CN210821088U - Dust collector for powder press - Google Patents
Dust collector for powder press Download PDFInfo
- Publication number
- CN210821088U CN210821088U CN201921409440.7U CN201921409440U CN210821088U CN 210821088 U CN210821088 U CN 210821088U CN 201921409440 U CN201921409440 U CN 201921409440U CN 210821088 U CN210821088 U CN 210821088U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- dust
- powder
- filter box
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a dust-removing device for a powder press, which relates to the technical field of powder cake production and solves the problem that the powder drifted out in the process of pressing the powder cake easily causes pollution to a lower die in the prior art, and the technical proposal is characterized in that the dust-removing device comprises two dust hoods, a connecting rod, dust-collecting pipes arranged above the two dust hoods, a connecting pipe with two ends respectively and fixedly connected with the two dust-collecting pipes, an exhaust pipe fixedly connected on the connecting pipe, a filter box fixedly connected at one end of the exhaust pipe, which is far away from the connecting pipe, and used for filtering the powder in the air, an outlet pipe fixedly connected on the filter box and used for sending out the filtered air, and a fan fixedly connected at one end of the outlet pipe, which is far away from the filter box, the powder drifted into the air is pumped into the filter box through the dust-collecting pipes and the dust hoods, after the air is filtered in the filter box, so that the powder is not easy to fall on the lower die and the lower die is not easy to be polluted.
Description
Technical Field
The utility model relates to a technical field of pressed powder production, more specifically the saying so, it relates to a dust collector for powder press.
Background
Beauty-conscious people all have, and most beauty-conscious women need make up before going out, and the problem of make-up removal easily appears after appearing, so just need make up this time, therefore most women all can carry a powder puff and pressed powder with one's hand and carry out timely make up.
At present, when the pressed powder is manufactured, a practical powder pressing machine is needed to press powder into the pressed powder with a regular shape, the powder pressing machine puts the powder into the lower die, then drives the pressing block to move downwards through the pressing rod, presses the pressing block into the lower die, and presses the powder in the lower die into a cake shape with regular characters.
In the actual process of pressing the pressed powder compact, when the pressing block is pressed into the lower die to press the powder compact, gas in the lower die leaks outwards from a gap between the pressing block and the lower die, and in the process of air leakage, part of powder is driven to float outwards, and finally falls into the lower die to pollute the lower die, so that the quality of the powder compact produced subsequently by the lower die is influenced.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a dust collector for dust press, it will waft the powder suction in the air to the rose box in the middle of through dust absorption pipe and suction hood, after with filtration in the rose box, clean air is discharged out for on the powder is difficult to fall the lower mould, thereby is difficult to cause the pollution to the lower mould.
In order to achieve the above purpose, the utility model provides a following technical scheme: a dust removal device for a powder press comprises two dust hoods arranged at two sides of one end, close to a pressing block, of a pressing rod, a connecting rod with one end fixedly connected to the dust hoods and the other end fixedly connected to the pressing rod, dust suction pipes arranged above the two dust hoods and respectively communicated with the two dust hoods, a connecting pipe with two ends respectively and fixedly connected with the two dust suction pipes, an exhaust pipe fixedly connected to the connecting pipe, a filter box fixedly connected to one end, far away from the connecting pipe, of the exhaust pipe and used for filtering out powder in air, an air outlet pipe fixedly connected to the filter box and used for sending out filtered air, and a fan fixedly connected to one end, far away from the filter box, of the air outlet pipe; the dust suction pipe is a hose.
Through adopting above-mentioned technical scheme, the depression bar drives the briquetting downstream and carries out the in the middle of the process of pressing the cake, and the suction hood follows the depression bar downstream together, when the briquetting is impressed and is carried out the cake in the lower mould, and the powder that floats out enters into the rose box in the middle of through suction hood and dust absorption pipe under the effect of fan, through the filtration of rose box, filters out the powder in the middle of the air for the powder is difficult to fall on the lower mould, thereby is difficult to cause the pollution to the lower mould.
