Heavy slag separator for papermaking production
By designing a detachable cylindrical and conical structure, combined with a telescopic tube and a stirring rod, the problems of clogging of the heavy slag remover and pulp overflow during disassembly were solved, enabling smooth pulp discharge and efficient equipment cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUILIN QIFENG PAPER
- Filing Date
- 2026-02-03
- Publication Date
- 2026-05-12
AI Technical Summary
Existing heavy material desanders are prone to clogging due to the agglomeration of heavy impurities during long-term use, and pulp is easily spilled during disassembly, resulting in economic losses.
A slag remover body comprising a cylinder, a cone, and a collar is designed. It adopts a detachable connection method and combines a telescopic tube, a buffer mechanism, and a stirring rod to achieve separation and unblocking of the cone and cylinder, prevent pulp overflow, and clear impurities at the bottom of the cone through the stirring rod.
This effectively prevents pulp from overflowing from the cone, ensuring smooth pulp discharge, reducing economic losses, and improving the equipment's operational stability and cleaning efficiency.
Smart Images
Figure CN122013583A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of papermaking equipment technology, specifically a heavy slag remover for papermaking production. Background Technology
[0002] The heavy slag remover for papermaking is the core purification equipment in the papermaking pulping process. Its core principle is to use the combined effect of centrifugal force and gravity to separate heavy impurities (such as sand, iron filings, metal particles, hard fiber bundles, etc.) from light pulp in the pulp.
[0003] For example, patent CN203755075U, published on August 6, 2014, discloses a cyclone-type pulp descaling device for papermaking. This device relates to fluid separation and includes a good pulp outlet, a pulp outlet, a descaling separator body, a cone, a slag outlet, and a backflushing device. The descaling separator body consists of an inlet head and a cone. The descaling separator body has a conical structure, and the good pulp outlet, pulp outlet, descaling separator body, cone, slag outlet, and backflushing device are connected sequentially from top to bottom. The advantage of this invention lies in the application of bottom axial backflushing technology to the pulp cyclone separator body. This primarily improves the stability of the descaling separator body under high inlet concentrations, reduces clogging during operation, and reduces the content of useful fibers in the separated heavy impurities, allowing more fibers to be discharged from the good pulp outlet, thereby reducing fiber loss and raw material costs. This makes it highly practical.
[0004] In existing heavy material desanders, during prolonged use, the heavy impurities in the pulp are mostly high-density, large-particle forms. Some impurities are also prone to clumping due to pulp moisture. When the pulp spirals within the cone of the heavy material desander, the radius of rotation in the lower section decreases significantly, the water flow velocity decreases accordingly, and the centrifugal force weakens. This makes it difficult to continuously remove heavy impurities, which instead tend to accumulate on the lower section of the cone's inner wall, causing blockage at the bottom discharge port of the heavy material desander. Currently, the blockage problem is generally addressed by shutting down and disassembling the heavy material desander for cleaning. However, during disassembly, the discharge port is often blocked, causing pulp to accumulate inside the heavy material desander. Neither heavy impurities nor light pulp can be effectively discharged, resulting in pulp overflowing from the disassembly point during disassembly. This overflow can cause additional economic losses, especially in some expensive high-end pulps. Summary of the Invention
[0005] The purpose of this invention is to provide a heavy slag remover for papermaking production, so as to overcome the above-mentioned shortcomings of the prior art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a heavy slag remover for papermaking production, comprising a fixed frame and a slag remover body. A slurry injection main pipe is installed on the fixed frame. A slurry outlet pipe is installed at the top of the slag remover body, and a slag discharge pipe is installed at the bottom. The slurry injection main pipe is connected to the side. The slag remover body includes a cylinder, a cone, and a collar. The collar is fixedly connected to the upper end of the cone. The cylinder and the cone are detachably connected. The collar is fitted inside the cylinder and slidably connected to the cylinder. A telescopic pipe is provided between the cone and the slag discharge pipe, and the cone is detachably connected to the telescopic pipe.
