Anaerobic tank built-in water distribution device and water distribution method

Abstract

The present invention relates to the field of water treatment equipment, and specifically to a built-in water distribution device and water distribution method for an anaerobic tank, comprising a water collection tank, on which is provided a water outlet mechanism for uniformly distributing water to the interior of the anaerobic tank by unidirectional rotation. The water distribution device also includes a mixing mechanism for three-dimensionally mixing anaerobic sludge and wastewater. The present invention adopts a movable component in conjunction with the water collection tank, so that multiple groups of water pipes can rotate unidirectionally and move up and down, thereby dynamically adjusting the water distribution direction. While the water pipes move downward, the universal wheels supported by the bottom of the anaerobic tank are used to enable each group of water pipes to deflect and extend the water distribution range, thereby effectively eliminating the water distribution dead corners at the edge of the tank body and high-viscosity wastewater, and significantly improving the water distribution uniformity. The present invention adopts a push plate in conjunction with a double-helical blade rod to achieve three-dimensional mixing of anaerobic sludge and wastewater, thereby efficiently stirring the anaerobic sludge and wastewater, and improving water treatment efficiency.

Description

Technical Field

[0001] The present invention relates to the field of water treatment equipment, and in particular to an anaerobic tank built-in water distribution device and a water distribution method. Background Art

[0002] The built-in water distribution device of the anaerobic tank is one of the core components of the wastewater anaerobic treatment system. Its function is to evenly distribute the wastewater inside the anaerobic tank and promote the full mixing of the wastewater and anaerobic sludge. By optimizing the water distribution and mixing effects, the reaction efficiency of anaerobic digestion can be effectively improved, and local sludge deposition or short-circuiting can be avoided, thereby ensuring the stability and treatment capacity of the sewage treatment process.

[0003] Traditional anaerobic tank water distribution devices mostly adopt a fixed structure, such as a combination of a water collection tank and capillary water pipes below it. Specifically, the water collection tank is fixedly installed on the upper part of the anaerobic tank, and the wastewater is introduced into the tank through the capillary water pipes extending downward. The wastewater flows dispersedly through the capillary water pipes to achieve uniform distribution.

[0004] However, the existing water distribution device still has shortcomings. First, the water collection tank and capillary water pipe are fixed settings, and the water distribution direction and range cannot be dynamically adjusted, resulting in insufficient uniformity of wastewater distribution, especially at the edge of the tank or in high-viscosity wastewater, which is prone to form dead corners of water distribution. Secondly, the traditional device relies on the impact force of the water flow to produce a self-stirring effect, which makes it difficult to efficiently stir high-concentration anaerobic sludge and wastewater, resulting in poor mixing effect, which can easily cause sludge agglomeration or insufficient reaction.

[0005] The above problems ultimately lead to reduced treatment efficiency of anaerobic tanks, energy waste and unstable effluent quality, and technical improvements are urgently needed to improve overall performance. Summary of the Invention

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a built-in water distribution device and water distribution method for an anaerobic tank, including a water collection tank, on which is provided a water outlet mechanism for uniformly distributing water to the interior of the anaerobic tank by unidirectional rotation. The water distribution device also includes a mixing mechanism for three-dimensionally stirring and mixing anaerobic sludge and wastewater.

[0007] The water outlet mechanism includes several groups of water pipes arranged at equal intervals along the circumference of the water collecting tank on its lower side. Each group is composed of multiple water pipes. The water pipes in the same group are connected end to end in sequence in an upper and lower manner by a hinge. Adjacent water pipes in the same group and the uppermost water pipe and the water collecting tank are connected by hoses.

[0008] The lower side of the lowest water pipe is fixedly connected to a universal wheel, and a moving component is provided on the outside of the water collection tank for driving it to move up and down and rotate in one direction. Except for the uppermost water pipe, water outlets are evenly spaced on the remaining water pipes.

[0009] The mixing mechanism includes pushing plates arranged at equal intervals along the circumference of the water collection tank through a connecting assembly, and a double helical blade rod is fixedly installed on the lower side of the water collection tank. When the water collection tank rotates, the pushing plate and the double helical blade rod cooperate to reciprocate and push the sludge and wastewater inside the anaerobic tank.

