CN219829269U - A kind of agricultural product drying system - Google Patents
A kind of agricultural product drying system Download PDFInfo
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- CN219829269U CN219829269U CN202320593613.5U CN202320593613U CN219829269U CN 219829269 U CN219829269 U CN 219829269U CN 202320593613 U CN202320593613 U CN 202320593613U CN 219829269 U CN219829269 U CN 219829269U
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Abstract
本实用新型提供一种农产品干燥系统，包括，用于容纳待干燥农产品的干燥室；为所述干燥室提供低温过热蒸汽的供汽系统；用于将低温过热蒸汽输送至系统各部位的蒸汽管道系统；其特征在于：所述低温过热蒸汽经所述管道系统输送到所述干燥室内对待干燥农产品进行干燥。本实用新型技术方案采用低温过热蒸汽干燥农农产品时，能有效保持其营养成分和口感，相比现有技术和设备可大幅提高农产品烘干后的品质；同时具备较高的干燥效率，节能，无污染；同时该技术方案结构简单，便于安装和维修，具备较好的市场推广前景。
The utility model provides an agricultural product drying system, which includes a drying chamber for accommodating agricultural products to be dried; a steam supply system for providing low-temperature superheated steam to the drying chamber; and a steam pipeline for transporting low-temperature superheated steam to various parts of the system. System; characterized in that: the low-temperature superheated steam is transported to the drying chamber through the pipeline system to dry the agricultural products to be dried. The technical solution of this utility model uses low-temperature superheated steam to dry agricultural products, which can effectively maintain their nutritional components and taste. Compared with existing technologies and equipment, the quality of dried agricultural products can be greatly improved; at the same time, it has high drying efficiency and energy saving. It is pollution-free; at the same time, this technical solution has a simple structure, is easy to install and maintain, and has good market promotion prospects.
Description
Technical Field
The utility model relates to the field of drying equipment, in particular to an agricultural product drying system.
Background
China is a large agricultural country, and along with the social development, the production and preservation of agricultural products and agricultural and sideline products are very much in the scene of needing drying equipment. For example, direct crops such as sorghum, rice, peanut, corn, wheat and the like are processed or stored after being treated by a drying device, and meanwhile, agricultural and sideline products brought by agricultural production, including agricultural, forest, pasture, sideline, fishing and the like, grain and economic crops, bamboo and wood, industrial oil and lacquer glue, livestock agricultural products, silkworm cocoon silk, dried fresh fruits, dried fresh vegetables and seasonings, medicinal materials, soil and agricultural products, water agricultural products and the like are also subjected to different drying degrees.
However, most of the drying apparatuses currently used in the market dry agricultural products by using hot air. The agricultural products dried by the traditional drying equipment and technology have poor drying uniformity, have great influence on taste and nutritive value, have difficult requirements on the quality of the dried partial grains, have high unit heat consumption, huge energy loss and lower operation efficiency. Meanwhile, dust has great pollution to the environment in the drying process;
chinese patent document CN205124897U discloses a grain dryer, comprising a drying barrel, wherein the upper part of the drying barrel is provided with a feed inlet and an air outlet, the lower part of the drying barrel is provided with a discharge outlet and an air inlet, the air outlet is provided with an air exhaust fan, and the air inlet is provided with an air inlet fan; a plurality of heating pipes are arranged in the side wall and the bottom wall of the drying barrel. The principle that the agricultural products are heated and dried by the traditional heating pipe is utilized, and the drying efficiency is low. When the heating tube heats, the temperature of the periphery is raised faster, the temperature of other areas of the drying barrel is lower, the condition that the drying is unevenly heated exists, and the quality of agricultural products to be dried is greatly affected.
Disclosure of Invention
The utility model aims to provide an agricultural product drying system which solves the technical problems of low agricultural product drying efficiency, influence on the quality of agricultural products after drying, high drying energy consumption and environmental pollution in the drying process.
In order to achieve the above purpose, the specific technical scheme of the agricultural product drying system of the utility model is as follows:
an agricultural product drying system comprising a drying chamber for containing agricultural products to be dried; a steam supply system for supplying low-temperature superheated steam to the drying chamber; a steam piping system for delivering low temperature superheated steam to various parts of the system; the method is characterized in that: and the low-temperature superheated steam is conveyed into the drying chamber through the pipeline system to dry the agricultural products to be dried.
