the connecting pipe 12; when the first adjusting ring falls, the striking hammer 33 resets under the action of the elastic return member 345. High-frequency low-amplitude striking reduces the adhesion of fine impurities, while low-frequency high-amplitude striking removes large particles of blockage.

[0058] In its initial state, and because there are fewer outlet pipes 22 on the side water distribution pipe 11, the outlet pipes 22 on the side water distribution pipe 11 are not easily rotated by the sludge. Therefore, a cleaning component is also provided on the side water distribution pipe 11, as shown in the reference. Figure 3 and Figure 4 The cleaning assembly includes a third adjusting ring 41 slidably fitted onto the connecting pipe 12, a fourth adjusting ring 42 fixed to the rotating rod 21, and a rotating component 45. Multiple auxiliary outlets 43 are circumferentially opened on the water distribution pipe 11. An annular sealing plate 441 is slidably sealed at each auxiliary outlet 43, and the inner wall of the sealing plate 441 has elastic protrusions that engage with the auxiliary outlets 43. An adjusting block 442 is provided on the third adjusting ring 41, and the sealing plate 441 has an inclined adjusting groove 443. The adjusting block 442 is movably inserted into the adjusting groove 443 and fits against the inclined side wall.

[0059] The rotating component 45 includes an adjusting spring 451 connecting the third adjusting ring 41 and the fourth adjusting ring 42, a first support rod 452, a second support rod 453, and a counterweight 454. One end of the first support rod 452 is fixed to the third adjusting ring 41, one end of the second support rod 453 is fixed to the fourth adjusting ring 42, and the other ends of the two rods are rotatably connected and fitted with the counterweight 454. When the rotation speed of the water distribution pipe 11 increases, the counterweight 454 moves outward under the action of centrifugal force, causing the first support rod 452 and the second support rod 453 to tend to be vertically connected to the pipe 12. The distance between the third adjusting ring 41 and the fourth adjusting ring 42 decreases, the adjusting block 442 disengages from the adjusting groove 443, and the sealing plate 441 seals the auxiliary outlet 43 under the elastic restoring force. When the rotation speed of the water distribution pipe 11 decreases, the counterweight 454 retracts, the adjusting spring 451 pushes the third adjusting ring 41 away from the fourth adjusting ring 42, the adjusting block 442 inserts into the adjusting groove 443 and slides along the inclined side wall, driving the sealing plate 441 to open the auxiliary outlet 43. Wastewater sprays out from the inclined auxiliary outlet 43 to form a vertical vortex, which disperses the sludge on the side.

[0060] The flow meter 52 inside the water distribution pipe 11 monitors the influent flow rate in real time, and the data is fed back to the microbubble generator 5. The microbubble generator 5 adjusts the amount of bubbles generated by the microporous aeration pipe 51 according to the flow rate to maintain a stable gas-liquid two-phase flow field at the bottom of the tank. The micron-sized bubbles (50-200μm) generated by the microporous aeration pipe 51 form a uniform air cushion at the bottom of the tank, improving the mass transfer efficiency between the substrate and methanogenic bacteria. At the same time, it works in synergy with the swirling flow of the water distribution pipe 11 to keep sludge particles suspended (lateral difference in sludge concentration gradient ≤5%, longitudinal difference ≤10%), thus preventing sludge caking.

[0061] The application further discloses an anti-blocking method of the anti-blocking water distributor of the anaerobic tank, which comprises the following steps: S1, normal operation; when the wastewater is normally treated by anaerobic treatment, the wastewater flow in the water distribution pipe 11 is sprayed out through the water outlet pipe 22, under the action of the thrust of the water flow, the water outlet pipe 22 is rotated, the water flow forms a cyclone to stir the sludge in the tank body 1, and a uniformly mixed wastewater sludge mixture is formed; meanwhile, in the process of the rotation of the water outlet pipe 22, the water outlet pipe 22 is subjected to high-frequency small-amplitude knocking vibration through the knocking hammer 33;

[0062] S2, water pipe blocking; when the water outlet pipe 22 on the side is blocked, the sludge on the side is often accumulated to a higher degree than the sludge in the middle, therefore, the sludge on the side is scattered through the spraying of the auxiliary liquid outlet 43, and the water flow of the auxiliary liquid outlet 43 reduces the blocking of the sludge on the side to the water outlet pipe 22;

[0063] S3, water pipe blocking; when the water outlet pipe 22 in the middle is blocked, the sand and gravel in the wastewater often block the water outlet pipe 22, the water distribution pipe 11 is dredged through the high-frequency low-amplitude or low-frequency large-amplitude knocking of the knocking hammer 33 according to the rotating speed of the water outlet pipe 22, and the blocking of the water distribution pipe 11 is reduced.

