Continuous drying production line for bean products

Abstract

The utility model belongs to the technical field of bean product drying, particularly relates to a continuous bean product drying production line, and aims to solve the problems that an existing axial fan is high in noise, and a large amount of heat is wasted as bean products such as bean curds are low in height and a large part of hot air directly circulates without being in contact with the bean products. Comprising a frame body, a U-shaped frame is installed at the top of the frame body, a drying device is installed in the U-shaped frame, the drying device comprises a cross flow fan, the air inlet side of the cross flow fan is located in the middle of the U-shaped frame and arranged downwards, the air outlet side of the cross flow fan communicates with heating cavities, and the heating cavities are formed in the two sides of the U-shaped frame; according to the sample drying device, in the drying process, noise can be reduced, the number of the communicated hot air holes can be adjusted, and therefore the air outlet amount of hot air can be matched with the height of a sample, and the heat energy utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of dried bean products, in particular to a continuous drying production line for dried bean products. Background Art

[0002] When drying bean products through a tunnel drying device, generally a drying device is arranged in a U-shaped frame. During the drying process, the internal air is extracted by a fan for circulating and heating air supply. However, when using a fan for air extraction, the noise is relatively large.

[0003] Moreover, when drying bean products, since the height of bean products such as tofu is not high when laid flat on the conveyor belt, when the drying devices on both sides in the U-shaped frame blow out air for heating, the hot air at the upper part directly enters the circulation without contacting the bean products, resulting in a large amount of wasted heat. Summary of the Utility Model

[0004] The utility model provides a continuous drying production line for dried bean products, which solves the disadvantages in the prior art that the use of an axial flow fan generates relatively large noise, and since the height of bean products such as tofu is relatively low, a large part of the hot air directly enters the circulation without contacting the bean products, resulting in a large amount of wasted heat.

[0005] The utility model provides the following technical solutions:

[0006] A continuous drying production line for dried bean products includes a frame body. A conveyor belt is installed on the upper part of the frame body. A U-shaped frame is installed on the top of the frame body. A drying device is installed in the U-shaped frame. The drying device includes a cross-flow fan. The air inlet side of the cross-flow fan is arranged downward in the middle of the U-shaped frame. The air outlet side of the cross-flow fan is communicated with a heating chamber. The heating chamber is arranged on both sides of the U-shaped frame. An electric heating component is installed in the heating chamber. The heating chamber is provided with uniformly arranged hot air holes. By installing a cross-flow fan to drive the air circulation, and during the circulation process, the cross-flow fan can drive a large amount of hot air even when rotating at a low speed, reducing the generation of noise.

[0007] As a further improvement of the above solution.

[0008] Preferably, a cross-flow fan installation cavity protruding upward is opened at the top of the U-shaped frame. The length of the cross-flow fan installation cavity is adapted to the cross-flow fan. And there is an air flow gap between the cross-flow fan and the installation cavity. The air flow gap is communicated with the heating chamber. The cross-flow fan extracts the air in the U-shaped frame and sends it into the heating chamber for heating. The heating chamber evenly sends the heated air into the U-shaped frame. The cross-flow fan can drive the hot air to circulate.

[0009] Preferably, the heating chamber is formed by the inner wall of the U-shaped frame and the L-shaped bending plate. The edge of the L-shaped bending plate is bent with a folded edge, and fixed edges are bent on the folded edges on both sides. The fixed edges are detachably connected to the U-shaped frame by bolts. The heating chamber can be formed by the L-shaped bending plate and the inner wall of the U-shaped frame, with simple structure and low cost.

[0010] Preferably, the L-shaped bending plate and the U-shaped frame enclose an L-shaped heating chamber, and the upper side of the L-shaped bending plate extends into the installation chamber. The air flow gap of the installation chamber is communicated with the L-shaped heating chamber, so that when the cross-flow fan rotates, hot air can be conveniently introduced into the L-shaped heating chamber for heating, and the heated air is re-introduced into the U-shaped frame to dry the soy products.

[0011] Preferably, an electric heating wire is installed on the lower side of the L-shaped bending plate to heat the air.

[0012] Preferably, front baffles and rear baffles are installed at both ends of the U-shaped frame, and the front baffles and rear baffles are connected to the U-shaped frame by bolts. Strip-shaped installation openings for adjusting the height are provided on the front baffles and rear baffles. By adjusting the heights of the front baffles and rear baffles, drying of more types of samples can be adapted, so that the samples can smoothly enter the U-shaped frame, and the front baffles and rear baffles can also prevent too much hot air from escaping.

