Papermaking wastewater circulating treatment device for tea filter paper

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a papermaking wastewater circulating treatment device for tea filter paper. Comprising a stirring tank, the stirring tank is fixedly connected with a circulation pipe, the circulation pipe is fixedly connected with the circulation shell, a circulation pump machine is installed in the circulation shell, the circulation shell is slidably connected with a filter block, the filter block is provided with a circulation filter screen, the filter block is slidably connected with a cleaning block, and the filter block is rotatably connected with a one-way baffle. A transfer pipe is fixedly connected to the upper side of the circulating shell, a reversing shaft is rotationally connected into the transfer pipe, and the transfer pipe is fixedly connected and communicated with an anaerobic jar. Papermaking wastewater is circulated through the circulating pump machine, meanwhile, the papermaking wastewater is filtered through the circulating filter screen, when flocculates are too many at the circulating filter screen, the flocculates accumulated on the circulating filter screen are cleaned through the cleaning block, more flocculates are promoted to be gathered into large agglomerates easy to collect, and the separation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly relates to a circulating treatment device for papermaking wastewater of tea filter paper. Background Art

[0002] Tea filter paper is a kind of packaging specially used for bagged tea. In the process of preparing filter paper, a large amount of wastewater will be generated from raw materials such as wood pulp and bamboo pulp through steps such as soaking, grinding, and bleaching. These wastewaters contain organic substances and chemicals such as cellulose, lignin, and pulp chemicals. Before discharging, the wastewater needs to be treated by a wastewater treatment device until the wastewater reaches the discharge standard before it can be discharged into the external environment to reduce pollution to the external environment. In the process of treatment by the existing wastewater treatment device, usually, a flocculant is used to clean impurities such as suspended substances and colors in the wastewater. After the flocculant is added to the existing wastewater treatment device, the flocs will be dispersed in the wastewater, and the flocs will be broken up after stirring, resulting in a reduction in the volume of the dispersed flocs, making it difficult to collect and separate them. When filtering and separating, the flocs with a smaller volume are difficult to retain, and multiple separation treatments are required to complete the separation. If waiting for the flocs to settle and agglomerate, it will lead to too long waiting settlement time and low separation efficiency. Summary of the Invention

[0003] In order to overcome the disadvantages that the time for waiting for the flocs to settle and agglomerate is very long and the dispersed flocs are difficult to collect and separate, a circulating treatment device for papermaking wastewater of tea filter paper is provided.

[0004] The technical solution is: A circulating treatment device for papermaking wastewater of tea filter paper includes a stirring tank. The stirring tank is provided with a feed port. The stirring tank is fixedly connected and communicated with a circulation pipe. The circulation pipe is fixedly connected and communicated with a circulation shell. A circulation pump is installed in the circulation shell. A filter block is slidably connected in the circulation shell. An elastic member is arranged between the filter block and the circulation shell. A circulation filter screen is arranged in the filter block. A cleaning block is slidably connected in the filter block. A one-way baffle is rotatably connected to the filter block. An elastic member is arranged between the one-way baffle and the filter block. The filter block is provided with a waste port that is plugged and matched with the one-way baffle. The upper side of the circulation shell is fixedly connected and communicated with a transfer pipe. A reversing shaft is rotatably connected in the transfer pipe. The reversing shaft is plugged and matched with the transfer pipe. The transfer pipe is fixedly connected and communicated with the stirring tank. The side of the transfer pipe away from the stirring tank is fixedly connected and communicated with an anaerobic tank. The anaerobic tank is provided with a discharge port. A power component for driving the cleaning block to move is arranged in the circulation shell. A stirring component for stirring the wastewater is arranged in the stirring tank. A speed-changing component for adjusting the stirring speed is arranged on the stirring tank.

[0005] Further, the power assembly includes a transmission frustum which is rotatably connected to the filter block and slidably connected to the circulation housing. A power frustum is fixedly connected to the power shaft of the circulation pump. The transmission frustum is in transmission cooperation with the power frustum on the power shaft of the circulation pump. On the side of the filter block away from the one-way baffle, pulley wheels distributed in mirror image are rotatably connected. A belt is wound around the pulley wheels distributed in mirror image, and a reciprocating slider is fixedly connected to the belt. A limiting groove is provided on the cleaning block, and the reciprocating slider is in limiting sliding connection with the limiting groove on the cleaning block. A first hydraulic telescopic rod is fixedly connected in the circulation housing, and the telescopic end of the first hydraulic telescopic rod is in contact and cooperation with the filter block.

[0006] Further, the stirring assembly includes a synchronous telescopic rod which is fixedly connected in the stirring tank. Uniformly distributed stirring rods are fixedly connected to both the fixed part and the telescopic part of the synchronous telescopic rod. The telescopic end of the synchronous telescopic rod is rotatably connected to a synchronous rod, and a floating ring is fixedly connected to the synchronous rod. The stirring tank is rotatably connected to a first spline shaft, and the first spline shaft is slidably connected to the synchronous telescopic rod.

[0007] Further, the speed change assembly includes a bracket which is fixedly connected to the stirring tank. A second hydraulic telescopic rod is fixedly connected to the bracket. An elastic member is arranged inside the second hydraulic telescopic rod. The second hydraulic telescopic rod is communicated with the first hydraulic telescopic rod. The telescopic end of the second hydraulic telescopic rod is fixedly connected to a transmission wheel which is slidably connected to the first spline shaft. A first motor is installed on the bracket, and a cone pulley is fixedly connected to the output shaft of the first motor. The cone pulley is in contact and cooperation with the transmission wheel. A buffer pipe is arranged at the communication part between the second hydraulic telescopic rod and the first hydraulic telescopic rod. A ball valve is arranged inside the buffer pipe, and a buffer hole is arranged inside the buffer pipe. The buffer hole inside the buffer pipe is elliptical.

[0008] Further, it also includes a negative pressure component, which is arranged inside the anaerobic tank. The negative pressure component is used for performing negative pressure treatment on the wastewater. The negative pressure component includes an electric telescopic rod, and the electric telescopic rod is fixedly connected to the upper side of the anaerobic tank. A negative pressure chamber is arranged inside the anaerobic tank, and a reaction chamber is arranged inside the anaerobic tank. The negative pressure chamber of the anaerobic tank is communicated with the reaction chamber. The telescopic end of the electric telescopic rod is fixedly connected with a first sealing ring, and the first sealing ring is slidably connected with the negative pressure chamber of the anaerobic tank. A uniformly distributed sealing rod is slidably connected inside the first sealing ring. An elastic member is arranged between the sealing rod and the first sealing ring. A floating ball is fixedly connected to the lower side of the sealing rod. Uniformly distributed ventilation holes are arranged on the first sealing ring. Uniformly distributed sealing blocks are slidably connected to the first sealing ring. An elastic member is arranged between the sealing block and the first sealing ring. The sealing block is in sealing cooperation with the adjacent ventilation hole on the first sealing ring, and the sealing block is in pressing cooperation with the adjacent sealing rod.

