Molded pulp vacuum backwater tail pulp recovery device

Abstract

The utility model relates to the technical field of tail pulp recovery, and discloses a molded pulp vacuum backwater tail pulp recovery device which comprises a first filling barrel and a second filling barrel, filter assemblies are arranged in the first filling barrel and the second filling barrel, and each filter assembly comprises a first screen plate, a second screen plate and a metal screen. Net frames are fixedly connected to the outer walls of the first sieve plate, the second sieve plate and the metal screen, base table blocks are fixedly connected to the left side and the right side of each net frame, connecting rods are slidably connected to the tops of the inner walls of the base table blocks, movable columns are slidably connected to the side edges of the inner walls of the base table blocks, and auxiliary handles and limiting plates are fixedly connected to the outer walls of the movable columns. The outer wall of the movable column is sleeved with a first reset spring. According to the utility model, a worker pulls the handle ring to take out the screen plate and the screen and then pulls the auxiliary handle, and the auxiliary handle displaces to drive the limiting plate to separate the screen from the connecting rod, so that the problem that the tail pulp fiber residue is excessive and the recovery is not thorough is solved, the recovery efficiency is improved, and the subsequent maintenance is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper pulp tail pulp recovery technical field especially relates to a kind of paper pulp molding vacuum backwater tail pulp recovery device. BACKGROUND

[0002] In paper pulp molding industry, with the enhancement of environmental awareness and the in-depth development of resource recycling concept, it is crucial to effectively recycle the backwater and tail pulp fiber generated in the production process. The paper pulp molding production process will generate a large amount of backwater containing tail pulp fiber, which will not only cause water resource waste but also pollute the environment if directly discharged. At the same time, as a kind of available resource, tail pulp fiber can reduce production cost and improve enterprise economic benefit if effectively recycled. Therefore, a kind of efficient and reliable paper pulp molding vacuum backwater tail pulp recovery device becomes an urgent need for the development of the industry, which is of great significance for the sustainable development of paper pulp molding industry.

[0003] The existing paper pulp molding vacuum backwater tail pulp recovery device has certain limitations in mechanical structure and technical principle. The mechanical structure is mainly composed of a simple filter tank and a recovery pipeline, which separates the tail pulp fiber and water by gravity sedimentation or simple filter screen. The technical principle is mainly based on natural sedimentation and conventional filtration method, which uses the density difference between tail pulp fiber and water and the size of filter screen aperture to realize separation. In terms of cleaning and maintenance, the whole device is usually disassembled or cleaned manually, which can achieve tail pulp recovery to some extent, but this method has many disadvantages.

[0004] However, the existing paper pulp molding vacuum backwater tail pulp recovery device has a prominent problem, i.e., excessive residual tail pulp fiber and incomplete recovery. Since the traditional gravity sedimentation and simple filter screen cannot accurately separate tail pulp fibers of different lengths, a large amount of tail pulp fiber is discharged with backwater, which not only causes resource waste but also affects the quality of recovered water. Moreover, the traditional cleaning method cannot effectively clean the residual tail pulp fiber in the filter screen and tank, which will accumulate for a long time and reduce the filtering effect, further reducing the recovery efficiency. Therefore, a paper pulp molding vacuum backwater tail pulp recovery device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a kind of paper pulp molding vacuum backwater tail pulp recovery device, which aims at improving the problem of excessive residual tail pulp fiber and incomplete recovery in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of paper pulp molding vacuum backwater tail pulp recovery device, comprising a bucket one and a bucket two, the bucket one and the bucket two are provided with filter assembly inside, the filter assembly is used to filter the fiber in tail pulp;

[0008] The filter assembly comprises a sieve plate one, a sieve plate two and a metal sieve net, the outer wall of the sieve plate one, the sieve plate two and the metal sieve net is fixedly connected with a net frame, the net frame is slidably connected with the inner wall of the barrel one and the barrel two, the sieve plate one and the sieve plate two are located in the inner wall of the barrel one, the metal sieve net is located in the inner wall of the barrel two, the left and right sides of the net frame are fixedly connected with a base block, the inner wall top of the base block is slidably connected with a connecting rod, the top of the connecting rod is fixedly connected with a handle ring, the inner wall side of the base block is slidably connected with a movable column, the outer wall of the movable column is fixedly connected with an auxiliary handle and a limiting plate, the auxiliary handle is located on the outer wall of the base block, the limiting plate is located on the inner wall of the base block, the outer wall of the movable column is sleeved with a reset spring one, one end of the reset spring one is fixedly connected with the side wall of the auxiliary handle, the other end of the reset spring one is fixedly connected with the inner wall of the base block, one end of the movable column is slidably connected in the connecting rod;

