Hot air circulating oven
Through the dust removal system of the hot air circulation oven, the use of suction fan and multi-layer dust removal bag filtration technology, the problem of debris adhesion during the drying of Chinese herbal medicines is solved, and the quality of finished products and drying efficiency are improved.
Patent Information
- Application Number
- CN202421047121.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-15
AI Technical Summary
During the drying process of existing Chinese herbal medicines, the debris produced by the slices are blown up by hot air and attached to the finished product, affecting the quality.
A hot air circulation oven is designed, using a dust removal box and a multi-layer dust removal bag filtering system to form negative pressure through the suction fan, sucking air and debris in the drying box into the dust removal box, and filtering it with the dust removal bag and re-entering the clean air. The hot air fan realizes effective capture and removal of debris.
It effectively improves the finished product quality of Chinese herbal medicines, prevents debris from adhering to the finished product, and improves drying efficiency and product purity.
Smart Images
Figure CN222279123U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of processing Chinese medicine pieces, in particular to a hot air circulation oven. Background Art
[0002] At present, Chinese medicinal materials and Chinese herbal medicines include grasses, flowers, leaves, branches, barks, fruits, vines, roots, etc. Chinese herbal medicines are processed and prepared according to the theories and methods of traditional Chinese medicine. They can be directly used in clinical Chinese medicine. They are brewed with boiling water and then drunk. In order to ensure the preservation and efficacy of Chinese herbal medicines, the processed and cleaned pieces need to be dried.
[0003] In the process of processing and drying the existing Chinese herbal medicine slices, hot air is mostly introduced into the drying box where the Chinese herbal medicine slices are placed through a hot air blower to dry the Chinese herbal medicine slices. After the Chinese herbal medicine slices are dried, debris will be generated on their surface due to slicing and other processing. After the drying is completed, these debris will be blown up by the hot air and spread to the inside of the drying box. When the drying is stopped, the debris will adhere to the surface of the slices, thereby affecting the quality of the finished product of the Chinese herbal medicine slices. Therefore, a hot air circulation oven is urgently needed to solve this problem. Utility Model Content
[0004] The utility model aims to provide a hot air circulation oven to solve the problems raised in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot air circulation oven, comprising a bottom plate for installing the hot air circulation oven, a bearing plate and a drying box, the top surface of the bottom plate is fixedly connected with a hot air blower, the bearing plate is hollow, and the top surface of the bearing plate is provided with an air outlet, a pipeline is connected between the air outlet of the hot air blower and the bearing plate, the top surface of the bottom plate is symmetrically fixedly connected with vertical plates, and a mounting plate is fixedly connected between the two vertical plates;
[0006] A dust removal box is fixedly connected to the top surface of the mounting plate, an air supply pipe is connected between one side of the dust removal box and the upper part of the interior of the drying box, a partition is fixedly connected to the interior of the dust removal box longitudinally, and through holes are symmetrically provided on the partition, a mounting ring is symmetrically fixedly sleeved on one side of the partition close to the air supply pipe, a plurality of support rods are fixedly connected to the side wall of the mounting ring, a dust removal bag is slidably sleeved on the outer wall of the support rod, and the opening of the dust removal bag is fixedly sleeved on the outer wall of the mounting ring, a suction fan is installed on the top surface of the dust removal box, the air outlet of the suction fan is fixedly connected to a connecting pipe, and the end of the connecting pipe is connected to the air inlet of the hot air blower.
[0007] Preferably, support rings are symmetrically and fixedly sleeved on the outer walls of the plurality of support rods, and the outer walls of the two support rings are slidably fitted on the inner walls of the dust removal bag.
[0008] Preferably, a vibration motor is fixedly sleeved on the rod wall of the support rod.
[0009] Preferably, a rectangular hole is opened on one side of the dust removal box, and a collection box is slidably connected inside the rectangular hole.
[0010] Preferably, the collecting box slidably connected in the rectangular hole slidably extends to below the two dust removal bags.
[0011] Preferably, the multiple air outlet holes on the top surface of the carrier plate are all fixedly connected with a one-way valve.