[0009] Further, a second sealing ring is slidably connected to the telescopic part of the electric telescopic rod, and the second sealing ring is slidably connected with the negative pressure chamber of the anaerobic tank. Uniformly and mirror-image distributed communication holes are arranged inside the first sealing ring. The sealing rod is in sealing cooperation with the adjacent communication hole of the first sealing ring. A telescopic pipe is arranged in the communication hole of the first sealing ring, and the telescopic pipe in the communication hole of the first sealing ring is fixedly connected to and penetrates through the second sealing ring.

[0010] Further, a spring wedge block is slidably connected to the anaerobic tank. An inclined surface is arranged on the spring wedge block, and the inclined surface of the spring wedge block gradually moves away from the second sealing ring from top to bottom. The inclined surface of the spring wedge block is in pressing cooperation with the second sealing ring. An air release hole is arranged on the anaerobic tank, and the air release hole of the anaerobic tank is in sealing cooperation with the spring wedge block. The distance from the upper side of the air release hole of the anaerobic tank to the lower side of the inclined surface of the spring wedge block is greater than or equal to the thickness of the second sealing ring. The distance from the lower side of the air release hole of the anaerobic tank to the upper side of the inclined surface of the spring wedge block is less than the sum of the thicknesses of the first sealing ring and the second sealing ring.

[0011] Further, it further includes a collection component, which is arranged inside the anaerobic tank. The collection component is used to collect the sludge precipitated from the wastewater. The collection component includes a second motor, which is fixedly connected to the anaerobic tank. The output shaft of the second motor is fixedly connected to a second spline shaft, and the second spline shaft is rotatably connected to the anaerobic tank. A synchronous sliding frame is slidably connected to the second spline shaft, and a spring sliding plate is slidably connected to the synchronous sliding frame. A friction block is fixedly connected to the side of the spring sliding plate away from the second spline shaft, and the friction block is in contact and cooperation with the anaerobic tank. On the side of the spring sliding plate away from the second spline shaft, there are symmetrically distributed limit posts centered, and in the reaction chamber of the anaerobic tank, there are symmetrically distributed limit grooves centered. The limit posts of the spring sliding plate are in limit sliding cooperation with the adjacent limit grooves of the anaerobic tank. The spring sliding plate is slidably connected to symmetrically distributed sector plates, and barrier films are provided on both the sector plates and the spring sliding plate.

[0012] Further, the spring sliding plate is composed of symmetrically distributed sector-shaped filter frames, and the sector angles of the sector-shaped filter frames of the sector plates and the spring sliding plate are both 90°.

[0013] Further, the synchronous sliding frame is fixedly connected with uniformly distributed wedge-shaped stoppers, and the wedge-shaped stoppers are in limit contact and cooperation with the adjacent sector plates.

[0014] The beneficial effects of the present invention: The present invention circulates the papermaking wastewater through a circulation pump, and at the same time, the circulation filter screen filters the papermaking wastewater. When there is too much flocculant at the circulation filter screen, the cleaning block is used to clean the flocculant accumulated on the circulation filter screen, promoting more flocculants to aggregate into larger and easily collectable lumps, increasing the separation efficiency; Driven by the negative pressure of the circulation filter screen, the filter block moves, and then the speed change component adjusts the rotation speed of the first spline shaft, avoiding the flocculants in the papermaking wastewater being scattered due to the too fast rotation speed of the stirring rod when there are more flocculants in the papermaking wastewater, reducing the filtration efficiency; A negative pressure environment is formed by the cooperation of the first sealing ring and the second sealing ring with the anaerobic tank, reducing the oxygen content in the papermaking wastewater and increasing the reaction efficiency of the papermaking wastewater during subsequent anaerobic treatment; The sludge attached to the reaction chamber of the anaerobic tank is isolated and scraped off by the symmetrically distributed sector plates and spring sliding plates centered, so that all the sludge in the reaction chamber of the anaerobic tank is collected under the sector plates and the spring sliding plates, facilitating the subsequent cleaning and removal of the sludge. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a three-dimensional structural sectional view of the present invention; Figure 3 This is a three-dimensional structural sectional view of the mixing tank and the circulation housing of the present invention; Figure 4 This is a three-dimensional structural sectional view of the circulation housing of the present invention; Figure 5 This is a three-dimensional structural sectional view of the power assembly of the present invention; Figure 6 This is a three-dimensional structural sectional view of the filter block of the present invention; Figure 7 This is a three-dimensional structural sectional view of the mixing tank of the present invention; Figure 8 This is a three-dimensional structural sectional view of the mixing assembly of the present invention; Figure 9 This is a three-dimensional structural sectional view of the speed change assembly of the present invention; Figure 10 This is a three-dimensional structural sectional view of the anaerobic tank of the present invention; Figure 11 For the present invention Figure 10 The three-dimensional structural sectional view at position A in; Figure 12 This is a three-dimensional structural sectional view of the first sealing ring and the second sealing ring of the present invention; Figure 13 This is a three-dimensional structural sectional view of the first sealing ring and the sealing rod of the present invention; Figure 14 This is a three-dimensional structural sectional view of the collection assembly of the present invention; Figure 15 This is an exploded three-dimensional view of the collection assembly of the present invention.

[0016] Reference numerals in the drawings: 1: mixing tank, 2: circulation pipe, 301: circulation housing, 302: circulation pump, 303: filter block, 304: circulation filter screen, 305: cleaning block, 306: one-way baffle, 31: power assembly, 307: transmission frustum, 308: belt pulley, 309: reciprocating slider, 310: first hydraulic telescopic rod, 4: transfer pipe, 401: reversing shaft, 5: anaerobic tank, 501: spring wedge block, 6: mixing assembly, 601: synchronous telescopic rod, 602: mixing rod, 603: synchronous rod, 604: floating ring, 605: first spline shaft, 7: speed change assembly, 701: bracket, 702: second hydraulic telescopic rod, 703: transmission wheel, 704: first motor, 705: cone pulley, 706: ball valve, 8: negative pressure assembly, 801: electric telescopic rod, 802: first sealing ring, 803: sealing rod, 804: floating ball, 805: sealing block, 806: second sealing ring, 9: collection assembly, 901: second motor, 902: second spline shaft, 903: synchronous sliding frame, 904: spring sliding plate, 9041: friction block, 905: sector plate, 906: wedge-shaped stop block. Detailed implementation manners

