CN115921065B - Fluff pulp crushing system - Google Patents
Fluff pulp crushing system Download PDFInfo
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- CN115921065B CN115921065B CN202211544061.5A CN202211544061A CN115921065B CN 115921065 B CN115921065 B CN 115921065B CN 202211544061 A CN202211544061 A CN 202211544061A CN 115921065 B CN115921065 B CN 115921065B
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- distribution
- fluff pulp
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- inlet
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- 239000000835 fiber Substances 0.000 claims abstract description 66
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 230000008021 deposition Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 238000010298 pulverizing process Methods 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 241001397809 Hakea leucoptera Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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- Paper (AREA)
Abstract
The embodiment of the invention provides a fluff pulp crushing system, which comprises a crushing device, a first outlet and a second outlet, wherein the crushing device is used for defibrating a fluff pulp board into discrete fibers; the forming device is used for forming the discrete fibers to form an absorption core body and comprises a forming box inlet; the pipeline system is arranged at the downstream of the crushing device and comprises two conveying channels communicated with the first outlet, and at least one conveying channel is provided with a pile deposition device; the distributor comprises a distribution cavity, wherein the distribution cavity comprises two distribution inlets connected with two conveying channels and a distribution outlet communicated with the inlet of the forming box, two distribution channels are formed between the two distribution inlets and the distribution outlet, the distributor further comprises a valve plate, and the valve plate is configured to be selectively communicated with one distribution channel and close the other distribution channel, so that a rolled fluff pulp plate or a sheet fluff pulp plate can be conveniently used, and meanwhile, the continuity of fibers can be met when intermittent feeding is realized.
Description
Technical Field
The invention relates to a fluff pulp crushing system.
Background
Disposable sanitary products, including sanitary napkins, diapers, care pads, and breast pads, generally comprise a core structure formed from fluff pulp fibers formed from fluff pulp boards by a fluff pulp comminution system.
The existing fluff pulp crushing system comprises a crusher and a forming box directly connected with the crusher, wherein a discharge hole of the crusher is directly in butt joint with a feed hole of the forming box, so that the crusher and the forming box are arranged in one-to-one correspondence, in this way, the crusher can only receive rolled fluff pulp feed, but cannot receive sheet fluff pulp feed, because the sheet fluff pulp can only be supplied to the crusher in a piece-to-piece manner, namely, intermittent feed is needed to be considered, particularly in the process of changing materials, and the solution of the fluff pulp crushing system for simultaneously supplying the rolled fluff pulp and the sheet fluff pulp is not better provided at present.
Disclosure of Invention
To this end, the present invention provides a fluff pulp comminution system to solve the above-mentioned technical problems.
A fluff pulp comminution system comprising
A comminution device for defibrating the fluff pulp sheet into discrete fibers, comprising a first outlet;
The forming device is used for forming the discrete fibers to form an absorption core body and comprises a forming box inlet;
The pipeline system is arranged at the downstream of the crushing device and comprises two conveying channels communicated with the first outlet, and at least one conveying channel is provided with a pile deposition device;
The distributor comprises a distribution cavity, wherein the distribution cavity comprises two distribution inlets connected with two conveying channels and a distribution outlet communicated with the inlet of the forming box, two distribution channels are formed between the two distribution inlets and the distribution outlet, and the distributor further comprises a valve plate which is configured to be selectively communicated with one distribution channel and close the other distribution channel.
The conveying channel comprises a first conveying channel and a second conveying channel, wherein the pile device is arranged on the second conveying channel, the distribution inlet comprises a first distribution inlet and a second distribution inlet, the pipeline system further comprises a tee joint, the first conveying channel comprises a pipeline which is directly communicated with the first distribution inlet and the tee joint, and the second conveying channel comprises a fiber storage tank arranged between the tee joint and the pile device.
The down accumulation device comprises an upper inlet, an upper outlet and a lower outlet, wherein the lower outlet is connected with a second distribution inlet pipeline, the upper outlet is connected with the fiber storage tank through a return air pipe, and a part of fibers are returned to the fiber storage tank through the return air pipe.
Wherein, both upstream and downstream of the fiber storage tank are provided with fans.
The valve plate is arranged in the distribution cavity and divides the distribution cavity into a left cavity and a right cavity, wherein the first distribution inlet, the left cavity and the distribution outlet form a first distribution channel, the second distribution inlet, the right cavity and the distribution outlet form a second distribution channel, the valve plate can movably rotate to a first position or can movably rotate rightwards to a second position, when the valve plate rotates to the first position, the left cavity is separated by the valve plate and the second distribution channel is communicated, and when the valve plate rotates to the second position, the right cavity is separated by the valve plate and the first distribution channel is communicated.