[0010] Preferably, a hinge block is fixedly installed on the upper end of the water pipe, and except for the lowest water pipe, the lower ends of the remaining water pipes and the lower side of the water collecting tank are fixedly installed with a U-shaped hinge frame, and the hinge block is hinged to the hinge frame at the corresponding position.

[0011] Preferably, a limiting support plate is fixedly installed on the side of the hinge block, and an arc groove is opened on the vertical section of the hinge frame corresponding to the side of the limiting support plate. The limiting support plate is slidably connected to the inside of the arc groove through the raised column at its upper end.

[0012] Preferably, the movable component includes two toothed ring plates arranged up and down and movably set on the outside of the cylindrical surface of the water collecting trough, the toothed openings of the two toothed ring plates are opposite and staggered, a connecting tube is fixedly installed on the outside of the two toothed ring plates, and two symmetrically arranged linkage rods are fixedly installed on the outside of the water collecting trough and between the two toothed ring plates.

[0013] Preferably, the connecting assembly includes a driven ring rotatably arranged on the outside of the connecting cylinder, and a plurality of connecting plates are fixedly installed at the lower end of the outer side of the water collecting tank at equal intervals along its circumference. The end of the connecting plate away from the axis of the water collecting tank is rotatably connected to the push plate, and the connecting plate is connected to the driven ring in an up and down sliding manner.

[0014] Preferably, the part of the push plate that rotates in the same direction as the water collection tank is an arc-shaped structure, and the part of the push plate that rotates in the opposite direction to the water collection tank is an inclined plate structure inclined toward the axis of the water collection tank. A double ball head rod is connected to the upper side of the inclined plate structure of the push plate and the driven ring by a ball hinge.

[0015] Preferably, two groups of symmetrically arranged concentrating plates are fixed on one side of the push plate close to the axis of the water collection tank. The concentrating plates are gradually inclined toward the middle of the push plate along the direction of rotation of the water collection tank. When the upper and lower symmetrical spiral leaves of the double helical blade rod rotate, they push the sludge and wastewater in the middle to the upper and lower sides and the outside.

[0016] Preferably, a fixing seat is fixedly connected to the anaerobic tank by bolts, and two groups of peeling rakes are arranged in an upper and lower staggered manner at equal intervals in the vertical direction in the middle of the double helical blade rod, one group of which is fixedly connected to the double helical blade rod, and the other group is connected to the fixing seat in an upper and lower sliding manner and is rotatably connected to the double helical blade rod.

[0017] Preferably, a ring frame is rotatably provided on the upper part of the water collecting tank, an L-shaped water inlet pipe is fixedly installed inside the ring frame, the vertical section of the water inlet pipe is located at an eccentric position inside the water collecting tank, a filter screen is provided inside the water collecting tank and at the lower part of the water inlet pipe, and a partition plate is fixedly installed on the upper side of the filter screen.

[0018] Preferably, the present invention also provides an anaerobic tank water distribution method, the steps are as follows: S1, connect the water collection tank to the upper part of the anaerobic tank through a movable component, so that the water pipe is located inside the anaerobic tank, and introduce the wastewater into the anaerobic tank through the water collection tank and the water pipe.

[0019] S2. The water collecting tank is driven to move up and down and rotate in one direction by the moving assembly, so that the water collecting tank drives the water pipe to distribute water evenly while stirring the anaerobic sludge and wastewater.

[0020] S3. The water collection tank drives the water pipe to move up and down, so that the water pipe is supported by the bottom of the anaerobic tank through the universal wheel, so that the water pipe moves back and forth along the radial direction of the anaerobic tank to increase the uniformity of water distribution.

[0021] S4. The water collecting tank drives the push plate and the double helical blade to move synchronously, so that the water collecting tank drives the push plate to push the anaerobic sludge and wastewater to move up and down and left and right inside the anaerobic tank to mix.

[0022] The beneficial effects of the present invention are: 1. The present invention adopts a movable component in conjunction with a water collection tank, so that multiple groups of water pipes can rotate in one direction and move up and down, thereby dynamically adjusting the water distribution direction. While the water pipes move downward, the universal wheels supported by the bottom of the anaerobic tank are used to allow each group of water pipes to deflect and extend the water distribution range, thereby effectively eliminating the water distribution dead corners at the edge of the tank body and high-viscosity wastewater, and significantly improving the uniformity of water distribution.

