CN113981728A - Fluid mixing and fine breaking machine and efficiency design method thereof - Google Patents
Fluid mixing and fine breaking machine and efficiency design method thereof Download PDFInfo
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- CN113981728A CN113981728A CN202111198526.1A CN202111198526A CN113981728A CN 113981728 A CN113981728 A CN 113981728A CN 202111198526 A CN202111198526 A CN 202111198526A CN 113981728 A CN113981728 A CN 113981728A
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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
- D21D1/22—Jordans
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Abstract
The invention relates to a fine breaking machine, in particular to a fluid mixing fine breaking machine and an efficiency design method thereof. The slurry or the nitrocotton fiber is further mixed, cut or finely cut, defibered, homogenized and the like by adopting a fluid hybrid power action technology of various forces such as a turbulent power effect, high-frequency fluctuation, a centrifugal force, a shearing force, a friction force and the like, so that the volume and the weight of equipment are reduced, the cutting effect and the paper strength are improved, or the ultrafine nitrocotton with large specific surface area and uniform quality is obtained.
Description
Technical Field
The invention relates to a fine breaking machine, in particular to a fluid mixing fine breaking machine and an efficiency design method thereof.
Background
At present, the following technologies are mainly adopted for slurry fiber cutting or nitrocellulose fiber fine cutting in the light industry and paper making or war industry:
the first prior art is as follows: adopts a single or double disc pulping machine or a fine breaking machine, and has the characteristics that: 1) after the split disc type abrasive disc (namely the fixed disc and the movable disc) is used, the tooth parts are not abraded uniformly and are easy to be toothed, so that the beating or fine breaking quality and production are influenced; 2) some are mechanical manual tool advancing and retracting mechanisms, namely worm and gear speed reducing mechanisms, and have high operation strength and low automation degree; 3) the rotating speed of the movable disc is low (generally 750-1000 r/min), the size is large, and the structure is heavy.
The second prior art is: the conical pulping machine or the fine breaking machine is adopted, and the characteristics are as follows: 1) an integral conical grinding disc (namely a fixed disc and a movable disc) is adopted, so that the casting difficulty is high; 2) the cantilever load-type structure is easy to generate deflection, so that beating or fine breaking quality is influenced; the rotating speed of the movable disc is low (generally 500-1000 r/min), so that the production efficiency is influenced; 3) the volume is large and the structure is heavy.
Disclosure of Invention
The invention mainly solves the defects in the prior art and provides a fluid mixing and fine breaking machine which adopts a fluid mixing power action technology of various forces such as turbulent power effect, high-frequency fluctuation, centrifugal force, shearing force, friction force and the like to further mix, cut or finely break, untwist, homogenize and the like pulp or nitrocellulose fibers so as to reduce the volume and weight of equipment and improve the cutting effect and the paper forming strength or obtain ultrafine nitrocellulose with large specific surface and uniform quality and a fluid mixing and fine breaking machine efficiency design method thereof.
The technical problem of the invention is mainly solved by the following technical scheme:
the utility model provides a fluid thoughtlessly moves carefully machine of cutting off, includes casing and base, the upper portion of base be equipped with the suspension part that the base is fixed, the left end of suspension part be equipped with the casing that suspension part is fixed mutually, the suspension part in be equipped with main shaft and the main shaft that stretches into to the casing and pass through to be the motor transmission, motor and main shaft between link through the shaft coupling, the inner wall of casing be equipped with half embedded regulation seat and the head of adjusting the seat and be equipped with the protecgulum, the casing in be equipped with the export stub pipe flange that is linked together with the casing, the left end cover of main shaft have a plurality of fixed superimposed movable fluted discs of suit formula in proper order and movable fluted disc rotate along with the main shaft rotation, the inner wall of regulation seat be equipped with a plurality of fixed superimposed fixed fluted discs of suit formula in proper order, movable fluted disc and fixed fluted disc form tooth portion high frequency passageway between movable fluted disc and fixed fluted disc, the bottom of last movable fluted disc is equipped with the high frequency passageway that carries out synchronous rotatory terminal awl dish and tooth portion passageway along with the main shaft The outlet is communicated with the tail end sawtooth-shaped conical disc, the outer wall of the movable fluted disc, the inner wall of the fixed fluted disc and the outer wall of the tail end sawtooth-shaped conical disc are respectively provided with a tooth part, the tail end sawtooth-shaped conical disc and the outlet short pipe flange are distributed in a matching connection mode, and the head of the main shaft is provided with a centrifugal stirring wheel.
