An IC anaerobic tank high-efficiency sludge removal device and method

Abstract

The present application relates to the technical field of tank sludge removal, and in particular to an IC anaerobic tank high-efficiency sludge removal device and method, comprising an anaerobic tank, wherein a stirring rod for stirring sludge is arranged inside the anaerobic tank, a processing frame for conveying sludge into the anaerobic tank is installed on the side wall of the anaerobic tank through a supporting protrusion, and a sludge impurity removal mechanism for removing impurities inside the sludge is arranged on the processing frame; the screening rod cooperates with the telescopic block when rotating, and can effectively wrap and roll up large garbage such as plastic bags in the sludge, thereby preventing the large garbage such as plastic bags from entering the anaerobic tank and wrapping around the stirring rod, reducing the risk of the stirring rod breaking due to excessive resistance, and also avoiding the problem of plastic bags and other garbage wrapping around the stirring rod to cause the discharge hole to be blocked, thereby improving the uniform distribution effect of the reagent solution inside the sludge and improving the anaerobic discharge efficiency of the sludge.

Description

Technical Field

[0001] The present application relates to the technical field of tank sludge removal, and in particular to an IC anaerobic tank high-efficiency sludge removal device and method. Background Art

[0002] In recent years, the sludge treatment industry has been pursuing higher treatment efficiency and striving to reduce treatment costs. Traditional anaerobic digestion methods have problems such as low digestion efficiency, high sludge output, and poor stability, which seriously hinder the further development of the sludge treatment industry.

[0003] IC anaerobic tank, a new type of anaerobic digestion technology that has emerged in recent years, has successfully made up for many shortcomings of traditional anaerobic digestion with its unique structural design and working principle. The IC anaerobic tank's efficient sludge removal technology can degrade organic matter in the sludge. At the same time, part of the water in the sludge can be removed during the anaerobic treatment process to achieve sludge reduction.

[0004] For example, the patent application with publication number CN211078855U provides an anaerobic digestion tank for sludge treatment. The reactant is injected along the S-shaped stirring rod through the addition port on the top of the driving rod, and the additive is accurately guided to the inside of the reaction tank through three levers connected at the bend of the S-shaped stirring rod. The three levers are evenly distributed to ensure that the additive is evenly distributed throughout the reaction tank, thereby promoting a better anaerobic digestion reaction effect. The original S-shaped stirring rod and lever structure achieves accurate and uniform distribution of additives, effectively solving the problem that additives in traditional digestion tanks can only float on the surface, and avoiding the increase in production costs caused by large-scale stirring.

[0005] Although the above patent application crushes large fibers and hair in sludge, the above prior art still has the following defects when anaerobic treatment of sludge is performed: flexible items such as plastic bags cannot be completely crushed, and the crushed plastic bags enter the reaction tank and are entangled on the lever and the stirring rod. The entangled plastic bags increase the resistance between the lever, the stirring rod and the sludge, hindering the normal rotation of the lever and the stirring rod, affecting the full mixing and reaction of the sludge, and reducing the sludge treatment effect.

[0006] In addition, when the crushed plastic bags are wrapped around the lever, they may cause the one-way discharge port at the top of the lever to be blocked, thereby preventing the reactants from entering the sludge, affecting the subsequent anaerobic treatment of the sludge. Summary of the invention

[0007] In order to solve the above technical problems, the present application provides an IC anaerobic tank efficient sludge removal device and method, which adopts the following technical solutions:

[0008] In a first aspect, an IC anaerobic tank high-efficiency sludge removal device comprises an anaerobic tank body, and a stirring rod for stirring sludge is arranged inside the anaerobic tank body, a processing frame for conveying sludge into the anaerobic tank body is installed on the side wall of the anaerobic tank body through a supporting protrusion, and a sludge removal mechanism for removing impurities inside the sludge is arranged on the processing frame.

[0009] The sludge impurity removal mechanism comprises: a plurality of screening rods evenly distributed along the length direction of the processing frame and rotatably arranged above the processing frame.

[0010] The telescopic blocks are evenly arranged on the screening rods and are used to wind up the impurities in the sludge.

[0011] The dredging component is arranged on the processing frame and is used for dredging the sludge on the screening rod.

[0012] Preferably, the interior of the treatment frame is arranged to penetrate along the height direction of the anaerobic tank body, a delivery pump for conveying sludge is arranged at the bottom of the treatment frame, the inlet of the delivery pump is connected to the bottom of the treatment frame, and a delivery pipe is arranged at the outlet of the delivery pump, and the end of the delivery pipe away from the delivery pump passes through the top of the anaerobic tank body and is arranged inside the anaerobic tank body.

