CN214437645U - Papermaking raw materials is dust collector for breakage - Google Patents
Papermaking raw materials is dust collector for breakage Download PDFInfo
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- CN214437645U CN214437645U CN202023277225.1U CN202023277225U CN214437645U CN 214437645 U CN214437645 U CN 214437645U CN 202023277225 U CN202023277225 U CN 202023277225U CN 214437645 U CN214437645 U CN 214437645U
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- 239000000428 dust Substances 0.000 title claims abstract description 149
- 239000002994 raw material Substances 0.000 title claims abstract description 49
- 238000007906 compression Methods 0.000 claims abstract description 31
- 238000010008 shearing Methods 0.000 claims abstract description 26
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 32
- 239000004459 forage Substances 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 230000000875 corresponding Effects 0.000 claims description 10
- 238000003860 storage Methods 0.000 claims description 7
- 238000010410 dusting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 17
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000003379 elimination reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 7
- 239000010902 straw Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 4
- 206010024796 Logorrhoea Diseases 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 210000003165 Abomasum Anatomy 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 240000003917 Bambusa tulda Species 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 241001438449 Silo Species 0.000 description 1
- 240000008529 Triticum aestivum Species 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 235000021307 wheat Nutrition 0.000 description 1
Abstract
The utility model relates to a papermaking raw materials is dust collector for breakage. The dust removal device for crushing the papermaking raw materials comprises a lifting mechanism; the side wall of the compression roller primary crushing mechanism is connected with a first dust removal mechanism through a first dust absorption pipeline; the blanking device is internally provided with an inclined screen, and the space of the blanking device below the inclined screen is communicated with the first dust removal mechanism; the side wall of the crushing shearing machine is connected with a second dust removal mechanism through a second dust absorption pipeline; the screening box is provided with a vibrating motor on the side wall, and a cambered surface screen is arranged in the screening box; the inside of the screening box is communicated with the second dust removal mechanism. This dust collector for papermaking raw materials is broken has carried out getting rid of and smashing the elimination of the dust pollution of in-process of dust in the raw materials in the whole broken handle process of papermaking raw materials, has guaranteed papermaking raw materials's clean health, avoids follow-up increase dust removal facility separately or clear up clear trouble to the raw materials, has reduced manufacturing cost, has promoted papermaking raw materials treatment effeciency.
Description
Technical Field
The utility model relates to a papermaking raw materials is dust collector for breakage.
Background
The paper making raw materials are mainly plant fibers, and the plant fiber raw materials are divided into straw pulp, wood pulp, bamboo pulp, reed pulp and the like, wherein the straw pulp is prepared by taking straws such as rice straws, wheat straws and the like as raw materials and needs to be crushed, and the straws contain more soil dust and the like and can be used for preparing the straw pulp after dust removal operation. The existing equipment for crushing the raw materials has a too simple structure, generally only roughly removes impurities such as soil, dust and the like in the process of crushing the forage, has a limited dust removal effect, and also needs to be additionally subjected to dust removal treatment in the subsequent processing process, so that an additional dust removal facility is added, the cost is improved, and the efficiency of crushing and removing dust of the papermaking raw materials is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a papermaking raw materials is dust collector for breakage has carried out getting rid of and smashing the elimination of the dust pollution of in-process of dust in the raw materials in the whole broken handle process of papermaking raw materials, has guaranteed papermaking raw materials's clean health, avoids follow-up increase dust removal facility separately or clear up clear trouble to the raw materials separately, has reduced manufacturing cost, has promoted papermaking raw materials treatment efficiency, has solved the problem that exists among the prior art.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
a papermaking raw material dust collector for crushing includes:
the lifting mechanism is used for lifting the forage upwards into the feed bin;
the compression roller primary crushing mechanism is used for primarily extruding and crushing forage falling from the bin and separating dust and the forage; the side wall of the compression roller primary crushing mechanism is connected with a first dust removal mechanism through a first dust absorption pipeline, and the first dust removal mechanism is used for collecting flying dust in the compression roller primary crushing mechanism; a first filter screen is arranged on the side wall of the compression roller primary crushing mechanism corresponding to the first dust absorption pipeline; a rotary baffle is arranged at the lower part of the compression roller primary crushing mechanism;
the blanking device is connected with a discharge port at the bottom of the compression roller primary crushing mechanism, and an inclined sieve is arranged in the blanking device; the space of the blanking device below the inclined screen is communicated with the first dust removal mechanism through a first branch pipeline;
the crushing and shearing machine is used for collecting the materials falling from the blanking device and shearing and crushing the materials; the side wall of the crushing and shearing machine is connected with a second dust removing mechanism through a second dust collecting pipeline, and the second dust removing mechanism is used for collecting flying dust in the crushing and shearing machine; a second filter screen is arranged on the side wall of the crushing and shearing machine corresponding to the second dust suction pipeline;
the screening box is arranged below the crushing and shearing machine and used for separating and screening crushed materials, a vibrating motor is arranged on the side wall of the screening box, and a cambered surface screen is arranged in the screening box; a first box door and a second box door are arranged on the screening boxes above and below the cambered surface screen; the inner space of the screening box is communicated with the second dust removing mechanism through a second branch pipeline.
