CN113600062A - Dispersion equipment for papermaking - Google Patents
Dispersion equipment for papermaking Download PDFInfo
- Publication number
- CN113600062A CN113600062A CN202110797119.6A CN202110797119A CN113600062A CN 113600062 A CN113600062 A CN 113600062A CN 202110797119 A CN202110797119 A CN 202110797119A CN 113600062 A CN113600062 A CN 113600062A
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- fixedly connected
- wall
- working box
- sliding
- rod
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- 239000006185 dispersion Substances 0.000 title claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims description 8
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 33
- 239000002994 raw material Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 11
- 239000000835 fiber Substances 0.000 description 5
- 239000002270 dispersing agent Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Images
Abstract
The invention discloses a dispersing device for papermaking, which comprises a working box and an auxiliary stirring mechanism, wherein a motor is fixedly connected to the side wall of the working box, the output end of the motor penetrates through the working box and is fixedly connected with a rotating rod, a first gear is fixedly sleeved on the rotating rod, a first flat plate is fixedly connected in the working box, a groove is formed in the upper end surface of the first flat plate, and a first toothed plate is slidably connected in the groove. According to the invention, the motor, the first gear and the first toothed plate are matched, so that the first stirring blade can be driven to rotate, the paper pulp raw materials in the working box are stirred, and the paper pulp raw materials at the upper position and the lower position of the working box can be uniformly stirred; through the cooperation setting of stay cord, second pinion rack and second gear, can drive the rotation of second stirring leaf to stir the paper pulp raw materials of work box edge, thereby make the paper pulp stirring of work box edge, and then improved the effect of paper pulp dispersion.
Description
Technical Field
The invention relates to the technical field of papermaking, in particular to a dispersing device for papermaking.
Background
Paper is a sheet-like fibrous product used for writing, printing, drawing, packaging, or the like. The plant fiber pulp is produced with water suspension of plant fiber, and through the combination of crossing on net, initial dewatering, compression and stoving. China is the world in which paper was invented the earliest. According to archaeological findings, China already has hemp fiber paper in the period of Western Han dynasty.
Paper dispersion is a step in the papermaking processing, and paper fiber and filler etc. in the paper pulp have the hydrophobicity, have the tendency of flocculation agglomeration, need accelerate the homodisperse of fibre and filler in the paper pulp with dispersion equipment, at paper pulp dispersion in-process, need add the dispersant, current dispersion devices all use the stirring leaf to carry out simple stirring to paper pulp, but the effect of stirring is very poor, and the paper pulp of device edge can't stir moreover, and then leads to the effect of paper pulp dispersion very poor.
In order to solve the problems, a dispersing device for papermaking is provided.
Disclosure of Invention
The invention aims to solve the defects that the dispersing effect of paper pulp is poor because the existing dispersing device simply stirs the paper pulp by using a stirring blade in the prior art that the dispersing agent needs to be added in the paper pulp dispersing process, but the stirring effect is poor, and the paper pulp at the edge of the device cannot be stirred, so that the paper pulp dispersing effect is poor, thereby providing the dispersing equipment for papermaking.
In order to achieve the purpose, the invention adopts the following technical scheme:
a dispersion equipment for papermaking comprises a working box and an auxiliary stirring mechanism, wherein a motor is fixedly connected to the side wall of the working box, the output end of the motor penetrates through the working box and is fixedly connected with a rotating rod, a first gear is fixedly sleeved on the rotating rod, a first flat plate is fixedly connected in the working box, a groove is formed in the upper end face of the first flat plate, a first toothed plate is slidably connected in the groove, the first gear and the first toothed plate are meshed and connected, a fixed rod is rotatably connected to the lower end face of the first toothed plate, a through hole is formed in the groove, the fixed rod is slidably connected in the through hole, a first rotating wheel is fixedly sleeved on the fixed rod, a second flat plate is fixedly connected in the working box, a placing groove is formed in the side wall of the second flat plate, the first rotating wheel abuts against the placing groove, and a cross rod is fixedly connected to the lower end of the fixed rod, two risers of symmetry fixedly connected with on the lateral wall of horizontal pole, two the spout, every have all been seted up to the relative one side of riser equal fixedly connected with slide bar in the spout, every the slider has all been cup jointed in the equal slip on the slide bar, every first spring has all been cup jointed on the slide bar, two common fixedly connected with bracing piece between the slider, fixedly connected with montant on the lateral wall of bracing piece, equidistant a plurality of first stirring leaves of symmetry fixedly connected with on the montant.