[0007] Preferably, a grouting branch pipe is provided between the slag remover body and the grouting main pipe, and one end of the grouting branch pipe passes through the cylinder and communicates with the inside of the cylinder.
[0008] Preferably, the lower end of the cylinder is fixedly connected to a first disc, and the upper end of the cone is fixedly connected to a second disc, with the first and second discs connected by bolts.
[0009] Preferably, it also includes a buffer mechanism to slow down the descent speed of the cone after disassembly.
[0010] Preferably, the buffer mechanism includes a sleeve, a fixed rod, and a piston. The upper end of the fixed rod is fixedly connected to the lower surface of the first disc, the piston is fixedly connected to the lower end of the fixed rod, the upper end of the sleeve is fixedly connected to the second disc, the inner wall of the sleeve is provided with an air cavity, the piston is located inside the air cavity and is dynamically sealed to the air cavity, and the bottom outer wall of the sleeve is provided with an air hole.
[0011] Preferably, both ends of the passive rod have inclined surfaces, one end of which forms a wedge-shaped fit with the drive block through the inclined surface, and the other end forms a wedge-shaped fit with the bottom of the bolt through the inclined surface.
[0012] Preferably, the sleeve is further provided with a sliding groove, the slider is located inside the sliding groove, and forms a sliding guide engagement with the sliding groove.
[0013] Preferably, a plurality of limiting rods are fixed on the upper surface of the second disc, and the drive plate is slidably connected to the limiting rods.
[0014] Preferably, multiple limiting plates are fixed on the upper surface of the cone, and the passive rod is located inside the limiting plate and forms a sliding guide engagement with the limiting plate.
[0015] Preferably, it also includes a stirring rod, which is movably installed inside the slag discharge pipe, and a rotating lifting mechanism for driving the stirring rod to rotate and move up and down is provided in the middle of the fixed frame.
[0016] The beneficial effects of the present invention are as follows: In the above technical solution, the cylinder and telescopic tube provided by the present invention can prevent the pulp in the cone from overflowing from the cone during the disassembly process of the cylinder and the cone. Secondly, the design of the telescopic tube can not only adapt to the relative movement between the cone and the slag discharge pipe, but also further realize the unblocking of the bottom of the cone, which is conducive to the subsequent discharge of pulp. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0018] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention.
[0019] Figure 2 Cross-sectional views of a cylindrical and a conical cylinder provided in an embodiment of the present invention.
[0020] Figure 3 A cross-sectional view of the sleeve provided in an embodiment of the present invention.
[0021] Figure 4 This is a schematic diagram of a driver board provided in an embodiment of the present invention.
[0022] Figure 5 This is a schematic diagram of a driver block provided in an embodiment of the present invention.
[0023] Figure 6 This is a schematic diagram of a fixing rod provided in an embodiment of the present invention.
[0024] Figure 7 This is a schematic diagram of a slider provided in an embodiment of the present invention.
[0025] Figure 8 This is a cross-sectional view of a telescopic tube provided in an embodiment of the present invention.
[0026] Figure 9 A schematic diagram of a lifting gear provided in an embodiment of the present invention.
[0027] Figure 10 This is a two-section view of the branch pipe provided in an embodiment of the present invention.