Furthermore, the first dust removing pipeline of the first dust removing mechanism is provided with the first branch pipeline, and the first branch pipeline is communicated with the upper blanking bin below the inclined screen. And a third filter screen is arranged on the side wall of the upper blanking bin below the inclined screen corresponding to the first branch pipeline.
And furthermore, a second dust removal pipeline of the second dust removal mechanism is provided with a second branch pipeline which is communicated with the inside of the screening box above the cambered surface screen. And a fourth filter screen is arranged on the side wall of the screening box corresponding to the second branch pipeline.
Further, the bottom of first chamber door is unanimous with cambered surface screen cloth radian.
Further, still set up a transition storehouse between feed bin and compression roller primary crushing mechanism, set up the stirring board in the transition storehouse, the stirring board rotates through a motor drive, and the stirring board is stirred the material of feed bin whereabouts and is broken up.
Further, the first dust removing mechanism comprises a first cyclone separator and a first bag type dust remover connected with an outlet at the upper part of the first cyclone separator, and the first bag type dust remover is connected with a first centrifugal fan; the second dust removing mechanism comprises a second cyclone separator and a second bag type dust remover connected with an outlet at the upper part of the second cyclone separator, and the second bag type dust remover is connected with a second centrifugal fan.
Furthermore, a conveying belt is arranged at the bottom in the screening box and penetrates through the side wall of the screening box.
Further, hoist mechanism sets up the storage silo including promoting the flood dragon in the promotion flood dragon lower part, connects on promotion flood dragon upper portion the feed bin.
Furthermore, the compression roller primary crushing mechanism comprises two toothed rods which are oppositely meshed, and the two toothed rods rotate relatively under the drive of a motor; the rotating baffles comprise two rotating baffles which are horizontally arranged at intervals, and the two rotating baffles are respectively driven by the second motor.
Furthermore, the blanking device comprises an upper blanking bin and a lower blanking bin, and the inclined screen is arranged in the upper blanking bin; the first dust removal mechanism is communicated with an upper blanking bin below the inclined screen.
Furthermore, a cutter is arranged in the crushing and shearing machine and is driven to rotate by a driving shaft connected with a third motor.
Furthermore, the first box door is arranged on the side wall of the screening box above the cambered surface screen, and the second box door is arranged on the side wall of the screening box below the cambered surface screen.
Further, the vibrating motor is evenly arranged on the side wall of the screening box at intervals.
Further, the mesh openings of the inclined screens are as small as possible, mainly for intercepting and screening falling dust and dirt.
