Tobacco curing barn

Abstract

A tobacco curing barn comprises: a curing barn body (10) having an internal space (IS); the hearth (20) is arranged at the bottom of the curing barn body (10) and used for forming heat for curing tobacco; the tobacco hanging structure (30) is arranged in the internal space (IS), is provided with a plurality of tobacco hanging layers with different heights, and is used for hanging tobacco on each tobacco hanging layer; and the drainage device (40) is arranged in the internal space (IS) and is used for guiding hot air flow on one side, close to the hearth (20), of the internal space (IS) to an upper side position, far away from the hearth (20), of the internal space (IS).

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of tobacco processing, and in particular to a tobacco curing barn. BACKGROUND

[0002] Through investigation and experimental verification, it is found that the following deficiencies exist in the curing process of ordinary small curing barns:

[0003] 1. The upper surface of the furnace and the fire tube of the ordinary small curing barn has very strong radiant heat, especially the heat radiation of the furnace, the furnace tail and the main fire tube is stronger, which causes the lower layer of tobacco to be green and the bottom layer of tobacco to have more green tips.

[0004] 2. The ordinary small curing barn is heated by the ground, which drives the dry hot air to rise, and the temperature gradually decreases while the humidity gradually increases, which has the defect of "high temperature and low humidity at the lower layer, and low temperature and high humidity at the upper layer", which easily causes the lower layer of tobacco to be green due to rapid water loss, and the upper layer of tobacco to be attached with a large amount of condensed water, which easily causes the tobacco to rot and deteriorate to different degrees.

[0005] 3. Due to the limitation of fuel and its combustion control technology, it is difficult for tobacco farmers to accurately control the temperature, which often causes the temperature in the curing barn to fluctuate, causing the "high-humidity cold air mass" at the upper layer of the curing barn to move up and down with the temperature fluctuations, increasing the production range of mixed color and black rotten tobacco leaves. CONTENT OF THE INVENTION

[0006] Therefore, the present disclosure provides a tobacco curing barn, which can improve the quality of tobacco curing.

[0007] In one aspect of the present disclosure, a tobacco curing barn is provided, comprising:

[0008] a curing barn body having an internal space;

[0009] a furnace arranged at the bottom of the curing barn body for forming heat for curing tobacco;

[0010] a tobacco hanging structure arranged in the internal space and having a plurality of tobacco hanging layers with different heights for hanging tobacco in each tobacco hanging layer; and

[0011] a flow guide device arranged in the internal space for guiding the hot air flow adjacent to the furnace on one side of the internal space to an upper side position away from the furnace.

[0012] In some embodiments, the flow guide device comprises a flow guide pipeline and an air flow driving mechanism connected with the flow guide pipeline for driving the air flow in the flow guide pipeline.

[0013] In some embodiments, each tobacco hanging layer of the tobacco hanging structure is fixedly connected with the outer contour of different height positions of the flow guide pipeline.

[0014] In some embodiments, the tobacco hanging layer comprises a blocking beam, which is bound and fixed with the drain pipe by the first binding material.

[0015] In some embodiments, the airflow driving mechanism is arranged at one end of the drain pipe adjacent to the furnace, and is bound and fixed with the drain pipe by a sealing piece and a second binding material, and the sealing piece forms an external interface for communication with the airflow driving mechanism.

[0016] In some embodiments, the side wall of the tobacco curing barn body is provided with a moisture removal pipe extending into the internal space, and the external interface is selectively connected with the end of the moisture removal pipe.

[0017] In some embodiments, the moisture removal pipe comprises an aluminum foil pipe, which is fixedly connected with the airflow driving mechanism by a clamp and inserted into the external interface in the state that the external interface is connected with the end of the moisture removal pipe.

[0018] In some embodiments, the distance between the end of the drain pipe adjacent to the furnace and the top of the furnace in the vertical direction is 70-110 cm.

[0019] In some embodiments, the airflow driving mechanism comprises a circulating fan capable of bidirectional operation.

[0020] In some embodiments, a thermal insulation layer is wrapped on the outer wall of the tobacco curing barn body, and the thermal insulation layer seals the tobacco curing barn body.

[0021] In some embodiments, the tobacco curing barn further comprises:

[0022] A hygrometer arranged in at least part of the plurality of tobacco hanging layers, configured to detect the temperature and humidity of the tobacco hanging layer where the hygrometer is arranged.

