Novel hot air circulating device

Abstract

The utility model discloses a novel hot air circulation device which comprises a box body, a first drying box and a second drying box are arranged in the box body, a middle air channel is arranged between the first drying box and the second drying box, and two sets of axial flow fans are arranged at the two ends of the middle air channel respectively. Peripheral air ducts are arranged on the outer sides of the first drying box and the second drying box and connected with a hot blast stove. A plurality of angular pipes are evenly distributed in the first drying box and the second drying box, and the two ends of each angular pipe are connected with the middle air duct and the peripheral air duct correspondingly. The two groups of axial flow fans blow oppositely to send hot air into the middle air duct, so that the hot air is diffused into the first drying box and the second drying box through the angular pipe network holes, then is converged into the peripheral air duct, is absorbed by the hot air furnace fan and returns to the hot air furnace to be heated again, and waste heat air is recycled. Hot air can penetrate through the grains in the whole drying box body, drying is more uniform, and synchronous dewatering and drying are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of grain drying, in particular to a novel hot air circulation device. Background Art

[0002] my country is a large agricultural country, growing a wide variety of grains with high yields. Freshly harvested grains need to be dried in time before they can be stored in warehouses. Every year, grains are wasted due to mold and deterioration caused by untimely drying. Grain dryer is one of the most widely used drying equipment at present, with the advantages of high versatility and good drying quality.

[0003] Grain dryers dry grains by blowing hot air at them. However, the volume of grains to be dried is large, which requires a large amount of heat energy. During drying, the hot air still has a certain residual temperature after being blown onto the grains. If it is discharged into the air, it will waste heat energy and affect the environment. Therefore, a new type of hot air circulation device is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a novel hot air circulation device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel hot air circulation device, comprising a box body and a base, wherein the box body is arranged at the upper end of the base, a first drying box and a second drying box are arranged inside the box body, an intermediate air duct is arranged between the first drying box and the second drying box, and two groups of axial flow fans are respectively arranged at both ends of the intermediate air duct;

[0006] The front of the machine base is provided with a hot air furnace outlet, and the hot air furnace outlet is connected to the axial flow fan;

[0007] The first drying box and the second drying box are provided with peripheral air ducts on the outside, and the peripheral air ducts are connected to the hot air furnace;

[0008] A plurality of angular tubes are evenly distributed inside the first drying box and the second drying box, and two ends of the angular tubes are respectively connected to the middle air duct and the peripheral air duct.

[0009] Preferably, a dehumidification fan is provided at the upper end of the box body, and the dehumidification fan is connected to the peripheral air duct.

[0010] Preferably, each group of axial flow fans is provided with three, and each axial flow fan is distributed up and down.

[0011] Preferably, the cross-section of the angular tube is V-shaped, and air-permeable mesh holes are provided on two end faces of the angular tube.

[0012] Preferably, thermal insulation cotton rock is provided on the periphery of the box body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model heats the air through a hot blast furnace, and then two groups of axial flow fans blow the hot air into the middle air duct, forcing the hot air to quickly diffuse into the first drying box and the second drying box through the angular pipe mesh holes, and then merge into the peripheral air duct, be absorbed by the hot blast furnace fan and return to the hot blast furnace for heating, and the residual hot air is recycled; in order to obtain high-quality circulating hot air, it is necessary to turn on the dehumidification fan for dehumidification after a period of drying; the first drying box, the second drying box and the two groups of opposite blowers are used to form an opposing response, forcing the air volume and air pressure in the drying box to be balanced, ensuring that the hot air can penetrate the grains in the entire drying box, drying more evenly, and achieving synchronous dehydration and drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the front view of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 It is a front view of the angular tube of the utility model.

[0018] In the figure: 1. Box body; 2. First drying box; 3. Second drying box; 4. Axial flow fan; 5. Dehumidification fan; 6. Middle air duct; 7. Angular tube; 8. External air duct; 9. Machine base; 10. Hot air furnace outlet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides a technical solution: a new hot air circulation device, including a box body 1 and a base 9, the box body 1 is arranged at the upper end of the base 9, the outer periphery of the box body 1 is provided with heat-insulating cotton rock, and the inside of the box body 1 is provided with a first drying box 2 and a second drying box 3;

[0021] Among them, the machine base 9 is used to support the box body 1, and the insulating cotton rock can insulate the box body 1, which can reduce the heat loss inside the box body 1 when drying grains. The first drying box 2 and the second drying box 3 are used to hold the grains that need to be dried.

[0022] An intermediate air duct 6 is provided between the first drying box 2 and the second drying box 3. Two groups of axial flow fans 4 are provided at both ends of the intermediate air duct 6. Each group of axial flow fans 4 has three fans, and each axial flow fan 4 is distributed up and down.

