CN115976870B - A pulp removal system for papermaking - Google Patents
A pulp removal system for papermaking Download PDFInfo
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- CN115976870B CN115976870B CN202211668631.1A CN202211668631A CN115976870B CN 115976870 B CN115976870 B CN 115976870B CN 202211668631 A CN202211668631 A CN 202211668631A CN 115976870 B CN115976870 B CN 115976870B
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- screen cylinder
- pulp
- shell
- spray head
- transmission disc
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- 239000007921 spray Substances 0.000 claims abstract description 74
- 238000012216 screening Methods 0.000 claims abstract description 43
- 239000002893 slag Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 35
- 230000007704 transition Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims 2
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 24
- 239000012535 impurity Substances 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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Abstract
The application relates to the technical field of deslagging systems, in particular to a paper pulp deslagging system for papermaking, which comprises a fine screening machine, a reverse deslagging device, a mounting seat, a driving piece, a spray pipe and a spray nozzle, wherein the fine screening machine comprises a shell, a screen cylinder and a fine screening rotor, and the driving piece is used for driving the fine screening rotor to rotate; the shell is provided with a pulp inlet, a pulp outlet and a slag discharging port, the spray head is arranged in the shell in a sliding way along the axial direction of the screen cylinder, one end of the spray pipe is connected with the spray head, the other end of the spray pipe extends out of the shell and is used for being communicated with the water pump, the spray head is used for spraying water to the screen cylinder, and the screen cylinder is arranged in the shell in a rotating way around the axis of the screen cylinder. According to the application, the spray head axially slides along the screen cylinder and washes the screen cylinder, and is combined with the rotation of the screen cylinder, so that water sprayed by the spray head can keep a large impact force, impurities in a gap of the screen cylinder can be cleaned conveniently, the screening efficiency of a fine screening machine is improved, and after screening heavy slag, the screening machine removes light slag through a reverse slag remover, so that the pulp purity is improved, and the production quality of pulp is improved.
Description
Technical Field
The application relates to the technical field of deslagging systems, in particular to a paper pulp deslagging system for papermaking.
Background
In the industrial papermaking process, deslagging of paper pulp is an extremely important tool, and impurities in the paper pulp are removed through deslagging, so that the purity of the paper pulp is improved, and the quality of the paper pulp is improved. At present, when deslagging is carried out on paper pulp, the paper pulp is firstly fed into a fine screening machine for screening, and the screened paper pulp flows into a reverse deslagging device for secondary screening, so that the purity of the paper pulp is further improved.
The fine screening machine mainly comprises a shell, a screen cylinder and a rotor, wherein the screen cylinder and the rotor are arranged in the shell, a plurality of gaps for paper pulp to pass through are formed in the screen cylinder, the screen cylinder is used for intercepting impurities, the rotor is arranged on the inner periphery of the screen cylinder, and the paper pulp in the shell is driven to centrifugally screen through rotation of the rotor, but the impurities are different in size, and some impurities are easily embedded into the gaps of the screen cylinder, so that screen cylinder blockage is generated, and screening efficiency of the fine screening machine is affected.
The upper end of the shell is detachably connected with the top cover, when people need to clean the screen cylinder, the top cover is opened, the screen cylinder can be taken out for flushing, but the screen cylinder is inconvenient to take out, people can spray the screen cylinder to flush by taking the spray head communicated with the water pipe, but because the size of the fine screening machine is larger, when the spray head is far away from the screen cylinder, the water impact force sprayed by the spray head is gradually reduced, impurities embedded in the gap of the screen cylinder can not be flushed out, and the screening efficiency of the fine screening machine is not improved.
Disclosure of Invention
In order to facilitate the cleaning of impurities embedded in a screen cylinder gap so as to improve the screening efficiency of a fine screening machine, the application provides a paper pulp deslagging system for papermaking.
