CN113349402A - Loosening device for airflow cut-tobacco drier - Google Patents
Loosening device for airflow cut-tobacco drier Download PDFInfo
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- CN113349402A CN113349402A CN202110841134.6A CN202110841134A CN113349402A CN 113349402 A CN113349402 A CN 113349402A CN 202110841134 A CN202110841134 A CN 202110841134A CN 113349402 A CN113349402 A CN 113349402A
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- loosening
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- loosening roller
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- 238000007789 sealing Methods 0.000 claims description 9
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 abstract description 7
- 241000208125 Nicotiana Species 0.000 description 22
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 22
- 230000001133 acceleration Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/06—Loosening tobacco leaves or cut tobacco
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- Manufacture Of Tobacco Products (AREA)
Abstract
本发明提供了一种气流烘丝机用松散装置，其包括壳体、松散辊、驱动机构，所述壳体的左端设置有第一端盖，其右端设置有第二端盖，其上端设置有进料口，其下端设有下料口；松散辊的第二端与第二端盖转动连接，松散辊的第一端穿过第一端盖与驱动机构相连，松散辊与第一端盖转动连接；驱动机构用于驱动松散辊旋转；松散辊的松散段的周向上均匀分布有四个耙钉组，耙钉组中的各耙钉均匀分布在松散段的轴向上，耙钉与松散段垂直相连；在由第一端至第二端的方向上，所述耙钉组中各耙钉的长度先逐渐变长而后逐渐变短，位于所述松散段的中部位置的耙钉的长度最长。本发明能够较好地避免叶丝出现间歇下落现象，保证了下料口的出料较为均匀连续。
The invention provides a loosening device for an air-flow wire dryer, which comprises a casing, a loosening roller and a driving mechanism. The left end of the casing is provided with a first end cover, the right end is provided with a second end cover, and the upper end is provided with There is a feeding port, and its lower end is provided with a feeding port; the second end of the loosening roller is rotatably connected with the second end cover, the first end of the loosening roller is connected with the driving mechanism through the first end cover, and the loosening roller is connected with the first end The cover is connected by rotation; the driving mechanism is used to drive the loosening roller to rotate; four rake nail groups are evenly distributed in the circumferential direction of the loosening section of the loosening roller. It is vertically connected with the loose section; in the direction from the first end to the second end, the length of each rake nail in the rake nail group gradually becomes longer and then gradually shortened, and the length of the rake nail located in the middle of the loose section is longest length. The invention can better avoid the phenomenon of intermittent falling of the leaf silk, and ensures that the discharging of the discharging port is relatively uniform and continuous.
Description
Technical Field
The invention belongs to the technical field of tobacco technology equipment, and particularly relates to a loosening device for an airflow cut-tobacco drier.
Background
The pneumatic tobacco drier is one of the important equipment in tobacco-making line and its feeding pneumatic lock consists of several flap gates, stainless steel scraper and casing. The feeding air lock is usually driven by chain transmission, and the cut tobacco is fed under the rotating action of a plurality of flap doors after entering the feeding air lock, so that time intervals exist between two adjacent blanking, and the cut tobacco is not continuous when entering a material pipeline through a loosening device of the airflow cut tobacco dryer. Therefore, how to design the loosening device so that the cut tobacco is continuous after passing through the loosening device becomes a technical problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a loosening device for an airflow cut-tobacco drier, which solves the technical problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
a loosening device for an airflow cut-tobacco drier comprises a shell, a loosening roller and a driving mechanism, wherein a first end cover is arranged at the left end of the shell, and a second end cover is arranged at the right end of the shell; the upper end of the shell is provided with a feeding hole, and the lower end of the shell is provided with a feed opening; the second end of the loosening roller is rotatably connected with the second end cover, the first end of the loosening roller penetrates through the first end cover, and the loosening roller is rotatably connected with the first end cover; the driving mechanism is connected with the first end and is used for driving the loosening roller to rotate; the loosening section of the loosening roller is positioned in the shell, four rake nail groups are uniformly distributed on the circumference of the loosening section, all rake nails in the rake nail groups are uniformly distributed on the axial direction of the loosening section, and the rake nails are vertically connected with the loosening section; in the direction from the first end to the second end, the length of each rake nail in the rake nail group is gradually lengthened and then gradually shortened, and the length of the rake nail at the middle position of the loose section is longest.
