CN113532046A - High temperature heat pump drying-machine for chinese-medicinal material - Google Patents
High temperature heat pump drying-machine for chinese-medicinal material Download PDFInfo
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- CN113532046A CN113532046A CN202110824698.9A CN202110824698A CN113532046A CN 113532046 A CN113532046 A CN 113532046A CN 202110824698 A CN202110824698 A CN 202110824698A CN 113532046 A CN113532046 A CN 113532046A
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- heat pump
- temperature heat
- medicinal material
- traditional chinese
- medicinal materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
- F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Medicines Containing Plant Substances (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a high-temperature heat pump dryer for traditional Chinese medicinal materials. Has the advantages that: according to the invention, through the guide structure arranged on the uniform heat spreading mechanism, after the inclined frame plate is contacted with the lower surface of the medicinal material placing plate, water drops formed by high temperature convergence on the lower surface of the medicinal material placing plate are matched with the guide rod and under the action of self dropping, concentrated collection and recycling are realized, so that the water drops are prevented from falling into the medicinal material placing plate on the next layer, the normal drying of medicinal materials at the middle position in the drying box body is influenced, the drying effect of the contact position of the medicinal material placing plate and the spacer layer is improved through the matching of the arranged spacer layer and the recovered water drops which are vaporized and heated in a concentrated manner at high temperature, and a large amount of water drops are prevented from being derived at the position.
Description
Technical Field
The invention relates to the field of traditional Chinese medicine processing, in particular to a high-temperature heat pump dryer for traditional Chinese medicinal materials.
Background
The traditional Chinese medicinal materials are famous and certified medicinal materials with Chinese characteristics from specific production areas, are mainly used as important medicinal materials in the treatment of diseases in traditional Chinese medicine, have certain elaboration on cultivation technology, harvesting and processing due to more concentrated production, and are dried as an important step in the production process of the traditional Chinese medicinal materials, the drying effect of the traditional Chinese medicinal materials is usually determined directly, and the traditional Chinese medicinal materials are dried by a high-temperature heat pump dryer at the present stage.
Put the dish with chinese-medicinal material flat stand and spread to when installing the stoving of carrying out the medicinal material in the stoving case, because these medicinal materials are being the placing of distance from top to bottom, so at long-time stoving in-process, the medicinal material of upper strata is put the bottom of the dish and then can be because of being heated and the comparatively slow influence of air flow, collects water droplet in its bottom, and the medicinal material surface of low drop to the below, thereby influences the normal stoving of medicinal material.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-temperature heat pump dryer for traditional Chinese medicinal materials, which solves the defect that in the prior art, when the traditional Chinese medicinal materials are spread on a placing tray and are arranged in a drying box for drying the medicinal materials, the medicinal materials are placed at a certain distance from top to bottom, so that in the long-time drying process, the bottom of the upper medicinal material placing tray is influenced by heat and slow air flow, water drops are collected at the bottom of the upper medicinal material placing tray and fall to the surface of the lower medicinal material, and the normal drying of the medicinal materials is influenced.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a high temperature heat pump drying-machine for chinese-medicinal material, its structure includes stoving box, built-in device, push-and-pull door, irritates wind pipeline, drying-machine, control panel, built-in device locates inside the stoving box, the push-and-pull door is installed in stoving box front surface, the pipeline is irritated in the drying-machine cooperation is connected with the stoving box, control panel installs in the drying-machine surface, built-in device includes the side frame board, evenly expands hot mechanism, the side frame board is equipped with two altogether and installs respectively in stoving box inner wall both sides, evenly expand hot mechanism and be a set of three interval form and arrange, and the left and right sides respectively with side frame board activity lock joint.
As a further scheme of the present invention, the uniform heat spreading mechanism includes a support rod, a heat spreading cavity, two spacer layers, two guide structures and two guide rods, wherein the heat spreading cavity is disposed inside the support rod and is an integrated structure, the spacer layers are mounted on the upper surface of the support rod, the two guide structures are respectively disposed on the front and rear surfaces of the support rod and are mounted in an inclined manner, and the guide rods are densely distributed at the ends of the guide structures and are connected horizontally, so as to support the partition board on which the traditional Chinese medicine is placed.
