Heavy slag separator for paper pulp and working method of heavy slag separator

Abstract

The invention belongs to the technical field of papermaking equipment, and particularly relates to a heavy slag separator for paper pulp and a working method thereof.The heavy slag separator for the paper pulp comprises a supporting seat, a rotation control assembly is arranged at the position, close to the center of the supporting seat, of the supporting seat, and four stations are arranged above the supporting seat; comprising a fixed liquid inlet and outlet station, a stirring and rotating station, a cleaning station and a fixed pressing water inlet station, the four stations are sequentially arranged around a rotating control assembly at equal angles in the anticlockwise direction, a liquid inlet treatment assembly is arranged at the position of the fixed liquid inlet and outlet station, and a rotating adjusting assembly is arranged at the position of the stirring and rotating station. A bearing assembly is arranged at the cleaning station, a moving driving assembly is arranged at the fixed pressing water inlet station, a replacement treatment assembly is arranged above the rotating control assembly, and the problem that when heavy impurities in equipment are too many, the cleaning treatment efficiency is low is effectively solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of papermaking equipment, and specifically relates to a heavy-duty dreg remover for pulp and its working method. Background Art

[0002] A dreg remover is a device that uses the centrifugal principle to remove impurities with a density different from that of the pulp in the pulp. The upper part of the dreg remover is made of stainless steel, the lower part is injection-molded with polyurethane material, and the inner wall of the main body is designed as a spiral cone; the dreg remover can be used in various pulp purification systems, mainly removing heavy impurities such as sand and iron filings with a density greater than that of the pulp (heavy-duty dreg remover) and light impurities such as mixed adhesives, paraffin, hot melt adhesives, plastic sheets, foam, gas, and ink particles with a density less than that of the pulp (light-duty dreg remover).

[0003] In the prior art, when a heavy-duty low-concentration dreg remover is working, various impurities cause serious wear to the inner wall of the dreg remover housing and the side wall of the slag discharge port. Often, due to the wear of the inner wall, the entire housing needs to be replaced. Moreover, when discharging impurities, the slag discharge port is often damaged by impact. The damage to the slag discharge port and the wear of the inner wall are difficult to repair and often require the replacement of the entire housing, and the cost required to replace the entire housing is relatively high.

[0004] The utility model patent with the application number CN202323362270.0 discloses a heavy-duty low-concentration dreg remover for waste paper pulp, including a housing; an inner housing is fixedly connected to the upper surface of the housing; a third housing is fixedly connected to the upper surface of the inner housing; a pulp outlet is fixedly connected to the upper surface of the third housing; a pulp inlet is fixedly connected to the outer circumferential surface of the third housing; a slag discharge pipe is fixedly connected to the lower surface of the housing; a No. 5 flange is fixedly connected to the lower surface of the slag discharge pipe; a limiting ring is fixedly connected to the outer circumferential surface of the slag discharge pipe. When the inner housing needs to be replaced, rotate the first bolt to make the first nut leave the first bolt, remove the housing, move the No. 3 flange upward to make the No. 3 flange leave the first housing, and then the inner housing can be taken out from the first housing for replacement. Slide the new second housing to the inner bottom surface of the first housing through the slide bar, then place the No. 3 flange above the No. 1 flange, the fixing ring will squeeze the second housing, and then fix the No. 1 flange and the No. 3 flange through the first bolt and the first nut, realizing the rapid replacement of the inner housing and improving the work efficiency; when the slag discharge pipe needs to be replaced or cleaned, rotate the second bolt to make the second nut leave the second bolt, remove the No. 5 flange, and remove the slag discharge pipe from the first housing, then the replacement of the slag discharge pipe can be realized, improving the efficiency. However, there are still the following defects in actual production: When there are too many heavy impurities in the equipment and need to be cleaned, the equipment needs to be disassembled for cleaning and replacement, resulting in a long processing time for the equipment during cleaning, low processing efficiency, and then a long interruption time for pulp processing, thus affecting the pulp processing efficiency. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a heavy impurity remover for pulp and a working method thereof, which effectively solves the problem that when there are too many heavy impurities in the equipment, the cleaning efficiency is low, affecting subsequent work.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: A heavy-duty slag remover for pulp comprises a support seat, a rotation control assembly is arranged at a position near the center of the support seat, four workstations are arranged above the support seat, including a fixed liquid inlet and outlet station, a toggle rotation station, a cleaning station and a fixed pressing water inlet station, the four workstations are arranged in sequence at equal angles in a counterclockwise direction around the rotation control assembly, a liquid inlet processing assembly is arranged at the fixed liquid inlet and outlet station, a rotation adjustment assembly is arranged at the toggle rotation station, a receiving assembly is arranged at the cleaning station, a mobile driving assembly is arranged at the fixed pressing water inlet station, a replacement processing assembly is arranged above the rotation control assembly, the replacement processing assembly comprises a transverse rotating shaft, the transverse rotating shaft is rotatably connected to the upper part of the rotation control assembly, both ends of the transverse rotating shaft are fixedly connected to conical cylinders, and both ends of the conical cylinder are respectively provided with top sealing members and water-passing cleaning members.