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Example 1, a circulating treatment device for papermaking wastewater of tea filter paper. Please refer to Figures 1-6 , including a stirring tank 1, with an external control module. The stirring tank 1 is provided with a feed port for adding papermaking wastewater. A circulation pipe 2 is fixedly connected to the stirring tank 1, and the circulation pipe 2 is used for circulating suction of the papermaking wastewater. The circulation pipe 2 communicates with the stirring tank 1. A circulation shell 301 is fixedly connected to the upper side of the circulation pipe 2, and the circulation pipe 2 communicates with the circulation shell 301. A circulation pump 302 is installed in the circulation shell 301. The circulation pump 302 is electrically connected to the control module and is used to make the papermaking wastewater flow in a cycle. A filter block 303 is slidably connected in the circulation shell 301. An elastic member is provided between the filter block 303 and the circulation shell 301, and this elastic member is a spring. A circulation filter screen 304 is arranged in the filter block 303, and the circulation filter screen 304 is used for separating the papermaking wastewater and flocculants. A cleaning block 305 is slidably connected in the filter block 303, and the cleaning block 305 is used to clean the flocculants accumulated on the lower side of the circulation filter screen 304. A one-way baffle 306 is rotatably connected to the filter block 303. The one-way baffle 306 is used to prevent the papermaking wastewater in the filter block 303 from leaking out and at the same time facilitates the discharge of flocculants. An elastic member is provided between the one-way baffle 306 and the filter block 303, and this elastic member is a torsion spring. The filter block 303 is provided with a waste port that cooperates with the one-way baffle 306 for plugging, and the waste port is used to discharge the separated flocculants. A transfer pipe 4 is fixedly connected and communicated to the upper side of the circulation shell 301. A reversing shaft 401 is rotatably connected in the transfer pipe 4. An L-shaped flow channel is arranged in the reversing shaft 401, and the L-shaped flow channel of the reversing shaft 401 is used to adjust the flow direction of the papermaking wastewater. The reversing shaft 401 cooperates with the transfer pipe 4 for plugging. The transfer pipe 4 is fixedly connected and communicated with the stirring tank 1. An anaerobic tank 5 is fixedly connected and communicated to the right side of the transfer pipe 4. The anaerobic tank 5 is used for anaerobic treatment of the papermaking wastewater to settle the organic matter in the papermaking wastewater and increase the cleanliness of the treated papermaking wastewater. The anaerobic tank 5 is provided with a discharge port for discharging the treated papermaking wastewater. A power assembly 31 for driving the cleaning block 305 to move is arranged in the circulation shell 301. A stirring assembly 6 for stirring the wastewater is arranged in the stirring tank 1. A speed-changing assembly 7 for adjusting the stirring speed is arranged on the stirring tank 1. The circulating filter screen 304 is used to separate the wastewater flocculants from the sucked and circulated papermaking wastewater, avoiding direct separation in the stirring tank 1, which may cause the flocculants to disperse in the stirring tank 1, promoting more flocculants to aggregate into larger and easily collectable lumps at the circulation filter screen 304, thereby increasing the separation efficiency.

[0019] Please refer to Figure 5 and Figure 6, the power assembly 31 includes a transmission frustum 307 which is used to drive the cleaning block 305 to move by means of the power of the power shaft of the circulating pump 302. The transmission frustum 307 is rotatably connected to the filter block 303 and is slidably connected to the circulating housing 301. A power frustum is fixedly connected to the power shaft of the circulating pump 302, and the transmission frustum 307 is in transmission cooperation with the power frustum of the power shaft of the circulating pump 302. Pulley 308s distributed in mirror image are rotatably connected to the rear side of the filter block 303. A belt is wound around the pulley 308s distributed in mirror image, and a reciprocating slider 309 is fixedly connected to the belt. A limiting groove is provided on the cleaning block 305, and the reciprocating slider 309 is in limiting sliding connection with the limiting groove on the cleaning block 305. The reciprocating slider 309 is driven by the belt to move back and forth, thereby driving the cleaning block 305 to move back and forth, so that the cleaning block 305 pushes the flocculants accumulated at the circulating filter net 304 forward for cleaning. A first hydraulic telescopic rod 310 is fixedly connected to the circulating housing 301, and the telescopic end of the first hydraulic telescopic rod 310 is in contact and cooperation with the filter block 303.

[0020] As Figure 7 and Figure 8 shown, the stirring assembly 6 includes a synchronous telescopic rod 601. The telescopic lengths of the telescopic parts of each stage of the synchronous telescopic rod 601 are the same, and it is used to drive the adjacent stirring rods 602 to move and stretch simultaneously. The synchronous telescopic rod 601 is fixedly connected to the stirring tank 1, and uniformly distributed stirring rods 602 are fixedly connected to both the fixed part and the telescopic part of the synchronous telescopic rod 601. The stirring rods 602 are used to stir the papermaking wastewater in the stirring tank 1 to accelerate the full reaction between the flocculant and the papermaking wastewater. The telescopic end of the synchronous telescopic rod 601 is rotatably connected to a synchronous rod 603, and a floating ring 604 is fixedly connected to the synchronous rod 603. The floating ring 604 is used to drive the synchronous telescopic rod 601 to stretch. By driving the floating ring 604, the stirring rods 602 on the synchronous telescopic rod 601 move, so that the uniformly distributed stirring rods 602 are evenly distributed within the water level height of the papermaking wastewater, increasing the stirring efficiency of the stirring rods 602 for the papermaking wastewater. The stirring tank 1 is rotatably connected to a first spline shaft 605, and the first spline shaft 605 is slidably connected to the synchronous telescopic rod 601.

[0021] Please refer to Figure 7 and Figure 9, the speed change assembly 7 includes a bracket 701, the bracket 701 is fixedly connected to the upper side of the stirring tank 1, the bracket 701 is fixedly connected with a second hydraulic telescopic rod 702, an elastic member is arranged inside the second hydraulic telescopic rod 702, the elastic member is a spring, the second hydraulic telescopic rod 702 is communicated with the first hydraulic telescopic rod 310, the telescopic end of the second hydraulic telescopic rod 702 is fixedly connected with a transmission wheel 703 for driving the first spline shaft 605 to rotate, and further driving the uniformly distributed stirring rods 602 to rotate. The transmission wheel 703 is slidably connected with the first spline shaft 605. The bracket 701 is provided with a first motor 704, the first motor 704 is electrically connected to the control module, the output shaft of the first motor 704 is fixedly connected with a conical wheel 705, the cross-section of the conical wheel 705 is a trapezoid with a gradually decreasing diameter from top to bottom, the conical wheel 705 is in contact and cooperation with the transmission wheel 703. A buffer pipe is arranged at the communication place between the second hydraulic telescopic rod 702 and the first hydraulic telescopic rod 310. The buffer pipe is used for adjusting the flow rate of the hydraulic oil between the second hydraulic telescopic rod 702 and the first hydraulic telescopic rod 310. A ball valve 706 is arranged inside the buffer pipe. The ball valve 706 is used for restricting the flow rate of the hydraulic oil flowing from the second hydraulic telescopic rod 702 to the first hydraulic telescopic rod 310. Buffer holes are arranged inside the buffer pipe, the buffer holes inside the buffer pipe are elliptical, the length of the short axis of the ellipse of the buffer holes is smaller than the diameter of the ball valve 706. Through the cooperation of the buffer holes and the ball valve 706 of the buffer pipe, the flow rate of the hydraulic oil flowing from the first hydraulic telescopic rod 310 to the second hydraulic telescopic rod 702 remains unchanged, and the flow rate of the hydraulic oil flowing from the second hydraulic telescopic rod 702 to the first hydraulic telescopic rod 310 is slowed down, thereby slowing down the recovery of the rotation speed of the stirring rods 602, preventing the flocs in the papermaking wastewater from being dispersed by the stirring rods 602, and reducing the filtration efficiency.