The utility model discloses further set up to: the dust hood comprises a top plate arranged in an arc shape and two side plates fixedly connected to one side of the dust hood close to the compression bar and one side of the dust hood far away from the compression bar;
the axis of the arc-shaped top plate is positioned on one side of the top plate close to the pressure rod.
Through adopting above-mentioned technical scheme, be the roof that the arc set up for two suction hoods are around the briquetting setting at the top of briquetting, thereby make the briquetting float the powder in the air in the middle of the process of pressing the cake in the middle of can be more abundant by in the middle of the suction hood.
The utility model discloses further set up to: roof top is provided with communicating pipe with dust absorption pipe fixed connection, communicating pipe bottom fixedly connected with a plurality of with roof top fixed connection's standpipe, the standpipe evenly arranges along the pitch arc direction of roof.
Through adopting above-mentioned technical scheme, through setting up a plurality of standpipes for suction everywhere of suction hood bottom is more even, thereby can be more abundant with showy powder suction in the middle of the suction hood.
The utility model discloses further set up to: a filter screen is arranged in the filter box, the exhaust pipe is located below the filter screen, and the air outlet pipe is located above the filter screen.
Through adopting above-mentioned technical scheme, the exhaust tube sends into the air that contains the powder in the middle of the rose box, and the air is in the middle of the process of passing the filter screen, and the filter screen filters out the powder in the middle of the air, and the air after being filtered is then discharged in the middle of the rose box through the outlet duct.
The utility model discloses further set up to: the filter screen can shake along vertical direction in the middle of the rose box, is provided with the vibrations mechanism that is used for shaking the filter screen in the rose box.
Through adopting above-mentioned technical scheme, vibrate the filter screen through vibrations mechanism for the powder of adhesion on the filter screen is shaken from being fallen on the filter screen, thereby prevents that the powder of adhesion from influencing the filter effect of filter screen.
The utility model discloses further set up to: the vibration mechanism comprises a transverse plate fixedly connected to the top of the filter screen, a vibration rod fixedly connected to the top of the transverse plate and penetrating through the top of the filter box along the vertical direction, a limiting plate fixedly connected to the vibration rod and located in the filter box, a spring sleeved on the vibration rod and located above the limiting plate, and power assemblies which correspond to the two vibration rods one by one and are used for driving the vibration rod to vibrate up and down;
spring one end fixed connection is on the limiting plate, and other end fixed connection is on the rose box.
Through adopting above-mentioned technical scheme, power component promotes vibrations pole and shakes from top to bottom, and the vibrations pole drives the filter screen and shakes from top to bottom in the middle of the process of shaking from top to bottom to shake the powder of the adhesion on the filter screen, thereby prevent that the powder of adhesion from influencing the filter effect of filter screen.
The utility model discloses further set up to: the power assembly comprises two support blocks fixedly connected to the top of the filtering box and located on two sides of the vibration rod, rotating shafts connected to the two support blocks respectively at two ends, cams fixedly connected to the rotating shafts and used for driving the rotating shafts to rotate, wherein the peripheries of the cams are in mutual contact with the top of the vibration rod, and the cams are fixedly connected to the support blocks.
Through adopting above-mentioned technical scheme, power motor drives the pivot and rotates, and the effect of the normal running fit spring of cam in the pivot drives the vibrations pole and shakes from top to bottom.
The utility model discloses further set up to: and an air seal machine for sending out filtered powder is arranged at the bottom of the filter box.
The utility model discloses further set up to: the air seal machine comprises a cylindrical shell fixedly connected to the bottom of the filter box and horizontally arranged in the axis direction, a discharge pipe fixedly connected to the bottom of the shell, a rotating rod with two ends respectively rotatably connected to two ends of the shell and coaxial with the shell, a plurality of shifting plates fixedly connected to the outer side of the rotating rod, and a discharge motor fixedly connected to the outer side of the shell and used for driving the rotating rod to rotate;
the pivot is located the casing, and the switch plate deviates from pivot one side and the inboard mutual contact of casing, and the switch plate is close to the position at pivot both ends and the inner wall mutual contact of casing.