[0013] Preferably, a wind baffle is installed between the front baffle and the rear baffle, and the wind baffle is in contact with the L-shaped bending plates on both sides. By setting the wind baffle, the number of communicated hot air holes can be adjusted while adjusting the heights of the front baffle and the rear baffle, so that the air volume of the hot air can be adapted to the height of the sample, and the thermal energy utilization rate is improved.

[0014] Preferably, the heights of the wind baffle, the front baffle and the rear baffle are adjustable.

[0015] In the present utility model, the cross-flow fan is installed to drive the air flow circulation, and during the circulation process, the cross-flow fan can also drive a large amount of hot air at a low speed of rotation, reducing the generation of noise.

[0016] In the present utility model, the air flow gap of the installation chamber is communicated with the L-shaped heating chamber, so that when the cross-flow fan rotates, hot air can be conveniently introduced into the L-shaped heating chamber for heating, and the heated air is re-introduced into the U-shaped frame to dry the soy products.

[0017] In the present utility model, a wind baffle is installed between the front baffle and the rear baffle, and the wind baffle is in contact with the L-shaped bending plates on both sides. By setting the wind baffle, the number of communicated hot air holes can be adjusted while adjusting the heights of the front baffle and the rear baffle, so that the air volume of the hot air can be adapted to the height of the sample, and the thermal energy utilization rate is improved. Description of the Drawings

[0018] Figure 1 This is a three-dimensional structure schematic diagram of a continuous drying production line for soy products provided by an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a U-shaped frame of a continuous drying production line for soy products provided by an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of an L-shaped bending plate of a continuous drying production line for soy products provided by an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the front baffle, rear baffle and wind baffle of a continuous drying production line for soy products provided by an embodiment of the present utility model.

[0022] Reference numerals:

[0023] 1. Installation cavity; 2. Front baffle; 3. Strip-shaped installation opening; 4. Rear baffle; 5. U-shaped frame; 6. Frame body; 7. L-shaped bending plate; 8. Cross-flow fan; 9. Folding extension edge; 10. Fixed edge; 11. Hot air holes; 12. Electric heating wire; 13. Wind baffle. Detailed implementation manners

[0024] The following describes the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.

[0025] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "connection" and "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct communication or an indirect communication through an intermediate medium. Among them, "fixing" means being connected to each other and the relative positional relationship after connection remains unchanged. The orientation terms mentioned in the embodiments of the present utility model, such as "inside", "outside", "top", "bottom", etc., are only with reference to the direction of the accompanying drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the embodiments of the present utility model.

[0026] In the embodiments of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0027] In the embodiments of the present utility model, "and / or" is merely a relational description of associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this text, the character " / " generally represents an "or" relationship between the associated objects before and after.

[0028] Example, refer to Figures 1-4 , a continuous drying production line for soy products, including a frame 6. A conveyor belt is installed on the upper part of the frame 6. A U-shaped frame 5 is installed on the top of the frame 6. The U-shaped frame 5 is also connected to a hot air circulation pipeline. The hot air circulation pipeline is connected to an exhaust fan and a filtering device. A filter material for filtering moisture is placed in the filtering device. A heat insulation layer is also provided inside the U-shaped frame 5. A drying device is installed inside the U-shaped frame 5. The drying device includes a cross-flow fan 8. The air inlet side of the cross-flow fan 8 is arranged downward in the middle of the U-shaped frame 5. The air outlet side of the cross-flow fan 8 is communicated with a heating chamber. The heating chamber is arranged on both sides of the U-shaped frame 5. An electric heating component is installed inside the heating chamber. The heating chamber is provided with uniformly arranged hot air holes 11.

[0029] On the top of the U-shaped frame 5, there is a cross-flow fan 8 installation cavity 1 protruding upward. The length of the cross-flow fan 8 installation cavity 1 is adapted to the cross-flow fan 8, and there is an air flow gap between the cross-flow fan 8 and the installation cavity 1. The air flow gap is communicated with the heating chamber. The cross-flow fan 8 extracts the air inside the U-shaped frame 5 and sends it into the heating chamber for heating. The heating chamber evenly sends the heated air into the U-shaped frame 5. The heating chamber is formed by the inner wall of the U-shaped frame 5 and the L-shaped bending plate 7. The edge of the L-shaped bending plate 7 is bent with a folded edge 9. Fixed edges 10 are bent on the folded edges 9 on both sides. The fixed edges 10 are detachably connected to the U-shaped frame 5 by bolts. The L-shaped bending plate 7 and the U-shaped frame 5 enclose an L-shaped heating chamber, and the upper side of the L-shaped bending plate 7 extends to the installation cavity 1. The air flow gap of the installation cavity 1 is communicated with the L-shaped heating chamber. An electric heating wire 12 is installed on the lower side of the L-shaped bending plate 7.