[0007] The following is a further optimization of the above technical solution by the present invention: The top seal includes a second sealing plate, which is fixedly connected to the large diameter end of the conical cylinder. An annular groove is formed on the second sealing plate, in which an annular sealing gasket is slidably connected. A plurality of bottom rods are fixedly connected at equal angles to one side of the annular sealing gasket close to the small diameter end of the conical cylinder. One end of the bottom rod away from the annular sealing gasket passes through the second sealing plate and is fixedly connected to a pressure plate. A first spring is sleeved on the bottom rod.

[0008] Further optimization: the water-through cleaning part includes a bottom block fixedly installed at the small diameter end of the conical cylinder, a rod groove is opened in the bottom block, a movable rod is slidably connected to the inside of the rod groove, the outer wall of the movable rod is tightly fitted with the inner wall of the rod groove, one end of the movable rod is fixedly connected to a guide block, the guide block is located inside the conical cylinder, the end of the movable rod away from the conical cylinder is fixedly connected to an end plate, a second spring is sleeved on the movable rod, a water groove is opened inside the movable rod, the end of the water groove away from the guide block passes through the end plate, and a plurality of water holes are opened at equal angles at the position of the movable rod close to the guide block.

[0009] Further optimization: The rotation control assembly includes a longitudinal rotating shaft rotatably installed in the middle of the support base. A driven gear is fixedly connected to the bottom end of the longitudinal rotating shaft. A driving motor is fixedly installed below the support base, and the output end of the driving motor is drivingly connected with a driving gear. The driven gear is meshed with the driving gear. A clamping control member is installed at the top end of the longitudinal rotating shaft. Pressing driving members are arranged on both sides of the clamping control member, and the two pressing driving members are symmetrically arranged.

[0010] Further optimization: The clamping control member includes a fixed block fixedly installed at the top end of the longitudinal rotating shaft. A rotating groove is formed in the fixed block, and a transverse rotating shaft is rotatably installed in the rotating groove. Two clamping groove holes are symmetrically formed in the transverse rotating shaft. Two top grooves are symmetrically formed at the top end of the rotating groove, and the top grooves correspond to the clamping groove holes. Clamping rods are slidably connected in the two top grooves. A top plate is fixedly connected to the top ends of the two clamping rods. Four guide rods are fixedly installed on the top surface of the fixed block. The top plate is slidably connected with the guide rods, and a third spring is sleeved on the guide rods.

[0011] Further optimization: The pressing driving member includes a cross platform fixedly connected to the fixed block. Two support plates are symmetrically fixedly connected to the top surface of the cross platform. A fixed shaft is fixedly connected between the two support plates. A rotating sleeve is rotatably connected to the fixed shaft. A pressure-receiving rod is installed on one side of the rotating sleeve close to the top plate, and a pressing rod is installed on the other side of the rotating sleeve away from the top plate. Two torsion springs are sleeved on the fixed shaft. One end of the torsion spring is fixedly connected to the rotating sleeve, and the other end is fixedly connected to the corresponding support plate.

[0012] Further optimization: The moving driving assembly includes a sliding frame fixedly connected to the top surface of the support base. A longitudinal moving arm is slidably connected to the sliding frame. A push rod is fixedly connected to the bottom surface of one end of the longitudinal moving arm close to the top plate. A screw rod is rotatably installed inside the sliding frame. The longitudinal moving arm is threadedly connected with the screw rod. A rotating motor is fixedly installed at the top end of the sliding frame, and the output end of the rotating motor is drivingly connected with the screw rod. A positioning water inlet member is arranged on one side of the longitudinal moving arm close to the receiving box. The positioning water inlet member includes a side plate fixedly connected to one side of the longitudinal moving arm. A water inlet pipe is installed on the side plate. Two positioning rods are symmetrically installed on the bottom surface of the side plate. The receiving assembly includes a receiving box fixedly connected to the top surface of the support base.

[0013] Further optimization: The liquid inlet processing assembly includes a liquid inlet cylinder fixedly installed above the support base. A liquid inlet pipe is fixedly installed on the outer wall of the liquid inlet cylinder along the tangential direction. An outlet pipe is fixedly installed at the top end of the liquid inlet cylinder. A first sealing plate is fixedly installed at the bottom end of the liquid inlet cylinder.

[0014] Further optimization: The rotation adjustment assembly includes a second fixing frame fixedly connected to the top surface of the support base. A limiting stop rod is fixedly connected to one side of the top end of the second fixing frame close to the longitudinal rotating shaft. The height position of the limiting stop rod is lower than that of the transverse rotating shaft.