[0009] As a further description of the above technical solution:

[0010] The sieve plate one is located above the sieve plate one, a plurality of connecting arms are arranged between the sieve plate one and the sieve plate two, the connecting arms are distributed in a circular manner, and the top and bottom of the net frame are fixedly connected with the two ends of the connecting arms, respectively.

[0011] As a further description of the above technical solution:

[0012] The bottom of the barrel one and the barrel two is fixedly connected with a plurality of supporting legs, the supporting legs are distributed in a circular manner, the side wall of the barrel one and the barrel two is provided with a ladder, and the side wall of the ladder is fixedly connected with the side wall of the barrel one and the barrel two.

[0013] As a further description of the above technical solution:

[0014] The top of the barrel one and the barrel two is provided with a barrel cover, the top center of the barrel cover is fixedly connected with a fixed seat, one side of the fixed seat is provided with an auxiliary handle, and the other side of the fixed seat is provided with an injection pipeline, and the bottom of the injection pipeline and the auxiliary handle is fixedly connected with the top of the barrel cover.

[0015] As a further description of the above technical solution:

[0016] The bottom of the side wall of the barrel one is provided with a connecting pipeline, one end of the connecting pipeline is fixedly connected with the side wall of the barrel one, the other end of the connecting pipeline is fixedly connected with a water pump, the output end of the water pump is fixedly connected with a conveying pipeline, one end of the conveying pipeline is fixedly connected with the top of the injection pipeline of the barrel cover above the barrel two, and the bottom of the side wall of the barrel two is fixedly connected with an output pipeline.

[0017] As a further description of the above technical solutions:

[0018] The outer wall of the first and second filling barrels is fixedly connected with a plurality of clamping seats at the top, the clamping seats are distributed in a circumferential manner, and a positioning groove is formed in the top of each clamping seat.

[0019] As a further description of the above technical solutions:

[0020] The outer wall of the clamping seat is provided with a clamping box, the outer wall of the clamping box is slidably connected to the inner wall of the clamping seat, and the clamping box is fixedly connected to the outer wall of the barrel cover.

[0021] As a further description of the above technical solutions:

[0022] A reset spring two is formed in the inner part of the clamping box, a positioning hole is formed in the inner wall of the reset spring two, one end of the positioning hole is fixedly connected to the top of the reset spring two, and the other end of the positioning hole is fixedly connected with a movable block.

[0023] The utility model has the advantages of the following beneficial effects:

[0024] In the utility model, the sieve plate one and the sieve plate two in the first filling barrel need to be cleaned regularly, and they are pulled out of the tank every 12 hours, and the residual tail pulp fibers are collected by a scraper; the metal screen in the second filling barrel is pulled out of the tank every 72 hours for washing and replacement. The staff pulls out the sieve plate and the screen by pulling the handle ring, and then pulls the auxiliary handle, and the displacement of the auxiliary handle drives the limiting plate, compresses the reset spring one, and separates the screen from the connecting rod, thereby solving the problem of excessive residual tail pulp fibers and incomplete recovery, improving the recovery efficiency, and facilitating subsequent maintenance.

[0025] In the utility model, the tail pulp fiber-containing backwater flows into the first filling barrel through the injection pipeline, is filtered through the two sieve plates in sequence, and is then injected into the second filling barrel by the water pump, is deposited through the metal screen, and the clean water is discharged for recycling. When the barrel cover needs to be opened for internal cleaning, the staff climbs to the top of the filling barrel by a ladder, hooks the fixed seat by a hook, rotates the barrel cover counterclockwise, rotates the clamping box, separates the clamping seat, and presses the movable block away from the positioning groove. When installing, align the clamping box with the clamping seat, rotate the barrel cover clockwise, reset the movable block into the positioning groove, thereby solving the problem of inconvenient opening and closing of the barrel cover, and improving the maintenance efficiency of the staff. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A perspective view of a paper pulp molding vacuum backwater tail pulp recovery device is provided in the utility model;

[0027] Figure 2 A first filling barrel structure schematic view of a paper pulp molding vacuum backwater tail pulp recovery device is provided in the utility model;

[0028] Figure 3A kind of paper pulp moulding vacuum water tail pulp recovery device's sieve plate one structural schematic view is proposed in the utility model;

[0029] Figure 4 A kind of paper pulp moulding vacuum water tail pulp recovery device's card box structural schematic view is proposed in the utility model;

[0030] Figure 5 For Figure 3 Enlarged view in A place of middle;

[0031] Figure 6 For Figure 4 Enlarged view in B place.

