CN115253491B - Cyclone and powder concentrator based on cyclone - Google Patents
Cyclone and powder concentrator based on cyclone Download PDFInfo
- Publication number
- CN115253491B CN115253491B CN202210714081.6A CN202210714081A CN115253491B CN 115253491 B CN115253491 B CN 115253491B CN 202210714081 A CN202210714081 A CN 202210714081A CN 115253491 B CN115253491 B CN 115253491B
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- China
- Prior art keywords
- cyclone
- isolation
- rotating rod
- isolation plate
- traction rope
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- 239000000843 powder Substances 0.000 title claims abstract description 29
- 238000002955 isolation Methods 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 claims abstract description 43
- 239000004744 fabric Substances 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/18—Cleaning-out devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
Abstract
The scheme discloses a cyclone barrel in the technical field of mineral powder screening, which comprises a cyclone barrel body, an isolation assembly, a power assembly and a transmission assembly; the cyclone body is provided with a stop block, a mounting groove, a material guide hole and a material collecting box, and the material collecting box is communicated with the material guide hole; the isolation assembly comprises isolation cloth and an isolation plate, one end of the isolation plate is rotationally connected in the mounting groove, the other end of the isolation plate extends into the material collecting box, and two ends of the isolation cloth are respectively and fixedly connected to the bottom of the material guide hole and the bottom of the isolation plate; the power assembly comprises a rotating rod and a cylindrical barrel fixedly connected to one end of the rotating rod, fan blades are uniformly distributed on the cylindrical barrel, and one end of the rotating rod is rotationally connected to the inner wall of the cyclone body; the transmission assembly comprises a traction rope and a pulley, the traction rope is lapped on the pulley, and two ends of the traction rope are respectively sleeved on the isolation plate and the non-center part of the cylindrical drum; the stop block is provided with a notch for passing the traction rope. The cyclone barrel can effectively reduce dust and reduce the flow velocity of the air flow gushing out of the cyclone barrel.
Description
Technical Field
The application belongs to the technical field of mineral powder screening, and particularly relates to a cyclone barrel and a powder concentrator based on the cyclone barrel.
Background
The classifying chamber of cyclone powder separator is a cylindrical shell made of steel plate. In the grading chamber, the small fan blades and the spreading disc are fixed on a vertical shaft together; the motor is driven to rotate through the transmission device, and a strong centrifugal force is formed in the classifying chamber. Under the action of centrifugal force, the gas-powder mixture entering the classifying chamber is thrown to the periphery of the classifying chamber and falls naturally without being influenced by centrifugal force because the large or heavy material is subjected to large centrifugal force, and is collected and discharged as coarse powder through a coarse powder pipe; the small or light materials are little influenced by centrifugal force, hover in the classifying chamber, are carried to a high position under the influence of airflow, and move into the cyclone cylinder along the ventilation pipe to be collected as fine powder.
In order to improve the yield of fine powder and reduce dust emission, the cyclone barrel of the cyclone type powder concentrator is modified in the patent with the application number of CN201820226747.2 and the patent name of 'a powder concentrator convenient for collecting fine powder', specifically: an opening is arranged on the side wall of the cyclone barrel, a material collecting box is fixedly connected to the opening, and the material collecting box is positioned on the outer wall of the cyclone barrel; the cyclone cylinder is rotationally connected with an inclined filter plate, one end of the filter plate, which is far away from the rotational connection part, is positioned in the opening, and a spring is connected between the end of the filter plate and the bottom end of the opening; and a vibrating motor is further arranged on the outer wall of the cyclone, and an output shaft of the vibrating motor penetrates through the side wall of the cyclone to be connected with the filter plate. Through setting up of filter, collection case and vibrating motor, when the fine powder is followed the wind and is flowed through the ventilation pipe and enter into the cyclone to when passing through from the filter, the wind flows directly from the hole on the filter, and the fine powder then enters into the collection case under vibrating motor's vibration effect. The improvement reduces dust emission to a certain extent, but because the wind flow does not totally and directly flow out from the air outlet of the cyclone after passing through the filter plate, but enters the material collecting box from the upper part and/or the lower part of the filter plate, part of fine powder is driven to return to the space below the filter plate again, and the dust emission is increased; in addition, because the wind flow has higher flow velocity, the wind flow still has larger kinetic energy after gushing out from the cyclone barrel, thereby causing disturbance to external dust, air and the like.
