CN113529466A - Take high frequency of preprocessing function to fluffer - Google Patents
Take high frequency of preprocessing function to fluffer Download PDFInfo
- Publication number
- CN113529466A CN113529466A CN202010290603.5A CN202010290603A CN113529466A CN 113529466 A CN113529466 A CN 113529466A CN 202010290603 A CN202010290603 A CN 202010290603A CN 113529466 A CN113529466 A CN 113529466A
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- Prior art keywords
- stator
- hub
- grinding disc
- pipe
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000007781 pre-processing Methods 0.000 title claims description 5
- 239000002002 slurry Substances 0.000 claims abstract description 49
- 239000002893 slag Substances 0.000 claims abstract description 40
- 210000004907 gland Anatomy 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 230000005012 migration Effects 0.000 claims 2
- 238000013508 migration Methods 0.000 claims 2
- 239000000835 fiber Substances 0.000 abstract description 11
- 239000012535 impurity Substances 0.000 abstract description 11
- 238000012216 screening Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000013049 sediment Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
-
- 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
- D21D1/30—Disc mills
- D21D1/303—Double disc mills
-
- 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
- D21D1/30—Disc mills
- D21D1/306—Discs
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The invention relates to a high-frequency defiberizer with a pretreatment function, which comprises a machine body, a fixed grinding disc, a rotary grinding disc, a pulp inlet pipe and a pulp outlet pipe, wherein the fixed grinding disc and the rotary grinding disc are arranged in the machine body; the slurry inlet inverted taper pipe small opening faces the side of the rotary grinding disc, the slurry inlet pipe is communicated with the upper portion of the slurry inlet pipe, the lower portion of the slurry inlet pipe is communicated with the funnel-shaped heavy slag collecting tank, the lower portion of the funnel of the heavy slag collecting tank is connected with a slag discharge valve, heavy slag is separated in advance through the heavy slag collecting tank, primary fluffing is completed, impurities in a fiber bundle (fiber bundle) are separated in advance and collected, the heavy slag is removed in time, and the screening requirement of subsequent equipment is relieved.
Description
Technical Field
The invention relates to the field of high-frequency fluffer equipment, in particular to a high-frequency fluffer with a preprocessing function.
Background
The deflaker is a device for disintegrating a fiber mass into individual fibers and a wet fiber mass, and as shown in fig. 1, a conventional deflaker process is as follows: the slurry flow enters the machine body from the slurry inlet, is subjected to defibering treatment through a defibering area between the stator and the rotor, and enters the next equipment in the system from the slurry outlet; the slurry enters from the stator side, and flows only on the inner surface of the stator and the outer surface of the rotor, so that fiber bundles (clusters) in the slurry cannot be sufficiently defibered, and heavy slag in the slurry and impurities in the fiber clusters cannot be separated and removed; the analysis reason is that slurry enters from the stator side, and only the inner teeth of the stator and the outer teeth of the rotor act, so that the fluffing time is short. Simultaneously the gap undersize between stator and the rotor does not possess the function of preliminary mediation fibre group and tow, leads to heavy sediment and thick tow to stop inside equipment, again because advance the thick liquid in-process and do not have heavy sediment separating mechanism, can't carry out effective separation to the heavy sediment of thoughtlessly advancing in the thick liquids, easily causes equipment to block.
The conventional high-frequency fluffer has another problem that the abrasion loss of a stator and a rotor is compensated by driving the rotor to move through the reciprocating movement of the main shaft, the main shaft and the bearing chamber integrally slide back and forth in the bearing hole of the transmission bracket during the feeding and retracting of the cutter, and since the main shaft and the bearing chamber can slide, a gap is inevitable and can cause the vibration of the rotor during the working, and the vibration can cause the fluctuation of a pulping gap and directly influence the pulping quality. Meanwhile, the vibration of the rotor causes the rotary seal to be damaged, so that slurry leakage is caused, the rotary seal is sealed by adopting a filler, the filler is required to be adjusted frequently and the amount of cooling water is required to be adjusted frequently, the seal is easy to leak, so that the maintenance is frequent, and the manpower is wasted.
Disclosure of Invention
The invention aims to provide a high-frequency fluffer with a pretreatment function, which can prolong the fluffing path and time of pulp by changing the position of a pulp inlet pipe, so that the pulp can be fluffed sufficiently, and the screening requirement of subsequent equipment is relieved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-frequency defiberizing machine with a pretreatment function comprises a machine body, a fixed grinding disc, a rotary grinding disc, a pulp inlet pipe and a pulp outlet pipe, wherein the fixed grinding disc and the rotary grinding disc are arranged in the machine body; the small opening of the slurry inlet inverted cone pipe faces the side of the rotary grinding disc, the slurry inlet pipe is communicated with the upper part of the slurry inlet inverted cone pipe, the lower part of the slurry inlet inverted cone pipe is communicated with the funnel-shaped heavy slag collecting tank, and the lower part of the funnel of the heavy slag collecting tank is connected with a slag discharge valve.