[0015] Further optimization: The present invention also discloses a working method of a heavy-duty slag remover for pulp. Based on the above-mentioned heavy-duty slag remover for pulp, the working method includes the following steps: S1. Heavy-duty slag removal: The pulp enters the inlet cylinder along the tangential direction of the inner wall of the inlet cylinder in the reverse direction. The pulp spirally flows inside the inlet cylinder and the conical cylinder, and the fibers and heavy substances are separated under the action of centrifugal force and gravity. The heavy substances remain in the conical cylinder, and the good pulp is discharged from the outlet pipe. S2. Conversion: Stop injecting the pulp, drive the longitudinal rotating shaft to rotate, and replace the working positions of the two conical cylinders. During the rotation, under the action of the limit stop rod, both conical cylinders are turned over up and down. S3. Fixing and sealing: After the working positions and the up and down directions of the two conical cylinders are changed, the longitudinal moving arm moves downward, pushing the clamping rod downward to be clamped into the card slot hole, fixing the two conical cylinders. At the same time, pushing the pressing rod to swing upward, pressing the annular sealing gasket against the first sealing plate for sealing. S4. Cleaning: The longitudinal moving arm moves downward, so that the water inlet pipe is docked with the water through-flow tank, and the inverted conical cylinder is flushed with water.

[0016] Beneficial effects: By arranging conical cylinders at both ends of the transverse rotating shaft and the two conical cylinders having opposite directions, while one upright conical cylinder is located below the inlet cylinder for slag removal work, the other conical cylinder is inverted above the receiving box for cleaning work, which simplifies the replacement steps of slag removal and cleaning and improves the working efficiency. When the conical cylinder is upright, the upper part of the movable rod is completely located inside the rod slot under the action of elastic force, so that the water through-hole is closed, thereby effectively blocking the rod slot, which is convenient for the conical cylinder to perform slag removal work. After the conical cylinder is inverted, the movable rod moves downward under force, so that the water through-hole enters the conical cylinder. At the same time, the longitudinal moving arm moves downward to dock the water inlet pipe with the water through-flow tank, which is convenient for flushing water into the conical cylinder. When the longitudinal moving arm moves downward, it pushes the top plate downward, so that the clamping rod is clamped into the card slot hole on the transverse rotating shaft, clamping and fixing the two conical cylinders, improving the stability of slag removal and cleaning. At the same time, the top plate generates pressure on the compression rod, pushing the pressing rod to swing upward, so that the annular sealing gasket is pressed against the first sealing plate at the bottom of the inlet cylinder for sealing, improving the sealing effect during slag removal work.

[0017] The present invention will be further described below with reference to the drawings and embodiments. Description of the drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the structure of the replacement processing component in an embodiment of the present invention; Figure 3 Schematic diagram of the structure of the top seal in the embodiment of the present invention; Figure 4 Schematic diagram of the structure of the water-passing cleaning part in the embodiment of the present invention; Figure 5 Schematic diagram of the internal structure of the movable rod in the embodiment of the present invention; Figure 6 Schematic diagram of the structure of the moving drive assembly in the embodiment of the present invention; Figure 7 Schematic diagram of the structure of the clamping control part in the embodiment of the present invention; Figure 8 Schematic diagram of the structure of the pressing drive part in the embodiment of the present invention.

[0019] In the figure: 1 - support base; 2 - liquid inlet treatment assembly; 201 - liquid inlet cylinder; 202 - liquid inlet pipe; 203 - liquid outlet pipe; 204 - first sealing plate; 3 - replacement treatment assembly; 301 - horizontal rotating shaft; 302 - conical cylinder; 303 - top seal; 3031 - second sealing plate; 3032 - annular groove; 3033 - annular sealing gasket; 3034 - bottom rod; 3035 - pressing plate; 3036 - first spring; 304 - water-passing cleaning part; 3041 - bottom block; 3042 - rod groove; 3043 - movable rod; 3044 - end plate; 3045 - second spring; 3046 - water passage groove; 3047 - water passing hole; 3048 - guiding block; 305 - clamping groove hole; 4 - rotation control assembly; 401 - vertical rotating shaft; 402 - driven gear; 403 - driving gear; 404 - driving motor; 405 - clamping control part; 4051 - fixed block; 4052 - rotating groove; 4053 - top groove; 4054 - clamping rod; 4055 - top plate; 4056 - guiding rod; 4057 - third spring; 406 - pressing drive part; 4061 - cross table; 4062 - support plate; 4063 - fixed shaft; 4064 - rotating sleeve; 4065 - pressed rod; 4066 - pressing rod; 4067 - torsion spring; 5 - moving drive assembly; 501 - sliding frame; 502 - longitudinal moving arm; 503 - screw rod; 504 - rotating motor; 505 - push rod; 506 - side plate; 507 - positioning rod; 508 - water inlet pipe; 7 - receiving box; 8 - rotation adjustment assembly; 801 - second fixing frame; 802 - limiting stop rod. Detailed implementation manners

[0020] As Figure 1-8 shown, a heavy-duty pulp rejector for pulp includes a support base 1, and a rotation control assembly 4 is arranged at a position close to the center of the support base 1.