[0012] Preferably, a sealing ring is fixedly sleeved at the opening of the dust removal bag, and the inner wall of the sealing ring is sealingly fixedly sleeved on the outer wall of the mounting ring.
[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:
[0014] When the Chinese herbal medicine slices need to be dried in the hot air circulation oven, the Chinese herbal medicine slices are first passed into the drying box through the feed port on the top surface of the drying box, and then the hot air blower is started to heat the air and pass it into the inside of the carrier plate through the connecting pipe, and finally the air is sprayed into the Chinese herbal medicine slices in the drying box through the air outlet holes on the top surface of the carrier plate, so as to dry the Chinese herbal medicine slices, and at the same time, the suction fan is started to draw the air in the dust removal box into the inside of the connecting pipe through the suction fan, so that negative pressure is formed in the dust removal box and the air supply pipe, so that the air in the drying box and the blown debris are sucked into the dust removal box through the air supply pipe. Inside the box, thanks to the fact that the dust removal box is fixedly connected with a partition and the partition is symmetrically provided with through holes, the air sucked from the inside of the drying box into the dust removal box must pass through the through holes to enter the inside of the suction fan and the connecting pipe. At this time, because the through hole is fixedly connected to the side close to the air supply pipe with a mounting ring, a support rod and a dust bag, the air sucked out from the inside of the drying box will be filtered by two dust bags before passing through the through holes, thereby effectively filtering the Chinese medicine pieces debris in the air through the dust bags, and then the filtered air will be input into the hot air blower again through the connecting pipe. Compared with the prior art, the device can effectively deal with the debris generated when the Chinese medicine pieces are dried, thereby effectively improving the quality of the finished products of the Chinese medicine pieces. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the connection between the suction fan and the connecting pipe in the utility model;
[0018] Figure 3 It is a three-dimensional cross-sectional view of the drying box in the utility model;
[0019] Figure 4 It is a schematic diagram of the internal structure of the dust removal box in the utility model.
[0020] Description of reference numerals:
[0021] In the figure: 1. bottom plate; 2. bearing plate; 3. drying box; 4. motor; 5. stirring rod; 6. hot air blower; 7. pipe; 8. air outlet; 9. vertical plate; 10. mounting plate; 11. dust removal box; 12. partition; 13. through hole; 14. mounting ring; 15. support rod; 16. dust removal bag; 17. suction fan; 18. connecting pipe; 19. support ring; 20. vibration motor; 21. rectangular hole; 22. collection box; 23. air supply pipe. DETAILED DESCRIPTION
[0022] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.
[0023] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.
[0024] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.
[0025] like Figures 1 to 4The main structure of a hot air circulation oven shown is a bottom plate 1, and a carrying plate 2 is fixedly connected to the top surface of the bottom plate 1. Thanks to the setting of the bottom plate 1, the stability of the carrying plate 2 and the drying box 3 on the carrying plate 2 can be effectively improved through the bottom plate 1, and the top surface of the carrying plate 2 is fixedly connected to the drying box 3, and the top surface of the drying box 3 is fixedly connected to a motor 4. The rotating shaft of the motor 4 rotates and extends to the inside of the drying box 3 and is fixedly connected to a stirring rod 5. By starting the motor 4, the stirring rod 5 can be driven to stir the Chinese herbal medicine slices, thereby greatly improving the contact area between the Chinese herbal medicine slices and the hot air, thereby effectively improving the drying efficiency of the Chinese herbal medicine slices, and the top surface of the bottom plate 1 is fixedly connected to a hot air blower 6, the carrying plate 2 is hollow, and the top surface of the carrying plate 2 is provided with an air outlet 8, and the insides of the multiple air outlet holes 8 provided on the top surface of the carrying plate 2 are all fixedly connected with a one-way valve, thanks to the one-way valve installed in the air outlet hole 8, so as to effectively prevent the debris in the Chinese herbal medicine slices from falling into the inside of the carrying plate 2 through the air outlet hole 8;