The application provides a paper pulp deslagging system for papermaking, which adopts the following technical scheme:
The pulp deslagging system for the papermaking comprises a fine screening machine, a reverse deslagging device, a mounting seat, a driving piece, a spray pipe and a spray head, wherein the fine screening machine comprises a shell, a screen cylinder and a fine screening rotor, the fine screening rotor is connected to the mounting seat, the fine screening rotor is arranged on the inner periphery of the screen cylinder, the driving piece is used for driving the fine screening rotor to rotate, the shell is provided with a pulp inlet, a pulp outlet and a deslagging port, the pulp inlet is communicated with the inside of the screen cylinder, the pulp outlet is communicated with an inlet of the reverse deslagging device, the pulp outlet is higher than the pulp inlet, the pulp inlet is higher than the deslagging port, the spray head is arranged in the shell in a sliding mode along the axial direction of the screen cylinder, one end of the spray pipe is connected to the spray head, the other end of the spray pipe extends out of the shell and is used for being communicated with a water pump, and the spray head is used for spraying water to the screen cylinder, and the screen cylinder is rotationally arranged in the shell around the axis.
Through the technical scheme, the driving piece drives the fine screen rotor to rotate, when paper pulp enters the screen cylinder from the pulp inlet, the paper pulp rotates under the action of the fine screen rotor and generates centrifugal force, so that the paper pulp flows into the pulp outlet from a gap arranged on the screen cylinder, heavy slag falls into a slag outlet with a lower position based on self gravity, the paper pulp screened by the screen cylinder flows into the reverse slag remover so as to remove light impurities through the reverse slag remover, thereby improving the purity of the paper pulp, improving the production quality of the paper pulp, and when people need to clean the screen cylinder, the spray head axially slides along the screen cylinder and washes the screen cylinder, and the screen cylinder is combined with the rotation of the screen cylinder, so that a stable interval can be kept between the spray head and a place where the screen cylinder is washed by the spray head, and the water flow impact force is small due to the fact that a larger interval exists between the spray head and the place where the screen cylinder is washed is avoided, so that the water sprayed out of the spray head can keep a larger impact force, thereby improving the screening efficiency of the fine screen.
Preferably, the spray head is located between the screen cylinder and the inner wall of the housing, the spray head being oriented perpendicular to the axial direction of the screen cylinder.
Through adopting above-mentioned technical scheme, because paper pulp is from in the screen cylinder to outside the screen cylinder and along the pulp outlet outflow, if impurity inlays in the clearance, then wash out with the embedded impurity in screen cylinder clearance through back flush in order to be convenient for wash the screen cylinder, improve clean efficiency.
Preferably, the driving piece comprises a driving motor, a transmission disc and a propping spring, wherein the driving motor is fixedly connected to the mounting seat, a motor shaft of the driving motor is connected to the transmission disc in a key manner, the periphery of a motor shaft is used for being in sliding butt joint with the transmission disc, an upper key tooth is arranged at the upper end of the transmission disc, a lower key groove is arranged at the lower end of the fine screen rotor, the upper key tooth is used for being embedded into the lower key groove, the propping spring is sleeved between the transmission disc and the mounting seat, and a pretightening force for enabling the upper key tooth to be embedded into the lower key groove is arranged on the propping spring.
By adopting the technical scheme, the abutting spring enables the upper key teeth to be embedded into the lower key groove, the transmission disc is connected with the motor shaft of the driving motor in a key way, so that the driving motor can drive the fine screen rotor to rotate, and the abutting spring is provided with a pretightening force so as to ensure that the upper key teeth can be embedded into the lower key groove.
Preferably, the upper surface of the upper key tooth is provided with two first guide surfaces, the first guide surfaces are used for being in sliding contact with the fine screening rotor, the distance between the two first guide surfaces is gradually reduced from bottom to top, and the intersecting line of the two first guide surfaces is intersected with the axis of the fine screening rotor.
By adopting the technical scheme, the upper key teeth are conveniently embedded into the lower key grooves.
