CN111721082A - High-efficient type drum dryer - Google Patents
High-efficient type drum dryer Download PDFInfo
- Publication number
- CN111721082A CN111721082A CN202010605819.6A CN202010605819A CN111721082A CN 111721082 A CN111721082 A CN 111721082A CN 202010605819 A CN202010605819 A CN 202010605819A CN 111721082 A CN111721082 A CN 111721082A
- Authority
- CN
- China
- Prior art keywords
- baffle
- wall
- cylinder
- air
- side wall
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
- F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
- F26B11/0486—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum the elements being held stationary, e.g. internal scraper blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/02—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
- F26B11/04—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
- F26B11/0463—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall
- F26B11/0477—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis having internal elements, e.g. which are being moved or rotated by means other than the rotating drum wall for mixing, stirring or conveying the materials to be dried, e.g. mounted to the wall, rotating with the drum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/08—Parts thereof
- F26B25/12—Walls or sides; Doors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/14—Chambers, containers, receptacles of simple construction
- F26B25/16—Chambers, containers, receptacles of simple construction mainly closed, e.g. drum
Abstract
The invention discloses a high-efficiency drum dryer which comprises a base, a first baffle and a second baffle, wherein the first baffle and the second baffle are arranged on the base, a drum is rotatably connected between the first baffle and the second baffle, a driving part for driving the drum to rotate is arranged on the base, a plurality of baffles are fixedly connected on the inner wall of the drum, a discharge hole is formed in the side wall of the first baffle, a feed hole is formed in the side wall of the second baffle, an air inlet pipe communicated with the interior of the drum is arranged on the side wall of the first baffle, and a plurality of rubber air hoods are fixedly connected on the inner wall of the drum. According to the invention, the rubber air hood is continuously bulged through the air supply device, and the continuously bulged rubber air hood can bulge materials falling on the outer wall of the rubber air hood, so that the time and the quantity of the lifted materials are greatly increased, the time and the area of contact between the materials and hot air are increased, and on one hand, the drying efficiency can be improved; on the other hand, the heat energy utilization rate can be improved, and the electric energy consumption is saved.
Description
Technical Field
The invention relates to the technical field related to roller drying, in particular to a high-efficiency roller dryer.
Background
The drum dryer is common drying equipment in industrial production, utilizes the cylinder of continuous rotation to raise the material and fall down again, and rethread hot-blast stove is blown into hot-air and is weathered the material that rises.
The existing roller dryer transports materials to the top of the roller and falls down by means of dead weight through arranging a plurality of partition plates in the roller when the materials are lifted. The falling time of the materials is short, the contact time with hot air is short, the drying efficiency is low, the materials need to be lifted for many times, the drying time is long, meanwhile, the utilization rate of hot air heat energy is low, and the energy consumption is high. Accordingly, the present document proposes a high-efficiency drum dryer.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an efficient roller dryer.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a high-efficient type drum dryer, includes the base and installs first baffle and second baffle on the base, it is connected with the cylinder to rotate between first baffle and the second baffle, install driving roller pivoted driver part on the base, a plurality of baffles of fixedly connected with on the cylinder inner wall, the discharge gate has been seted up to the lateral wall of first baffle, the feed inlet has been seted up to the lateral wall of second baffle, install on the lateral wall of first baffle with the inside communicating intake pipe of cylinder, a plurality of rubber gas hoods of fixedly connected with on the inner wall of cylinder, a plurality of spouts have been seted up to the lateral wall of cylinder, install exhaust device in the to rubber gas hood in the spout.
Preferably, exhaust apparatus includes the slider of sealed sliding connection in the spout, just the slider passes through spring elastic connection on the lateral wall of spout, through the gas pocket intercommunication between spout and the rubber gas hood, the cylinder is embedded to be equipped with the inside communicating trachea of spout, it is connected with the impeller to rotate on the lateral wall of first baffle, just the impeller is located inside the cylinder, one of them blade of impeller is iron system, the slider adopts magnetic material to make.
Preferably, a filter cylinder is fixedly connected to the side wall of the first baffle, a hollow groove is formed in the side wall of the filter cylinder, a vibration spring is embedded in the hollow groove, and a spiral coil electrically connected with the vibration spring is embedded in the inner wall of the sliding groove.
The invention has the following beneficial effects:
1. the impeller with the iron blades is arranged in the roller, so that the impeller can be pushed to rotate when hot air is blown into the roller, the sliding blocks in the sliding grooves are attracted to move back and forth, air can be blown into the rubber air hood continuously, the rubber air hood is blown continuously, materials falling on the outer wall of the rubber air hood can be bounced by the rubber air hood which is blown continuously, the time and the number of the materials which are blown up are greatly increased, the time and the area of the materials which are in contact with the hot air are increased, and on one hand, the drying efficiency can be improved; on the other hand, the heat energy utilization rate can be improved, and the electric energy consumption is saved;
2. when the sliding block moves back and forth, hot air can be continuously pumped into the sliding groove, and after the sliding groove arranged around the roller is filled with the hot air, the roller can be insulated, so that the heat loss in the drying process is reduced, and the electric energy loss is further saved;
3. by arranging the filter cartridge, the lifted materials can pass through the filter cartridge when falling down, the efficiency and speed of the materials can be greatly delayed by the filter cartridge, the retention time of the materials in the air is prolonged, the contact time of hot air and the materials is further increased, and the drying efficiency is improved;
4. through setting up parts such as spring, helical coil shake, can constantly make the spring circular telegram that shakes at magnetic slider round trip movement in-process, can make the spring that shakes constantly flexible to arouse to strain a section of thick bamboo constantly to shake, can constantly bounce through the material of straining a section of thick bamboo, prolong the contact time of material and hot-air once more, guarantee the high efficiency of drying-machine.
Drawings
Fig. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
In the figure: the device comprises a base 1, a driving part 2, a roller 3, a partition plate 31, a first baffle 4, a discharge port 41, a second baffle 5, a feed port 51, an air inlet pipe 6, an impeller 7, a sliding chute 8, an air hole 81, a sliding block 9, a spring 10, an air pipe 11, a rubber air cover 12, a spiral coil 13, a filter cartridge 14, a hollow groove 141 and a vibrating spring 15.
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.
The first embodiment is as follows:
referring to fig. 1-2, a high-efficient type drum dryer, includes base 1 and first baffle 4 and second baffle 5 installed on base 1, rotates between first baffle 4 and the second baffle 5 and is connected with cylinder 3, installs driving drum 3 pivoted driver part 2 on the base 1, fixedly connected with a plurality of baffles 31 on the 3 inner walls of cylinder.
The driving member 2 includes a reduction motor, a gear train, and the like, and is mounted in the same manner as a conventional drum dryer and connected to the drum 3, and therefore, will not be described in detail.
The side wall of the first baffle plate 4 is provided with a discharge hole 41, the side wall of the second baffle plate 5 is provided with a feed inlet 51, the side wall of the first baffle plate 4 is provided with an air inlet pipe 6 communicated with the inside of the roller 3, the air inlet end of the air inlet pipe 6 is connected with a hot air source outside the device, and hot air can be continuously blown into the roller 3.
The inner wall of the roller 3 is fixedly connected with a plurality of rubber air hoods 12, the rubber air hoods 12 have good elasticity, each rubber air hood 12 is arranged between two adjacent partition plates 31, and materials can fall on the rubber air hoods 12.
A plurality of chutes 8 are formed in the side wall of the drum 3, and an exhaust device for exhausting air into the rubber air hood 12 is installed in the chute 8. Exhaust apparatus includes sealed sliding connection at the slider 9 in the spout 8, and slider 9 passes through spring 10 elastic connection on the lateral wall of spout 8, communicates through gas pocket 81 between spout 8 and the rubber gas hood 12, and the cylinder 3 is embedded to be equipped with the inside communicating trachea 11 of spout 8.
It is worth mentioning that by arranging a plurality of air pipes 11 communicated with the sliding chute 8, when the hot air is discharged from each air pipe 11, the hot air can cover the roller 3, the discharge area of the hot air is increased, and the drying efficiency is improved.
The side wall of the first baffle 4 is rotatably connected with an impeller 7, the impeller 7 is positioned in the roller 3, one blade of the impeller 7 is made of iron, and the sliding block 9 is made of magnetic materials.
This device is at the during operation, and the material is by feed inlet 51 entering cylinder 3 in, is blown into hot-air by intake pipe 6, and cylinder 3 lasts rotatoryly, and baffle 31 falls down by the dead weight with the material transportation to the top in the cylinder 3 again, can dry with the abundant contact of hot-air, and after the drying finishes, the material is discharged by discharge gate 41.
In the process, the air inlet pipe 6 can blow the impeller 7 to continuously rotate when exhausting air continuously, and iron blades on the impeller 7 are continuously close to and far away from the magnetic sliding blocks 9. When the iron blade is close to the magnetic slide block 9, the slide block 9 can be attracted to move along the direction of the iron blade, and when the iron blade is far away from the slide block 9, the spring 10 pulls the slide block 9 to move back and return. In this way, during the rotation of the impeller 7, the sliding blocks 9 can be moved back and forth from side to side in the corresponding sliding grooves 8.
When the slider 9 moves to the right as shown in fig. 1, the air in the chute 8 can be blown into the rubber air hood 12, and the rubber air hood 12 can be blown up, and simultaneously, the hot air can be sucked into the chute 8 from the air pipe 11. When the slide block 9 moves leftwards, the rubber air hood 12 can be recovered, and the hot air in the chute 8 can be discharged through the air pipe 11. When the rubber air hood 12 is continuously bulged, the materials among the partition plates 31 can be bounced, and the materials are also kicked, so that the time and the number of the kicked materials are greatly increased, the time and the area of the contact between the materials and hot air are increased, and on one hand, the drying efficiency can be improved; on the other hand, the heat energy utilization rate can be improved, and the electric energy consumption is saved.
In addition, constantly with hot-air suction spout 8 during slider 9 round trip movement, surround and set up behind the 8 suction hot-air of spout around cylinder 3, can keep warm cylinder 3, the calorific loss of the 3 stoving in-process of the cylinder that significantly reduces to can further save the power consumption.
Example two:
referring to fig. 3, a difference from the first embodiment is that a filter cartridge 14 is fixedly connected to a side wall of the first baffle 4, a hollow groove 141 is formed in the side wall of the filter cartridge 14, a vibration spring 15 is embedded in the hollow groove 141, and a spiral coil 13 electrically connected to the vibration spring 15 is embedded in an inner wall of the sliding groove 8.
In this embodiment, when the material is transported by baffle 31 to the interior top of cylinder 3 and falls again, will pass through a section of thick bamboo 14, the material is blockked when straining a section of thick bamboo 14 to slowly by straining a section of thick bamboo 14 and filter the back and fall again, so can further prolong the material after the raise the dwell time in the air, greatly increased the contact time of hot-air and material, improve drying efficiency.
In addition, in the process that the magnetic slide block 9 moves back and forth in the sliding groove 8, the magnetic slide block continuously enters and exits the spiral coil 13, the magnetic flux in the spiral coil 13 can be continuously changed, an induced current is continuously generated to electrify the vibration spring 15, the vibration spring 15 can be continuously electrified and deenergized, and the vibration spring 15 is also continuously stretched, so that the filter cartridge 14 is continuously shaken, the material passing through the filter cartridge 14 can be continuously bounced, the staying time of the material in the air is prolonged again, and the drying speed is further improved.
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 (3)
1. The utility model provides a high-efficient type drum dryer, includes base (1) and installs first baffle (4) and second baffle (5) on base (1), it is connected with cylinder (3) to rotate between first baffle (4) and second baffle (5), install driving roll (3) pivoted driver part (2) on base (1), fixedly connected with a plurality of baffles (31) on cylinder (3) inner wall, its characterized in that, discharge gate (41) have been seted up to the lateral wall of first baffle (4), feed inlet (51) have been seted up to the lateral wall of second baffle (5), install intake pipe (6) that communicate with cylinder (3) inside on the lateral wall of first baffle (4), fixedly connected with a plurality of rubber gas hood (12) on the inner wall of cylinder (3), a plurality of spouts (8) have been seted up to the lateral wall of cylinder (3), an exhaust device for exhausting air into the rubber air hood (12) is arranged in the chute (8).
2. The high-efficiency roller dryer according to claim 1, wherein the exhaust device comprises a sliding block (9) which is connected in a sliding way in the sliding groove (8) in a sealing manner, the sliding block (9) is elastically connected to the side wall of the sliding groove (8) through a spring (10), the sliding groove (8) is communicated with the rubber air hood (12) through an air hole (81), an air pipe (11) communicated with the inside of the sliding groove (8) is embedded in the roller (3), an impeller (7) is rotatably connected to the side wall of the first baffle (4), the impeller (7) is located inside the roller (3), one of blades of the impeller (7) is made of iron, and the sliding block (9) is made of magnetic materials.