Preferably, the number of the movable fluted discs is 3-5, and the number of the movable fluted discs is equal to that of the fixed fluted discs; the cross section of the tooth part high-frequency channel is distributed in a conical shape, and the diameter of the tooth part high-frequency channel is increased from left to right in sequence.
Preferably, the tooth parts of the fixed tooth disc and the tail end sawtooth-shaped conical disc are straight teeth or inclined teeth respectively, and each tooth part is in a whole strip shape or sawtooth; the number of teeth of each movable fluted disc and each tail end sawtooth-shaped conical disc is 10-90, and the number of teeth of each fixed fluted disc is 30-150; the diameter of the high-frequency channel of the tooth part is 0.08-0.16 mm in clearance.
Preferably, the taper angle in the movable fluted disc is 10 degrees to 12 degrees, and the taper angle in the tail sawtooth-shaped taper disc is 42 degrees to 45 degrees.
Preferably, the movable fluted disc and the tail end sawtooth-shaped conical discs are fastened through a plurality of rod inserting bolts, the conical tooth gap between the fixed fluted disc and the movable fluted disc is adjusted through the fastening bolts, the main shaft and the tail end sawtooth-shaped conical discs are sealed through an inward flow type single machine seal shaft seal component, and a flushing valve used for flushing an inner cavity at the shaft seal position is arranged in the suspension inward flow type single machine seal shaft seal component.
Preferably, the centrifugal stirring wheel is a centrifugal straight blade, an arc blade or a twisted blade, and the number of the blades is 12-24.
A fluid mixing and fine breaking machine efficiency design method of a fluid mixing and fine breaking machine is characterized by comprising the following steps:
the cutting or fine-cutting efficiency of the fluid mixing fine-cutting machine can be determined by the number of fine-cutting times L per unit lengthCTo indicate that is
(number of fine cuts per unit length/s);
wherein: z is a radical of1 moveIs the number of teeth, z, of the first moving gear ring on the nested conical moving gear disc1 decidesIs the number of teeth, l, of the first fixed gear ring on the sleeved type conical fixed gear disc1Is the length m, alpha of the first movable gear ring or fixed gear ring on the sleeved tapered movable gear disc or fixed gear disc1The included angle between the teeth of the first moving gear ring on the sleeved type conical moving gear disc and the teeth of the first fixed gear ring on the sleeved type conical fixed gear disc is Z2 moveIs the number of teeth, z, of the second movable gear ring on the nested conical movable gear disk2 decideIs the number of teeth, l, of a second fixed gear ring on the sleeved type conical fixed gear disc2The length m, alpha of the second movable gear ring or fixed gear ring on the sleeved tapered movable gear disc or fixed gear disc2The included angle between the teeth of the second movable gear ring on the sleeved conical movable gear disc and the teeth of the second fixed gear ring on the sleeved conical fixed gear disc is degrees. z is a radical ofPowderThe number of teeth on the end sawtooth-shaped conical disk, /)PowderThe length of the cone disc with a sawtooth-shaped tail end is m; and n is the rotation frequency of the sleeved conical movable fluted disc or the tail end sawtooth-shaped conical disc, and r/min.
