Mesh belt auxiliary heating equipment

Abstract

The utility model discloses a mesh belt auxiliary heating device which comprises a machine box, one side of the machine box is provided with an air pipe and mesh belt air supplementing openings communicated with the air pipe, a heat exchange air box is arranged in the middle of the interior of the machine box, and multiple stages of heating grooves are formed in the bottom of the interior of the machine box. Lower baffles and upper baffles which are arranged in a staggered mode are arranged at the bottom and the top of the multi-stage heating groove, a heat exchanger is arranged in the heat exchange air box, and the heat exchanger extends into the multi-stage heating groove and is provided with a heat exchange pipe; by means of the heat exchange structure of the heat exchange air box and the heat exchanger, cold air of the mesh belt air supplementing opening can be preliminarily heated conveniently, multi-stage heating is conducted through cooperation of the lower baffles, the heat exchange pipes and the upper baffles in the multi-stage heating groove, and therefore the internal heating path of the heat exchange equipment is prolonged, and the heat exchange efficiency is improved. Therefore, the uniform heating treatment effect of cold air is improved, heating airflow is promoted to achieve the auxiliary heating purpose and is discharged out of the mesh belt air supplementing opening, and the drying efficiency of mesh belt conveying materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a mesh belt auxiliary heating equipment. Background Art

[0002] The mesh belt dryer uses the mesh belt to move the material in the drying chamber to achieve mobile drying of the material. When the mesh belt is conveying, it is necessary to supplement the air flow with heat to ensure the drying effect of the material conveyed on the mesh belt;

[0003] The authorized patent number CN217005265U discloses an air energy mesh belt dryer with electric heating auxiliary heating function. The device mainly uses the induced draft fan to send the air in the chassis into the condenser. The condenser liquefies the water vapor in the air into water droplets, so that the air becomes dry. The dry air returns to the chassis, so that the air humidity value in the chassis will be reduced, reducing the internal consumption of the dryer and improving the drying efficiency of subsequent materials. However, when the device is actually used, it still has the following defects:

[0004] The above patent mainly returns the dry air to the chassis, so that the air humidity value in the chassis will be reduced, reducing the internal friction of the dryer. However, when the external conveying equipment transports the material, it is often transported together with the cold air, which leads to low thermal efficiency of the mesh belt, making it difficult to play an auxiliary heating role, thereby reducing the drying efficiency of the material transportation. Utility Model Content

[0005] The purpose of the utility model is to provide a mesh belt auxiliary heating device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mesh belt auxiliary heating device, comprising a chassis, one side of the chassis is respectively provided with an air duct and a mesh belt air supply port that are interconnected, a heat exchange wind box is provided at the middle position inside the chassis, a multi-stage heating tank is provided at the bottom inside the chassis, and the bottom and top of the multi-stage heating tank are arranged with staggered lower baffles and upper baffles, a heat exchanger is provided inside the heat exchange wind box, and the heat exchanger extends to the inside of the multi-stage heating tank and is provided with a heat exchange pipe;

[0007] One side of the heat exchange wind box is provided with an air guide groove interconnected with the multi-stage heating tank, and a first fan is provided inside the air guide groove, an air guide duct interconnected with the other side of the heat exchange wind box and the air duct is provided, a second fan opposite to the horizontal plane of the air guide duct is provided at the top of the air duct, an exhaust duct is provided at the bottom of one side of the air duct, and the exhaust duct is interconnected with the multi-stage heating tank, and a one-way valve is provided at the bottom of the exhaust duct.

[0008] Preferably, a water supply pump is provided on the top of the chassis, and a hot water supply pipe is provided at one end of the water supply pump. The heat exchange bellows and the water supply pump are interconnected, so as to heat and guide the airflow by means of hot water heat exchange.

[0009] Preferably, an oblique guide plate is provided inside the lower baffle, and the oblique guide plate is opposite to the vertical plane of the first fan and the air guide groove. The setting of the oblique guide plate increases the guiding property and dredging efficiency of the airflow.

[0010] Preferably, the heat exchange tube is arranged inside the multi-stage heating tank and the tail end passes through a liquid guide groove provided in the multi-stage heating tank. The heat exchange tube is located between multiple groups of staggered lower baffles and upper baffles. The setting of the multi-stage heating tank is utilized, so as to utilize the staggered baffle structure to extend the heating path and improve the heating efficiency.

