CN113152134B - Closed tearing pulp grinding system - Google Patents
Closed tearing pulp grinding system Download PDFInfo
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- CN113152134B CN113152134B CN202110537785.6A CN202110537785A CN113152134B CN 113152134 B CN113152134 B CN 113152134B CN 202110537785 A CN202110537785 A CN 202110537785A CN 113152134 B CN113152134 B CN 113152134B
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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
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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
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
Abstract
The invention discloses a closed type tearing and pulping system which comprises a double-screw extruding and tearing machine, wherein the double-screw extruding and tearing machine comprises a compressor shell and a sealed shell, a first screw and a second screw are arranged in the compressor shell, helical blades are arranged on the peripheries of the first screw and the second screw, the first screw and the second screw extend into the sealed shell, the first screw and the second screw are parallel to each other and are meshed with each other, a feeding hole is formed in the upper end, far away from the sealed shell, of the compressor shell, a discharging hole is formed in the lower end of the sealed shell, and the discharging hole is connected with a high-concentration pulping system in a sealing mode. The closed tearing grinding system disclosed by the invention can avoid material overflow and raw material waste, does not need to discharge waste steam generated by extrusion tearing, improves the workshop environment, can reduce equipment investment and simplifies the pulping process flow.
Description
Technical Field
The invention relates to the technical field of pulping and papermaking mechanical equipment, in particular to a closed tearing and pulping system.
Background
Pulp is a major raw material for the paper industry and originates from various fiber-rich plant materials. The process of extracting fiber from plant material is known as pulping. The extrusion and tearing of the wood chips are one of the key processes of the production of chemi-mechanical pulp, and the main equipment of the production is an extrusion and tearing machine which comprises a single-screw extrusion and tearing machine and a double-screw extrusion and tearing machine.
When the traditional double-screw extrusion tearing machine is used, problems often occur in the process that the slurry leaves a compression area of the double-screw extrusion tearing machine and is transferred to a next process. 1. The fluctuation of the material flow in the production process often causes the material overflow equipment to spill to the ground, which not only influences the production environment, but also causes certain waste of raw materials; 2. during the extrusion tearing process, most of the mechanical energy is converted into heat energy and is discharged out of the machine in the form of water vapor. The waste steam is collected by the hood fan and discharged to the outside. Because a large amount of air is mixed in the waste steam, the heat value is extremely low, the heat energy cannot be economically recovered, the energy waste is caused, and the management of the plant environment is not facilitated; in addition, the waste steam is not completely collected, and part of the waste steam can be diffused in a workshop to cause the air quality deterioration of the workshop, especially in the northern cold season, the waste steam is condensed into fog, the sight of operators is influenced, and the management of safe production is not facilitated; 3. the material crushed by the extrusion and tearing machine needs to be forcibly conveyed into a high-consistency pulping machine for pulping through subsequent equipment, as shown in fig. 6, when the pressure high-consistency pulping machine is used, the material is required to be forcibly conveyed to the pressure high-consistency pulping machine through a collection screw conveyor, a lifting screw conveyor and a screw feeder in sequence after coming out of the extrusion and tearing machine; as shown in fig. 7, when the normal-pressure high-concentration refiner is used, the materials are required to be forcibly conveyed to the normal-pressure high-concentration refiner through the collecting screw conveyor and the lifting screw conveyor in sequence after coming out of the extrusion tearing machine, so that the process is complicated, and the equipment cost is high.
The invention discloses a closed tearing and grinding system, which is used for solving the problems.