The main work pieces in the fluid mixing and fine breaking machine are a sleeved type conical fixed tooth disc, a sleeved type conical movable tooth disc, a centrifugal stirring wheel and a tail end sawtooth-shaped conical disc, all fixed tooth rings in the sleeved type conical fixed tooth disc are sequentially overlapped together from large to small, are positioned and prevented from rotating through anti-rotating pins and are sleeved in an adjusting seat; all the movable gear rings in the sleeved type conical movable gear disc are sequentially overlapped together from small to large and then sleeved with the tail end sawtooth-shaped conical disc, are fixedly installed through a rod-inserting stud, a cap-shaped nut and the like, are sleeved on the main shaft, are prevented from rotating by a key, and are locked by a locking nut and a locking washer; the centrifugal stirring wheel is sleeved on the main shaft, and is prevented from rotating by a key and locked by a stirring wheel nut and a stop washer. The belt inlet front cover and the adjusting seat are fastened through a fastening stud, are positioned and prevented from rotating through an anti-rotating pin and are sealed through an O-shaped sealing ring, and are fastened through the fastening stud after a gap between the sleeved type conical fixed fluted disc and the sleeved type conical movable fluted disc is adjusted through a distance adjusting bolt; the adjusting seat and the machine shell are sealed through an O-shaped sealing ring 11, the machine shell is fastened on a suspension component through a fastening stud, and an outlet short pipe flange is screwed (a thread is wound with a raw material belt for sealing) on the machine shell; the flushing valve is fastened on the inner flow type single-machine seal shaft seal component and is mainly used for flushing an inner cavity at the shaft seal position; the fixed cover flange is fastened on the suspension component through a bolt and is mainly used for installing a coupling safety cover; the drum-shaped gear coupling is used for connecting the suspension component and the motor and transmitting power or torque; the base is used for fixedly mounting a suspension component, a motor or a motor pad and is fixed through a fastening stud and a fastening bolt. The centrifugal stirring wheel adopts centrifugal straight blades, arc blades or twisted blades, the number of the blades is 12-24 in total, and the centrifugal stirring wheel mainly plays a role in centrifugal defibering or leveling of slurry or nitrocotton; the area between the sleeved conical fixed fluted disc and the sleeved conical movable fluted disc mainly fluffs, disperses, divides, brooms, cuts or thins fibers and plays a certain pumping role on slurry or nitrocotton; the tail end sawtooth-shaped conical disc mainly plays roles in pumping, fluffing and leveling slurry or nitrocotton.
The sleeved type conical movable fluted disc is generally formed by combining 3-5 movable fluted rings, the sleeved type conical fixed fluted disc is generally formed by combining 3-5 fixed fluted rings, and the sleeved type conical fixed fluted disc is a single fluted ring; straight teeth or oblique teeth (oblique angle is generally 10-20 degrees) can be adopted by the tooth type in the sleeved conical fixed tooth disc or the tail end sawtooth-shaped conical disc 15, wherein each tooth part can be in a whole strip shape or a sawtooth shape; the number of teeth (including the tail end sawtooth-shaped conical disc) of each movable fluted disc is generally 10-90, and the number of teeth of each fixed fluted disc is generally 30-150; the cone angle in the sleeved conical movable fluted disc is generally 10-12 degrees, and the cone angle in the tail end sawtooth-shaped conical disc is generally 42-45 degrees; the radial clearance between the sleeved conical movable fluted disc and the sleeved conical fixed fluted disc is controlled to be between 0.08 and 0.16mm according to the process requirements; each ring gear in the sleeved type conical movable and fixed gear disc can be the same in tooth shape or different in tooth shape, and the tail end sawtooth-shaped conical disc adopts a tail end independent tooth shape; different tooth type combinations can meet different technological requirements of cutting or fine breaking, defibering, leveling and the like, for example, if the cutting action is required to be strong, 15-degree whole strip-shaped helical teeth can be used, the number of the teeth of the movable and fixed tooth sleeves is 30-90 in sequence from small to large, and the number of the teeth is a relatively prime number.
The working principle is as follows: the motor drives the fluid mixing fine breaking machine to rotate at a certain rotating speed through the drum-shaped gear coupling, slurry or nitrocotton is pumped into a centrifugally stirred transition flow area from an axial laminar flow area, and flows into a tooth high-frequency (the rotating frequency is generally 1500-3000 r/min) fluctuation area (defibering and dispersing fibers), a turbulence area (further defibering and dispersing fibers), a centrifugal area (pumping fibers), a shearing area (devillicating, cutting or fine breaking fibers), a friction area (brooming fibers) and the like in a sleeved type cone-shaped movable fixed-toothed disc (the cone angle is generally 10-12 degrees) under the action of centrifugal defibering or leveling, the turbulence area is subjected to the action of various mixed fluid power and shearing force in the process, and finally, the centrifugal force of a tooth part of a tail end sawtooth-shaped cone disc (the cone angle is generally 42-45 degrees) and the hydraulic pumping, defibering, the friction force between fibers, the fiber and the tooth part and the like, And (4) performing a leveling action, discharging the slurry or the nitrocotton from the radial middle part, and completing the pulping or fine breaking process.
Compared with the prior art, the invention has the advantages and effects that:
by adopting the fluid hybrid power technology, the fluid is fully mixed, the specific surface area of the fiber is large, and the quality is uniform.