[0028] Explanation of reference numerals in the attached figures:
[0029] 1. Fixed frame; 11. Grouting main pipe; 111. Valve 1; 112. Fixed plate; 12. Grout outlet pipe; 121. Valve 2; 13. Slag discharge pipe; 14. Slag remover body; 141. Cylinder; 1411. Output pipe; 1412. Grouting branch pipe; 1413. First disc; 142. Conical cylinder; 1421. Second disc; 1422. Screw hole; 1423. Bolt; 143. Collar; 15. Telescopic pipe; 151. Valve 3; 152. Valve 4; 16. Stirring rod; 2. Buffer mechanism; 2 1. Sleeve; 211. Air chamber; 212. Slide groove; 22. Fixed rod; 221. Piston; 23. Air hole; 24. Slider; 3. Adjustment mechanism; 31. Drive plate; 32. Drive block; 33. Connecting rod; 34. Spring; 35. Passive rod; 36. Limiting plate; 37. Limiting plate; 38. Limiting rod; 4. Rotation lifting mechanism; 41. Motor 1; 42. Bevel gear 1; 43. Bevel gear 2; 44. Motor 2; 45. Lifting gear; 46. Fixed block; 47. Lifting groove; 48. Rotating groove. Detailed Implementation
[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0031] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," and "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0032] like Figures 1-10As shown in the figure, an embodiment of the present invention provides a heavy slag remover for papermaking production, including a fixed frame 1 and a slag remover body 14. A slurry injection main pipe 11 is installed on the fixed frame 1. A slurry outlet pipe 12 is installed on the top of the slag remover body 14, a slag discharge pipe 13 is installed on the bottom, and the slurry injection main pipe 11 is connected to the side. The slag remover body 14 includes a cylinder 141, a cone 142, and a collar 143. The collar 143 is fixedly connected to the upper end of the cone 142. The cylinder 141 and the cone 142 are detachably connected. The collar 143 is sleeved inside the cylinder 141 and slidably connected to the cylinder 141. A telescopic pipe 15 is provided between the cone 142 and the slag discharge pipe 13, and the telescopic pipe 15 is detachably connected to the cone 142.
[0033] Specifically, such as Figure 1 and Figure 2 As shown, the main grouting pipe 11 is the raw material channel for papermaking pulping, the pulp outlet pipe 12 is the flow channel for light pulp, and the slag discharge pipe 13 is the channel for discharging heavy impurities. An output pipe 1411 is provided inside the cylinder 141. The upper end of the output pipe 1411 passes through the cylinder 141 and connects to the pulp outlet pipe 12, and is interconnected with the pulp outlet pipe 12. A grouting branch pipe 1412 is provided between the slag remover body 14 and the main grouting pipe 11. One end of the grouting branch pipe 1412 passes through the cylinder 141 and is interconnected with the interior of the cylinder 141. The central axis is tangent to the cylinder 141. The pulp output from the grouting branch pipe 1412 enters the cylinder 141 tangentially. The other end of the grouting branch pipe 1412 is connected to and communicates with the grouting main pipe 11. The slag discharge pipe 13 is interconnected with the cone 142. The slag discharge pipe 12 has an internal valve 121, the grouting branch pipe 1412 has an internal valve 111, and the slag discharge pipe 13 has an internal valve 151. Valves 111, 121, and 151 are all electrically controlled valves, which is existing technology and will not be described in detail. Figure 2 As shown, an annular groove is formed on the inner wall of the cylinder 141, and the collar 143 is located inside the annular groove, forming a sliding guide fit with the annular groove. That is, the collar 143 is slidably connected to the cylinder 141 through the annular groove. The inner diameter of the collar 143 is the same as the top diameter inside the cylinder 141. In other words, after the collar 143 extends into the groove, the collar 143 will not form a protrusion or depression inside the cylinder 141, and will not affect the flow of pulp inside the cylinder 141. In this embodiment, the cylinder 141 and the cone 142 are detachably connected. The detachable connection method can be snap-fit, threaded connection, etc. Similarly, the cone 142 and the telescopic tube 15 are detachably connected. The detachable connection method can also be snap-fit, threaded connection, etc.