3. The efficient roller dryer according to claim 1 or 2, wherein a filter cylinder (14) is fixedly connected to a side wall of the first baffle (4), a hollow groove (141) is formed in a side wall of the filter cylinder (14), a vibration spring (15) is embedded in the hollow groove (141), and a spiral coil (13) electrically connected with the vibration spring (15) is embedded in an inner wall of the sliding groove (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605819.6A CN111721082A (en) | 2020-06-29 | 2020-06-29 | High-efficient type drum dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010605819.6A CN111721082A (en) | 2020-06-29 | 2020-06-29 | High-efficient type drum dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111721082A true CN111721082A (en) | 2020-09-29 |
Family
ID=72570087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010605819.6A Pending CN111721082A (en) | 2020-06-29 | 2020-06-29 | High-efficient type drum dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111721082A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3040708A1 (en) * | 1980-10-29 | 1982-05-19 | Buckau-Walther AG, 4048 Grevenbroich | Drying drum with concentric tubes - has tubes extended beyond end wall and connected to filling spout |
| EP0110714A1 (en) * | 1982-12-02 | 1984-06-13 | Unilever Plc | Apparatus for mixing or granulation of particles |
| CN101144682A (en) * | 2007-10-09 | 2008-03-19 | 南京旋立重型机械有限公司 | Rotary drying machine |
| CN106091632A (en) * | 2016-06-02 | 2016-11-09 | 芜湖智久机器人有限公司 | A kind of Novel rotary drum type dehydrator |
| CN206930090U (en) * | 2017-04-25 | 2018-01-26 | 张家港市昌源氨纶制造有限公司 | One kind section hybrid heating device |
| CN107702505A (en) * | 2017-10-20 | 2018-02-16 | 遵义双河生物燃料科技有限公司 | A kind of roller drier |
| CN207662109U (en) * | 2017-11-03 | 2018-07-27 | 焦作市真节能环保设备科技有限公司 | Three-level drum-type drying adhesional wetting materiel machine |
| CN209512428U (en) * | 2018-12-08 | 2019-10-18 | 襄汾县鸿达集团水泥建材有限公司 | A kind of slag drying machine |
| CN110369284A (en) * | 2019-08-04 | 2019-10-25 | 陈云 | A kind of rice screening plant |
| CN210320950U (en) * | 2019-08-19 | 2020-04-14 | 重庆俋谊制动科技有限公司 | High-efficient drying-machine that stability is good |
-
2020
- 2020-06-29 CN CN202010605819.6A patent/CN111721082A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3040708A1 (en) * | 1980-10-29 | 1982-05-19 | Buckau-Walther AG, 4048 Grevenbroich | Drying drum with concentric tubes - has tubes extended beyond end wall and connected to filling spout |
| EP0110714A1 (en) * | 1982-12-02 | 1984-06-13 | Unilever Plc | Apparatus for mixing or granulation of particles |
| CN101144682A (en) * | 2007-10-09 | 2008-03-19 | 南京旋立重型机械有限公司 | Rotary drying machine |
| CN106091632A (en) * | 2016-06-02 | 2016-11-09 | 芜湖智久机器人有限公司 | A kind of Novel rotary drum type dehydrator |
| CN206930090U (en) * | 2017-04-25 | 2018-01-26 | 张家港市昌源氨纶制造有限公司 | One kind section hybrid heating device |
| CN107702505A (en) * | 2017-10-20 | 2018-02-16 | 遵义双河生物燃料科技有限公司 | A kind of roller drier |
| CN207662109U (en) * | 2017-11-03 | 2018-07-27 | 焦作市真节能环保设备科技有限公司 | Three-level drum-type drying adhesional wetting materiel machine |
| CN209512428U (en) * | 2018-12-08 | 2019-10-18 | 襄汾县鸿达集团水泥建材有限公司 | A kind of slag drying machine |
| CN110369284A (en) * | 2019-08-04 | 2019-10-25 | 陈云 | A kind of rice screening plant |
| CN210320950U (en) * | 2019-08-19 | 2020-04-14 | 重庆俋谊制动科技有限公司 | High-efficient drying-machine that stability is good |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108286882A (en) | A kind of energy-saving and environment-friendly foodstuff drying device | |
| CN207487367U (en) | A kind of pre-heated drying unit of grain processing | |
| CN112033106A (en) | Energy-saving drum-type stem of noble dendrobium quick drying device | |
| CN113251784A (en) | Feed pneumatic conveying system of fish feed production line | |
| CN208458452U (en) | Drying unit for fertilizer production | |
| CN111721082A (en) | High-efficient type drum dryer | |
| CN203534158U (en) | Energy-saving environment-friendly full-automatic electric heating rotary kiln | |
| CN108673824A (en) | A kind of injection molding machine charging (feeding) equipment of integral type | |
| CN202375004U (en) | Efficient food drying machine | |
| CN110044168B (en) | Internal air draft type grain dryer | |
| CN216080864U (en) | Drying device is used in flocculating agent production | |
| CN113788272B (en) | Feeding device for electric heating assembly based on electric control | |
| CN201609111U (en) | Heat-insulation tobacco shred storage cabinet | |
| CN205980705U (en) | Energy -conserving automatic control desiccator | |
| CN210773313U (en) | Feeding device of drying machine | |
| CN213363269U (en) | Energy-saving grain conveying special drying fan | |
| CN212894415U (en) | Intelligent sludge dehumidification mummification device | |
| CN208804993U (en) | A kind of energy-saving and environment-friendly foodstuff drying device | |
| CN208744595U (en) | A kind of spring shot-blasting machine | |
| CN208980555U (en) | A kind of sludge drying device of improvement | |
| CN112538658A (en) | Self-drying screw extruder for melt-blown non-woven fabric | |
| CN112293485A (en) | Grain drying and storing system | |
| CN219589377U (en) | Concentrate dryer for iron ore processing | |
| CN206959484U (en) | A kind of elastic force type high efficiency tea drying device | |
| CN201892389U (en) | Chain dryer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200929 |
|
| RJ01 | Rejection of invention patent application after publication |