Through adopting above-mentioned technical scheme, when the contained angle of two switch-plates was up, the powder fell into between two switch-plates, and the switch-plate continues to rotate, and when contained angle down between two switch-plates, the powder was seen off from the discharging pipe in the middle of, and the rose box is not direct to communicate each other with the discharging pipe to can not make the air leak from the discharging pipe when making the ejection of compact.
To sum up, the utility model discloses compare and have following beneficial effect in prior art:
1. the utility model discloses a set up suction hood, dust absorption pipe, rose box and fan, the depression bar drives the briquetting downstream and carries out the process of pressing the cake, the suction hood follows the depression bar and moves downstream together, when the briquetting is impressed and is carried out the cake in the lower mould, the powder that floats out enters into the rose box through suction hood and dust absorption pipe under the effect of fan, through the filtration of rose box, filter the powder in the middle of the air, make the powder be difficult to fall on the lower mould, thereby be difficult to cause the pollution to the lower mould;
2. the utility model discloses a set up the airlock, when the contained angle of two switch-plates was up, before the powder fell into two switch-plates, the switch-plates continued to rotate, when contained angle down between two switch-plates, the powder was seen off in the middle of the discharging pipe, and the rose box is not direct to communicate each other with the discharging pipe to can not make the air leak from the discharging pipe when making the ejection of compact.
Drawings
FIG. 1 is an isometric view of the complete structure of the embodiment;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic view of an embodiment of a filter screen;
FIG. 4 is a cross-sectional view of a filtration tank of an embodiment;
FIG. 5 is an enlarged view of the portion B of FIG. 1;
FIG. 6 is an enlarged view of section C of FIG. 1;
fig. 7 is a cross-sectional view of an embodiment of an airlock.
In the figure: 1. a dust hood; 11. a top plate; 12. a side plate; 2. a connecting rod; 3. a dust collection pipe; 31. a communicating pipe; 32. a vertical tube; 4. a filter box; 41. an air exhaust pipe; 411. a connecting pipe; 42. an air outlet pipe; 5. a fan; 6. a wind seal machine; 61. a housing; 62. rotating the rod; 63. a kick-out plate; 64. a discharge pipe; 65. a discharging motor; 7. a filter screen; 8. a vibration mechanism; 81. a transverse plate; 82. a limiting plate; 83. a vibration rod; 84. a spring; 85. a power assembly; 851. a support block; 852. a rotating shaft; 853. a cam; 854. a power motor.
Detailed Description
Example (b): a dust removing device for a powder press is disclosed, and is shown in figure 1, and comprises two dust hoods 1 arranged at two sides of one end, close to a pressing block, of a pressing rod, a connecting rod 2 with one end fixedly connected to the dust hoods 1 and the other end fixedly connected to the pressing rod, two dust pipes 3 arranged above the two dust hoods 1, a connecting pipe 411 with two ends respectively and fixedly connected with the two dust pipes 3, an exhaust pipe 41 fixedly connected to the connecting pipe 411, a filter box 4 fixedly connected to one end, away from the connecting pipe 411, of the exhaust pipe 41, an air seal 6 fixedly connected to the bottom of the filter box 4, an air outlet pipe 42 fixedly connected to the filter box 4 and used for sending out filtered air, and a fan 5 fixedly connected to one end, away from the filter box 4, of the air; the dust suction pipe 3 is a hose; the two dust absorption pipes 3 are respectively and fixedly connected with the tops of the two dust absorption covers 1, and the two dust absorption pipes 3 are respectively communicated with the two dust absorption covers 1. The filter box 4 is used for filtering out powder in the air, and the air seal 6 is used for sending out the filtered powder from the filter box 4.
When the depression bar drove the briquetting downstream, suction hood 1 followed the briquetting and moves down together, and the briquetting drifts into the powder in the air when carrying out the briquetting, under fan 5's effect, powder and air are in the middle of entering filter box 4 through suction hood 1, dust absorption pipe 3, connecting pipe 411 and exhaust tube 41 together, and filter box 4 filters out the powder from the air and sends out through airlock 6, and the air after the filtration is sent out through outlet duct 42 and fan 5.