Preferably, the screen cylinder further comprises a screw, a driving gear and a driven gear, wherein the screw is rotationally connected to the shell, the driving gear and the driven gear are coaxially and fixedly connected to the screw, gear teeth are arranged on the periphery of the transmission plate and are used for meshing the driving gear, the transmission plate is meshed with the driving gear when the upper key teeth are separated from the lower key groove, and gear teeth are arranged on the periphery of the screen cylinder and are used for meshing the driven gear.
Through adopting above-mentioned technical scheme, when people need wash the screen cylinder for go up the key tooth and break away from lower keyway, thereby make the driving disk meshing in the driving gear, the driving gear drives the screw rod and rotates, and makes driven gear rotate, thereby makes the screen cylinder can rotate, not only is convenient for wash the screen cylinder, and through a driving motor drive screen cylinder rotation, in order to practice thrift the cost moreover.
Preferably, the upper surface of each gear tooth of the driving gear is provided with two second guide surfaces, the second guide surfaces are used for the sliding abutting of the transmission disc, the distance between the two second guide surfaces is gradually reduced from bottom to top, and the intersection line between the two second guide surfaces is intersected with the axis of the driving gear.
By adopting the technical scheme, the driving gear can be meshed with the transmission disc conveniently.
Preferably, the screw is in threaded connection with the spray pipe, spray pipe periphery fixedly connected with location strip, the casing is equipped with and is used for supplying location strip and spray pipe slip inlay the constant head tank of establishing, the cell wall butt in location strip and spray pipe of constant head tank.
Through adopting above-mentioned technical scheme, the cell wall of constant head tank is spacing to the location strip to can drive the spray tube and slide when making the screw rod rotate, in order to realize the abluent automation of screen cylinder, improve clean efficiency.
Preferably, the device further comprises a screw rod, a worm wheel and a worm, wherein the lower end of the transmission disc is coaxially and rotatably connected with a transition ring, two ends of the abutting spring are respectively abutted against the transition ring and the mounting seat, the transition ring is fixedly connected with an adjusting plate, the screw rod is rotatably connected with the mounting seat around the axis of the screw rod, the axis of the screw rod is parallel to the axis of the transmission disc, the adjusting plate is in threaded connection with the screw rod, the worm wheel is coaxially and fixedly connected with the screw rod, the worm is rotatably connected with the mounting seat, and the worm is meshed with the worm wheel.
Through the adoption of the technical scheme, the worm and the worm wheel are rotated to enable the adjusting plate to axially slide along the screw rod, so that the transition ring and the transmission disc axially slide along the screw rod, the transition ring extrudes the abutting spring to enable the upper key teeth to be separated from the lower key grooves, self-locking is achieved through the worm and the worm wheel, and rotation of the transmission disc can be guaranteed to drive the driving gear to rotate.
Preferably, the transition ring and the mounting seat are both provided with annular grooves, the annular grooves are coaxial with the transmission disc, two ends of the transmission disc are respectively embedded into the two annular grooves, and the groove walls of the annular grooves are abutted against the spring.
Through adopting above-mentioned technical scheme, carry out spacingly to tight spring through the annular to avoid tight spring of support and driving motor's motor shaft contact, in order to avoid tight spring of support to be worn and torn, in order to improve the life of tight spring of support.
Preferably, the worm is coaxially and fixedly connected with a connecting shaft, and the other end of the connecting shaft is coaxially and fixedly connected with a handle.
By adopting the technical scheme, people can conveniently rotate the worm through the handle, and people can conveniently operate the worm.
In summary, the present application includes at least one of the following beneficial technical effects:
1. The jet head slides along the axial direction of the screen cylinder and washes the screen cylinder, and is combined with the rotation of the screen cylinder, so that the water sprayed by the jet head can keep larger impact force, impurities in the gap of the screen cylinder can be cleaned conveniently, the screening efficiency of the fine screening machine is improved, and after heavy impurities are removed by the fine screening machine, the light impurities are removed by the reverse slag remover so as to improve the purity of paper pulp, and the quality of produced paper is improved.