[0021] Above the support base 1, there are four workstations, including a fixed liquid inlet / outlet workstation, a toggle rotation workstation, a cleaning workstation, and a fixed pressing water inlet workstation. The four workstations are arranged on the support base 1 at equal angles in a counterclockwise direction around the rotation control component 4.

[0022] Above the rotation control component 4, there is a replacement processing component 3.

[0023] The replacement processing component 3 includes a horizontal rotating shaft 301. The horizontal rotating shaft 301 is rotatably connected to the upper part of the rotation control component 4. At both ends of the horizontal rotating shaft 301, there are fixedly connected conical cylinders 302. The two conical cylinders 302 are replaced with each other for slag removal.

[0024] At both ends of the conical cylinder 302, there are respectively a top seal 303 and a water-passing cleaning part 304.

[0025] Two card slots 305 are symmetrically opened inside the horizontal rotating shaft 301.

[0026] With such a design, at both ends of the horizontal rotating shaft 301, there are conical cylinders 302, and the directions of the upper and lower openings of the two conical cylinders 302 are opposite. When one conical cylinder 302 is placed upright for slag removal work, the other conical cylinder 302 is placed upside down for cleaning work, which simplifies the replacement steps of slag removal and cleaning and improves work efficiency.

[0027] The top seal 303 includes a second sealing plate 3031. The second sealing plate 3031 is fixedly connected to the large-diameter end of the conical cylinder 302. An annular groove 3032 is opened on the second sealing plate 3031. An annular sealing gasket 3033 is slidably connected inside the annular groove 3032. On the side of the annular sealing gasket 3033 close to the small-diameter end of the conical cylinder 302, a plurality of bottom rods 3034 are fixedly connected at equal angles. The end of the bottom rod 3034 far from the annular sealing gasket 3033 penetrates through the second sealing plate 3031 and is fixedly connected with a pressing plate 3035. A first spring 3036 is sleeved on the bottom rod 3034. The two ends of the first spring 3036 are respectively fixedly connected to the second sealing plate 3031 and the pressing plate 3035.

[0028] The water-passing cleaning part 304 includes a bottom block 3041 fixedly installed at the small-diameter end of the conical cylinder 302. A rod groove 3042 is opened inside the bottom block 3041. An activity rod 3043 is slidably connected inside the rod groove 3042. The outer wall of the activity rod 3043 is in close fit with the inner wall of the rod groove 3042.

[0029] One end of the movable rod 3043 is fixedly connected with a guiding block 3048. The guiding block 3048 is located inside the conical cylinder 302. The diameter of the end of the guiding block 3048 away from the movable rod 3043 is larger than that of the end of the guiding block 3048 close to the movable rod 3043. One end of the movable rod 3043 away from the conical cylinder 302 is fixedly connected with an end plate 3044. A second spring 3045 is sleeved on the movable rod 3043. Two ends of the second spring 3045 are respectively fixedly connected with the bottom block 3041 and the end plate 3044.

[0030] A water through-channel 3046 is arranged inside the movable rod 3043. One end of the water through-channel 3046 away from the guiding block 3048 penetrates through the end plate 3044. A plurality of water through-holes 3047 are equiangularly arranged at the position of the movable rod 3043 close to the guiding block 3048. The water through-holes 3047 are communicated with the water through-channel 3046.

[0031] The rotation control assembly 4 includes a longitudinal rotating shaft 401. The longitudinal rotating shaft 401 is rotatably installed at the middle position of the support base 1. A driven gear 402 is fixedly connected to the bottom end of the longitudinal rotating shaft 401. A driving motor 404 is fixedly installed below the support base 1. The output end of the driving motor 404 is in transmission connection with a driving gear 403. The driven gear 402 is meshed with the driving gear 403.

[0032] A clamping control part 405 is installed at the top end of the longitudinal rotating shaft 401. The clamping control part 405 is used for installing and replacing the processing assembly 3.

[0033] The clamping control part 405 includes a fixing block 4051. The fixing block 4051 is fixedly installed at the top end of the longitudinal rotating shaft 401. A rotating groove 4052 is arranged inside the fixing block 4051. A transverse rotating shaft 301 is rotatably installed in the rotating groove 4052. Two top grooves 4053 are symmetrically arranged at the top end of the rotating groove 4052. The two top grooves 4053 are respectively arranged corresponding to the two clamping groove holes 305.

[0034] Two clamping rods 4054 are slidably connected inside the two top grooves 4053. The top ends of the two clamping rods 4054 are jointly fixedly connected with a top plate 4055. Four guiding rods 4056 are fixedly installed on the top surface of the fixing block 4051. The top plate 4055 is slidably connected with the guiding rods 4056. A third spring 4057 is sleeved on the guiding rods 4056. Two ends of the third spring 4057 are respectively fixedly connected with the fixing block 4051 and the top plate 4055.