[0064] The above are preferred embodiments of the application, and the protection scope of the application is not limited thereto, therefore: any equivalent change made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A structure for an anti-clogging anaerobic tank water distributor, characterized in that: The system includes a vertically arranged tank body (1) and a water distribution pipe (11) installed inside the tank body (1). The water distribution pipe (11) is provided in multiple sets, and the multiple sets of water distribution pipes (11) are arranged at intervals. A water distribution component (2) is rotatably installed at the bottom of the water distribution pipe (11). There are multiple water distribution components (2), and the multiple water distribution components (2) are evenly arranged at intervals along the length direction of the water distribution pipe (11). A connecting pipe (12) is provided at the bottom of the water distribution pipe (11). The water distribution pipe (11) is also provided with an auxiliary component (3) for cleaning the middle water distribution pipe (11) and a cleaning component for assisting the liquid discharge of the side water distribution pipes (11). The water distribution assembly (2) includes a rotating rod (21) rotatably connected to the connecting pipe (12) and a water outlet pipe (22) on the rotating rod (21). The water outlet pipe (22) is inclined toward the bottom of the tank (1), and there are two sets of water outlet pipes (22). The two sets of water outlet pipes (22) are located at both ends of the rotating rod (21), and the two sets of water outlet pipes (22) are arranged opposite each other and symmetrically at the center. The auxiliary component (3) includes a first adjusting ring slidably disposed on the connecting pipe (12), a second adjusting ring (32) disposed on the rotating rod (21), and an adjusting member (34) for sliding adjustment of the first adjusting ring. A hammer (33) is rotatably disposed on the first adjusting ring. The hammer (33) is in contact with the connection between the water distribution pipe (11) and the connecting pipe (12). Multiple sets of auxiliary components (3) are evenly spaced on each water distribution pipe (11). The first adjusting rings on the same water distribution pipe (11) are arranged at different heights. Adjacent hammers (33) on the water distribution pipe (11) alternately strike the water distribution pipe (11). The cleaning assembly includes a third adjusting ring (41) slidably disposed on the connecting pipe (12) and a fourth adjusting ring (42) disposed on the rotating rod (21). An auxiliary liquid outlet (43) is provided on the water distribution pipe (11), and a sealing member (44) is provided at the auxiliary liquid outlet (43). When the water outlet pipe (22) is blocked, the sealing member (44) opens the auxiliary liquid outlet (43); When the water outlet pipe (22) is opened, the sealing member (44) seals the auxiliary liquid outlet (43); The adjusting component (34) includes an adjusting sleeve (341) with a fixed sleeve (342) disposed on the connecting pipe (12). The outer peripheral wall of the adjusting sleeve (341) is provided with a bidirectional thread. The first adjusting ring is threadedly sleeved on the adjusting sleeve (341). The fixed sleeve (342) is rotatably disposed on the connecting pipe (12). The striking hammer (33) is rotatably connected to the fixed sleeve (342). The striking hammer (33) has a pressing block (344) at the end away from the rotating rod (21). The first adjusting ring is provided with a limiting block (343). The limiting block (343) and the pressing block (344) are movably fitted together. The striking hammer (33) has an elastic return component (345) at the pivot of the hammer (33). The hammer head of the hammer (33) is made of elastic material, and the end side of the limiting block (343) that is in contact with the pressing block (344) is spherical. The spherical side of the limiting block (343) is coated with a wear-resistant layer.