[0032] Legend:

[0033] 1, filling barrel one;2, filling barrel two;3, barrel cover;4, injection pipeline;5, fixed seat;6, auxiliary handle;7, card box;8, card seat;9, ladder;10, support leg;11, connecting pipeline;12, water pump;13, conveying pipeline;14, output pipeline;15, sieve plate one;16, sieve plate two;17, metal screen;18, connecting arm;19, handle ring;20, connecting rod;21, net frame;22, base block;23, movable column;24, auxiliary handle;25, limit plate;26, reset spring one;27, reset spring two;28, positioning hole;29, movable block;30, positioning groove. Specific embodiments

[0034] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0035] Referring to the drawings and Figure 5 An embodiment provided by the utility model: a kind of paper pulp moulding vacuum water tail pulp recovery device, including filling barrel one 1 and filling barrel two 2, filling barrel one 1 and filling barrel two 2 are the main container part of entire tail pulp recovery device, are all 3m in diameter, 4m in height 304 stainless steel filling barrel. They provide enclosed space for the processing of tail pulp, ensure that tail pulp does not leak in the recovery process, while bearing the pressure of internal tail pulp and the installation and operation of filter assembly, filter assembly is arranged in filling barrel one 1 and filling barrel two 2, filter assembly is used to filter fiber in tail pulp;

[0036] The filtering assembly comprises a first screen plate 15, a second screen plate 16 and a metal screen 17. The diameters of the first screen plate 15 and the second screen plate 16 are both 2.99 m. The screen hole diameter of the first screen plate 15 is 0.5 mm, and the screen hole diameter of the second screen plate 16 is 0.7 mm. The metal screen 17 is a 23-silk 45-mesh metal screen made of stainless steel. The outer walls of the first screen plate 15, the second screen plate 16 and the metal screen 17 are fixedly connected with a screen frame 21 made of aluminum alloy metal material. The shape of the screen frame 21 is adapted to the inner walls of the first pouring barrel 1 and the second pouring barrel 2, thereby providing a stable support structure for the first screen plate 15, the second screen plate 16 and the metal screen 17. The screen frame 21 is slidingly connected to the inner walls of the first pouring barrel 1 and the second pouring barrel 2. The first screen plate 15 and the second screen plate 16 are located in the inner wall of the first pouring barrel 1, and the metal screen 17 is located in the inner wall of the second pouring barrel 2. The left and right sides of the screen frame 21 are fixedly connected with base blocks 22. The inner walls of the base blocks 22 are slidingly connected with connecting rods 20 at the top. The connecting rods 20 are made of stainless steel rods. The top of each connecting rod 20 is fixedly connected with a handle ring 19. The bottom of each connecting rod 20 is connected with the screen frame 21 of the first screen plate 15, the second screen plate 16 and the metal screen 17. By pulling the handle ring 19, the connecting rod 20 is moved up and down, thereby realizing the operation of taking out or putting into the first screen plate 15, the second screen plate 16 and the metal screen 17 from the pouring barrel. The inner walls of the base blocks 22 are slidingly connected with movable columns 23. The movable columns 23 are moved in the sliding channels in the inner walls of the base blocks 22, thereby realizing the connection and separation with the connecting rods 20, so as to facilitate the cleaning and maintenance of the screen. The outer walls of the movable columns 23 are fixedly connected with auxiliary handles 24 and limiting plates 25. The auxiliary handles 24 are located on the outer walls of the base blocks 22, and the limiting plates 25 are located on the inner walls of the base blocks 22. The limiting plates 25 limit the movement range of the movable columns 23 to prevent the movable columns 23 from being excessively moved and causing structural damage. When the auxiliary handles 24 are pulled, the limiting plates 25 are displaced together with the movable columns 23, and at the same time, the limiting plates 25 apply pressure to the return springs I 26. The outer walls of the movable columns 23 are sleeved with the return springs I 26. One end of each return spring I 26 is fixedly connected to the side wall of the auxiliary handle 24, and the other end of each return spring I 26 is fixedly connected to the inner wall of the base block 22. One end of each movable column 23 is slidingly connected to the inside of the connecting rod 20. The first screen plate 15 is located above the first screen plate 15. A plurality of connecting arms 18 are arranged between the first screen plate 15 and the second screen plate 16. The connecting arms 18 are distributed in a circumferential manner. The connecting arms 18 are fixedly connected to the top and the bottom of the screen frame 21 at the two ends, respectively.