Disclosure of Invention
The application aims to provide a cyclone cylinder so as to reduce dust and reduce the flow velocity of air flow gushing out of the cyclone cylinder.
The cyclone cylinder comprises a cyclone cylinder body, an isolation assembly, a power assembly and a transmission assembly; the cyclone body is internally provided with a stop block;
the isolation assembly comprises flexible isolation cloth and an isolation plate for isolating the upper part and the lower part of the cyclone body, one end of the isolation plate is rotationally connected in the mounting groove, the other end of the isolation plate extends into the material collecting box, and two ends of the isolation cloth are respectively and fixedly connected to the material guide hole and the bottom of the isolation plate; the partition board is uniformly provided with ventilation holes;
the power assembly comprises a rotating rod and a cylindrical barrel fixedly connected to one end of the rotating rod, the cylindrical barrel is positioned above the isolation plate, fan blades are uniformly distributed on the cylindrical barrel, the fan blades positioned at the left side part of the cylindrical barrel are positioned under the stop block, and one end of the rotating rod is rotatably connected to the inner wall of the cyclone body;
the transmission assembly comprises a traction rope and a pulley rotatably connected in the cyclone cylinder body, the pulley is positioned above the cylindrical cylinder, the traction rope is lapped on the pulley, and two ends of the traction rope are respectively sleeved on the isolation plate and the non-center part of the cylindrical cylinder; the stop block is provided with a notch for passing the traction rope.
The working principle of the scheme and the beneficial effects thereof are that: when the cyclone is used, the cyclone cylinder is communicated with the ventilation pipe, and after the wind flows into the cyclone cylinder body through the ventilation pipe, the wind flows to the other side of the baffle block due to the blocking effect of the baffle block, and then acts on the fan blade on one side of the cylinder barrel, which is far away from the baffle block, and the fan blade drives the cylinder barrel and the rotating rod to rotate under the impact of the wind flow on the fan blade. Because the haulage rope cup joints in the non-center department of cylinder (can set up the connecting rod in the non-center department of cylinder and connect the haulage rope, also can set up the dwang into "Z" shape, cup joints the haulage rope in the dwang one end of keeping away from the cyclone body inner wall, ensures that the haulage rope cup joints in the non-center department of cylinder), at cylinder pivoted in-process, the high position that the separator one end was kept away from to the haulage rope is changing in taking place, and then drives the relative separator of haulage rope and lift up or put down to make the separator deflect at the vertical face. In the process, the wind flow impacts the fan blades, so that the speed of the wind flow is slowed down, and after the wind flows out of the cyclone body through the air holes on the isolation plate, the flow speed and the kinetic energy of the wind flow are greatly reduced, so that the disturbance to dust and air is reduced. In addition, because the fine powder is blocked by the isolation plate, the fine powder on the isolation plate can only enter the material collecting box through the material guide holes, and because of the arrangement of the isolation cloth, the fine powder is prevented from entering the cyclone body from the gap between the bottom of the isolation plate and the material guide holes, and the occurrence of dust is further reduced.
Further, the middle part of dwang is "U" shape, the cylinder has two and is located the both sides at dwang middle part respectively, and the both ends of dwang rotate respectively to be connected on two relative inner walls of whirlwind section of thick bamboo, the one end that the division board was kept away from to the haulage rope cup joints in the middle part of dwang. Through setting the middle part of dwang to "U" shape, the haulage rope cup joints in the middle part of dwang for the position of haulage rope connection dwang is in different height with the center pin of cylinder, is equivalent to the haulage rope and connects in the non-center department of cylinder, and then drives dwang and cylinder pivoted in-process at the windy stream, makes the one end that the haulage rope connects the dwang be located highly change, and then under the effect of haulage rope, drives the division board and rotates. Because the both ends of dwang rotate and connect on two relative inner walls of whirlwind section of thick bamboo for dwang and cylinder are more stable at pivoted in-process.