2. The driving motor can drive the fine screen rotor and the screw to rotate through the driving disc, and the screw drives the screen cylinder to rotate and drives the spray head to slide through the driven gear, so that the automation of cleaning the screen cylinder is realized, and the cleaning efficiency is improved;
3. The worm gear is arranged, self-locking can be achieved, and the handle can be automatically reset and rotated by the elastic force of the abutting spring, so that safety is improved.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Fig. 2 is a schematic cross-sectional view of an embodiment of the present application.
Fig. 3 is a schematic cross-sectional view of an embodiment of the present application, mainly for showing a rotation hole and a seal bearing.
Fig. 4 is an enlarged view at a in fig. 2.
Fig. 5 is an enlarged view at B in fig. 3.
The reference numerals are 1, a fine screening machine, 11, a shell, 111, a baffle ring, 112, a limiting ring, 113, a rotating hole, 114, a sealing bearing, 115, a pulp inlet, 116, a pulp outlet, 1161, a valve, 117, a slag discharging port, 118, a positioning groove, 12, a screen cylinder, 13, a fine screening rotor, 131, a rotor body, 132, a connecting disc, 1321, a lower key groove, 133, a rotor, 2, a reverse slag remover, 3, a mounting seat, 31, a mounting groove, 4, a driving piece, 41, a driving motor, 42, a driving disc, 421, a rotating groove, 422, a transition ring, 4221, a ring groove, 423, an upper key tooth, 424, a first guide surface, 425, an adjusting plate, 43, a tightening spring, 5, a screw, 6, a driving gear, 61, a second guide surface, 7, a driven gear, 8, a spray pipe, 81, a positioning bar, 9, a spray nozzle, 01, 02, a worm, 03, a screw, 04, a guide rod, 05, a handle, 06 and a connecting shaft.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
Referring to fig. 1 and 2, an embodiment of the application discloses a pulp deslagging system for papermaking, which comprises a fine screening machine 1, a reverse deslagging device 2 and a mounting seat 3, wherein the mounting seat 3 is used for being fixed on the ground, the fine screening machine 1 comprises a shell 11, a screen cylinder 12 and a fine screening rotor 13, the lower end of the shell 11 is fixedly connected with the mounting seat 3, the inner wall of the shell 11 is coaxially and fixedly connected with a baffle ring 111, the screen cylinder 12 is cylindrical, the screen cylinder 12 is provided with a gap for passing pulp, the screen cylinder 12 is coaxially arranged on the upper surface of the baffle ring 111, the screen cylinder 12 can rotate around the axis of the screen cylinder 12, a limit ring 112 is integrally formed on the inner periphery of the baffle ring 111, and the periphery of the limit ring 112 is abutted against the inner periphery of the screen cylinder 12 so as to position the screen cylinder 12.
Referring to fig. 2 and 3, the fine screen rotor 13 includes a rotor body 131, a connection disc 132 and a plurality of rotor wings 133, the rotor body 131 is coaxially located at the inner circumference of the screen cylinder 12, a rotation hole 113 is coaxially provided at the lower end of the housing 11, a sealing bearing 114 is fixedly embedded in the rotation hole 113, the lower end of the rotor body 131 is fixedly embedded at the inner circumference of the sealing bearing 114 and extends out of the housing 11, and the rotor wings 133 are fixedly connected at the outer circumference of the rotor body 131 and located in the housing 11.
Referring to fig. 1 and 2, a casing 11 is provided with a pulp inlet 115, a pulp outlet 116 and a pulp outlet 117, the pulp outlet 117 and the pulp inlet 115 are all positioned below a baffle ring 111, so that the pulp inlet 115 is communicated with the inside of a screen cylinder 12, the pulp outlet 116 is positioned above the baffle ring 111, pulp is discharged through the pulp outlet 116 through a gap of the screen cylinder 12 under the action of a rotor body 131 and a rotor 133, the pulp outlet 117 is lower than the pulp inlet 115, so that heavy slag falls into the pulp outlet 117, the pulp outlet 117 is provided with a valve 1161 for opening and closing the pulp outlet, when the heavy slag is accumulated to a certain extent, the valve 1161 is opened, so that the heavy slag is discharged, the pulp outlet 116 is communicated with a reverse slag remover 2, the reverse slag remover 2 can be used for treating light slag, the reverse slag remover 2 is a prior art, the application does not need to be repeated, and the purity of the pulp is removed through the reverse slag remover 2, so that the purity of the pulp is improved, and the quality of the subsequent paper is improved.