[0023] The first drying box 2 and the second drying box 3 are provided with an outer peripheral air duct 8 outside, and the outer peripheral air duct 8 is connected to the hot air furnace. The upper end of the box body 1 is provided with a dehumidification fan 5, and the dehumidification fan 5 is connected to the outer peripheral air duct 8;

[0024] A hot air furnace outlet 10 is provided on the front of the machine base 9 , and the hot air furnace outlet 10 is connected to the axial flow fan 4 .

[0025] The axial flow fan 4 is used to blow hot air to the middle air duct 6 inside the box 1, and the hot air furnace is used to heat the air and provide hot air for the axial flow fan 4. Moisture will be generated after the grains are dried, and the moisture can be discharged through the dehumidification fan 5, so that the residual hot air after drying the grains can continue to be recycled.

[0026] During drying, the hot air furnace heats the air and then two groups of axial flow fans 4 blow the hot air into the middle air duct 6, forcing the hot air to quickly diffuse through the mesh of the angular tube 7 to the inside of the first drying box 2 and the second drying box 3, and then merge into the outer air duct 8, be absorbed by the hot air furnace fan and return to the hot air furnace for heating, and the waste hot air is recycled, passing through the first drying box 2, the second drying box 3 and the two groups of blowers, forming an opposing response, forcing the air volume and pressure in the drying box body 1 to be balanced, ensuring that the hot air can penetrate the entire drying box body 1 The grains are dried more evenly and achieve synchronous dehydration and drying.

[0027] A plurality of angular tubes 7 are evenly distributed inside the first drying box 2 and the second drying box 3. The two ends of the angular tubes 7 are respectively connected to the middle air duct 6 and the outer air duct 8. The cross-section of the angular tubes 7 is V-shaped, and air-permeable meshes are provided on the two end faces of the angular tubes 7.

[0028] The hot air in the middle air duct 6 enters the first drying box 2 and the second drying box 3 through the angular tube 7, and is blown toward the grains through the air-permeable mesh holes on the angular tube 7 to dry the grains with hot air.

[0029] The working principle and use process of this utility model:

[0030] The device comprises a first drying box 2 and a second drying box 3, as well as two groups of opposing axial flow fans 4 and a group of dehumidification fans 5 which are opened and closed at a fixed time. During drying, the hot air furnace heats the air and then the two groups of axial flow fans 4 blow the hot air into the middle air duct 6, forcing the hot air to quickly diffuse into the first drying box 2 and the second drying box 3 through the mesh of the angular tube 7, and then merge into the outer air duct 8, where it is absorbed by the fan of the hot air furnace and returned to the hot air furnace for heating, and the waste hot air is recycled. In order to obtain high-quality circulating hot air, it is necessary to turn on the dehumidification fan 5 for dehumidification after a period of drying. The first drying box 2, the second drying box 3 and the two groups of opposing blowers are used to form an opposing response, forcing the air volume and pressure in the drying box body 1 to be balanced, ensuring that the hot air can penetrate the entire drying box body 1 and dry the grains more evenly, and achieve synchronous dehydration and drying.

[0031] 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 novel hot air circulation device, comprising a box body (1) and a base (9), wherein the box body (1) is arranged on the upper end of the base (9), and is characterized in that: A first drying box (2) and a second drying box (3) are provided inside the box body (1); an intermediate air duct (6) is provided between the first drying box (2) and the second drying box (3); and two groups of axial flow fans (4) are provided at both ends of the intermediate air duct (6); A hot air furnace outlet (10) is provided on the front of the machine base (9), and the hot air furnace outlet (10) is connected to the axial flow fan (4); The first drying box (2) and the second drying box (3) are provided with peripheral air ducts (8) on the outside, and the peripheral air ducts (8) are connected to the hot air furnace; A plurality of angular tubes (7) are evenly distributed inside the first drying box (2) and the second drying box (3), and the two ends of the angular tubes (7) are respectively connected to the middle air duct (6) and the peripheral air duct (8).

2. A novel hot air circulation device according to claim 1, characterized in that: A dehumidification fan (5) is provided at the upper end of the box body (1), and the dehumidification fan (5) is connected to the peripheral air duct (8).

3. A novel hot air circulation device according to claim 1, characterized in that: Each group of axial flow fans (4) is provided with three, and each axial flow fan (4) is distributed vertically.

4. A novel hot air circulation device according to claim 1, characterized in that: The cross-sectional shape of the angular tube (7) is V-shaped, and air-permeable mesh holes are provided on two end surfaces of the angular tube (7).

5. A novel hot air circulation device according to claim 1, characterized in that: The outer periphery of the box body (1) is provided with thermal insulation cotton rock.

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