Further, the sleeve is sleeved at the U-shaped part of the rotating rod in a rotating way, and the traction rope is fixedly connected to the sleeve. Through telescopic setting, can be directly with haulage rope fixed connection on the sleeve, ensure the fastness of connection on the one hand, also make the loading and unloading of haulage rope more convenient simultaneously.
Further, the upper surface of division board is equipped with two bases, two rotate between the base and be connected with the pivot, the one end fixed connection that the cylinder was kept away from to the haulage rope is in the pivot. Through the setting of base and pivot, can be directly with haulage rope fixed connection in the pivot, ensure the fastness of connection on the one hand, also make the loading and unloading of haulage rope more convenient simultaneously.
Further, the side and the bottom of the material collecting box are both provided with openings, the opening part of the side of the material collecting box is connected with the outer wall of the cyclone body, and the outer wall of the cyclone body is hinged with a bottom plate for opening and closing the bottom opening of the material collecting box. The bottom plate for opening and closing the bottom opening of the material collecting box is arranged, so that the material is convenient to discharge. And one side wall of the material collecting box is provided with an opening, which is beneficial to reducing the weight of the material collecting box and saving materials.
Further, one end of the isolation plate, which is far away from the material collecting box, is an arc surface. One end of the isolation plate, which is far away from the material collecting box, is arranged to be an arc surface, so that the isolation plate can be better attached to the side wall of the mounting groove in the rotating process, and further, fine powder is further reduced or prevented from entering the cyclone cylinder body below from the mounting groove.
A powder selecting machine comprises an improved cyclone cylinder.
Drawings
Fig. 1 is a front cross-sectional view of a cyclone barrel according to embodiment 1 of the present application;
FIG. 2 is a right side view of the power assembly of FIG. 1;
fig. 3 is a front view of a powder concentrator according to embodiment 2 of the present application.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the cyclone cylinder comprises a cyclone cylinder body 1, a stop block 2, a notch 3, a cylindrical barrel 4, fan blades 5, a mounting groove 6, a separation plate 7, an air outlet 8, a bottom plate 9, a box body 10, a separation cloth 11, a material guide hole 12, a base 13, a rotating rod 14, a sleeve 15, a connecting block 16, a traction rope 17, a pulley 18 and a ventilation pipe 19.
Example 1 is substantially as shown in figures 1-2: a cyclone comprises a cyclone body 1, an isolation assembly, a power assembly and a transmission assembly; the axis direction of the cyclone body 1 is communicated, the top of the cyclone body 1 is an air inlet, the bottom is an air outlet 8, and the air outlet 8 end of the cyclone body 1 is funnel-shaped; the cyclone body 1 is internally provided with a mounting groove 6 and a material guide hole 12 on two opposite side walls respectively, the outer wall of the cyclone body 1 is provided with a material collecting box, the material collecting box comprises a bottom plate 9 and a box body 10, the side edge and the bottom of the box body 10 are both provided with openings, the opening part of the side edge of the box body 10 is connected with the outer wall of the cyclone body 1 and is communicated with the material guide hole 12, the material guide hole 12 is close to the inner top of the box body 10, the bottom plate 9 is in a convex shape, the smaller end of the bottom plate 9 is hinged on the outer wall of the cyclone body 1, and the hinged bottom plate 9 is used for opening or closing the bottom opening of the box body 10; a stop block 2 is arranged in the cyclone body 1, and a notch 3 is arranged on the stop block 2;
the isolation assembly comprises flexible isolation cloth 11 and an isolation plate 7 for isolating the upper part and the lower part of the cyclone body 1, one end of the isolation plate 7 is an arc surface, one end of the isolation plate 7 which is provided with the arc surface is rotationally connected in the mounting groove 6, the other end of the isolation plate 7 extends into the material collecting box, two ends of the isolation cloth 11 are respectively connected at the bottom of the material guide hole 12 and the isolation plate 7, and the connection mode is carried out in an adhesion and screw reinforcement mode; the spacer 7 is left with allowance, so that the spacer cloth 11 is prevented from being pulled when the spacer 7 rotates; the partition plate 7 is uniformly provided with ventilation holes, the upper surface of the partition plate 7 is also provided with two bases 13, and a rotating shaft is rotatably connected between the two bases 13;