Further, the drying chamber includes: a feed inlet for feeding agricultural products to be dried into the drying chamber;
a steam inlet for the entry of said low temperature superheated steam; a steam outlet for discharging steam in the drying chamber; a discharge device for discharging the dried agricultural product from the drying chamber; and the air extracting device is used for reducing the air pressure in the drying chamber.
Further, the feed inlet is arranged above the drying chamber in a sealable manner; the steam inlet is arranged on the outer side wall of the lower part of the drying chamber; the steam outlet is arranged above the drying chamber; the discharging device is arranged below the drying chamber and is arranged in a sealable manner; the air extracting device is communicated with the steam outlet.
Further, the drying chamber comprises an integral frame, and the integral frame is arranged outside the drying chamber.
Still further, a steam inlet channel layer for low-temperature superheated steam to circulate is arranged outside the peripheral wall of the lower part of the drying chamber, and a vent hole for low-temperature superheated steam in the steam inlet channel layer to enter the drying chamber is arranged on the peripheral wall of the lower part of the drying chamber;
the drying chamber is internally provided with a steam inlet pipe and a steam outlet pipe for low-temperature superheated steam to pass through, the lower end of the steam inlet pipe is connected with the bottom of the drying chamber, and the low-temperature superheated steam in the steam inlet passage layer enters the steam inlet pipe through a through hole arranged at the joint of the steam inlet pipe and the bottom of the drying chamber;
the upper end of the steam outlet pipe is fixed on the upper part of the drying chamber through a bracket, and the upper end of the steam outlet pipe is communicated with the steam outlet channel layer.
Further, the device also comprises a refining device which is arranged above the drying chamber and enables the agricultural products to be dried to enter the drying chamber, and the refining device consists of a motor and a rotary scraping plate.
Further, a steam outlet channel layer for water vapor circulation is arranged between the integral frame and the peripheral wall of the upper part of the drying chamber; and the peripheral wall of the upper part of the drying chamber is provided with vent holes for water vapor to enter the vapor outlet channel layer.
Still further, still be provided with the heat preservation outside the whole frame for reduce the heat loss in the drying chamber.
Further, the steam inlet pipe and the steam outlet pipe are cylindrical pipe bodies with vent holes on pipe walls; the upper end of the steam inlet pipe is fixed on the upper part of the drying chamber through a bracket and is not communicated with the steam outlet channel layer.
The utility model takes away the moisture contained in the agricultural products after the low-temperature superheated steam fully contacts the agricultural products to be dried, and has the following advantages: 1. when the agricultural products are dried by adopting low-temperature superheated steam, the nutritional ingredients and the taste of the agricultural products can be effectively maintained, and 2, the agricultural products dehydrated by the agricultural products and the using method of the utility model have good rehydration property, and the color and the freshness of the agricultural products can reach about 90 percent; 3. the precipitation rate is high and can reach more than 1.5, so that the drying speed is high, and the drying efficiency is high; 4. the agricultural products and the using method of the utility model have no pollution in the process of drying the agricultural products; compared with hot air heat, the steam heat used in the mode can be greatly reduced, so that the energy is saved; 5. the technical scheme has simple structure, is convenient to install and maintain, and has better market popularization prospect.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic top view of the present utility model;
FIG. 3 is a schematic diagram of an embodiment of the present utility model;
the figure indicates: 1. a drying chamber; 2. a steam inlet channel layer; 3. a steam inlet channel layer; 4. an air extracting device; 5. a feed inlet; 6. a steam inlet; 7. a steam outlet; 8. an integral frame; 9. a steam inlet pipe; 10. a steam outlet pipe; 11. a steam outlet channel layer; 12. a material homogenizing device; 13. and a heat preservation layer.
Detailed Description
For a better understanding of the objects, structure and function of the present utility model, a system and method for drying agricultural products according to the present utility model will be described in further detail with reference to the accompanying drawings.