Preferably, each of the rake nails in the rake nail set is arranged in a straight line.
Preferably, the rake nails of two adjacent rake nail groups are arranged in a staggered manner, and the rake nails of two opposite rake nail groups are arranged oppositely.
Preferably, each of the rake nails in the rake nail group is distributed in a spiral shape.
Preferably, the difference between the lengths of two adjacent braks in the brak group is the same.
Preferably, the loosening roller is rotatably connected with the first end cover and the second end cover through bearings.
Preferably, sealing means are provided between the loosening roller and the first and second end caps.
Preferably, the driving mechanism comprises a motor, a belt pulley and a triangular belt, the motor is arranged on the outer wall of the shell, the belt pulley is arranged on the first end, and an output shaft of the motor is connected with the belt pulley through the triangular belt.
Preferably, the driving mechanism further comprises a controller, a frequency converter provided on the motor, a sensor for detecting the rotational speed of the loosening roller, the sensor being provided on the first end; the sensor and the frequency converter are respectively and electrically connected with the controller, and the frequency converter is electrically connected with the motor.
Preferably, the inner wall surface of the shell is provided with a teflon non-stick coating.
The invention has the beneficial effects that:
when the loosening device for the airflow cut-tobacco drier is used, the falling form of the cut tobacco passing through the rotating loosening roller is changed through the rake nails with different lengths in the four rake nail groups arranged on the loosening roller, so that the cut tobacco is changed from the linear intermittent falling into the irregular V-shaped continuous connection falling into the turbulent flow pipe of the airflow cut-tobacco drier in the prior art, the cut tobacco can be better ensured to exist on any horizontal line, the intermittent falling phenomenon of the cut tobacco is better avoided, and the discharging of a discharging opening is more uniform and continuous.
Drawings
In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and the embodiments of the present invention will be further described in detail with reference to the drawings, wherein
FIG. 1 is a schematic illustration of a loosening apparatus for an air dryer according to an embodiment of the present invention in use;
FIG. 2 is another schematic view of a loosening apparatus for an air dryer provided in accordance with an embodiment of the present invention in use;
FIG. 3 is a schematic view of a loosening apparatus for an air dryer according to an embodiment of the present invention;
FIG. 4 is a schematic view of a loosening roller provided in accordance with an embodiment of the present invention;
FIG. 5 is a side view of a loosening apparatus for an air dryer according to an embodiment of the present invention;
FIG. 6 is a schematic view of a turning apparatus in a feed airlock provided by an embodiment of the present invention;
fig. 7 is a schematic view of the connection between the scraper and the flap door according to the embodiment of the present invention.
In the drawings, the reference numbers:
11. feeding airlock 12, connecting flange 13, flap gate 14 and scraper
15. Connecting bolt 16, waist-shaped hole 21, shell 22 and feed opening
23. A first end cover 31, a loosening roller 32, a rake nail 33, a loosening section 41 and a motor
42. V belt 43, belt pulley 51, bearing 52, bearing seat 61 and sealing device
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description will be provided with reference to specific embodiments.
As shown in fig. 1 to 5, an embodiment of the present invention provides a loosening device for an air-flow cut-tobacco drier, which includes a housing 21, a loosening roller 31, and a driving mechanism, wherein a first end cover 23 is disposed at a left end of the housing 21, and a second end cover is disposed at a right end of the housing; the upper end of the shell is provided with a feed inlet, and the lower end of the shell is provided with a feed outlet 22; the second end of the loosening roller 31 is rotatably connected with the second end cover, the first end of the loosening roller 31 penetrates through the first end cover, and the loosening roller is rotatably connected with the first end cover; the driving mechanism is connected with the first end and is used for driving the loosening roller to rotate; the loosening section 33 of the loosening roller 31 is positioned in the shell, four rake nail groups are uniformly distributed on the circumference of the loosening section, all the rake nails in the rake nail groups are uniformly distributed on the axial direction of the loosening section 33, and the rake nails 32 are vertically connected with the loosening section; in the direction from the first end to the second end, the length of each rake nail 32 in the rake nail group is gradually longer and then gradually shorter, and the length of the rake nail at the middle position of the loose section is the longest.
When the loosening device for the airflow cut-tobacco drier is used, the falling form of the cut tobacco passing through the rotating loosening roller is changed through the rake nails 32 with different lengths in the four rake nail groups arranged on the loosening roller, so that the cut tobacco is changed from the continuous falling in a straight line shape in the prior art into the continuous falling in an irregular V-shaped continuous connection manner and enters the turbulent flow pipe of the airflow cut-tobacco drier, the cut tobacco can be better ensured to exist on any horizontal line, the intermittent falling phenomenon of the cut tobacco is better avoided, and the discharging at the discharging port is more uniform and continuous.
In an embodiment of the present invention, each of the rake nails 32 in the rake nail set is arranged in a straight line.
Specifically, the rake nails 32 in two adjacent rake nail groups are staggered, and the rake nails in two opposite rake nail groups are oppositely arranged, so that the tobacco leaves can be loosened more uniformly.
In another embodiment of the present invention, as shown in fig. 4 and 5, each of the rake nails 32 in the rake nail set is spirally distributed.
Preferably, the difference between the lengths of two adjacent braks in the brak group is the same.
Specifically, the loosening roller 31 is rotatably connected with the first end cover and the second end cover through a bearing 51, so that the rotatable connection between the loosening roller and the first end cover is conveniently realized. It is understood that the bearing housing 52 may be disposed at the roller through holes of the first and second end caps, and the bearing may be disposed on the bearing housing 52.
In order to make the sealing between the loosening roller 31 and the first and second end caps good, a sealing device 61 is provided between the loosening roller and the first end cap. It can be understood that the sealing device 61 may use teflon packing as sealing packing, and the sealing between the first end cover, the second end cover and the loosening roller is realized through a compression mode.
Specifically, the driving mechanism includes a motor 41, a belt pulley 43, and a triangular belt 42, the motor is disposed on the outer wall of the housing, the belt pulley 43 is disposed on the first end, and an output shaft of the motor is connected to the belt pulley 43 through the triangular belt. By adopting the scheme, the driving of the loosening roller can be realized through the motor.
Further, the driving mechanism further comprises a controller, a frequency converter arranged on the motor 41, a sensor for detecting the rotational speed of the loosening roller, the sensor being arranged on the first end; the sensor and the frequency converter are respectively and electrically connected with the controller, and the frequency converter is electrically connected with the motor. Adopt this scheme, detect the rotational speed of loose roller through the sensor, and later give the controller with this rotational speed signal transmission, the controller realizes the adjustment to the motor speed through controlling the converter to realize the controllable of the rotational speed of loose roller, and then make ejection of compact cut tobacco comparatively even.
Specifically, the inner wall surface of the shell 21 is provided with a teflon non-stick coating, so that the shell is long in service life, low in maintenance cost, easy to operate and easy to clean. The housing 21 and the loosening roller 31 may be made of stainless steel material, and the surface of the loosening roller may also be provided with a non-stick coating.
In one specific embodiment, the centrifugal force defines: when the transmission is coaxial, the angular speed is the same, the period is the same, the linear speed is in direct proportion to the radius, and the centrifugal acceleration is in inverse proportion to the radius. Therefore, the linear speed of each rake nail can be changed by designing the length of the rake nails 32 of the loosening roller, so that the broken tobacco leaves falling with high speed have different linear speeds and fall in a curved shape, and the tobacco leaves exist at any position on a horizontal line when falling, so that the discharging is more continuous and uniform.
The following is a measurement taken on site with respect to the SH93 air dryer. The feeding air lock is driven by chain transmission, the rotating speed is 41r/min, as shown in fig. 6 and 7, the scraper 14 is a sealing device arranged on the air lock inner flap door 13, the position of the connecting bolt 15 in the kidney-shaped hole 16 can be adjusted to adjust the gap amount between the scraper and the inner wall of the air lock shell, and the linear speed of the scraper 14 is 1.72 m/s; after entering the feeding airlock, the cut tobacco is fed one by one under the rotating action of the eight flap doors 13, and the interval time of each cut tobacco blanking is 0.183 s. The distance a between the scraper 14 of the feed airlock and the rake on the loosening roller was 450mm, and the falling time of the cut tobacco was 0.315s according to the formula h of free fall 1/2gt2 as shown in fig. 5, wherein h represents the height, i.e., the distance a in this example, g represents the acceleration of gravity, and t represents the time. The welding position of each rake nail is positioned by calculating the free falling body speed of the tobacco shred, the linear speed and the centripetal acceleration required by each rake nail according to the following formulas, and the calculation result is shown in table 1.
The speed v ═ gt ═ 9.8 × 0.315 ═ 3.1m/s when the materials are fed to the loosening rake;
the ratio of the diameter of a belt pulley on an output shaft of the motor to the diameter of a belt pulley on the loosening roller is 966 (14/24) 563.5r/min 9.4 r/s;
the time (namely the interval time of the brakes) t required by each group of brakes on the loosening roller to rotate 90 degrees is 1/n/4 is 0.025 s;
the angular speed omega of the loosening roller is delta theta/delta T is 2 pi/T is 2 pi n is 2 x 3.14 x 9.4 is 95 rad/s; wherein T represents a period, and the frequency f of uniform circular motion has the same meaning with the rotating speed n.
The linear speed v ═ delta S/delta T ═ 2 pi r/T ═ ω r of the rake nail;
the centripetal acceleration a of the rake nail is v2/r is omega 2r is (2 pi/T) 2 r;
TABLE 1 Length and speed of the respective Rake nails
The axial length of the loose section may be 890mm and each rake group may comprise 15 rakes, equally decreasing towards the two ends with a mean length of 185mm, the decreasing length being 22 mm. The adjacent rake nail groups can comprise 14 rake nails, the equivalent of the two rake nails with the length of 185mm in the middle is reduced towards the two ends, and the reduced length can be 22 mm. In one embodiment, the rake nails in each rake group are arranged in a helix, each helix rotating 1/4 turns; the rake nails of the four rake nail groups are distributed in a centrosymmetric circumferential array. In another embodiment, the rake nails in each rake nail group may also be arranged in a straight line, the rake nails in two adjacent rake nail groups are staggered, and the rake nails in two opposite rake nail groups are arranged one by one; the orthographic projection of the rake nail group comprising 15 rake nails is in an isosceles triangle structure, and the orthographic projection of the rake nail group comprising 14 rake nails is in an isosceles trapezoid structure.
The above are only preferred embodiments of the present invention, it should be noted that these examples are only for illustrating the present invention and not for limiting the scope of the present invention, and after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalents also fall within the scope of the claims appended to the present application.
Claims (10)
1. A loosening device for an airflow cut-tobacco drier is characterized by comprising a shell, a loosening roller and a driving mechanism, wherein a first end cover is arranged at the left end of the shell, and a second end cover is arranged at the right end of the shell; the upper end of the shell is provided with a feeding hole, and the lower end of the shell is provided with a feed opening; the second end of the loosening roller is rotatably connected with the second end cover, the first end of the loosening roller penetrates through the first end cover, and the loosening roller is rotatably connected with the first end cover; the driving mechanism is connected with the first end and is used for driving the loosening roller to rotate; the loosening section of the loosening roller is positioned in the shell, four rake nail groups are uniformly distributed on the circumference of the loosening section, all rake nails in the rake nail groups are uniformly distributed on the axial direction of the loosening section, and the rake nails are vertically connected with the loosening section; in the direction from the first end to the second end, the length of each rake nail in the rake nail group is gradually lengthened and then gradually shortened, and the length of the rake nail at the middle position of the loose section is longest.
2. The loosening apparatus of claim 1, wherein each of the braks in the group of braks is arranged in a straight line.
3. The loosening device for air-flow cut-tobacco dryers as claimed in claim 1, wherein said spikes of two adjacent groups of spikes are staggered and said spikes of two opposite groups of spikes are oppositely disposed.
4. The loosening apparatus of claim 1, wherein each of the rakes in the set of rakes is helically disposed.
5. The loosening apparatus of claim 1, wherein the difference between the lengths of two adjacent brazes in the group is the same.
6. The loosening apparatus of claim 1, wherein the loosening roller is rotatably coupled to the first end cap and the second end cap via bearings.