The forming device comprises a forming cavity, wherein when the left cavity is closed, the right cavity is enlarged to form a mixing cavity, when the right cavity is closed, the left cavity is enlarged to form a mixing cavity, the volume of the mixing cavity formed by enlarging the right cavity is equal to that of the mixing cavity formed by enlarging the left cavity, and the volume of the mixing cavity is greater than or equal to 1/10 and less than or equal to 1/4 of that of the forming cavity.
The distributing cavity is formed by surrounding a shell, and the valve plate is pivoted on the shell.
Wherein the dispensing outlet is in direct communication with the forming box inlet.
The fluff pulp crushing system comprises a first feeding device and a second feeding device, wherein the first feeding device is used for conveying the coiled fluff pulp board to the crusher, the second feeding device is used for conveying the flaky fluff pulp board to the crusher, when the fluff pulp crushing system uses the first feeding device, the discrete fibers are conveyed through a first conveying channel, and when the fluff pulp crushing system uses the second feeding device, the discrete fibers are conveyed through a second conveying channel.
The distributor is also provided with an actuating device which is connected with the valve plate and used for driving the valve plate to move.
The beneficial effects are that: the embodiment of the invention provides a fluff pulp crushing system, which comprises a crushing device, a first outlet and a second outlet, wherein the crushing device is used for defibrating a fluff pulp board into discrete fibers; the forming device is used for forming the discrete fibers to form an absorption core body and comprises a forming box inlet; the pipeline system is arranged at the downstream of the crushing device and comprises two conveying channels communicated with the first outlet, and at least one conveying channel is provided with a pile deposition device; the distributor comprises a distribution cavity, wherein the distribution cavity comprises two distribution inlets connected with two conveying channels and a distribution outlet communicated with the inlet of the forming box, two distribution channels are formed between the two distribution inlets and the distribution outlet, the distributor further comprises a valve plate, and the valve plate is configured to be selectively communicated with one distribution channel and close the other distribution channel, so that a rolled fluff pulp plate or a sheet fluff pulp plate can be conveniently used, and meanwhile, the continuity of fibers can be met when intermittent feeding is realized.
Drawings
FIG. 1 is a schematic diagram of a fluff pulp comminution system in accordance with an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of the region A of FIG. 1;
fig. 3 is a plan view of a fluff pulp pulverizing system in which two types of feeding devices are simultaneously provided.
Illustration of the elements:
A molding device 10; a forming box inlet 101; a dispenser 20; a dispensing chamber 200; a first distribution inlet 201; a second distribution inlet 202; a dispensing outlet 203; a valve plate 21; a first distribution channel 211; a second distribution channel 212; a pulverizing device 30; an air-sending pipe 301; a first outlet 302; a first feeding device 31; a second feeding device 32; a pile device 40; an upper inlet 41; an upper outlet 42; a lower outlet 43; a fiber storage tank 50; a first fan 61; a second fan 62; a tee 710; a first conduit 711; a second conduit 712; a third pipe 713; a fourth pipe 714; a fifth pipe 715; and return air duct 716.
Detailed Description
Referring to fig. 1-2 in combination, an embodiment of the present application provides a fluff pulp comminution system, and the present application will be further described with reference to these figures.
The fluff pulp comminution system comprises a comminution device 30, a forming device 10, a pipe system and a distributor 20.
The comminution device 30 includes a shredder for defibrating the fluff pulp sheet to form discrete fibers or to form individual fibers, the fibrous material of the fluff pulp sheet is not limited and may be one of needle wood fluff pulp sheet, hardwood fluff pulp sheet, bamboo fluff pulp sheet, or the like, while the shredder may receive a rolled fluff pulp sheet or a sheet fluff pulp sheet which may be fed continuously to the shredder, and a sheet fluff pulp sheet which may be fed discontinuously or intermittently to the shredder.
The pulverizer comprises a first outlet 302 for delivering defibrated fibers in a downstream direction and an air delivery pipe 301 positioned at the upstream of the pulverizer, wherein the front end of the air delivery pipe 301 is connected with an air compressor for providing air flow for air delivery so that the fibers can be delivered in the downstream direction along with the air flow through the first outlet 302.
Referring to fig. 3 together, there is shown in fig. 3a fluff pulp comminution system provided with both a first feeding means 31 for conveying a rolled fluff pulp sheet to a comminution machine and a second feeding means 32 for conveying sheet-like fluff pulp sheets to the comminution machine, the sheet-like fluff pulp sheets being conveyed intermittently, in particular at relatively long time intervals when a stack of sheet-like fluff pulp sheets is being reloaded.
