Tobacco curing barn

Abstract

The utility model discloses a tobacco leaf curing barn which comprises a curing barn body, a protective door is arranged on the curing barn body, two conveying rollers are symmetrically arranged on the two side walls of the curing barn body respectively, a driving structure is arranged in cooperation with the conveying rollers, a conveying belt is arranged between every two conveying rollers in each set, and a hanging rod is arranged between every two conveying belts in an erected mode. An air blowing assembly is arranged at the bottom end of the curing barn body, an air suction assembly is arranged at the top end of the curing barn body, an air suction pipe is arranged at the output end of the air suction assembly, the air suction pipe is sleeved with a cooling cover, spiral guide blades are arranged between the cooling cover and the air suction pipe, a spiral guide cavity is formed through the spiral guide blades, and a liquid inlet pipe and a liquid outlet pipe are arranged on the cooling cover in a matched mode. According to the tobacco leaf curing barn, the convenience of tobacco leaves entering the curing barn body can be improved, and meanwhile waste heat in waste gas generated in the tobacco leaf curing process can be effectively utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco leaf curing barns, and more particularly to a tobacco leaf curing barn. Background Art

[0002] Tobacco is an annual or limited perennial herb in the Solanaceae family. The plant is covered with glandular hairs, with stems 0.7-2 meters tall. The petioles are inconspicuous or wing-like. The inflorescence is terminal. The calyx is tubular or tubular-bell-shaped, and the corolla is funnel-shaped with a pink tip. Tobacco leaves are used as raw material for the tobacco industry.

[0003] During the production and processing of tobacco leaves, the tobacco leaves need to be baked. During this process, the tobacco leaves need to be hung on hanging rods and then hung on racks in the baking room. During this process, the tobacco leaves need to be manually pushed inward, which is inconvenient to operate.

[0004] In addition, the waste gas generated during the tobacco leaf baking process contains a large amount of heat. Most of the existing technologies directly discharge the waste gas to the outside, which leads to a waste of heat in the waste gas and a waste of energy. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the problems existing in the prior art, the utility model provides a tobacco leaf curing barn to solve the technical problems of the tobacco leaf curing barn in the prior art mentioned in the background technology.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention provides the following technical solutions:

[0009] A tobacco leaf curing room comprises a curing room body, a protective door is provided on the curing room door body, two conveying rollers are symmetrically provided on both side walls of the curing room body, and a driving structure is provided in conjunction with the conveying rollers, a conveyor belt is provided between each group of two conveying rollers, a hanging rod is provided between the two groups of conveyor belts, a blowing assembly is provided at the bottom end of the curing room body, and a suction assembly is provided at the top end, a suction pipe is provided at the output end of the suction assembly, a cooling hood is provided on the suction pipe, a spiral guide blade is provided between the cooling hood and the suction pipe, and a spiral guide cavity is formed by the spiral guide blade, and a liquid inlet pipe and a liquid outlet pipe are provided in conjunction with the cooling hood.

[0010] The utility model is further configured as follows: the baking room body includes an inner wall, a heat preservation layer is provided on the outer side of the inner wall, a heat insulating layer is provided on the outer side of the heat preservation layer, and a protective shell is provided on the outer side of the heat insulating layer. Through the cooperation of the heat preservation layer and the heat insulating layer, effective heat preservation and heat insulation of the baking room body can be achieved, thereby preventing heat from being lost outward through the side wall of the baking room body.

[0011] The utility model is further configured such that the suction pipe extends to a thermal insulation pipe provided between the thermal insulation layer and the heat insulation layer. The thermal insulation pipe is distributed in a serpentine shape between the thermal insulation layer and the heat insulation layer, and the tail end extends to the outside of the protective shell, and is provided with an air outlet pipe. The provision of the thermal insulation pipe can enhance the overall thermal insulation effect of the side wall of the baking room body, thereby avoiding heat loss during hot air baking.

