Papermaking pulp recovery equipment for biogas residue papermaking

Abstract

The utility model relates to the technical field of biogas residue papermaking, in particular to papermaking pulp recovery equipment for biogas residue papermaking, which can integrate the design of precipitation, fishing and papermaking of waste papermaking pulp and solid-liquid separation, simplify the operation process and facilitate the cleaning of a filter device. Comprising a treatment box, four supporting legs, a partition plate, a fishing device, an aeration device, an extrusion device and a filtering device, the four supporting legs are installed on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the treatment box correspondingly, the partition plate is installed in the middle of the interior of the treatment box and divides the treatment box into a left cavity and a right cavity, and the fishing device is installed on the left side of the top end of the treatment box; the fishing device corresponds to the left cavity of the treatment box in position, the aeration device is installed on the left side of the bottom end in the treatment box and located in the left cavity of the treatment box, the extrusion device is installed in the right cavity of the treatment box, and the filtering device is located on the right side of the treatment box and communicated with the right end of the treatment box.

Description

Technical Field

[0001] The utility model relates to the technical field of biogas residue papermaking, in particular to a papermaking pulp recovery device for biogas residue papermaking. Background Art

[0002] Biogas residue papermaking is a technology that uses biogas residue produced after the treatment of agricultural waste or biomass waste as raw material to make paper through a specific process. This method aims to recycle resources, reduce environmental pollution, and open up new sources of papermaking raw materials.

[0003] Waste papermaking pulp is produced when biogas residue is used for papermaking, so the waste papermaking pulp needs to be recycled and reused. However, the existing waste papermaking pulp needs to be precipitated to remove larger impurities, and then the wastewater is introduced into a separation device for solid-liquid separation to recover the lost fibers.

[0004] However, the existing operating procedures are complicated, and the screen is prone to clogging, which affects its working efficiency and service life. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a papermaking pulp recovery device for sludge papermaking, which can integrate the sedimentation and salvage of waste papermaking pulp and the solid-liquid separation design into one, simplifying its operation process and facilitating the cleaning of the filter device.

[0006] The utility model discloses a papermaking pulp recovery device for biogas residue papermaking, comprising a processing box, four groups of legs, a partition, a salvaging device, an aeration device, an extrusion device and a filtering device, wherein the four groups of legs are respectively mounted on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the processing box, the partition is mounted in the middle of the processing box, the partition divides the processing box into a left chamber and a right chamber, the salvaging device is mounted on the left side of the top end of the processing box, the salvaging device corresponds to the position of the left chamber of the processing box, the aeration device is mounted on the left side of the bottom end of the processing box, the aeration device is located in the left chamber of the processing box, the extrusion device is mounted in the right chamber of the processing box, the filtering device is located on the right side of the processing box, and the filtering device is connected to the right end of the processing box.

[0007] Preferably, the salvage device includes a portal frame, a first motor, a screw, a slider, a first electric push rod and a screen frame. The portal frame is installed on the left side of the top of the processing box, the first motor is installed on the right end of the portal frame, the screw is rotatably installed on the upper inner side of the portal frame, the output end of the first motor passes through the right end of the portal frame and is connected to the right end of the screw, a threaded hole is provided in the middle of the slider, the slider is threadedly connected to the screw, the top of the slider is slidably connected to the top inner side of the portal frame, the first electric push rod is installed on the top of the screen frame, the output end of the first electric push rod is connected to the bottom end of the slider, and an opening is provided on the right side of the screen frame.

[0008] Preferably, the aeration device includes a hollow shaft, an aeration disc, a rotary joint, a hose, a filter box, a first filter screen, an air pump, and a rotating device. The hollow shaft is rotatably installed at the left side of the bottom end of the treatment tank in the left chamber of the treatment tank. The aeration disc is installed at the output end of the hollow shaft. The output end of the hose is rotatably connected to the bottom input end of the hollow shaft through the rotary joint. The air pump is installed at the left end of the filter box. The input end of the hose is communicated with the output end of the air pump, and the input end of the air pump is communicated with the left end of the filter box. The filter box is installed at the bottom end of the treatment tank. The first filter screen is installed inside the filter box. An air inlet pipe is communicated with the right end of the first filter screen. The rotating device is installed at the left side of the bottom end of the treatment tank and is cooperatively connected with the hollow shaft.