7. The loosening apparatus of claim 1, wherein a sealing means is disposed between the loosening roller and each of the first and second end caps.
8. The loosening apparatus of claim 1, wherein the driving mechanism comprises a motor disposed on an outer wall of the housing, a pulley disposed on the first end, and a v-belt having an output shaft coupled to the pulley via the v-belt.
9. The loosening apparatus of claim 8, wherein the drive mechanism further comprises a controller, a frequency converter disposed on the motor, a sensor for detecting a rotational speed of the loosening roller, the sensor being disposed on the first end; the sensor and the frequency converter are respectively and electrically connected with the controller, and the frequency converter is electrically connected with the motor.
10. The loosening device for an air-flow cut-tobacco drier according to any one of claims 1 to 9, wherein a teflon non-stick coating is provided on an inner wall surface of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110841134.6A CN113349402A (en) | 2021-07-23 | 2021-07-23 | Loosening device for airflow cut-tobacco drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110841134.6A CN113349402A (en) | 2021-07-23 | 2021-07-23 | Loosening device for airflow cut-tobacco drier |
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| Publication Number | Publication Date |
|---|---|
| CN113349402A true CN113349402A (en) | 2021-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110841134.6A Pending CN113349402A (en) | 2021-07-23 | 2021-07-23 | Loosening device for airflow cut-tobacco drier |
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| Country | Link |
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| CN (1) | CN113349402A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983803A (en) * | 2021-10-26 | 2022-01-28 | 谷往劲来无锡生物科技有限公司 | Glossy ganoderma extract product drying system |
| CN116869206A (en) * | 2023-06-20 | 2023-10-13 | 浙江中烟工业有限责任公司 | A device for horizontally leveling and loosening leaves before drying |
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| CN203789121U (en) * | 2014-03-04 | 2014-08-27 | 湖北中烟工业有限责任公司 | Vertical feeding and leaf loosening and uniformizing device of tobacco cutter |
| CN205262559U (en) * | 2015-12-30 | 2016-05-25 | 浙江中烟工业有限责任公司 | Two harrow material roller electronic belt conveyor scale mixing device |
| CN106115298A (en) * | 2016-08-12 | 2016-11-16 | 安徽中烟再造烟叶科技有限责任公司 | Offal raw material feeding device |
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| CN212402150U (en) * | 2020-05-27 | 2021-01-26 | 浙江中烟工业有限责任公司 | Material shifting device of wire storage cabinet |
| CN215898851U (en) * | 2021-07-23 | 2022-02-25 | 河南中烟工业有限责任公司 | Loosening device for airflow cut-tobacco drier |
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2021
- 2021-07-23 CN CN202110841134.6A patent/CN113349402A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1174046A2 (en) * | 2000-07-20 | 2002-01-23 | Hauni Maschinenbau AG | Method and device for separating tobacco fibres |
| CN2831793Y (en) * | 2005-11-03 | 2006-11-01 | 江苏智思机械制造有限公司 | Cut tobacco on-line expand drying device |
| CN203207169U (en) * | 2013-03-26 | 2013-09-25 | 龙岩烟草工业有限责任公司 | Tobacco shred caking preventing roller stirring device for super elevator |
| CN203789121U (en) * | 2014-03-04 | 2014-08-27 | 湖北中烟工业有限责任公司 | Vertical feeding and leaf loosening and uniformizing device of tobacco cutter |
| CN205262559U (en) * | 2015-12-30 | 2016-05-25 | 浙江中烟工业有限责任公司 | Two harrow material roller electronic belt conveyor scale mixing device |
| CN106115298A (en) * | 2016-08-12 | 2016-11-16 | 安徽中烟再造烟叶科技有限责任公司 | Offal raw material feeding device |
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| CN212402150U (en) * | 2020-05-27 | 2021-01-26 | 浙江中烟工业有限责任公司 | Material shifting device of wire storage cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983803A (en) * | 2021-10-26 | 2022-01-28 | 谷往劲来无锡生物科技有限公司 | Glossy ganoderma extract product drying system |
| CN116869206A (en) * | 2023-06-20 | 2023-10-13 | 浙江中烟工业有限责任公司 | A device for horizontally leveling and loosening leaves before drying |
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