The nested conical movable and fixed fluted disc is easy to cast and process, has various combinations of tooth shapes and tooth numbers, and can meet the process requirements of different cutting or fine cutting, untwining, leveling and the like;
the rotating frequency is high (generally 1500-3000 r/min), the friction loss of the disc is reduced, and the defibering and dispersing effects are strong; meanwhile, the device has small volume, light weight, simple and compact structure.
The gap of the sleeved conical movable fixed fluted disc is adjustable, and the service life of the sleeved conical movable fixed fluted disc is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structure of the left end of FIG. 1;
FIG. 3 is a schematic structural view of a movable toothed disc according to the present invention;
FIG. 4 is a schematic structural view of the distal serrated disk of the present invention;
FIG. 5 is a side view schematic of the structure of FIG. 4;
FIG. 6 is a schematic view of the centrifugal paddle according to the present invention.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1: as shown in the figure, the fluid mixing and fine breaking machine comprises a machine shell 1 and a base 2, wherein a suspension component 3 fixed with the base 2 is arranged on the upper portion of the base 2, the machine shell 1 fixed with the suspension component 3 is arranged at the left end of the suspension component 3, a main shaft 5 extending into the machine shell 1 is arranged in the suspension component 3, the main shaft 5 is driven by a motor 6, the motor 6 is connected with the main shaft 5 through a coupler 7, a semi-embedded adjusting seat 8 is arranged on the inner wall of the machine shell 1, a front cover 9 is arranged at the head of the adjusting seat 8, an outlet short pipe flange 10 communicated with the machine shell 1 is arranged in the machine shell 1, a plurality of sequentially sleeved fixed and superposed movable toothed discs 11 are sleeved at the left end of the main shaft 5, the movable toothed discs 11 rotate along with the rotation of the main shaft 5, a plurality of sequentially sleeved fixed and superposed fixed toothed discs 12 are arranged on the inner wall of the adjusting seat 8, a tooth high-frequency channel 13 is formed between the movable fluted disc 11 and the fixed fluted disc 12, a tail end sawtooth-shaped conical disc 14 which rotates synchronously with the main shaft 5 is arranged at the bottom of the last movable fluted disc 11, an outlet of the tooth high-frequency channel 13 is communicated with the tail end sawtooth-shaped conical disc 14, tooth parts 15 are respectively arranged on the outer wall of the movable fluted disc 11, the inner wall of the fixed fluted disc 12 and the outer wall of the tail end sawtooth-shaped conical disc 14, the tail end sawtooth-shaped conical discs 14 and the outlet short pipe flange 10 are distributed in a matching manner, and a centrifugal stirring wheel 16 is arranged at the head of the main shaft 5.
The number of the movable fluted discs 11 is 3-5, and the number of the movable fluted discs 11 is equal to that of the fixed fluted discs 12; the cross section of the tooth part high-frequency channel 13 is distributed in a cone shape, and the diameters of the tooth part high-frequency channels 13 are sequentially increased from left to right.
The tooth parts of the fixed tooth disc 12 and the tail end sawtooth-shaped conical disc 14 are straight teeth or inclined teeth respectively, and each tooth part 15 is a whole strip-shaped or sawtooth; the number of teeth of each movable fluted disc 11 and each tail end sawtooth-shaped conical disc 14 is 10-90, and the number of teeth of each fixed fluted disc 12 is 30-150; the diameter of the high-frequency channel 13 of the tooth part is 0.08-0.16 mm in clearance.
The taper angle in the movable fluted disc 11 is 10-12 degrees, and the taper angle in the tail end sawtooth-shaped taper disc 14 is 42-45 degrees.
The movable fluted disc 11 and the tail end sawtooth-shaped conical disc 14 are fastened through a plurality of rod-inserting bolts 17, the conical tooth gap between the fixed fluted disc 12 and the movable fluted disc 11 is adjusted through fastening bolts 18, the main shaft 5 and the tail end sawtooth-shaped conical disc 14 are sealed through an inward flow type single-machine seal shaft seal part 19, and a flushing valve 20 for flushing an inner cavity at the shaft seal position is arranged in the suspension inward flow type single-machine seal shaft seal part 19.
The centrifugal stirring wheel 16 is a centrifugal straight blade, an arc blade or a twisted blade, and the number of the blades is 12-24.