[0026] A pipe 7 is provided between the air outlet of the hot air blower 6 and the bearing plate 2, a vertical plate 9 is symmetrically fixedly connected to the top surface of the bottom plate 1, a mounting plate 10 is fixedly connected between the two vertical plates 9, and the two vertical plates 9 are located on both sides of the hot air blower 6 and the mounting plate 10 is located on the top surface of the hot air blower 6, a dust removal box 11 is fixedly connected to the top surface of the mounting plate 10, an air delivery pipe 23 is connected between one side of the dust removal box 11 and the upper part of the interior of the drying box 3, a partition 12 is fixedly connected to the interior of the dust removal box 11 in the longitudinal direction, and the partition 12 A through hole 13 is symmetrically provided on the upper side, a mounting ring 14 is symmetrically fixedly sleeved on one side of the partition 12 close to the gas delivery pipe 23, a plurality of support rods 15 are fixedly connected to the side wall of the mounting ring 14, a dust bag 16 is slidably sleeved on the outer wall of the support rod 15, and the opening of the dust bag 16 is fixedly sleeved on the outer wall of the mounting ring 14, a suction fan 17 is installed on the top surface of the dust removal box 11, and a connecting pipe 18 is fixedly connected to the air outlet of the suction fan 17, and the end of the connecting pipe 18 is connected to the air inlet of the hot air blower 6;
[0027] A plurality of support rods 15 are symmetrically and fixedly sleeved on the outer walls of the support rings 19, and the outer walls of the two support rings 19 are slidably fitted on the inner walls of the dust bag 16. A sealing ring is fixedly sleeved at the opening of the dust bag 16, and the inner wall of the sealing ring is sealed and fixedly sleeved on the outer wall of the mounting ring 14. Thanks to the arrangement of the mounting ring 14, the inner wall of the dust bag 16 can be further supported, thereby preventing the dust bag 16 from wrinkling during use, thereby affecting the filtering effect of the dust bag 16. The suction fan 17 draws the air in the dust box 11 into the interior of the connecting pipe 18, thereby forming a negative pressure in the dust box 11 and the air supply pipe 23, thereby sucking the air in the drying box 3 and the blown debris through the air supply pipe 23. To the inside of the dust removal box 11, at this time, thanks to the partition 12 fixedly connected to the inside of the dust removal box 11 and the through holes 13 symmetrically opened on the partition 12, the air sucked from the inside of the drying box 3 into the dust removal box 11 must pass through the through holes 13 to enter the inside of the suction fan 17 and the connecting pipe 18. At this time, because the through hole 13 is fixedly connected to the side close to the air supply pipe 23, the installation ring 14, the support rod 15 and the dust bag 16 are set, so that the air sucked out from the inside of the drying box 3 will be filtered by the two dust bags 16 before passing through the through hole 13, so that the Chinese medicine pieces in the air are effectively filtered by the dust bags 16, and then the filtered air will be input into the hot air blower 6 again through the connecting pipe;
[0028] A vibration motor 20 is fixedly sleeved on the rod wall of the support rod 15, and a rectangular hole 21 is opened on one side of the dust removal box 11. A collecting box 22 is slidably connected to the inside of the rectangular hole 21. The collecting box 22 slidably connected in the rectangular hole 21 slides and extends to the bottom of the two dust removal bags 16. Thanks to the arrangement of the vibration motor 20 and the collecting box 22, when there is too much dust accumulated on the side walls of the dust removal bags 16 and too much debris in the Chinese herbal medicine slices, the vibration motor 20 is started first, and the vibration motor 20 drives the support rod 15 and the dust removal bags 16 to vibrate, thereby effectively shaking the debris on the side walls of the dust removal bags 16 into the inside of the collecting box 22, thereby effectively cleaning the debris accumulated on the dust removal bags 16.