[0009] Preferably, the rotating device includes a second motor and two sets of gears. The second motor is installed at the left side of the bottom end of the treatment tank. The two sets of gears are respectively installed at the output end of the second motor and the bottom of the hollow shaft, and the two sets of gears are meshed with each other.

[0010] Preferably, the extrusion device includes a second electric push rod, an extrusion plate, a door, a first fixing plate, a third electric push rod, a second fixing plate, a connecting pipe, and a control valve. The second electric push rod is installed at the right side of the top end of the treatment tank. The output end of the second electric push rod passes through the right side of the top end of the treatment tank and extends into the right chamber of the treatment tank to be connected to the top end of the extrusion plate. Four water guide holes are uniformly communicated on the extrusion plate. An opening is communicated at the lower side of the rear end of the right chamber of the treatment tank. The door is rotatably installed at the opening. The second fixing plate is installed at the rear end of the treatment tank. The third electric push rod is installed at the right end of the second fixing plate. The first fixing plate is installed at the left side of the rear end of the door. A slot is provided at the left end of the first fixing plate. The output end of the third electric push rod is inserted into the slot of the first fixing plate. The connecting pipe is installed at the lower part of the partition plate. The input end of the connecting pipe is communicated with the left chamber of the treatment tank, and the output end of the connecting pipe is communicated with the right chamber of the treatment tank. The control valve is installed on the connecting pipe.

[0011] Preferably, the filtering device includes a water tank, a water guide pipe, a second filter screen, a water pump, and a fixing table. The water tank is installed at the left side of the top end of the fixing table. The input end of the water guide pipe is communicated with the lower right side of the treatment tank, and the output end of the water guide pipe is communicated with the left end of the water tank. The second filter screen is installed in the water tank. The water pump is installed at the right side of the top end of the fixing table. The input end of the water pump is communicated with the lower right side of the water tank.

[0012] Preferably, it further includes four sets of third filter screens, and the four sets of third filter screens are respectively installed in the four water guide holes of the extrusion plate.

[0013] Preferably, it further includes a fourth electric push rod, a mounting bracket, a power cleaning roller, a handlebar, a cleaning door, two groups of third fixing plates, a fourth fixing plate, a bolt, a spring, a handle and a grip. A chute is communicated and arranged at the top end of the water tank. The fourth electric push rod is slidably connected to the chute of the water tank. The output end of the fourth electric push rod is connected to the top end of the mounting bracket. The power cleaning roller is rotatably mounted inside the mounting bracket. The handlebar is mounted on the right end of the fourth electric push rod. A cleaning port is communicated and arranged at the right end of the water tank. The cleaning door is rotatably mounted at the cleaning port. Two groups of third fixing plates are mounted on the front side of the right end of the water tank. The fourth fixing plate is mounted on the front side of the right end of the cleaning door. Slide holes are communicated and arranged on both the two groups of third fixing plates and the fourth fixing plate. The bolt is slidably connected to the slide holes on the two groups of third fixing plates. The bolt is inserted into the slide hole on the fourth fixing plate. The spring is sleeved on the middle of the bolt. One end of the spring is connected to the bolt, and the other end of the spring is connected to the inner end of the rear third fixing plate. The handle is mounted on the front side of the top end of the bolt. The grip is mounted on the front side of the right end of the cleaning door.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The waste papermaking pulp is introduced into the left chamber of the treatment tank, and then the aeration device is turned on. The aeration device aerates the papermaking pulp in the left chamber of the treatment tank, so that the impurities in the papermaking pulp are brought to the surface of the papermaking pulp. Then the fishing device is turned on, and the fishing device fishes the impurities in the papermaking pulp. After that, the treated wastewater is introduced into the right chamber of the treatment tank, and then the extrusion device is turned on. The extrusion device extrudes and dehydrates the fibers in the wastewater. At the same time, the filtering device is turned on, and the filtering device filters and discharges the separated water into the filtering device. After the wastewater is completed with solid-liquid separation, the separated fibers are taken out in the right chamber of the treatment tank. By setting this equipment, the precipitation fishing papermaking and solid-liquid separation of the waste papermaking pulp can be designed as a whole, which simplifies its operation process and is convenient for cleaning the filtering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the first perspective structural schematic diagram of the present utility model;