Preferably, supplementary rabbling mechanism includes two stay cords, every fixed connection is in the left side both sides of first pinion rack respectively to the one end of stay cord, two cavities have been seted up to the symmetry in the left and right sides inner wall of work box, every all rotate through the connecting block in the cavity and be connected with the second and rotate the wheel, every equal fixedly connected with gag lever post in the cavity, every the fixed block has all been cup jointed in the equal slip on the gag lever post, every equal fixedly connected with second pinion rack, every on the lateral wall of fixed block the one end that the stay cord deviates from first pinion rack all runs through cavity and fixed connection at the up end of second pinion rack, every the equal sliding connection of stay cord rotates on the wheel at the second.
Preferably, two all cup jointed the second spring on the gag lever post, every the both ends difference fixed connection of second spring is on the lateral wall of fixed block and the inner wall of cavity, every the meshing of impartial interval is connected with a plurality of second gears on the second pinion rack, every the equal level of center department of second gear is fixed to be alternates there is the connecting rod, every the one end of connecting rod is all rotated and is connected on the inner wall of cavity, every the other end of connecting rod all runs through cavity and fixedly connected with second stirring leaf, every the connecting rod is all rotated and is connected in the inner wall of work box, every all rotate on the connecting rod and cup jointed the sealing washer, every one side of sealing washer all supports on the inner wall of work box.
Preferably, the upper end face fixedly connected with inlet pipe of work box, the upper end slip of inlet pipe has cup jointed sealed lid, the lower terminal surface fixedly connected with support frame of work box.
Preferably, the lower end face of the working box is fixedly connected with a discharge pipe, and the discharge pipe is fixedly connected with a valve.
Preferably, two slide holes are symmetrically formed in the inner wall of the working box and communicated with the cavity, and each pull rope is connected to the slide holes in a sliding mode.
Preferably, two ends of the two first springs are respectively and fixedly connected to the side wall of the sliding block and the inner wall of the sliding groove.
Preferably, the two sliding blocks are connected in the sliding grooves in a sliding mode, and the two fixed blocks are connected in the sliding grooves in a sliding mode.
Compared with the prior art, the invention has the beneficial effects that:
the motor, the first gear and the first toothed plate are matched to drive the first stirring blade to rotate, so that the paper pulp raw materials in the working box are stirred, and the paper pulp raw materials at the upper position and the lower position of the working box can be uniformly stirred; through the cooperation setting of stay cord, second pinion rack and second gear, can drive the rotation of second stirring leaf to stir the paper pulp raw materials of work box edge, thereby make the paper pulp stirring of work box edge, and then improved the effect of paper pulp dispersion.
Drawings
Fig. 1 is a schematic front perspective view of a dispersing apparatus for papermaking according to the present invention;
FIG. 2 is a schematic sectional front view of a dispersion apparatus for papermaking according to the present invention;
FIG. 3 is a schematic side view of a dispersion apparatus for papermaking according to the present invention;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;
fig. 5 is an enlarged schematic structural diagram of B in fig. 2 according to the present invention.
In the figure: 1 work box, 2 motors, 3 rotating rods, 4 first gears, 5 first flat plates, 6 first toothed plates, 7 fixed rods, 8 first rotating wheels, 9 discharging pipes, 10 transverse rods, 11 vertical plates, 12 sliding rods, 13 sliding blocks, 14 first springs, 15 supporting rods, 16 vertical rods, 17 first stirring blades, 18 second flat plates, 19 pull ropes, 20 second rotating wheels, 21 limiting rods, 22 second springs, 23 second toothed plates, 24 second gears, 25 connecting rods, 26 second stirring blades, 27 sealing rings, 28 supporting frames and 29 feeding pipes.
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.
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, are merely for convenience in describing the present invention and simplifying the 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 thus, should not be construed as limiting the present invention.