[0023] 2. The present invention adopts the mutual cooperation of the push plate, double helical blade rod and double ball head rod in the mixing mechanism, which can drive the arc and inclined plate structure of the push plate to push the anaerobic sludge and wastewater inward through the rotation of the sump, and cooperate with the upper and lower symmetrical spiral leaves of the double helical blade rod to push the anaerobic sludge and wastewater outward, thereby realizing three-dimensional mixing of anaerobic sludge and wastewater, and then efficiently stirring the anaerobic sludge and wastewater, thereby improving water treatment efficiency.

[0024] 3. The present invention adopts a rotary cutter rake that is slidably connected to a fixed seat and a rotary cutter rake that is fixedly connected to a double helical blade rod, forming two sets of rotary cutters that have an interlaced shearing effect, further breaking up anaerobic sludge clumps. At the same time, the centralizing plate guides the anaerobic sludge and wastewater to flow toward the rotary cutter rake in a directional manner, thereby strengthening the shearing effect and improving the mixing effect of the anaerobic sludge and wastewater.

[0025] 4. The present invention uses a filter in the water collection tank to filter impurities in the wastewater to prevent impurities from clogging the water outlet of the water pipe, thereby ensuring the continuity and uniformity of water distribution. The filter rotates synchronously with the water collection tank, so that the filter can be changed to different positions in real time to filter the wastewater, ensuring the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a cross-sectional view of the water collecting trough, connecting tube, linkage rod and tooth groove ring plate in the present invention.

[0029] Figure 3 This is a front view of the water collecting trough, hinged block, water pipe and hinged frame in the present invention.

[0030] Figure 4 It is a partial cross-sectional view of the water delivery pipe, hinge block, hinge frame and limit support plate in the present invention.

[0031] Figure 5 It is a structural diagram of the driven ring, the pushing plate, the concentrating plate and the connecting plate in the present invention.

[0032] Figure 6 It is a structural schematic diagram of the water collecting trough, double helical blade, rotary cutting rake and fixing seat in the present invention.

[0033] Figure 7 1. It is a top view of the ring frame, connecting cylinder, connecting plate and pushing plate in the present invention (the direction of the arrow in the figure is the direction of rotation).

[0034] In the figure: 1. water collecting trough; 2. water outlet mechanism; 3. mixing mechanism; 21. water supply pipe; 22. universal wheel; 23. moving assembly; 24. ring frame; 31. connecting assembly; 32. pushing plate; 33. double helical blade rod; 211. hinge block; 212. hinge frame; 213. limit support plate; 231. toothed ring plate; 232. connecting cylinder; 233. linkage rod; 241. water inlet pipe; 242. filter screen; 243. partition plate; 311. driven ring; 312. connecting plate; 313. double ball head rod; 321. central plate; 331. fixing seat; 332. rotary cutting rake. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in detail. The embodiments described below are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in the art or in the product specifications shall be followed.

[0036] See Figure 1 A water distribution device built into an anaerobic tank includes a water collection tank 1, on which is provided a water outlet mechanism 2 for uniformly distributing water to the interior of the anaerobic tank by unidirectional rotation. The water distribution device also includes a mixing mechanism 3 for three-dimensionally stirring and mixing anaerobic sludge and wastewater.

[0037] When wastewater needs to be introduced into the anaerobic tank, the water collection tank 1 is first installed on the upper part of the anaerobic tank, and then the wastewater is introduced into the water collection tank 1. The water collection tank 1 evenly introduces the wastewater into the anaerobic tank through the water outlet mechanism 2, so that the wastewater and anaerobic sludge are evenly mixed. At the same time, the water collection tank 1 is moved up and down, so that the water collection tank 1 drives the water outlet mechanism 2 to dynamically adjust the water distribution direction and range. At the same time, the water collection tank 1 drives the mixing mechanism 3 to perform three-dimensional stirring and mixing of the wastewater and anaerobic sludge, thereby improving the wastewater treatment efficiency of the anaerobic tank.