[0023] According to the embodiments of the present disclosure, the hot air flow adjacent to the furnace on one side of the internal space of the tobacco curing barn body is guided to the upper side position away from the furnace in the tobacco curing barn body by the drain pipe, which can not only reduce the temperature of the bottom layer of tobacco leaves and reduce the generation of bottom layer tobacco smoke, but also reduce the temperature difference between the upper and lower layers of tobacco leaves and reduce the generation amount of upper layer condensate water, effectively control the reproduction of pythium aphanidermatum, reduce the loss of rotten tobacco, effectively increase the appearance grade quality of cured tobacco leaves, thereby improving the tobacco curing quality and being beneficial to improving the economic benefits of tobacco farmers after curing. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0025] The present disclosure can be more clearly understood and appreciated from the following detailed description, taken in conjunction with the following drawings of which:

[0026] Figure 1 is a structural schematic diagram of some embodiments of the tobacco curing barn according to the present disclosure;

[0027] Figure 2 is a structural schematic diagram of the binding and fixing of the blocking beam and the drainage pipeline in the tobacco curing barn embodiments according to the present disclosure;

[0028] Figure 3 is a schematic diagram of the end connection structure of the moisture removal pipe in the tobacco curing barn embodiments according to the present disclosure;

[0029] Figure 4 is a structural schematic diagram of the moisture removal pipe in the tobacco curing barn embodiments according to the present disclosure;

[0030] Figure 5 is a structural schematic diagram of the outer wall of the barn body in the tobacco curing barn embodiments according to the present disclosure;

[0031] Figure 6 is a schematic diagram of the detection results of the hygrometers distributed in four layers in the tobacco curing barn embodiments according to the present disclosure.

[0032] It should be understood that the dimensions of the various parts shown in the drawings are not drawn to scale. In addition, the same or similar reference numerals indicate the same or similar components. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative in nature and is in no way intended to limit the disclosure, its application or uses. The present disclosure can be implemented in numerous different forms, not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art. It should be noted that the relative arrangement of the components and steps set forth in these embodiments, the components of the materials, numerical expressions, and numerical values are to be interpreted as merely exemplary, rather than as a limitation unless otherwise specifically stated.

[0034] The "first", "second", and similar words used in the present disclosure do not represent any order, number, or importance, but are only used to distinguish different parts. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements. "Up", "down", "left", "right", and the like are only used to represent relative positional relationships, which may also change accordingly when the absolute position of the described object changes.

[0035] In the present disclosure, when it is described that a specific device is located between a first device and a second device, there can or can not be an intervening device between the specific device and the first device or the second device. When it is described that a specific device is connected to another device, the specific device can be directly connected to the other device without an intervening device, or can not be directly connected to the other device with an intervening device.

[0036] All terms used in the present disclosure, including technical or scientific terms, have the same meanings as those understood by those skilled in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and not in an idealized or overly formal sense, unless expressly so defined herein.

[0037] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the description unless otherwise noted in context.

[0038] Figure 1 is a structural schematic diagram of some embodiments of the tobacco curing barn according to the present disclosure. Referring to Figure 1 , the present disclosure provides a tobacco curing barn, comprising a curing barn body 10, a furnace 20, a tobacco hanging structure 30, and a draft device 40.

[0039] The curing barn body 10 has an internal space IS. The curing barn body 10 can comprise a plurality of side walls connected to each other, and each side wall can be connected to a ceiling on the upper side and a floor on the lower side to form a relatively closed internal space. The internal space can accommodate relevant equipment and tobacco to be cured. The tobacco can include tobacco leaves, tobacco shreds, or tobacco stems, etc.

[0040] The furnace 20 is arranged at the bottom of the curing barn body 10 and is used to generate heat for curing the tobacco. The furnace 20 can generate heat by burning gaseous, liquid, or solid fuel, so as to effectively cure the tobacco.

[0041] The tobacco hanging structure 30 is arranged in the internal space IS and has a plurality of tobacco hanging layers with different heights, and is used to hang the tobacco in each tobacco hanging layer. The heights of the tobacco hanging layers of the tobacco hanging structure 30 are different, so that more tobacco can be simultaneously cured from the height direction. Figure 1 The tobacco hanging structure 30 includes five tobacco hanging layers.

[0042] The flow guide device 40 is arranged in the inner space IS, and is used to guide the hot air flow adjacent to the side of the furnace 20 in the inner space IS to the upper side position of the inner space IS away from the furnace 20. The flow guide device 40 can adopt various structures capable of realizing flow guide, such as straight pipes or bent pipes arranged in the inner space IS, and also includes flow channels formed in some related components.

[0043] In this embodiment, the flow guide device is used to guide the hot air flow adjacent to the side of the furnace in the inner space of the tobacco curing barn body to the upper side position of the tobacco curing barn body away from the furnace, so that the temperature of the bottom layer of tobacco leaves can be reduced, the generation of smoke of the bottom layer of tobacco leaves can be reduced, the temperature difference between the upper and lower layers of tobacco leaves can be reduced, the generation amount of condensate water of the upper layer can be reduced, the reproduction of the root rot fungus can be effectively controlled, the loss of rotten tobacco can be reduced, the appearance grade quality of the cured tobacco leaves can be effectively increased, and thus the tobacco curing quality can be improved, and the economic benefits of the tobacco farmers after curing can be improved.