[0035] Pressing driving parts 406 are arranged on both sides of the fixing block 4051. The two pressing driving parts 406 are symmetrically arranged.

[0036] The clamping drive member 406 includes a horizontal table 4061, which is fixedly connected to the fixed block 4051, and two support plates 4062 are symmetrically fixedly connected to the top surface of the horizontal table 4061, and a fixed shaft 4063 is fixedly connected between the two support plates 4062, and a rotating sleeve 4064 is rotatably connected to the fixed shaft 4063, and a pressure rod 4065 is installed on the side of the rotating sleeve 4064 close to the top plate 4055, and the end of the pressure rod 4065 away from the rotating sleeve 4064 is located below the top plate 4055, and a pressing rod 4066 is installed on the side of the rotating sleeve 4064 away from the top plate 4055, and the end of the pressing rod 4066 away from the rotating sleeve 4064 is located below the pressure plate 3035.

[0037] Two torsion springs 4067 are sleeved on the fixed shaft 4063 , one end of the torsion spring 4067 is fixedly connected to the rotating sleeve 4064 , and the other end is fixedly connected to the corresponding support plate 4062 .

[0038] This design pushes the top plate 4055 to move downward, so that the clamping rod 4054 is inserted into the clamping slot hole 305 on the horizontal rotating shaft 301, and then the conical cylinder 302 at both ends of the horizontal rotating shaft 301 is fixed, thereby improving the stability of slag removal and cleaning. At the same time, the top plate 4055 generates pressure on the pressure rod 4065, pushing the pressure rod 4066 to swing upward, so that the annular sealing gasket 3033 is pressed and sealed with the liquid inlet processing component 2, thereby improving the sealing effect of slag removal.

[0039] A liquid inlet processing assembly 2 is provided at the fixed liquid inlet and outlet station, and the liquid inlet processing assembly 2 and the conical cylinder 302 are combined together to form a slag removal component.

[0040] The liquid inlet processing component 2 includes a liquid inlet cylinder 201, which is fixedly installed above the support seat 1 through a first fixed frame. The liquid inlet cylinder 201 is fixedly installed with a liquid inlet pipe 202 along the tangent direction of the outer wall, the top of the liquid inlet cylinder 201 is fixedly installed with a liquid outlet pipe 203, and the bottom of the liquid inlet cylinder 201 is fixedly installed with a first sealing plate 204.

[0041] A rotation adjustment assembly 8 is provided at the turning and rotating station for turning the conical cylinder 302 .

[0042] The rotation adjustment assembly 8 includes a second fixing frame 801 , which is fixed to the top surface of the support seat 1 . A limit stopper 802 is fixed to the top of the second fixing frame 801 near the longitudinal rotation axis 401 . The limit stopper 802 is lower than the transverse rotation axis 301 .

[0043] A receiving component is arranged at the cleaning station.

[0044] The receiving assembly comprises a receiving box 7 , and the receiving box 7 is fixedly connected to the top surface of the supporting seat 1 .

[0045] A moving drive assembly 5 is provided at the position of the fixed pressing water inlet station.

[0046] The moving drive assembly 5 includes a sliding frame 501, the sliding frame 501 is fixedly connected to the top surface of the support base 1, a longitudinal moving arm 502 is slidably connected to the sliding frame 501, and a push rod 505 is fixedly connected to the bottom surface of the longitudinal moving arm 502 near one end of the top plate 4055.

[0047] A screw rod 503 is rotatably installed inside the sliding frame 501, the longitudinal moving arm 502 is threadedly connected to the screw rod 503, a rotating motor 504 is fixedly installed at the top end of the sliding frame 501, and the output end of the rotating motor 504 is in transmission connection with the screw rod 503.

[0048] A positioning water inlet member is provided on one side of the longitudinal moving arm 502 close to the receiving box 7. When the cleaning station is working, the inverted conical cylinder 302 is located below the positioning water inlet member, and the positioning water inlet member, the conical cylinder 302 and the receiving box 7 together form a cleaning component.

[0049] The positioning water inlet member includes a side plate 506 fixedly connected to one side of the longitudinal moving arm 502, a water inlet pipe 508 is installed on the side plate 506, and two positioning rods 507 are symmetrically installed on the bottom surface of the side plate 506.

[0050] With this design, when the conical cylinder 302 is upright, the upper part of the movable rod 3043 is completely located inside the rod groove 3042 under the action of the spring force, so that the water passing hole 3047 is closed, which is convenient for the conical cylinder 302 to perform slag removal work; when the conical cylinder 302 is inverted, the water inlet pipe 508 pushes the movable rod 3043 downward, so that the water passing hole 3047 enters the inside of the conical cylinder 302. At the same time, the water inlet pipe 508 is communicated with the water passing groove 3046, which is convenient for flushing water into the conical cylinder 302.