As a further scheme of the invention, through holes are distributed at the connecting part of the supporting and connecting rod and the guide structure, the supporting and connecting rod is of a trapezoidal structure, the connecting part of the supporting and connecting rod and the isolation pad layer is of a concave structure, and the screen plate is arranged, and is of an integrated structure with the supporting and connecting rod, so that water drops can be guided into the supporting and connecting rod by matching with the guide structure, and the water drops are vaporized by the supporting and connecting rod under the action of high temperature, so that the bottom of the medicinal material placing tray in contact with the isolation pad layer is heated.
As a further scheme of the invention, the water-absorbing cotton pad is filled in the heat diffusion cavity, and water drops collected on the lower surface of the medicinal material placing disc are intensively collected after being guided, so that the water drops are vaporized and conducted heat under the action of high temperature by matching with the water-absorbing cotton pad, and the heating effect of the contact position of the medicinal material placing disc and the spacer layer is consistent with that of other hollowed-out positions.
In a further aspect of the present invention, the spacer layer is a thermally conductive material and has a rough surface.
As a further scheme of the invention, the guiding structure comprises an inclined frame plate, a storage groove, suction strips and drainage wires, wherein the inclined frame plate is internally of a hollow structure, the storage groove is formed in the upper surface of the inclined frame plate and is of an integrated structure, the suction strips are distributed in the storage groove and are installed in a semi-surrounding manner, the drainage wires are arranged at the lower end of the suction strips and are positioned in the inclined frame plate, and the suction strips are mutually connected by matching with the drainage wires, so that the water drops collected on the lower surface of the medicinal material placing plate can be favorably collected and recycled in a centralized manner by matching with the guide rods and the dropping effect of the water drops.
As a further scheme of the invention, the absorbing strip is made of water absorbing materials.
As a further scheme of the invention, one end of the drainage wire is respectively wound with the suction strip, and the other end of the drainage wire penetrates through the through hole formed in the support rod and extends into the heat expansion cavity to be matched with the water absorption cotton pad.
Advantageous effects of the invention
Compared with the traditional high-temperature heat pump dryer for traditional Chinese medicinal materials, the dryer has the following beneficial effects:
according to the invention, through the guide structure arranged on the uniform heat spreading mechanism, after the inclined frame plate is contacted with the lower surface of the medicinal material placing plate, water drops formed by high temperature convergence on the lower surface of the medicinal material placing plate are concentrated and collected for recycling under the action of matching with the guide rod and the dropping action of the water drops, so that the water drops are prevented from falling into the medicinal material placing plate on the next layer, and the normal drying of medicinal materials at the middle position in the drying box body is influenced.
According to the invention, through the matching of the arranged isolation cushion layer and the concentrated vaporization and temperature rise of the recovered water drops at high temperature, the drying effect of the contact position of the medicinal material placing disc and the isolation cushion layer is improved, and a large amount of water drops are prevented from being derived from the position.
Drawings
Other features, objects and advantages of the invention will become more apparent from a reading of the detailed description of non-limiting embodiments with reference to the attached drawings.
In the drawings:
fig. 1 is a schematic structural diagram of a high-temperature heat pump dryer for traditional Chinese medicinal materials.
Fig. 2 is a schematic front view of the built-in device of the present invention.
FIG. 3 is a schematic top view of the built-in device of the present invention.
FIG. 4 is an enlarged view of the structure A in FIG. 3 according to the present invention.
Fig. 5 is a side view of the guiding structure of the present invention.
In the figure: the drying machine comprises a drying box body-1, a built-in device-2, a sliding door-3, an air filling pipeline-4, a drying machine-5, a control panel-6, a side frame plate-2 a, a uniform heat dissipation mechanism-2 b, a supporting and connecting rod-2 b1, a heat dissipation cavity-2 b2, a spacer layer-2 b3, a guide structure-2 b4, a guide rod-2 b5, a screen plate-2 b11, an inclined frame plate-2 b41, a storage groove-2 b42, a suction strip-2 b43 and a drainage wire-2 b 44.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The first embodiment:
as shown in fig. 1 to 5, the present invention provides a technical scheme of a high temperature heat pump dryer for traditional Chinese medicinal materials:
as shown in fig. 1-3, a high-temperature heat pump dryer for traditional Chinese medicinal materials structurally comprises a drying box body 1, a built-in device 2, a sliding door 3, an air filling pipeline 4, a dryer 5 and a control panel 6, wherein the built-in device 2 is arranged inside the drying box body 1, the sliding door 3 is installed on the front surface of the drying box body 1, the dryer 5 is matched with the air filling pipeline 4 and is connected with the drying box body 1, the control panel 6 is installed on the surface of the dryer 5, the built-in device 2 comprises side frame plates 2a and uniform heat expansion mechanisms 2b, the side frame plates 2a are provided with two parts and are respectively installed on two sides of the inner wall of the drying box body 1, the uniform heat expansion mechanisms 2b are arranged in a three group with intervals, and the left side and the right side of the uniform heat expansion mechanisms are movably fastened with the side frame plates 2a respectively.