[0012] The utility model is further configured such that a drain pipe is provided on the outside of the protective shell, a connecting pipe is provided between the drain pipe and the serpentine bottom of the insulation pipe, a valve is provided on the drain pipe, and the water condensed in the insulation pipe is conveniently guided to the drain pipe through the connecting pipe and discharged outwardly, and the valve is used to control the opening and closing of the drain pipe.

[0013] The utility model is further configured such that the driving structure includes a motor, which is transmission-connected to one of the conveying rollers, and a connecting shaft is provided between the two inner conveying rollers. The cooperation between the motor and the connecting shaft can control the synchronous rotation of the conveying rollers on both sides, thereby realizing the synchronous movement of the conveyor belt.

[0014] The present invention is further configured such that the air suction component includes an air suction hood, the output end of the air suction hood is connected to the air suction pipe, and the air suction end of the air suction pipe is cooperated with a suction fan, and a protective filter is provided on the side of the air suction hood connected to the baking room body. When the suction fan is started, the water vapor and excess airflow generated during the tobacco leaf baking process can be effectively extracted by the suction fan and transported through the air suction pipe to avoid the accumulation of water vapor inside the baking room body and affecting the tobacco leaf baking effect. The provision of the protective filter can prevent the debris generated during the tobacco leaf baking process from being sucked out by the suction hood.

[0015] The utility model is further configured such that the blowing assembly includes an air supply cavity, which is arranged at the bottom end of the baking room body, a hot air supply structure is provided on the side of the air supply cavity, and a ventilation groove is provided on the side of the air supply cavity connected to the interior of the baking room body. Through the cooperation of the air supply cavity and the ventilation groove, a hot air source can be evenly provided to the interior of the baking room body.

[0016] The present invention is further configured such that the hot air supply structure includes a hair dryer, a heating box is provided on one side of the blower connected to the air supply chamber, an electric heating wire is provided in the heating box, and the air flow can be transported to the heating box by the hair dryer and heated by the electric heating wire, thereby being provided to the air supply chamber to provide hot air for baking tobacco leaves. Here, the hair dryer can be used in conjunction with an external air flow filtering device to improve the cleanliness of the air supply. The above-mentioned coordination structure is an existing well-known technology and will not be elaborated in the present invention.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides a tobacco leaf curing barn with the following beneficial effects:

[0019] 1. When the utility model is in use, tobacco leaves can be hung by the hanging rod. After the tobacco leaves are hung on the hanging rod, the hanging rod can be placed on the side of the curing room body close to the protective door, and the motor can be started. The corresponding conveying roller can be controlled to rotate by the motor, and the rotation of the conveying roller can control the rotation of the conveyor belt. The conveyor belt can drive the movement of the hanging rod on the conveyor belt, thereby realizing the movement of the tobacco leaves. In this way, when laying tobacco leaves, it is only necessary to simply lay the tobacco leaves between the two sets of conveyor belts. The conveyor belt can automatically drive the tobacco leaves inward, and there is no need to manually push the tobacco leaves inward, thereby improving the convenience of operation.

[0020] 2. During the baking process of tobacco leaves, the utility model starts the hair dryer, and the air flow will pass through the heating box and be heated by the electric heating wire in the heating box. After that, the hot air flow can enter the air supply cavity and evenly enter the inside of the baking room body through the ventilation slots, thereby heating the tobacco leaves inside the baking room body. The water vapor and hot air flow generated by baking will be discharged outward through the suction hood under the action of the suction fan and transported through the suction pipe. In this process, external cold water is transported to the cooling hood through the liquid inlet pipe, and flows in the spiral guide cavity under the action of the spiral guide blades, thereby realizing heat exchange with the hot air flow transported in the suction pipe, realizing the utilization of waste heat in the hot air flow, thereby avoiding the waste of heat caused by the direct discharge of the hot air flow generated during the tobacco leaf baking process, and improving energy utilization.