The utility model has the advantages that:
the utility model discloses a dust collector for papermaking raw materials is broken has carried out getting rid of and smashing the elimination of the dust pollution of in-process of dust in the raw materials in the whole broken handle process of papermaking raw materials, has guaranteed papermaking raw materials's clean health, avoids follow-up increase dust collecting equipment separately or clear up clear trouble to the raw materials separately, has reduced manufacturing cost, has promoted papermaking raw materials treatment effeciency. The lifting dragon is adopted for lifting before the initial grinding, so that the cleaning effect of primarily removing dust attached to the raw materials can be achieved in the raw material lifting process, and the soil or dust attached to the forage can be dropped and removed in the rotary lifting process, so that the raw materials entering the storage bin can be pre-cleaned of dust and impurities; the raw materials that get into the feed bin are dialled because of the rotation of stirring the board in the transition storehouse and are dispersed, play further separation effect to the dust on the forage. Through the primary crushing mechanism of compression roller, can carry out preliminary extrusion breakage to the raw materials, by tooth rod extrusion breakage back, dust earth on the primary crushing raw materials also can be by the extrusion dispersion, and through the stirring effect of stirring board, forms dust and raw materials and stirs the dispersion, and dust, the dust that forms in the primary crushing mechanism of compression roller can remove dust under the effect of first dust removal mechanism and handle. The setting of inclined screen in the blanking storehouse can further sieve the raw materials and the interior dust of mixing of falling of compression roller primary crushing mechanism, at the material process of walking away of inclined screen, and the dust of little fineness, soil powder fall into the upper portion blanking storehouse of inclined screen below, and then remove dust by second dust removal mechanism. The primary crushing material collected through the blanking bin continues to enter the crushing shearing machine for further crushing, and the cleanliness of the raw material is improved compared with that of the existing equipment, and meanwhile, the dust diffusion is reduced. Screening the broken materials through the screening box, outputting the qualified materials through the conveying belt, and taking out the materials above the cambered surface screen through the first box door to be crushed again.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is a schematic view of the lower portion of a toothed bar of the crushing mechanism of the press roll of FIG. 1;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
The device comprises a bin 1, a lifting dragon, a stirring plate 3, a first motor 4, a first dust suction pipeline 5, a first cyclone separator 6, a first bag type dust remover 7, a first centrifugal fan 8, a first filter screen 9, a rotating baffle 10, a second motor 11, a blanking device 12, a blanking bin 12.1 arranged above the first dust suction pipeline, a blanking bin 12.2 arranged below the lower dust suction pipeline, an inclined sieve 13, a first branch pipeline 14, a third filter screen 15, a crushing and shearing machine 16, a second dust suction pipeline 17, a second filter screen 18, a cutter 19, a third motor 20, a vibrating motor 21, a cambered surface screen 22, a bin door 23, a conveyor belt 24, a second bin door 25, a transition bin 26, a toothed bar 27, a second cyclone separator 28, a second bag type dust remover 29, a second centrifugal fan 30, a screening bin 31, a second branch pipeline 32 and a fourth filter screen 33.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention is explained in detail below by means of specific embodiments and with reference to the attached drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1-2, the dust removing device for crushing the papermaking raw materials comprises a lifting auger 2 for lifting the forage upwards into a storage bin 1, and during lifting, large impurities such as soil particles in the forage are primarily removed; the transition bin 26 is connected below the stock bin, the stirring plate 3 is arranged in the transition bin, the stirring plate is driven by the first motor 4 to rotate, and the stirring plate turns and breaks up the falling materials of the stock bin 1. A compression roller primary crushing mechanism is connected at the outlet of the transition bin, the compression roller primary crushing mechanism comprises two toothed rods 27 which are oppositely meshed, and the two toothed rods rotate relatively under the drive of a motor; the compression roller primary crushing mechanism is used for carrying out primary extrusion crushing on forage falling from the feed bin, and separating dust and the forage; the side wall of the compression roller primary crushing mechanism is connected with a first dust removal mechanism through a first dust absorption pipeline 5, and the first dust removal mechanism is used for collecting flying dust in the compression roller primary crushing mechanism; the first dust removing mechanism comprises a first cyclone separator 6 and a first bag type dust remover 7 connected with an outlet at the upper part of the first cyclone separator, and a first centrifugal fan 8 is connected on the first bag type dust remover; a first filter screen 9 is arranged on the side wall of the compression roller primary crushing mechanism corresponding to the first dust absorption pipeline; the lower part of the compression roller primary crushing mechanism is provided with two rotating baffles 10 which are horizontally arranged at intervals, the two rotating baffles are respectively driven by a second motor 11, and the two rotating baffles are horizontally arranged at intervals in the compression roller primary crushing mechanism; two rotation baffle do not realize separating the shelves completely to the preliminary garrulous mechanism inner space of compression roller, and on the one hand