[0038] See Figure 1 、 Figure 3 and Figure 4 The water outlet mechanism 2 includes several groups of water pipes 21 arranged at equal intervals along the circumference of the water collecting tank 1 on its lower side. Each group is composed of multiple water pipes 21. The water pipes 21 in the same group are connected end to end in sequence by a hinged manner. Adjacent water pipes 21 in the same group and the uppermost water pipe 21 and the water collecting tank 1 are connected by hoses.

[0039] See Figure 3 and Figure 4 The upper end of the water pipe 21 is fixedly installed with a hinge block 211. Except for the lowest water pipe 21, the lower ends of the remaining water pipes 21 and the lower side of the water collecting tank 1 are fixedly installed with a U-shaped hinge frame 212, and the hinge block 211 is hinged to the hinge frame 212 at the corresponding position.

[0040] See Figure 1 and Figure 3 The lower side of the lowest water pipe 21 is fixedly connected to a universal wheel 22, and a moving component 23 is provided on the outside of the water collection tank 1 for driving it to move up and down and rotate in one direction. Except for the uppermost water pipe 21, water outlets are evenly spaced on the remaining water pipes 21.

[0041] See Figure 1 、 Figure 2 and Figure 3 The moving component 23 includes two toothed ring plates 231 arranged up and down and movably set on the outside of the cylindrical surface of the water collecting tank 1. The toothed openings of the two toothed ring plates 231 are opposite and staggered. A connecting tube 232 is fixedly installed on the outside of the two toothed ring plates 231. Two symmetrically arranged linkage rods 233 are fixedly installed on the outside of the water collecting tank 1 and between the two toothed ring plates 231.

[0042] It should be noted that if Figure 2 As shown, the bottom position of the tooth groove of the upper tooth groove ring plate 231 corresponds to the middle of the bevel of the tooth groove of the lower tooth groove ring plate 231, and the bottom position of the tooth groove of the lower tooth groove ring plate 231 corresponds to the middle of the bevel of the tooth groove of the upper tooth groove ring plate 231. A flange is provided on the outer side of the upper end of the connecting tube 232.

[0043] See Figure 1 and Figure 2 A ring frame 24 is rotatably provided on the upper part of the water collecting tank 1, and an L-shaped water inlet pipe 241 is fixedly installed inside the ring frame 24. The vertical section of the water inlet pipe 241 is located at an eccentric position inside the water collecting tank 1. A filter screen 242 is provided on the inner side of the water collecting tank 1 and at the lower part of the water inlet pipe 241. A partition plate 243 is fixedly installed on the upper side of the filter screen 242.

[0044] It should be noted that the upper side of the anaerobic tank drives the ring frame 24 to move back and forth up and down through a fixedly installed reciprocating propulsion structure. The reciprocating propulsion structure can adopt a hydraulic cylinder in the prior art. The hydraulic cylinder body is fixedly installed on the upper side of the anaerobic tank. The telescopic section of the hydraulic cylinder is fixedly connected to the upper side of the ring frame 24. By reciprocating the telescopic section of the hydraulic cylinder, the ring frame 24 is driven to move back and forth up and down.

[0045] When wastewater needs to be introduced into the anaerobic tank, the operator fixes the flange on the connecting tube 232 on the upper end of the anaerobic tank by bolting. At the same time, the connecting tube 232 drives the water collecting tank 1 to be located at the coaxial position of the anaerobic tank through the two toothed ring plates 231, and the water collecting tank 1 drives the lower water pipe 21 to be located inside the anaerobic tank. Each group of water pipes 21 naturally droops under the action of gravity, so that the lowest water pipe 21 drives the universal wheel 22 to rest against the bottom wall of the anaerobic tank.

[0046] The wastewater is then introduced into the interior of the water collection tank 1 through the water inlet pipe 241, and the wastewater falls through the water inlet pipe 241 to the eccentric position of the filter screen 242, and the filter screen 242 is divided into several filtering areas by the partition plate 243, so that the filtering area corresponding to the lower part of the vertical section of the water inlet pipe 241 can filter the impurities in the wastewater to prevent impurities from clogging the water outlet of the water supply pipe 21 and causing uneven water distribution.

[0047] The filtered wastewater in the sump 1 then flows into the inside of the water pipe 21, and then flows into the anaerobic tank through the outlet on the water pipe 21, and is mixed with the anaerobic sludge. The organic matter in the wastewater reacts with the anaerobic sludge, thereby treating the wastewater.