Referring to fig. 1-5, a dispersion apparatus for papermaking, comprising a working box 1 and an auxiliary stirring mechanism, wherein a motor 2 is fixedly connected to a side wall of the working box 1, an output end of the motor 2 penetrates through the working box 1 and is fixedly connected with a rotating rod 3, a first gear 4 is fixedly sleeved on the rotating rod 3, a first flat plate 5 is fixedly connected to the inside of the working box 1, a groove is formed in an upper end surface of the first flat plate 5, a first toothed plate 6 is slidably connected to the groove, the first gear 4 and the first toothed plate 6 are engaged and connected, a fixing rod 7 is rotatably connected to a lower end surface of the first toothed plate 6, a through hole is formed in the groove, the fixing rod 7 is slidably connected to the through hole, a first rotating wheel 8 is fixedly sleeved on the fixing rod 7, a second flat plate 18 is fixedly connected to the inside of the working box 1, a placing groove is formed in a side wall of the second flat plate 18, the first rotating wheel 8 abuts against the placing groove, lower extreme fixedly connected with horizontal pole 10 of dead lever 7, two risers 11 of symmetry fixedly connected with on the lateral wall of horizontal pole 10, the spout has all been seted up to one side that two risers 11 are relative, equal fixedly connected with slide bar 12 in every spout, slider 13 has all been cup jointed in the equal slip on every slide bar 12, first spring 14 has all been cup jointed on every slide bar 12, common fixedly connected with bracing piece 15 between two sliders 13, fixedly connected with montant 16 on the lateral wall of bracing piece 15, equidistant a plurality of first stirring leaf 17 of symmetry fixedly connected with on montant 16, through motor 2, the cooperation setting of first gear 4 and first pinion rack 6, can drive first stirring leaf 17 and rotate, thereby stir the paper pulp raw materials in the work box 1, the paper pulp raw materials that makes work box 1 upper and lower position all can the stirring.
Wherein, supplementary rabbling mechanism includes two stay cords 19, the one end difference fixed connection of every stay cord 19 is in the left side both sides of first pinion rack 6, two cavitys have been seted up to the symmetry in the left and right sides inner wall of work box 1, all be connected with second rotating wheel 20 through the connecting block rotation in every cavity, equal fixedly connected with gag lever post 21 in every cavity, the fixed block has all been cup jointed in the equal slip on every gag lever post 21, equal fixedly connected with second pinion rack 23 on the lateral wall of every fixed block, the one end that every stay cord 19 deviates from first pinion rack 6 all runs through cavity and fixed connection at the up end of second pinion rack 23, the equal sliding connection of every stay cord 19 is on second rotating wheel 20, stay cord 19 can drive second pinion rack 23 and reciprocate.
Wherein, all cup jointed second spring 22 on two gag lever posts 21, the both ends difference fixed connection of every second spring 22 is on the lateral wall of fixed block and the inner wall of cavity, impartial interval's meshing is connected with a plurality of second gears 24 on every second pinion rack 23, the fixed interlude of the center department average level of every second gear 24 has connecting rod 25, the one end of every connecting rod 25 is all rotated and is connected on the inner wall of cavity, the other end of every connecting rod 25 all runs through cavity and fixedly connected with second stirring leaf 26, every connecting rod 25 all rotates to be connected in the inner wall of work box 1, all rotate on every connecting rod 25 and cup jointed sealing washer 27, one side of every sealing washer 27 all supports on the inner wall of work box 1, second pinion rack 23 can drive second stirring leaf 26 through second gear 24 and rotate, the paper pulp to device edge stirs.
Wherein, the up end fixedly connected with inlet pipe 29 of work box 1, the sealed lid of sliding cup joint in the upper end of inlet pipe 29, the lower terminal surface fixedly connected with support frame 28 of work box 1, support frame 28 can play the effect of support to the device.
Wherein, the lower terminal surface fixedly connected with of work box 1 arranges material pipe 9, arranges material pipe 9 and go up fixedly connected with valve, and the paper pulp after the dispersion can be followed and arrange material pipe 9 and discharged.
Wherein, two slide holes are symmetrically arranged on the inner wall of the working box 1 and communicated with the cavity, each pull rope 19 is connected in the slide hole in a sliding way, and the pull rope 19 can move by the second gear plate 23.
Wherein, two ends of two first springs 14 are respectively fixed connection on the lateral wall of slider 13 and on the inner wall of spout, and first spring 14 can play the effect that resets.
Wherein, the equal sliding connection of two sliders 13 is in the spout, and the equal sliding connection of two fixed blocks is in the spout, and slider 13 and fixed block can play spacing effect.