[0021] 3. After the initial cooling by the cooling hood, the air flow will enter the inside of the insulation pipe. Since the insulation pipe is serpentinely distributed on the outside of the insulation layer, the remaining temperature can be used to achieve thermal insulation of the side wall of the curing room body, improve the utilization of the air flow inside the curing room body, reduce heat loss, and improve the heat utilization effect and efficiency of the exhaust gas during the tobacco baking process. In this process, due to the gradual decrease in temperature, the water vapor carried in the air flow will gradually condense into water droplets and accumulate at the bottom of the insulation pipe and flow into the connecting pipe. By opening the valve, the condensed water can be conveniently discharged outward through the drain pipe to avoid the accumulation of water vapor inside the insulation pipe. The excess gas can be discharged outward through the air outlet pipe. Here, if it is necessary to filter the gas, it can be used in conjunction with the gas filtering equipment in the prior art. This is an existing well-known technology and will not be described in detail in this utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a tobacco leaf curing room in this utility model. Figure 1 ;

[0023] Figure 2This is a schematic cross-sectional view of the internal structure of the baking room body in the present invention;

[0024] Figure 3 This is a schematic cross-sectional view of the matching structure between the air suction pipe and the cooling cover in the utility model;

[0025] Figure 4 This is a schematic cross-sectional view of the side wall structure of the baking room body in this utility model. Figure 1 ;

[0026] Figure 5 This is a schematic diagram of the installation structure of the thermal insulation pipe in the utility model;

[0027] Figure 6 This is a schematic diagram of the cooperation structure between the conveyor roller and the conveyor belt in the utility model;

[0028] Figure 7 This is a schematic diagram of the connection structure between the air suction hood and the protective filter screen in the utility model;

[0029] Figure 8 This is a schematic cross-sectional view of the internal structure of the heating box in the present invention.

[0030] In the figure: 1. Baking room body; 2. Protective door; 3. Conveyor roller; 4. Conveyor belt; 5. Hanging rod; 6. Suction duct; 7. Cooling hood; 8. Spiral guide blade; 9. Spiral guide chamber; 10. Liquid inlet pipe; 11. Liquid outlet pipe; 12. Inner wall; 13. Insulation layer; 14. Heat insulation layer; 15. Protective shell; 16. Insulation pipe; 17. Air outlet pipe; 18. Drain pipe; 19. Connecting pipe; 20. Valve; 21. Motor; 22. Connecting shaft; 23. Suction hood; 24. Suction fan; 25. Protective filter; 26. Air supply chamber; 27. Ventilation slot; 28. Hair dryer; 29. ​​Heating box; 30. Electric heating wire. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0034] See also Figures 1-8 A tobacco leaf flue-curing barn comprises a flue-curing barn body 1, a protective door 2 being provided on the flue-curing barn door body, two conveying rollers 3 being symmetrically provided on both side walls of the flue-curing barn body 1, and a driving structure being provided for the conveying rollers 3, a conveyor belt 4 being provided between each set of two conveyor rollers 3, and a suspension rod 5 being provided between the two sets of conveyor belts 4;

[0035] When in use, the utility model can realize the hanging of tobacco leaves by the hanging rod 5. After the tobacco leaves are hung on the hanging rod 5, the hanging rod 5 can be placed on the side of the curing room body 1 close to the protective door 2, and the motor 21 can be started. The corresponding conveying roller 3 can be controlled to rotate by the motor 21. The rotation of the conveying roller 3 can control the rotation of the conveyor belt 4. The conveyor belt 4 can drive the movement of the hanging rod 5 placed on the conveyor belt 4, thereby realizing the movement of the tobacco leaves placed. In this way, when placing the tobacco leaves, it is only necessary to simply place the tobacco leaves between the two sets of conveyor belts 4. The conveyor belt 4 can automatically drive the tobacco leaves inward, and there is no need to manually push the tobacco leaves inward, thereby improving the convenience of operation.