[0034] During operation, pulp enters the desander body 14 through the injection main pipe 11 and injection branch pipe 1412, where heavy impurities are separated. Due to gravity, the heavy impurities move downwards and flow through the telescopic pipe 15 into the discharge pipe 13 for discharge. Light pulp is backflushed upwards inside the desander body 14 and enters the output pipe 1411, then the discharge pipe 12 for discharge. Blockage occurs at the lower end of the cone 142 when heavy impurities settle and are not carried away by the water flow. To resolve the blockage, the currently blocked slag remover body 14 is deactivated, and the adjacent slag remover body 14 of the backup group is activated. Then, the blocked slag remover body 14 needs to be disassembled, separating the cone 142 from the cylinder 141. At this time, valves 111 and 121 are closed to prevent light slurry from flowing out of the output pipe 1411 during the separation of the cone 142 and cylinder 141. Subsequently, the operator can remove the cone 142 from the bottom of the cylinder 141. After disassembly, the cone 142 moves downwards, and during this movement, it will compress and contract the telescopic tube 15. At this point, the space inside the telescopic tube 15 is compressed and reduced. This compression causes heavy impurities inside the telescopic tube 15 to flow backward into the cone 142. These heavy impurities then clear the bottom opening of the cone 142, preventing blockage and ensuring proper slurry discharge. When the cone 142 reaches its limit and the telescopic tube 15 can no longer contract, the cone 142 is removed from the top of the telescopic tube 15 and cleaned. After cleaning, the cone 142 is then removed from the top. 2. Reinstall between cylinder 141 and telescopic pipe 15, and then open valve 3 151, valve 1 111 and valve 2 121. The design of cylinder 141 and telescopic pipe 15 can prevent pulp from overflowing from cone 142 during the disassembly of cylinder 141 and cone 142. Secondly, the design of telescopic pipe 15 can not only adapt to the relative movement between cone 142 and slag discharge pipe 13, but also further unclog the bottom of cone 142, which is conducive to subsequent pulp discharge.
[0035] It should be noted that, in order to prevent the pulp inside the cone 142 from leaking out from the bottom opening after the cone 142 is disassembled, an electric valve can also be provided at the bottom of the cone 142 in this embodiment. The electric valve is in the open state during the use of the cone 142 and in the closed state after the cone 142 is disassembled. The design of this electric valve can prevent the pulp from leaking out from the bottom opening.
[0036] In another embodiment of the present invention, optionally, a first disc 1413 is fixedly connected to the lower end of the cylindrical cylinder 141, and a second disc 1421 is fixedly connected to the upper end of the conical cylinder 142. The surface of the second disc 1421 is provided with multiple screw holes 1422. The first disc 1413 and the second disc 1421 are connected by bolts 1423, which pass through the screw holes 1422 into the second disc 1421. When connecting the cylindrical cylinder 141 and the conical cylinder 142, the first disc 1413 and the second disc 1421 need to be aligned, and then the bolts 1423 are used to pass through the first disc 1413. 13 Insert the bolt 1422 into the corresponding screw hole 1422 on the second disc 1421, and then tighten the bolt 1423. By tightening multiple bolts 1423 in sequence, the cylinder 141 and the cone 142 can be connected. Similarly, when disassembling the cylinder 141 and the cone 142, the bolts 1423 need to be rotated one by one to unscrew the bolts 1423 from the screw hole 1422. By unscrewing multiple bolts 1423 from the screw hole 1422 in sequence, the cylinder 141 and the cone 142 can be disassembled. This allows the cylinder 141 and the cone 142 to be connected and disassembled, which facilitates the subsequent cleaning of the cone 142.
[0037] In the above embodiments, such as Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, when the lower end of the cone 142 is blocked by heavy impurities, workers need to remove the cone 142 from the lower part of the cylinder 141. When the cone 142 is blocked, there is a large amount of pulp and heavy impurities inside, which significantly increases the weight of the cone 142. After removing the multiple bolts 1423 connecting the cylinder 141 and the cone 142, the cone 142 loses the fixation of the multiple bolts 1423 and descends rapidly. The rapid descent of the cone 142 makes it difficult for workers to control, which not only affects the subsequent disassembly process, but may also cause a safety accident if the cone 142 tilts. Therefore, in order to solve this technical problem, in another embodiment of the invention, a buffer mechanism 2 is further included. The buffer mechanism 2 is used to slow down the descent speed of the cone 142 after disassembly.