[0037] Specifically, during daily maintenance, the sieve plate 15 and the sieve plate 16 inside the barrel 1 need to be cleaned every 12 hours. In the specific operation, the staff first holds the handle ring 19 by hand, and then applies a pulling force in the vertical upward direction. After the handle ring 19 is subjected to the upward pulling force, the pulling force is transmitted to the connecting rod 20 through the fixed connection with the connecting rod 20, so that the connecting rod 20 moves vertically upward along the track on the top of the inner wall of the base block 22. Since the connecting rod 20 is connected with the mesh frame 21 of the sieve plate 15 and the sieve plate 16, the upward movement of the connecting rod 20 drives the sieve plate 15 and the sieve plate 16 and the mesh frame 21, the base block 22 and other components connected therewith to move upward together until the sieve plate 15 and the sieve plate 16 are pulled out of the tank body of the barrel 1; similarly, the staff pulls the handle ring 19 to make the handle ring 19 drive the connecting rod 20 to move vertically upward, and then pulls the metal sieve net 17 and the related connecting components out of the barrel 2. Then, the staff manually pulls the auxiliary handle 24 on the side wall of the base block 22 outward. After the auxiliary handle 24 is subjected to the outward pulling force, the auxiliary handle 24 moves away from the connecting rod 20 along the outer wall of the base block 22. Since the auxiliary handle 24 is fixedly connected with the movable column 23, the movement of the auxiliary handle 24 drives the movable column 23 to move outward along the sliding channel on the side of the inner wall of the base block 22. The one end of the movable column 23 is originally slidably connected inside the connecting rod 20, and with the outward movement of the movable column 23, the one end gradually leaves the internal hole of the connecting rod 20. While the auxiliary handle 24 moves, the limiting plate 25 fixedly connected therewith also moves outward. The displacement of the limiting plate 25 causes the compression of the reset spring 26, and the reset spring 26 starts to compress and store elastic potential energy. When the one end of the movable column 23 completely leaves the internal hole of the connecting rod 20, the sieve net and the connecting rod 20 are successfully separated, and at this time, the staff uses a scraper to collect the residual tail pulp fibers on the sieve plate 15 and the sieve plate 16 to complete the cleaning work. The metal sieve net 17 inside the barrel 2 needs to be washed and replaced every 72 hours. After the cleaning is completed, when the sieve net is reinstalled, only the auxiliary handle 24 needs to be loosened, and the reset spring 26 restores to the original state by virtue of the elastic potential energy stored before, pushes the movable column 23 to move along the sliding channel on the side of the inner wall of the base block 22 to the connecting rod 20, until the one end of the movable column 23 re-slides into the internal hole of the connecting rod 20, so as to realize the automatic connection of the sieve net and the connecting rod 20.