Referring to fig. 2 and 4, the upper surface of the mounting seat 3 is provided with a mounting groove 31, the rotor body 131 extends out of the housing 11, is positioned in the mounting groove 31 and is coaxially and fixedly connected to the connecting disc 132, the lower surface of the connecting disc 132 is provided with a plurality of lower key grooves 1321, and all the lower key grooves 1321 are distributed at equal intervals along the circumferential direction of the connecting disc 132.
Referring to fig. 2 and 3, a papermaking pulp deslagging system further comprises a driving piece 4, wherein the driving piece 4 comprises a driving motor 41, a transmission disc 42 and a propping spring 43, the driving motor 41 is fixedly connected to the lower surface of the mounting seat 3, a motor shaft of the driving motor 41 stretches into the mounting groove 31 and is connected to the transmission disc 42 in a key manner, and the periphery of the motor shaft is used for being in sliding contact with the transmission disc 42.
Referring to fig. 3 and 4, a rotary groove 421 is coaxially provided on the lower surface of the driving disc 42, a transition ring 422 is rotationally connected to the rotary groove 421, ring grooves 4221 are provided at the bottoms of the transition ring 422 and the mounting groove 31, the ring grooves 4221 are coaxial with the driving disc 42, and two ends of the abutting spring 43 are respectively embedded in the ring grooves 4221, so that the abutting spring 43 is limited by the wall of the ring groove 4221, and friction between the spring and a motor shaft is avoided.
Referring to fig. 2 and 4, the upper end surface of the driving disc 42 is provided with a plurality of upper key teeth 423, all the upper key teeth 423 are distributed at equal intervals along the circumferential direction of the driving disc 42, the upper key teeth 423 are used for being embedded into the lower key groove 1321, the abutting spring 43 is provided with a pre-tightening force for enabling the upper key teeth 423 to be embedded into the lower key groove 1321, when the upper key teeth 423 are embedded into the lower key groove 1321, the driving disc 42 is driven to rotate through the driving motor 41 so as to drive the connecting disc 132 to rotate, thereby enabling the rotor body 131 to rotate, the upper surface of each upper key tooth 423 is provided with two first guide surfaces 424, the first guide surfaces 424 are used for being in sliding abutting connection with the connecting disc 132, in each upper key tooth 423, the distance between the two first guide surfaces 424 is gradually reduced from bottom to top, and the intersection line of the two first guide surfaces 424 is intersected with the axis of the connecting disc 132, so that the upper key teeth 423 are embedded into the lower key groove 1321.
Referring to fig. 2 and 5, the pulp deslagging system for papermaking further comprises three screws 5, three driving gears 6 and three driven gears 7, wherein the distances from the axes of the three screws 5 to the axis of a driving disk 42 are equal, the screws 5 are rotationally connected to a shell 11, one ends of the screws 5 are located in a mounting groove 31, the other ends of the screws 5 penetrate through the bottom wall of the shell 11 and then are located in the shell 11, the three driving gears 6 are respectively and fixedly connected to the three screws 5 coaxially, the driving gears 6 are located in the mounting groove 31, a plurality of gear teeth are arranged on the periphery of the driving disk 42, so that the driving disk 42 is used for meshing the driving gears 6, two second guide surfaces 61 are arranged on the upper surface of each gear tooth of the driving gears 6, the second guide surfaces 61 are used for enabling the driving disk 42 to slide and abut, and the distance between the two guide surfaces on the same gear tooth of the driving gears 6 is gradually reduced from bottom to top, and the intersection line between the two second guide surfaces 61 intersects with the axis of the driving gears 6, so that the driving disk 42 meshes with the driving gears 6.
