CN110396848B - Waste paper pulping system - Google Patents
Waste paper pulping system Download PDFInfo
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- CN110396848B CN110396848B CN201910710392.3A CN201910710392A CN110396848B CN 110396848 B CN110396848 B CN 110396848B CN 201910710392 A CN201910710392 A CN 201910710392A CN 110396848 B CN110396848 B CN 110396848B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/32—Defibrating by other means of waste paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/06—Rotary screen-drums
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The invention discloses a waste paper pulping system which comprises a continuous disintegrating system and a coarse screening system, wherein the output end of the continuous disintegrating system is connected with the input end of the coarse screening system, a cylindrical screen for the continuous disintegrating system is arranged in the continuous disintegrating system, the cylindrical screen for the continuous disintegrating system is of a mesh screen structure, the tail end of the coarse screening system is provided with the cylindrical screen for the coarse screening system, and the cylindrical screen for the coarse screening system is of a slit screen structure. The invention realizes systematic screening, improves pulping screening efficiency and achieves the aims of high efficiency, low consumption and low pollution.
Description
Technical Field
The invention belongs to the technical field of papermaking equipment, and particularly relates to a waste paper pulping system.
Background
The existing waste paper pulping system is unreasonable in design, so that the fiber loss rate is high. The utility model patent of publication No. CN205223719U provides a waste paper pulping, drifting system, and pulping, drifting flow have set gradually pulper, first middle pond, frame sieve that shakes, pond in the middle of the second, low pressure scummer, flotation machine, cylinder thickener, first stock chest, disc mill unit, second stock chest, net fore bay, surge tank, dashing the thick liquid pond, toper scummer, pressure screen, head tank and head box from the past backward. The waste paper pulping and drifting system completely meets the requirements of waste paper deinking pulping and paper purification.
The utility model patent of publication No. CN207973927U provides a pulping system for improving the strength of waste paper pulp, comprising a waste pulp beating device, a wood pulp beating device and a pulp grinder, wherein the waste pulp beating device comprises a waste paper pulper, a pulping enzyme storage tank and a pulping enzyme delivery pump, and the pulping enzyme storage tank is communicated with a feed inlet of the waste paper pulper through the pulping enzyme delivery pump; the wood pulp beating device comprises a hydrapulper, a biological enzyme storage tank and a biological enzyme delivery pump, wherein the biological enzyme storage tank is communicated with a feed inlet of the hydrapulper through the biological enzyme delivery pump; the pulp outlets of the waste paper pulper and the hydrapulper are respectively communicated with the pulp inlet of the pulp grinder through a pulp conveying pump. The utility model adds a certain amount of pulping enzyme in the waste paper pulper, thereby improving the secondary fiber strength of the waste paper pulp; meanwhile, a certain amount of biological enzyme is added into the wood pulp beating device, the strength of the wood pulp fibers is improved, the finally prepared paper pulp has higher strength, and the loss of the wood pulp fibers and the secondary fibers is reduced.
The technical scheme disclosed by the invention cannot achieve the aims of high efficiency, low consumption and low pollution.
In addition, the traditional pulping process selects a coarse screen tailings screen to separate light impurities in the tailings, and the effect is poor. Some cylindrical screen solutions are also disclosed in the prior art, but conventional cylindrical screens are used in continuous disintegrating systems (high consistency or low consistency) to remove the coarser shaped light impurities in the waste paper.
The utility model discloses a drum sieve as bulletin number CN205711536U, its technical scheme main points include the casing, set up and be equipped with the sieve mesh on inside circular cylinder, the cylinder of casing, are equipped with on the cylinder and are used for driving its pivoted power unit, are equipped with the ground paste between cylinder and the casing and retrieve the chamber, and the lower part of casing is equipped with the row's thick liquid mouth of retrieving the chamber intercommunication with the ground paste, and the below of arranging the thick liquid mouth is equipped with the ground paste and retrieves the pond, and the closing plate is passed through to the one end of cylinder sealed, and the other end is the slag notch, and the central point of closing plate puts and is connected with into the thick liquid pipe, be equipped. The baffle plate is arranged, so that the path of slurry passing through the roller is prolonged, the baffle plate is provided with the holes for communication, so that heavy impurities can be discharged out of the roller at an accelerated speed, and the efficiency is improved.