[0038] Referring to Figure 4 and Figure 6The top of the first filling barrel 1 and the second filling barrel 2 is provided with a barrel cover 3 made of stainless steel, which matches the top opening of the first filling barrel 1 and the second filling barrel 2 and can completely cover the top of the filling barrel, providing a closed working environment for the tail pulp recovery device, preventing the tail pulp from being contaminated by the outside during the processing process, and also reducing the spread of odor. The top center of the barrel cover 3 is fixedly connected with a fixing seat 5 made of metal, which mainly provides a connection point for external equipment such as hooks. The fixing seat 5 is provided with an auxiliary handle 6 on one side, which is generally made of metal and may be designed with anti-slip texture on the surface to increase friction and facilitate the staff to hold firmly. The staff can more easily rotate the barrel cover 3 with its center as the axis by holding the auxiliary handle 6 and applying a rotating force, realizing the opening and closing of the barrel cover 3 and facilitating the operation and maintenance of the inside of the filling barrel. The other side of the fixing seat 5 is provided with an injection pipeline 4 made of corrosion-resistant stainless steel, which mainly functions as a water return conveying channel to introduce the water containing tail pulp fibers generated in the previous process into the first filling barrel 1. The injection pipeline 4 and the auxiliary handle 6 are fixedly connected to the top of the barrel cover 3. The top of the outer wall of the first filling barrel 1 and the second filling barrel 2 is fixedly connected with a plurality of clamping seats 8 made of cast steel, which have good strength and wear resistance and can bear the weight of the barrel cover 3 and various forces generated during opening and closing. The outer wall of the clamping seat 8 is provided with a structure matched with the clamping box 7, so that the clamping box 7 can smoothly slide in the inner wall, realizing the connection and separation operation between the barrel cover 3 and the filling barrel. The clamping seat 8 is distributed in a circumferential shape, and the top of the clamping seat 8 is provided with a positioning groove 30 matched in shape and size with the movable block 29, which is used for accurately positioning the barrel cover 3 when it is closed, ensuring that the barrel cover 3 is tightly combined with the filling barrel to prevent tail pulp leakage. The outer wall of the clamping seat 8 is provided with the clamping box 7, which is slidably connected with the inner wall of the clamping seat 8, forming a movable connection structure, so that the barrel cover 3 can be rotated and opened and closed around the top of the filling barrel. The clamping box 7 is slidably connected to the inner wall of the clamping seat 8 and is fixedly connected to the outer wall of the barrel cover 3. The clamping box 7 is provided with a reset spring 27 in the inside, and the inner wall of the reset spring 27 is provided with a positioning hole 28 for assisting the reset spring 27 to push the movable block 29 back to the positioning groove 30. One end of the positioning hole 28 is fixedly connected to the top of the reset spring 27, and the other end is fixedly connected with the movable block 29.

[0039] Specifically, when the staff needs to open the barrel cover 3, first the staff climbs along the ladder 9 to the top of the first filling barrel 1 and the second filling barrel 2, reaches the top, uses the hook to hook the fixing seat 5, then holds the auxiliary handle 6 with the hand, and applies a rotating force along the counterclockwise direction with the center of the barrel cover 3 as the axis. The auxiliary handle 6 starts to move in a counterclockwise circle around the center of the barrel cover 3 under the action of the staff, and since the auxiliary handle 6 is fixed on the outer wall of the barrel cover 3, the barrel cover 3 rotates counterclockwise together with the auxiliary handle 6. At the same time, the barrel cover 3 rotates, and the plurality of clamping boxes 7 fixedly connected to the outer wall of the barrel cover 3 also move in a counterclockwise circle around the top of the filling barrel. During the rotation of the clamping box 7, the relative position between the inner wall of the clamping box 7 and the clamping seat 8 changes, so that the clamping seat 8 gradually moves away from the inner wall of the clamping box 7. At the same time, the movable block 29 on the inner wall of the reset spring 27 in the clamping box 7 is extruded by the edge of the clamping seat 8. After being extruded, the movable block 29 slides in the direction of approaching the reset spring 27 under the guidance of the positioning hole 28 in the clamping box 7, so that the reset spring 27 is also compressed and stores elastic potential energy. During the extrusion and sliding of the movable block 29, it gradually moves away from the positioning groove 30 opened on the surface of the clamping seat 8, so that the positioning locking between the barrel cover 3 and the filling barrel is released, and at this time the barrel cover 3 can be freely rotated and opened. When installing the barrel cover 3, the staff first aligns the clamping box 7 on the outer wall of the barrel cover 3 with the clamping seat 8 on the top of the filling barrel, so that the opening of the clamping box 7 is aligned with the clamping seat 8, and then the staff holds the auxiliary handle 6 and applies a rotating force along the clockwise direction with the center of the barrel cover 3 as the axis. The auxiliary handle 6 drives the barrel cover 3 to rotate clockwise, and during the rotation of the barrel cover 3, the clamping box 7 also rotates clockwise. When the clamping box 7 rotates to a position where the clamping seat 8 is appropriately positioned relative to the inner wall of the clamping box 7, the clamping seat 8 starts to slide into the inner wall of the clamping box 7. As the clamping seat 8 gradually slides in, the reset spring 27, which has been compressed and stored elastic potential energy, starts to recover at this time. During the recovery of the reset spring 27, a pushing force in the direction of the positioning groove 30 is applied to the movable block 29 through the positioning hole 28. Under the action of the pushing force, the movable block 29 slides in the direction of the positioning groove 30 under the guidance of the positioning hole 28 in the clamping box 7. When the position is in place, the movable block 29 accurately enters the inner wall of the positioning groove 30 under the joint action of the reset spring 27 and the positioning hole 28, completing the positioning locking of the barrel cover 3, and thus completing the operation of opening and closing the barrel cover 3, so as to achieve the effect of quickly and efficiently opening and closing the barrel cover 3, and ensure the sealing property of the filling barrel and the convenience of operation of the paper pulp molding vacuum water return tail pulp recovery device during use.