[0048] In the initial state, the water collection tank 1 is located at a lower position relative to the connecting tube 232, so that the water collection tank 1 drives the linkage rod 233 thereon to move to the bottom position of the tooth groove of the lower tooth groove ring plate 231. The water collection tank 1 drives the water pipe 21 as a whole to be located at a lower position. Through the support of the universal wheel 22 by the bottom of the anaerobic tank, each group of water pipes 21 is deflected and extends radially outward along the anaerobic tank.

[0049] See Figure 4 A limiting support plate 213 is fixedly installed on the side of the hinge block 211, and an arc groove is opened on the vertical section of the hinge frame 212 corresponding to the side of the limiting support plate 213. The limiting support plate 213 is slidably connected to the inside of the arc groove through the raised column at its upper end.

[0050] When the water inlet pipe 241 starts to inject water into the water collecting tank 1, the telescopic section of the reciprocating telescopic hydraulic cylinder causes the hydraulic cylinder to first drive the ring frame 24 to move upward relative to the connecting tube 232, and the ring frame 24 drives the water delivery pipe 21 to move synchronously through the water collecting tank 1. When the water delivery pipe 21 moves upward, it deflects toward the direction close to the axis of the water collecting tank 1 under the action of gravity, causing the water delivery pipe 21 to shrink inward as a whole.

[0051] At the same time, the water collection trough 1 drives the linkage rod 233 thereon to move upward until it contacts the middle of the bevel of the tooth groove of the upper tooth groove ring plate 231, so that the linkage rod 233 is guided by the bevel of the tooth groove of the upper tooth groove ring plate 231, and then the linkage rod 233 drives the water collection trough 1 to rotate.

[0052] When the linkage rod 233 moves up to the bottom position of the tooth groove of the upper tooth groove ring plate 231, the telescopic section of the hydraulic cylinder is extended, and the water collection tank 1 drives the water pipe 21 to move downward, so that the linkage rod 233 contacts the middle part of the oblique side of the tooth groove of the lower tooth groove ring plate 231, so that the linkage rod 233 drives the water collection tank 1 to continue to rotate in the same direction along the oblique side of the tooth groove of the lower tooth groove ring plate 231. At the same time, the water pipe 21 extends outward again and rotates synchronously with the water collection tank 1.

[0053] Through the unidirectional rotation, up and down movement, and inward and outward expansion of multiple groups of water pipes 21, the water distribution direction and range are dynamically adjusted, thereby effectively eliminating the water distribution dead corners at the edge of the tank and high-viscosity wastewater, and significantly improving the uniformity of water distribution. At the same time, the rotating water pipes 21 can stir the wastewater and anaerobic sludge to a certain extent, and effectively improve the mixing effect of the wastewater and anaerobic sludge through mechanical stirring.

[0054] When the water pipe 21 deflects, the hinge block 211 on it is driven to rotate along the axis of the hinge with the upper hinge frame 212. At the same time, the hinge block 211 drives the raised column to slide inside the arc groove at the corresponding position through the limiting support plate 213, thereby limiting the deflection angle of the water pipe 21 through the arc groove to prevent the water pipe 21 from deflecting at will.

[0055] See Figure 1 、 Figure 5 and Figure 6 The mixing mechanism 3 includes a pushing plate 32 arranged at equal intervals along the circumference of the water collecting tank 1 through a connecting component 31. A double helical blade rod 33 is fixedly installed on the lower side of the water collecting tank 1. When the water collecting tank 1 rotates, the pushing plate 32 and the double helical blade rod 33 cooperate to push the sludge and wastewater inside the anaerobic tank back and forth.

[0056] See Figure 1 and Figure 5 The connecting assembly 31 includes a driven ring 311 rotatably arranged on the outside of the connecting cylinder 232, and a plurality of connecting plates 312 are fixedly installed at the lower end of the outer side of the water collecting tank 1 at equal intervals along its circumference. The end of the connecting plate 312 away from the axis of the water collecting tank 1 is rotatably connected to the push plate 32, and the connecting plate 312 is connected to the driven ring 311 for sliding up and down connection.