The utility model discloses a utility model like notice number CN202730528U relates to a drum screen, which comprises a motor, a shell and a screen drum, wherein the motor is in driving connection with the screen drum, the screen drum is arranged inside the shell, a water slurry recovery cavity is arranged between the screen drum and the shell, and a slurry discharge port communicated with the water slurry recovery cavity is arranged at the lower part of the shell; the inside of screen cylinder is equipped with the flight, and the flight is the heliciform setting round the axis of screen cylinder. Compared with the prior art, the spiral helical blade is arranged in the screen cylinder to prolong the time of the slag slurry passing through the cylindrical screen, so that impurities and fibers of the slag slurry are better separated, and the screening effect is good.
The utility model discloses a closed drum sieve, including the frame and rack-mounted sieve section of thick bamboo, the below of a sieve section of thick bamboo is equipped with the dressing trough, dressing trough and frame fixed connection, and the top of a sieve section of thick bamboo is equipped with the combination guard shield, and the frame upper end is equipped with the basin, and the bottom of basin is equipped with the delivery port, and the delivery port is linked together with the dressing trough, is equipped with the shower in the basin. Can effectively prevent the spray water sputtering rebound and the leakage of partial slurry at the top of the screen drum, and avoid the environmental pollution.
The above-mentioned publications are all cylinder sieves for low-concentration or high-concentration continuous disintegrating systems, the cylinder sieves of the low-concentration continuous disintegrating system are used for processing the pulp disintegrated by the D-type pulper, and the tail pulp after passing through the impurity separator enters the cylinder sieves again; the cylinder of the high-concentration continuous disintegrating system is used for treating the pulp disintegrated by the high-concentration pulper, and the pulp enters the cylinder screen after passing through the roughing machine. Because the continuous disintegrating system is positioned at the most initial position of the waste paper pulping process flow, the pulp has more impurities and larger volume, a sieve with holes of about 10mm is generally selected, and the volume of the screened light impurities is also larger.
And the good pulp treated by the continuous disintegrating system is screened by a coarse screening system to realize the thorough separation of light impurities in the tail pulp. As the pulp entering the coarse screening system is in different state from the pulp of the continuous disintegrating system, and the impurities in the pulp are different in types and sizes, the existing cylindrical screen cannot be applied to thoroughly separating the light impurities in the tail pulp in the coarse screening system, so that the defects of small passing capacity and high fiber loss rate are caused.
Disclosure of Invention
The invention provides a waste paper pulping system for overcoming the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a waste paper pulping system, includes continuous disintegration system and coarse screening system, and the output of continuous disintegration system is connected with coarse screening system's input, be equipped with the cylinder sieve that is used for continuous disintegration system in the continuous disintegration system for the cylinder sieve of continuous disintegration system is the hole sieve structure, and the end of coarse screening system is equipped with the cylinder sieve that is used for coarse screening system, and the cylinder sieve that is used for coarse screening system is the seam sieve structure.
Still be equipped with the high enriched slagging-off machine that is used for removing heavy impurity between continuous disintegrating system and the coarse screening system, the output of continuous disintegrating system and the access connection of high enriched slagging-off machine, the export of high enriched slagging-off machine and the input of coarse screening system are connected.
The continuous disintegrating system also comprises a D-type pulper and an impurity separator, wherein the D-type pulper, the impurity separator and a cylindrical sieve for the continuous disintegrating system are sequentially connected and arranged;
waste paper enters a D-type pulper through a chain plate conveyor, light impurity-containing pulp generated by the D-type pulper enters an impurity separator after being processed by a sediment well, enters a cylindrical sieve for a continuous disintegrating system after being separated again by the impurity separator, the cylindrical sieve for the continuous disintegrating system separates larger light impurities in the pulp, and good pulp in the D-type pulper enters a coarse screening system.
The coarse screening system also comprises a medium-concentration coarse screening machine and a flotation slag removal machine, wherein the medium-concentration coarse screening machine, the flotation slag removal machine and a cylindrical screen for the coarse screening system are sequentially connected and arranged;
and after the slurry entering the coarse screening system passes through a medium-concentration coarse screening machine, the tail slurry enters a flotation slag cleaning machine, and the tail slurry of the flotation slag cleaning machine enters a cylindrical screen for the coarse screening system to thoroughly separate fine light impurities from the slurry.