The forming device 10 is used for forming fibers to form a core structure, the forming device 10 comprises a forming box, the forming box comprises a forming cavity, a forming box inlet 101 and a dispersing opening, the forming box inlet 101 is communicated with the forming cavity, the fibers after being defibrated by the pulverizing device 30 are received through the forming box inlet 101, the fibers move in the cavity along with air flow, and are entangled and interweaved to form a porous network structure after being dispersed through the dispersing opening.
The pipe system is arranged downstream of the comminuting device 30 and comprises two conveying channels communicating with the first outlet 302, wherein at least one of the conveying channels is provided with a pile device 40. In this embodiment, a tee 710 is disposed downstream of the first outlet 302, the first outlet 302 is connected to the tee 710 through a pipe, one of the two conveying channels is connected to an outlet of the tee 710, the other conveying channel is connected to the other outlet of the tee 710, for convenience of description, one of the conveying channels is defined as a first conveying channel, the other conveying channel is defined as a second conveying channel, and the pile device 40 is disposed on the second conveying channel.
The pile device 40 includes a receiving space and can be configured to quantitatively convey the fibers downstream, generally, the pile device 40 includes a first conveying belt and a second conveying belt that are disposed opposite to each other, the receiving space is a region between the first conveying belt and the second conveying belt, the first conveying belt is wound on a plurality of supporting rollers, at least a portion of the first conveying belt is substantially vertical, and likewise, at least a portion of the second conveying belt is substantially vertical, the receiving space is sandwiched between the first conveying belt and the second conveying belt that are vertical, when the first conveying belt and the second conveying belt move in opposite directions, the fibers in the receiving space are conveyed along with the movement in a downstream direction, a lower conveying roller is disposed below the receiving space to convey the fibers in the receiving space downstream, the pile device 40 further includes a lower outlet 43, and the fibers after being defibrated by the pulverizer are conveyed to the forming device 10 through the lower outlet 43.
It will be appreciated that the pile device 40 further comprises an upper inlet 41, and the second conveying passage comprises a fourth pipe 714 connected to the upper inlet 41 and a fifth pipe 715 connected to the lower outlet 43, wherein the fourth pipe 714 is used for conveying the fibers to the pile device 40, and the fifth pipe 715 is used for conveying the fibers in the pile device 40 to the downstream, and it will be appreciated that the upstream of the fourth pipe 714 is communicated to one outlet of the tee 710.
It will be appreciated that the pile device 40 has a space for storing temporary fibers, and when a sheet-like fluff pulp board is used for feeding, a buffering effect is formed by the space, so as to avoid a material breakage.
Further, a fiber storage tank 50 is further provided on the second conveying path, the fiber storage tank 50 has a larger fiber storage space for temporarily or long-term storing a larger amount of fibers which are defibrated and blown by the pulverizer, and preferably, the fiber storage tank 50 is provided between the tee 710 and the pile device 40.
Further, the first fan 61 and the second fan 62 are provided upstream and downstream of the fiber storage tank 50 so that the second conveyance path can have sufficient wind blowing amount and wind pressure, and at the same time, a second pipe 712 is provided between the tee 710 and the first fan 61, and a third pipe 713 is provided between the first fan 61 and the fiber storage tank 50.
Further, the pile device 40 is further provided with an upper outlet 42, and a return air duct 716 is disposed between the upper outlet 42 and the fiber storage tank 50 to return the fibers which cannot be processed by the pile device 40 or cannot enter the pile device 40 under the action of air flow to the fiber storage tank 50, in this case, the fiber storage tank 50 forms primary fiber storage and buffering, the accommodating space of the pile device 40 forms secondary fiber storage and buffering, and continuous quantitative conveying can be performed by the pile device 40, that is, continuous downstream conveying of the fibers can be realized even if the fibers are fed at intervals for a relatively long time, and meanwhile, the fibers can be fully utilized due to the return air duct 716.
It will be appreciated that the fibres are sent directly downstream through the first conveying channel.
In addition, the fiber storage tank 50 can also realize that different fibers are mixed in the fiber storage tank 50, thereby realizing that different fibers are present in the core.
The dispenser 20 includes a dispensing chamber 200, the dispensing chamber 200 includes two dispensing inlets correspondingly connected to two delivery channels and a dispensing outlet 203 in communication with the forming box inlet 101, two dispensing channels are formed between the two dispensing inlets and the dispensing outlet 203, the dispenser 20 further includes a valve plate 21, and the valve plate 21 is configured to selectively communicate with one of the dispensing channels and close the other dispensing channel.