[0057] See Figure 1 、 Figure 5 and Figure 7 The part of the push plate 32 that rotates in the same direction as the water collecting tank 1 is an arc-shaped structure, and the part of the push plate 32 that rotates in the opposite direction to the water collecting tank 1 is an inclined plate structure inclined toward the axis of the water collecting tank 1. A double ball head rod 313 is connected to the upper side of the inclined plate structure of the push plate 32 and the driven ring 311 by a ball hinge.

[0058] When the sump 1 starts to rotate, the sump 1 drives the connecting plate 312 to rotate synchronously, and the connecting plate 312 drives the driven ring 311 to rotate synchronously, so that the driven ring 311 cooperates with the connecting plate 312 through the double ball head rod 313 to jointly drive the push plate 32 to rotate. The push plate 32 shovels the anaerobic sludge and wastewater outside the anaerobic tank to the side of the push plate 32 close to the axis of the sump 1 through the arc structure thereon.

[0059] The subsequently rotating push plate 32 pushes the anaerobic sludge and wastewater toward the axis of the sump 1 through the inclined plate structure thereon. During the up and down movement of the sump 1, the sump 1 drives the push plate 32 to move up and down synchronously relative to the driven ring 311 through the connecting plate 312, so that the driven ring 311 pushes and pulls the push plate 32 to swing back and forth through the double ball rod 313, thereby effectively increasing the pushing and mixing effect of the push plate 32 on the anaerobic sludge and wastewater.

[0060] See Figure 1 、 Figure 5 and Figure 6 Two groups of symmetrically arranged concentrating plates 321 are fixed on the side of the pushing plate 32 close to the axis of the water collecting tank 1. The concentrating plates 321 are gradually inclined toward the middle of the pushing plate 32 along the direction of rotation of the water collecting tank 1. Taking the upper group of concentrating plates 321 as an example, during the rotation process, the highest point of the concentrating plate 321 first contacts the wastewater and sludge, and the upper and lower symmetrical spiral leaves of the double helical leaf rod 33 push the sludge and wastewater in the middle to the upper and lower sides and the outside when rotating.

[0061] When the pushing plate 32 pushes the anaerobic sludge and wastewater, the pushing plate 32 pushes the anaerobic sludge and wastewater toward the middle of the pushing plate 32 through the concentrating plate 321 thereon, so that the pushing plate 32 can not only push the anaerobic sludge and wastewater on the outside toward the middle, but also push the anaerobic sludge and wastewater at the upper and lower positions of the anaerobic tank toward the middle through the concentrating plate 321.

[0062] When the sump 1 starts to rotate, the sump 1 drives the double helical blade rod 33 to rotate synchronously. The cross section of the spiral blades on the double helical blade rod 33 is a spiral line structure, so that the rotating double helical blade rod 33 can push the anaerobic sludge and wastewater in the middle to the outside, and the upper and lower symmetrical spiral blades of the double helical blade rod 33 can also push the anaerobic sludge and wastewater in the middle to the upper and lower sides. Combined with the push of the pushing plate 32 and the concentrating plate 321 on the anaerobic sludge and wastewater, the anaerobic sludge and wastewater can be pushed and mixed in multiple directions in three dimensions, effectively improving the mixing effect.

[0063] Continue reading Figure 1 、 Figure 5 and Figure 6 The anaerobic tank is fixed with a fixing seat 331 by bolts. Two groups of peeling rakes 332 are arranged in an upper and lower staggered manner at equal intervals in the vertical direction in the middle of the double helical leaf rod 33. Each group is composed of a number of peeling rakes 332 arranged at equal intervals in the vertical direction. The middle part of the peeling rake 332 is an annular structure, and the outside is a plurality of curved blade structures arranged at equal intervals. The bending directions of the curved blade structures of the two groups of peeling rakes 332 are opposite. One group is fixedly connected to the double helical leaf rod 33, and the other group is connected to the fixing seat 331 for vertical sliding and is connected to the double helical leaf rod 33 for rotation.