Preferably, the rotation mill includes wheel hub, rotor and main shaft, and wheel hub passes through the main shaft and is connected with slewing mechanism, wheel hub includes spoke board, sleeve pipe and outer lane, the spoke board is scattering form spoke structure, and for the passageway that runs through between adjacent spoke, through gusset fixed connection between sleeve pipe and the spoke board, the outer lane forms little clearance fit's dynamic seal structure with the osculum department of advancing thick liquid inverted cone pipe, be equipped with plum blossom form through-hole in the middle of the rotor, the rotor passes through the fastener and is connected with wheel hub, is in after rotor and the wheel hub assembly passageway department forms the discharge orifice.
Preferably, the sleeve of the hub is connected with the main shaft through a key, the end part of the hub is provided with a shaft end gland, and the shaft end gland is abutted against the sleeve of the hub and is connected with the main shaft through a fastener; the wheel spoke plate center department of wheel hub is equipped with the gland, the gland passes through the fastener with the wheel spoke plate of wheel hub and is connected, and the junction is equipped with the sealing member.
Preferably, a flushing water pipe is arranged in the horizontal direction of the heavy slag collecting tank.
Preferably, the fixed grinding disc comprises a stator, a stator seat connected with the stator through a fastener, and a stator seat fixing plate connected with the stator seat through the fastener, wherein a plurality of stator seat baffles are arranged on the stator seat at intervals in the circumferential direction, and the stator seat baffles are connected with the stator seat through the fastener.
Preferably, the fixed grinding disc further comprises an adjusting device for adjusting the horizontal movement of the stator base, and the adjusting device is arranged on the rear side of a machine cover movably sleeved on the stator base fixing plate and is fixedly connected with the stator base fixing plate through a long screw.
Preferably, a guide rubber and a combined sealing element are arranged at the joint of the stator base fixing plate and the machine cover.
The invention has the technical effects that the pulp is fed from the pulp inlet pipe at the rear side of the rotary grinding disc, the heavy slag is separated in advance through the heavy slag collecting tank to complete primary defibering, so that impurities with fiber bundle (mass) force are separated and collected in advance, the heavy slag is discharged in time, the screened pulp enters a defibering area between the fixed grinding disc and the rotary grinding disc to be defibered again, grading defibering is realized, impurities are collected in grades, the pulp is fully defibered, and the screening requirement of subsequent equipment is relieved through grading and collecting the impurities; meanwhile, the compensation of the abrasion loss of the rotor and the stator is realized by moving the stator, the main shaft rotating at high speed does not move axially, and the radial clearance in sliding fit is avoided, so that the reliability of rotary seal is ensured, the rotating precision of the rotor and the stable clearance of the movable gear ring and the fixed gear ring are ensured, the pulp grinding quality is stable, the mechanical seal and the sealing water flowmeter are adopted, the automation control is realized, and the labor is saved while the high-efficiency operation of the equipment is ensured.
Drawings
FIG. 1 is a schematic diagram of a high frequency fluffer of the prior art and the flow direction of a working slurry;
FIG. 2 is a schematic view of the structure and the working slurry flow direction of the present invention;
FIG. 3 is a partial sectional view taken along line A of FIG. 2;
FIG. 4 is a schematic view of the hub structure and a sectional view taken along the direction A;
FIG. 5 is a schematic view of a rotor structure according to the present invention;
FIG. 6 is a schematic view of the assembled hub and rotor of the present invention;
fig. 7 is a schematic structural view and a sectional view in the direction a of a stator seat and a stator seat baffle of the present invention.
In the drawings: the device comprises a slurry inlet pipe 1, a slurry inlet inverted cone pipe 2, a heavy slag collecting tank 3, a slag discharging valve 4, an opening 5, a main shaft 6, a container type mechanical seal 7, a hub 8, a rotor 9, a stator 10, a stator seat 11, a stator seat baffle 12, a stator seat fixing plate 13, a machine cover 14, an adjusting device 15, a frame 16, a bottom plate 17, a flushing water pipe 18, a slurry outlet pipe 19, a key 20, a shaft end gland 21, a gland 22, a long screw 23, a guide ring 24, a combined sealing piece 25, a frame side plate 26, a machine body 27, a plum blossom-shaped through hole 29, an overflowing hole 30, a rib plate 31, a wheel web plate 32, a sleeve 33, a channel 34 and an outer ring 35.