[0013] Preferably, a stirring shaft extending along its height direction is rotatably mounted on the bottom of the anaerobic tank body through a bearing, and two groups of stirring rods with hollow structures symmetrically arranged along the length direction of the processing frame are arranged inside the anaerobic tank body. The stirring rods are installed on the stirring shaft and multiple stirring rods are evenly arranged along the length direction of the stirring shaft, and multiple discharge holes that penetrate the interior of the stirring rod are evenly arranged on the stirring rod along the length direction.

[0014] The stirring shaft is provided with a cavity inside, and the stirring rod is connected with the cavity through-through, the top of the anaerobic tank body is also provided with a pressure relief valve, and the bottom of the circumferential surface of the anaerobic tank body is provided with a discharge port.

[0015] Preferably, guide plates are symmetrically mounted on the processing frame along its length direction, and both ends of the screening rod are rotatably mounted on the guide plates.

[0016] Preferably, the dredging assembly comprises: a support frame which is in a T-shaped structure and is symmetrically arranged along the width direction of the processing frame, and a vertical section of the support frame is installed on the processing frame.

[0017] The reciprocating frame is arranged between the two supporting frames, and the two ends of the reciprocating frame are slidably arranged on the horizontal sections of the supporting frames on the corresponding sides.

[0018] A plurality of dredging rods are evenly arranged along the length direction of the reciprocating frame and are arranged on the reciprocating frame, and each dredging rod is arranged between adjacent screening rods.

[0019] Preferably, the end of the reciprocating frame away from the anaerobic tank body passes through the horizontal section of the supporting frame on the corresponding side, and a fixed protrusion is provided on the horizontal section of the supporting frame on the corresponding side, and a bidirectional screw is rotatably mounted on the fixed protrusion through a bearing, and a linkage block is installed at the end of the reciprocating frame away from the anaerobic tank body, and the bidirectional screw is installed on the linkage block by a threaded connection, and the bidirectional screw is transmission-connected to the screening rod closest to it by a belt drive.

[0020] A push rod corresponding to the screening rod is also installed at the bottom of the reciprocating frame.

[0021] Preferably, the dredging rod is rotatably installed on the reciprocating frame, the part of the dredging rod located at the bottom of the reciprocating frame is equipped with a shaking rod, the part of the dredging rod located between adjacent screening rods is provided with a toggle rod, and the guide plates are equipped with cutting knives corresponding to the screening rods.

[0022] Preferably, the screening rod is provided with a make way groove matched with the telescopic block, an elastic telescopic rod is provided inside the make way groove, and the telescopic block is connected to the corresponding elastic telescopic rod.

[0023] Preferably, a rack plate is installed on the horizontal section of any one of the supporting frames, a rotating shaft is installed on the side of the reciprocating frame close to the rack plate through a bearing, a gear meshing with the rack plate is installed on the rotating shaft, a linkage shaft is installed on the top of the dredging rod, and sprockets are installed on the linkage shaft and the rotating shaft.

[0024] In a second aspect, an efficient sludge removal method for an IC anaerobic tank comprises the following steps: S1: sludge delivery, wherein the sludge is delivered onto a screening rod.

[0025] S2: Screening treatment. When the screening rod rotates, it cooperates with the telescopic block to wrap and roll up large garbage such as plastic bags in the sludge. The sludge falls from the gap between the screening rods and enters the bottom of the processing frame.

[0026] S3: Transportation and processing: the sludge after screening and processing inside the processing frame is transported to the inside of the anaerobic tank through a transportation pump.

[0027] S4: Anaerobic reaction, the sludge is treated by anaerobic reaction inside the anaerobic tank.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The screening rod designed in the present invention cooperates with the telescopic block during rotation to wrap and reel up large garbage such as plastic bags in the sludge, thereby preventing large garbage such as plastic bags from entering the anaerobic tank and wrapping around the stirring rod, resulting in a large resistance between the stirring rod and the sludge, causing the stirring rod to break. At the same time, it can prevent large garbage such as plastic bags from wrapping around the stirring rod and causing blockage of the discharge hole, thereby improving the uniform distribution of the reagent solution inside the sludge and improving the anaerobic discharge efficiency of the sludge.

[0030] 2. The dredging assembly designed in the present invention drives the dredging rod to move back and forth during the reciprocating movement of the reciprocating frame between the supporting frames. During the reciprocating movement of the dredging rod, an external force can be applied to the sludge between the screening rods, so that the sludge accumulated on the screening rods can quickly pass through the gaps between the screening rods, avoiding the possibility of sludge accumulation on the screening rods.

[0031] 3. During the reciprocating movement of the reciprocating frame, the large garbage such as plastic bags wrapped around the screening rod can be pushed to both ends of the screening rod through the pushing rod to avoid the accumulation of plastic bags on the screening rod, which will affect the collection effect of plastic bags in the subsequent sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0033] Figure 2 It is a schematic diagram of the three-dimensional installation structure between the stirring rod, the stirring shaft and the anaerobic tank body of the present invention.