[0036] The utility model is provided with a blowing assembly at the bottom end of the baking room body 1, and a suction assembly is provided at the top end. A suction pipe 6 is provided at the output end of the suction assembly. A cooling cover 7 is provided on the suction pipe 6. A spiral guide blade 8 is provided between the cooling cover 7 and the suction pipe 6, and a spiral guide cavity 9 is formed by the spiral guide blade 8. A liquid inlet pipe 10 and a liquid outlet pipe 11 are provided on the cooling cover 7.

[0037] During the tobacco leaf baking process, the utility model delivers external cold water to the cooling cover 7 through the liquid inlet pipe 10, and flows in the spiral guide cavity 9 under the action of the spiral guide blades 8, thereby realizing heat exchange with the hot air flow delivered in the suction pipe 6, realizing the utilization of the residual heat in the hot air flow, thereby avoiding the waste of heat caused by the direct discharge of the hot air flow generated in the tobacco leaf baking process, and improving the energy utilization rate;

[0038] See also Figures 1-8 As an implementation method of the baking room body 1: the baking room body 1 includes an inner wall 12, a heat preservation layer 13 is provided on the outer side of the inner wall 12, a heat insulation layer 14 is provided on the outer side of the heat preservation layer 13, and a protective shell 15 is provided on the outer side of the heat insulation layer 14. Through the cooperation of the heat preservation layer 13 and the heat insulation layer 14, the baking room body 1 can be effectively kept warm and insulated, avoiding the situation where heat is lost outward through the side wall of the baking room body 1.

[0039] See also Figures 1-8As an implementation method of the suction pipe 6: the suction pipe 6 extends to a thermal insulation pipe 16 between the thermal insulation layer 13 and the thermal insulation layer 14. The thermal insulation pipe 16 is distributed in a serpentine shape between the thermal insulation layer 13 and the thermal insulation layer 14, and the tail end extends to the outside of the protective shell 15, and is provided with an air outlet pipe 17. The setting of the thermal insulation pipe 16 can enhance the overall thermal insulation effect of the side wall of the baking room body 1, thereby avoiding heat loss during hot air baking.

[0040] See also Figures 1-8 As an implementation method of the protective shell 15: a drain pipe 18 is provided on the outside of the protective shell 15, a connecting pipe 19 is provided between the drain pipe 18 and the serpentine bottom of the insulation tube 16, and a valve 20 is provided on the drain pipe 18. The connecting pipe 19 facilitates the guidance of the water condensed in the insulation tube 16 to the drain pipe 18 and discharge it outward. The valve 20 is used to control the opening and closing of the drain pipe 18.

[0041] See also Figures 1-8 As an implementation method of the driving structure including a motor 21, the driving structure includes a motor 21, which is transmission-connected to one of the conveying rollers 3, and a connecting shaft 22 is provided between the two inner conveying rollers 3. The cooperation between the motor 21 and the connecting shaft 22 can control the synchronous rotation of the conveying rollers 3 on both sides, thereby realizing the synchronous movement of the conveyor belt 4.

[0042] See also Figures 1-8 As an implementation method of the suction component: the suction component includes a suction hood 23, the output end of the suction hood 23 is connected to the suction pipe 6, and the suction end of the suction pipe 6 is cooperated with a suction fan 24, and a protective filter 25 is provided on the side of the suction hood 23 connected to the baking room body 1. When the suction fan 24 is started, the water vapor and excess airflow generated during the baking process of tobacco leaves can be effectively extracted by the suction fan 24 and transported through the suction pipe 6 to avoid the accumulation of water vapor inside the baking room body 1 and affecting the baking effect of tobacco leaves. The setting of the protective filter 25 can prevent the debris generated during the baking process of tobacco leaves from being sucked out by the suction hood 23.