The cylindrical screen for the coarse screening system comprises a horizontally arranged machine body and a screen cylinder arranged in the machine body, wherein a pulp inlet and a tail pulp outlet are formed at two axial ends of the screen cylinder respectively, an excellent pulp recovery cavity is formed between the screen cylinder and the machine body, and a pulp discharge port communicated with the excellent pulp recovery cavity is formed at the lower part of the machine body; the screen drum is connected with a transmission device for driving the screen drum to rotate, and the inner wall of the screen drum is provided with guide plates which are spirally arranged along the axial direction of the screen drum, so that a spiral guide channel is formed on the inner wall of the screen drum; the screen drum is provided with screen slots extending along the axial direction in an array manner to form a slot screen structure;
the upper part of the machine body is provided with a spray water pipe and a cleaning water pipe which axially penetrate through the good pulp recovery cavity.
Cleaning nozzles pointing to the screen seams are distributed on the cleaning water pipe, the cleaning water pipe and the machine body form axial guide fit, the cleaning water pipe is connected with a cleaning driving device, and the cleaning driving device drives the cleaning water pipe to reciprocate along the axial direction of the cleaning water pipe;
the spray water pipe is provided with spray nozzles pointing to the screen cylinder, and the water sprayed out of the spray nozzles is in a fan shape vertical to the axial direction of the screen cylinder.
The cleaning driving device comprises an electric push rod horizontally arranged with the cleaning water pipe, one end of the electric push rod is in transmission connection with a rotating motor, the rotating motor is located outside the machine body and is fixedly connected with the machine body, and the other end of the electric push rod is fixedly connected with the cleaning water pipe through an embracing ring.
The lower part of the machine body is provided with a downward contracted slurry receiving disc structure, and the slurry discharge port is arranged at the lower position of the slurry receiving disc structure.
The organism is closed structure, and is equipped with the access hole on the organism, and access hole department is equipped with the shrouding rather than open-close type connection.
The transmission device comprises a driving shaft, a driving motor and a speed reducer, wherein the driving shaft, the driving motor and the speed reducer are arranged on the upper side of the machine body in a supporting mode, the driving motor drives the driving shaft to rotate through the speed reducer, belt driving wheels are arranged at two end portions of the driving shaft respectively, a belt driven wheel is arranged at a position, corresponding to the driving belt wheel, on the screen drum, and the corresponding belt driving wheel and the belt driven wheel are connected.
The invention has the beneficial effects that:
the waste paper pulping system comprises a continuous disintegrating system and a coarse screening system, wherein the output end of the continuous disintegrating system is connected with the input end of the coarse screening system, a cylindrical screen for the continuous disintegrating system is arranged in the continuous disintegrating system, the cylindrical screen for the continuous disintegrating system is of a mesh screen structure, the tail end of the coarse screening system is provided with the cylindrical screen for the coarse screening system, and the cylindrical screen for the coarse screening system is of a slotted screen structure, so that systematic screening is realized, pulping screening efficiency is improved, and the aims of high efficiency, low consumption and low pollution are fulfilled.
Drawings
FIG. 1 is a schematic view of a wastepaper pulping system according to an embodiment of the present invention;
FIG. 2 is a front view of a cylindrical screen for use in the coarse screening system in an embodiment of the present invention;
FIG. 3 is a left side view of a cylindrical screen for use in a coarse screening system in an embodiment of the present invention;
FIG. 4 is a right side view of a cylindrical screen for use in the coarse screening system in an embodiment of the present invention;
FIG. 5 is a top view of a cylindrical screen for use in a coarse screening system in an embodiment of the present invention;
FIG. 6 is a perspective view of a cylindrical screen for use in the coarse screening system in an embodiment of the present invention;
FIG. 7 is a schematic sectional view A-A of FIG. 5;
FIG. 8 is a schematic view of the protective cover and a portion of the housing of FIG. 1 removed;
FIG. 9 is a schematic view showing the structure of a shower portion in the embodiment of the present invention;
FIG. 10 is a schematic view of the structure of the shower head portion of FIG. 9;
FIG. 11 is a schematic structural view of a water pipe cleaning portion according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1, the embodiment discloses a waste paper pulping system, including arranging continuous disintegrating system a and coarse screening system B connected in proper order, still be equipped with the high enriched slag remover 50 that is used for removing heavy impurity between continuous disintegrating system a and the coarse screening system B, continuous disintegrating system a's output and high enriched slag remover 50's access connection, the good pulp export of high enriched slag remover is connected with the input of coarse screening system B.
The continuous disintegrating system A comprises a D-type pulper 31, an impurity separator 32 and a cylindrical screen 33 for the continuous disintegrating system which are sequentially connected, wherein the cylindrical screen 33 for the continuous disintegrating system is of a mesh screen structure. The D-type pulper 31 and the impurity separator 32 are prior art. The cylindrical screen 33 used in the continuous disintegrating system is a prior art, and can be selected from the technical solutions disclosed by the publication numbers CN205711536U, CN202730528U or CN 208486121U.