[0038] Specifically, the buffer mechanism 2 includes a sleeve 21, a fixed rod 22, and a piston 221. The upper end of the fixed rod 22 is fixedly connected to the lower surface of the first disc 1413, and the piston 221 is fixedly connected to the lower end of the fixed rod 22. The upper end of the sleeve 21 is fixedly connected to the second disc 1421. An air chamber 211 is formed on the inner wall of the sleeve 21, and the piston 221 is located inside the air chamber 211 and is dynamically sealed to the air chamber 211. An air hole 23 is formed on the bottom outer wall of the sleeve 21. The sleeve 21 and the fixed rod 22 are both arranged vertically, and the central axis of the sleeve 21 is consistent with the central axis of the fixed rod 22. In actual use, when the first disc 1413 and the second disc 1421 are separated, the second disc 142... 1. Without the support of bolt 1423, the second disc 1421 and the cone 142 descend. As the second disc 1421 and the cone 142 descend, the piston 221 and the sleeve 21 undergo relative displacement. The piston 221 moves upward inside the sleeve 21. At this time, the space below the piston 221 gradually increases. Since the size of the air hole 23 opening is fixed, the airflow entering the air chamber 211, that is, the space below the piston 221, is also fixed. Therefore, under the action of air pressure, the piston 221 will rise steadily and slowly in the air chamber 211 due to the limitation of the airflow, which causes the sleeve 21 and the cone 142 to descend slowly, thereby avoiding the phenomenon of rapid descent of the cone 142.
[0039] In the above embodiment, the cylindrical 141 and the conical 142 are connected by a detachable connection method using flanges (first disc 1413 and second disc 1421) and bolts 1423. In the existing disassembly process, most of the bolts 1423 on the first disc 1413 and second disc 1421 are removed one by one. This results in the second disc 1421 tilting downwards due to gravity on the side that was disassembled, influenced by the weight of the conical 1422 itself and the pulp inside. At this point, the first disc 1413 and second disc 1421 interlock, making it difficult to remove the last remaining bolts 1423. Since it is removed from the second disc 1421, in another embodiment of the present invention, it further includes an adjustment mechanism 3. The adjustment mechanism 3 includes a drive plate 31 and a passive rod 35. Both the drive plate 31 and the passive rod 35 are movably mounted on the second disc 1421. A drive block 32 is fixed on the lower surface of the drive plate 31. A connecting rod 33 is fixedly connected below the drive block 32. One end of the connecting rod 33 is fixed to the drive block 32. A slider 24 is also provided inside the sleeve 21. The slider 24 is slidably connected to the sleeve 21. A connecting plate is fixedly mounted on the other end of the connecting rod 33. One end of the connecting plate is connected to the slider 24. One end of the passive rod 35 abuts against the surface of the drive block 32. The passive rod 35 and the drive block 32 form a wedge-shaped fit.
[0040] Specifically, such as Figure 5 As shown, the drive block 32 has an inverted V-shaped structure, and both ends of the driven rod 35 have inclined surfaces. One end forms a wedge-shaped fit with the drive block 32 through the inclined surface, and the other end extends directly above the screw hole 1422, forming a wedge-shaped fit with the bottom of the bolt 1423 through the inclined surface. Figure 6 and Figure 7 As shown, a sliding groove 212 is also provided inside the sleeve 21. The sliding groove 212 is located above the air hole 23 and communicates with the air hole 23. The slider 24 is located inside the sliding groove 212 and forms a sliding guide engagement with the sliding groove 212. The slider 24 is slidably connected to the sleeve 21 through the sliding groove 212.
[0041] Multiple limiting rods 38 are fixed on the upper surface of the second disc 1421. The cross-section of the limiting rods 38 is T-shaped. Holes are opened on the drive plate 31. The limiting rods 38 are located in the holes. The drive plate 31 is slidably connected to the limiting rods 38 through the holes. A spring 34 is sleeved on the outer periphery of the limiting rods 38. The spring 34 is located between the second disc 1421 and the drive plate 31.