A method for designing the efficiency of fluid mixing and fine cutting machine features that the cutting frequency L per unit length of fluid mixing and fine cutting machineCTo indicate that is
(number of fine cuts per unit length/s);
wherein: z is a radical of1 moveIs the number of teeth, z, of the first moving gear ring on the nested conical moving gear disc1 decidesIs the number of teeth, l, of the first fixed gear ring on the sleeved type conical fixed gear disc1Is the length m, alpha of the first movable gear ring or fixed gear ring on the sleeved tapered movable gear disc or fixed gear disc1The included angle between the teeth of the first moving gear ring on the sleeved type conical moving gear disc and the teeth of the first fixed gear ring on the sleeved type conical fixed gear disc is Z2 moveIs the number of teeth, z, of the second movable gear ring on the nested conical movable gear disk2 decideIs the number of teeth, l, of a second fixed gear ring on the sleeved type conical fixed gear disc2The length m, alpha of the second movable gear ring or fixed gear ring on the sleeved tapered movable gear disc or fixed gear disc2The included angle between the teeth of the second movable gear ring on the sleeved conical movable gear disc and the teeth of the second fixed gear ring on the sleeved conical fixed gear disc is degrees. z is a radical ofPowderThe number of teeth on the end sawtooth-shaped conical disk, /)PowderThe length of the cone disc with a sawtooth-shaped tail end is m; and n is the rotation frequency of the sleeved conical movable fluted disc or the tail end sawtooth-shaped conical disc, and r/min.
Claims (7)
1. The utility model provides a fluid thoughtlessly moves carefully machine of cutting off, includes casing (1) and base (2), the upper portion of base (2) be equipped with the fixed suspension part (3) of base (2), the left end of suspension part (3) be equipped with casing (1) fixed mutually with suspension part (3), suspension part (3) in be equipped with main shaft (5) and main shaft (5) that stretch into in casing (1) through being motor (6) and carry out the transmission, motor (6) and main shaft (5) between link through shaft coupling (7), the inner wall of casing (1) be equipped with half embedded regulation seat (8) and the head of adjusting seat (8) be equipped with protecgulum (9), casing (1) in be equipped with export stub pipe flange (10) that are linked together with casing (1), its characterized in that: a plurality of sequentially sleeved fixed superposed movable fluted discs (11) are sleeved at the left end of the main shaft (5), the movable fluted discs (11) rotate along with the rotation of the main shaft (5), the inner wall of the adjusting seat (8) is provided with a plurality of fixed fluted discs (12) which are sequentially sleeved, fixed and overlapped, a tooth high-frequency channel (13) is formed between the movable fluted disc (11) and the fixed fluted disc (12), a tail end sawtooth-shaped conical disc (14) which rotates synchronously with the main shaft (5) is arranged at the bottom of the last movable fluted disc (11), the outlet of the tooth high-frequency channel (13) is communicated with the tail end sawtooth-shaped conical disc (14), the outer wall of the movable fluted disc (11), the inner wall of the fixed fluted disc (12) and the outer wall of the tail end sawtooth-shaped conical disc (14) are respectively provided with a tooth part (15), the tail end sawtooth-shaped conical disc (14) and the outlet short pipe flange (10) are distributed in a matching connection mode, and the head of the main shaft (5) is provided with a centrifugal stirring wheel (16).
2. A fluid mixing and finely-breaking machine as claimed in claim 1, wherein: the number of the movable fluted discs (11) is 3-5, and the number of the movable fluted discs (11) is equal to that of the fixed fluted discs (12); the cross section of the tooth part high-frequency channel (13) is distributed in a cone shape, and the diameters of the tooth part high-frequency channels (13) are sequentially increased from left to right.
3. A fluid mixing and finely-breaking machine as claimed in claim 1 or 2, characterized in that: the tooth parts of the fixed tooth disc (12) and the tail end sawtooth-shaped conical disc (14) are straight teeth or inclined teeth respectively, and each tooth part (15) is in a whole strip shape or sawtooth shape; the number of teeth of each movable fluted disc (11) and each tail end sawtooth-shaped conical disc (14) is 10-90, and the number of teeth of each fixed fluted disc (12) is 30-150; the diameter of the high-frequency channel (13) of the tooth part is 0.08-0.16 mm in clearance.
4. A fluid mixing and finely-breaking machine as claimed in claim 3, wherein: the cone angle in the movable fluted disc (11) is 10-12 degrees, and the cone angle in the tail end sawtooth-shaped conical disc (14) is 42-45 degrees.