Referring to fig. 1 and 2, the dust hood 1 includes a top plate 11 arranged in an arc shape and two side plates 12 fixedly connected to one side of the dust hood 1 close to the compression bar and one side far away from the compression bar; the axis of the arc-shaped top plate 11 is positioned on one side of the top plate 11 close to the compression rod. A communicating pipe 31 fixedly connected with the dust suction pipe 3 is arranged above the top plate 11, the communicating pipe 31 is arranged in an arc shape, and the arc axis of the communicating pipe 31 is positioned at one side of the communicating pipe 31 close to the pressure rod; the bottom of the communicating pipe 31 is fixedly connected with a plurality of vertical pipes 32 fixedly connected with the top of the top plate 11, and the vertical pipes 32 are uniformly arranged along the arc direction of the top plate 11. The top plate 11 is formed in an arc shape so that the two dust hoods 1 are disposed around the top of the compact, thereby enabling the powder floating in the air to be more sufficiently sucked into the dust hoods 1.
Referring to fig. 3 and 4, a filter screen 7 is arranged in the filter box 4, the periphery of the filter screen 7 is in contact with the inner wall of the filter box 4, the filter screen 7 can vibrate in the filter box 4 along the vertical direction, and a vibration mechanism 8 for vibrating the filter screen 7 is arranged in the filter box 4. The vibrating mechanism 8 comprises a transverse plate 81 fixedly connected to the top of the filter screen 7, a vibrating rod 83 fixedly connected to the top of the transverse plate 81 and penetrating through the top of the filter box 4 along the vertical direction, a limiting plate 82 fixedly connected to the vibrating rod 83 and located in the filter box 4, a spring 84 sleeved on the vibrating rod 83 and located above the limiting plate 82, and power assemblies 85 which correspond to the two vibrating rods 83 one by one and are used for driving the vibrating rod 83 to vibrate up and down; one end of the spring 84 is fixedly connected to the limiting plate 82, and the other end is fixedly connected to the filter box 4.
Referring to fig. 5, the power assembly 85 includes two supporting blocks 851 fixedly connected to the top of the filter tank 4 and located at two sides of the vibration rod 83, a rotating shaft 852 with two ends rotatably connected to the two supporting blocks 851, a cam 853 fixedly connected to the rotating shaft 852, and a power motor 854 fixedly connected to the supporting blocks 851 for driving the rotating shaft 852 to rotate; the axis direction of the rotating shaft 852 is horizontally arranged and the rotating shaft 852 is positioned above the vibration rod 83, and the periphery of the cam 853 is in contact with the top of the vibration rod 83; an output shaft of the power motor 854 is coaxial with the rotating shaft 852 and is fixedly connected to one end of the rotating shaft 852.
The power motor 854 drives the cam 853 to rotate through the rotating shaft 852, the cam 853 can drive the vibration rod 83 to vibrate up and down in the rotating process in cooperation with the spring 84, and the vibration rod 83 vibrates up and down to drive the filter screen 7 to vibrate up and down, so that the powder on the filter screen 7 falls off from the filter screen 7.
Referring to fig. 6 and 7, the air seal machinery 6 includes a cylindrical casing 61 fixedly connected to the bottom of the filter tank 4 and horizontally arranged in the axial direction, a discharge pipe 64 fixedly connected to the bottom of the casing 61, a rotating rod 62 having two ends respectively rotatably connected to two ends of the casing 61 and coaxial with the casing 61, a plurality of material-shifting plates 63 fixedly connected to the outer side of the rotating rod 62, and a discharge motor 65 fixedly connected to the outer side of the casing 61 and used for driving the rotating rod 62 to rotate; the rotating shaft 852 is located in the housing 61, one side of the material poking plate 63, which is far away from the rotating shaft 852, is in contact with the inner side of the housing 61, and the positions of the material poking plates 63, which are close to the two ends of the rotating shaft 852, are in contact with the inner wall of the housing 61. The air seal 6 is capable of sending powder out of the filter box 4 and so that air in the filter box 4 does not leak from the air seal 6.