[0042] Multiple limiting plates 36 are fixed on the upper surface of the cone 142. The limiting plates 36 are C-shaped. The axial direction of the passive rod 35 is consistent with the axial direction of the limiting plate 36. The passive rod 35 is located inside the limiting plate 36 and forms a sliding guide fit with the limiting plate 36. That is, the passive rod 35 is slidably connected to the upper part of the cone 142 through the limiting plate 36.
[0043] The slider 24 has an open state and a closed state. When the slider 24 is in the open state, the slider 24 is located at the upper end of the slide groove 212, the air hole 23 and the air chamber 211 are connected to each other, the spring 34 is in the natural state, the drive plate 31 is located above the limit rod 38, the passive rod 35 extends into the middle of the screw hole 1422, and the side of the drive block 32 is in contact with one end of the passive rod 35. When the slider 24 is in the closed state, the slider 24 is located at the lower part of the slide groove 212, the air hole 23 and the air chamber 211 are disconnected, the spring 34 is in the compressed state, the drive plate 31 is located at the lower part of the limit rod 38, the end of the passive rod 35 near the screw hole 1422 abuts against one side of the bolt 1423 installed inside the screw hole 1422, and the upper part of the drive block 32 abuts against the side of the passive rod 35 away from the limit plate 37.
[0044] During the disassembly of the slag remover body 14, because bolt 1423 was still in place, the passive rod 35 was constantly pushed against one side of the drive block 32 by bolt 1423. This prevented the drive block 32 and drive plate 31 from moving upwards. During this process, the slider 24 was in a closed state, and the air chamber 211 was sealed. Therefore, the lower air pressure of the piston 221 was constant, which prevented the piston 221 from moving. Before the last bolt 1423 was removed, when the passive rod 35 was constantly pushed against one side of the drive block 32 by bolt 1423, the second disc 1421 could not move downwards. The first disc 1413 and the second disc 1421 remained in a closed state. Maintaining parallelism ensures that bolt 1423 will not experience additional resistance. This avoids the problem that when disassembling the second disc 1421, the weight of the cone 142 itself and the pulp inside would cause the side of the second disc 1421 to tilt downwards due to gravity, making it difficult to remove the last bolt 1423 from the second disc 1421. When the last bolt 1423 is removed, after the lower end of the bolt 1423 slides out of the screw hole 1422, the passive rod 35 loses the obstruction and limitation of the bolt 1423, and the spring 34 rebounds, pushing the drive plate 31 to move upward. The drive plate 31 drives the two drive blocks 32 and... When the connecting rod 33 moves upward, the driving block 32 pushes the passive rod 35 to slide into the upper part of the screw hole 1422. The slider 24 of the connecting rod 33 moves upward and is in the open state. At this time, the air hole 23 and the air chamber 211 are connected, and air can enter the air chamber 211 through the air hole 23. Since the diameter of the air hole 23 is small and fixed, the rate at which the air enters the air chamber 211 through the air hole 23 is uniform. This allows the air pressure inside the air chamber 211 to be maintained within a certain range. This keeps the sliding speed of the fixed rod 22 inside the sleeve 21 within a specific range, thereby preventing the cone cylinder 142 from sliding out of the cylinder 141 when it is separated. The problem of the cone 142 tilting due to its sudden drop after losing support is addressed by the following: When the cone 142 is cleaned and reinstalled, after the cone 142 and the cylinder 141 are aligned, when any bolt 1423 passes through the first disc 1413 and presses against the inclined surface of the passive rod 35, the passive rod 35 can be pushed away from the bolt hole 1422 by the inclined surface. The end of the passive rod 35 away from the limiting plate 37 pushes the drive block 32, the connecting rod 33 and the drive plate 31 to move downward, thereby causing the drive plate 31 to compress the spring 34 and the connecting rod 33 to push the slider 24 to move downward. The slider 24 isolates the air hole 23, thereby making the air chamber 211 a closed space again.
[0045] In the above embodiments, such as Figure 3 , Figure 5 and Figure 6As shown, when the cone 142 moves downward, the heavy impurities inside the telescopic tube 15 can generate relative movement to push the heavy impurities blocking the bottom of the cone 142 to move, but cannot clear the lower end of the cone 142. This means that when the cone 142 is removed, there is always pulp and heavy impurities inside. Even if the cone 142 is removed, it is necessary to transfer the cone 142, including the pulp and heavy impurities, to the cleaning position. During the transfer, the pulp may flow out from the inside of the cone 142 due to shaking. Moreover, the heavy mass of the cone 142 makes it inconvenient for workers to transfer it. Therefore, in order to solve this technical problem, in this embodiment, a stirring rod 16 is also included. The stirring rod 16 is movably installed inside the slag discharge pipe 13. A rotating lifting mechanism 4 for driving the stirring rod 16 to rotate and move up and down is provided in the middle of the fixing frame 1.
[0046] Specifically, such as Figure 1 , Figure 8 , Figure 9 and Figure 10 As shown, a plurality of equally spaced fixed plates 112 are provided in the middle of the fixed frame 1. The rotating lifting mechanism 4 includes a motor 41 and a motor 44 provided on the fixed plate 112 away from the fixed frame 1. A bevel gear 42 is provided at the driving end of the motor 41, and a lifting gear 45 is provided at the driving end of the motor 44. The lifting gear 45 and the stirring rod 16 mesh with each other. A bevel gear 43 is slidably connected to the lower part of the stirring rod 16. The bevel gear 43 and the bevel gear 42 mesh with each other.
[0047] It should be noted that, as Figure 9 As shown, motor 1 41 is fixedly connected to the upper part of the fixed plate 112 on the side away from the fixed frame 1, and motor 2 44 is fixedly connected to the lower part of the fixed plate 112 on the side away from the fixed frame 1.
[0048] It should be noted that, as Figure 9 As shown, the axis of the stirring rod 16 and the axis of the bevel gear 43 are collinear. The lower part of the stirring rod 16 has multiple rotating grooves 48, which are equidistantly distributed in a circular pattern around the axis of the stirring rod 16. The bevel gear 43 has multiple fixing blocks 46 inside, which are equidistantly distributed in a circular pattern around the axis of the bevel gear 43. The fixing blocks 46 are located inside the rotating grooves 48 and form a sliding guide engagement with the rotating grooves 48, that is, the fixing blocks 46 slide inside the rotating grooves 48. In other words, the bevel gear 43 is slidably connected to the stirring rod 16 through the fixing blocks 46. The lower part of the stirring rod 16 has multiple lifting grooves 47, which are collinear with the axis of the stirring rod 16. The lifting grooves 47 are equidistantly distributed around the axis of the stirring rod 16. In other words, the lifting gear 45 meshes with the stirring rod 16 through the lifting grooves 47.
[0049] It should be noted that, as Figure 8As shown, the diameter of the stirring rod 16 is smaller than the inner wall diameter of the slag discharge pipe 13, the diameter of the stirring rod 16 is smaller than the inner wall diameter of the telescopic pipe 15, and the diameter of the stirring rod 16 is smaller than the inner wall diameter of the lower end of the cone 142.