Specifically, the dispensing outlet 203 includes a first dispensing inlet 201 and a second dispensing inlet 202, where the first dispensing inlet 201 is connected to the tee 710 through a first pipe 711, the second dispensing inlet 202 is connected to the lower outlet 43 of the pile device 40 through a fifth pipe 715, a first dispensing channel 211 is formed between the first dispensing inlet 201 and the dispensing outlet 203, a second dispensing channel 212 is formed between the second dispensing inlet 202 and the dispensing outlet 203, and when the valve plate 21 is movably connected to the first dispensing channel 211, the second dispensing channel 212 is closed, and when the second dispensing channel 212 is connected, the first dispensing channel 211 is closed, so that fibers can only be conveyed from one of the conveying channels to the forming cavity.
In this embodiment, the dispenser 20 includes a dispensing chamber 200, the valve plate 21 is disposed in the dispensing chamber 200, and meanwhile, the valve plate 21 is configured to move between a first position and a second position, the dispensing chamber 200 is surrounded by a housing, the upper end of the valve plate 21 is pivoted on the housing, the first dispensing inlet 201 and the second dispensing inlet 202 are disposed on the left and right sides of the housing, the dispensing outlet 203 is disposed on the lower end of the housing, the valve plate 21 divides the dispensing chamber 200 into a left side chamber and a right side chamber, wherein the first dispensing inlet 201, the left side chamber and the dispensing outlet 203 form a first dispensing channel 211, the second dispensing inlet 202, the right side chamber and the dispensing outlet 203 form a second dispensing channel 212, the valve plate 21 is movable to the left to the first position or the movable to the right to the second position, when the valve plate 21 is rotated to the first position, the left side chamber is blocked by the valve plate 21, i.e. the first distribution channel 211 is closed and the second distribution channel 212 is made to communicate, and likewise, when the valve plate 21 is rotated to the second position, the right side chamber is blocked by the valve plate 21, i.e. the second distribution channel 212 is closed and the first distribution channel 211 is made to communicate, while it can be seen that in this arrangement, when the left side chamber is closed, the right side chamber is enlarged to form a mixing chamber, and likewise, when the right side chamber is closed, the left side chamber is enlarged to form a mixing chamber, when the fibers move along with the air flow to the mixing chamber, a premixing effect is achieved, when entering into a forming chamber having a larger space, a better mixing effect is formed, particularly when SAP is mixed in the fibers, by the enlarged right side chamber is premixed, and when forming mixing is performed in the forming chamber, the SAP can have better mixing effect and reduce the loss of the SAP, and further researches show that when the volume of the mixing cavity formed by expanding the right cavity or the left cavity is more than or equal to 1/10 and less than or equal to 1/4 of the volume of the forming cavity, the loss of the SAP can be reduced by about 3% -6%.
Further, the distribution outlet 203 is in direct communication with the forming box inlet 101, wherein the direct communication means that the distribution outlet 203 is in contact with the forming box inlet 101, and no constricted pipe is provided between the distribution outlet 203 and the forming box inlet 101.
It will be appreciated that when the valve plate 21 communicates with the first distribution channel 211 and closes the second distribution channel 212, fibers enter through the first transfer channel and the first distribution inlet 201, in which case a continuous feed of fluff pulp sheet in roll form is possible, while when the valve plate 21 communicates with the second distribution channel 212 and closes the first distribution channel 211, fibers enter through the second transfer channel and the second distribution inlet 202, in which case a continuous feed of fluff pulp sheet in roll form is possible, in which case a continuous feed of fluff pulp sheet in roll form is also possible, in which case a continuous feed of fluff pulp sheet in roll form is possible, and in which case a continuous feed of fluff pulp sheet in roll form is possible to feed the distributor 20 by the fluff accumulating device 40 after being pre-stored in the fiber storage tank 50.
It will be appreciated that the dispenser 20 is also provided with actuating means connected to the valve plate 21 for driving the valve plate 21 in motion, in which case the position of the valve plate 21 can be actively controlled by the actuating means to control the opening and closing of the first or second dispensing passage 211, 212.