In the description of this patent, it should be understood that, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to the orientation or positional relationship as shown in the drawings, merely for convenience in describing the patent and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the patent, but rather that the terms "mounted," "configured," "connected," "secured," "screwed," etc. should be construed broadly, and may be fixedly connected, or may be detachably connected, or integrated, for example; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this patent will be understood by those of ordinary skill in the art.
In this patent application, similar to the descriptions of the steam outlet pipe, the steam inlet channel layer and the like, the distinction between the steam and the gas is to consider the different forms of the steam generated under different temperatures and pressures, and the expressed principle is consistent and should not be considered as limiting the technical scheme of the utility model.
As shown in fig. 1, as a first embodiment of the present utility model, an agricultural product drying system of the present utility model includes, a drying chamber 1 for accommodating agricultural products to be dried; a steam supply system for supplying low-temperature superheated steam to the drying chamber 1; a steam piping system for delivering low temperature superheated steam to various parts of the system; the method is characterized in that: the low-temperature superheated steam is conveyed into the drying chamber 1 through the pipeline system to dry agricultural products to be dried. In this patent technical scheme, the steam pipe system is the generic term for specific components such as the steam inlet channel layer 2, the steam inlet pipe 9, the steam outlet pipe 10, the steam outlet channel layer 11 mentioned later, and the steam supply system can be communicated to the relevant pipes of the drying chamber through external pipes. The superheated steam is the saturated steam with the steam temperature higher than the saturated steam temperature under the same pressure under a certain pressure, and can be changed into the saturated steam after absorbing a certain amount of moisture, and has the water absorption characteristic. According to the drying chamber 1 with high air tightness, the structure for improving the sufficient contact between the agricultural products to be dried and the low-temperature superheated steam flow is arranged in the drying chamber 1, and then the steam flow is guided by the pipeline system, so that the moisture contained in the agricultural products is taken away; when the agricultural products are dried by adopting low-temperature superheated steam, the nutrient components and the taste of the agricultural products can be effectively maintained, and the agricultural products have higher drying efficiency.
The drying chamber 1 includes: a feed inlet 5 for the agricultural product to be dried to enter the drying chamber; a steam inlet 6 for the entry of said low temperature superheated steam; a steam outlet 7 for discharging the steam in the drying chamber 1; a discharge device 3 for discharging the dried agricultural products out of the drying chamber 1; and an air extracting device 4 for reducing the air pressure in the drying chamber 1. The feeding port 5 and the discharging device 3 designed by the utility model have a preferable scheme that can be connected with the structure of the drying chamber 1 in a high-air density manner, and a more mature matching scheme is available in the market at present and is not described herein. The drying chamber 1 can be arranged in any geometric shape and can be arranged and adjusted according to the specific operation place and the quantity of agricultural products to be dried. The main function of the feed opening 5 is to allow the agricultural products to be dried to enter the drying chamber 1, and the agricultural products can be connected with an external pipeline or directly enter the drying chamber through other modes. The steam inlet 6 is used as an inlet for externally connecting low-temperature superheated steam to enter the steam inlet channel layer 2. It is also possible to adjust the rate at which the low temperature superheated steam enters the steam inlet channel layer by providing a pumping fan at the steam inlet 6. The steam inlet 6 can be sealed and externally connected with a steam pipeline to be communicated with a low-temperature superheated steam production device matched with the design scheme of the utility model. The discharging hole 5 can also be designed into a form that a motor pushes a bottom plate to be sleeved in a clamping groove at the bottom of the drying chamber 1, and can also be in a form that a rotary baffle is sealed, and the rotary baffle is in a sealing state before the drying process of the agricultural products is finished, and when the agricultural products are finished drying, the discharging hole 5 is opened, so that the dried agricultural products fall out from the discharging hole 5 below the drying chamber 1 through gravity and are sent away by external conveying equipment; the air extractor 4 is composed of a pumping motor arranged at the pumping hole, and is mainly used for pumping the air flow 1 in the drying chamber, so that a certain negative pressure degree is achieved and maintained in the drying chamber.