[0050] While dismantling the cone 142, start motors 41 and 44. At this time, keep valves 152 and 151 open. Motor 41 starts, driving bevel gear 42 to rotate. The rotation of bevel gear 42 drives the stirring rod 16 to rotate via multiple fixed blocks 46. Motor 44 starts, driving the lifting gear 45 to rotate. The lifting gear 45 pushes the stirring rod 16 to move. When the stirring rod 16 rotates, the lifting gear 45 slides inside the lifting groove 47. Similarly, when the stirring rod 16 slides up and down, the fixed blocks 46 slide inside the rotating groove 48. Through the combined drive of motors 41 and 44, the stirring rod 16 can achieve the effect of rotating and rising / falling simultaneously. During this combined motion, the stirring rod 16 covers the end of the slag discharge pipe 13 near the telescopic pipe 15, the telescopic pipe 15, and the narrow section of the lower part of the cone 142. The narrow section allows the pulp and heavy impurities in the narrow section of the discharge pipe 13 near the telescopic pipe 15, the telescopic pipe 15, and the lower narrow section of the cone 142 to be cleared and carried away (when the cone 142 descends and the telescopic pipe 15 retracts, the stirring rod 16 can be inserted deeper into the cone 142 to assist in clearing). The heavy impurities are discharged into the interior of the discharge pipe 13. Since the narrow section of the cone 142 is completely cleared, the pulp in the upper part of the cone 142 can flow down from the cone 142 through the channel cleared by the stirring rod 16. After all the flowable pulp and heavy impurities inside the cone 142 have flowed away, the stirring rod 16 is rotated and completely retracted into the interior of the discharge pipe 13. Then the cone 142 can be removed to avoid the problem of residual pulp and heavy impurities inside the cone 142 increasing the mass of the cone 142 and causing residual pulp and heavy impurities to overflow and spill.
[0051] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A heavy slag remover for papermaking, comprising a fixed frame and a slag remover body, wherein a slurry injection main pipe is installed on the fixed frame, a slurry outlet pipe is installed at the top of the slag remover body, a slag discharge pipe is installed at the bottom, and the slurry injection main pipe is connected to the side, characterized in that, The slag remover body includes a cylinder, a cone, and a collar. The collar is fixedly connected to the upper end of the cone. The cylinder and the cone are detachably connected. The collar is sleeved inside the cylinder and slidably connected to the cylinder. A telescopic pipe is provided between the cone and the slag discharge pipe, and the cone is detachably connected to the telescopic pipe.
2. The heavy slag remover for papermaking production according to claim 1, characterized in that, A grouting branch pipe is provided between the slag remover body and the grouting main pipe. One end of the grouting branch pipe passes through the cylinder and communicates with the inside of the cylinder.
3. A heavy slag remover for papermaking production according to claim 2, characterized in that, The lower end of the cylinder is fixedly connected to a first disc, and the upper end of the cone is fixedly connected to a second disc. The first disc and the second disc are connected by bolts.
4. A heavy slag remover for papermaking production according to claim 3, characterized in that, It also includes a buffer mechanism for slowing down the descent speed of the cone after disassembly.
5. A heavy slag remover for papermaking production according to claim 4, characterized in that, The buffer mechanism includes a sleeve, a fixed rod, and a piston. The upper end of the fixed rod is fixedly connected to the lower surface of the first disc, the piston is fixedly connected to the lower end of the fixed rod, the upper end of the sleeve is fixedly connected to the second disc, the inner wall of the sleeve has an air cavity, the piston is located inside the air cavity and is dynamically sealed to the air cavity, and the bottom outer wall of the sleeve has an air hole.
6. A heavy slag remover for papermaking production according to claim 5, characterized in that, Both ends of the passive rod have inclined surfaces. One end forms a wedge-shaped fit with the drive block through the inclined surface, and the other end forms a wedge-shaped fit with the bottom of the bolt through the inclined surface.
7. A heavy slag remover for papermaking production according to claim 6, characterized in that, The sleeve is also provided with a sliding groove, and the slider is located inside the sliding groove and forms a sliding guide engagement with the sliding groove.
8. A heavy slag remover for papermaking production according to claim 7, characterized in that, The upper surface of the second disc is fixed with multiple limiting rods, and the drive plate is slidably connected to the limiting rods.
9. A heavy slag remover for papermaking production according to claim 8, characterized in that, The upper surface of the cone is fixed with multiple limiting plates, and the passive rod is located inside the limiting plates and forms a sliding guide engagement with the limiting plates.
10. A heavy slag remover for papermaking production according to claim 9, characterized in that, It also includes a stirring rod, which is movably installed inside the slag discharge pipe, and a rotating lifting mechanism for driving the stirring rod to rotate and move up and down is provided in the middle of the fixed frame.