Disclosure of Invention
The invention aims to provide a closed tearing refining system to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: the closed type tearing and pulping system comprises a double-screw extruding and tearing machine, wherein the double-screw extruding and tearing machine comprises a compressor shell and a sealing shell, wood chips are extruded and torn in the compressor shell to prepare for subsequent wood chip fiberization, a first screw and a second screw are arranged in the compressor shell, helical blades are arranged on the peripheries of the first screw and the second screw, each helical blade is composed of a forward propelling screw and a reverse propelling screw, and 2-3 sections of screws are sleeved on a common screw in a penetrating mode. During the advancing process of the wood chips, the wood chips are compressed, torn and released once in a cavity formed by a spiral blade matching machine shell through a section of spiral every time, a section of solid material plug is formed, the first screw rod and the second screw rod extend into the sealed machine shell, the first screw rod and the second screw rod are parallel to each other and are meshed with each other, the wood chips are pushed, extruded and kneaded into thread-shaped materials in the pressed and torn machine shell when the first screw rod and the second screw rod rotate, the upper end, far away from the sealed machine shell, of the compressed machine shell is provided with a feed inlet, the feed inlet is used for adding the wood chips into the compressed machine shell, the lower end of the sealed machine shell is provided with a discharge port, the discharge port is used for discharging the kneaded wood chips into a pulping process, the discharge port is connected with a high-concentration pulping system in a sealing mode, and the high-concentration pulping system is used for further processing thread-shaped pulp into high-concentration pulp. The wood chips are compressed into a plurality of high-density material plugs by the first screw and the second screw in the compressor shell in a segmented mode, the material plugs are released after being separated from the compressor shell and fall into the high-consistency pulping system under the action of gravity, the compressor shell is connected with the high-consistency pulping system in a sealing mode, material leakage is avoided, meanwhile, steam in the high-consistency pulping system is prevented from flowing into the compressor shell, and high-pressure steam in the steaming vertical pipe is prevented from flowing back through the compressor shell to be sprayed and leaked. When the first screw and the second screw rotate to knead and break the wood chips, a part of mechanical energy is converted into heat energy to generate certain waste steam, and the waste steam can enter a high-concentration pulping system along with materials and does not need to be provided with a waste steam collecting and discharging device to discharge the waste steam.
Preferably, the compressor shell includes an upper shell and a lower shell. The compressor shell is arranged as the upper shell and the lower shell, so that the compressor shell is convenient to maintain and overhaul.
Preferably, the compressor shell is connected with the sealing shell through a first butt flange, so that the compressor shell is connected with the sealing shell in a sealing mode, and the upper shell is butted with the lower shell through a second butt flange, so that the upper shell is connected with the lower shell in a sealing mode.
Preferably, the one end of a screw rod and the one end of a second screw rod penetrate out of the sealed casing, the other end of the screw rod and the other end of the second screw rod penetrate out of the compressor casing, and the two ends of the first screw rod and the two ends of the second screw rod, which penetrate out of the sealed casing and the compressor casing, are connected with the bearing seats.
Preferably, a shaft seal is arranged on the wall surface of the sealing machine shell penetrating through the first screw. The shaft seal prevents leakage of materials caused by rotation of the first screw.
Preferably, high enriched defibrination system includes steaming riser, a belt feeder, the high-concentration fiberizer of pressure, whirl thick liquid separator, discharge gate intercommunication steaming riser, steaming riser is used for utilizing the steam action further to soften the processing material, steaming riser intercommunication belt feeder, a belt feeder is arranged in carrying the even to the high-concentration fiberizer of pressure with the material, a belt feeder intercommunication high-concentration fiberizer of pressure, the high-concentration fiberizer of pressure is used for grinding the material into the thick liquid, the high-concentration fiberizer of pressure intercommunication whirl thick liquid separator, whirl thick liquid separator is used for separating thick liquids and exhaust steam, and thick liquids and exhaust steam separation back get into the follow-up equipment and carry out next process. The discharge port at the lower end of the sealed machine shell of the double-screw extrusion tearing machine is installed at a high position, so that the discharge port is connected with the steaming vertical pipe in a sealing manner, and the material is compressed into a high-density material plug, and the sealed machine shell is connected with the steaming vertical pipe in a sealing manner, so that a collecting screw conveyor, a lifting screw conveyor and a screw feeder in a traditional system are omitted. Waste steam carried in the material also need not additionally to handle, along with during the material gets into the decatizing riser, has increased the efficiency utilization ratio, still can save waste steam and collect discharge apparatus's setting.
Preferably, the rotary propeller separator is communicated with a first waste heat recovery tower. The first waste heat recovery tower is used for recovering heat so as to improve energy efficiency utilization.