[0034] Figure 3 It is a schematic diagram of the three-dimensional installation structure between the processing frame and the dredging components of the present invention.

[0035] Figure 4 The present invention Figure 3 A partial enlarged view of point A in the middle.

[0036] Figure 5 The present invention Figure 3 A partial enlarged view of point B in the middle.

[0037] Figure 6 The present invention Figure 3 A partial enlarged view of point C in the middle.

[0038] Figure 7 It is a schematic diagram of the internal structure of the screening rod of the present invention.

[0039] Figure 8 It is a schematic diagram of the three-dimensional installation structure between the drainage pipe, floating blocks and traction lines of the present invention.

[0040] Fig. 9 It is a schematic diagram of the installation structure between the drainage pipe and the floating block of the present invention.

[0041] Fig.10 The present invention is a flow chart of the IC anaerobic tank efficient sludge removal method.

[0042] Explanation of the reference numerals: 1. anaerobic tank; 11. stirring rod; 111. discharge hole; 12. stirring shaft; 13. pressure relief valve; 2. processing frame; 21. conveying pump; 22. conveying pipe; 221. counterweight block; 222. traction rope; 23. guide plate; 3. sludge impurity removal mechanism; 31. screening rod; 311. bidirectional screw; 312. linkage block; 313. push rod; 314. make way groove; 315. elastic telescopic rod; 316. shaking rod; 317. toggle rod; 318. cutting knife; 32. telescopic block; 33. dredging assembly; 331. supporting frame; 332. reciprocating frame; 333. dredging rod; 334. rack plate; 335. rotating shaft; 336. gear; 337. linkage shaft; 4. drain pipe; 41. floating block; 42. traction line. DETAILED DESCRIPTION

[0043] The following is combined with Figures 1 to 10 This application is described in further detail.

[0044] The embodiment of the present application discloses an IC anaerobic tank efficient sludge removal device and method, which can entangle and collect large garbage such as plastic bags in the sludge, thereby preventing the large garbage such as plastic bags from entering the device and affecting the sludge treatment efficiency.

[0045] Embodiment 1:

[0046] Reference Figure 1 as well as Figure 2 An IC anaerobic tank high-efficiency sludge removal device comprises an anaerobic tank body 1, wherein a stirring rod 11 for stirring sludge is arranged inside the anaerobic tank body 1, a processing frame 2 for conveying sludge into the anaerobic tank body 1 is installed on the side wall of the anaerobic tank body 1 through a supporting protrusion, and a sludge impurity removal mechanism 3 for removing impurities inside the sludge is arranged on the processing frame 2.

[0047] The sludge impurity removal mechanism 3 comprises: a plurality of screening rods 31 evenly distributed along the length direction of the processing frame 2 and rotatably arranged above the processing frame 2 .

[0048] The telescopic blocks 32 are evenly arranged on the screening rods 31 and are used to entangle impurities in the sludge.

[0049] The dredging assembly 33 is arranged on the processing frame 2 and is used to dredge the sludge on the screening rod 31 .

[0050] The screening rods 31 are connected to each other through a sprocket and a chain transmission mode, and any one of the screening rods 31 is driven to rotate by an existing motor. During the rotation of the screening rod 31, the remaining screening rods 31 are driven to rotate through the sprocket and the chain transmission mode. When the screening rod 31 rotates, the telescopic block 32 can enhance the friction between it and large garbage such as plastic bags in the sludge, so that the screening rod 31 and the telescopic block 32 work together to wrap and roll up the large garbage. This can prevent large garbage such as plastic bags from entering the anaerobic tank body 1 and wrapping around the stirring rod 11, thereby avoiding the situation where the stirring rod 11 breaks due to excessive resistance, and at the same time, it can avoid the possibility of large garbage such as plastic bags wrapping around the stirring rod 11 and causing blockage of the discharge hole 111.

[0051] In addition, when the screening rods 31 rotate, they exert an external force on the sludge along their tangential direction, thereby causing the sludge to slide into the processing frame 2, effectively preventing the sludge from accumulating between the screening rods 31, thereby improving the sludge screening efficiency.

[0052] Reference Figure 3 as well as Figure 4 The dredging assembly 33 includes: a support frame 331, which is T-shaped and symmetrically arranged along the width direction of the processing frame 2, and the vertical section of the support frame 331 is installed on the processing frame 2.

[0053] The reciprocating frame 332 is disposed between the two supporting frames 331 , and both ends of the reciprocating frame 332 are slidably disposed on the horizontal sections of the supporting frames 331 on the corresponding sides.

[0054] A plurality of dredging rods 333 are evenly arranged along the length direction of the reciprocating frame 332 and are arranged on the reciprocating frame 332 , and each dredging rod 333 is arranged between adjacent screening rods 31 .