[0016] Figure 2 is the second perspective structural schematic diagram of the present utility model;

[0017] Figure 3 is the third perspective structural schematic diagram of the present utility model;

[0018] Figure 4 is Figure 2 the enlarged structural schematic diagram of A in

[0019] Reference numerals in the drawings: 1, processing tank; 2, legs; 3, gantry; 4, first motor; 5, screw; 6, slider; 7, first electric push rod; 8, sieve frame; 9, second motor; 10, gear; 11, hollow shaft; 12, aeration disc; 13, rotary joint; 14, hose; 15, filtration tank; 16, first filter screen; 17, air pump; 18, partition board; 19, second electric push rod; 20, extrusion plate; 21, door; 22, first fixing plate; 23, third electric push rod; 24, second fixing plate; 25, connecting pipe; 26, control valve; 27, water tank; 28, water guide pipe; 29, second filter screen; 30, water pump; 31, fixing table; 32, third filter screen; 33, fourth electric push rod; 34, mounting bracket; 35, power cleaning roller; 36, handle bar; 37, cleaning door; 38, third fixing plate; 39, fourth fixing plate; 40, bolt; 41, spring; 42, handle; 43, grip. Detailed implementation manners

[0020] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0021] As Figures 1 to 4 shown, the paper pulp recovery equipment for papermaking with biogas residue of the present utility model includes a processing tank 1, four groups of legs 2, a partition board 18, a salvage device, an aeration device, an extrusion device, and a filtration device. The four groups of legs 2 are respectively installed on the left front side, left rear side, right front side, and right rear side of the bottom end of the processing tank 1. The partition board 18 is installed in the middle of the processing tank 1. The partition board 18 divides the processing tank 1 into a left chamber and a right chamber. The salvage device is installed on the left side of the top of the processing tank 1, and the salvage device corresponds to the left chamber of the processing tank 1. The aeration device is installed on the left side of the bottom end in the processing tank 1, and the aeration device is located in the left chamber of the processing tank 1. The extrusion device is installed in the right chamber of the processing tank 1, and the filtration device is located on the right side of the processing tank 1. The filtration device is communicated with the right end of the processing tank 1;

[0022] The waste paper pulp is introduced into the left chamber of the processing tank 1, and then the aeration device is turned on. The aeration device aerates the paper pulp in the left chamber of the processing tank 1, so that the impurities in the paper pulp are brought to the surface of the paper pulp. Then the salvage device is turned on, and the salvage device salvages the impurities in the paper pulp. After that, the treated wastewater is introduced into the right chamber of the processing tank 1, and then the extrusion device is turned on. The extrusion device extrudes and dehydrates the fibers in the wastewater. At the same time, the filtration device is turned on, and the filtration device filters and discharges the separated water into the filtration device. After the wastewater is completely separated from solid and liquid, the separated fibers are taken out from the right chamber of the processing tank 1. By setting this equipment, the precipitation, salvage, papermaking, and solid-liquid separation of the waste paper pulp can be designed as a whole, simplifying its operation process and facilitating the cleaning of the filtration device.