[0040] Reference Figure 1 and Figure 2The bottom of the barrel one 1 and the bottom of the barrel two 2 are fixedly connected with a plurality of supporting legs 10, the supporting legs 10 are distributed in a circumferential shape, the side wall of the barrel one 1 and the side wall of the barrel two 2 are provided with ladders 9, the side wall of the ladders 9 is fixedly connected to the side wall of the barrel one 1 and the side wall of the barrel two 2, the bottom of the side wall of the barrel one 1 is provided with a connecting pipeline 11, which guides the backwater at the bottom of the barrel one 1 after preliminary filtration to the water pump 12, realizes the communication between the barrel one 1 and the water pump 12, and ensures that the backwater can smoothly enter the water pump for subsequent conveying, one end of the connecting pipeline 11 is fixedly connected to the side wall of the barrel one 1, the other end of the connecting pipeline 11 is fixedly connected with the water pump 12, the motor inside the water pump 12 drives the impeller to rotate to generate suction and pressure, extracts and pressurizes the backwater conveyed by the connecting pipeline 11, so that the backwater can be conveyed to the barrel two 2 along the conveying pipeline 13, the output end of the water pump 12 is fixedly connected with the conveying pipeline 13, which mainly functions to convey the backwater filtered by the barrel one 1 to the inside of the barrel two 2 under the action of the water pump 12, and provides a channel for the secondary treatment of the backwater, one end of the conveying pipeline 13 is fixedly connected with the top of the injection pipeline 4 of the barrel cover 3 above the barrel two 2, the bottom of the side wall of the barrel two 2 is fixedly connected with an output pipeline 14, which functions to discharge the clean water obtained after secondary filtration from the bottom of the barrel two 2, so as to be recycled;

[0041] Specifically, in use of the pulp molding vacuum backwater tail pulp recovery device, first, a large amount of backwater containing tail pulp fibers is generated after the front process treatment. The backwater flows vertically downward along the inner wall of the injection pipeline 4 through the injection pipeline 4 to the inside of the pouring bucket 1. When the backwater enters the inside of the pouring bucket 1, it first contacts the sieve plate 1 5 to perform the first filtration. The sieve plate 1 5 is uniformly distributed with sieve holes of a specific size. When the backwater passes through the sieve plate 1 5, the tail pulp fibers with a length greater than 0.7 mm will be retained on the surface of the sieve plate 1 5 due to the size greater than the sieve holes, and the tail pulp fibers less than 0.7 mm will continue to flow downward with the backwater to be further filtered by the sieve plate 2 1 6. The sieve plate 2 1 6 also has sieve holes of a specific size. The tail pulp fibers longer than 0.5 mm will be retained on the sieve plate 2 1 6 due to the size greater than the sieve holes of the sieve plate 2 1 6, and the tail pulp fibers less than 0.5 mm will pass through the sieve holes of the sieve plate 2 1 6 and fall vertically downward to the bottom of the pouring bucket 1 under the action of gravity. The backwater after the twice filtration of the pouring bucket 1 is located at the bottom of the pouring bucket 1. One end of the connecting pipeline 1 1 is connected to the bottom of the side wall of the pouring bucket 1. The backwater flows into the connecting pipeline 1 1 under the action of gravity. Then, the water pump 1 2 is started. The motor inside the water pump 1 2 drives the impeller to rotate at a high speed, forming a low pressure area in the center of the impeller to generate suction to suck the backwater in the connecting pipeline 1 1 into the water pump 1 2. Then, under the action of the impeller, the backwater obtains kinetic energy, is pressurized and is sent upward along the output end of the water pump 1 2 through the conveying pipeline 1 3. The conveying pipeline 1 3 sends the backwater to the top of the injection pipeline 4 of the bucket cover 3 above the pouring bucket 2. The backwater flows vertically downward along the injection pipeline 4 under the action of gravity and is injected into the metal sieve 1 7 in the pouring bucket 2. When the backwater contacts the metal sieve 1 7, only a small amount of residual waste fiber tail pulp will be deposited on the surface of the metal sieve 1 7 due to the size greater than the mesh holes of the metal sieve 1 7, and the clean water will directly pass through the mesh holes of the metal sieve 1 7 under the action of gravity and flow vertically downward into the bottom of the pouring bucket 2. Finally, the clean water at the bottom of the pouring bucket 2 flows out under the action of gravity through the output pipeline 1 4 fixedly connected to the bottom of the side wall of the pouring bucket 2, thereby realizing recycling and reuse.