[0055] During specific operation, the reciprocating frame 332 is driven by an external drive to reciprocate between the two supporting frames 331 and along the length direction of the supporting frames 331. When the reciprocating frame 332 moves, it drives the dredging rod 333 to move synchronously. During this process, the dredging rod 333 applies external force to the sludge between the screening rods 31 to prevent the sludge from accumulating between the screening rods 31, thereby effectively improving the sludge screening speed. At the same time, during the movement, the dredging rod 333 can also push impurities such as stones and branches that fall on the screening rods 31 to both ends, ensuring that these impurities will not hinder the sludge from falling smoothly into the processing frame 2, thereby improving the subsequent screening effect of the sludge.

[0056] Replay Figure 3 A guide plate 23 is symmetrically mounted on the processing frame 2 along its length direction, and both ends of the screening rod 31 are rotatably mounted on the guide plate 23 .

[0057] The guide plate 23 is divided into an inclined section and a vertical section, and the inclined section of the guide plate 23 is installed on the processing frame 2, and both ends of the screening rod 31 are installed on the vertical sections of the corresponding side guide plates 23. During specific operation, when the dredging rod 333 moves to the inclined section of the guide plate 23, the sludge leaves the stones and branches. At this time, the sludge adhered to the stones and branches falls on the guide plate 23 and enters the processing frame 2 along the inclined section of the guide plate 23.

[0058] Reference Figure 5 In order to reduce the use of driving the screening rod 31 to rotate, the bidirectional screw 311 provided by the present invention can drive the reciprocating frame 332 to reciprocate synchronously. Specifically, the end of the reciprocating frame 332 away from the anaerobic tank body 1 passes through the horizontal section of the supporting frame 331 on the corresponding side, and a fixed protrusion is provided on the horizontal section of the supporting frame 331 on the corresponding side. The bidirectional screw 311 is rotatably mounted on the fixed protrusion through a bearing. A linkage block 312 is installed at the end of the reciprocating frame 332 away from the anaerobic tank body 1, and the bidirectional screw 311 is installed on the linkage block 312 by a threaded connection. The bidirectional screw 311 and the screening rod 31 closest to it are connected by a belt drive.

[0059] A push rod 313 corresponding to the screening rod 31 is also installed at the bottom of the reciprocating frame 332.

[0060] During specific operation, the bidirectional screw 311 is driven to rotate through the belt transmission method during the rotation of the screening rod 31. During the rotation of the bidirectional screw 311, the reciprocating frame 332 is driven to reciprocate through the cooperation between the linkage block 312 and the bidirectional thread. Then, the bidirectional screw 311 can be driven to rotate through the screening rod 31 and the belt transmission method. Therefore, the cooperation between the bidirectional screw 311 and the linkage block 312 can provide driving force for the reciprocating movement of the reciprocating frame 332 without external drive, thereby reducing the use of external drive and saving energy consumption.

[0061] The reciprocating frame 332 drives the pushing rod 313 to move synchronously during the reciprocating movement. During the movement of the pushing rod 313, impurities such as plastic bags wrapped around the screening rod 31 can be pushed to both ends of the screening rod 31 to avoid the accumulation of plastic bags and the like on the screening rod 31, which affects the subsequent collection effect of plastic bags in the sludge.

[0062] Reference Figure 7 The screening rod 31 is provided with a make way groove 314 matched with the telescopic block 32 , an elastic telescopic rod 315 is provided inside the make way groove 314 , and the telescopic block 32 is connected to the corresponding elastic telescopic rod 315 .

[0063] The telescopic block 32 is symmetrically provided with guiding slopes along the length direction of the screening rod 31, and there is friction between the two sides of the telescopic block 32 perpendicular to the guiding slopes and the give way groove 314, so as to ensure that the telescopic block 32 will not move into the give way groove 314 when it contacts with a plastic bag, etc., to avoid the possibility of relative sliding caused by the telescopic block 32 moving into the give way groove 314, resulting in a small friction between the screening rod 31 and the plastic bag. However, when the plastic bag is subjected to external force, the telescopic block 32 can overcome the friction between it and the give way groove 314 and move into the give way groove 314.

[0064] During specific operation, when the screening rod 31 rotates, it drives the telescopic block 32 to rotate synchronously in a circumferential direction. When a plastic bag in the sludge contacts the telescopic block 32, the friction between the telescopic block 32 and the giveway groove 314 makes it so that the telescopic block 32 will not move into the giveway groove 314 when the plastic bag contacts the telescopic block 32. Therefore, the telescopic block 32 can increase the friction between the screening rod 31 and the plastic bag, that is, the screening rod 31 can wind up the plastic bag in the sludge through the telescopic block 32.