The dust removal device for the powder pressing machine has the following working principle when in use: when the depression bar drove the briquetting downstream, suction hood 1 followed the briquetting and moves down together, and the briquetting drifts into the powder in the air when carrying out the briquetting, under fan 5's effect, powder and air are in the middle of entering filter box 4 through suction hood 1, dust absorption pipe 3, connecting pipe 411 and exhaust tube 41 together, and filter box 4 filters out the powder from the air and sends out through airlock 6, and the air after the filtration is sent out through outlet duct 42 and fan 5.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a dust collector for dust press which characterized in that: the dust collection device comprises two dust collection covers (1) arranged at two sides of one end, close to a pressing block, of a pressing rod, a connecting rod (2) with one end fixedly connected to the two dust collection covers (1) and the other end fixedly connected to the pressing rod, dust collection pipes (3) arranged above the two dust collection covers (1) and respectively communicated with the two dust collection covers (1), a connecting pipe (411) with two ends respectively fixedly connected with the two dust collection pipes (3), an exhaust pipe (41) fixedly connected to the connecting pipe (411), a filter box (4) fixedly connected to one end, far away from the connecting pipe (411), of the exhaust pipe (41) and used for filtering out powder in air, an air outlet pipe (42) fixedly connected to the filter box (4) and used for sending out filtered air, and a fan (5) fixedly connected to one end, far away from the filter box (4), of the; the dust suction pipe (3) is a hose.
2. The dust removing device for the powder compactor according to claim 1, characterized in that: the dust hood (1) comprises a top plate (11) arranged in an arc shape and two side plates (12) fixedly connected to one side, close to the compression bar, of the dust hood (1) and one side, far away from the compression bar, of the dust hood;
the axis of the arc-shaped top plate (11) is positioned on one side of the top plate (11) close to the pressure rod.
3. The dust removing device for the powder compactor according to claim 2, characterized in that: roof (11) top is provided with communicating pipe (31) with dust absorption pipe (3) fixed connection, communicating pipe (31) bottom fixed connection have a plurality of with roof (11) top fixed connection's standpipe (32), standpipe (32) are evenly arranged along the pitch arc direction of roof (11).
4. The dust removing device for the powder compactor according to claim 1, characterized in that: a filter screen (7) is arranged in the middle of the filter box (4), the air exhaust pipe (41) is positioned below the filter screen (7), and the air outlet pipe (42) is positioned above the filter screen (7).
5. The dust removing device for the powder compactor according to claim 4, characterized in that: the filter screen (7) can vibrate in the middle of the filter box (4) along the vertical direction, and a vibration mechanism (8) used for vibrating the filter screen (7) is arranged in the filter box (4).
6. The dust removing device for the powder compactor according to claim 5, characterized in that: the vibration mechanism (8) comprises a transverse plate (81) fixedly connected to the top of the filter screen (7), a vibration rod (83) fixedly connected to the top of the transverse plate (81) and penetrating through the top of the filter box (4) along the vertical direction, a limiting plate (82) fixedly connected to the vibration rod (83) and located in the filter box (4), a spring (84) sleeved on the vibration rod (83) and located above the limiting plate (82), and power assemblies (85) which correspond to the two vibration rods (83) one by one and are used for driving the vibration rod (83) to vibrate up and down;
one end of the spring (84) is fixedly connected to the limiting plate (82), and the other end of the spring is fixedly connected to the filter box (4).
7. The dust removing device for the powder compactor according to claim 6, characterized in that: power component (85) including fixed connection at rose box (4) top and be located two supporting block (851) of vibrations pole (83) both sides, both ends rotate pivot (852) of connection on two supporting block (851) respectively, fixed connection on pivot (852) and periphery and vibrations pole (83) top mutual contact's cam (853) and fixed connection are used for driving pivot (852) to carry out pivoted power motor (854) on supporting block (851).