In the invention, raw materials such as paper pulp, a dispersing agent and the like are added from a feeding pipe 29, a motor 2 is started, an output end of the motor drives a rotating rod 3 to rotate, the rotating rod 3 drives a first gear 4 to rotate, the first gear 4 drives a first toothed plate 6 to move left and right, the first toothed plate 6 drives a fixed rod 7 to move left and right, the fixed rod 7 drives a first rotating wheel 8 and a transverse rod 10 to move left and right, the first rotating wheel 8 rotates on a second flat plate 18 under the action of friction force, so that the transverse rod 10 is driven to rotate, the transverse rod 10 rotates while moving left and right, the transverse rod 10 drives a vertical plate 11 to move left and right and rotate to stir paper pulp, the vertical plate 11 drives a supporting rod 15 to move left and right and rotate, the supporting rod 15 drives a first stirring blade 17 to move left and right through a vertical rod 16 and rotate, centrifugal force is generated when the vertical rod 16 rotates, the centrifugal force is greater than the elastic force of a spring, the vertical rod 16 is driven to move downwards and the first spring 14 is stretched through a sliding block 13, the first paralysis 14 has opposite elasticity, and the first spring 14 has the reset function, so that the first stirring blade 17 is driven to stir the paper pulp raw material at the bottom of the working box 1; the first toothed plate 6 moves left and right and simultaneously drives the second toothed plate 23 to move up and down through the pull rope 19, the second toothed plate 23 can drive the second gear 24 to rotate when moving up and down, the second gear 24 can drive the connecting rod 25 to rotate, and the connecting rod 25 drives the second stirring blade 26 to rotate so as to stir the edge of the working box 1; the motor 2, the first gear 4 and the first toothed plate 6 are matched to drive the first stirring blade 17 to rotate, so that the paper pulp raw materials in the working box 1 are stirred, and the paper pulp raw materials at the upper position and the lower position of the working box 1 can be uniformly stirred; through the cooperation setting of stay cord 19, second toothed plate 23 and second gear 24, can drive second stirring leaf 26 and rotate to stir the paper pulp raw materials of work box 1 edge, thereby make the paper pulp stirring of work box 1 edge, and then improved the effect of paper pulp dispersion.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides a dispersion equipment of papermaking, includes work box (1) and supplementary rabbling mechanism, a serial communication port, fixedly connected with motor (2) on the lateral wall of work box (1), the output of motor (2) runs through work box (1) and fixedly connected with dwang (3), it has first gear (4) to fix the cover on dwang (3), fixedly connected with first flat board (5) in work box (1), the up end of first flat board (5) is seted up flutedly, sliding connection has first pinion rack (6) in the recess, meshing connection between first gear (4) and first pinion rack (6), the lower terminal surface of first pinion rack (6) rotates and is connected with dead lever (7), open in the recess and be equipped with the through-hole, dead lever (7) sliding connection is in the through-hole, the fixed cover has been connected with first change wheel (8) on dead lever (7), a second flat plate (18) is fixedly connected in the work box (1), a placing groove is arranged on the side wall of the second flat plate (18), the first rotating wheel (8) is propped against the placing groove, the lower end of the fixed rod (7) is fixedly connected with a cross rod (10), two vertical plates (11) are symmetrically and fixedly connected to the side wall of the cross rod (10), sliding grooves are formed in the opposite sides of the two vertical plates (11), a sliding rod (12) is fixedly connected to each sliding groove, a sliding block (13) is sleeved on each sliding rod (12) in a sliding mode, a first spring (14) is sleeved on each sliding rod (12), a supporting rod (15) is fixedly connected between the two sliding blocks (13) together, fixedly connected with montant (16) on the lateral wall of bracing piece (15), equidistant symmetry fixedly connected with a plurality of first stirring leaves (17) on montant (16).
2. A dispersion apparatus for papermaking, according to claim 1, characterized in that said auxiliary stirring means comprises two pulling ropes (19), one end of each pulling rope (19) is fixedly connected to the left side and two sides of the first toothed plate (6) respectively, two cavities, every have been seted up to the symmetry in the left and right sides inner wall of work box (1) all rotate through the connecting block in the cavity and be connected with the second and rotate wheel (20), every equal fixedly connected with gag lever post (21), every the fixed block has been cup jointed in the equal slip on gag lever post (21), every equal fixedly connected with second pinion rack (23), every on the lateral wall of fixed block one end that stay cord (19) deviate from first pinion rack (6) all runs through cavity and fixed connection at the up end of second pinion rack (23), every equal sliding connection of stay cord (19) rotates on wheel (20) at the second.
3. The dispersing equipment for papermaking according to claim 2, characterized in that two limiting rods (21) are sleeved with second springs (22), two ends of each second spring (22) are respectively and fixedly connected to the side wall of the fixed block and the inner wall of the cavity, a plurality of second gears (24) are respectively and fixedly connected to each second toothed plate (23) in an engagement manner at equal intervals, a connecting rod (25) is horizontally and fixedly inserted in the center of each second gear (24), one end of each connecting rod (25) is rotatably connected to the inner wall of the cavity, the other end of each connecting rod (25) penetrates through the cavity and is fixedly connected with a second stirring blade (26), each connecting rod (25) is rotatably connected to the inner wall of the working box (1), and a sealing ring (27) is rotatably sleeved on each connecting rod (25), one side of each sealing ring (27) is propped against the inner wall of the working box (1).