[0065] After the plastic bag is wound, it rotates synchronously with the rotation of the screening rod 31. When the pushing rod 313 moves to the position where the screening rod 31 winds the plastic bag, the pushing rod 313 can push the plastic bag to move synchronously along the screening rod 31. In this process (that is, when the pushing rod 313 pushes the plastic bag), the plastic bag is moved by the external force of the pushing rod 313. At this time, the plastic bag cooperates with the guiding inclined surface to drive the telescopic block 32 to move into the give way groove 314 during the movement. The elastic telescopic rod 315 is compressed at this time, and then the plastic bag can drive the telescopic block 32 to move into the give way groove 314 during the movement. At this time, the plastic bag is no longer blocked by the telescopic block 32 during the movement, that is, the friction between the plastic bag and the screening rod 31 is reduced, so that the plastic bag can move smoothly on the screening rod 31.

[0066] In addition, when the dredging rod 333 moves between the screening rods 31, it can cause the sludge to fall quickly into the processing frame 2, thereby reducing the sludge adhering to the screening rods 31 and preventing it from hindering the movement of the plastic bag on the screening rods 31. When the plastic bag is separated from the telescopic block 32, the elastic telescopic rod 315 drives the telescopic block 32 to reset.

[0067] Reference Figure 5 and Figure 6In order to improve the efficiency of the dredging rod 333 in dredging the sludge between the screening rods 31, the dredging rod 333 designed in the present invention can also realize synchronous rotation while the reciprocating frame 332 moves. The dredging rod 333 is rotatably installed on the reciprocating frame 332. The part of the dredging rod 333 located at the bottom of the reciprocating frame 332 is installed with a shaking rod 316, and the part of the dredging rod 333 located between adjacent screening rods 31 is provided with a toggle rod 317. The guide plate 23 is installed with a cutting knife 318 corresponding to the screening rod 31 one by one.

[0068] During specific operation, the dredging rod 333 is driven to rotate by an external drive, and the dredging rod 333 rotates synchronously during the reciprocating movement. When the dredging rod 333 rotates, it drives the toggle rod 317 to rotate synchronously, providing a rotational external force for the sludge between the screening rods 31, accelerating the sludge from falling, and avoiding the accumulation of sludge on the screening rods 31. During the rotation of the dredging rod 333, the shaking rod 316 is driven to rotate synchronously. During the rotation of the shaking rod 316, the sludge attached to the surface of branches and stones on the screening rod 31 can be shaken off, avoiding the sludge attached to the branches and stones from falling with the branches and stones, causing environmental pollution and waste of sludge raw materials.

[0069] During the movement along the screening rod 31, the plastic bag is cut when passing through the cutting knife 318, so that the entangled plastic bag is cut open, and then during the subsequent pushing process of the pushing rod 313, the cut plastic bag can be transported along the screening rod 31 to the outside of the device, avoiding the possibility of the plastic bag being entangled and accumulated on the screening rod 31.

[0070] Reference Figure 5 In order to reduce the driving force used to drive the dredging rod 333 to rotate, the gear 336 and rack transmission mechanism provided by the present invention can synchronously drive the dredging rod 333 to rotate by means of the movement of the reciprocating frame 332. Specifically, a rack plate 334 is installed on any horizontal section of the supporting frame 331, and a rotating shaft 335 is installed on the side of the reciprocating frame 332 close to the rack plate 334 through a bearing. A gear 336 meshing with the rack plate 334 is installed on the rotating shaft 335, and a linkage shaft 337 is installed on the top of the dredging rod 333, and sprockets are installed on the linkage shaft 337 and the rotating shaft 335.

[0071] A chain is installed on the sprockets. During operation, the reciprocating frame 332 drives the gear 336 to move synchronously through the rotating shaft 335 during the reciprocating movement between the supporting frames 331. During the movement of the gear 336, it engages with the rack plate 334 to drive the rotating shaft 335 to rotate. During the rotation of the rotating shaft 335, the remaining linkage shaft 337 is driven to rotate through the sprocket and chain transmission. During the rotation of the linkage shaft 337, the dredging rod 333 is synchronously driven to rotate, and thus the dredging rod 333 can be driven to rotate adaptively without external drive. The dredging rod 333 can rotate adaptively according to whether the reciprocating frame 332 moves, and has better applicability.

[0072] Reference Figure 2 The interior of the processing frame 2 is arranged to penetrate along the height direction of the anaerobic tank body 1. A delivery pump 21 for conveying sludge is arranged at the bottom of the processing frame 2. The inlet of the delivery pump 21 is connected to the bottom of the processing frame 2. A delivery pipe 22 is arranged at the outlet of the delivery pump 21. The end of the delivery pipe 22 away from the delivery pump 21 passes through the top of the anaerobic tank body 1 and is arranged inside the anaerobic tank body 1.