[0043] See also Figures 1-8 As an implementation method of the blowing component: the blowing component includes an air supply cavity 26, which is arranged at the bottom end of the baking room body 1. A hot air supply structure is provided on the side of the air supply cavity 26, and a ventilation groove 27 is provided on the side where the air supply cavity 26 is connected to the inside of the baking room body 1. Through the cooperation of the air supply cavity 26 and the ventilation groove 27, a hot air source can be evenly provided to the inside of the baking room body 1.

[0044] See also Figures 1-8As an implementation method of the hot air supply structure: the hot air supply structure includes a hair dryer 28, and a heating box 29 is provided on one side of the fan connected to the air supply chamber 26. An electric heating wire 30 is provided in the heating box 29. The air flow can be transported to the heating box 29 by the hair dryer 28 and heated by the electric heating wire 30, thereby providing it to the air supply chamber 26 to provide hot air for the baking of tobacco leaves. Here, the hair dryer 28 can be used in conjunction with an external air flow filtering device to improve the cleanliness of the air supply. The above-mentioned coordination structure is an existing well-known technology and will not be elaborated in this utility model.

[0045] In summary:

[0046] When the utility model is in use, the tobacco leaves can be hung by the hanging rod 5. After the tobacco leaves are hung on the hanging rod 5, the hanging rod 5 can be placed on the side of the curing room body 1 close to the protective door 2, and the motor 21 can be started. The corresponding conveying roller 3 can be controlled to rotate by the motor 21. The rotation of the conveying roller 3 can control the rotation of the conveyor belt 4. The conveyor belt 4 can drive the movement of the hanging rod 5 placed on the conveyor belt 4, thereby realizing the movement of the tobacco leaves. In this way, when laying tobacco leaves, it is only necessary to simply lay the tobacco leaves between the two sets of conveyor belts 4. The conveyor belt 4 can automatically drive the tobacco leaves inward, and there is no need to manually push the tobacco leaves inward, thereby improving the convenience of operation.

[0047] During the tobacco leaf baking process, the utility model starts the blower 28, and the air flow passes through the heating box 29 and is heated by the electric heating wire 30 in the heating box 29. After that, the hot air flow can enter the air supply chamber 26 and evenly enter the interior of the baking room body 1 through the ventilation slots 27, thereby heating the tobacco leaves inside the baking room body 1. The water vapor and hot air flow generated by baking will be discharged outwards through the suction hood 23 under the action of the suction fan 24, and transported through the suction pipe 6. In this process, external cold water is transported to the cooling hood 7 through the liquid inlet pipe 10, and flows in the spiral guide cavity 9 under the action of the spiral guide blades 8, thereby realizing heat exchange with the hot air flow transported in the suction pipe 6, realizing the utilization of the waste heat in the hot air flow, thereby avoiding the waste of heat caused by the direct discharge of the hot air flow generated in the tobacco leaf baking process, and improving the energy utilization rate;

[0048] After the initial cooling by the cooling hood 7, the air flow will enter the interior of the insulation pipe 16. Since the insulation pipe 16 is serpentinely distributed on the outside of the insulation layer 13, the remaining temperature can be used to achieve thermal insulation of the side wall of the curing room body 1, improve the utilization of the air flow inside the curing room body 1, reduce heat loss, and improve the heat utilization effect and efficiency of the exhaust gas during the tobacco baking process. In this process, due to the gradual decrease in temperature, the water vapor carried in the air flow will gradually condense into water droplets and accumulate at the bottom of the insulation pipe 16, and flow into the connecting pipe 19. By opening the valve 20, the condensed water can be conveniently discharged to the outside through the drain pipe 18 to avoid the accumulation of water vapor inside the insulation pipe 16. The excess gas can be discharged to the outside through the air outlet pipe 17. Here, if it is necessary to filter the gas, it can be used in conjunction with the gas filtering equipment in the prior art. This is an existing well-known technology and will not be elaborated in this utility model.