4. A dispersion apparatus for papermaking according to claim 1, characterized in that the upper end surface of the working box (1) is fixedly connected with a feeding pipe (29), the upper end of the feeding pipe (29) is slidably sleeved with a sealing cover, and the lower end surface of the working box (1) is fixedly connected with a supporting frame (28).
5. A dispersion apparatus for papermaking according to claim 1, characterised in that a discharge pipe (9) is fixedly connected to the lower end surface of the working box (1), and a valve is fixedly connected to the discharge pipe (9).
6. A dispersion apparatus for papermaking according to claim 1, characterised in that the inner wall of the working box (1) is symmetrically provided with two slide holes and is in communication with the cavity, and each draw rope (19) is slidably connected in the slide hole.
7. A dispersion apparatus for papermaking according to claim 1, characterised in that the two first springs (14) are fixedly connected at their two ends to the side walls of the slide (13) and to the inner wall of the chute, respectively.
8. A dispersion apparatus for papermaking according to claim 1, characterised in that both said sliding blocks (13) are slidingly connected in a chute and both said fixed blocks are slidingly connected in a chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110797119.6A CN113600062B (en) | 2021-07-14 | 2021-07-14 | Dispersing equipment for papermaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110797119.6A CN113600062B (en) | 2021-07-14 | 2021-07-14 | Dispersing equipment for papermaking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113600062A true CN113600062A (en) | 2021-11-05 |
| CN113600062B CN113600062B (en) | 2024-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110797119.6A Active CN113600062B (en) | 2021-07-14 | 2021-07-14 | Dispersing equipment for papermaking |
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| CN (1) | CN113600062B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN206184296U (en) * | 2016-11-22 | 2017-05-24 | 北京三辰星火科技有限公司 | Anti -pollution flashover paint agitating unit |
| CN206215155U (en) * | 2016-11-28 | 2017-06-06 | 江西艾丽斯日化有限公司 | A kind of agitator for Cosmetic Manufacture |
| CN107456906A (en) * | 2017-09-04 | 2017-12-12 | 宁波新材料科技城犀鸟工业设计有限公司 | A kind of multi-faceted high-efficiency feed mixing arrangement |
| CN107626248A (en) * | 2017-11-14 | 2018-01-26 | 耒阳金悦科技发展有限公司 | A kind of potassium chlorate produces agitating device |
| CN107930478A (en) * | 2017-12-18 | 2018-04-20 | 无锡海特信成高分子科技有限公司 | A kind of organic silica gel reaction unit |
| CN210845934U (en) * | 2019-04-23 | 2020-06-26 | 南京顺鑫电子材料有限公司 | Homogeneity emulsification dispenser |
-
2021
- 2021-07-14 CN CN202110797119.6A patent/CN113600062B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206184296U (en) * | 2016-11-22 | 2017-05-24 | 北京三辰星火科技有限公司 | Anti -pollution flashover paint agitating unit |
| CN206215155U (en) * | 2016-11-28 | 2017-06-06 | 江西艾丽斯日化有限公司 | A kind of agitator for Cosmetic Manufacture |
| CN107456906A (en) * | 2017-09-04 | 2017-12-12 | 宁波新材料科技城犀鸟工业设计有限公司 | A kind of multi-faceted high-efficiency feed mixing arrangement |
| CN107626248A (en) * | 2017-11-14 | 2018-01-26 | 耒阳金悦科技发展有限公司 | A kind of potassium chlorate produces agitating device |
| CN107930478A (en) * | 2017-12-18 | 2018-04-20 | 无锡海特信成高分子科技有限公司 | A kind of organic silica gel reaction unit |
| CN210845934U (en) * | 2019-04-23 | 2020-06-26 | 南京顺鑫电子材料有限公司 | Homogeneity emulsification dispenser |
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| CN113600062B (en) | 2024-05-07 |
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Effective date of registration: 20240409 Address after: 062150 Botou Industrial Development Zone, Cangzhou City, Hebei Province Applicant after: Botou Longda Paper Co.,Ltd. Country or region after: China Address before: 518118 No. 8, Guangzu South Road, Laokeng community, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Applicant before: Yan Hong Country or region before: China |
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