[0029] How it works
[0030] When the hot air circulation oven is in use, the Chinese herbal medicine slices are first passed into the interior of the drying box 3 through the feed port opened on the top surface of the drying box 3, and then the hot air blower 6 fixedly installed on the top surface of the bottom plate 1 is started to heat the air and pass the air into the interior of the supporting plate 2 through the pipeline 7 connected between the hot air blower 6 and the supporting plate 2, and finally the air is sprayed into the Chinese herbal medicine slices in the drying box 3 through the multiple air outlet holes 8 opened on the top surface of the supporting plate 2. At this time, thanks to the one-way valve installed in the air outlet hole 8, the debris in the Chinese herbal medicine slices can be effectively prevented from falling into the interior of the supporting plate 2 through the air outlet hole 8, so as to dry the Chinese herbal medicine slices. At the same time, the suction fan 17 fixedly installed on one side of the top surface of the dust removal box 11 is started, and the air in the dust removal box 11 is sucked into the interior of the connecting pipe 18 by the suction fan 17, so that the dust removal box 11 and the air supply pipe 23 form a Negative pressure is created, thereby sucking the air inside the drying box 3 and the blown debris into the dust removal box 11 through the air supply pipe 23. At this time, thanks to the fact that the dust removal box 11 is fixedly connected with the partition 12 and the partition 12 is symmetrically provided with through holes 13, the air sucked from the drying box 3 into the dust removal box 11 must pass through the through holes 13 to enter the interior of the suction fan 17 and the connecting pipe 18. At this time, because the through hole 13 is fixedly connected to the side close to the air supply pipe 23 with the installation ring 14, the support rod 15 and the dust bag 16, the air sucked out from the drying box 3 will be filtered by the two dust bags 16 before passing through the through hole 13, thereby effectively filtering the Chinese herbal medicine debris in the air through the dust bags 16, and then the filtered air will be input into the hot air blower 6 again through the connecting pipe.
[0031] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".
[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A hot air circulation oven, comprising a hot air circulation oven installation base plate (1), a bearing plate (2) and a drying box (3), characterized in that: The top surface of the bottom plate (1) is fixedly connected to a hot air blower (6); the bearing plate (2) is hollow and an air outlet (8) is provided on the top surface of the bearing plate (2); a pipe (7) is provided between the air outlet of the hot air blower (6) and the bearing plate (2); the top surface of the bottom plate (1) is symmetrically fixedly connected to a vertical plate (9); and a mounting plate (10) is fixedly connected between the two vertical plates (9); The top surface of the mounting plate (10) is fixedly connected to a dust removal box (11), one side of the dust removal box (11) is connected to the upper part of the interior of the drying box (3) by an air supply pipe (23), the interior of the dust removal box (11) is longitudinally fixedly connected to a partition (12), and the partition (12) is symmetrically provided with through holes (13), and a mounting ring (14) is symmetrically fixedly sleeved on one side of the partition (12) close to the air supply pipe (23), and the mounting ring (14) is A plurality of support rods (15) are fixedly connected to the side wall of the dust removal box (4), a dust bag (16) is slidably sleeved on the outer wall of the support rod (15), and the opening of the dust bag (16) is fixedly sleeved on the outer wall of the mounting ring (14), a suction fan (17) is installed on the top surface of the dust removal box (11), the air outlet of the suction fan (17) is fixedly connected to a connecting pipe (18), and the end of the connecting pipe (18) is connected to the air inlet of the hot air blower (6).
2. A hot air circulation oven according to claim 1, characterized in that: A plurality of support rings (19) are symmetrically fixedly sleeved on the outer walls of the support rods (15), and the outer walls of the two support rings (19) are slidably fitted to the inner wall of the dust removal bag (16).
3. A hot air circulation oven according to claim 1, characterized in that: A vibration motor (20) is fixedly sleeved on the rod wall of the support rod (15).
4. A hot air circulation oven according to claim 3, characterized in that: A rectangular hole (21) is provided on one side of the dust removal box (11), and a collection box (22) is slidably connected inside the rectangular hole (21).
5. A hot air circulation oven according to claim 4, characterized in that: The collecting box (22) slidably connected in the rectangular hole (21) slidably extends to below the two dust removal bags (16).
6. A hot air circulation oven according to claim 1, characterized in that: A check valve is fixedly connected inside each of the plurality of air outlet holes (8) provided on the top surface of the bearing plate (2).
7. A hot air circulation oven according to claim 1, characterized in that: A sealing ring is fixedly sleeved at the opening of the dust removal bag (16), and the inner wall of the sealing ring is sealingly fixedly sleeved on the outer wall of the mounting ring (14).