The three driven gears 7 are respectively and fixedly connected to the three screw rods 5 in a coaxial manner, the driven gears 7 are positioned on the upper surface of the baffle ring 111, gear teeth are arranged on the periphery of the screen cylinder 12 so that the screen cylinder 12 is meshed with the driven gears 7, and when the upper key teeth 423 are separated from the lower key grooves 1321, the transmission disc 42 is meshed with the driving gear 6 so that the driving motor 41 drives the driving gear 6 to rotate, and the screw rods 5 are further driven to rotate, so that the screen cylinder 12 is driven to rotate through the driven gears 7.
Referring to fig. 2, the papermaking pulp deslagging system further comprises three spray pipes 8 and a plurality of spray heads 9, wherein the outer wall of the spray pipes 8 is fixedly connected with positioning strips 81, the length direction of the positioning strips 81 is identical to the length direction of the spray pipes 8, the length direction of the spray pipes 8 is identical to the axial direction of a shell 11, a positioning groove 118 is formed in the top wall of the shell 11, the spray pipes 8 and the positioning strips 81 are slidably embedded in the positioning groove 118, one ends of the spray pipes 8 and the positioning strips 81 extend into the shell 11, the spray pipes 8 are in threaded connection with a screw 5 so as to drive the spray pipes 8 to slide, all the spray heads 9 are divided into three groups, the number of the spray heads 9 in each group is equal, the spray heads 9 in each group are respectively connected with the three spray pipes 8, the spray heads 9 are positioned between a screen cylinder 12 and the inner wall of the shell 11, the spray heads 9 face the axial direction of the screen cylinder 12, the spray heads 9 face the screen cylinder 12 and are used for spraying water to the screen cylinder 12, the spray heads 8 are communicated with the spray heads 9, and one ends of the spray pipes 8 extending out of the shell 11 are used for communicating with a water pump.
Referring to fig. 2, the papermaking pulp deslagging system further comprises a worm wheel 01, a worm 02, a screw 03 and two guide rods 04, wherein the screw 03 is rotationally connected to the mounting seat 3 around the axis of the worm wheel, two ends of the guide rods 04 are respectively and fixedly connected to the mounting seat 3 and the shell 11, the axis of the guide rods 04 is parallel to the axis of the screw 03, three adjusting plates 425 are fixedly connected to the transition ring 422, the three adjusting plates 425 are distributed at equal intervals along the circumferential direction of the transition ring 422, one adjusting plate 425 is in threaded connection with the screw 03, the other two adjusting plates 425 are respectively and slidingly connected to the guide rods 04, the worm wheel 01 is coaxially and fixedly connected to the screw 03, the worm 02 is rotationally connected to the mounting seat 3, the worm 02 is meshed with the worm wheel 01, so that the worm wheel 01 is rotationally driven by the worm 02, the screw 03 is rotationally driven by the worm wheel 03, when the screw 03 is rotationally driven, the adjusting plates 425 drive the transition ring 422 to slide, and the transmission disc 42 to slide, and self-locking of the worm wheel 01 is prevented from being abutted against the spring 43. The worm 02 is coaxially and fixedly connected with a connecting shaft 06, and one end of the connecting shaft 06 away from the worm 02 extends out of the mounting groove 31 and is fixedly connected with a handle 05, so that the position of the transmission disc 42 can be conveniently adjusted by people through the handle 05.