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.
As shown in fig. 2, a high-frequency defiberizer with pretreatment function comprises a machine body 27, a fixed grinding disc and a rotary grinding disc which are arranged in the machine body 27, a pulp inlet pipe 1 and a pulp outlet pipe 19, wherein the fixed grinding disc is connected to the end part of the machine body 27, the rotary grinding disc and the fixed grinding disc are coaxially arranged in the machine body 27, the center of the rotary grinding disc is fixedly connected with a rotating mechanism, the rear side of the rotary grinding disc is connected with a pulp inlet inverted cone pipe 2, and the pulp inlet pipe 1 is arranged above the rear side of the rotary grinding disc; a small opening of the slurry inlet inverted cone pipe 2 faces the side of the rotary grinding disc, the upper part of the slurry inlet inverted cone pipe is communicated with the slurry inlet pipe 1, the lower part of the slurry inlet inverted cone pipe is communicated with a funnel-shaped heavy slag collecting tank 3, and the lower part of a funnel of the heavy slag collecting tank 3 is connected with a slag discharging valve 4; the slurry enters the slurry inlet inverted cone pipe 2 from the rear side of the rotary grinding disc, and due to the inverted cone structure of the slurry inlet inverted cone pipe 2, and the impurities and the slurry have different specific gravities, heavy slag falls into a funnel-shaped heavy slag collecting tank 3 (with a large upper opening and a small lower opening) along the inner wall of a slurry inlet inverted cone pipe 2, the lower part of a funnel of the heavy slag collecting tank 3 is connected with a slag discharging valve 4, the slag discharging valve 4 is used for controlling the discharge of the heavy slag, a pipeline at the lower end of the slag discharging valve 4 extends out from an opening 5 at a bottom plate 17 of a frame 16, the slurry carried during the discharge of the heavy slag is discharged through a pipeline at the lower end of the slag discharging valve 4, thereby separating the heavy slag mixed in the slurry, completing the primary separation of the heavy slag, fully stripping the heavy slag in the slurry, realizing the collection of the heavy slag, slowing down the screening requirement of subsequent equipment, reducing the abrasion between the rotor 9 and the stator 10, ensuring the safe operation of the equipment and simultaneously ensuring the operation environment of the equipment.
As shown in fig. 4, 5, and 6, the rotating grinding disc includes a hub 8, a rotor 9, and a spindle 6, the hub 8 is connected with a rotating mechanism through the spindle 6, the hub 8 includes a spoke plate 32 with a scattering-shaped spoke structure, a sleeve 33 of an inner ring, and an outer ring 35 of a dynamic sealing structure that forms a small clearance fit with a small opening of the slurry inlet inverted cone pipe (2), a through channel 34 is formed between adjacent spokes of the spoke plate 32, the sleeve 33 is fixedly connected with the spoke plate 32 through a reinforcing rib plate 31, the sleeve 33, the spoke plate 32, and the reinforcing rib plate 31 can also be integrally cast, a quincunx-shaped through hole 29 is formed in the middle of the rotor 9, the rotor 9 is connected with the hub 8 through a bolt, and an overflowing hole 30 is formed in the channel after the rotor 9 is assembled with the hub 8. Outer lane 35 forms little clearance fit's dynamic seal structure with the osculum department of advancing thick liquid inverted cone pipe (2), it flows in inclosed cavity to make thick liquid flow, because there is narrow and small clearance between rotor 9 and the frame curb plate 26, and rotor 9's high-speed rotation, thick liquids form liquid water film between rotor 9 and frame curb plate 26 and seal, thereby guarantee that thick liquids pass through in the discharge orifice 30 that forms after wheel hub 8 and the assembly of rotor 9, when thick liquids pass through discharge orifice 30, rotatory scattering form spoke is dredged fibre bundle (group), peel off the impurity that is mingled with in the fibre bundle (group), thereby accomplish preliminary untwining process.
As shown in fig. 2, the inner ring of the hub 8 is connected with the main shaft 6 through a key 20, one end of the hub is provided with a shaft end gland 21, the shaft end gland 21 abuts against the inner ring of the hub 8 and is connected with the main shaft 6 through a fastener, so that the main shaft 6 is ensured not to axially move when driving the hub 8 and the rotor 9 to rotate; the center of the outer ring of the hub 8 is provided with a gland 22, the gland 22 is connected with the outer ring of the hub 8 through a fastener, and a sealing element is arranged at the joint, so that the sealing protection of the shaft 6 is realized, and the corrosion prevention of slurry to the shaft 6 is prevented.