[0051] During operation, connect the liquid inlet pipe 202 to the output end of the feed box, connect the liquid outlet pipe 203 to the input end of the discharge box, and feed the pulp to be processed into the liquid inlet cylinder 201 along the tangential direction of the inner wall of the liquid inlet cylinder 201 from the liquid inlet pipe 202. The pulp enters the liquid inlet cylinder 201 from the liquid inlet pipe 202 with a certain pressure and speed, which can make the pulp form a high-speed rotating eddy current after entering the liquid inlet cylinder 201, providing power for subsequent impurity separation. Under the action of the eddy current, due to the influence of centrifugal force, the heavy impurities are thrown to the inner wall of the liquid inlet cylinder 201, while the light fibers gather towards the central area, initially realizing the separation of fibers and heavy impurities.

[0052] Then the pulp flows downward in the conical cylinder 302. As the rotation radius gradually decreases, the centrifugal force further increases, making the separation effect of heavy impurities and fibers more obvious. The taper design of the conical cylinder 302 will affect the flow velocity of the pulp and the distribution of the centrifugal force, thereby affecting the slag removal effect. After separation, the good pulp of the fiber pulp located at the center of the eddy current flows upward and is discharged from the liquid outlet pipe 203 and enters the subsequent papermaking process. Finally, the heavy impurities remain in the conical cylinder 302 under the action of the centrifugal force and gravity.

[0053] When there are too many heavy impurities in the conical cylinder 302 below the liquid inlet cylinder 201, which affects the separation of fibers and heavy impurities, the staff needs to suspend the feeding of the pulp, and then start the rotating motor 504 to drive the screw 503 to rotate. The longitudinal moving arm 502 moves upward to drive the push rod 505 to move upward. The top plate 4055 drives the clamping rod 4054 to move upward under the elastic force of the third spring 4057 and disengages from the clamping groove hole 305. Synchronously, the side plate 506 moves upward, and the water inlet pipe 508 is disengaged from the water trough 3046 on the inverted conical cylinder 302; the pressing rod 4066 below the liquid inlet cylinder 201 no longer presses the pressing plate 3035 installed on the upright conical cylinder 302.

[0054] Then start the driving motor 404 to drive the longitudinal rotating shaft 401 to rotate counterclockwise, thereby driving the two conical cylinders 302 to exchange positions between the fixed liquid inlet and outlet positions and the cleaning position. After the upright conical cylinder 302 contacts the limit stop rod 802, under the limiting action of the limit stop rod 802, the upright conical cylinder 302 is turned over to an inverted state, and drives the other conical cylinder 302 to turn over to an upright state through the transverse rotating shaft 301. After the transverse rotating shaft 301 rotates horizontally by 180°, the driving motor 404 stops, and the two conical cylinders 302 stop below the liquid inlet cylinder 201 and above the receiving box 7 respectively.

[0055] Then start the rotating motor 504 to drive the longitudinal moving arm 502 to move downward, position the inverted conical cylinder 302 through the two symmetrically arranged positioning rods 507, reduce the swing of the conical cylinder 302, and at the same time dock the water inlet pipe 508 and the water trough 3046, and push the movable rod 3043 downward, so that the water through hole 3047 enters the inside of the conical cylinder 302. The top end of the water inlet pipe 508 is connected to the water tank through a hose. Open the water pump of the water tank. Water is introduced from the water inlet pipe 508 and sprayed out from the water through hole 3047, and under the guidance of the guiding block 3048, it flushes on the inner wall of the conical cylinder 302, and flushes the heavy impurities on the inner wall of the conical cylinder 302 into the receiving box 7 to complete the cleaning work.

[0056] While the longitudinal moving arm 502 moves downward, it pushes the clamping rod 4054 to move downward, so that the clamping rod 4054 is clamped into the clamping groove hole 305 in the transverse rotating shaft 301 to fix and position the two conical cylinders 302. At the same time, the top plate 4055 moves downward to generate a downward pressure on the pressure receiving rod 4065, driving the rotating sleeve 4064 to rotate, so that the pressing rod 4066 swings upward, generating an upward pressure on the pressing plate 3035 on the conical cylinder 302 below the liquid inlet cylinder 201. The pressing plate 3035 moves upward against the spring force and drives the annular sealing gasket 3033 to move upward, so that the annular sealing gasket 3033 presses and seals the first sealing plate 204 at the bottom end of the liquid inlet cylinder 201, improving the sealing effect during slag removal.