Waste paper enters a D-type pulper 31 through a chain conveyor 34, light impurity-containing pulp generated by the D-type pulper 31 enters an impurity separator 32 after being processed by a sediment well, enters a cylindrical screen 33 for a continuous disintegrating system after being separated again by the impurity separator 32, larger light impurities in the pulp are separated by the cylindrical screen 33 for the continuous disintegrating system, good pulp separated from the cylindrical screen 33 for the continuous disintegrating system enters the D-type pulper 31 again, and good pulp separated from the D-type pulper 31 enters a high-concentration slag remover 50.
The coarse screening system B is sequentially connected with a medium-concentration coarse screening machine 41, a flotation slag remover 42 and a cylindrical screen 43 for the coarse screening system, wherein the medium-concentration coarse screening machine 41 and the flotation slag remover 42 are in the prior art. The cylindrical screen 43 used in the coarse screening system was the same as in example one.
The slurry from which heavy impurities are removed by the high-concentration slag remover 50 enters the coarse screening system B, the tail slurry passes through the medium-concentration coarse screening machine 41 and then enters the flotation slag remover 42, the tail slurry of the flotation slag remover 42 enters the cylindrical screen 43 for the coarse screening system, and the cylindrical screen 43 for the coarse screening system thoroughly separates fine light impurities from the slurry, so that the purpose of purifying the slurry is achieved.
As shown in fig. 2 to 8, the cylindrical screen for the coarse screening system in the present embodiment includes a horizontally arranged machine body 1 and a screen drum 2 disposed in the machine body, wherein screen slots 20 extending in an axial direction are arranged in an array on the screen drum 2 to form a slotted screen structure. Organism 1 is closed structure, realizes closed screening, reduces environmental pollution, and is equipped with the access hole on the organism 1, and access hole department is equipped with shrouding 7 rather than open-close type connection, makes things convenient for follow-up maintenance.
The axial both ends of a screen drum 2 form into thick liquid mouth 4 and tail thick liquid mouth 3 respectively, form the good thick liquid between a screen drum 2 and the organism 1 and retrieve the chamber, and the lower part of organism 1 is equipped with the row's thick liquid mouth 5 with good thick liquid recovery chamber intercommunication. In this embodiment, the lower portion of the machine body 1 is provided with a slurry receiving tray structure 8 which contracts downwards, and the slurry outlet 5 is arranged at the lower position of the slurry receiving tray structure 8.
The screen drum 2 is connected with a transmission device 6 for driving the screen drum to rotate. In this embodiment, transmission 6 locates the drive shaft 61 of organism 1 upside including supporting, driving motor 62 and reduction gear 63, driving motor 62 passes through reduction gear 63 drive shaft 61 and rotates, the both ends of drive shaft 61 are equipped with belt drive wheel 64 respectively, correspond the department with driving pulley on the sieve section of thick bamboo 2 and be equipped with the belt from the driving wheel, the belt drive wheel 64 and the belt that correspond pass through belt transmission from the driving wheel and connect, thereby form the transmission structure of putting the top formula, the transmission is steady, reduce the space, compact structure. The belt driving wheel 64 is also provided with a protective cover 11.
In this embodiment, the machine body 1 is provided with a riding wheel which is matched with the screen drum 2 in a rolling manner, and an axial limiting matching part is arranged at a position on the screen drum 2 corresponding to the riding wheel, so that a riding wheel limiting supporting mechanism 9 is formed, and the screen conveying drum is more stable in running.
The inner wall of the screen cylinder 2 is provided with guide plates 21 which are spirally arranged along the axial direction of the screen cylinder, so that a spiral guide channel is formed on the inner wall of the screen cylinder 2, and material lifting plates 22 are arranged at intervals along the conveying direction of the spiral guide channel, thereby improving the screening and separating effects.
As shown in fig. 9 to 10, a spray water pipe 12 axially penetrating through the good pulp recovery cavity is arranged at the upper part of the machine body 1, spray nozzles 121 pointing to the screen cylinder are arranged on the spray water pipe 12, and the water sprayed out of the spray nozzles 121 is in a fan shape axially perpendicular to the screen cylinder, so that no dead angle is formed in the spraying.
As shown in fig. 11, the upper portion of the machine body 1 is further provided with a cleaning water pipe 13 penetrating through the good pulp recovery cavity along the axial direction, cleaning nozzles pointing to the screen seams are arranged on the cleaning water pipe 13, the cleaning water pipe and the machine body form axial guiding fit, the cleaning water pipe 13 is connected with a cleaning driving device, the cleaning driving device drives the cleaning water pipe to reciprocate along the axial direction of the cleaning water pipe, each screen seam can be continuously cleaned, and the screening area can be continuously performed without blockage.
In this embodiment, the two axial ends of the machine body 1 are respectively provided with a guide hole 131 corresponding to the cleaning water pipe 13, and the cleaning water pipe 13 is slidably penetrated through the guide holes 131 to form axial guiding matching of the cleaning water pipe 13 and the machine body 1.
In this embodiment, the cleaning driving device includes an electric push rod 14 horizontally disposed with the cleaning water pipe 13, one end of the electric push rod 14 is connected to the servo rotating motor 10 in a transmission manner, the servo rotating motor 10 is located outside the machine body 1 and is fixedly connected with the machine body 1, and the other end of the electric push rod 14 is fixedly connected with the cleaning water pipe 13 through the hoop 141. The servo rotating motor 10 drives the electric push rod 14 to reciprocate in a rotating mode, and therefore the cleaning water pipe 13 is driven to reciprocate in the axial direction.
In this embodiment, shower pipe and washing water pipe are located a sieve section of thick bamboo with one side, compact structure, and conveniently supply water.
The cylindrical screen for the coarse screening system in the implementation is suitable for the tail end of the coarse screening system behind the waste paper pulping process flow continuous decomposing system, adopts a slotted screen structure, is mainly used for thoroughly separating light impurities in tail pulp by the tail end of the waste paper pulp coarse screening system, can continuously run, and has high passing capacity and low fiber loss rate.
The cylindrical screen used for the coarse screening system in the embodiment can effectively replace a coarse screen tailings screen in the traditional pulping process, relatively speaking, a motor installed on the cylindrical screen is much smaller, the coarse screen tailings screen with the same yield needs to be matched with a 200KW motor, and the energy-saving effect is very obvious as long as 11 KW.
The waste paper pulping system comprises a continuous disintegrating system and a coarse screening system, wherein a cylindrical screen for the continuous disintegrating system is arranged in the continuous disintegrating system, the cylindrical screen for the continuous disintegrating system is of a hole screen structure, the tail end of the coarse screening system is provided with the cylindrical screen for the coarse screening system, and the cylindrical screen for the coarse screening system is of a slit screen structure, so that systematic screening is realized, pulping screening efficiency is improved, and the aims of high efficiency, low consumption and low pollution are fulfilled.
Although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made thereto without departing from the spirit and scope of the invention and it is intended to cover in the claims the invention as defined in the appended claims.
In the description of the present invention, it is to be understood that the terms "front", "rear", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the scope of the present invention.
Claims (9)
1. The utility model provides a waste paper pulping system, includes continuous disintegration system and coarse screening system, and the output of continuous disintegration system is connected its characterized in that with coarse screening system's input: the continuous disintegrating system is internally provided with a cylindrical screen for the continuous disintegrating system, the cylindrical screen for the continuous disintegrating system is of a hole screen structure, the tail end of the coarse screening system is provided with the cylindrical screen for the coarse screening system, and the cylindrical screen for the coarse screening system is of a slit screen structure;
the cylindrical screen for the coarse screening system comprises a horizontally arranged machine body and a screen cylinder arranged in the machine body, wherein a pulp inlet and a tail pulp outlet are formed at two axial ends of the screen cylinder respectively, an excellent pulp recovery cavity is formed between the screen cylinder and the machine body, and a pulp discharge port communicated with the excellent pulp recovery cavity is formed at the lower part of the machine body; the screen drum is connected with a transmission device for driving the screen drum to rotate, and the inner wall of the screen drum is provided with guide plates which are spirally arranged along the axial direction of the screen drum, so that a spiral guide channel is formed on the inner wall of the screen drum; the screen drum is provided with screen slots extending along the axial direction in an array manner to form a slot screen structure;
the upper part of the machine body is provided with a spray water pipe and a cleaning water pipe which axially penetrate through the good pulp recovery cavity.
2. The wastepaper pulping system of claim 1, wherein: still be equipped with the high enriched slagging-off machine that is used for removing heavy impurity between continuous disintegrating system and the coarse screening system, the output of continuous disintegrating system and the access connection of high enriched slagging-off machine, the export of high enriched slagging-off machine and the input of coarse screening system are connected.