Preferably, high-consistency refining system includes No. two belt feeders, ordinary pressure high-consistency refiner, screw conveyer, no. two belt feeders of discharge gate intercommunication, no. two belt feeders are arranged in being used for the even transport to ordinary pressure high-consistency refiner of material, no. two belt feeders intercommunication ordinary pressure high-consistency refiner, ordinary pressure high-consistency refiner is used for grinding the material into thick liquid, ordinary pressure high-consistency refiner intercommunication screw conveyer, screw conveyer is arranged in getting into next process with thick liquid transport. The discharge port at the lower end of the sealing machine shell is arranged at a high position, so that the discharge port is connected with the second belt feeder in a sealing manner, and the material is compressed into a high-density material plug, and the sealing machine shell is connected with the second belt feeder in a sealing manner, so that a collecting screw conveyor and a lifting screw conveyor in a traditional system are omitted. Waste steam carried in the material also need not additionally to handle, along with the material gets into No. two belt feeders in, has increased the efficiency utilization ratio, still can save waste steam and collect discharge device's setting.
Preferably, the screw conveyer is communicated with a second waste heat recovery tower. And the second waste heat recovery tower is used for recovering heat so as to improve energy efficiency utilization.
Compared with the prior art, the invention has the following beneficial effects:
1. when the wood chips are crushed to a certain state by the double-screw extrusion and tearing machine, the wood chips are pushed into the sealed shell, materials are gradually compressed and torn along with the mutual extrusion action of forward and reverse screws to form a high-density material plug, the material plug falls into the high-concentration pulping system under the action of gravity, the sealed shell connects the extrusion and tearing shell and the high-concentration pulping system in a sealing manner, the leakage of the materials is avoided, and high-pressure steam in the steam vertical tube is prevented from being sprayed back and leaking out through the extrusion and tearing shell;
2. according to the closed tearing and grinding system disclosed by the invention, when the first screw and the second screw rotate to knead and break the wood chips, most of mechanical energy is converted into heat energy to generate certain waste steam, the waste steam can enter the high-concentration grinding system along with materials to be utilized, and a waste steam collecting and discharging device is not required to be additionally arranged at the double-screw extrusion and tearing machine to discharge the waste steam, so that the energy efficiency utilization rate is improved, and the workshop environment is improved;
3. the invention discloses a closed tearing pulp grinding system, which has the advantages that materials can be compressed into a high-density material plug by a sealed casing, the material plug has a certain pressure separation effect, and the sealed casing is hermetically connected with a steaming vertical pipe, so that when a high-pressure high-consistency pulp grinder is used, a collection screw conveyor, a lifting screw conveyor and a screw feeder in the traditional system are not required to be used for forcibly feeding materials to the high-pressure high-consistency pulp grinder; when the normal-pressure high-concentration pulping machine is used, a collection screw conveyor and a lifting screw conveyor in the traditional system are not needed to be used for forcibly feeding materials to the normal-pressure high-concentration pulping machine, so that the equipment investment is reduced to a great extent, and the process flow is optimized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a twin-screw extrusion tearing machine of the present invention;
FIG. 2 is a top view of the twin screw extrusion tearing machine of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view at A-A of the twin screw extrusion tearing machine of the present invention;
FIG. 4 is a schematic view of a first embodiment of a closed tear refining system of the present invention;
FIG. 5 is a schematic view of a second embodiment of a closed tear refining system of the present invention;
FIG. 6 is a first schematic diagram of a conventional apparatus of the present invention;
FIG. 7 is a second schematic diagram of a conventional apparatus of the present invention;
in the figure: a compressor shell-1; sealing the shell-2; a first screw rod-3; screw II-4; a feed inlet-5; a discharge port-6; an upper housing-7; a lower housing-8; a first butt flange-9; a second butt flange-10; a bearing seat-11; a shaft seal-12; steaming the stand pipe-13; a first belt feeder-14; high-concentration pressure pulping machine-15; cyclone separator-16: a first waste heat recovery tower-17; a second belt feeder-18; normal pressure high concentration pulping machine-19; a screw conveyor-20; a second waste heat recovery tower-21; a helical blade-22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: in the embodiment, a high-pressure high-concentration pulping machine is used for pulping, please refer to figures 1 to 4, the invention provides a technical scheme, a closed type tearing pulping system comprises a double-screw extruding and tearing machine, the double-screw extruding and tearing machine comprises a compressor shell 1 and a sealed shell 2, the interior of the compressor shell 1 is used for extruding and tearing wood chips to prepare for subsequent wood chip fiberization, a first screw 3 and a second screw 4 are arranged in the compressor shell 1, helical blades 22 are arranged on the peripheries of the first screw 3 and the second screw 4, the helical blades comprise a forward propelling screw and a reverse propelling screw, 2-3 sections of screws are generally sleeved on the screws, the wood chips are subjected to a compression-tearing-releasing action in a cavity formed by the matching machine shell of the helical blades every time the wood chips pass through one section of screw in the advancing process, A section of solid material plug is formed, the first screw rod 3 and the second screw rod 4 extend into the sealed casing 2, the first screw rod 3 and the second screw rod 4 are parallel to each other and are meshed with each other, wood chips are pushed, extruded and broken into a twisted shape in the press-tearing casing 1 when the first screw rod 3 and the second screw rod 4 rotate, a feeding hole 5 is formed in the upper end, away from the sealed casing 2, of the compressor casing 1, the feeding hole 5 is used for adding the wood chips into the compressor casing 1, a discharging hole 6 is formed in the lower end of the sealed casing 2, the discharging hole 6 is used for discharging the broken wood chips into a pulp grinding process, the discharging hole 6 is connected with a high-concentration pulp grinding system in a sealing mode, and the high-concentration pulp grinding system is used for further processing the twisted pulp into high-concentration paper pulp. The wood chip is compressed into a plurality of high-density material plugs by a first screw rod 3 and a second screw rod 4 in the compressor shell 1 in a segmented manner, the material plugs are released after being separated from the compressor shell 1 and fall under the action of gravity to enter a high-consistency pulping system, the compressor shell 1 and the high-consistency pulping system are hermetically connected by the sealing shell 2, the material leakage is avoided, meanwhile, the steam in the high-consistency pulping system is prevented from flowing into the compressor shell 1, and the high-pressure steam in the steam vertical pipe is prevented from flowing back through the compressor shell 1 and being sprayed and discharged. And when the first screw rod 3 and the second screw rod 4 rotate to knead the wood chips, a part of mechanical energy is converted into heat energy to generate certain waste steam, and the waste steam can enter a high-concentration pulping system along with the materials and is not required to be provided with a waste steam collecting and discharging device to discharge the waste steam.
The compressor shell 1 comprises an upper shell 7 and a lower shell 8. The compressor shell 1 is arranged into an upper shell 7 and a lower shell 8, so that the compressor shell is convenient to maintain and overhaul.
The compressor shell 1 is connected with the sealed shell 2 through a first butting flange 9, so that the compressor shell 1 is connected with the sealed shell 2 in a sealing mode, the upper shell 7 is butted with the lower shell 8 through a second butting flange 10, and the upper shell 7 is connected with the lower shell 8 in a sealing mode.
One end of the first screw rod 3 and one end of the second screw rod 4 penetrate out of the sealed shell 2, the other end of the first screw rod 3 and the second screw rod 4 penetrate out of the compressor shell 1, and the two ends of the first screw rod 3 and the second screw rod 4 penetrating out of the sealed shell 2 and the compressor shell 1 are both connected with the bearing seat 11.
The high-consistency refining system comprises a steaming vertical pipe 13, a first belt type feeder 14, a pressure high-consistency refiner 15 and a rotary pulp separator 16, a discharge port 6 is communicated with the steaming vertical pipe 13, the steaming vertical pipe 13 is used for further softening and processing materials under the action of steam, the steaming vertical pipe 13 is communicated with the first belt type feeder 14, the first belt type feeder 14 is used for uniformly conveying the materials to the pressure high-consistency refiner 15, the first belt type feeder 14 is communicated with the pressure high-consistency refiner 15, the pressure high-consistency refiner 15 is used for refining the materials into pulp, the pressure high-consistency refiner 15 is communicated with the rotary pulp separator 16, the rotary pulp separator 16 is used for separating pulp and waste steam, and the separated pulp and waste steam enter subsequent equipment for the next procedure. The discharge port 6 at the lower end of the sealed casing 2 is installed at a high position, so that the discharge port 6 is connected with the steaming vertical pipe 13 in a sealing way, and because the material is compressed into a high-density material plug, and the sealed casing 2 and the steaming vertical pipe 13 are connected in a sealing way, a collecting screw conveyor, a lifting screw conveyor and a screw feeder in the traditional system are omitted. Waste steam carried in the material also need not additionally to handle, along with the material gets into decatize riser 13 in, has increased the efficiency utilization ratio, still can save waste steam and collect discharge apparatus's setting.
The rotary slurry separator 16 is communicated with a first waste heat recovery tower 17. The first waste heat recovery tower 17 is used for recovering heat to improve energy efficiency utilization.
When the closed type tearing and grinding system provided by the embodiment 1 is applied to a chemical mechanical pulp production line with 10 ten thousand tons of annual output, 1 spiral conveyor is not collected, and the power of a bearing seat is 11kW; 1 lifting screw conveyor is cancelled, and the power of a bearing seat is 22kW; one ventilator is omitted, and the power of a bearing seat is 2.2kW; 1 screw feeder is omitted, and the power of a bearing seat is 75kW; the recovered heat energy is increased by 100MJ/h, the installed capacity is reduced by 110.2kW in total, the equipment investment is reduced by 35 ten thousand yuan, and the workshop production environment is obviously improved.
Example 2: in the embodiment, a normal-pressure high-concentration pulping machine is used for pulping, please refer to fig. 1-3 and 5, the invention provides a technical scheme, the closed type tearing pulping system comprises a double-screw extrusion tearing machine, the double-screw extrusion tearing machine comprises a compressor shell 1 and a sealed shell 2, the compression casing 1 is used for extrusion tearing of wood chips and preparing for subsequent wood chip fiberization, a first screw 3 and a second screw 4 are arranged in the compressor shell 1, helical blades 22 are arranged on the peripheries of the first screw 3 and the second screw 4 and form a section by a forward propelling screw and a reverse propelling screw, 2-3 sections of screws penetrate through the general screws, the wood chips are subjected to primary compression-tearing-releasing action in a cavity formed by the helical blades and the compressor shell to form a section of solid material plug when passing through the section of screw in the advancing process, the first screw 3 and the second screw 4 extend into the sealed shell 2, the first screw 3 and the second screw 4 are mutually parallel and meshed, the wood chips are enabled to be pushed into the sealed shell 1 to form a material plug when the first screw 3 and the second screw 4 rotate, the sealed shell 2 is used for feeding port of the sealed shell, the sealed material outlet 6 for feeding and kneading the wood chips into the sealed shell, the sealed shell 6, and the sealed shell 2, and the sealed material outlet for feeding port 6 for feeding process of the high-grinding machine shell, and the high-concentration pulping machine shell is arranged at the sealed material outlet, and the sealed material outlet 6 for feeding process of the high-grinding system, and the high-grinding machine shell, and the high-concentration wood chips. The wood chips are compressed into a plurality of high-density material plugs by the first screw 3 and the second screw 4 in the compressor shell 1 in a segmented manner, the material plugs are released after being separated from the compressor shell 1 and fall into the high-consistency pulping system under the action of gravity, the compressor shell 1 is connected with the high-consistency pulping system in a sealing manner through the sealing shell 2, the material leakage is avoided, and meanwhile, steam in the high-consistency pulping system is prevented from flowing into the compressor shell 1. And when the first screw rod 3 and the second screw rod 4 rotate to knead the wood chips, a part of mechanical energy is converted into heat energy to generate certain waste steam, and the waste steam can enter a high-concentration pulping system along with the materials and is not required to be provided with a waste steam collecting and discharging device to discharge the waste steam.
The compressor shell 1 includes an upper shell 7 and a lower shell 8. The compressor shell 1 is arranged into an upper shell 7 and a lower shell 8, so that the compressor shell is convenient to maintain and overhaul.
The compressor shell 1 and the sealed shell 2 are connected through a first butting flange 9, so that the compressor shell 1 and the sealed shell 2 are connected in a sealing mode, the upper shell 7 and the lower shell 8 are butted through a second butting flange 10, and the upper shell 7 and the lower shell 8 are connected in a sealing mode.
One end of the first screw rod 3 and one end of the second screw rod 4 penetrate out of the sealed shell 2, the other end of the first screw rod 3 and the second screw rod 4 penetrate out of the compressor shell 1, and the two ends of the first screw rod 3 and the second screw rod 4 penetrating out of the sealed shell 2 and the compressor shell 1 are both connected with the bearing seat 11.
A shaft seal 12 is arranged on the wall surface of the sealing machine shell 2 penetrating through the first screw rod 3. Shaft seal 12 prevents leakage of material when screw No. one 3 is rotated.
The high-consistency pulping system comprises a second belt feeder 18, a normal-pressure high-consistency pulping machine 19 and a screw conveyor 20, wherein a discharge port 6 is communicated with the second belt feeder 18, the second belt feeder 18 is used for uniformly conveying materials to the normal-pressure high-consistency pulping machine 19, the second belt feeder 18 is communicated with the normal-pressure high-consistency pulping machine 19, the normal-pressure high-consistency pulping machine 19 is used for grinding the materials into pulp, the normal-pressure high-consistency pulping machine 19 is communicated with the screw conveyor 20, and the screw conveyor 20 is used for conveying the pulp into the next working procedure. The discharge port 6 at the lower end of the sealed casing 2 is installed at a high position, so that the discharge port 6 is connected with the second belt feeder 18 in a sealing way, and the materials are compressed into high-density plugs, and the sealed casing 2 is connected with the second belt feeder 18 in a sealing way, so that a collecting screw conveyor and a lifting screw conveyor in a traditional system are omitted. Waste steam carried in the material does not need to be additionally treated, the energy efficiency utilization rate is increased along with the fact that the material enters the second belt type feeder 18, and the waste steam collecting and discharging device can be omitted.
The screw conveyor 20 is communicated with a second waste heat recovery tower 21. The second waste heat recovery tower 21 is used for recovering heat so as to improve energy efficiency utilization.
When the closed type tearing and grinding system provided by the embodiment 2 is applied to a chemical mechanical pulp production line with 10 ten thousand tons of annual output, 1 spiral conveyor is not collected, and the power of a bearing seat is saved by 11kW; 1 lifting screw conveyor is omitted, and the power of a bearing seat is saved by 22kW; one ventilator is omitted, and the power of a bearing seat is saved by 2.2kW; the recovered heat energy is increased by 100MJ/h, the installed capacity is reduced by 35.2kW in total, the equipment investment is reduced by 5 ten thousand yuan, and the workshop production environment is obviously improved.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a closed tears defibrination system, includes twin-screw extrusion tearing machine which characterized in that: the double-screw extrusion tearing machine comprises a compressor shell (1) and a sealed shell (2), wherein a first screw (3) and a second screw (4) are arranged in the compressor shell (1), helical blades (22) are arranged on the peripheries of the first screw (3) and the second screw (4), the first screw (3) and the second screw (4) extend into the sealed shell (2), the first screw (3) and the second screw (4) are parallel to each other and are meshed with each other, a feeding hole (5) is formed in the upper end, far away from the sealed shell (2), of the compressor shell (1), a discharging hole (6) is formed in the lower end of the sealed shell (2), the discharging hole (6) is connected with a high-concentration pulping system in a sealing mode, and the position of the discharging hole (6) is higher than that of the high-concentration pulping system;
the high-consistency pulping system comprises a steaming vertical pipe (13), a first belt feeder (14) and a pressure high-consistency pulping machine (15), the discharge port (6) is communicated with the steaming vertical pipe (13), the steaming vertical pipe (13) is communicated with the first belt feeder (14), and the first belt feeder (14) is communicated with the pressure high-consistency pulping machine (15); or the high-consistency refining system comprises a second belt feeder (18) and a normal-pressure high-consistency refiner (19), the discharge port (6) is communicated with the second belt feeder (18), and the second belt feeder (18) is communicated with the normal-pressure high-consistency refiner (19).
2. A closed tear refining system according to claim 1, characterized in that: the compressor shell (1) comprises an upper shell (7) and a lower shell (8).
3. A closed tear refining system according to claim 2, characterized in that: the compressor shell (1) is connected with the sealing shell (2) through a first butt flange (9), and the upper shell (7) is in butt joint with the lower shell (8) through a second butt flange (10).
4. A closed tear refining system according to claim 1, characterized in that: one end of the first screw rod (3) and the second screw rod (4) penetrates out of the sealing shell (2), the other end of the first screw rod and the second screw rod (4) penetrates out of the compressor shell (1), and bearing seats (11) are connected to the two ends of the first screw rod (3) and the second screw rod (4) which penetrate out of the sealing shell (2) and the compressor shell (1).
5. A closed tear refining system according to claim 1, characterized in that: and a shaft seal (12) is arranged on the wall surface of the sealing machine shell (2) penetrating through the first screw rod (3).
6. A closed tear refining system according to claim 1, characterized in that: the high-consistency refining system further comprises a rotary pulp separator (16), and the pressure high-consistency refiner (15) is communicated with the rotary pulp separator (16).
7. A closed tear refining system according to claim 6, characterized in that: the rotary slurry separator (16) is communicated with a first waste heat recovery tower (17).
8. A closed tear refining system according to claim 1, characterized in that: the high-consistency refining system further comprises a screw conveyor (20), and the normal-pressure high-consistency refiner (19) is communicated with the screw conveyor (20).
9. A closed tear refining system according to claim 8, characterized in that: the spiral conveyor (20) is communicated with a second waste heat recovery tower (21).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110537785.6A CN113152134B (en) | 2021-05-17 | 2021-05-17 | Closed tearing pulp grinding system |
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|---|---|---|---|
| CN202110537785.6A CN113152134B (en) | 2021-05-17 | 2021-05-17 | Closed tearing pulp grinding system |
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| CN113152134A CN113152134A (en) | 2021-07-23 |
| CN113152134B true CN113152134B (en) | 2023-01-10 |
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Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE386694B (en) * | 1973-09-06 | 1976-08-16 | Sca Development Ab | KIT FOR TREATMENT OF FIBER MATERIAL WHEN THE FIBER MATERIAL IS FIRST PREHEATED WITH ANGA IN A PRE-MAKER |
| FR2319737A1 (en) * | 1975-07-31 | 1977-02-25 | Creusot Loire | PAPER PULP MANUFACTURING PROCESS AND MACHINE |
| US6899791B2 (en) * | 1997-08-08 | 2005-05-31 | Andritz Inc. | Method of pretreating lignocellulose fiber-containing material in a pulp refining process |
| US6364998B1 (en) * | 1995-06-12 | 2002-04-02 | Andritz Inc. | Method of high pressure high-speed primary and secondary refining using a preheating above the glass transition temperature |
| SE514960C2 (en) * | 1999-09-23 | 2001-05-21 | Lars Obitz | Cellulose material feed device |
| JP2003119679A (en) * | 2001-10-17 | 2003-04-23 | Aikawa Iron Works Co Ltd | Apparatus for heating pulp |
| US7300540B2 (en) * | 2004-07-08 | 2007-11-27 | Andritz Inc. | Energy efficient TMP refining of destructured chips |
| CN101397762B (en) * | 2008-10-13 | 2011-12-28 | 张泽光 | Pulp manufacturing technology and material preprocessor |
| SE0900298A1 (en) * | 2009-03-09 | 2010-05-11 | Lars Obitz | Device for feeding cellulose material by forming a pressure-tight material plug |
| CN102182085B (en) * | 2011-04-30 | 2013-02-20 | 李刚荣 | Cracking impregnator |
| CN103046416B (en) * | 2012-12-11 | 2014-02-05 | 广西金桂浆纸业有限公司 | System for recovering foul and waste heat steam from high-consistency pulping production line for pulping by PRC(preconditioning refining chemical)-APMP(alkaline peroxide mechanical pulp) |
| CN103088684A (en) * | 2013-03-01 | 2013-05-08 | 捷雅科技（昆山）有限公司 | Defibrator system and defibrination method thereof |
| CN104711880B (en) * | 2015-01-26 | 2016-08-24 | 汶瑞机械(山东)有限公司 | A kind of chemi-mechanical pulp pulping process |
| CN104846676B (en) * | 2015-05-25 | 2016-08-24 | 南宁糖业股份有限公司 | A kind of method utilizing Eucalyptus sheet to produce bleaching reducing rules |
| CN204982521U (en) * | 2015-07-31 | 2016-01-20 | 重庆理文卫生用纸制造有限公司 | Living paper's high enriched mill thick liquid system |
| CN111188216A (en) * | 2020-01-19 | 2020-05-22 | 北京鑫泽清源植物秸杆技术有限公司 | Straw raw material combination and hot-pressing cleaning technology and device thereof |
| CN212128653U (en) * | 2020-04-22 | 2020-12-11 | 郑州磊展科技造纸机械有限公司 | Shredding spiral with steam preheating function |
-
2021
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