As shown in fig. 4-5, the uniform heat spreading mechanism 2b includes a supporting rod 2b1, a heat spreading cavity 2b2, a spacer layer 2b3, a guiding structure 2b4, and a guiding rod 2b5, the heat spreading cavity 2b2 is disposed inside the supporting rod 2b1 and is an integrated structure, the spacer layer 2b3 is mounted on the upper surface of the supporting rod 2b1, the guiding structure 2b4 is provided with two layers, which are respectively located on the front and rear surfaces of the supporting rod 2b1 and are installed in an inclined manner, and the guiding rods 2b5 are densely distributed at the tail end of the guiding structure 2b4 and are connected in a horizontal manner, which is beneficial to realizing a supporting function for a partition board in which traditional Chinese medicinal materials are placed.
As shown in fig. 4-5, the guiding structure 2b4 includes an inclined frame plate 2b41, a storage groove 2b42, a suction strip 2b43, and a drainage wire 2b44, the inclined frame plate 2b41 is hollow, the storage groove 2b42 is disposed on the upper surface of the inclined frame plate 2b41 and is an integrated structure, the suction strip 2b43 is disposed in the storage groove 2b42 and is installed in a semi-enclosed manner, the drainage wire 2b44 is disposed at the lower end of the suction strip 2b43 and is disposed in the inclined frame plate 2b41, and the suction strips 2b43 are connected with the drainage wire 2b44, so as to facilitate the dripping of water drops collected on the lower surface of the medicinal material placing plate under the cooperation of the drainage rod 2b5 and the drainage wire itself, and perform centralized collection and recycling.
As shown in fig. 4 to 5, the absorbent strip 2b43 is made of water-absorbing material.
As shown in fig. 4-5, one end of the drainage thread 2b44 is wound around the suction strip 2b43 and the other end of the drainage thread passes through the through hole formed in the branch rod 2b1 and extends into the heat diffusion cavity 2b2 to match with the absorbent cotton pad.
The specific realization principle is as follows: put the dish with chinese-medicinal material flat stand and spread to when installing the stoving of carrying out the medicinal material in the stoving case, because these medicinal materials are being the placing of distance from top to bottom, so at long-time stoving in-process, the medicinal material of upper strata is put the bottom of the dish and then can be because of being heated and the comparatively slow influence of air flow, collects water droplet in its bottom, and the medicinal material surface of low drop to the below, thereby influences the normal stoving of medicinal material.
Therefore, by using the built-in device 2, two ends of the uniform heat spreading mechanism 2b are movably fastened with the surface of the side frame plate 2a, so as to facilitate the loading and unloading of the uniform heat spreading mechanism 2b, the medicinal material placing tray is placed on the surface of the uniform heat spreading mechanism 2b and is firstly contacted with the spacer layer 2b3, the spacer layer 2b3 moves downwards to be in a contraction state after being subjected to the upper gravity, meanwhile, the leading rod 2b5 is in compact fit contact with the lower surface of the medicinal material placing tray, when the medicinal material placing tray is heated and the air circulation is slow, the existing steam water drops are collected, the leading rods 2b5 are densely distributed to guide the water drops so as to prevent the water drops from falling downwards, the water drops are guided by the leading rods 2b5 to flow to the guiding structure 2b4, and meanwhile, part of the water drops at the bottom of the medicinal material fat tray above the storage groove 2b42 directly fall into the storage groove 2b42, the water drops are collected by matching with the suction strip 2b43, and are guided to the inside of the branch rod 2b1 by matching with the drainage wire 2b44 when the water drops collected by the suction strip 2b43 are in a saturated state;
then place the dish lower surface to the medicinal material and collect the operation back of concentrating, can effectually reduce the medicinal material and place the medicinal material surface of dripping to the below of dish lower surface, influence the normal stoving effect of medicinal material then.