5. A fluid mixing and finely-breaking machine as claimed in claim 1 or 2, characterized in that: the movable fluted disc (11) and the tail end sawtooth-shaped conical discs (14) are fastened through a plurality of rod-inserting bolts (17), the conical tooth gaps between the fixed fluted disc (12) and the movable fluted disc (11) are adjusted through fastening bolts (18), the main shaft (5) and the tail end sawtooth-shaped conical discs (14) are sealed through an inner flow type single machine seal shaft seal component (19), and a flushing valve (20) used for flushing an inner cavity at the shaft seal position is arranged in the suspension inner flow type single machine seal shaft seal component (19).
6. A fluid mixing and finely-breaking machine as claimed in claim 1 or 2, characterized in that: the centrifugal stirring wheel (16) is a centrifugal straight blade, an arc blade or a twisted blade, and the number of the blades is 12-24.
7. The method for designing efficiency of a fluid mixing and chopping machine according to claim 1 or 2, wherein:
the cutting or fine-cutting efficiency of the fluid mixing fine-cutting machine can be determined by the number of fine-cutting times L per unit lengthCTo indicate that is
(number of fine cuts per unit length/s);
wherein: z is a radical of1 moveIs the number of teeth, z, of the first moving gear ring on the nested conical moving gear disc1 decidesIs the number of teeth, l, of the first fixed gear ring on the sleeved type conical fixed gear disc1Is the length m, alpha of the first movable gear ring or fixed gear ring on the sleeved tapered movable gear disc or fixed gear disc1The included angle between the teeth of the first moving gear ring on the sleeved type conical moving gear disc and the teeth of the first fixed gear ring on the sleeved type conical fixed gear disc is Z2 moveIs the number of teeth, z, of the second movable gear ring on the nested conical movable gear disk2 decideIs the number of teeth, l, of a second fixed gear ring on the sleeved type conical fixed gear disc2The length m, alpha of the second movable gear ring or fixed gear ring on the sleeved tapered movable gear disc or fixed gear disc2The included angle between the teeth of the second movable gear ring on the sleeved conical movable gear disc and the teeth of the second fixed gear ring on the sleeved conical fixed gear disc is degrees. z is a radical ofPowderThe number of teeth on the end sawtooth-shaped conical disk, /)PowderThe length of the cone disc with a sawtooth-shaped tail end is m; and n is the rotation frequency of the sleeved conical movable fluted disc or the tail end sawtooth-shaped conical disc, and r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111198526.1A CN113981728A (en) | 2021-10-14 | 2021-10-14 | Fluid mixing and fine breaking machine and efficiency design method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111198526.1A CN113981728A (en) | 2021-10-14 | 2021-10-14 | Fluid mixing and fine breaking machine and efficiency design method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113981728A true CN113981728A (en) | 2022-01-28 |
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|---|---|---|---|
| CN202111198526.1A Pending CN113981728A (en) | 2021-10-14 | 2021-10-14 | Fluid mixing and fine breaking machine and efficiency design method thereof |
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| US20190078259A1 (en) * | 2017-09-11 | 2019-03-14 | International Paper Company | Method for processing wood fibers |
| CN210916790U (en) * | 2019-08-06 | 2020-07-03 | 阜新天合纸业有限公司 | Grinding disc of pulp grinder |
| CN212077475U (en) * | 2020-05-07 | 2020-12-04 | 郑州磊展科技造纸机械有限公司 | Novel conical pulping machine |
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2021
- 2021-10-14 CN CN202111198526.1A patent/CN113981728A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2010053912A (en) * | 2008-08-27 | 2010-03-11 | Bando Chem Ind Ltd | Friction transmission belt made of synthetic resin |
| CN102392376A (en) * | 2011-09-30 | 2012-03-28 | 杭州萧山美特轻工机械有限公司 | Gear ring stepped high-frequency fluffer |
| CN204140845U (en) * | 2014-10-08 | 2015-02-04 | 安徽池州家用机床股份有限公司 | A kind of device adjusting bevel gear back lash |
| US20190078259A1 (en) * | 2017-09-11 | 2019-03-14 | International Paper Company | Method for processing wood fibers |
| CN208219277U (en) * | 2018-04-27 | 2018-12-11 | 广东理文卫生用纸有限公司 | A kind of conical refiner mill structure |
| CN210916790U (en) * | 2019-08-06 | 2020-07-03 | 阜新天合纸业有限公司 | Grinding disc of pulp grinder |
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