[0042] Working principle: when using the pulp molding vacuum backwater tail pulp recovery device, first, a large amount of tail pulp fiber containing backwater will be generated after the previous process, the backwater flows into the pouring barrel 1 through the injection pipeline 4, the backwater is filtered for the first time through the sieve plate 1, the tail pulp fiber with a length greater than 0.7mm will be retained on the surface of the sieve plate 1, the tail pulp fiber smaller than 0.7mm will continue to be filtered by the sieve plate 2, the tail pulp fiber longer than 0.5mm will be retained on the sieve plate 2, and the tail pulp smaller than 0.5mm will pass through the sieve hole of the sieve plate 2 into the bottom of the pouring barrel 1; the backwater filtered twice through the pouring barrel 1 is injected into the pouring barrel 2 through the water pump 12, when the backwater is injected into the metal sieve net 17, only a small amount of residual waste fiber tail pulp will be deposited on the surface of the metal sieve net 17, and the clean water will directly flow into the bottom of the pouring barrel 2 and be discharged through the output pipeline 14 for recycling and reuse. During daily maintenance, the sieve plate 1 and the sieve plate 2 inside the pouring barrel 1 are lifted out of the tank body of the pouring barrel 1 every 12 hours, and the residual tail pulp fiber is collected by the scraper; the metal sieve net 17 inside the pouring barrel 2 is lifted out of the tank body of the pouring barrel 2 every 72 hours for flushing and replacement. First, when the worker opens the barrel cover 3, first climb to the top of the pouring barrel 1 and the pouring barrel 2 through the ladder 9, hook the fixed seat 5 with the hook, and rotate the entire barrel cover 3 counterclockwise through the auxiliary handle 6. While the barrel cover 3 is rotating, the multiple clamping boxes 7 on the outer wall of the barrel cover 3 are also rotating, so that the clamping seat 8 is away from the inner wall of the clamping box 7, and the sliding block 29 on the inner wall of the reset spring 2 7 is extruded and slides, so as to be away from the positioning groove 30 on the surface of the clamping seat 8. At the same time, the positioning hole 28 on the top of the sliding block 29 is also forced to compress. When installing the barrel cover 3, align the clamping box 7 and the clamping seat 8, then rotate the barrel cover 3 clockwise, slide the clamping seat 8 into the inner wall of the clamping box 7, and after the position is in place, the positioning hole 28 restores the sliding block 29 into the inner wall of the positioning groove 30, so as to complete the operation of opening and closing the barrel cover 3, so as to achieve the effect of quickly and efficiently opening and closing the barrel cover 3. The worker pulls the lifting handle ring 19 to drive the connecting rod 20 to take out the sieve plate 1, the sieve plate 2 and the metal sieve net 17, manually pulls the auxiliary handle 24 on the side wall of the base block 22 to make one end of the auxiliary handle 24 away from the inner hole of the connecting rod 20, and the displacement of the auxiliary handle 24 also drives the limiting plate 25 to displace, so that the limiting plate 25 displaces the reset spring 1 26, so that the sieve net can be separated from the connecting rod 20, so that the worker can more conveniently clean the sieve net, so as to achieve the effect of efficiently cleaning the sieve net.