[0057] The present invention also discloses a working method of a heavy-duty slag remover for pulp. Based on the above-mentioned heavy-duty slag remover for pulp, the working method includes the following steps: S1. Heavy-duty slag removal: The pulp enters the liquid inlet cylinder 201 along the reverse tangent of the inner wall of the liquid inlet cylinder 202. The pulp spirally flows inside the liquid inlet cylinder 201 and the conical cylinder 302, and the fibers and heavy substances are separated under the action of centrifugal force and gravity. The heavy substances remain in the conical cylinder 302, and the good pulp is discharged from the liquid outlet pipe 203. S2. Conversion: Stop injecting the pulp, drive the longitudinal rotating shaft 401 to rotate, and replace the working positions of the two conical cylinders 302. During the rotation process, under the action of the limit stop rod 802, the two conical cylinders 302 are both turned over up and down. S3. Fixing and sealing: After the working positions and the up and down directions of the two conical cylinders 302 are changed, the longitudinal moving arm 502 moves downward, pushing the clamping rod 4054 to move downward and be clamped into the clamping groove hole 305 to fix the two conical cylinders 302. At the same time, it pushes the pressing rod 4066 to swing upward, pressing and sealing the annular sealing gasket 3033 and the first sealing plate 204. S4. Cleaning: The longitudinal moving arm 502 moves downward, so that the water inlet pipe 508 is docked with the water passing groove 3046 to wash the inverted conical cylinder 302 with water.

[0058] For those of ordinary skill in the art, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, the changes, modifications, substitutions, and variations made to the embodiments still fall within the protection scope of the present invention.

Claims

1. A heavy-duty pulp cleaner for pulp, comprising a support base (1), characterized in that: A rotation control assembly (4) is arranged near the center of the support seat (1), and four workstations are arranged above the support seat (1), including a fixed liquid inlet and outlet workstation, a toggle rotation workstation, a cleaning workstation and a fixed pressing water inlet workstation. The four workstations are arranged in sequence at equal angles in a counterclockwise direction around the rotation control assembly (4). A liquid inlet processing assembly (2) is arranged at the fixed liquid inlet and outlet workstation, a rotation adjustment assembly (8) is arranged at the toggle rotation workstation, a receiving assembly is arranged at the cleaning workstation, and a mobile driving assembly (5) is arranged at the fixed pressing water inlet workstation. A replacement processing assembly (3) is arranged above the rotation control assembly (4), and the replacement processing assembly (3) includes a transverse rotation shaft (301), the transverse rotation shaft (301) is rotatably connected to the upper part of the rotation control assembly (4), and both ends of the transverse rotation shaft (301) are fixedly connected to a conical cylinder (302), and both ends of the conical cylinder (302) are respectively provided with a top sealing member (303) and a water-passing cleaning member (304).

2. The heavy-duty dross remover for pulp according to claim 1, wherein: The top seal (303) comprises a second sealing plate (3031), the second sealing plate (3031) being fixedly connected to the large diameter end of the conical cylinder (302), an annular groove (3032) being provided on the second sealing plate (3031), an annular sealing gasket (3033) being slidably connected in the annular groove (3032), a plurality of bottom rods (3034) being fixedly connected at equal angles to one side of the annular sealing gasket (3033) close to the small diameter end of the conical cylinder (302), one end of the bottom rod (3034) away from the annular sealing gasket (3033) passing through the second sealing plate (3031) and being fixedly connected to a pressing plate (3035), and a first spring (3036) being sleeved on the bottom rod (3034).

3. The heavy-duty dross remover for pulp according to claim 2, wherein: The water-passing cleaning member (304) comprises a bottom block (3041) fixedly mounted on one end of the conical cylinder (302) with a small diameter, a rod groove (3042) being provided in the bottom block (3041), a movable rod (3043) being slidably connected inside the rod groove (3042), an outer wall of the movable rod (3043) being tightly fitted with an inner wall of the rod groove (3042), a guide block (3048) being fixedly connected to one end of the movable rod (3043), and the guide block (3048) being located at the conical cylinder (302). Inside, one end of the movable rod (3043) away from the conical cylinder (302) is fixedly connected to an end plate (3044), a second spring (3045) is sleeved on the movable rod (3043), a water groove (3046) is provided inside the movable rod (3043), one end of the water groove (3046) away from the guide block (3048) passes through the end plate (3044), and a plurality of water holes (3047) are provided at equal angles at a position of the movable rod (3043) close to the guide block (3048).

4. A heavy-duty pulp rejector according to claim 3, characterized in that: The rotation control assembly (4) includes a longitudinal rotating shaft (401). The longitudinal rotating shaft (401) is rotatably installed at the middle position of the support base (1). A driven gear (402) is fixedly connected to the bottom end of the longitudinal rotating shaft (401). A driving motor (404) is fixedly installed below the support base (1). The output end of the driving motor (404) is drivingly connected with a driving gear (403). The driven gear (402) is meshed and connected with the driving gear (403). A clamping control member (405) is installed at the top end of the longitudinal rotating shaft (401). Pressing driving members (406) are arranged on both sides of the clamping control member (405), and the two pressing driving members (406) are symmetrically arranged.