the power assembly comprises a rotating rod 14 and two cylindrical drums 4, the middle part of the rotating rod 14 is U-shaped, the two cylindrical drums 4 are respectively and fixedly connected to two sides of the middle part of the rotating rod 14, namely, the U-shaped part of the rotating rod 14 is positioned between the two cylindrical drums 4, the cylindrical drums 4 are positioned above the isolation plate 7, fan blades 5 are uniformly distributed on the cylindrical drums 4, the fan blades 5 positioned at the left part of the cylindrical drums 4 are positioned under the stop blocks 2, two ends of the rotating rod 14 are respectively and rotatably connected to two opposite inner walls of the cyclone barrel, the U-shaped part of the rotating rod 14 is rotatably sleeved with a sleeve 15, the top of the sleeve 15 is provided with a connecting block 16, and the connecting block 16 is provided with a connecting hole;
the transmission assembly comprises a traction rope 17 and a pulley 18 rotatably connected in the cyclone cylinder body 1, the pulley 18 is positioned above the cylinder 4, the traction rope 17 is lapped on the pulley 18, one end of the traction rope 17 is bound on the connecting block 16 through a connecting hole, and the other end of the traction rope 17 is bound on the rotating shaft; the path of the hauling cable 17 passes through the gap 3.
When the cyclone separator is used, the cyclone is communicated with the ventilation pipe 19 of the cyclone separator, after wind flow of the cyclone separator enters the cyclone separator body 1 through the ventilation pipe 19, the wind flow moves to the other side of the stop block 2 due to the blocking effect of the stop block 2, and then acts on the fan blade 5 on one side, far away from the stop block 2, of the cylinder 4, and under the impact of the wind flow on the fan blade 5, the fan blade 5 drives the cylinder 4 and the rotating rod 14 to rotate. Because the hauling cable 17 is connected to the connecting block 16, the height position of the hauling cable 17 away from one end of the isolation plate 7 changes in the process of rotating the rotating rod 14, and then the hauling cable 17 is driven to lift or lower relative to the isolation plate 7, so that the isolation plate 7 deflects on a vertical plane. In the process, the wind flow impacts the fan blades 5, so that the speed of the wind flow is slowed down, and after the wind flows out of the cyclone cylinder body 1 through the ventilation holes on the isolation plate 7, the flow speed and the kinetic energy of the wind flow are greatly reduced, so that the disturbance to dust and air is reduced. In addition, because the fine powder is blocked by the isolation plate 7, the fine powder on the isolation plate 7 can only enter the material collecting box through the material guide holes 12, and because of the arrangement of the isolation cloth 11, the fine powder is prevented from entering the cyclone body 1 from the gap between the bottom of the isolation plate 7 and the material guide holes 12, and the occurrence of dust emission is further reduced.
Example 2 substantially as shown in fig. 3, a powder concentrator differs from the cyclone type in the prior art only in that: the cyclone in the embodiment 1 is used for replacing the cyclone in the prior art, and the air outlet end of the ventilating pipe 19 of the cyclone powder concentrator is communicated with the air inlet of the cyclone body 1.
The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (6)
1. A cyclone, characterized in that: comprises a cyclone body, an isolation assembly, a power assembly and a transmission assembly; the cyclone body is internally provided with a stop block;
the isolation assembly comprises flexible isolation cloth and an isolation plate for isolating the upper part and the lower part of the cyclone body, one end of the isolation plate is rotationally connected in the mounting groove, the other end of the isolation plate extends into the material collecting box, and two ends of the isolation cloth are respectively and fixedly connected to the material guide hole and the bottom of the isolation plate; the partition board is uniformly provided with ventilation holes;
the power assembly comprises a rotating rod and a cylindrical barrel fixedly connected to one end of the rotating rod, the cylindrical barrel is positioned above the isolation plate, fan blades are uniformly distributed on the cylindrical barrel, the fan blades positioned at the left side part of the cylindrical barrel are positioned under the stop block, and one end of the rotating rod is rotatably connected to the inner wall of the cyclone body;
the transmission assembly comprises a traction rope and a pulley rotatably connected in the cyclone cylinder body, the pulley is positioned above the cylindrical cylinder, the traction rope is lapped on the pulley, and two ends of the traction rope are respectively sleeved on the isolation plate and the non-center part of the cylindrical cylinder; the stop block is provided with a notch for passing the traction rope;
the middle part of the rotating rod is U-shaped, two cylindrical barrels are respectively positioned at two sides of the middle part of the rotating rod, two ends of the rotating rod are respectively connected to two opposite inner walls of the cyclone barrel in a rotating mode, and one end, far away from the isolation plate, of the traction rope is sleeved at the middle part of the rotating rod.