[0073] Reference Figure 8 A stirring shaft 12 extending along the height direction is rotatably mounted at the bottom of the anaerobic tank body 1 through a bearing. Two groups of stirring rods 11 with hollow structures symmetrically arranged along the length direction of the processing frame 2 are arranged inside the anaerobic tank body 1. The stirring rods 11 are installed on the stirring shaft 12 and multiple stirring rods 11 are evenly arranged along the length direction of the stirring shaft 12. Multiple discharge holes 111 that penetrate the interior of the stirring rod 11 are evenly arranged along the length direction of the stirring rod 11.

[0074] A cavity is arranged inside the stirring shaft 12, and the stirring rod 11 is connected to the cavity through-through. A pressure relief valve 13 is also arranged on the top of the anaerobic tank body 1, and a discharge port is arranged on the bottom of the circumferential surface of the anaerobic tank body 1.

[0075] The discharge port is closed by the existing baffle, and the sieved sludge falls into the processing frame 2, and then is crushed by a crushing roller (not shown). After the sludge is crushed, the delivery pump 21 is started, and the sludge is delivered to the anaerobic tank body 1 through the delivery pipe 22. When the sludge is delivered, the external drive causes the stirring shaft 12 to swing back and forth, and the stirring rod 11 is used to achieve uniform distribution of the sludge in the anaerobic tank body 1, thereby avoiding the possibility of the sludge falling into the anaerobic tank body 1 accumulating at a certain place in the anaerobic tank body 1, thereby preventing the gas doping problem that may be caused by the concentrated pouring of the sludge, and improving the oxygen-free degree of the sludge during anaerobic treatment.

[0076] The stirring rod 11 will not collide with the conveying pipe 22 during the reciprocating swing process. When the sludge is added, the stirring shaft 12 is driven to rotate by the existing drive. During the rotation of the stirring shaft 12, the stirring rod 11 is driven to stir the sludge so that the bubbles inside the sludge can be removed. During the anaerobic treatment of the sludge, reagents need to be added to the sludge to accelerate the treatment efficiency of the sludge. At this time, the reagent is dissolved in water to obtain a reagent solution, and then the reagent solution is poured into the cavity. The reagent solution passes through the cavity and the hollow structure of the stirring rod 11 and then enters the sludge through the discharge hole 111. Then, through the above steps, the reagent solution can be evenly distributed in the sludge, ensuring that the reagent and the sludge are evenly mixed, thereby accelerating the treatment efficiency of the sludge.

[0077] After the sludge is added, the gas inside the anaerobic tank 1 is evacuated.

[0078] The gas generated by the reaction overflows to the outside of the anaerobic tank body 1 through the pressure relief valve 13 to ensure a constant pressure inside the anaerobic tank body 1 and avoid explosion inside the anaerobic tank body 1 due to excessive pressure. In addition, the discharge hole 111 has unidirectional fluidity (that is, the material inside the stirring rod 11 can flow out through the discharge hole 111, but the sludge cannot enter the stirring rod 11 through the discharge hole 111). When the sludge anaerobic treatment is completed, the baffle is opened to take out the sludge after the anaerobically treated sludge through the discharge port.

[0079] Example 2: Reference Figure 8 as well as Fig. 9 On the basis of the first embodiment, in order to reduce the impact force when the sludge falls from the conveying pipe 22 and avoid the sludge from colliding with the bottom of the anaerobic tank body 1 to produce gas, the conveying pipe 22 designed in the present invention is designed to be retractable at one end located inside the anaerobic tank body 1. Specifically, the end of the conveying pipe 22 located inside the anaerobic tank body 1 is configured as a retractable structure, and a counterweight block 221 is provided at one end of the conveying pipe 22 located inside the anaerobic tank body 1, and a traction rope 222 is installed on the counterweight block 221, and the end of the traction rope 222 away from the counterweight block 221 passes through the top of the anaerobic tank body 1.

[0080] The traction rope 222 is long enough. At the starting position, the telescopic end of the conveying pipe 22 is in a contracted state and the traction rope 222 is fixed. During operation, when the sludge is conveyed to the inside of the anaerobic tank body 1 through the conveying pipe 22, the traction rope 222 is loosened, and the telescopic end of the conveying pipe 22 is driven downward by the counterweight 221. At this time, the sludge is conveyed to the inside of the anaerobic tank body 1 through the conveying pipe 22. As the height of the sludge inside the anaerobic tank body 1 increases, the traction rope 222 is pulled through the counterweight 221 to drive the telescopic end of the conveying pipe 22 to move upward synchronously. In this way, the collision force of the sludge when it falls can be reduced, so as to avoid excessive impact force when the sludge falls, which is easy to collide with the sludge at the bottom of the anaerobic tank body 1 to produce bubbles. The bubbles may cause air to enter the inside of the anaerobic tank body 1, affecting the anaerobic treatment effect of the sludge.