The embodiment of the application provides a paper pulp deslagging system for papermaking, which is implemented by the principle that when papermaking is carried out, pulp needs to be deslagged, heavy slag falls into a deslagging port 117 based on self gravity after the pulp enters a shell 11, the pulp enters a pulp outlet 116 through a gap of a screen cylinder 12 by centrifugal force generated by rotation of a fine screen rotor 13, and the pulp outlet 116 is communicated with a reverse deslagging device 2 so as to remove light impurities contained in the pulp through the reverse deslagging device 2, thereby improving the purity of the pulp and improving the paper quality of pulp production. However, when the gap of the screen cylinder 12 is blocked, people can rotate the handle to enable the upper key teeth 423 to be separated from the lower key grooves 1321, the transmission disc 42 is meshed with the driving gear 6, when the driving motor 41 drives the transmission disc 42 to rotate, the driving gear 6 drives the driven gear 7 to rotate through the screw 5, so that the screen cylinder 12 rotates, the screw 5 is in threaded connection with the spray pipe 8, the spray head 9 connected to the spray pipe 8 can slide, the position of the spray head 9 for flushing the screen cylinder 12 is changed, people do not need to manually take the spray head 9 to flush the screen cylinder 12, and the spray head 9 and the flushed place of the screen cylinder 12 are kept at a relatively short distance, so that the impact force of water flow of the spray head 9 is improved, and the screen cylinder 12 is cleaned by people conveniently, and the subsequent screening efficiency of the screen cylinder 12 is improved.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.
Claims (8)
1. A pulp deslagging system for papermaking comprises a fine screening machine (1) and a reverse deslagging device (2), the method is characterized in that: also comprises a mounting seat (3), a driving piece (4), a spray pipe (8) and a spray head (9), the fine screening machine (1) comprises a shell (11) connected to the mounting seat (3), a screen cylinder (12) and a fine screening rotor (13) arranged on the inner periphery of the screen cylinder (12), wherein a driving piece (4) is used for driving the fine screening rotor (13) to rotate; the shell (11) is provided with a slurry inlet (115), a slurry outlet (116) and a slag discharging port (117), the pulp inlet (115) is communicated with the inside of the screen cylinder (12), the pulp outlet (116) is communicated with the inlet of the reverse slag remover (2), the pulp outlet (116) is higher than the pulp inlet (115), and the pulp inlet (115) is higher than the slag discharging port (117); the spray head (9) is axially arranged in the shell (11) in a sliding way along the screen cylinder (12), one end of the spray pipe (8) is connected with the spray head (9), the other end of the spray pipe (8) extends out of the shell (11) and is used for being communicated with a water pump, and the spray head (9) is used for spraying water to the screen cylinder (12); the screen cylinder (12) is rotatably arranged in the shell (11) around the axis of the screen cylinder;
The driving piece (4) comprises a driving motor (41), a transmission disc (42) and a propping spring (43), wherein the driving motor (41) is fixedly connected between the mounting seat (3), a motor shaft of the driving motor (41) is connected with the transmission disc (42) in a key manner, the periphery of a motor shaft is used for being in sliding contact with the transmission disc (42), an upper key tooth (423) is arranged at the upper end of the transmission disc (42), a lower key groove (1321) is arranged at the lower end of the fine screen rotor (13), the upper key tooth (423) is used for being embedded into the lower key groove (1321), the propping spring (43) is sleeved between the transmission disc (42) and the mounting seat (3), and the propping spring (43) is provided with a pretightening force which enables the upper key tooth (423) to be embedded into the lower key groove (1321);
The novel screen drum is characterized by further comprising a screw (5), a driving gear (6) and a driven gear (7), wherein the screw (5) is rotationally connected to the shell (11), the driving gear (6) and the driven gear (7) are coaxially and fixedly connected to the screw (5), gear teeth are arranged on the periphery of a transmission disc (42) and are used for meshing the driving gear (6), when the upper key teeth (423) are separated from the lower key groove (1321), the transmission disc (42) is meshed with the driving gear (6), and gear teeth are arranged on the periphery of the screen drum (12) and are used for meshing the driven gear (7).
2. A papermaking pulp deslagging system according to claim 1, characterized in that the spray head (9) is located between the screen cylinder (12) and the inner wall of the housing (11), the spray head (9) being oriented perpendicular to the axial direction of the screen cylinder (12).