In summary, in the invention, by the guiding structure of the uniform heat spreading mechanism, after the inclined frame plate contacts with the lower surface of the medicinal material placing plate, water drops formed by high temperature on the lower surface of the medicinal material placing plate are collected under the action of the guide rod and the dropping of the water drops, so that concentrated collection and recycling are realized, and the water drops are prevented from falling into the medicinal material placing plate on the next layer, thereby influencing the normal drying of the medicinal materials at the middle position in the drying box body.
Second embodiment:
as shown in fig. 2 to 5, the present invention provides a technical scheme of a high temperature heat pump dryer for traditional Chinese medicinal materials:
as shown in fig. 2-5, a high temperature heat pump dryer for traditional Chinese medicine, the structure of which includes that the connection portion of the branch rod 2b1 and the guide structure 2b4 is distributed with through holes, the branch rod 2b1 is a trapezoidal structure and is concave at the connection portion with the spacer layer 2b3 and is provided with a screen 2b11, the screen 2b11 and the branch rod 2b1 are integrated, so as to be beneficial to guiding water drops into the branch rod 2b1 by matching with the guide structure 2b4, and vaporize at the branch rod 2b1 under the action of high temperature, so that the bottom of the medicinal material placing tray contacting with the spacer layer 2b3 is heated.
As shown in fig. 2-5, the heat diffusion cavity 2b2 is filled with a water-absorbing cotton pad, and water drops collected on the lower surface of the medicinal material placing plate are collected after being guided, so that the water drops are vaporized and conducted under the action of high temperature by matching with the water-absorbing cotton pad, and the contact position between the medicinal material placing plate and the spacer layer 2b3 is consistent with the heating effect of other hollow places.
As shown in fig. 2 to 5, the spacer layer 2b3 is a heat conductive material and has a rough surface.
On the basis of embodiment 1, the heat diffusion cavity 2b2 integrated with the branch and connection rod 2b1 is filled with a water absorption cotton pad, water drops introduced through the drainage wire 2b44 are further absorbed, so that the water drops are absorbed by the water absorption cotton pad, the water absorption cotton pad absorbs water and is matched with the high temperature action around the water absorption cotton pad, the phenomenon of vaporization and temperature rise occurs, hot air is transmitted to the separation pad layer 2b3 along the screen plate 2b11, and the phenomenon of continuous temperature rise of the position of the medicinal material placing tray contacted with the separation pad layer 2b3 is caused, so that a large amount of water drops are prevented from being derived at the position.
In summary, in the invention, through the cooperation of the isolation cushion layer and the recovered water drops, the drying effect of the contact position of the medicinal material placing disc and the isolation cushion layer is improved, and a large amount of water drops are prevented from being derived from the contact position.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a high temperature heat pump drying-machine for chinese-medicinal material, its structure includes stoving box (1), built-in device (2), push-and-pull door (3), irritates wind pipeline (4), drying-machine (5), control panel (6), its characterized in that: the built-in device (2) is arranged inside the drying box body (1), the sliding door (3) is arranged on the front surface of the drying box body (1), the dryer (5) is matched with the air filling pipeline (4) to be connected with the drying box body (1), and the control panel (6) is arranged on the surface of the dryer (5);
built-in device (2) include side frame board (2a), evenly expand hot mechanism (2b), side frame board (2a) are equipped with two altogether and install respectively in stoving box (1) inner wall both sides, evenly expand hot mechanism (2b) and be three a set of interval form and arrange, and the left and right sides respectively with side frame board (2a) activity lock joint.
2. The high-temperature heat pump dryer for traditional Chinese medicinal materials as claimed in claim 1, wherein: evenly expand hot mechanism (2b) including propping up and connecting pole (2b1), expand hot chamber (2b2), spacer layer (2b3), guide structure (2b4), draw bar (2b5), expand hot chamber (2b2) and locate and prop up and connect pole (2b1) inside and structure as an organic whole, install in propping up pole (2b1) upper surface spacer layer (2b3), guide structure (2b4) are equipped with two altogether and are located respectively and prop up pole (2b1) front and back surface to be the installation of slope form, draw bar (2b5) are densely distributed in guide structure (2b4) terminal to be the level form and be connected.
3. The high-temperature heat pump dryer for traditional Chinese medicinal materials as claimed in claim 2, wherein: the branch connects pole (2b1) and guide structure (2b4) junction to distribute the perforation, branch connects pole (2b1) to be the trapezium structure and is the indent structure and be equipped with otter board (2b11) with dottle pin layer (2b3) junction, otter board (2b11) and branch connects pole (2b1) as the integrated structure.