[0081] Since water droplets will be produced on the sludge surface after the sludge reacts for a period of time, an appropriate amount of water can improve the efficiency of the sludge anaerobic reaction, but excessive water will cause the sludge anaerobic reaction rate to decrease. Therefore, after the sludge reacts for a period of time, the water inside the anaerobic tank body 1 needs to be cleaned. Specifically, a drain pipe 4 is provided through the top of the anaerobic tank body 1, and the end of the drain pipe 4 located inside the anaerobic tank body 1 is also configured as a telescopic structure. A floating block 41 is provided at one end of the drain pipe 4 located inside the anaerobic tank body 1, and a traction line 42 is installed on the floating block 41, and the end of the traction line 42 away from the floating block 41 passes through the top of the anaerobic tank body 1.

[0082] The existing water pump is connected to the end of the drain pipe 4 away from the anaerobic tank body 1, and the traction line 42 is long enough. At the starting position, the telescopic end of the drain pipe 4 is in a contracted state, and the traction line 42 is fixed. During operation, after the anaerobic reaction of the sludge continues for a period of time, the traction line 42 is released, and the telescopic end of the drain pipe 4 moves downward, driving the floating block 41 to float on the water layer on the surface of the sludge. Subsequently, the water pump is started to extract water from the surface of the sludge through the drain pipe 4 to prevent excessive moisture inside the anaerobic tank body 1 from affecting the rate of the anaerobic reaction of the sludge.

[0083] There is a certain height difference between the bottom end of the telescopic end of the drain pipe 4 and the bottom of the floating block 41. Therefore, during the drainage process, the floating block 41 first contacts the sludge. At this time, the telescopic end of the drain pipe 4 has not yet contacted the sludge. At this time, there is still a certain height of water on the surface of the sludge. Therefore, when the existing water pump and the drain pipe 4 cooperate to extract water, the water on the surface of the sludge will not be completely extracted. A certain amount of water needs to be retained for anaerobic reaction.

[0084] Finally, see Fig.10 The present invention also provides an IC anaerobic tank efficient sludge removal method, comprising the following steps: S1: sludge delivery, the sludge is delivered onto the screening rod 31.

[0085] S2: Screening treatment. During the rotation of the screening rod 31, the telescopic block 32 can increase the friction between the screening rod 31 and large garbage such as plastic bags in the sludge, so that the screening rod 31 and the telescopic block 32 cooperate with each other to wrap and roll up large garbage such as plastic bags in the sludge, and the sludge falls from the gap between the screening rods 31 and enters the bottom of the processing frame 2.

[0086] After the plastic bag is wound, it rotates synchronously with the rotation of the screening rod 31. When the pushing rod 313 moves to the position where the screening rod 31 winds the plastic bag, the pushing rod 313 can push the plastic bag to move synchronously along the screening rod 31. During this process (that is, when the pushing rod 313 pushes the plastic bag), the plastic bag is moved by the external force of the pushing rod 313. During the movement of the plastic bag along the screening rod 31, it is cut when passing through the cutting knife 318, so that the wound plastic bag is cut, and then during the subsequent pushing process of the pushing rod 313, the cut plastic bag can be transported to the outside of the device along the screening rod 31, thereby avoiding the possibility of the plastic bag being wound and accumulated on the screening rod 31.

[0087] S3: Transportation treatment: during the start-up of the transportation pump 21, sludge is delivered to the anaerobic tank body 1 through the transportation pipe 22. During the sludge transportation process, the stirring shaft 12 is driven to swing back and forth by an external drive. During the reciprocating swing of the stirring shaft 12, the sludge falling into the anaerobic tank body 1 can be evenly distributed through the stirring rod 11.

[0088] S4: Anaerobic reaction: the sludge is subjected to anaerobic reaction treatment inside the anaerobic tank 1 .

