Multi-layer tunnel type microwave drying oven

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By introducing the design of exhaust fans and gas dehumidifiers in the multi-layer tunnel microwave drying box, the problem of increased energy consumption caused by the hot and humid gas not being recovered and filtered is solved, and uniform heating of materials and energy saving are achieved.

CN223361052UActive Publication Date: 2025-09-19NANJING YANZHENG DRYING EQUIP CO LTD

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Patent Information

Application Number: CN202422547390.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-10-22
Publication Date: 2025-09-19
Estimated Expiration: 2034-10-22

AI Technical Summary

Technical Problem

The hot and humid gas generated by the existing multi-layer tunnel microwave drying oven during the drying process is not recovered and filtered, resulting in increased energy consumption.

Method used

A multi-layer tunnel microwave drying oven is designed. The hot and humid gas is extracted by an exhaust fan and then reintroduced into the drying oven after being treated by a gas dehumidifier. The conveyor belt and magnetron are combined to uniformly heat the material.

Benefits of technology

It effectively reduces energy consumption, achieves uniform heating of materials, and improves drying efficiency.

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Abstract

The utility model provides a multi-layer tunnel type microwave drying oven, which relates to the technical field of microwave drying ovens and comprises a multi-layer tunnel type microwave drying oven body, one side of the multi-layer tunnel type microwave drying oven body is provided with a lead-in port close to the top, and the other side of the multi-layer tunnel type microwave drying oven body is provided with a lead-out port close to the bottom. A first supporting frame, a second supporting frame and a third supporting frame are arranged in the multi-layer tunnel type microwave drying oven body from top to bottom, a plurality of guiding-out pipes are arranged on the back face of the multi-layer tunnel type microwave drying oven body from top to bottom, and damp and hot gas in the multi-layer tunnel type microwave drying oven body is pumped out through work of an exhaust fan. After the gas is treated by the gas dehumidifier, moisture in the gas is removed, and then the gas is guided into the multilayer tunnel type microwave drying oven body again through the guide-in pipe, so that the problem that the energy consumption is increased is solved.

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Description

Technical Field

[0001] The utility model relates to the technical field of microwave drying ovens, in particular to a multi-layer tunnel type microwave drying oven. Background Art

[0002] Raw materials or semi-finished products must go through a drying process to remove all or part of the moisture or solvent and meet the process humidity requirements before subsequent processing can be carried out. Therefore, the performance of the drying oven determines the drying quality of the medicinal materials.

[0003] When drying various materials, hot and humid gases are generated. Existing multi-layer tunnel-type microwave drying ovens generally discharge the hot and humid gases to the outside through exhaust fans without recycling or filtering them. This causes the interior of the drying oven to be continuously heated to maintain internal temperature balance, thereby increasing energy consumption. Therefore, we propose a multi-layer tunnel-type microwave drying oven. Utility Model Content

[0004] The purpose of the present invention is to provide a multi-layer tunnel type microwave drying oven to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A multi-layer tunnel-type microwave drying oven comprises a multi-layer tunnel-type microwave drying oven body, wherein an inlet is provided on one side of the multi-layer tunnel-type microwave drying oven body near the top, and an outlet is provided on the other side of the multi-layer tunnel-type microwave drying oven body near the bottom. A first support frame, a second support frame, and a third support frame are respectively provided inside the multi-layer tunnel-type microwave drying oven body from top to bottom. A plurality of outlet pipes are provided on the back side of the multi-layer tunnel-type microwave drying oven body from top to bottom, and a plurality of inlet pipes are provided on the front side of the multi-layer tunnel-type microwave drying oven body from top to bottom. One end of the plurality of outlet pipes is connected to an exhaust fan, and an output end of the exhaust fan is connected to a gas dehumidifier.

[0007] As a preferred solution of the present invention, conveyor belts are provided on the tops of the first support frame, the second support frame and the third support frame.

[0008] The technical effect of adopting the above-mentioned further scheme is: the material is introduced into the multi-layer tunnel-type microwave drying oven body from the conveyor belt on the first support rack, and as the conveyor belt on the first support rack rolls, the material falls onto the conveyor belt on the second support rack, and the conveyor belt on the second support rack rotates in the opposite direction, causing the material to fall onto the conveyor belt on the third support rack. When the material is transmitted from the conveyor belts on the first support rack, the second support rack and the third support rack in sequence, the spatial position of the material is changed, and the material is better heated.

[0009] As a preferred solution of the present invention, a plurality of magnetrons are provided on the front and back sides of the multi-layer tunnel-type microwave drying box body and are located above the conveyor belt.

[0010] The technical effect of adopting the above further solution is that when the material is transported on the conveyor belts on the first support frame, the second support frame and the third support frame, the material passes through multiple magnetrons, so that the material is heated more evenly.

[0011] As a preferred solution of the present invention, one end of the gas dehumidifier is connected to the inlet pipe.

[0012] The technical effect of adopting the above further scheme is: the hot and humid gas inside the multi-layer tunnel-type microwave drying oven body is extracted by the exhaust fan, and after being treated by the gas dehumidifier, the moisture in the gas is removed, and then the gas is re-introduced into the multi-layer tunnel-type microwave drying oven body through the inlet pipe, thereby reducing energy consumption.

[0013] As a preferred solution of the present invention, a plurality of observation windows are provided on the front side of the multi-layer tunnel-type microwave drying oven body.

[0014] The technical effect of adopting the above further solution is: the situation of the materials inside the multi-layer tunnel-type microwave drying oven body can be observed through the observation window.

[0015] As a preferred solution of the present invention, a controller for controlling various electrical components is installed on the front side wall of the multi-layer tunnel-type microwave drying oven body.

[0016] The technical effect of adopting the above further solution is that the staff can conveniently operate and control the various electrical components of the entire device through the controller, making it easy to use.

[0017] As a preferred solution of the present invention, a fixing frame is fixedly connected to the bottom of the multi-layer tunnel-type microwave drying oven body.

[0018] The technical effect of adopting the above further solution is that the multi-layer tunnel-type microwave drying oven body can work more stably through the fixing frame.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In the present invention, the hot and humid gas inside the multi-layer tunnel type microwave drying oven body is extracted by the exhaust fan, and after being processed by the gas dehumidifier, the moisture in the gas is removed, and then the gas is re-introduced into the multi-layer tunnel type microwave drying oven body through the inlet pipe, thereby solving the problem of increased energy consumption.

[0021] 2. In the utility model, the material is introduced into the interior of the multi-layer tunnel-type microwave drying oven body from the conveyor belt on the first support frame. As the conveyor belt on the first support frame rolls, the material falls onto the conveyor belt on the second support frame. The conveyor belt on the second support frame rotates in the opposite direction, causing the material to fall onto the conveyor belt on the third support frame. As the material is transmitted from the conveyor belts on the first support frame, the second support frame and the third support frame in sequence, the spatial position of the material is changed, and the material is better heated. Through multiple magnetrons, the material is heated more evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a multi-layer tunnel-type microwave drying oven provided by the utility model;

[0023] Figure 2 A schematic diagram of the internal structure of a multi-layer tunnel-type microwave drying oven provided by the present invention;

[0024] Figure 3 A schematic side view of the planar internal structure of a multi-layer tunnel-type microwave drying oven provided by the present invention;

[0025] Figure 4 This is an enlarged schematic diagram of the structure of zone A of a multi-layer tunnel-type microwave drying oven provided by the utility model.

[0026] Legend: 1. Multi-layer tunnel-type microwave drying oven body; 101. Inlet; 102. Outlet; 2. First support frame; 201. Second support frame; 202. Third support frame; 3. Outlet pipe; 301. Inlet pipe; 302. Exhaust fan; 303. Gas dehumidifier; 4. Conveyor belt; 401. Magnetron; 5. Observation window; 6. Controller; 7. Fixing frame. DETAILED DESCRIPTION

[0027] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to relevant references, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Example

[0031] like Figure 1-4 As shown, the utility model provides a technical solution: a multi-layer tunnel type microwave drying oven, comprising a multi-layer tunnel type microwave drying oven body 1, an inlet 101 is provided on one side of the multi-layer tunnel type microwave drying oven body 1, and an outlet 102 is provided on the other side of the multi-layer tunnel type microwave drying oven body 1, and a first support frame 2, a second support frame 201 and a third support frame 202 are provided inside the multi-layer tunnel type microwave drying oven body 1 from top to bottom, and a conveyor belt 4 is provided on the top of the first support frame 2, the second support frame 201 and the third support frame 202. The material is introduced from the conveyor belt 4 on the first support frame 2 into the interior of the multi-layer tunnel type microwave drying oven body 1, and the material is transported along the conveyor belt 4 on the first support frame 2. 4 rolls, causing the material to fall onto the conveyor belt 4 on the second support frame 201, and the conveyor belt 4 on the second support frame 201 rotates in the opposite direction, causing the material to fall onto the conveyor belt 4 on the third support frame 202. When the material is sequentially transmitted from the first support frame 2, the second support frame 201 and the conveyor belt 4 on the third support frame 202, the spatial position of the material is changed, and the heating is better performed. A plurality of magnetrons 401 are provided on the front and back sides of the multi-layer tunnel-type microwave drying oven body 1 and are located above the conveyor belt 4. When the material is transmitted from the conveyor belt 4 on the first support frame 2, the second support frame 201 and the third support frame 202, the material passes through the plurality of magnetrons 401, so that the material obtains a more uniform heating effect. Example

[0032] like Figure 1-4As shown, a multi-layer tunnel type microwave drying oven is provided with a plurality of outlet pipes 3 from top to bottom on the back of the multi-layer tunnel type microwave drying oven body 1, and a plurality of inlet pipes 301 are provided on the front of the multi-layer tunnel type microwave drying oven body 1 from top to bottom. One end of the plurality of outlet pipes 3 is connected to an exhaust fan 302, and the output end of the exhaust fan 302 is connected to a gas dehumidifier 303, and one end of the gas dehumidifier 303 is connected to the inlet pipe 301. The exhaust fan 302 is operated to extract the hot and humid gas inside the multi-layer tunnel type microwave drying oven body 1, and after being processed by the gas dehumidifier 303, the moisture in the gas is removed, and then the gas is re-introduced into the multi-layer tunnel type microwave drying oven body 1 through the inlet pipe 301. Inside the tunnel-type microwave drying oven body 1, in order to reduce energy consumption, a plurality of observation windows 5 are provided on the front of the multi-layer tunnel-type microwave drying oven body 1, through which the condition of the material inside the multi-layer tunnel-type microwave drying oven body 1 can be observed. A controller 6 for controlling various electrical components is installed on the front side wall of the multi-layer tunnel-type microwave drying oven body 1. The staff can operate and control various electrical components of the entire device through the controller 6, which is convenient for use. A fixing bracket 7 is fixedly connected to the bottom of the multi-layer tunnel-type microwave drying oven body 1, which makes the multi-layer tunnel-type microwave drying oven body 1 work more stably.

[0033] The working process of the utility model is as follows: when using a multi-layer tunnel type microwave drying oven, an inlet 101 is provided on one side of the multi-layer tunnel type microwave drying oven body 1, and an outlet 102 is provided on the other side of the multi-layer tunnel type microwave drying oven body 1, and a first support frame 2, a second support frame 201 and a third support frame 202 are provided inside the multi-layer tunnel type microwave drying oven body 1 from top to bottom. A conveyor belt 4 is provided on the top of the first support frame 2, the second support frame 201 and the third support frame 202. The material is introduced from the conveyor belt 4 on the first support frame 2 into the interior of the multi-layer tunnel type microwave drying oven body 1, and the material is transported along the conveyor belt 4 on the first support frame 2. The material rolls and falls onto the conveyor belt 4 on the second support frame 201. The conveyor belt 4 on the second support frame 201 rotates in the opposite direction, causing the material to fall onto the conveyor belt 4 on the third support frame 202. When the material is sequentially transmitted from the first support frame 2, the second support frame 201 and the conveyor belt 4 on the third support frame 202, the spatial position of the material is changed, and the heating is better performed. A plurality of magnetrons 401 are arranged on the front and back sides of the multi-layer tunnel type microwave drying box body 1 and are located above the conveyor belt 4. When the material is transmitted from the conveyor belt 4 on the first support frame 2, the second support frame 201 and the third support frame 202, the material passes through the plurality of magnetrons 401. 01, so that the material can obtain a more uniform heating effect, the back of the multi-layer tunnel type microwave drying oven body 1 is provided with a plurality of outlet pipes 3 from top to bottom, and the front of the multi-layer tunnel type microwave drying oven body 1 is provided with a plurality of inlet pipes 301 from top to bottom. The outlet pipes 3 and the inlet pipes 301 are both connected to the interior of the multi-layer tunnel type microwave drying oven body 1. One end of the plurality of outlet pipes 3 is connected to the exhaust fan 302, and the exhaust fan 302 is used to extract the hot and humid gas inside the multi-layer tunnel type microwave drying oven body 1. The output end of the exhaust fan 302 is connected to the gas dehumidifier 303, and the exhaust fan 302 introduces the hot and humid gas into the gas dehumidifier 303. After being processed by the gas dehumidifier 303, The moisture in the gas is removed and then re-introduced into the interior of the multi-layer tunnel-type microwave drying oven body 1 through the inlet pipe 301, thereby reducing energy consumption. The front of the multi-layer tunnel-type microwave drying oven body 1 is provided with multiple observation windows 5, which are convenient for staff to observe the condition of the internal materials. The front side wall of the multi-layer tunnel-type microwave drying oven body 1 is installed with a controller 6 for controlling various electrical components. The staff can operate and control the various electrical components of the entire device through the controller 6, which is convenient for use. The bottom of the multi-layer tunnel-type microwave drying oven body 1 is fixedly connected to a fixing bracket 7, which makes the multi-layer tunnel-type microwave drying oven body 1 work more stably.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer tunnel type microwave drying oven, comprising a multi-layer tunnel type microwave drying oven body (1), characterized in that: An inlet (101) is provided on one side of the multi-layer tunnel-type microwave drying oven body (1) near the top, and an outlet (102) is provided on the other side of the multi-layer tunnel-type microwave drying oven body (1) near the bottom. A first support frame (2), a second support frame (201) and a third support frame (202) are provided inside the multi-layer tunnel-type microwave drying oven body (1) from top to bottom, respectively. A plurality of outlet pipes (3) are provided on the back side of the multi-layer tunnel-type microwave drying oven body (1) from top to bottom, and a plurality of inlet pipes (301) are provided on the front side of the multi-layer tunnel-type microwave drying oven body (1) from top to bottom. One end of the plurality of outlet pipes (3) is connected to an exhaust fan (302), and the output end of the exhaust fan (302) is connected to a gas dehumidifier (303).

2. A multi-layer tunnel type microwave drying oven according to claim 1, characterized in that: A conveyor belt (4) is provided on the top of each of the first support frame (2), the second support frame (201) and the third support frame (202).

3. A multi-layer tunnel type microwave drying oven according to claim 2, characterized in that: A plurality of magnetrons (401) are provided on the front and back sides of the multi-layer tunnel-type microwave drying box body (1) and are located above the conveyor belt (4).

4. The multi-layer tunnel type microwave drying oven according to claim 1, characterized in that: One end of the gas dehumidifier (303) is connected to the inlet pipe (301).

5. The multi-layer tunnel type microwave drying oven according to claim 1, characterized in that: The multi-layer tunnel-type microwave drying box body (1) is provided with a plurality of observation windows (5) on the front side.

6. The multi-layer tunnel type microwave drying oven according to claim 1, characterized in that: A controller (6) for controlling various electrical components is installed on the front side wall of the multi-layer tunnel-type microwave drying oven body (1).

7. The multi-layer tunnel type microwave drying oven according to claim 1, characterized in that: A fixing frame (7) is fixedly connected to the bottom of the multi-layer tunnel-type microwave drying box body (1).