[0022] When the user uses this device to treat the papermaking wastewater of tea filter paper, the user first adds the papermaking wastewater into the stirring tank 1 through the feed port of the stirring tank 1. The floating ring 604 moves upward under the buoyancy of the papermaking wastewater and remains at the water level position of the papermaking wastewater. The floating ring 604 drives the telescopic end of the synchronous telescopic rod 601 to move upward, the synchronous telescopic rod 601 unfolds evenly upward, the telescopic part of the synchronous telescopic rod 601 drives the uniformly distributed stirring rods 602 to move upward and unfold until the water level of the added papermaking wastewater approaches and is lower than the lower side of the transfer pipe 4. The floating ring 604 remains at the water level of the papermaking wastewater, so that the uniformly distributed stirring rods 602 are adaptively unfolded evenly according to the amount of the papermaking wastewater, increasing the uniformity of the papermaking wastewater during stirring.

[0023] After adding papermaking wastewater into the stirring tank 1, the user controls the start of the first motor 704 through the control module. The output shaft of the first motor 704 drives the cone pulley 705 to rotate. The cone pulley 705 drives the transmission pulley 703 to rotate through friction. The transmission pulley 703 drives the first spline shaft 605 to rotate through spline connection. The first spline shaft 605 drives the synchronous telescopic rod 601 to rotate. The synchronous telescopic rod 601 drives the uniformly distributed stirring rods 602 to rotate, so that the uniformly distributed stirring rods 602 evenly stir the papermaking wastewater. At this time, the user adds a flocculant into the papermaking wastewater in the stirring tank 1 to remove impurities such as suspended solids and color in the papermaking wastewater. The uniformly distributed stirring rods 602 rotate to evenly disperse the added flocculant in the papermaking wastewater, ensuring that the flocculant fully contacts and agglomerates with the suspended solids in the papermaking wastewater, accelerating the flocculation process and improving the flocculation efficiency.

[0024] After adding the flocculant to the papermaking wastewater, in the initial state, the reversing shaft 401 cooperates with the transfer pipe 4 to block the connection between the transfer pipe 4 and the anaerobic tank 5, and the transfer pipe 4 is connected to the stirring tank 1. The user controls the start of the circulating pump 302 through the control module. The circulating pump 302 sucks the papermaking wastewater in the stirring tank 1 through the circulation pipe 2, enters the transfer pipe 4 upward after passing through the circulation shell 301, and the transfer pipe 4 re-adds the papermaking wastewater into the stirring tank 1 to complete a cycle.

[0025] When the papermaking wastewater is circulating, when the flocculants and the papermaking wastewater in the papermaking wastewater pass through the circulation shell 301, the circulation filter screen 304 filters and blocks the flocculants in the papermaking wastewater on the lower side of the circulation filter screen 304 to realize the separation of the flocculants and the wastewater in the papermaking wastewater. As the reaction between the papermaking wastewater and the flocculant proceeds, the flocculants in the papermaking wastewater gradually increase. At this time, the flocculants filtered and blocked at the circulation filter screen 304 increase, causing the circulation filter screen 304 to be blocked by the flocculants. Since the circulation efficiency of the circulating pump 302 remains unchanged, a negative pressure is formed between the circulating pump 302 and the circulation filter screen 304, which in turn causes the circulation filter screen 304 to drive the filter block 303 to move upward. The spring of the filter block 303 is compressed and stores energy. The filter block 303 drives the transmission frustum 307 to move upward. The filter block 303 drives the telescopic end of the first hydraulic telescopic rod 310 to move upward.

[0026] When the filtering block 303 drives the transmission frustum 307 to move upward to the limit position, the transmission frustum 307 meshes with the power frustum of the circulating pump 302. The circulating pump 302 drives the power frustum to rotate through the power shaft. The power frustum drives the transmission frustum 307 to rotate. The transmission frustum 307 drives the adjacent pulley 308 to rotate. The pulley 308 drives the belt wound thereon to move. The belt drives the reciprocating slider 309 to move forward. The reciprocating slider 309 drives the cleaning block 305 to move forward through the limiting groove on the cleaning block 305. The cleaning block 305 moves forward to push the flocculants accumulated on the lower side of the circulating filter net 304 forward until the cleaning block 305 contacts the one-way baffle 306 and pushes it forward. The one-way baffle 306 swings counterclockwise forward (taking Figure 2 the left view as the standard), and the torsion spring of the one-way baffle 306 stores energy, so that the one-way baffle 306 releases the blockage of the waste outlet of the filtering block 303, and then the cleaning block 305 pushes the accumulated flocculants out of the waste outlet of the filtering block 303.

[0027] When the filtering block 303 drives the telescopic end of the first hydraulic telescopic rod 310 to move upward, the hydraulic oil in the first hydraulic telescopic rod 310 flows through the buffer pipe into the second hydraulic telescopic rod 702. When the hydraulic oil flows through the buffer pipe, the hydraulic oil pushes the ball valve 706 downward. The increase of the hydraulic oil in the second hydraulic telescopic rod 702 causes its telescopic end to extend downward. The spring in the second hydraulic telescopic rod 702 is compressed and stores energy. The telescopic end of the second hydraulic telescopic rod 702 drives the transmission wheel 703 to move downward, so that the transmission ratio between the transmission wheel 703 and the cone wheel 705 decreases. When the filtering block 303 moves upward to the limit position, the transmission wheel 703 moves downward to release the transmission cooperation with the cone wheel 705, so that the transmission wheel 703 stops rotating. The transmission wheel 703 drives the first spline shaft 605 to stop rotating. The first spline shaft 605 drives the uniformly distributed stirring rods 602 to stop rotating through the synchronous telescopic rod 601, so that the flocculants in the papermaking wastewater are concentrated and settled, avoiding the flocculants in the papermaking wastewater from being scattered by the stirring rods 602 and reducing the filtering efficiency.

[0028] After the cleaning block 305 moves forward to push out the flocculants, the belt drives the reciprocating slider 309 to move backward. The reciprocating slider 309 drives the cleaning block 305 to move backward through the limiting groove. When the cleaning block 305 moves backward to return to the initial position, the cleaning block 305 releases the contact with the one-way baffle 306. The one-way baffle 306 swings clockwise and resets under the action of the torsion spring (taking Figure 2Based on the left view), the blockage of the waste outlet of the filtering block 303 is restored, the blockage of the flocculants on the circulating filter screen 304 is removed, the negative pressure between the circulating filter screen 304 and the circulating pump 302 is removed, the filtering block 303 moves downward and resets under the action of the spring, the filtering block 303 drives the transmission frustum 307 to move downward, the transmission frustum 307 disengages from the power frustum of the circulating pump 302, thereby causing the cleaning block 305 to stop moving at the initial position and restoring the filtration of the circulating filter screen 304.

[0029] After the filtering block 303 returns to its initial position, the contact between the filtering block 303 and the telescopic end of the first hydraulic telescopic rod 310 is removed. The second hydraulic telescopic rod 702 makes its telescopic end reset upward under the action of the spring. The hydraulic oil in the second hydraulic telescopic rod 702 flows through the buffer pipe into the first hydraulic telescopic rod 310. When the hydraulic oil flows in the buffer pipe, the ball valve 706 blocks the buffer holes of the buffer pipe, so that only a part of the buffer holes are exposed. The flow rate of the hydraulic oil from the buffer pipe slows down, thereby causing the telescopic end of the second hydraulic telescopic rod 702 to slowly retract and reset upward. The telescopic end of the second hydraulic telescopic rod 702 drives the transmission wheel 703 to move upward and reset, thereby causing the stirring speed of the uniformly distributed stirring rods 602 to slowly recover, avoiding the sudden increase in the stirring speed, so that the flocculants in the papermaking wastewater are suddenly accelerated and dispersed. The increase in the hydraulic oil in the first hydraulic telescopic rod 310 causes its telescopic end to extend downward until the telescopic end of the first hydraulic telescopic rod 310 returns to its initial position and contacts the filtering block 303.