2. A cyclone according to claim 1, wherein: the U-shaped part of the rotating rod is rotatably sleeved with a sleeve, and the traction rope is fixedly connected to the sleeve.
3. A cyclone according to claim 2, wherein: the upper surface of division board is equipped with two bases, two rotate between the base and be connected with the pivot, the one end fixed connection that the cylinder was kept away from to the haulage rope is in the pivot.
4. A cyclone according to claim 3, wherein: the side and the bottom of the material collecting box are both provided with openings, the opening part of the side of the material collecting box is connected with the outer wall of the cyclone body, and the outer wall of the cyclone body is hinged with a bottom plate for opening and closing the bottom opening of the material collecting box.
5. A cyclone according to claim 4, wherein: one end of the isolation plate, which is far away from the material collecting box, is an arc surface.
6. A powder concentrator which is characterized in that: comprising a cyclone according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210714081.6A CN115253491B (en) | 2022-06-22 | 2022-06-22 | Cyclone and powder concentrator based on cyclone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210714081.6A CN115253491B (en) | 2022-06-22 | 2022-06-22 | Cyclone and powder concentrator based on cyclone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115253491A CN115253491A (en) | 2022-11-01 |
| CN115253491B true CN115253491B (en) | 2023-11-07 |
Family
ID=83762143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210714081.6A Active CN115253491B (en) | 2022-06-22 | 2022-06-22 | Cyclone and powder concentrator based on cyclone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115253491B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB330163A (en) * | 1929-07-05 | 1930-06-05 | Dorman Long And Company Ltd | Improvements in, or relating to, dust separators and collectors |
| GB1332724A (en) * | 1970-01-14 | 1973-10-03 | Forsberg R A | Air cleaners |
| CN108311384A (en) * | 2018-02-08 | 2018-07-24 | 遵义市聚源建材有限公司 | One kind being convenient for fines collection powder concentrator |
| CN209124170U (en) * | 2018-11-02 | 2019-07-19 | 上海天溢环境科技有限公司 | A kind of cyclone dust collector |
| CN111298532A (en) * | 2020-03-03 | 2020-06-19 | 南京昕知环保科技有限公司 | Prevent bag collector of raise dust |
| CN215610009U (en) * | 2021-06-11 | 2022-01-25 | 龙岩市中泰机械设备有限公司 | Dust collecting equipment for industrial production workshop |
-
2022
- 2022-06-22 CN CN202210714081.6A patent/CN115253491B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB330163A (en) * | 1929-07-05 | 1930-06-05 | Dorman Long And Company Ltd | Improvements in, or relating to, dust separators and collectors |
| GB1332724A (en) * | 1970-01-14 | 1973-10-03 | Forsberg R A | Air cleaners |
| CN108311384A (en) * | 2018-02-08 | 2018-07-24 | 遵义市聚源建材有限公司 | One kind being convenient for fines collection powder concentrator |
| CN209124170U (en) * | 2018-11-02 | 2019-07-19 | 上海天溢环境科技有限公司 | A kind of cyclone dust collector |
| CN111298532A (en) * | 2020-03-03 | 2020-06-19 | 南京昕知环保科技有限公司 | Prevent bag collector of raise dust |
| CN215610009U (en) * | 2021-06-11 | 2022-01-25 | 龙岩市中泰机械设备有限公司 | Dust collecting equipment for industrial production workshop |
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| Publication number | Publication date |
|---|---|
| CN115253491A (en) | 2022-11-01 |
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