it can disperse the material of being just garrulous by the tooth rod when opening the use, and on the other hand it can not open the time at the initial stage of work, plays certain supporting role to the material of tooth rod position, increases the effect of just garrulous. A discharging port at the bottom of the compression roller primary crushing mechanism is connected with a blanking device 12, the blanking device comprises an upper blanking bin 12.1 and a lower blanking bin 12.2, and an inclined sieve 13 is arranged in the blanking device and is arranged in the upper blanking bin; the first dust removing mechanism is communicated with an upper blanking bin below the inclined screen, a first branch pipeline 14 is connected to the first dust absorbing pipeline 5, and an inlet of the first branch pipeline is communicated with the blanking bin below the inclined screen. And a third filter screen 15 is arranged on the side wall of the upper blanking bin below the inclined screen corresponding to the first branch pipeline. The outlet of the lower material falling device is connected with the feed inlet of the crushing and shearing machine 16; the side wall of the crushing and shearing machine is connected with a second dust removing mechanism through a second dust absorption pipeline 17, and the second dust removing mechanism is used for collecting flying dust in the crushing and shearing machine; the second dust removing mechanism comprises a second cyclone separator 28 and a second bag type dust remover 29 connected with the outlet at the upper part of the second cyclone separator, and a second centrifugal fan 30 is connected on the second bag type dust remover; a second filter screen 18 is arranged on the side wall of the crushing and shearing machine corresponding to the second dust suction pipeline; a cutter 19 is arranged in the crushing and shearing machine and is driven to rotate by a driving shaft connected with a third motor 20. The screening box 31 is arranged below a discharge port of the crushing and shearing machine, a vibration motor 21 is arranged on the side wall of the screening box and used for separating and screening crushed materials, and a cambered surface screen 22 is arranged in the screening box; set up first chamber door 23 on the screening case lateral wall of cambered surface screen cloth top, the bottom of first chamber door is unanimous with cambered surface screen cloth radian, and one side of first chamber door is articulated with screening case lateral wall. And a second box door 25 is arranged on the side wall of the screening box below the cambered surface screen. And a second branch pipeline 32 is arranged on the second dust removing pipeline 17 of the second dust removing mechanism and communicated with the inside of the screening box above the cambered surface screen. A fourth filter screen 33 is arranged on the side wall of the screening box corresponding to the second branch pipeline.
The working process is as follows: the lifting flood dragon 2 is opened, forage raw materials are put into the storage bin, the lifting flood dragon gradually lifts the forage upwards into the storage bin 1, and during the rotary lifting feeding process, pre-separation is achieved for dust or soil particles which are mixed in the forage and attached to the forage; at this in-process, open first motor 4 and drive tooth rod 27's motor, stirring board 3 in the transition storehouse 26 rotates, the material that will fall down by feed bin 1 is broken up, further dust and dust on the material of slapping, get into after that and be extruded the primary fragmentation between the tooth rod 27, this process has realized the further processing to attached dust on the material, treat tooth rod operation certain time, open second motor 11, rotation baffle 10 rotates, carry out the limit to near the accumulational material of tooth rod and stir the limit and promote the whereabouts. In the process, under the action of the first centrifugal fan 8, fly dust in the compression roller primary crushing mechanism can enter the first dust absorption pipeline 9 through the first filter screen 9, and is subjected to dust removal and separation through the first cyclone separator 6 and the first bag type dust collector 7. The material gets into upper portion blanking storehouse 12.1, and at this moment, the dust of separating in material and the material can be through inclined screen 13, because the sieve mesh on the inclined screen supplies dust to filter as far as possible, and the inclined plane setting of inclined screen in addition has realized the better separation of dust in the material, and the flying dust in the upper portion blanking storehouse of inclined screen below can realize removing dust by first dust removal mechanism through third filter screen 15, first branch pipeline 14. The materials continuously entering the lower blanking bin 12.2 finally enter the crushing and shearing machine, and the third motor 20 is started in advance, so that the materials entering the crushing and shearing machine are fully sheared and crushed under the action of the cutter 19 after entering; at this time, the flying dust in the crushing and shearing machine enters the second cyclone separator and the second bag type dust collector through the second filter screen 18 and the second dust suction pipeline 17 to realize dust removal and separation under the action of the second centrifugal fan 30. The materials falling from the discharge port of the crushing and shearing machine continuously pass through the cambered surface screen 22 in the screening box 31 and the vibration motor 21 to realize separation, and the dust in the separation process continuously passes through the fourth screen 33 on the side wall of the screening box and enters the second dust removal mechanism through the second branch pipeline 32 to be separated. After the screening is finished, closing the dust removal mechanism, opening the second box door 25, and collecting the screened materials; and the materials intercepted by the cambered surface screen can be collected through the position of the first box door 23 and then are crushed again.