The feed inlet 5 is arranged above the drying chamber 1 in a sealable manner; the steam inlet 6 is arranged on the outer side wall of the lower part of the drying chamber 1; the steam inlet 6 is arranged on the outer side wall of the lower part of the drying chamber 1, so that the low-temperature superheated steam below the drying chamber can move towards the top of the drying chamber 1 by the hot gas rising principle after the low-temperature superheated steam enters the steam inlet channel layer 2, and is in contact with the agricultural products to be dried. The steam outlet 6 is arranged above the drying chamber; the discharging device 3 is arranged below the drying chamber 1 and is arranged in a sealable manner; the air extracting device 4 is communicated with the steam outlet 7.
According to the technical scheme, the drying room comprises an integral frame 8, and the integral frame 8 is arranged outside the drying room 1. The integral frame 8 mainly plays a structural supporting role, and needs to strengthen the design and perfection of the integral frame for maintaining the integral structure of equipment, installing and fixing, repairing and designing an access hole or a ladder stand and the like, and a complete technical scheme is available on the market at present.
The steam inlet channel layer 2 for low-temperature superheated steam circulation is arranged outside the peripheral wall of the lower part of the drying chamber 1, the steam inlet channel layer 2 is annularly covered on the lower part of the drying chamber 1, low-temperature superheated steam can be provided in the wall of the drying chamber 1 in an omnibearing manner, the inner cavity of the drying chamber is in a uniform state, and the low-temperature superheated steam and agricultural products to be dried are fully contacted. A vent hole (not shown in the figure) for allowing the low-temperature superheated steam in the steam inlet channel layer 2 to enter the drying chamber is arranged on the peripheral wall of the lower part of the drying chamber 1; the air holes are distributed on the peripheral wall of the bottom of the drying chamber 1, and the quantity of the air holes can be flexibly set according to the humidity and quantity of the needed dried agricultural products on the premise of ensuring that the agricultural products to be dried do not fall out of the drying chamber 1 through the air holes. In the process that the low-temperature superheated steam enters the inner cavity of the drying chamber 1, the vent hole is used for enabling the low-temperature superheated steam to rapidly pass through gaps among agricultural products of materials to be dried due to the combined action of the air extractor 4 and the air extractor arranged at the feeding hole 5, so that moisture exuded by the agricultural products of the materials to be dried is taken away, and the low-temperature superheated steam is discharged out of the drying chamber 1 through the steam outlet 7, so that the agricultural products are dried.
An air inlet pipe 9 and an air outlet pipe 10 for passing low-temperature superheated steam are arranged in the drying chamber 1, the air inlet pipe 9 and the air outlet pipe 10 are distributed in the drying chamber 1, when agricultural products to be dried enter the drying chamber 1, the agricultural products to be dried are uniformly distributed around each pipeline, the lower end of the air inlet pipe 9 is connected with the bottom of the drying chamber 1, and the low-temperature superheated steam in the air inlet channel layer 2 enters the air inlet pipe 9 through a through hole formed in the joint of the air inlet pipe 9 and the bottom of the drying chamber 1; the inside of the steam outlet pipe 10 can be filled with low-temperature superheated steam in the drying chamber 1 through the steam inlet channel layer 2; when the low-temperature superheated steam in the steam inlet channel layer 2 enters the steam inlet pipe 9, part of the low-temperature superheated steam enters gaps among the agricultural products to be dried through the air holes arranged on the peripheral wall of the pipe body of the steam inlet pipe 9, is dried with the agricultural products to be dried, contacts with the agricultural products to be dried, and enters the steam outlet channel layer 11 through the air holes arranged on the peripheral wall of the upper part of the drying chamber 1; the other part enters the air outlet hole 10, and enters the air outlet channel layer 11 through the communication of the air outlet hole 10 and the air outlet channel layer 11, so that an air flow large circulation path between the air inlet channel layer and the air inlet pipe, between the air inlet channel layer and the air outlet pipe, between the air inlet pipe and the air outlet pipe and between the air inlet pipe and the air outlet channel layer is formed in the drying chamber 1, and the moisture on the surface of the agricultural product of the dried material and the moisture in the material are oozed smoothly all the time, thereby obtaining good drying effect, simultaneously achieving drying, fully keeping the nutrition components and the color degree of the agricultural product, and even improving the nutrition value of the agricultural product.