[0049] In all the solutions mentioned above, the connection between two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which are not listed here one by one. In the above, whenever there is a fixed connection, welding is preferably considered. 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 can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

[0050] In all the solutions mentioned above, if there is no clear description about the operation of electrical components, they are all controlled by the controller. Since the devices matched with the controller are common devices, their control principles and circuit connections are well-known and mature technologies. Therefore, their electrical connection relationships and specific circuit structures will not be described in detail here.

[0051] In all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are well-known technologies and will not be described in detail in this utility model.

[0052] In all the solutions mentioned above, those involving the connection between solar panels and batteries can be used in conjunction with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and line connections are all well-known and mature technologies. Their electrical connection relationships and specific circuit structures will not be described in detail here.

Claims

1. A tobacco leaf curing barn, comprising a curing barn body (1), wherein a protective door (2) is provided on the curing barn door body, and wherein: Two conveying rollers (3) are symmetrically arranged on both side walls of the baking room body (1), and a driving structure is arranged in conjunction with the conveying rollers (3). A conveyor belt (4) is arranged between each group of two conveying rollers (3), and a hanging rod (5) is arranged between the two groups of conveyor belts (4). The bottom end of the baking room body (1) is provided with a blowing assembly, and the top end is provided with a suction assembly. The output end of the suction assembly is provided with a suction pipe (6), and a cooling cover (7) is provided on the suction pipe (6). A spiral guide blade (8) is provided between the cooling cover (7) and the suction pipe (6), and a spiral guide cavity (9) is formed by the spiral guide blade (8). The cooling cover (7) is provided with a liquid inlet pipe (10) and a liquid outlet pipe (11).

2. The tobacco leaf curing barn according to claim 1, wherein: The baking room body (1) comprises an inner wall (12), a heat preservation layer (13) is provided on the outer side of the inner wall (12), a heat insulation layer (14) is provided on the outer side of the heat preservation layer (13), and a protective shell (15) is provided on the outer side of the heat insulation layer (14).

3. A tobacco leaf curing barn according to claim 2, characterized in that: The air suction pipe (6) extends to a position where an insulation pipe (16) is provided between the insulation layer (13) and the heat insulation layer (14). The insulation pipe (16) is distributed in a serpentine shape between the insulation layer (13) and the heat insulation layer (14), and the tail end extends to the outside of the protective shell (15), and an air outlet pipe (17) is provided.

4. The tobacco leaf curing barn according to claim 3, wherein: A drain pipe (18) is provided on the outside of the protective shell (15), a connecting pipe (19) is provided between the drain pipe (18) and the serpentine bottom of the insulation pipe (16), and a valve (20) is provided on the drain pipe (18).

5. The tobacco leaf curing barn according to claim 1, wherein: The driving structure comprises a motor (21), the motor (21) is in transmission connection with one of the conveying rollers (3), and a connecting shaft (22) is provided between the two inner conveying rollers (3).

6. A tobacco leaf curing barn according to any one of claims 1 to 5, characterized in that: The suction assembly includes a suction hood (23), the output end of the suction hood (23) is connected to the suction pipe (6), and a suction fan (24) is provided on the suction end of the suction pipe (6). A protective filter (25) is provided on the side of the suction hood (23) connected to the baking room body (1).

7. The tobacco leaf curing barn according to claim 1, wherein: The blowing assembly includes an air supply chamber (26), which is arranged at the bottom end of the baking room body (1), a hot air supply structure is arranged on the side of the air supply chamber (26), and a ventilation slot (27) is opened on the side of the air supply chamber (26) connected to the inside of the baking room body (1).

8. The tobacco leaf curing barn according to claim 7, wherein: The hot air supply structure comprises a blower (28), a heating box (29) is provided on one side of the blower connected to the air supply cavity (26), and an electric heating wire (30) is provided in the heating box (29).

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