[0011] Preferably, the one-way valve is arranged at the opening at the bottom of the exhaust duct, and the air duct and the exhaust duct are both connected to the mesh belt air supply port, so as to utilize the setting of the one-way valve to prevent the cold air flow from extending into the exhaust duct.

[0012] Preferably, the lower baffle exhausts air to the mesh belt air supply port through the exhaust pipe and the one-way valve, so as to facilitate the heated gas to be reintroduced into the mesh belt air supply port and transported together with the mesh belt.

[0013] The utility model provides a mesh belt auxiliary heating device, which has at least the following beneficial effects:

[0014] The heat exchange structure of the heat exchange bellows and the heat exchanger is used to facilitate the preliminary heating of the cold air at the mesh belt air supply port, and the lower baffle and heat exchange tube inside the multi-stage heating tank and the upper baffle structure are used to perform multi-stage heating, thereby extending the internal heating path of the heat exchange equipment, so as to improve the uniform heating treatment effect of the cold air, promote the heated airflow to achieve the auxiliary heating purpose and be discharged from the mesh belt air supply port, enhance the drying efficiency of the mesh belt conveyed material, and utilize the setting of the first fan and the second fan to make the circulation of hot and cold air flows more efficient and smooth in the auxiliary heating state, further enhancing the drying effect of material transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front cross-sectional view of the utility model;

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

[0017] Figure 3 It is a three-dimensional diagram of the multi-stage heating tank of the utility model.

[0018] In the figure: 1. Chassis; 2. Mesh belt air supply port; 3. Air duct; 4. Multi-stage heating tank; 5. Lower baffle; 6. Heat exchange tube; 7. Upper baffle; 8. First fan; 9. Heat exchange bellows; 10. Heat exchanger; 11. Air duct; 12. Second fan; 13. Exhaust duct; 14. One-way valve. 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 an embodiment: a mesh belt auxiliary heating device, including a chassis 1, one side of the chassis 1 is respectively provided with an air duct 3 and a mesh belt air supply port 2 that are interconnected, a heat exchange wind box 9 is provided at the middle position inside the chassis 1, a multi-stage heating tank 4 is provided at the bottom of the chassis 1, and the bottom and top of the multi-stage heating tank 4 are arranged with staggered lower baffles 5 and upper baffles 7, a heat exchanger 10 is provided inside the heat exchange wind box 9, and the heat exchanger 10 extends to the inside of the multi-stage heating tank 4 and is provided with a heat exchange pipe 6, a water supply pump is provided on the top of the chassis 1, and a hot water supply pipe is provided at one end of the water supply pump, and the heat exchange wind box 9 is interconnected with the water supply pump, so as to heat and guide the airflow by means of hot water heat exchange;

[0021] An air guide groove interconnected with the multi-stage heating tank 4 is provided on one side of the heat exchange wind box 9, and a first fan 8 is provided inside the air guide groove, an air guide duct 11 interconnected with the other side of the heat exchange wind box 9 and the air duct 3 is provided, a second fan 12 opposite to the horizontal plane of the air guide duct 11 is provided at the top of the air duct 3, an exhaust duct 13 is provided at the bottom of one side of the air duct 3, and the exhaust duct 13 is interconnected with the multi-stage heating tank 4, a one-way valve 14 is provided at the bottom of the exhaust duct 13, and the one-way valve 14 is arranged at the opening at the bottom of the exhaust duct 13, the air duct 3 and the exhaust duct 13 are both interconnected with the mesh belt air supply port 2, so as to prevent the cold air flow from extending into the exhaust duct 13 by using the setting of the one-way valve 14;

[0022] The lower baffle 5 exhausts air to the mesh belt air supply port 2 through the connection between the exhaust pipe 13 and the one-way valve 14, so as to facilitate the heated gas to be reintroduced into the mesh belt air supply port 2 and transported together with the mesh belt.

[0023] Embodiment 1, as Figure 1-2As shown, an inclined guide plate is provided inside the lower baffle 5, and the inclined guide plate is opposite to the vertical plane of the first fan 8 and the air guide groove. By utilizing the setting of the inclined guide plate, the primary heated air introduced into the lower baffle 5 can be pulled into the lower baffle 5, and by starting the fan, the airflow can quickly pass through the extended path set inside the lower baffle 5, thereby improving the uniform heating effect of the airflow and the heat exchange tube 6, and allowing the exhausted airflow to fully heat the mesh belt air supply port.

[0024] Embodiment 2, as Figure 1-3 As shown, the heat exchange tube 6 is arranged inside the multi-stage heating tank 4 and the tail end passes through the liquid guide groove provided in the multi-stage heating tank 4. The heat exchange tube 6 is located between multiple groups of staggered lower baffles 5 and upper baffles 7. The heat exchange tube 6 is arranged in an extended path formed by the staggered multiple groups of lower baffles 5 and upper baffles 7. When the airflow passes through this section of the path, the airflow fluctuates up and down and is fully in contact with the heating system for heat, which greatly improves the heating effect of the airflow.

[0025] Working principle: In this mesh belt auxiliary heating equipment;

[0026] When the material is conveyed by the mesh belt, the mesh belt air supply port 2 and the air duct 3 are connected to the chassis 1, so that by starting the second fan 12, the cold air in the mesh belt air supply port 2 is absorbed through the air duct 3 and introduced into the heat exchange wind box 9 from the air guide pipe 11. At this time, the one-way valve 14 is closed, and then the heat exchanger 10 and the heat exchange tube 6 can be started for heating, so as to heat the introduced cold air. By starting the first fan 8, the once heated air can be introduced into the multi-stage heating tank 4 for flow, and the staggered lower baffles 5 and upper baffles 7 are used to block and guide, so as to extend the heating path, promote the thermal contact rate between the airflow and the heat exchange tube 6, and make the air heating more efficient. When the hot air is discharged, the one-way valve 14 under the exhaust pipe 13 is opened, so that the heated airflow can be introduced into the mesh belt air supply port 2 through the air duct, forming an auxiliary heating function to heat and dry the material on the mesh belt.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0028] In the description of the present invention, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms connected and connected should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A mesh belt auxiliary heating device, comprising a chassis (1), characterized in that: An air duct (3) and a mesh belt air supply port (2) that are interconnected are respectively provided on one side of the chassis (1); a heat exchange wind box (9) is provided at a middle position inside the chassis (1); a multi-stage heating tank (4) is provided at the bottom of the chassis (1); lower baffles (5) and upper baffles (7) are arranged in a staggered manner at the bottom and top of the multi-stage heating tank (4); a heat exchanger (10) is provided inside the heat exchange wind box (9); and the heat exchanger (10) extends to the inside of the multi-stage heating tank (4) and is provided with a heat exchange pipe (6); One side of the heat exchange wind box (9) is provided with an air guide groove interconnected with the multi-stage heating tank (4), and a first fan (8) is provided inside the air guide groove; an air guide duct (11) interconnected with the other side of the heat exchange wind box (9) and the air duct (3); a second fan (12) is provided at the top of the air duct (3) and is opposite to the horizontal plane of the air guide duct (11); an exhaust duct (13) is provided at the bottom of one side of the air duct (3), and the exhaust duct (13) is interconnected with the multi-stage heating tank (4); and a one-way valve (14) is provided at the bottom of the exhaust duct (13).

2. A mesh belt auxiliary heating device according to claim 1, characterized in that: A water supply pump is provided on the top of the chassis (1), and a hot water supply pipe is provided at one end of the water supply pump. The heat exchange wind box (9) is in communication with the water supply pump.

3. The mesh belt auxiliary heating device according to claim 1, characterized in that: An oblique guide plate is provided inside the lower baffle (5), and the oblique guide plate is opposite to the first fan (8) and the vertical surface of the air guide groove.

4. The mesh belt auxiliary heating device according to claim 1, characterized in that: The heat exchange tube (6) is arranged inside the multi-stage heating tank (4) and the tail end passes through a liquid guide groove provided in the multi-stage heating tank (4). The heat exchange tube (6) is located between a plurality of groups of staggered lower baffles (5) and upper baffles (7).

5. The mesh belt auxiliary heating device according to claim 1, characterized in that: The one-way valve (14) is arranged at the opening at the bottom of the exhaust pipe (13), and the air pipe (3) and the exhaust pipe (13) are both connected to the mesh belt air supply port (2).

6. The mesh belt auxiliary heating device according to claim 1, characterized in that: The lower baffle (5) exhausts air to the mesh belt air supply port (2) through the connection between the exhaust pipe (13) and the one-way valve (14).

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