The upper end of the steam outlet pipe 10 is fixed at the upper part of the drying chamber 1 through a bracket, and the upper end of the steam outlet pipe 10 is communicated with the steam outlet channel layer 11. The steam outlet pipe 10 may be fixed to the upper portion of the drying chamber 1 in various conventional manners, such as bracket fixing, reinforcing plate fixing, connecting rod fixing, etc. The upper ends of the steam inlet pipe 9 and the steam outlet pipe 10 can be designed into an inverted cone structure, so that agricultural products to be dried can fall off rapidly when entering the drying chamber 1, and deposition is not caused.
According to the technical scheme, the agricultural product drying device further comprises a refining device 12 which is arranged above the drying chamber 1 and enables the agricultural product to be dried to enter the drying chamber, and the refining device 12 consists of a motor and a rotary scraping plate. The motor drives the rotary scraping plate to rotate, and the agricultural products entering the drying chamber 1 are stirred, so that the agricultural products can be stacked to the maximum extent in the drying chamber 1, and the space is fully saved.
A steam outlet channel layer 11 for water vapor circulation is arranged between the integral frame 8 and the upper peripheral wall of the drying chamber 1; the peripheral wall of the upper part of the drying chamber 1 is provided with vent holes for water vapor to enter the vapor outlet channel layer 11.
In the technical scheme of the utility model, a heat preservation 13 layer is further arranged outside the integral frame 8 and used for reducing heat loss in the drying chamber.
The steam inlet pipe 9 and the steam outlet pipe 10 are cylindrical pipe bodies with vent holes on the pipe walls; the upper end of the steam inlet pipe 9 is fixed at the upper part of the drying chamber 1 through a bracket and is not communicated with the steam outlet channel layer 11. The steam inlet pipe 9 is not communicated with the steam outlet channel layer 11 to avoid low-temperature overheat in the drying chamber
The steam is directly discharged into the drying chamber 1 to do ineffective work under the condition that the steam is not contacted with the agricultural products to be dried;
the low-temperature superheated steam is ensured to uniformly pass through the gap of the dried material, and the drying effect is fully ensured.
As shown in fig. 2, which is a top view of the first embodiment of the present utility model, it can be seen that the insulation layer 13 is located at the outermost part of the overall structure, followed by the overall frame 8 and the steam outlet channel layer 11.
As shown in fig. 3, in the second embodiment of the present utility model, under the design concept of the present utility model, when agricultural and sideline agricultural products such as vegetables, melons and fruits, medicinal materials, etc. are dried, the flowability of the agricultural products is poor, and the structure shown in fig. 3 is required to be set for drying. The low-temperature superheated steam enters the steam inlet channel layer 2 through the steam inlet 6, passes through the multi-layer metal mesh partition plate arranged in the drying chamber 1, contacts with the agricultural products to be dried placed on the metal mesh partition plate, and the air flow containing moisture of the agricultural products does work through the air extractor 4, so that the air flow is discharged out of the drying chamber 1, and the agricultural products are dried.
When in use, agricultural products to be dried enter the drying chamber 1 through the feed inlet 5, and then all channels connected with the drying chamber 1 are closed, so that the whole drying chamber 1 is in a sealed state and is maintained; the air in the drying chamber 1 is pumped away by the air extractor 4, so that the cavity of the drying chamber 1 is reduced to a certain negative air pressure, then the air extractor 4 is closed, the steam inlet 6 is opened, the low-temperature superheated steam enters the steam inlet channel layer 2, and at the moment, the pumping device at the steam inlet 6 can be opened, so that the speed of the low-temperature superheated steam entering the steam inlet channel layer 2 is improved.
When the steam in the drying chamber 1 reaches a certain temperature, the air extractor 4 is started to discharge the air flow containing the moisture of the agricultural products out of the drying chamber 1, so that the purpose of drying the agricultural products is achieved.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. An agricultural product drying system comprising a drying chamber for containing agricultural products to be dried; a steam supply system for supplying low-temperature superheated steam to the drying chamber; a steam piping system for delivering low temperature superheated steam to various parts of the system; the method is characterized in that: and the low-temperature superheated steam is conveyed into the drying chamber through the pipeline system to dry the agricultural products to be dried.