[0064] When the pushing plate 32 and the concentrating plate 321 push the anaerobic sludge and wastewater inward, the anaerobic sludge and wastewater move to the position of the rotary cutting rake 332, and the double helical blade rod 33 drives one group of rotary cutting rakes 332 fixedly connected thereto to rotate synchronously, while the other group of rotary cutting rakes 332 slidingly connected to the fixed seat 331 does not rotate, so that the two groups of rotary cutting rakes 332 alternately shear the anaerobic sludge and wastewater, break up anaerobic sludge clumps, and improve the mixing effect of anaerobic sludge and wastewater.

[0065] When the water collection tank 1 starts to rotate, the water collection tank 1 drives the filter screen 242 and the partition plate 243 to rotate at the same time, so that the filter screen 242 changes the filter area in real time to filter the wastewater, thereby ensuring the filtering effect and preventing blockage. The partition plate 243 is used to concentrate the wastewater in a certain filter area above the filter screen 242 to prevent the wastewater from flowing to other filter areas, effectively ensuring the efficiency of partition filtration.

[0066] In addition, the present invention also provides an anaerobic tank water distribution method, and the specific water distribution method steps are as follows: S1, the operator fixes the flange on the connecting cylinder 232 on the upper end of the anaerobic tank by bolting, so that the water pipe 21 is located inside the anaerobic tank, and the wastewater is introduced into the interior of the water collection tank 1 through the water inlet pipe 241. The wastewater is filtered through the filter screen 242 and flows into the interior of the water pipe 21. Then, the wastewater flows into the anaerobic tank through the water outlet on the water pipe 21, and the wastewater is mixed with the anaerobic sludge. The organic matter in the wastewater reacts with the anaerobic sludge, and the wastewater is treated.

[0067] S2. The telescopic section of the reciprocating telescopic hydraulic cylinder causes the water collecting tank 1 to rotate unidirectionally, and the water collecting tank 1 drives the water pipe 21 to rotate unidirectionally synchronously. The rotating water pipe 21 can stir the wastewater and anaerobic sludge to a certain extent, and the mixing effect of the wastewater and anaerobic sludge is effectively improved through mechanical stirring.

[0068] S3. The up and down movement of the water collecting tank 1 drives the water pipe 21 to move up and down and expand and contract inward and outward, thereby dynamically adjusting the water distribution direction and range, thereby effectively eliminating the water distribution dead corners at the edge of the tank and high-viscosity wastewater, and significantly improving the water distribution uniformity.

[0069] S4. The sump 1 drives the push plate 32 to rotate, so that the push plate 32 pushes the anaerobic sludge and wastewater on the outside toward the middle, and pushes the anaerobic sludge and wastewater at the upper and lower positions of the anaerobic tank toward the middle through the concentrating plate 321. The sump 1 drives the double helical blade rod 33 to rotate synchronously, pushing the anaerobic sludge and wastewater in the middle toward the outside, and pushing the anaerobic sludge and wastewater in the middle toward the upper and lower sides, thereby being able to perform multi-directional three-dimensional pushing and mixing of the anaerobic sludge and wastewater, effectively improving the mixing effect.

[0070] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, which are still covered by the scope of protection of the present invention.

Claims

1. An anaerobic tank with a built-in water distribution device, including a water collection tank, characterized in that: The water collecting tank is provided with a water outlet mechanism that distributes water evenly to the interior of the anaerobic tank by unidirectional rotation. The water distribution device also includes a mixing mechanism that stirs and mixes the anaerobic sludge and wastewater in three dimensions. The water outlet mechanism includes a plurality of groups of water pipes arranged at equal intervals along the circumference of the water collecting tank on the lower side thereof, each group consisting of a plurality of water pipes, the water pipes in the same group are connected end to end in sequence by hinged connection, and adjacent water pipes in the same group and the uppermost water pipe and the water collecting tank are connected by hoses; The lower side of the lowest water pipe is fixedly connected to a universal wheel, and a moving component is provided on the outside of the water collection tank to drive it to move up and down and rotate in one direction. Except for the uppermost water pipe, the remaining water pipes are evenly spaced with water outlets. The mixing mechanism includes a push plate arranged at equal intervals along the circumference of the water collection tank through a connecting assembly, and a double helical blade rod is fixedly installed on the lower side of the water collection tank. When the water collection tank rotates, the push plate and the double helical blade rod cooperate to reciprocate and push the sludge and wastewater inside the anaerobic tank; The upper end of the water pipe is fixedly installed with a hinge block. Except for the lowest water pipe, the lower ends of the remaining water pipes and the lower side of the water collecting tank are fixedly installed with a U-shaped hinge frame, and the hinge block is hinged to the hinge frame at the corresponding position; A limited support plate is fixedly installed on the side of the hinge block, and an arc groove is opened on the vertical section of the hinge frame corresponding to the side of the limited support plate. The limited support plate is slidably connected to the inside of the arc groove through the raised column at its upper end; The moving assembly includes two toothed ring plates arranged vertically and movably disposed on the outside of the cylindrical surface of the water collection tank, the toothed openings of the two toothed ring plates being opposite and staggered, a connecting cylinder being fixedly mounted on the outside of the two toothed ring plates, and two symmetrically arranged linkage rods being fixedly mounted on the outside of the water collection tank between the two toothed ring plates; The water collecting trough drives the water pipe to move up and down, so that the water pipe is supported by the bottom of the anaerobic tank through the universal wheel.