8. The dust removing device for the powder compactor according to claim 1, characterized in that: and an air seal machine (6) for sending out the filtered powder is arranged at the bottom of the filter box (4).
9. The dust removing device for the powder compactor according to claim 8, characterized in that: the air seal machinery (6) comprises a cylindrical shell (61) which is fixedly connected to the bottom of the filter box (4) and is horizontally arranged in the axis direction, a discharge pipe (64) which is fixedly connected to the bottom of the shell (61), a rotating rod (62) of which two ends are respectively rotatably connected with two ends of the shell (61) and coaxial with the shell (61), a plurality of shifting plates (63) which are fixedly connected to the outer side of the rotating rod (62), and a discharge motor (65) which is fixedly connected to the outer side of the shell (61) and is used for driving the rotating rod (62) to rotate;
the rotating shaft (852) is positioned in the shell (61), one side, deviating from the rotating shaft (852), of the material shifting plate (63) is in mutual contact with the inner side of the shell (61), and the positions, close to the two ends of the rotating shaft (852), of the material shifting plate (63) are in mutual contact with the inner wall of the shell (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921409440.7U CN210821088U (en) | 2019-08-27 | 2019-08-27 | Dust collector for powder press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921409440.7U CN210821088U (en) | 2019-08-27 | 2019-08-27 | Dust collector for powder press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210821088U true CN210821088U (en) | 2020-06-23 |
Family
ID=71253782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921409440.7U Expired - Fee Related CN210821088U (en) | 2019-08-27 | 2019-08-27 | Dust collector for powder press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210821088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659612A (en) * | 2020-12-22 | 2021-04-16 | 河北北方学院 | Vacuum hot press for graphene-copper laminated composite material and use method thereof |
-
2019
- 2019-08-27 CN CN201921409440.7U patent/CN210821088U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659612A (en) * | 2020-12-22 | 2021-04-16 | 河北北方学院 | Vacuum hot press for graphene-copper laminated composite material and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210229417U (en) | Production display dust collecting equipment for frame | |
| CN211133345U (en) | Centralized industrial oil smoke purifies uses clarifier | |
| CN210821088U (en) | Dust collector for powder press | |
| CN110761924A (en) | Air filter cleaning machine | |
| CN210523181U (en) | Cleaning device for multicolor powder pressing machine | |
| CN211245888U (en) | Movable industrial dust collector | |
| CN116966701A (en) | Efficient cleaning and collecting system for industrial fly ash dust | |
| CN201969448U (en) | Dust remover with cleaning device | |
| CN207605490U (en) | A kind of Generator Set air inlet purification device | |
| CN213761018U (en) | Waste gas treatment device convenient for ash removal | |
| CN214972636U (en) | Oblique-insertion type filter cylinder dust removal device for straw incineration | |
| CN212819162U (en) | Flue gas desulfurization and denitrification treatment system | |
| CN214019841U (en) | Desulfurization dust collecting equipment | |
| CN113209745A (en) | Obliquely-inserted filter cylinder dust removal device for straw incineration and dust removal method thereof | |
| CN213790523U (en) | Remove formaldehyde air purification equipment | |
| CN217857188U (en) | Special coke preparation process dust collector of lithium ion battery | |
| CN218306888U (en) | Filter cylinder of dust remover capable of moving synchronously | |
| CN217340605U (en) | Dust collecting and filtering equipment convenient for replacing filter membrane | |
| CN211536929U (en) | Dust removing equipment | |
| CN218717379U (en) | Air compressor machine with blowdown function | |
| CN220736781U (en) | Integral pulse filter cartridge dust remover | |
| CN211011423U (en) | Organic waste gas treatment device moulds plastics | |
| CN116920553B (en) | Flue gas dust-settling treatment device for coal-fired industrial furnace | |
| CN108404577A (en) | Rural garbage processing fume and dust removing device for use | |
| CN211612827U (en) | Coal crushing device for thermal power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200623 Termination date: 20210827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |