Improved electric heating constant-temperature blast drying box

Abstract

The utility model belongs to the technical field of blast drying ovens, particularly relates to an improved electric heating constant-temperature blast drying oven, and aims to solve the problems that an inlet of an existing constant-temperature fan body is not provided with a dustproof structure, dust is generated when high hot air is fed into a heat collection box, dry materials are polluted, and uniform flow guide heating cannot be achieved. According to the scheme, the drying device comprises a drying box, four supporting legs are arranged at the bottom of the drying box, a plurality of exhaust holes are formed in the right side of the drying box, a box cover is rotationally installed on the front face of the drying box, two transverse rods are fixedly installed on the left side of the drying box, and the same constant-temperature box is installed on the two transverse rods; the bottom end of the constant-temperature box is open and is provided with a dustproof frame, and a dustproof net is arranged in the dustproof frame. The constant-temperature box is simple in structure, air is filtered through the dustproof net, dust is prevented from entering the constant-temperature box, and materials are evenly heated through air blowing of the multiple air outlets, so that the materials are evenly heated.

Description

Technical Field

[0001] The utility model relates to the technical field of blast drying ovens, in particular to an improved electric heating constant temperature blast drying oven. Background Art

[0002] In the detection of traditional Chinese medicine, the extract of traditional Chinese medicine is usually tested. Before preparing the extract of traditional Chinese medicine, the traditional Chinese medicine needs to be dried so that a large amount of water in the growth process is precipitated, and the internal hydrated crystals are destroyed, so that the traditional Chinese medicine is easier to release the active ingredients in the process of preparing the extract. When the traditional Chinese medicine sent for inspection is dried, it is mostly dried in an electric constant temperature blast drying oven. The public (announcement) number: CN210773146U discloses an electric constant temperature blast drying oven, including a blast drying oven body, an air outlet is provided at the top center of the blast drying oven body, a connecting pipe is installed at the port of the air outlet, an exhaust pipe is installed on the connecting pipe, and a placement plate is evenly distributed above and below the blast drying oven body, and air holes are evenly distributed on the placement plate. A constant temperature hot air blower body is installed on one side of the blast drying oven body, and the outlet port of the constant temperature hot air blower body is connected to the port of the air inlet. The constant temperature hot air blower is running, and the high-temperature air it produces is discharged into the collector box through the air inlet, and then discharged to each row of rows of holes evenly arranged front and back, and finally discharged horizontally to the mesh disk on the placement board through the outlets evenly arranged front and back on the left and right sides. Therefore, the Chinese medicine in the mesh disk can be directly blown by the high-temperature air, and the direct drying effect is better.

[0003] The inlet of the existing constant temperature fan body is not provided with a dustproof structure, and when the high-temperature air is sent into the interior of the heat collecting box, it will be accompanied by dust, which will pollute the dry materials and cannot be evenly guided for heating. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings that the inlet of the existing constant temperature fan body is not provided with a dustproof structure, and dust will be accompanied when the high-temperature air is sent into the interior of the heat collecting box, which will cause pollution to the dry materials and cannot be evenly guided for heating. An improved electric constant temperature blast drying box is proposed to solve the problems that the high-temperature air is not accompanied by dust when it is sent into the interior of the heat collecting box, and the high-temperature air is polluted.

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

[0006] An improved electric constant temperature blast drying box comprises a drying box, wherein four legs are arranged at the bottom of the drying box, a plurality of exhaust holes are arranged at the right side of the drying box, a box cover is rotatably installed at the front of the drying box, two transverse rods are fixedly installed at the left side of the drying box, a same constant temperature box is installed on the two transverse rods, the bottom end of the constant temperature box is open and provided with a dustproof frame, a dustproof net is arranged in the dustproof frame, a constant temperature heating mechanism is arranged in the constant temperature box, a uniform heating structure is connected to the constant temperature box, and the uniform heating structure is located on the inner wall of the drying box.

[0007] Preferably, a plurality of mounting grooves are provided on the top of the dustproof frame, magnet blocks are provided in each of the plurality of mounting grooves, a plurality of metal rods are fixedly installed on the bottom of the constant temperature box, the metal rods are inserted into the mounting grooves and attracted to the magnet blocks, so that the dustproof frame can be conveniently disassembled and assembled through the metal rods and the magnet blocks.

[0008] Preferably, the constant temperature heating mechanism includes a resistance wire and a fan, and the resistance wire and the fan are both arranged in a constant temperature box. The constant temperature box is provided with two guide plates, and the two guide plates are staggered. A temperature sensor is provided on the constant temperature box, and a controller is connected to the temperature sensor; the temperature sensor can monitor the temperature inside the constant temperature box, and the two guide plates are used to guide hot air, extend the airflow circulation time, and facilitate temperature control.