[0030] By repeating the cycle of the above steps, the papermaking wastewater and the flocculants are separated until all the flocculants in the papermaking wastewater are removed. Then, the user rotates the reversing shaft 401 counterclockwise (based on Figure 2 the front view), the reversing shaft 401 cooperates with the transfer pipe 4 to connect the transfer pipe 4 with the anaerobic tank 5, and the connection between the transfer pipe 4 and the stirring tank 1 is blocked. At this time, the circulating pump 302 sucks the papermaking wastewater in the stirring tank 1 through the circulation pipe 2, enters the transfer pipe 4 upward after passing through the circulation shell 301, and the transfer pipe 4 adds the papermaking wastewater into the reaction chamber of the anaerobic tank 5.

[0031] After all the papermaking wastewater is added into the reaction chamber of the anaerobic tank 5, the user rotates the reversing shaft 401 clockwise to block the connection between the transfer pipe 4 and the anaerobic tank 5. Then, the control module controls the circulating pump 302 and the first motor 704 to stop. The anaerobic tank 5 gradually converts the organic substances difficult to filter in the papermaking wastewater into sludge through anaerobic treatment. The converted sludge settles to the lower side in the anaerobic tank 5. After the papermaking wastewater undergoes anaerobic treatment and settles for the required time, the user opens the discharge port of the anaerobic tank 5 to discharge the papermaking wastewater in the anaerobic tank 5. After the papermaking wastewater is discharged, the user cleans all the settled substances in the anaerobic tank 5, thus completing the treatment of the papermaking wastewater.

[0032] Example 2, based on Example 1: Please refer to Figure 10 , Figure 12 and Figure 13 , and further includes a negative pressure assembly 8. The negative pressure assembly 8 is arranged in the anaerobic tank 5 and is used for performing negative pressure treatment on the wastewater. The negative pressure assembly 8 includes an electric telescopic rod 801. The electric telescopic rod 801 is electrically connected to the control module. The electric telescopic rod 801 is fixedly connected to the upper side of the anaerobic tank 5. A negative pressure chamber is arranged in the anaerobic tank 5. The negative pressure chamber of the anaerobic tank 5 is communicated with the transfer pipe 4. The transfer pipe 4 is communicated with the lower side of the negative pressure chamber of the anaerobic tank 5. The negative pressure chamber is used for performing negative pressure treatment on the papermaking wastewater to reduce the oxygen content therein. A reaction chamber is arranged in the anaerobic tank 5 and is used for enabling anaerobic reactions of organic impurities and the like in the papermaking wastewater. The negative pressure chamber of the anaerobic tank 5 is communicated with the reaction chamber. The telescopic end of the electric telescopic rod 801 is fixedly connected with a first sealing ring 802. The first sealing ring 802 is slidably connected with the negative pressure chamber of the anaerobic tank 5. A uniformly distributed sealing rod 803 is slidably connected in the first sealing ring 802. The sealing rod 803 is used to prevent air from directly entering the reaction chamber of the anaerobic tank 5 after the papermaking wastewater is added. An elastic member is arranged between the sealing rod 803 and the first sealing ring 802. The elastic member is a spring. A floating ball 804 is fixedly connected to the lower side of the sealing rod 803. The floating ball 804 is used to trigger the movement of the sealing rod 803 according to the water level of the papermaking wastewater. Uniformly distributed vent holes are arranged on the first sealing ring 802. The vent holes of the first sealing ring 802 are used to separate the air after the papermaking wastewater is added. Uniformly distributed sealing blocks 805 are slidably connected to the first sealing ring 802. An elastic member is arranged between the sealing block 805 and the first sealing ring 802. The elastic member is a spring. The sealing block 805 is used to block the adjacent vent holes of the first sealing ring 802 to separate and seal the papermaking wastewater and air. The sealing block 805 cooperates with the adjacent vent holes on the first sealing ring 802 for sealing, and the sealing block 805 is in extrusion cooperation with the adjacent sealing rod 803. A second sealing ring 806 is slidably connected to the telescopic part of the electric telescopic rod 801. The second sealing ring 806 is used to separate the papermaking wastewater and air. The air is isolated between the second sealing ring 806 and the first sealing ring 802 through the vent holes of the first sealing ring 802. The second sealing ring 806 is slidably connected with the negative pressure chamber of the anaerobic tank 5. Uniform and mirror-image distributed Z-shaped communication holes are arranged in the first sealing ring 802. The communication holes of the first sealing ring 802 are used to isolate the papermaking wastewater that needs to undergo anaerobic reaction to the upper side of the second sealing ring 806, and then the papermaking wastewater flows to the reaction chamber of the anaerobic tank 5. The sealing rod 803 cooperates with the adjacent communication holes of the first sealing ring 802 for sealing. A telescopic pipe is arranged in the communication holes of the first sealing ring 802. The telescopic pipe of the communication holes of the first sealing ring 802 is fixedly connected with and penetrates through the second sealing ring 806.

[0033] Please refer to Figure 11, the anaerobic tank 5 is slidably connected with a spring wedge block 501 for cooperating with the air vent of the anaerobic tank 5. The spring wedge block 501 is provided with an inclined surface, and the inclined surface of the spring wedge block 501 gradually moves away from the second sealing ring 806 from top to bottom. The inclined surface of the spring wedge block 501 is in extrusion cooperation with the second sealing ring 806. The anaerobic tank 5 is provided with an air vent, and the air vent of the anaerobic tank 5 is in sealing cooperation with the spring wedge block 501. By driving the spring wedge block 501 to move through the second sealing ring 806, the air between the second sealing ring 806 and the first sealing ring 802 is discharged through the air vent of the anaerobic tank 5. The distance from the upper side of the air vent of the anaerobic tank 5 to the lower side of the inclined surface of the spring wedge block 501 is greater than or equal to the thickness of the second sealing ring 806, and the distance from the lower side of the air vent of the anaerobic tank 5 to the upper side of the inclined surface of the spring wedge block 501 is less than the sum of the thicknesses of the first sealing ring 802 and the second sealing ring 806, which is used to prevent the papermaking wastewater below the first sealing ring 802 in the anaerobic tank 5 from flowing out through the air vent of the anaerobic tank 5.

[0034] Please refer to Figure 10 , Figure 14 and Figure 15, further comprising a collection component 9 disposed in the anaerobic tank 5. The collection component 9 is used to collect the sludge precipitated from the wastewater. The collection component 9 includes a second motor 901 electrically connected to the control module. The second motor 901 is fixedly connected to the anaerobic tank 5. The output shaft of the second motor 901 is fixedly connected to a second spline shaft 902. The second spline shaft 902 is used to drive the spring slide plate 904 and the sector plate 905 to rotate simultaneously. The second spline shaft 902 is rotatably connected to the anaerobic tank 5. A synchronous sliding frame 903 is spline-connected to the second spline shaft 902. The synchronous sliding frame 903 is slidably connected to the spring slide plate 904. The spring of the spring slide plate 904 is located between its upper side and the synchronous sliding frame 903. The spring slide plate 904 is composed of sector-shaped filter frames symmetrically distributed about the center. A friction block 9041 is fixedly connected to the side of the spring slide plate 904 away from the second spline shaft 902. The friction block 9041 is in contact and cooperation with the anaerobic tank 5, and is used to make the spring slide plate 904 move later than the sector plate 905. The sliding angle between the sector plate 905 and the spring slide plate 904 is 90°. On the side of the spring slide plate 904 away from the second spline shaft 902, there are symmetrically distributed limit posts about the center. In the reaction chamber of the anaerobic tank 5, there are symmetrically distributed limit grooves about the center, which are used to make the spring slide plate 904 and the sector plate 905 move downward simultaneously, so as to scrape and isolate the sludge on the inner wall of the anaerobic tank 5 by the spring slide plate 904 and the sector plate 905. The limit posts of the spring slide plate 904 are in limit sliding cooperation with the adjacent limit grooves of the anaerobic tank 5. The spring slide plate 904 is slidably connected to symmetrically distributed sector plates 905. The sector angles of the sector-shaped filter frames of the sector plates 905 and the spring slide plate 904 are both 90°. Barrier films are provided on both the sector plates 905 and the spring slide plate 904, which are used to separate the papermaking wastewater and the settled sludge. The synchronous sliding frame 903 is fixedly connected with uniformly distributed wedge-shaped stoppers 906. The wedge-shaped stoppers 906 are in limit contact and cooperation with the adjacent sector plates 905. By driving the synchronous sliding frame 903 to rotate through the second spline shaft 902 until the sector plate 905 and the spring slide plate 904 are misaligned and combined into a complete circle to cover the anaerobic tank 5, it is avoided that the sludge under the sector plate 905 and the spring slide plate 904 moves upward. Subsequently, the sector plate 905 and the spring slide plate 904 separate the sludge, which is convenient for subsequent cleaning.

[0035] When the transfer pipe 4 adds the papermaking wastewater into the anaerobic tank 5, the papermaking wastewater first enters the lower side of the negative pressure chamber in the anaerobic tank 5. At this time, the user controls the telescopic end of the electric telescopic rod 801 to retract upward through the control module, and the telescopic end of the electric telescopic rod 801 drives the first sealing ring 802 to move upward. After a certain amount of papermaking wastewater is added into the negative pressure chamber of the anaerobic tank 5, the lower side surface of the first sealing ring 802 contacts the horizontal surface of the papermaking wastewater. At this time, the telescopic end of the electric telescopic rod 801 continues to drive the first sealing ring 802 and the second sealing ring 806 to move upward until the first sealing ring 802 moves upward to the limit position, and the distance between the lower side surface of the first sealing ring 802 and the horizontal surface of the papermaking wastewater increases, thereby making the papermaking wastewater in the negative pressure chamber of the anaerobic tank 5 in a negative pressure environment, and the oxygen content in the papermaking wastewater is reduced under the action of negative pressure, thereby increasing the reaction efficiency of the papermaking wastewater during subsequent anaerobic treatment.

[0036] After the papermaking wastewater in the negative pressure chamber of the anaerobic tank 5 is negatively pressure treated, the user controls the telescopic end of the electric telescopic rod 801 to extend downward through the control module, and the telescopic end of the electric telescopic rod 801 drives the first sealing ring 802 and the second sealing ring 806 to move downward, and the vent hole of the first sealing ring 802 is not blocked by the blocking block 805, so that the gas in the negative pressure chamber of the anaerobic tank 5 flows upward to the space between the first sealing ring 802 and the second sealing ring 806 through the vent holes evenly distributed in the first sealing ring 802, and the air between the first sealing ring 802 and the second sealing ring 806 increases, so that the second sealing ring 806 moves upward relative to the first sealing ring 802 under the action of air pressure until the first sealing ring 802 and the anaerobic tank are blocked. The papermaking wastewater contacts the negative pressure chamber of the tank 5, and the evenly distributed floats 804 on the first sealing ring 802 move upward under the action of buoyancy, and the float 804 drives the adjacent sealing rod 803 to move upward. The spring of the sealing rod 803 is squeezed and stored, and the sealing rod 803 contacts the adjacent sealing block 805 and pushes it to the side close to the second spline shaft 902, until the float 804 drives the sealing rod 803 to move upward until the sealing rod 803 releases the blockage of the adjacent connecting hole on the first sealing ring 802. At this time, the sealing block 805 cooperates with the sealing of the adjacent vents of the first sealing ring 802. At this point, the air in the negative pressure chamber of the anaerobic tank 5 is retained between the first sealing ring 802 and the second sealing ring 806.

[0037] When the floating ball 804 drives the adjacent plugging rod 803 to move upward to the limit position, the plugging rod 803 releases the plugging of the communication hole adjacent to the first plugging ring 802. The telescopic end of the electric telescopic rod 801 drives the first plugging ring 802 to continue moving downward. The papermaking wastewater below the first plugging ring 802 flows upward through the communication hole of the first plugging ring 802 to the upper side of the second plugging ring 806 until the first plugging ring 802 moves downward to the limit position, so that all the papermaking wastewater in the negative pressure chamber of the anaerobic tank 5 flows to the upper side of the second plugging ring 806. At this time, the user controls the telescopic end of the electric telescopic rod 801 to retract upward through the control module. The telescopic end of the electric telescopic rod 801 drives the first plugging ring 802 to move upward. At this time, the floating ball 804 is disengaged from the contact with the papermaking wastewater, so that the plugging rod 803 moves downward under the action of the spring, and the plugging rod 803 resumes the plugging of the adjacent communication hole on the first plugging ring 802 to prevent the papermaking wastewater on the upper side of the second plugging ring 806 from flowing back. The first plugging ring 802 drives the second plugging ring 806 to move upward through the air pressure on its upper side. The second plugging ring 806 squeezes the papermaking wastewater on its upper side to flow upward into the reaction chamber of the anaerobic tank 5 until all the papermaking wastewater in the negative pressure chamber of the anaerobic tank 5 enters the reaction chamber. By repeating the above steps, until all the papermaking wastewater in the mixing tank 1 enters the anaerobic tank 5.

[0038] After the second plugging ring 806 moves upward to squeeze the papermaking wastewater into the reaction chamber of the anaerobic tank 5, the second plugging ring 806 contacts the inclined surface of the spring wedge block 501 and pushes it to the right. The spring wedge block 501 moves to the right to release the plugging of the air vent of the anaerobic tank 5, so that the negative pressure chamber between the second plugging ring 806 and the first plugging ring 802 communicates with the outside. The first plugging ring 802 continues to move upward, so that the air between the first plugging ring 802 and the second plugging ring 806 is discharged to the outside through the air vent of the anaerobic tank 5 until the second plugging ring 806 contacts the first plugging ring 802. Thus, the air in the negative pressure chamber of the anaerobic tank 5 is discharged. After the air in the negative pressure chamber of the anaerobic tank 5 is discharged, the user controls the telescopic end of the electric telescopic rod 801 to move downward through the control module. The telescopic end of the electric telescopic rod 801 drives the first plugging ring 802 and the second plugging ring 806 to return to the initial position.