4. The high-temperature heat pump dryer for traditional Chinese medicinal materials as claimed in claim 2, wherein: the heat diffusion cavity (2b2) is filled with a water absorption cotton pad.
5. The high-temperature heat pump dryer for traditional Chinese medicinal materials as claimed in claim 2, wherein: the isolation layer (2b3) is made of heat conducting material and the surface is rough.
6. The high-temperature heat pump dryer for traditional Chinese medicinal materials as claimed in claim 1, wherein: guide structure (2b4) include slope framed panel (2b41), hold groove (2b42), inhale strip (2b43), drainage (2b44), slope framed panel (2b41) is inside to be hollow structure, hold groove (2b42) and locate slope framed panel (2b41) upper surface and be the integral structure, inhale strip (2b43) and distribute and hold groove (2b42) inside and be half encirclement form installation, drainage (2b44) are located and are inhaled strip (2b43) lower extreme to be located slope framed panel (2b41) inside, it is connected to inhale strip (2b43) cooperation drainage (2b44) each other.
7. The high-temperature heat pump dryer for traditional Chinese medicinal materials as claimed in claim 6, wherein: the absorbing strip (2b43) is made of water absorbing material.
8. The high-temperature heat pump dryer for traditional Chinese medicinal materials as claimed in claim 6, wherein: one end of the drainage wire (2b44) is respectively wound with the suction strip (2b43), and the other end of the drainage wire passes through a perforation arranged on the branch connecting rod (2b1) and extends into the heat diffusion cavity (2b2) to be matched with the absorbent cotton pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110824698.9A CN113532046B (en) | 2021-07-21 | 2021-07-21 | High temperature heat pump drying-machine for chinese-medicinal material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110824698.9A CN113532046B (en) | 2021-07-21 | 2021-07-21 | High temperature heat pump drying-machine for chinese-medicinal material |
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| Publication Number | Publication Date |
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| CN113532046A true CN113532046A (en) | 2021-10-22 |
| CN113532046B CN113532046B (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110824698.9A Active CN113532046B (en) | 2021-07-21 | 2021-07-21 | High temperature heat pump drying-machine for chinese-medicinal material |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20110068615A (en) * | 2009-12-16 | 2011-06-22 | (주)에프티이앤이 | Dryer |
| CN107289748A (en) * | 2017-08-08 | 2017-10-24 | 成都言行果科技有限公司 | A kind of raw material processing Drying |
| CN107702500A (en) * | 2017-09-06 | 2018-02-16 | 成都众孚理想科技有限公司 | A kind of Dryer Box Using Heat Pump |
| CN209726651U (en) * | 2018-12-29 | 2019-12-03 | 宿迁市锦绣化纤有限公司 | A kind of fiber process energy-saving drying device |
| CN210952186U (en) * | 2019-10-25 | 2020-07-07 | 桂东县兴民药材种植专业合作社 | Chinese-medicinal material drying equipment |
| CN112082332A (en) * | 2020-09-22 | 2020-12-15 | 朱小明 | High-temperature circulating oven with dehumidification function |
-
2021
- 2021-07-21 CN CN202110824698.9A patent/CN113532046B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110068615A (en) * | 2009-12-16 | 2011-06-22 | (주)에프티이앤이 | Dryer |
| CN107289748A (en) * | 2017-08-08 | 2017-10-24 | 成都言行果科技有限公司 | A kind of raw material processing Drying |
| CN107702500A (en) * | 2017-09-06 | 2018-02-16 | 成都众孚理想科技有限公司 | A kind of Dryer Box Using Heat Pump |
| CN209726651U (en) * | 2018-12-29 | 2019-12-03 | 宿迁市锦绣化纤有限公司 | A kind of fiber process energy-saving drying device |
| CN210952186U (en) * | 2019-10-25 | 2020-07-07 | 桂东县兴民药材种植专业合作社 | Chinese-medicinal material drying equipment |
| CN112082332A (en) * | 2020-09-22 | 2020-12-15 | 朱小明 | High-temperature circulating oven with dehumidification function |
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| CN113532046B (en) | 2023-01-24 |
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Effective date of registration: 20230106 Address after: 533000 xinchangpian No. 1, Tianlin County, Baise City, Guangxi Zhuang Autonomous Region Applicant after: GUANGXI WEIJIAN PHARMACEUTICAL Co.,Ltd. Address before: 221001 No. 2, Taoshan Road, Xuzhou Economic and Technological Development Zone, Jiangsu Province Applicant before: Tang Zhao |
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