[0023] Preferably, as an embodiment above, the salvage device includes a gantry 3, a first motor 4, a screw 5, a slider 6, a first electric push rod 7, and a sieve frame 8. The gantry 3 is installed on the left side of the top end of the treatment tank 1. The first motor 4 is installed at the right end of the gantry 3. The screw 5 is rotatably installed on the upper side inside the gantry 3. The output end of the first motor 4 passes through the right end of the gantry 3 and is connected to the right end of the screw 5. A threaded hole is communicatively provided in the middle of the slider 6. The slider 6 is threadedly connected to the screw 5. The top end of the slider 6 is slidably connected to the inner top end of the gantry 3. The first electric push rod 7 is installed at the top end of the sieve frame 8. The output end of the first electric push rod 7 is connected to the bottom end of the slider 6. An opening is communicatively provided on the right side of the sieve frame 8. By providing the gantry 3, the first motor 4, the screw 5, the slider 6, the first electric push rod 7, and the sieve frame 8, by turning on the first electric push rod 7, the first electric push rod 7 drives the sieve frame 8 to move downward to the upper side of the papermaking pulp in the left chamber of the treatment tank 1. Then, turn on the first motor 4. The first motor 4 drives the screw 5 to rotate. The screw 5 is threadedly connected to the slider 6. The slider 6 drives the sieve frame 8 to move to the right, thereby salvaging the impurities in the papermaking pulp, which plays a role in salvaging the impurities in the papermaking pulp.

[0024] Preferably, as an embodiment above, the aeration device includes a hollow shaft 11, an aeration disc 12, a rotary joint 13, a hose 14, a filter box 15, a first filter screen 16, an air pump 17, and a rotating device. The hollow shaft 11 is rotatably installed on the left side of the bottom end of the treatment tank 1 in the left chamber of the treatment tank 1. The aeration disc 12 is installed at the output end of the hollow shaft 11. The output end of the hose 14 is rotatably connected to the bottom input end of the hollow shaft 11 through the rotary joint 13. The air pump 17 is installed at the left end of the filter box 15. The input end of the hose 14 is communicatively connected to the output end of the air pump 17. The input end of the air pump 17 is communicatively connected to the left end of the filter box 15. The filter box 15 is installed at the bottom end of the treatment tank 1. The first filter screen 16 is installed inside the filter box 15. An air inlet pipe is communicatively provided at the right end of the first filter screen 16. The rotating device is installed on the left side of the bottom end of the treatment tank 1. The rotating device is cooperatively connected to the hollow shaft 11. By providing the hollow shaft 11, the aeration disc 12, the rotary joint 13, the hose 14, the filter box 15, the first filter screen 16, the air pump 17, and the rotating device, by turning on the air pump 17, air enters the filter box 15, is filtered by the first filter screen 16, and is then led out by the air pump 17, the hose 14, the rotary joint 13, and the hollow shaft 11 through the aeration disc 12. Then, turn on the rotating device. The rotating device drives the hollow shaft 11 to rotate. The hollow shaft 11 drives the aeration disc 12 to rotate, which plays a role in aerating and removing impurities from the papermaking pulp in the left chamber of the treatment tank 1.

[0025] Preferably, as in the above embodiment, the rotating device includes a second motor 9 and two sets of gears 10. The second motor 9 is installed on the left side of the bottom end of the processing box 1, and the two sets of gears 10 are respectively installed at the output end of the second motor 9 and the bottom of the hollow shaft 11. The two sets of gears 10 are meshed with each other. By setting the second motor 9 and the gears 10, by turning on the second motor 9, the second motor 9 drives the left gear 10 to rotate. The left gear 10 meshes with the right gear 10, and the right gear 10 drives the hollow shaft 11 to rotate, which plays a role in driving the hollow shaft 11 to rotate, so that the air discharged from the aeration disc 12 can fully contact the papermaking pulp, thereby improving the impurity removal effect.

[0026] Preferably, as in the above embodiment, the extrusion device includes a second electric push rod 19, an extrusion plate 20, a door 21, a first fixing plate 22, a third electric push rod 23, a second fixing plate 24, a connecting pipe 25 and a control valve 26. The second electric push rod 19 is installed on the right side of the top end of the processing box 1. The output end of the second electric push rod 19 passes through the right side of the top end of the processing box 1 and extends to the right chamber of the processing box 1 to be connected to the top end of the extrusion plate 20. Four water guide holes are uniformly communicated on the extrusion plate 20. An opening is communicated with the lower side of the rear end of the right chamber of the processing box 1. The door 21 is rotatably installed at the opening. The second fixing plate 24 is installed at the rear end of the processing box 1. The third electric push rod 23 is installed at the right end of the second fixing plate 24. The first fixing plate 22 is installed on the left side of the rear end of the door 21. A slot is provided at the left end of the first fixing plate 22. The output end of the third electric push rod 23 is inserted into the slot of the first fixing plate 22. The connecting pipe 25 is installed at the lower part of the partition plate 18. The input end of the connecting pipe 25 is communicated with the left chamber of the processing box 1, and the output end of the connecting pipe 25 is communicated with the right chamber of the processing box 1. The control valve 26 is installed on the connecting pipe 25. By setting the second electric push rod 19, the extrusion plate 20, the door 21, the first fixing plate 22, the third electric push rod 23, the second fixing plate 24, the connecting pipe 25 and the control valve 26, by turning on the second electric push rod 19, the second electric push rod 19 drives the extrusion plate 20 to move downward. The extrusion plate 20 separates the solid and liquid of the wastewater in the right chamber of the processing box 1. The fibers are located below the extrusion plate 20, and the wastewater is introduced above the extrusion plate 20 through the four water guide holes on the extrusion plate 20. Then, the filtering device is turned on to filter the wastewater. After the wastewater is extracted, the third electric push rod 23 is turned on. The third electric push rod 23 is separated from the first fixing plate 22, and then the door 21 is opened to take out the fibers below the extrusion plate 20, which plays a role in separating the solid and liquid of the wastewater.

[0027] Preferably, as in the above embodiment, the filtering device includes a water tank 27, a water guide pipe 28, a second filter screen 29, a water pump 30 and a fixing table 31. The water tank 27 is installed on the left side of the top of the fixing table 31. The input end of the water guide pipe 28 is communicated with the lower side of the right end of the processing box 1, and the output end of the water guide pipe 28 is communicated with the left end of the water tank 27. The second filter screen 29 is installed in the water tank 27. The water pump 30 is installed on the right side of the top of the fixing table 31, and the input end of the water pump 30 is communicated with the lower side of the right end of the water tank 27. By providing the water tank 27, the water guide pipe 28, the second filter screen 29, the water pump 30 and the fixing table 31, by turning on the water pump 30, the waste water in the right chamber of the processing box 1 is introduced into the water tank 27 through the water guide pipe 28, filtered by the second filter screen 29, and discharged through the water pump 30, which plays a role in filtering the waste water.

[0028] Preferably, as in the above embodiment, it further includes four groups of third filter screens 32, and the four groups of third filter screens 32 are respectively installed in the four water guide holes of the pressing plate 20. By providing the third filter screens 32, the waste water can be filtered and then extruded, which can improve the effect of solid-liquid separation of the waste water.

[0029] As a preference of the above embodiments, it further includes a fourth electric push rod 33, a mounting bracket 34, a power cleaning roller 35, a handle rod 36, a cleaning door 37, two groups of third fixing plates 38, a fourth fixing plate 39, a bolt 40, a spring 41, a handle 42 and a grip 43. A chute is communicatedly arranged at the top end of the water tank 27. The fourth electric push rod 33 is slidably connected to the chute of the water tank 27. The output end of the fourth electric push rod 33 is connected to the top end of the mounting bracket 34. The power cleaning roller 35 is rotatably mounted inside the mounting bracket 34. The handle rod 36 is mounted on the right end of the fourth electric push rod 33. A cleaning port is communicatedly arranged at the right end of the water tank 27. The cleaning door 37 is rotatably mounted at the cleaning port. Two groups of third fixing plates 38 are mounted on the front side of the right end of the water tank 27. The fourth fixing plate 39 is mounted on the front side of the right end of the cleaning door 37. Slide holes are communicatedly arranged on both the two groups of third fixing plates 38 and the fourth fixing plate 39. The bolt 40 is slidably connected to the slide holes on the two groups of third fixing plates 38. The bolt 40 is inserted into the slide hole on the fourth fixing plate 39. The spring 41 is sleeved on the middle part of the bolt 40. One end of the spring 41 is connected to the bolt 40, and the other end of the spring 41 is connected to the inner end of the rear third fixing plate 38. The handle 42 is mounted on the front side of the top end of the bolt 40. The grip 43 is mounted on the front side of the right end of the cleaning door 37; by providing the fourth electric push rod 33, the mounting bracket 34, the power cleaning roller 35, the handle rod 36, the cleaning door 37, the third fixing plate 38, the fourth fixing plate 39, the bolt 40, the spring 41, the handle 42 and the grip 43, by turning on the power cleaning roller 35 to make it rotate, and then turning on the fourth electric push rod 33, the fourth electric push rod 33 drives the power cleaning roller 35 to move downward to be in close contact with the second filter screen 29. Then, the fourth electric push rod 33 is pulled to slide to the right through the handle rod 36, and the rotating power cleaning roller 35 cleans the impurities on the second filter screen 29. Then, the bolt 40 is pulled through the handle 42, and the bolt 40 is separated from the fourth fixing plate 39. Then, the cleaning door 37 is opened through the grip 43. Then, the cleaned impurities are discharged through the cleaning port of the water tank 27, which is convenient for cleaning the impurities on the second filter screen 29.

[0030] The papermaking pulp recovery equipment for biogas residue papermaking of the present utility model, when working, first introduces the waste papermaking pulp into the left chamber of the treatment tank 1, then turns on the air pump 17, and the air enters the filter tank 15. After being filtered by the first filter screen 16, it is led out by the air diffuser plate 12 through the air pump 17, the hose 14, the rotary joint 13 and the hollow shaft 11. Then turn on the second motor 9, and the second motor 9 drives the left gear 10 to rotate. The left gear 10 meshes with the right gear 10, and the right gear 10 drives the hollow shaft 11 to rotate. The hollow shaft 11 drives the air diffuser plate 12 to rotate, so that the air led out by the air diffuser plate 12 aerates the papermaking pulp, making the impurities float on the surface of the papermaking pulp. Then turn on the first electric push rod 7, and the first electric push rod 7 drives the screen frame 8 to move downward to the upper side of the papermaking pulp in the left chamber of the treatment tank 1. Then turn on the first motor 4, and the first motor 4 drives the screw rod 5 to rotate. The screw rod 5 is threadedly connected to the slider 6, and the slider 6 drives the screen frame 8 to move to the right, so as to salvage the impurities in the papermaking pulp. Then turn on the control valve 26, and the waste water in the left chamber of the treatment tank 1 is introduced into the right chamber of the treatment tank 1 through the connecting pipe 25. Then turn on the second electric push rod 19, and the second electric push rod 19 drives the extrusion plate 20 to move downward. The extrusion plate 20 separates the solid and liquid of the waste water in the right chamber of the treatment tank 1. The fibers are located below the extrusion plate 20, and the waste water is filtered by the third filter screen 32 of the four water guiding holes of the extrusion plate 20 and then introduced to the upper side of the extrusion plate 20. Then turn on the water pump 30, and the waste water in the right chamber of the treatment tank 1 is introduced into the water tank 27 through the water guiding pipe 28. After being filtered by the second filter screen 29, it is discharged through the water pump 30. After the waste water is separated from the solid and liquid, turn on the third electric push rod 23, and the third electric push rod 23 separates from the first fixing plate 22. Then open the door 21, and take out the fibers below the extrusion plate 20.

[0031] The installation method, connection method or setting method of the papermaking pulp recovery equipment for biogas residue papermaking of the present utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the first motor 4, the first electric push rod 7, the second motor 9, the air pump 17, the second electric push rod 19, the third electric push rod 23, the water pump 30 and the fourth electric push rod 33 of the papermaking pulp recovery equipment for biogas residue papermaking of the present utility model are purchased on the market, and technicians in this industry only need to install and operate according to the attached user manual.

[0032] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A papermaking pulp recovery device for biogas residue papermaking, characterized in that: The invention comprises a treatment box (1), four groups of legs (2), a partition (18), a salvaging device, an aeration device, an extrusion device and a filtering device. The four groups of legs (2) are respectively mounted on the left front side, the left rear side, the right front side and the right rear side of the bottom end of the treatment box (1). The partition (18) is mounted in the middle of the treatment box (1). The partition (18) divides the treatment box (1) into a left chamber and a right chamber. The salvaging device is mounted on the left side of the top end of the treatment box (1). The salvaging device corresponds to the position of the left chamber of the treatment box (1). The aeration device is mounted on the left side of the bottom end of the treatment box (1). The aeration device is located in the left chamber of the treatment box (1). The extrusion device is mounted in the right chamber of the treatment box (1). The filtering device is located on the right side of the treatment box (1). The filtering device is connected to the right end of the treatment box (1).

2. The papermaking pulp recovery equipment for biogas residue papermaking according to claim 1, characterized in that: The salvaging device comprises a portal frame (3), a first motor (4), a screw (5), a slider (6), a first electric push rod (7) and a screen frame (8), wherein the portal frame (3) is mounted on the left side of the top end of the processing box (1), the first motor (4) is mounted on the right end of the portal frame (3), the screw (5) is rotatably mounted on the upper inner side of the portal frame (3), the output end of the first motor (4) passes through the right end of the portal frame (3) and is connected to the right end of the screw (5), a threaded hole is provided in the middle of the slider (6), the slider (6) is threadedly connected to the screw (5), the top end of the slider (6) is slidably connected to the top inner end of the portal frame (3), the first electric push rod (7) is mounted on the top end of the screen frame (8), the output end of the first electric push rod (7) is connected to the bottom end of the slider (6), and an opening is provided on the right side of the screen frame (8).

3. The papermaking pulp recovery equipment for biogas residue papermaking according to claim 2, characterized in that: The aeration device comprises a hollow shaft (11), an aeration plate (12), a rotary joint (13), a hose (14), a filter box (15), a first filter screen (16), an air pump (17) and a rotating device. The hollow shaft (11) is rotatably mounted on the left side of the bottom end of the treatment box (1) and is located in the left chamber of the treatment box (1). The aeration plate (12) is mounted on the output end of the hollow shaft (11). The output end of the hose (14) is rotatably connected to the input end of the bottom end of the hollow shaft (11) through the rotary joint (13). The air pump (17) is installed at the left end of the filter box (15), the input end of the hose (14) is connected to the output end of the air pump (17), the input end of the air pump (17) is connected to the left end of the filter box (15), the filter box (15) is installed at the bottom end of the processing box (1), the first filter screen (16) is installed inside the filter box (15), the right end of the first filter screen (16) is connected to an air inlet pipe, and the rotating device is installed on the left side of the bottom end of the processing box (1), and the rotating device is connected to the hollow shaft (11).

4. The papermaking pulp recovery equipment for biogas residue papermaking according to claim 3, characterized in that: The rotating device comprises a second motor (9) and two sets of gears (10). The second motor (9) is mounted on the left side of the bottom end of the processing box (1). The two sets of gears (10) are respectively mounted on the output end of the second motor (9) and the bottom of the hollow shaft (11). The two sets of gears (10) are meshed with each other.

5. The papermaking pulp recovery equipment for biogas residue papermaking according to claim 4, characterized in that: The extrusion device comprises a second electric push rod (19), an extrusion plate (20), a door (21), a first fixed plate (22), a third electric push rod (23), a second fixed plate (24), a connecting pipe (25) and a control valve (26). The second electric push rod (19) is installed on the right side of the top end of the processing box (1). The output end of the second electric push rod (19) passes through the right side of the top end of the processing box (1) and extends to the right chamber of the processing box (1) and is connected to the top end of the extrusion plate (20). Four groups of water guide holes are evenly connected on the extrusion plate (20). The lower side of the rear end of the right chamber of the processing box (1) is connected to an opening. The door (21) is rotatably installed. At the opening, the second fixing plate (24) is mounted on the rear end of the processing box (1), the third electric push rod (23) is mounted on the right end of the second fixing plate (24), the first fixing plate (22) is mounted on the left side of the rear end of the door (21), a slot is provided at the left end of the first fixing plate (22), the output end of the third electric push rod (23) is plugged into the slot of the first fixing plate (22), the connecting pipe (25) is mounted on the lower part of the partition (18), the input end of the connecting pipe (25) is connected to the left chamber of the processing box (1), the output end of the connecting pipe (25) is connected to the right chamber of the processing box (1), and the control valve (26) is mounted on the connecting pipe (25).

6. The papermaking pulp recovery equipment for biogas residue papermaking according to claim 5, characterized in that: The filtering device comprises a water tank (27), a water pipe (28), a second filter screen (29), a water pump (30) and a fixing platform (31). The water tank (27) is mounted on the left side of the top end of the fixing platform (31). The input end of the water pipe (28) is connected to the lower right end of the processing box (1). The output end of the water pipe (28) is connected to the left end of the water tank (27). The second filter screen (29) is mounted in the water tank (27). The water pump (30) is mounted on the right side of the top end of the fixing platform (31). The input end of the water pump (30) is connected to the lower right end of the water tank (27).

7. The papermaking pulp recovery equipment for biogas residue papermaking according to claim 6, characterized in that: It also includes four groups of third filter screens (32), which are respectively installed in four groups of water guide holes of the extrusion plate (20).

8. The papermaking pulp recovery equipment for biogas residue papermaking according to claim 7, characterized in that: The utility model also comprises a fourth electric push rod (33), a mounting frame (34), a power cleaning roller (35), a handle (36), a cleaning door (37), two sets of third fixing plates (38), a fourth fixing plate (39), a latch (40), a spring (41), a handle (42) and a handle (43); the top end of the water tank (27) is connected to a slide groove; the fourth electric push rod (33) is slidably connected to the slide groove of the water tank (27); the output end of the fourth electric push rod (33) is connected to the top end of the mounting frame (34); the power cleaning roller (35) is rotatably mounted on the inner side of the mounting frame (34); the handle (36) is mounted on the right end of the fourth electric push rod (33); the right end of the water tank (27) is connected to a cleaning port; the cleaning door (37) is rotatably mounted At the cleaning port, two groups of third fixing plates (38) are mounted on the front right side of the water tank (27), and a fourth fixing plate (39) is mounted on the front right side of the cleaning door (37). The two groups of third fixing plates (38) and the fourth fixing plate (39) are both connected with sliding holes. The latch (40) is slidably connected with the sliding holes on the two groups of third fixing plates (38). The latch (40) is inserted into the sliding hole on the fourth fixing plate (39). A spring (41) is sleeved on the middle part of the latch (40). One end of the spring (41) is connected with the latch (40), and the other end of the spring (41) is connected with the inner end of the rear third fixing plate (38). A handle (42) is mounted on the front top of the latch (40), and a handle (43) is mounted on the front right side of the cleaning door (37).

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