As shown in fig. 2 and 3, a washing water pipe 18 is arranged in the horizontal direction of the funnel part of the heavy slag collecting tank 3, and the heavy slag is impacted into the funnel of the heavy slag collecting region through the washing water pipe 18, so that the slurry is prevented from being deposited in the heavy slag collecting tank 3.
As shown in fig. 2 and 7, the fixed grinding disc includes a stator 10, a stator seat 11 connected to the stator 10 by a fastener, and a stator seat fixing plate 13 connected to the stator seat 11 by a fastener; the slurry after primary defibering is bundled (agglomerated) and the impurities stripped out flow to a stator seat 11 and a stator seat fixing plate 13 of a defibering area and enter the defibering area between the stator 10 and the rotor 9, and after the slurry flows out from an overflowing hole, the slurry flow is blocked by the stator seat fixing plate 13 and then changes in the direction of the slurry flow, the slurry and the impurities are separated at the position, and the space formed among the stator 10, the stator seat 11 and the stator seat fixing plate 13 collects the impurities again and needs to clean the collected impurities in the area at regular time; the stator seat 11 is provided with a plurality of stator seat baffles 12 at intervals in the circumferential direction, the stator seat baffles 12 are connected with the stator seat 11 through fasteners, the stator seat baffles are used for reducing cavitation damage to a stator seat fixing plate 13 caused by the increase of flow velocity and pressure when the direction of the slurry is changed, and the slurry flows out of a slurry outlet pipe 19 to enter subsequent equipment after being defibered through a gap between the inner surface of the stator 10 and the outer surface of the rotor 9.
As shown in fig. 2, a cover is movably sleeved on an outer ring of a stator base fixing plate, a movable connection is sleeved on an outer wall of an inner cylinder and a central hole of the cover, the cover is fixedly connected with a machine body 27, a rear side of the cover is fixedly connected with an adjusting device for adjusting the fixed grinding disc to horizontally move, a moving part of the adjusting device is fixedly connected with a stator base fixing plate 13 through a long screw, a power mechanism is arranged on the adjusting device, the power mechanism drives the moving part to drive the fixed grinding disc to horizontally move, when a rotor 9 and a stator 10 are abraded, the fixed grinding disc can be moved through the adjusting device 15, so that a fluted disc gap between the rotor 9 and the stator 10 is adjusted, and the fluted disc gap is used for compensating the abrasion loss between the rotor 9 and the stator 10; because the thick liquid pipe 1 is between collection dress formula mechanical seal 7 and rotor 9, if adopt 6 axial displacement of main shaft to drive rotor 9 and adjust the fluted disc clearance, because of the existence in clearance makes 6 rotatory operations of main shaft unstable, and leak thick liquid easily, main shaft 6 does not carry out axial displacement, adopt stator 10 department to remove, guaranteed the rotational accuracy, and do not produce the vibration, can use collection dress formula mechanical seal 7 and sealing water flowmeter to realize automated control, also can use manpower sparingly when guaranteeing the high-efficient operation of equipment.
The stator seat fixing plate 13 is equipped with the guide ring 24 with cover 14 movable sleeve and establishes the junction, and the material of guide ring 24 is rubber, and outside ring is equipped with combined seal 25 with cover 14 movable sleeve department of establishing, and guide ring 24 ensures that stator seat 11 removes steadily and guarantees the geometric accuracy that stator 10 removed, and combined seal 25 ensures not outer the leaking at removal in-process thick liquids.
Claims (7)
1. The utility model provides a take pretreatment function's high frequency fluffer, includes the organism, locate deciding mill and rotating the mill in the organism, advance thick liquid pipe, play thick liquid pipe, decide the mill and connect the tip at the organism, rotate the mill and decide the coaxial setting of mill, rotate the central fixedly connected with slewing mechanism of mill, its characterized in that: the rear side of the rotary grinding disc is connected with a pulp inlet inverted taper pipe, and the pulp inlet pipe is arranged above the rear side of the rotary grinding disc; the small opening of the slurry inlet inverted cone pipe faces the side of the rotary grinding disc, the slurry inlet pipe is communicated with the upper part of the slurry inlet inverted cone pipe, the lower part of the slurry inlet inverted cone pipe is communicated with the funnel-shaped heavy slag collecting tank, and the lower part of the funnel of the heavy slag collecting tank is connected with a slag discharge valve.