[0030] Front baffles 2 and rear baffles 4 are installed at both ends of the U-shaped frame 5, and the front baffles 2 and rear baffles 4 are connected to the U-shaped frame 5 by bolts. Strip-shaped installation openings 3 for adjusting the height are provided on the front baffles 2 and rear baffles 4. A wind baffle 13 is installed between the front baffles 2 and rear baffles 4. The wind baffle 13 is in contact with the L-shaped bending plates 7 on both sides. The height of the wind baffle 13 is adjustable with respect to the front baffles 2 and rear baffles 4. Both ends of the wind baffle 13 are provided with folded edges on both sides. The folded edges on both sides are connected to the strip-shaped installation openings 3 by threads. The height of the wind baffle 13 can be adjusted by adjusting the position of the folded edges on both sides in the strip-shaped installation openings 3.

[0031] The working principle of this application is as follows:

[0032] Adjust the heights of the front baffle 2 and the rear baffle 4 so that there is a gap for the soy products to pass between the front baffle 2, the rear baffle 4 and the conveyor belt. Adjust the heights of the wind baffle 13 and the front baffle 2, the rear baffle 4 so that the wind baffle 13 is slightly higher than the front baffle 2 and the rear baffle 4. Therefore, the front baffle 2 and the rear baffle 4 can block some of the upper hot air holes 11, making the hot air holes 11 concentrated in the lower part, corresponding to the materials on the conveyor belt, improving the heat utilization efficiency. The hot air coming out of the hot air holes 11 will contact the soy products and take away the moisture of the soy products. Subsequently, this part of the hot air rises, and finally is extracted by the cross-flow fan 8 at the top. The cross-flow fan 8 conveys the extracted hot air into the air flow gap of the installation cavity 1 again. Since the air flow gap is also communicated with the heating cavity, this part of the gas is sent back into the heating cavity for heating and recycling.

[0033] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention; without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A continuous drying production line for bean products, comprising a frame, a conveyor belt is installed on the upper part of the frame, a U-shaped frame is installed on the top of the frame, and a drying device is installed in the U-shaped frame, characterized in that: The drying device includes a cross-flow fan, the air inlet side of the cross-flow fan is located in the middle of the U-shaped frame and is arranged downward, the air outlet side of the cross-flow fan is connected to the heating chamber, the heating chamber is arranged on both sides of the U-shaped frame, an electric heating component is installed in the heating chamber, and the heating chamber is provided with evenly arranged hot air holes.

2. The continuous drying production line for soy products according to claim 1 is characterized by: An upwardly protruding cross-flow fan installation cavity is provided on the top of the U-shaped frame. The length of the cross-flow fan installation cavity is adapted to the cross-flow fan, and an airflow gap is left between the cross-flow fan and the installation cavity. The airflow gap is connected to the heating cavity. The cross-flow fan draws air in the U-shaped frame and sends it into the heating cavity for heating. The heating cavity evenly sends the heated air into the U-shaped frame.

3. The continuous drying production line for soy products according to claim 2 is characterized in that: The heating chamber is formed by the inner wall of the U-shaped frame and the L-shaped bending plate. The L-shaped bending plate has a folded edge at its edge, and the folded edges on both sides are folded with fixed edges. The fixed edges are detachably connected to the U-shaped frame by bolts.

4. The continuous drying production line for soy products according to claim 3 is characterized by: The L-shaped bending plate and the U-shaped frame enclose an L-shaped heating chamber, and the side edge of the L-shaped bending plate extends to the installation chamber, and the air flow gap of the installation chamber is connected to the L-shaped heating chamber.

5. The continuous drying production line for soy products according to claim 4 is characterized by: An electric heating wire is installed on the lower side of the L-shaped bending plate.

6. The continuous drying production line for soy products according to claim 5, characterized in that: A front baffle and a rear baffle are installed at both ends of the U-shaped frame, and the front baffle, the rear baffle and the U-shaped frame are connected by bolts. The front baffle and the rear baffle are provided with strip installation openings for adjusting the height.

7. The continuous drying production line for soy products according to claim 6, characterized in that: A windshield is installed between the front baffle and the rear baffle, and the windshield is in contact with the L-shaped bent plates on both sides respectively.

8. The continuous drying production line for soy products according to claim 7 is characterized by: The heights of the windshield, the front baffle and the rear baffle are adjustable.

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