[0009] Preferably, the uniform heating structure includes a vertical tube, the vertical tube and the constant temperature box are connected by the same pipeline, a rectangular box is installed on the inner wall of the drying box, a plurality of air outlets are arranged on the inner side of the rectangular box, and a plurality of branch tubes are connected between the vertical tube and the rectangular box; hot air enters the rectangular box through the plurality of branch tubes, and the material is uniformly heated through the plurality of air outlets, so that the material is heated evenly.

[0010] Preferably, four support rods are fixedly installed in the drying box, the four support rods are symmetrically arranged in pairs, and the inner sides of the four support rods are all provided with notches. A plurality of placement plates are arranged in the drying box, and the placement plates cooperate with the corresponding notches; the positions of the plurality of placement plates can be adjusted.

[0011] In the utility model, the improved electric constant temperature blast drying oven has the following beneficial effects:

[0012] In this solution, the resistance wire converts electrical energy into heat energy, and the fan draws outside air into the constant temperature box, and the air is filtered through the dustproof net to prevent dust from entering the constant temperature box;

[0013] In this scheme, the resistance wire heats the air, and the temperature sensor can monitor the temperature inside the constant temperature box. The two guide plates are used to guide the hot air, prolong the air flow time, and facilitate temperature control. The constant temperature airflow enters the vertical pipe through the pipeline, and then enters the rectangular box through multiple branch pipes. The material is evenly heated through multiple air outlets, so that the material is heated evenly;

[0014] The utility model has a simple structure, filters air through a dustproof net to prevent dust from entering the constant temperature box, and blows air evenly to heat the material through a plurality of air outlets, so that the material is heated evenly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the improved electric constant temperature blast drying oven proposed by the utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the improved electric constant temperature blast drying oven proposed by the utility model;

[0017] Figure 3 The utility model provides an improved electric constant temperature blast drying oven. Figure 2 Schematic diagram of the structure of part A in FIG.

[0018] Figure 4 This is a three-dimensional structural diagram of the dustproof frame and dustproof net proposed in the utility model;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the support rod proposed by the utility model.

[0020] In the figure: 1. Drying box; 2. Box cover; 3. Support rod; 4. Notch; 5. Placement plate; 6. Rectangular box; 7. Air outlet; 8. Vertical pipe; 9. Branch pipe; 10. Pipe; 11. Constant temperature box; 12. Temperature sensor; 13. Controller; 14. Guide plate; 15. Resistance wire; 16. Fan; 17. Dustproof frame; 18. Dustproof net; 19. Installation slot; 20. Metal rod; 21. Magnet block; 22. Horizontal rod. DETAILED DESCRIPTION

[0021] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments.

[0022] Embodiment 1

[0023] Reference Figure 1-Figure 5 An improved electric constant temperature blast drying box includes a drying box 1. Four legs are provided at the bottom of the drying box 1. A plurality of exhaust holes are provided on the right side of the drying box 1. A box cover 2 is installed on the front of the drying box 1 through a hinge. Two transverse rods 22 are fixedly installed on the left side of the drying box 1. The same constant temperature box 11 is installed on the two transverse rods 22. The bottom end of the constant temperature box 11 is open and provided with a dustproof frame 17. A dustproof net 18 is provided in the dustproof frame 17. A constant temperature heating mechanism is provided in the constant temperature box 11. A uniform heating structure is connected to the constant temperature box 11. The uniform heating structure is located on the inner wall of the drying box 1.

[0024] In this embodiment, a plurality of mounting grooves 19 are provided on the top of the dustproof frame 17, and magnet blocks 21 are provided in each of the plurality of mounting grooves 19. A plurality of metal rods 20 are fixedly installed on the bottom of the constant temperature box 11, and the metal rods 20 are inserted into the mounting grooves 19 and attracted to the magnet blocks 21, so that the dustproof frame 17 can be conveniently disassembled and assembled through the metal rods 20 and the magnet blocks 21.

[0025] In this embodiment, the constant temperature heating mechanism includes a resistance wire 15 and a fan 16, and the resistance wire 15 and the fan 16 are both arranged in a constant temperature box 11. The constant temperature box 11 is provided with two guide plates 14, and the two guide plates 14 are staggered. A temperature sensor 12 is provided on the constant temperature box 11, and a controller 13 is connected to the temperature sensor 12; the temperature sensor 12 can monitor the temperature inside the constant temperature box 11, and the two guide plates 14 are used to guide hot air, extend the airflow circulation time, and facilitate temperature control.

[0026] In this embodiment, the uniform heating structure includes a vertical tube 8, and the same pipe 10 is connected between the vertical tube 8 and the constant temperature box 11. A rectangular box 6 is installed on the inner wall of the drying box 1, and a plurality of air outlets 7 are arranged on the inner side of the rectangular box 6. A plurality of branch pipes 9 are connected between the vertical tube 8 and the rectangular box 6; hot air enters the rectangular box 6 through the plurality of branch pipes 9, and the material is uniformly heated through the plurality of air outlets 7, so that the material is heated evenly.

[0027] In this embodiment, four support rods 3 are fixedly installed in the drying box 1. The four support rods 3 are symmetrically arranged in pairs. Notches 4 are opened on the inner sides of the four support rods 3. A plurality of placement plates 5 are arranged in the drying box 1. The placement plates 5 cooperate with the corresponding notches 4. The positions of the plurality of placement plates 5 can be adjusted.

[0028] Working principle: when in use, turn on the power supply and PLC controller to control the electrical appliances. The prior art will not be elaborated here. Place the material on the top of the placement plate 5, then close the box cover 2, start the resistance wire 15 and the fan 16, the resistance wire 15 converts electrical energy into thermal energy, the fan 16 draws the outside air into the constant temperature box 11, and filters the air through the dustproof net 18 to prevent dust from entering the constant temperature box 11. The resistance wire 15 heats the air, and the temperature sensor 12 can monitor the temperature inside the constant temperature box 11. The two guide plates 14 are used to guide the hot air, extend the air flow time, and facilitate temperature control. The constant temperature airflow enters the vertical pipe 8 through the pipe 10, and then enters the rectangular box 6 through multiple branch pipes 9. The material is evenly heated through multiple air outlets 7, so that the material is heated evenly.

[0029] Embodiment 2

[0030] The difference between Example 2 and Example 1 is that a plurality of ventilation holes are provided on the top of the placement plate 5 for ventilation during drying, and a magnetic strip is provided on the inner side of the placement plate 5, which attracts the inner wall of the drying box 1 to improve the stability of the placement of the placement plate 5. This application includes all structural shapes, sizes and materials of Example 1, which can be selected and adjusted to meet specific usage conditions. The accompanying drawings are all schematic structural diagrams, and the specific actual sizes can be appropriately adjusted.

[0031] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.

Claims

1. An improved electric constant temperature blast drying oven, comprising a drying oven (1), wherein the bottom of the drying oven (1) is provided with four legs, the right side of the drying oven (1) is provided with a plurality of exhaust holes, and the front of the drying oven (1) is rotatably provided with a box cover (2), characterized in that: Two transverse bars (22) are fixedly mounted on the left side of the drying box (1), and a constant temperature box (11) is mounted on the two transverse bars (22). The bottom end of the constant temperature box (11) is open and is provided with a dustproof frame (17). A dustproof net (18) is arranged inside the dustproof frame (17). A constant temperature heating mechanism is arranged inside the constant temperature box (11). A uniform heating structure is connected to the constant temperature box (11), and the uniform heating structure is located on the inner wall of the drying box (1).

2. The improved electric constant temperature blast drying oven according to claim 1 is characterized in that: The top of the dustproof frame (17) is provided with a plurality of mounting grooves (19), each of which is provided with a magnet block (21); the bottom of the thermostatic box (11) is fixedly provided with a plurality of metal rods (20), the metal rods (20) are inserted into the mounting grooves (19) and attracted to the magnet blocks (21).

3. The improved electric constant temperature blast drying oven according to claim 1 is characterized in that: The constant temperature heating mechanism comprises a resistance wire (15) and a fan (16), wherein the resistance wire (15) and the fan (16) are both arranged in a constant temperature box (11), and the constant temperature box (11) is provided with two guide plates (14), and the two guide plates (14) are arranged in a staggered manner.

4. The improved electric constant temperature blast drying oven according to claim 1 is characterized in that: The constant temperature box (11) is provided with a temperature sensor (12), and the temperature sensor (12) is connected to a controller (13).

5. The improved electric constant temperature blast drying oven according to claim 1 is characterized in that: The uniform heating structure comprises a vertical tube (8), the vertical tube (8) and the constant temperature box (11) are connected by a same pipe (10), a rectangular box (6) is installed on the inner wall of the drying box (1), a plurality of air outlets (7) are arranged on the inner side of the rectangular box (6), and a plurality of branch pipes (9) are connected between the vertical tube (8) and the rectangular box (6).

6. The improved electric constant temperature blast drying oven according to claim 1 is characterized in that: Four support rods (3) are fixedly installed in the drying box (1), the four support rods (3) are symmetrically arranged in pairs, and the inner sides of the four support rods (3) are all provided with notches (4). A plurality of placement plates (5) are arranged in the drying box (1), and the placement plates (5) are matched with corresponding notches (4).

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