[0039] After the papermaking wastewater in the reaction chamber of the anaerobic tank 5 is anaerobically treated to the required degree, the user controls the second motor 901 to start through the control module, the output shaft of the second motor 901 drives the second spline shaft 902 to rotate, the second spline shaft 902 drives the synchronous sliding frame 903 to rotate, the synchronous sliding frame 903 drives the uniformly distributed wedge-shaped blocks 906 to rotate, the wedge-shaped blocks 906 drive the adjacent sector plates 905 to rotate through contact and cooperation, the spring slide plate 904 remains stable under the action of the friction block 9041 until the wedge-shaped blocks 906 drive the adjacent sector plates 905 to rotate 90°, so that the sector plates 905 and the sector-shaped filter frames of the spring slide plate 904, which are symmetrically distributed in the center, rotate and merge into a full circle of 360°, covering the reaction chamber of the anaerobic tank 5.

[0040] After the reaction chamber of the anaerobic tank 5 is covered, the second spline shaft 902 continues to drive the synchronous sliding frame 903 to rotate, and the synchronous sliding frame 903 drives the adjacent sector plate 905 to rotate through the wedge-shaped stopper 906. After the sector plate 905 rotates to the limit position of 90°, it drives the spring slide plate 904 to rotate. The spring slide plate 904 is limited and slidably matched with the limit column and the limit groove of the anaerobic tank 5, so that the spring slide plate 904 moves downward, and the spring slide plate 904 drives the synchronous sliding frame 903 to move downward, thereby making the central The whole circle formed by the fan-shaped filter frame of the symmetrically distributed fan-shaped plate 905 and the spring slide plate 904 rotates and moves downward, and the sludge attached to the inner wall of the reaction chamber of the anaerobic tank 5 is hung and dropped. At the same time, the barrier film on the fan-shaped plate 905 isolates the sludge hanging on the lower side to prevent the sludge on the lower side from moving upward, until the spring slide plate 904 drives the synchronous slide frame 903 to move downward to the limit position, and the fan-shaped plate 905 distributed symmetrically on the center contacts with the sludge and is pushed upward by it, and the fan-shaped plate 905 drives the spring slide plate 904 to move upward. The slide plate 904 moves upward, causing the wedge-shaped stopper 906 to release the limiting contact with the adjacent sector plate 905, thereby causing the sector plate 905 and the spring slide plate 904 to stop moving downward and rotating. The spring of the spring slide plate 904 is squeezed and force is accumulated, and the spring of the spring slide plate 904 drives the synchronous slide frame 903 to move upward. The synchronous slide frame 903 drives the evenly distributed wedge-shaped stopper 906 to move upward, and the wedge-shaped stopper 906 resumes the limiting contact with the adjacent sector plate 905, thereby causing the sector plate 905 and the spring slide plate to stop moving downward and rotating. 904 resumes to move downward and rotate, so as to realize multiple squeezing of the sludge on the lower side by the fan-shaped plate 905 and the spring slide plate 904, and all the sludge in the reaction chamber of the anaerobic tank 5 is isolated on the lower side of the spring slide plate 904 and the fan-shaped plate 905 symmetrically distributed at the center, so as to realize the collection of the sludge in the reaction chamber of the anaerobic tank 5, and facilitate the subsequent treatment of the sludge. After the sludge in the reaction chamber of the anaerobic tank 5 is collected, the user opens the discharge port of the anaerobic tank 5 to discharge the wastewater after anaerobically treated in the reaction chamber of the anaerobic tank 5.

[0041] After the wastewater in the reaction chamber of the anaerobic tank 5 is discharged, the user controls the second motor 901 to reverse through the control module. The output shaft of the second motor 901 drives the second spline shaft 902 to reverse. The second spline shaft 902 drives the synchronous sliding frame 903 to reverse. The synchronous sliding frame 903 drives the adjacent sector plate 905 to rotate in the reverse direction through the wedge-shaped stopper 906. After the sector plate 905 rotates 90° in the reverse direction and returns to its initial position, the sector plate 905 drives the spring sliding plate 904 to reverse. The spring sliding plate 904 moves upward and resets through the sliding fit between the limit post and the limit groove in the reaction chamber of the anaerobic tank 5 until the spring sliding plate 904 returns to its initial position. At this time, the user clears the sludge accumulated at the bottom of the reaction chamber in the anaerobic tank 5 out of the anaerobic tank 5. After the sludge in the anaerobic tank 5 is cleared, the user closes the discharge port of the anaerobic tank 5, thus completing the anaerobic treatment of the papermaking wastewater.

[0042] The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A papermaking wastewater circulation treatment device for tea filter paper, comprising a stirring tank (1), wherein the stirring tank (1) is provided with a feed inlet, and the stirring tank (1) is fixedly connected to and communicated with a flow pipe (2), characterized in that: The circulation housing (301) further comprises a circulation shell (301) fixedly connected to and in communication with the circulation pipe (2), a circulation pump (302) being installed in the circulation shell (301), a filter block (303) being slidably connected in the circulation shell (301), an elastic member being arranged between the filter block (303) and the circulation shell (301), a circulation filter screen (304) being arranged in the filter block (303), a cleaning block (305) being slidably connected in the filter block (303), a one-way baffle (306) being rotatably connected in the filter block (303), an elastic member being arranged between the one-way baffle (306) and the filter block (303), and a waste gas filter (305) being arranged in the filter block (303) for sealing with the one-way baffle (306). The upper side of the circulation shell (301) is fixedly connected to and communicated with a transfer pipe (4), a reversing shaft (401) is rotatably connected inside the transfer pipe (4), the reversing shaft (401) and the transfer pipe (4) are sealed and matched, the transfer pipe (4) is fixedly connected to and communicated with the stirring tank (1), the side of the transfer pipe (4) away from the stirring tank (1) is fixedly connected to and communicated with an anaerobic tank (5), the anaerobic tank (5) is provided with a discharge port, a power component (31) for driving the cleaning block (305) to move is provided inside the circulation shell (301), a stirring component (6) for stirring wastewater is provided inside the stirring tank (1), and a speed change component (7) for adjusting the stirring speed is provided on the stirring tank (1).

2. The papermaking wastewater circulation treatment device for tea filter paper according to claim 1 is characterized in that: The power assembly (31) comprises a transmission cone (307), the transmission cone (307) is rotatably connected to the filter block (303), the transmission cone (307) is slidably connected to the circulation shell (301), the power shaft of the circulation pump (302) is fixedly connected to the power cone, the transmission cone (307) is in transmission cooperation with the power cone of the power shaft of the circulation pump (302), and the filter block (303) is rotatably connected to the side away from the one-way baffle (306). A mirror-distributed pulley (308) is connected, a belt is wound around the mirror-distributed pulley (308), a reciprocating slider (309) is fixedly connected to the belt, a limiting groove is provided on the cleaning block (305), the reciprocating slider (309) is limitedly slidably connected to the limiting groove on the cleaning block (305), a first hydraulic telescopic rod (310) is fixedly connected in the circulation shell (301), and the telescopic end of the first hydraulic telescopic rod (310) is in contact with the filter block (303).