[0043] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A pulp molding vacuum wastewater recovery device, comprising a first filling tank (1) and a second filling tank (2), characterized in that: The filling tank 1 (1) and filling tank 2 (2) are equipped with filter components, which are used to filter the fibers in the tailings. The filter assembly includes a sieve plate one (15), a sieve plate two (16), and a metal screen (17). A mesh frame (21) is fixedly connected to the outer walls of the sieve plate one (15), the sieve plate two (16), and the metal screen (17). The mesh frame (21) is slidably connected to the inner walls of the filling tank one (1) and the filling tank two (2). The sieve plate one (15) and the sieve plate two (16) are located on the inner wall of the filling tank one (1), and the metal screen (17) is located on the inner wall of the filling tank two (2). A base block (22) is fixedly connected to both the left and right sides of the mesh frame (21). A connecting rod (20) is slidably connected to the top of the inner wall of each base block (22). The top of the connecting rod (20) is fixedly connected to... There is a handle ring (19). The inner wall of the base block (22) is slidably connected to a movable column (23). The outer wall of the movable column (23) is fixedly connected to an auxiliary handle (24) and a limiting plate (25). The auxiliary handle (24) is located on the outer wall of the base block (22), and the limiting plate (25) is located on the inner wall of the base block (22). The outer wall of the movable column (23) is fitted with a reset spring (26). One end of the reset spring (26) is fixedly connected to the side wall of the auxiliary handle (24), and the other end of the reset spring (26) is fixedly connected to the inner wall of the base block (22). One end of the movable column (23) is slidably connected inside the connecting rod (20).

2. The pulp molding vacuum re-water tailings recovery device according to claim 1, characterized in that: The first sieve plate (15) is located above the second sieve plate (16). Multiple connecting arms (18) are provided between the first sieve plate (15) and the second sieve plate (16). The connecting arms (18) are distributed in a circular shape. The two ends of the connecting arms (18) are fixedly connected to the top and bottom of the mesh frame (21).

3. The pulp molding vacuum re-water tailings recovery device according to claim 1, characterized in that: Both the first filling bucket (1) and the second filling bucket (2) are fixedly connected to a number of support legs (10) at their bottoms. The support legs (10) are distributed in a circular shape. Both the first filling bucket (1) and the second filling bucket (2) are provided with ladders (9) on their side walls. The side walls of the ladders (9) are fixedly connected to the side walls of the first filling bucket (1) and the second filling bucket (2).

4. The pulp molding vacuum re-water tailings recovery device according to claim 3, characterized in that: Both the first filling bucket (1) and the second filling bucket (2) are provided with bucket lids (3) at the top. A fixed seat (5) is fixedly connected to the center of the top of the bucket lid (3). An auxiliary handle (6) is provided on one side of the fixed seat (5), and an injection pipe (4) is provided on the other side of the fixed seat (5). The bottom of the injection pipe (4) and the auxiliary handle (6) are both fixedly connected to the top of the bucket lid (3).

5. A pulp molding vacuum wastewater recovery device according to claim 4, characterized in that: A connecting pipe (11) is provided at the bottom of the side wall of the first filling tank (1). One end of the connecting pipe (11) is fixedly connected to the side wall of the first filling tank (1). A water pump (12) is fixedly connected to the other end of the connecting pipe (11). A conveying pipe (13) is fixedly connected to the output end of the water pump (12). One end of the conveying pipe (13) is fixedly connected to the top of the injection pipe (4) of the upper cover (3) of the second filling tank (2). An output pipe (14) is fixedly connected to the bottom of the side wall of the second filling tank (2).

6. The pulp molding vacuum re-water tailings recovery device according to claim 5, characterized in that: Multiple card holders (8) are fixedly connected to the top of the outer wall of both the first filling bucket (1) and the second filling bucket (2). The card holders (8) are distributed in a circular shape, and each card holder (8) has a positioning groove (30) on its top.

7. A pulp molding vacuum wastewater recovery device according to claim 6, characterized in that: Each card holder (8) is provided with a card box (7) on its outer wall. The outer wall of the card box (7) is slidably connected to the inner wall of the card holder (8). The card box (7) is fixedly connected to the outer wall of the bucket lid (3).

8. A pulp molding vacuum wastewater recovery device according to claim 7, characterized in that: Each card box (7) has a reset spring (27) inside. The inner wall of the reset spring (27) has a positioning hole (28). One end of the positioning hole (28) is fixedly connected to the top of the reset spring (27), and the other end of the positioning hole (28) is fixedly connected to a movable block (29).

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