The foregoing description is only of embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (6)
1. A fluff pulp comminution system comprising
A comminution device for defibrating the fluff pulp sheet into discrete fibers, comprising a first outlet;
The forming device is used for forming the discrete fibers to form an absorption core body and comprises a forming box inlet;
The pipeline system is arranged at the downstream of the crushing device and comprises two conveying channels communicated with the first outlet, and at least one conveying channel is provided with a pile deposition device;
The distributor comprises a distribution cavity, wherein the distribution cavity comprises two distribution inlets connected with two conveying channels and a distribution outlet communicated with the inlet of the forming box, two distribution channels are formed between the two distribution inlets and the distribution outlet, and the distributor also comprises a valve plate which is configured to be selectively communicated with one distribution channel and close the other distribution channel;
The conveying channel comprises a first conveying channel and a second conveying channel, wherein the pile accumulating device is arranged on the second conveying channel, the distribution inlet comprises a first distribution inlet and a second distribution inlet, the pipeline system further comprises a tee joint, the first conveying channel comprises a pipeline which is directly communicated with the first distribution inlet and the tee joint, and the second conveying channel comprises a fiber storage tank arranged between the tee joint and the pile accumulating device;
The pile accumulating device comprises an upper inlet, an upper outlet and a lower outlet, wherein the lower outlet is connected with a second distribution inlet pipeline, the upper outlet is connected with the fiber storage tank through a return air pipe, and a part of fibers are returned to the fiber storage tank through the return air pipe;
a fan is arranged at the upstream and downstream of the fiber storage tank;
The valve plate is arranged in the distribution cavity and divides the distribution cavity into a left cavity and a right cavity, wherein the first distribution inlet, the left cavity and the distribution outlet form a first distribution channel, the second distribution inlet, the right cavity and the distribution outlet form a second distribution channel, the valve plate can movably rotate to a first position or can movably rotate rightwards to a second position, when the valve plate rotates to the first position, the left cavity is separated by the valve plate and the second distribution channel is communicated, and when the valve plate rotates to the second position, the right cavity is separated by the valve plate and the first distribution channel is communicated.
2. The fluff pulp pulverizing system of claim 1, wherein the forming means comprises a forming chamber, the right side chamber expands to form a mixing chamber when the left side chamber is closed, the left side chamber expands to form a mixing chamber when the right side chamber is closed, the mixing chamber formed by the expansion of the right side chamber is equal to the mixing chamber formed by the expansion of the left side chamber in volume, and the volume of the mixing chamber is 1/10 or more and 1/4 or less of the volume of the forming chamber.
3. The fluff pulp comminution system of claim 2, wherein said distribution chamber is defined by a housing, and said valve plate is pivotally connected to the housing.
4. The fluff pulp comminution system of claim 1, wherein said distribution outlet is in direct communication with a forming box inlet.
5. The fluff pulp comminution system of claim 4, including a first feed device for delivering a rolled fluff pulp sheet to the mill and a second feed device for delivering a sheet-like fluff pulp sheet to the mill, wherein the discrete fibers are delivered through the first delivery channel when the fluff pulp comminution system is in use with the first feed device and the discrete fibers are delivered through the second delivery channel when the fluff pulp comminution system is in use with the second feed device.
6. The fluff pulp comminution system of claim 4, wherein said distributor is further provided with an actuator, said actuator being coupled to the valve plate for actuating movement of said valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211544061.5A CN115921065B (en) | 2022-12-04 | 2022-12-04 | Fluff pulp crushing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211544061.5A CN115921065B (en) | 2022-12-04 | 2022-12-04 | Fluff pulp crushing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115921065A CN115921065A (en) | 2023-04-07 |
| CN115921065B true CN115921065B (en) | 2024-06-18 |
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ID=86697388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211544061.5A Active CN115921065B (en) | 2022-12-04 | 2022-12-04 | Fluff pulp crushing system |
Country Status (1)
| Country | Link |
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| CN (1) | CN115921065B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0301804A2 (en) * | 1987-07-29 | 1989-02-01 | Arco Chemical Technology, Inc. | Method and apparatus for production of nonwoven fibrous articles |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558713A (en) * | 1994-10-31 | 1996-09-24 | The Procter & Gamble Company | Method and apparatus for forming a pulsed stream of particles for application to a fibrous web |
| CN213941170U (en) * | 2020-12-01 | 2021-08-13 | 上海智联精工机械有限公司 | Core forming device with composite construction |
| CN113425505B (en) * | 2021-07-02 | 2022-07-29 | 上海智联精工机械有限公司 | Core forming system |
| CN216172925U (en) * | 2021-07-20 | 2022-04-05 | 杭州中艺生态环境工程有限公司 | Fertile device of biological system of breed discarded object environmental protection |
-
2022
- 2022-12-04 CN CN202211544061.5A patent/CN115921065B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0301804A2 (en) * | 1987-07-29 | 1989-02-01 | Arco Chemical Technology, Inc. | Method and apparatus for production of nonwoven fibrous articles |
Non-Patent Citations (1)
| Title |
|---|
| 近期造纸装备、材料项目完整简讯;造纸装备及材料;20160915(03);第40-48页 * |
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| CN115921065A (en) | 2023-04-07 |
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