3. The papermaking wastewater circulation treatment device for tea filter paper according to claim 2 is characterized in that: The stirring assembly (6) comprises a synchronous telescopic rod (601), the synchronous telescopic rod (601) is fixedly connected in the stirring tank (1), the fixed portion and the telescopic portion of the synchronous telescopic rod (601) are both fixedly connected to stirring rods (602) distributed evenly, the telescopic end of the synchronous telescopic rod (601) is rotatably connected to a synchronous rod (603), the synchronous rod (603) is fixedly connected to a floating ring (604), the stirring tank (1) is rotatably connected to a first spline shaft (605), and the first spline shaft (605) is slidably connected to the synchronous telescopic rod (601).

4. The papermaking wastewater circulation treatment device for tea filter paper according to claim 3 is characterized in that: The speed change assembly (7) comprises a bracket (701), the bracket (701) being fixedly connected to the mixing tank (1), the bracket (701) being fixedly connected to a second hydraulic telescopic rod (702), an elastic member being arranged inside the second hydraulic telescopic rod (702), the second hydraulic telescopic rod (702) being connected to the first hydraulic telescopic rod (310), a transmission wheel (703) being fixedly connected to the telescopic end of the second hydraulic telescopic rod (702), the transmission wheel (703) being slidably connected to the first spline shaft (605), the bracket (701) being installed with a first motor (704), the output shaft of the first motor (704) being fixedly connected to a cone wheel (705), the cone wheel (705) being in contact with and cooperating with the transmission wheel (703), a buffer tube being arranged at a connection point between the second hydraulic telescopic rod (702) and the first hydraulic telescopic rod (310), a ball valve (706) being arranged inside the buffer tube, a buffer hole being arranged inside the buffer tube, and the buffer hole in the buffer tube being elliptical.

5. The papermaking wastewater circulation treatment device for tea filter paper according to claim 1 is characterized in that: The anaerobic tank (5) further comprises a negative pressure component (8), the negative pressure component (8) being arranged in the anaerobic tank (5), the negative pressure component (8) being used for negative pressure treatment of wastewater, the negative pressure component (8) comprising an electric telescopic rod (801), the electric telescopic rod (801) being fixedly connected to the upper side of the anaerobic tank (5), the anaerobic tank (5) being provided with a negative pressure chamber, the anaerobic tank (5) being provided with a reaction chamber, the negative pressure chamber of the anaerobic tank (5) being connected to the reaction chamber, the telescopic end of the electric telescopic rod (801) being fixedly connected to a first blocking ring (802), the first blocking ring (802) being slidably connected to the negative pressure chamber of the anaerobic tank (5), the first blocking ring (802) The first sealing ring (802) is provided with uniformly distributed sealing rods (803) which are slidably connected thereto, an elastic member is provided between the sealing rods (803) and the first sealing ring (802), a floating ball (804) is fixedly connected to the lower side of the sealing rod (803), the first sealing ring (802) is provided with uniformly distributed ventilation holes, the first sealing ring (802) is slidably connected thereto with uniformly distributed sealing blocks (805), an elastic member is provided between the sealing blocks (805) and the first sealing ring (802), the sealing blocks (805) are in sealing cooperation with adjacent ventilation holes on the first sealing ring (802), and the sealing blocks (805) are in extrusion cooperation with adjacent sealing rods (803).

6. The papermaking wastewater circulation treatment device for tea filter paper according to claim 5, characterized in that: The telescopic portion of the electric telescopic rod (801) is slidably connected to a second sealing ring (806), the second sealing ring (806) is slidably connected to the negative pressure chamber of the anaerobic tank (5), the first sealing ring (802) is provided with evenly and mirror-distributed communicating holes, the sealing rod (803) cooperates with the communicating holes adjacent to the first sealing ring (802) to seal, the communicating holes of the first sealing ring (802) are provided with telescopic tubes, the telescopic tubes of the communicating holes of the first sealing ring (802) are fixedly connected to and penetrate the second sealing ring (806).

7. The papermaking wastewater circulation treatment device for tea filter paper according to claim 6 is characterized in that: The anaerobic tank (5) is slidably connected to a spring wedge block (501), the spring wedge block (501) being provided with an inclined surface, the inclined surface of the spring wedge block (501) gradually moving away from the second blocking ring (806) from top to bottom, the inclined surface of the spring wedge block (501) being pressed and matched with the second blocking ring (806), the anaerobic tank (5) being provided with an air release hole, the air release hole of the anaerobic tank (5) being blocked and matched with the spring wedge block (501), the distance from the upper side of the air release hole of the anaerobic tank (5) to the lower side of the inclined surface of the spring wedge block (501) being greater than or equal to the thickness of the second blocking ring (806), and the distance from the lower side of the air release hole of the anaerobic tank (5) to the upper side of the inclined surface of the spring wedge block (501) being less than the sum of the thicknesses of the first blocking ring (802) and the second blocking ring (806).

8. The papermaking wastewater circulation treatment device for tea filter paper according to claim 7 is characterized in that: The anaerobic tank (5) further comprises a collecting assembly (9), the collecting assembly (9) being arranged in the anaerobic tank (5), the collecting assembly (9) being used for collecting sludge precipitated from the wastewater, the collecting assembly (9) comprising a second motor (901), the second motor (901) being fixedly connected to the anaerobic tank (5), the output shaft of the second motor (901) being fixedly connected to a second spline shaft (902), the second spline shaft (902) being rotatably connected to the anaerobic tank (5), a synchronous sliding frame (903) being slidably connected to the second spline shaft (902), the synchronous sliding frame (903) being slidably connected to a spring sliding plate (904), the spring sliding plate (904) A friction block (9041) is fixedly connected to the side away from the second spline shaft (902), and the friction block (9041) is in contact with the anaerobic tank (5). A side of the spring slide plate (904) away from the second spline shaft (902) is provided with centrally symmetrically distributed limiting columns. The reaction chamber of the anaerobic tank (5) is provided with centrally symmetrically distributed limiting grooves. The limiting columns of the spring slide plate (904) are in position-limiting sliding cooperation with the limiting grooves adjacent to the anaerobic tank (5). The spring slide plate (904) is slidably connected with a centrally symmetrically distributed fan-shaped plate (905), and both the fan-shaped plate (905) and the spring slide plate (904) are provided with barrier films.

9. The papermaking wastewater circulation treatment device for tea filter paper according to claim 8, characterized in that: The spring slide plate (904) is composed of fan-shaped filter frames that are centrally symmetrically distributed, and the fan-shaped angles of the fan-shaped plate (905) and the fan-shaped filter frames of the spring slide plate (904) are both 90°.

10. The papermaking wastewater circulation treatment device for tea filter paper according to claim 9, characterized in that: The synchronous sliding frame (903) is fixedly connected with evenly distributed wedge-shaped stoppers (906), and the wedge-shaped stoppers (906) are in position-limiting contact with the adjacent sector plates (905).

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