5. The heavy-duty pulp cleaner according to claim 4, characterized in that: The clamping control member (405) includes a fixed block (4051). The fixed block (4051) is fixedly installed at the top end of the longitudinal rotating shaft (401). A rotating groove (4052) is formed in the fixed block (4051). A transverse rotating shaft (301) is rotatably installed in the rotating groove (4052). Two clamping groove holes (305) are symmetrically formed in the transverse rotating shaft (301). Two top grooves (4053) are symmetrically formed at the top end of the rotating groove (4052). The top grooves (4053) are correspondingly arranged with the clamping groove holes (305). Clamping rods (4054) are slidably connected in the two top grooves (4053). A top plate (4055) is fixedly connected to the top ends of the two clamping rods (4054). Four guiding rods (4056) are fixedly installed on the top surface of the fixed block (4051). The top plate (4055) is slidably connected with the guiding rods (4056). A third spring (4057) is sleeved on the guiding rods (4056).

6. The heavy-duty dross remover for pulp according to claim 5, wherein: The pressing driving member (406) includes a cross platform (4061). The cross platform (4061) is fixedly connected with the fixed block (4051). Two support plates (4062) are symmetrically fixedly connected to the top surface of the cross platform (4061). A fixed shaft (4063) is fixedly connected between the two support plates (4062). A rotating sleeve (4064) is rotatably connected to the fixed shaft (4063). A pressure-receiving rod (4065) is installed on one side of the rotating sleeve (4064) close to the top plate (4055). A pressing rod (4066) is installed on the other side of the rotating sleeve (4064) away from the top plate (4055). Two torsion springs (4067) are sleeved on the fixed shaft (4063). One end of the torsion spring (4067) is fixedly connected with the rotating sleeve (4064), and the other end is fixedly connected with the corresponding support plate (4062).

7. A heavy-duty pulp cleaner according to claim 6, characterized in that: The mobile drive assembly (5) includes a sliding carriage (501) fixedly connected to the top surface of the support base (1). A longitudinal moving arm (502) is slidably connected to the sliding carriage (501). A push rod (505) is fixedly connected to the bottom surface of the longitudinal moving arm (502) near one end of the top plate (4055). A screw rod (503) is rotatably installed inside the sliding carriage (501). The longitudinal moving arm (502) is threadedly connected to the screw rod (503). A rotating motor (504) is fixedly installed at the top end of the sliding carriage (501). The output end of the rotating motor (504) is drivingly connected to the screw rod (503). A positioning water inlet member is provided on the side of the longitudinal moving arm (502) close to the receiving box (7). The positioning water inlet member includes a side plate (506) fixedly connected to one side of the longitudinal moving arm (502). A water inlet pipe (508) is installed on the side plate (506). Two positioning rods (507) are symmetrically installed on the bottom surface of the side plate (506). The receiving assembly includes a receiving box (7) fixedly connected to the top surface of the support base (1).

8. A heavy-duty pulp cleaner according to claim 7, characterized in that: The liquid inlet treatment assembly (2) includes a liquid inlet cylinder (201) fixedly installed above the support base (1). A liquid inlet pipe (202) is fixedly installed along the tangential direction of the outer wall of the liquid inlet cylinder (201). An outlet pipe (203) is fixedly installed at the top end of the liquid inlet cylinder (201). A first sealing plate (204) is fixedly installed at the bottom end of the liquid inlet cylinder (201).

9. A heavy-duty pulp rejector according to claim 8, characterized in that: The rotation adjustment assembly (8) includes a second fixing frame (801) fixedly connected to the top surface of the support base (1). A limiting stop rod (802) is fixedly connected to the top end of the second fixing frame (801) near one side of the longitudinal rotating shaft (401). The height position of the limiting stop rod (802) is lower than that of the transverse rotating shaft (301).

10. A working method of a heavy-duty pulp rejector, based on the heavy-duty pulp rejector described in claim 9, characterized in that: It includes the following steps: S1. Heavy slag removal: The pulp enters the liquid inlet cylinder (201) from the liquid inlet pipe (202) along the reverse tangential direction of the inner wall of the liquid inlet cylinder (201). The pulp spirally flows inside the liquid inlet cylinder (201) and the conical cylinder (302). Under the action of centrifugal force and gravity, the fibers and heavy substances are separated. The heavy substances remain in the conical cylinder (302), and the good pulp is discharged from the outlet pipe (203). S2. Conversion: Stop injecting the pulp, drive the longitudinal rotating shaft (401) to rotate, and change the working positions of the two conical cylinders (302). During the rotation, under the action of the limiting stop rod (802), both conical cylinders (302) are turned over up and down. S3. Fixing and sealing: After the working positions and up-down directions of the two conical cylinders (302) are changed, the longitudinal moving arm (502) moves downward, pushing the clamping rod (4054) downward to be clamped into the clamping groove hole (305) to fix the two conical cylinders (302). At the same time, the pressing rod (4066) is pushed to swing upward, pressing the annular sealing gasket (3033) against the first sealing plate (204) for sealing. S4. Cleaning: The longitudinal moving arm (502) moves downward, so that the water inlet pipe (508) is docked with the water through groove (3046) to flush the inverted conical cylinder (302) with water.

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