2. A deflaker with preprocessing function as claimed in claim 1, wherein: the rotary grinding disc comprises a hub, a rotor and a spindle, wherein the hub is connected with a rotating mechanism through the spindle, the hub comprises a spoke plate, a sleeve and an outer ring, the spoke plate is a scattering-shaped spoke structure, a through passage is formed between adjacent spokes, rib plate fixed connection is formed between the sleeve and the spoke plate, the outer ring forms a small clearance fit dynamic seal structure with a small opening of a slurry inlet inverted cone pipe, a plum blossom-shaped through hole is formed in the middle of the rotor, the rotor is connected with the hub through a fastener, and the rotor is assembled with the hub and then forms a flow passing hole.
3. A deflaker with preprocessing function as claimed in claim 2, wherein: the sleeve of the hub is connected with the main shaft through a key, the end part of the hub is provided with a shaft end gland, and the shaft end gland is abutted against the sleeve of the hub and is connected with the main shaft through a fastener; the wheel spoke plate center department of wheel hub is equipped with the gland, the gland passes through the fastener with the wheel spoke plate of wheel hub and is connected, and the junction is equipped with the sealing member.
4. A deflaker with pretreatment function according to any one of claims 1 to 3, wherein: and a flushing water pipe is arranged in the horizontal direction of the heavy slag collecting tank.
5. A deflaker with pretreatment function according to any one of claims 1 to 3, wherein: the fixed grinding disc comprises a stator, a stator seat connected with the stator through a fastener, and a stator seat fixing plate connected with the stator seat through the fastener, wherein a plurality of stator seat baffles are arranged on the stator seat at intervals in the circumferential direction and connected with the stator seat through the fastener.
6. A deflaker with pretreatment function according to claim 5, wherein: the cover is established to stator base fixed plate outside ring movable sleeve, and swing joint is established with the centre bore cover of cover to inboard cylinder outer wall, cover and organism fixed connection, cover rear side fixed connection are used for adjusting stator base fixed plate horizontal migration's adjusting device, adjusting device's removal part passes through long screw and stator base fixed plate fixed connection, and its removal part of adjusting device control makes the stator base fixed plate establish junction horizontal migration along the movable sleeve of stator base fixed plate and cover.
7. A deflaker with pretreatment function according to claim 6, wherein: the stator seat fixing plate and the cover movable sleeve are connected through a guide ring, and a combined sealing element is arranged at the outer side circular ring and the cover movable sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010290603.5A CN113529466A (en) | 2020-04-14 | 2020-04-14 | Take high frequency of preprocessing function to fluffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010290603.5A CN113529466A (en) | 2020-04-14 | 2020-04-14 | Take high frequency of preprocessing function to fluffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113529466A true CN113529466A (en) | 2021-10-22 |
Family
ID=78088020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010290603.5A Pending CN113529466A (en) | 2020-04-14 | 2020-04-14 | Take high frequency of preprocessing function to fluffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113529466A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010020660A1 (en) * | 2000-02-03 | 2001-09-13 | Peter Antensteiner | Refiner |
| US20040144875A1 (en) * | 2001-01-08 | 2004-07-29 | J & L Fiber Services, Inc. | Deflection compensating refiner plate segment and method |
| US20040182959A1 (en) * | 2003-03-18 | 2004-09-23 | Gl&V Management Hungary Kft | Refiner rotor assembly with a hub having flow-through ports |
| US20120104132A1 (en) * | 2009-07-03 | 2012-05-03 | Metso Paper, Inc. | Refiner |
| CN103074798A (en) * | 2012-12-19 | 2013-05-01 | 华南理工大学 | Disc grinding machine with constant pulping strength and pulping method thereof |
| CN212452073U (en) * | 2020-04-14 | 2021-02-02 | 郑州运达造纸设备有限公司 | Take high frequency of preprocessing function to fluffer |
-
2020
- 2020-04-14 CN CN202010290603.5A patent/CN113529466A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010020660A1 (en) * | 2000-02-03 | 2001-09-13 | Peter Antensteiner | Refiner |
| US20040144875A1 (en) * | 2001-01-08 | 2004-07-29 | J & L Fiber Services, Inc. | Deflection compensating refiner plate segment and method |
| US20040182959A1 (en) * | 2003-03-18 | 2004-09-23 | Gl&V Management Hungary Kft | Refiner rotor assembly with a hub having flow-through ports |
| US20120104132A1 (en) * | 2009-07-03 | 2012-05-03 | Metso Paper, Inc. | Refiner |
| CN103074798A (en) * | 2012-12-19 | 2013-05-01 | 华南理工大学 | Disc grinding machine with constant pulping strength and pulping method thereof |
| CN212452073U (en) * | 2020-04-14 | 2021-02-02 | 郑州运达造纸设备有限公司 | Take high frequency of preprocessing function to fluffer |
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