2. The agricultural product drying system of claim 1, wherein the drying chamber includes: a feed inlet for feeding agricultural products to be dried into the drying chamber; a steam inlet for the entry of said low temperature superheated steam; a steam outlet for discharging steam in the drying chamber; a discharge device for discharging the dried agricultural product from the drying chamber; and the air extracting device is used for reducing the air pressure in the drying chamber.
3. An agricultural product drying system according to claim 2, wherein: the feed inlet is arranged above the drying chamber in a sealable manner; the steam inlet is arranged on the outer side wall of the lower part of the drying chamber; the steam outlet is arranged above the drying chamber; the discharging device is arranged below the drying chamber and is arranged in a sealable manner; the air extracting device is communicated with the steam outlet.
4. The agricultural product drying system of claim 1, wherein: the drying room also comprises an integral frame, wherein the integral frame is arranged outside the drying room.
5. An agricultural product drying system according to claim 4, wherein: a steam outlet channel layer for water vapor circulation is arranged between the integral frame and the peripheral wall of the upper part of the drying chamber; and the peripheral wall of the upper part of the drying chamber is provided with vent holes for water vapor to enter the vapor outlet channel layer.
6. The agricultural product drying system according to claim 5, wherein a steam inlet channel layer through which low-temperature superheated steam flows is provided outside the outer peripheral wall of the lower portion of the drying chamber, and a vent hole through which the low-temperature superheated steam in the steam inlet channel layer enters the drying chamber is provided on the outer peripheral wall of the lower portion of the drying chamber;
the drying chamber is internally provided with a steam inlet pipe and a steam outlet pipe for low-temperature superheated steam to pass through, the lower end of the steam inlet pipe is connected with the bottom of the drying chamber, and the low-temperature superheated steam in the steam inlet passage layer enters the steam inlet pipe through a through hole arranged at the joint of the steam inlet pipe and the bottom of the drying chamber;
the upper end of the steam outlet pipe is fixed on the upper part of the drying chamber through a bracket, and the upper end of the steam outlet pipe is communicated with the steam outlet channel layer.
7. The agricultural product drying system of claim 1, wherein: the device also comprises a refining device which is arranged above the drying chamber and enables the agricultural products to be dried to enter the drying chamber, wherein the refining device consists of a motor and a rotary scraper.
8. An agricultural product drying system according to claim 4, wherein an insulation layer is further provided outside the integral frame for reducing heat loss within the drying chamber.
9. The agricultural product drying system of claim 6, wherein the steam inlet pipe and the steam outlet pipe are cylindrical pipe bodies with ventilation holes on pipe walls; the upper end of the steam inlet pipe is fixed on the upper part of the drying chamber through a bracket and is not communicated with the steam outlet channel layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320593613.5U CN219829269U (en) | 2023-03-24 | 2023-03-24 | A kind of agricultural product drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320593613.5U CN219829269U (en) | 2023-03-24 | 2023-03-24 | A kind of agricultural product drying system |
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| Publication Number | Publication Date |
|---|---|
| CN219829269U true CN219829269U (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320593613.5U Expired - Fee Related CN219829269U (en) | 2023-03-24 | 2023-03-24 | A kind of agricultural product drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358256A (en) * | 2023-03-24 | 2023-06-30 | 汉寿县庆源农业机械有限公司 | An agricultural product drying system and drying method |
-
2023
- 2023-03-24 CN CN202320593613.5U patent/CN219829269U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116358256A (en) * | 2023-03-24 | 2023-06-30 | 汉寿县庆源农业机械有限公司 | An agricultural product drying system and drying method |
| CN116358256B (en) * | 2023-03-24 | 2025-12-16 | 汉寿县庆源农业机械有限公司 | Agricultural product drying system and drying method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231107 Address after: 415900 Building 7, Yinhe Auto City, Hongqi Community, Canglang Subdistrict, Hanshou County, Changde City, Hunan Province Patentee after: Changde Qingyuan Agricultural Comprehensive Service Co.,Ltd. Address before: 415900 Building 7, Yinhe Auto City, Hongqi Community, Canglang Subdistrict, Hanshou County, Changde City, Hunan Province Patentee before: Hanshou County Qingyuan Agricultural Machinery Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20231013 |