[0089] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0090] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An IC anaerobic tank high-efficiency sludge removal device, comprising an anaerobic tank body (1), wherein a stirring rod (11) is arranged inside the anaerobic tank body (1) for stirring the sludge, characterized in that: A processing frame (2) for conveying sludge into the interior of the anaerobic tank body (1) is installed on the side wall of the anaerobic tank body (1) via a supporting protrusion, and a sludge removal mechanism (3) for removing impurities in the sludge is provided on the processing frame (2), wherein: The sludge removal mechanism (3) includes: A plurality of screening rods (31) are evenly distributed along the length direction of the processing frame (2) and are rotatably arranged above the processing frame (2); Telescopic blocks (32) are evenly arranged on the screening rod (31) and are used to wind up impurities in the sludge; A dredging assembly (33) is arranged on the processing frame (2) and is used to dredge the sludge on the screening rod (31); The dredging assembly (33) comprises: a support frame (331) having a T-shaped structure and symmetrically arranged along the width direction of the processing frame (2), and a vertical section of the support frame (331) is installed on the processing frame (2); A reciprocating frame (332) is arranged between the two supporting frames (331), and both ends of the reciprocating frame (332) are slidably arranged on the horizontal sections of the supporting frames (331) on the corresponding sides; A plurality of dredging rods (333) are evenly arranged along the length direction of the reciprocating frame (332) and are arranged on the reciprocating frame (332), and each dredging rod (333) is arranged between adjacent screening rods (31); A push rod (313) corresponding to the screening rod (31) is also installed at the bottom of the reciprocating frame (332); The processing frame (2) is symmetrically mounted with guide plates (23) along its length direction, and both ends of the screening rod (31) are rotatably mounted on the guide plates (23); The dredging rod (333) is rotatably mounted on the reciprocating frame (332), a shaking rod (316) is mounted on the portion of the dredging rod (333) located at the bottom of the reciprocating frame (332), a toggle rod (317) is mounted on the portion of the dredging rod (333) located between adjacent screening rods (31), and cutting knives (318) corresponding to the screening rods (31) are mounted on the guide plates (23); The screening rod (31) is provided with a clearance groove (314) matched with the telescopic block (32), an elastic telescopic rod (315) is provided inside the clearance groove (314), and the telescopic block (32) is connected to the corresponding elastic telescopic rod (315).

2. According to claim 1, an IC anaerobic tank high-efficiency sludge removal device is characterized by: The interior of the treatment frame (2) is arranged to penetrate along the height direction of the anaerobic tank body (1); a delivery pump (21) for conveying sludge is arranged at the bottom of the treatment frame (2); the inlet of the delivery pump (21) is connected to the bottom of the treatment frame (2); a delivery pipe (22) is arranged at the outlet of the delivery pump (21); an end of the delivery pipe (22) away from the delivery pump (21) passes through the top of the anaerobic tank body (1) and is arranged inside the anaerobic tank body (1).

3. The IC anaerobic tank high-efficiency sludge removal device according to claim 1 is characterized by: The bottom of the anaerobic tank body (1) is rotatably mounted with a stirring shaft (12) extending in the height direction thereof via a bearing. Two groups of stirring rods (11) symmetrically arranged along the length direction of the processing frame (2) and having a hollow structure are arranged inside the anaerobic tank body (1). The stirring rods (11) are mounted on the stirring shaft (12) and a plurality of stirring rods (11) are evenly arranged along the length direction of the stirring shaft (12). The stirring rods (11) are evenly arranged along the length direction of the stirring shaft (12) and a plurality of discharge holes (111) penetrating the inside thereof are evenly arranged. A cavity is arranged inside the stirring shaft (12), and the stirring rod (11) is connected to the cavity through and through. A pressure relief valve (13) is also arranged on the top of the anaerobic tank body (1), and a discharge port is arranged at the bottom of the circumferential surface of the anaerobic tank body (1).

4. The IC anaerobic tank high-efficiency sludge removal device according to claim 1 is characterized by: The end of the reciprocating frame (332) away from the anaerobic tank body (1) penetrates the horizontal section of the supporting frame (331) on the corresponding side, and a fixed protrusion is provided on the horizontal section of the supporting frame (331) on the corresponding side. A bidirectional screw (311) is rotatably mounted on the fixed protrusion via a bearing. A linkage block (312) is installed on the end of the reciprocating frame (332) away from the anaerobic tank body (1), and the bidirectional screw (311) is mounted on the linkage block (312) by means of a threaded connection. The bidirectional screw (311) is transmission-connected to the screening rod (31) closest to the bidirectional screw (311) by means of a belt transmission.

5. The IC anaerobic tank high-efficiency sludge removal device according to claim 1 is characterized by: A rack plate (334) is installed on the horizontal section of any one of the support frames (331); a rotating shaft (335) is installed on the side of the reciprocating frame (332) close to the rack plate (334) through a bearing; a gear (336) meshing with the rack plate (334) is installed on the rotating shaft (335); a linkage shaft (337) is installed on the top of the dredging rod (333); and sprockets are installed on the linkage shaft (337) and the rotating shaft (335).

6. An IC anaerobic tank efficient sludge removal method, comprising an IC anaerobic tank efficient sludge removal device as claimed in any one of claims 1 to 5, characterized in that: The method of use includes the following steps: S1: Sludge delivery, delivering the sludge onto the screening rod (31); S2: screening treatment, when the screening rod (31) rotates, it cooperates with the telescopic block (32) to wrap and roll up the plastic bag in the sludge, and the sludge falls from the gap between the screening rods (31) and enters the bottom of the processing frame (2); S3: transporting and processing, transporting the sludge after screening and processing in the processing frame (2) to the inside of the anaerobic tank (1) through a transport pump (21); S4: Anaerobic reaction, the sludge is subjected to anaerobic reaction treatment inside the anaerobic tank (1).

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