3. A pulp deslagging system for papermaking according to claim 1, wherein the upper surface of the upper key teeth (423) is provided with two first guide surfaces (424), the first guide surfaces (424) are used for being in sliding contact with the fine screening rotor (13), the distance between the two first guide surfaces (424) is gradually reduced from bottom to top, and the intersection line of the two first guide surfaces (424) is intersected with the axis of the fine screening rotor (13).
4. A pulp deslagging system for papermaking according to claim 1, wherein the upper surface of each gear tooth of the driving gear (6) is provided with two second guide surfaces (61), the second guide surfaces (61) are used for sliding and abutting the transmission disc (42), the distance between the two second guide surfaces (61) is gradually reduced from bottom to top, and the intersection line between the two second guide surfaces (61) is intersected with the axis of the driving gear (6).
5. The papermaking pulp deslagging system according to claim 1, wherein the screw (5) is in threaded connection with the spray pipe (8), a positioning strip (81) is fixedly connected to the periphery of the spray pipe (8), a positioning groove (118) used for enabling the positioning strip (81) and the spray pipe (8) to be in sliding embedding is formed in the shell (11), and the groove wall of the positioning groove (118) is abutted against the positioning strip (81) and the spray pipe (8).
6. The papermaking pulp deslagging system according to claim 1, further comprising a screw rod (03), a worm wheel (01) and a worm (02), wherein the lower end of the transmission disc (42) is coaxially and rotatably connected with a transition ring (422), two ends of the abutting spring (43) are respectively abutted against the transition ring (422) and the mounting seat (3), the transition ring (422) is fixedly connected with an adjusting plate (425), the screw rod (03) is rotatably connected with the mounting seat (3) around the axis of the screw rod (03), the axis of the screw rod (03) is parallel to the axis of the transmission disc (42), the adjusting plate (425) is in threaded connection with the screw rod (03), the worm wheel (01) is coaxially and fixedly connected with the screw rod (03), the worm (02) is rotatably connected with the mounting seat (3), and the worm (02) is meshed with the worm wheel (01).
7. A pulp deslagging system for papermaking according to claim 6, wherein the transition ring (422) and the mounting seat (3) are respectively provided with a ring groove (4221), the ring grooves (4221) are coaxial with the transmission disc (42), two ends of each ring groove are respectively embedded into the two ring grooves (4221), and the groove walls of the ring grooves (4221) are abutted against the tight springs (43).
8. The papermaking pulp deslagging system according to claim 6, wherein the worm (02) is coaxially and fixedly connected with a connecting shaft (06), and the other end of the connecting shaft (06) is coaxially and fixedly connected with a handle (05).
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| CN202211668631.1A CN115976870B (en) | 2022-12-24 | 2022-12-24 | A pulp removal system for papermaking |
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| CN210287949U (en) * | 2019-07-24 | 2020-04-10 | 杭州临安桃源纸业有限公司 | Pressure screen |
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| JP3401674B2 (en) * | 1999-04-06 | 2003-04-28 | 良晁 田中 | Pulp production method, pulp production apparatus used therefor, and pulp production method using the apparatus |
| CN208562978U (en) * | 2018-06-26 | 2019-03-01 | 台州森林造纸有限公司 | A kind of pretreatment unit of waste paper pulp-making |
| CN211471953U (en) * | 2019-12-24 | 2020-09-11 | 郑州运达造纸设备有限公司 | Combined type tailings sieve |
| CN113152138A (en) * | 2021-02-10 | 2021-07-23 | 徐州利华环保科技有限公司 | Efficient and energy-saving pulp pressure screen and working method thereof |
| CN215251962U (en) * | 2021-06-26 | 2021-12-21 | 杭州临安牌联纸业有限公司 | Pressure screen |
| CN113638256A (en) * | 2021-07-09 | 2021-11-12 | 杨胜明 | Rotor for pressure screen with scale removal function |
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| CN210287949U (en) * | 2019-07-24 | 2020-04-10 | 杭州临安桃源纸业有限公司 | Pressure screen |
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