Example 2
As shown in fig. 3, the dust removing device for crushing papermaking raw materials is the same as the dust removing device for crushing papermaking raw materials of embodiment 1, except that a conveyer belt 24 is further disposed at the bottom in the screening box, one side of the conveyer belt penetrates through the side wall of the bottom of the screening box, and the second box door 25 is disposed on the side wall of the screening box above the conveyer belt. So set up, after the screening, can open the second chamber door, will sieve the material by conveyer belt 24 and directly export.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (9)
1. The utility model provides a papermaking raw materials is dust collector for breakage which characterized in that includes:
the lifting mechanism is used for lifting the forage upwards into the feed bin;
the compression roller primary crushing mechanism is used for primarily extruding and crushing forage falling from the feed bin; the side wall of the compression roller primary crushing mechanism is connected with a first dust removal mechanism through a first dust absorption pipeline, and the first dust removal mechanism is used for collecting flying dust in the compression roller primary crushing mechanism; a first filter screen is arranged on the side wall of the compression roller primary crushing mechanism corresponding to the first dust absorption pipeline; a rotary baffle is arranged at the lower part of the compression roller primary crushing mechanism;
the blanking device is connected with a discharge port at the bottom of the compression roller primary crushing mechanism, and an inclined sieve is arranged in the blanking device; the space of the blanking device below the inclined screen is communicated with the first dust removal mechanism through a first branch pipeline;
the crushing and shearing machine is used for collecting the materials falling from the blanking device and shearing and crushing the materials; the side wall of the crushing and shearing machine is connected with a second dust removing mechanism through a second dust collecting pipeline, and the second dust removing mechanism is used for collecting flying dust in the crushing and shearing machine; a second filter screen is arranged on the side wall of the crushing and shearing machine corresponding to the second dust suction pipeline;
the screening box is arranged below the crushing and shearing machine and used for separating and screening crushed materials, a vibrating motor is arranged on the side wall of the screening box, and a cambered surface screen is arranged in the screening box; a first box door and a second box door are arranged on the screening boxes above and below the cambered surface screen; the inner space of the screening box is communicated with the second dust removing mechanism through a second branch pipeline.
2. The dust removing device for crushing the papermaking raw materials as claimed in claim 1, wherein a transition bin is further arranged between the bin and the compression roller primary crushing mechanism, a stirring plate is arranged in the transition bin, the stirring plate is driven to rotate by a first motor, and the stirring plate is used for stirring and scattering materials falling from the bin.
3. The papermaking raw material crushing dust removing device according to claim 1 or 2, wherein the first dust removing mechanism comprises a first cyclone separator and a first bag type dust remover connected with an upper outlet of the first cyclone separator, and a first centrifugal fan is connected to the first bag type dust remover; the second dust removing mechanism comprises a second cyclone separator and a second bag type dust remover connected with an outlet at the upper part of the second cyclone separator, and the second bag type dust remover is connected with a second centrifugal fan.
4. The dust collector for crushing papermaking raw materials according to claim 1 or 2, characterized in that the lifting mechanism comprises a lifting auger, a storage bin is arranged at the lower part of the lifting auger, and the storage bin is connected to the upper part of the lifting auger.
5. The dust removing device for crushing the papermaking raw material according to claim 1 or 2, wherein the compression roller primary crushing mechanism comprises two toothed rollers which are meshed with each other and rotate relatively under the driving of a motor; the rotating baffles comprise two rotating baffles which are horizontally arranged at intervals, and the two rotating baffles are respectively driven by the second motor.
6. The dust removing device for crushing papermaking raw materials according to claim 1 or 2, wherein the blanking device comprises an upper blanking bin and a lower blanking bin, and the inclined screen is arranged in the upper blanking bin; the first dust removal mechanism is communicated with an upper blanking bin below the inclined screen.
7. The dust removing device for crushing papermaking stock according to claim 1 or 2, wherein a cutter is provided in the crushing cutter, and the cutter is driven to rotate by a drive shaft connected to a third motor.
8. The dust removing device for crushing the papermaking raw material according to claim 1 or 2, wherein the first door is arranged on the side wall of the screening box above the cambered screen, and the second door is arranged on the side wall of the screening box below the cambered screen.
9. The papermaking stock comminution dusting device as claimed in claim 1 or 2, wherein a plurality of the vibration motors are provided at regular intervals on the side wall of the screening box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023277225.1U CN214437645U (en) | 2020-12-29 | 2020-12-29 | Papermaking raw materials is dust collector for breakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023277225.1U CN214437645U (en) | 2020-12-29 | 2020-12-29 | Papermaking raw materials is dust collector for breakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214437645U true CN214437645U (en) | 2021-10-22 |
Family
ID=78135953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023277225.1U Active CN214437645U (en) | 2020-12-29 | 2020-12-29 | Papermaking raw materials is dust collector for breakage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214437645U (en) |
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2020
- 2020-12-29 CN CN202023277225.1U patent/CN214437645U/en active Active
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