3. The wastepaper pulping system of claim 1 or 2, wherein: the continuous disintegrating system also comprises a D-type pulper and an impurity separator, wherein the D-type pulper, the impurity separator and a cylindrical sieve for the continuous disintegrating system are sequentially connected and arranged;
waste paper enters a D-type pulper through a chain plate conveyor, light impurity-containing pulp generated by the D-type pulper enters an impurity separator after being processed by a sediment well, enters a cylindrical sieve for a continuous disintegrating system after being separated again by the impurity separator, the cylindrical sieve for the continuous disintegrating system separates larger light impurities in the pulp, and good pulp in the D-type pulper enters a coarse screening system.
4. The wastepaper pulping system of claim 1 or 2, wherein: the coarse screening system also comprises a medium-concentration coarse screening machine and a flotation slag removal machine, wherein the medium-concentration coarse screening machine, the flotation slag removal machine and a cylindrical screen for the coarse screening system are sequentially connected and arranged;
and after the slurry entering the coarse screening system passes through a medium-concentration coarse screening machine, the tail slurry enters a flotation slag cleaning machine, and the tail slurry of the flotation slag cleaning machine enters a cylindrical screen for the coarse screening system to thoroughly separate fine light impurities from the slurry.
5. The wastepaper pulping system of claim 1, wherein: cleaning nozzles pointing to the screen seams are distributed on the cleaning water pipe, the cleaning water pipe and the machine body form axial guide fit, the cleaning water pipe is connected with a cleaning driving device, and the cleaning driving device drives the cleaning water pipe to reciprocate along the axial direction of the cleaning water pipe;
the spray water pipe is provided with spray nozzles pointing to the screen cylinder, and the water sprayed out of the spray nozzles is in a fan shape vertical to the axial direction of the screen cylinder.
6. The wastepaper pulping system of claim 5, wherein: the cleaning driving device comprises an electric push rod horizontally arranged with the cleaning water pipe, one end of the electric push rod is in transmission connection with a rotating motor, the rotating motor is located outside the machine body and is fixedly connected with the machine body, and the other end of the electric push rod is fixedly connected with the cleaning water pipe through an embracing ring.
7. The wastepaper pulping system of claim 1, wherein: the lower part of the machine body is provided with a downward contracted slurry receiving disc structure, and the slurry discharge port is arranged at the lower position of the slurry receiving disc structure.
8. The wastepaper pulping system of claim 1, wherein: the organism is closed structure, and is equipped with the access hole on the organism, and access hole department is equipped with the shrouding rather than open-close type connection.
9. The wastepaper pulping system of claim 1, wherein: the transmission device comprises a driving shaft, a driving motor and a speed reducer, wherein the driving shaft, the driving motor and the speed reducer are arranged on the upper side of the machine body in a supporting mode, the driving motor drives the driving shaft to rotate through the speed reducer, belt driving wheels are arranged at two end portions of the driving shaft respectively, a belt driven wheel is arranged at a position, corresponding to the driving belt wheel, on the screen drum, and the corresponding belt driving wheel and the belt driven wheel are connected.
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| CN201910710392.3A CN110396848B (en) | 2019-08-02 | 2019-08-02 | Waste paper pulping system |
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| CN201910710392.3A CN110396848B (en) | 2019-08-02 | 2019-08-02 | Waste paper pulping system |
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| CN110396848B true CN110396848B (en) | 2020-04-10 |
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| CN112878082B (en) * | 2021-03-12 | 2023-01-20 | 山东仁丰特种材料股份有限公司 | Preparation method of environment-friendly corrugated base paper for fruit and vegetable cold storage packaging |
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| CN205711536U (en) * | 2016-06-22 | 2016-11-23 | 台州市永丰纸业有限公司 | A kind of drum sieve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AT360828B (en) * | 1978-03-06 | 1981-02-10 | Escher Wyss Gmbh | SORTING DEVICE FOR FABRIC LIQUID RECOVERED FROM WASTE PAPER |
| CN108660832A (en) * | 2017-04-01 | 2018-10-16 | 安徽山鹰纸业股份有限公司 | A kind of paper production line pulping system |
| CN206625080U (en) * | 2017-04-01 | 2017-11-10 | 安徽山鹰纸业股份有限公司 | A kind of paper production line pulping system |
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| CN205711536U (en) * | 2016-06-22 | 2016-11-23 | 台州市永丰纸业有限公司 | A kind of drum sieve |
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