2. The anaerobic tank built-in water distribution device according to claim 1, characterized in that: The connecting assembly includes a driven ring rotatably arranged on the outside of the connecting cylinder, and a plurality of connecting plates are fixedly installed at the lower end of the outer side of the water collecting tank at equal intervals along its circumference. The end of the connecting plate away from the axis of the water collecting tank is rotatably connected to the push plate, and the connecting plate is connected to the driven ring in an up and down sliding manner.

3. The built-in water distribution device of an anaerobic tank according to claim 2, characterized in that: The part of the push plate that rotates in the same direction as the water collection tank is an arc-shaped structure, and the part of the push plate that rotates in the opposite direction to the water collection tank is an inclined plate structure inclined toward the axis of the water collection tank. A double ball head rod is connected to the driven ring by a ball hinge between the upper side of the inclined plate structure of the push plate.

4. The built-in water distribution device of an anaerobic tank according to claim 1, characterized in that: Two groups of symmetrically arranged concentrating plates are fixed on one side of the pushing plate close to the axis of the water collecting tank. The concentrating plates are gradually inclined toward the middle of the pushing plate along the direction of rotation of the water collecting tank. When the upper and lower symmetrical spiral leaves of the double helical leaf rod rotate, they push the sludge and wastewater in the middle to the upper and lower sides and the outside.

5. The built-in water distribution device of the anaerobic tank according to claim 1, characterized in that: The anaerobic tank is fixed with a fixing seat by bolts, and two groups of peeling rakes are arranged in an upper and lower staggered manner at equal intervals in the vertical direction in the middle of the double helical leaf rod, one group of which is fixedly connected to the double helical leaf rod, and the other group is connected to the fixing seat for vertical sliding and is rotatably connected to the double helical leaf rod.

6. The anaerobic tank built-in water distribution device according to claim 1, characterized in that: A ring frame is rotatably provided on the upper part of the water collecting tank, and an L-shaped water inlet pipe is fixedly installed inside the ring frame. The vertical section of the water inlet pipe is located at an eccentric position inside the water collecting tank. A filter is provided inside the water collecting tank and at the lower part of the water inlet pipe, and a partition plate is fixedly installed on the upper side of the filter.

7. A method for distributing water to an anaerobic tank, using the anaerobic tank built-in water distribution device according to any one of claims 1 to 6, characterized in that: The water distribution method steps are as follows: S1. Connect the water collection tank to the upper part of the anaerobic tank through the mobile component so that the water pipe is located inside the anaerobic tank, and introduce the wastewater into the anaerobic tank through the water collection tank and the water pipe; S2. The water collecting tank is driven up and down and rotated in one direction by the moving assembly, so that the water collecting tank drives the water pipe to evenly distribute water while stirring the anaerobic sludge and wastewater; S3. The water collection tank drives the water pipe to move up and down, so that the water pipe is supported by the bottom of the anaerobic tank through the universal wheel, so that the water pipe moves back and forth along the radial direction of the anaerobic tank to increase the uniformity of water distribution; S4. The water collecting tank drives the push plate and the double helical blade to move synchronously, so that the water collecting tank drives the push plate to push the anaerobic sludge and wastewater to move up and down and left and right inside the anaerobic tank to mix.

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