2. The anti-clogging anaerobic tank water distributor structure according to claim 1, characterized in that: The sealing component (44) includes a sealing plate (441) slidably sleeved on the water distribution pipe (11), and the sealing plate (441) corresponds movably to the auxiliary liquid outlet (43). The third adjusting ring (41) is provided with an adjusting block (442), and the sealing plate (441) is also provided with an adjusting groove (443). The adjusting block (442) is movably inserted into the adjusting groove (443). The side wall of the adjusting groove (443) is inclined, and the adjusting block (442) is movably fitted and pressed against the inclined side wall of the adjusting groove (443). The sealing plate (441) is elastically slidably disposed on the water distribution pipe (11). A rotating component (45) is provided between the third adjusting ring (41) and the fourth adjusting ring (42) to adjust the distance between the third adjusting ring (41) and the fourth adjusting ring (42). When the fourth adjusting ring (42) rotates faster, the speed-regulating element (45) adjusts the gap between the third adjusting ring (41) and the fourth adjusting ring (42) to be smaller; When the rotation speed of the fourth adjusting ring (42) is slower, the rotation speed element (45) adjusts the distance between the third adjusting ring (41) and the fourth adjusting ring (42) to be much larger.

3. The anti-clogging anaerobic tank water distributor structure according to claim 2, characterized in that: The rotating component (45) includes an adjusting spring (451) disposed between the third adjusting ring (41) and the fourth adjusting ring (42). The adjusting spring (451) is movably fitted and pressed against the third adjusting ring (41). The third adjusting ring (41) is provided with a first support rod (452), and the fourth adjusting ring (42) is provided with a second support rod (453). The end of the first support rod (452) away from the third adjusting ring (41) is rotatably connected to the end of the second support rod (453) away from the fourth adjusting ring (42). A counterweight (454) is provided at the connection between the first support rod (452) and the second support rod (453). When the fourth adjusting ring (42) is stationary or rotates slowly, the adjusting spring (451) presses against the third adjusting ring (41) to insert the adjusting block (442) into the adjusting groove (443); When the fourth adjusting ring (42) rotates at a high speed, the third adjusting ring (41) slides toward the direction of the fourth adjusting ring (42), and the sealing plate (441) seals the auxiliary liquid outlet (43).

4. The anti-clogging anaerobic tank water distributor structure according to claim 3, characterized in that: Multiple auxiliary outlets (43) are provided, and the multiple auxiliary outlets (43) are evenly distributed around the periphery of the water distribution pipe (11). The sealing plate (441) is slidably sealed with the water distribution pipe (11). The opening direction of the auxiliary outlets (43) is inclined to the radial direction of the water distribution pipe (11). The sealing plate (441) is ring-shaped and sleeved on the water distribution pipe (11). The sealing plate (441) is provided with an elastic protrusion, and the elastic protrusion is movably engaged with the auxiliary outlets (43).

5. The anti-clogging anaerobic tank water distributor structure according to claim 4, characterized in that: The tank (1) is equipped with a microbubble generator (5) and a microporous aeration pipe (51) connected to the microbubble generator (5). There are multiple sets of microporous aeration pipes (51), and each set of microporous aeration pipes (51) corresponds to a set of water distribution pipes (11). A flow meter (52) is installed in the water distribution pipe (11), and the flow meter (52) is electrically connected to the microbubble generator (5).

6. A method for preventing clogging of an anaerobic tank water distributor, based on the anti-clogging anaerobic tank water distributor structure described in claim 5, characterized in that: Includes the following steps: S1, normal operation. When the wastewater is anaerobically treated, the wastewater in the distribution pipe (11) is sprayed out through the outlet pipe (22). Under the thrust of the water flow, the outlet pipe (22) is rotated. The water flow forms a vortex that drives the sludge in the tank (1) to stir, forming a uniformly mixed wastewater-sludge mixture. At the same time, during the rotation of the outlet pipe (22), the outlet pipe (22) is subjected to high-frequency, small-amplitude knocking vibration by the hammer (33). S2, water pipe blockage. When the water pipe (22) on the side is blocked, since the sludge accumulation on the side is higher than that in the middle, the sludge on the side is dispersed by the spray of the auxiliary outlet (43), and the water flow of the auxiliary outlet (43) reduces the blockage of the water pipe (22) by the sludge on the side. S3, water pipe blockage. When the water outlet pipe (22) in the middle is blocked, the sand and gravel in the wastewater block the water outlet pipe (22). The water distribution pipe (11) is cleared by the high frequency low amplitude or low frequency high amplitude tapping of the hammer (33) according to the rotation speed of the water outlet pipe (22), thereby reducing the blockage of the water distribution pipe (11).

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