[0044] Reference Figure 1 In some embodiments, the flow guide device 40 includes a flow guide pipe 41 and an air flow driving mechanism 42 connected with the flow guide pipe 41 and used to drive the air flow in the flow guide pipe 41.

[0045] The flow guide pipe 41 can establish an air flow channel between the side of the inner space IS adjacent to the furnace 20 and the upper side position of the inner space IS away from the furnace 20, and the running of the air flow in the flow guide pipe 41 is realized by the driving of the air flow driving mechanism 42.

[0046] In order to enable the flow guide pipe 41 to effectively guide the hot air adjacent to the side of the furnace 20, it is preferred that the distance between the end of the flow guide pipe 41 adjacent to the side of the furnace 20 and the top of the furnace 20 in the vertical direction is 70-110 cm, such as 70 cm, 90 cm, 110 cm, etc. The distance in this range can on the one hand reduce the risk of softening due to the flow guide pipe 41 being too close to the furnace 20, and on the other hand ensure that the hot air flow with a certain temperature is guided to the upper side of the inner space IS to effectively reduce the temperature difference between the upper and lower layers of tobacco leaves.

[0047] Figure 2 It is a structure diagram of the binding and fixing of the blocking beam and the flow guide pipe in the tobacco curing barn embodiment according to the present disclosure. Reference Figure 1 and Figure 2 In some embodiments, each tobacco hanging layer of the tobacco hanging structure 30 is fixedly connected with the outer contour of the flow guide pipe 41 at different height positions.

[0048] By fixing and connecting each hanging layer with the outer contour of the drainage pipeline 41 at different height positions, the drainage pipeline 41 can be fully utilized to conveniently arrange the hanging layer, and interference between the drainage pipeline 41 and the hanging layer can be avoided during installation.

[0049] In Figure 2 , the hanging layer can include a blocking beam 31, which can be fixed by being bound with the drainage pipeline 41 by a first binding material 32. The drainage pipeline 41 can adopt a convenient and readily available plastic pipeline, such as a PVC pipe, which has certain strength and rigidity in addition to being capable of achieving air drainage, and can support the blocking beam 31.

[0050] The first binding material 32 can include various ropes, straps, wires, etc., such as an iron wire that can be used to achieve the binding and fixing of the blocking beam 31 on the PVC pipe.

[0051] Figure 3 is a schematic view of an end connection structure of a drainage pipeline in a tobacco curing barn according to an embodiment of the present disclosure. Figure 4 is a structural schematic view of a drainage pipeline in a tobacco curing barn according to an embodiment of the present disclosure. Reference is made to Figure 3 In some embodiments, the airflow driving mechanism 42 is arranged at one end of the drainage pipeline 41 adjacent to the hearth 20, and the airflow driving mechanism 42 is fixed by being bound with the drainage pipeline 41 by a sealing member 43 and a second binding material 44, and the sealing member 43 forms an external interface for communicating with the airflow driving mechanism 42.

[0052] Arranging the airflow driving mechanism at one end of the drainage pipeline 41 adjacent to the hearth 20 can make the lighter hot air flow faster to the upper side of the internal space IS through the drainage pipeline 41, reduce heat loss of the hot air during the drainage process, and the airflow driving mechanism located at the lower side is convenient for dismounting and connecting the pipeline, which is conducive to improving the dismounting efficiency.

[0053] The sealing member 43 can be made of a plastic film or other materials. The sealing member 43 is fixed by being bound with the drainage pipeline 41 by the second binding material 44, which can form a convenient airflow suction or discharge for the airflow driving mechanism 42 on the side of the drainage pipeline 41 adjacent to the airflow driving mechanism 42, and reduce the leakage and diffusion of the airflow at this position. The external interface of the sealing member 43 can be arranged near the hearth 20 to suck in hot air. In addition, the external interface can also be used to connect other structures.

[0054] Reference is made to Figure 1 and Figure 3 In some embodiments, the side wall of the barn body 10 is provided with a drainage pipeline 50 extending into the internal space IS, and the external interface is selectively connected with the end of the drainage pipeline 50.

[0055] In Figure 1 The moisture discharge pipe is arranged on the side wall of the curing barn body 10, and can be arranged in the form of penetrating the side wall. The moisture discharge pipe 50 can be used to discharge the moisture in the curing barn body 10 to the outside, and can be selectively connected with the outer interface of the sealing member 43, that is, can be disconnected or connected as needed.

[0056] Referring to Figure 3 and Figure 4 In some embodiments, the moisture discharge pipe 50 includes an aluminum foil pipe 51, which is fixedly connected with the air flow driving mechanism 42 through a clamp 52 and is inserted into the outer interface in the state that the outer interface is connected with the end of the moisture discharge pipe 50.

[0057] The aluminum foil pipe 51 is light in weight and corrosion-resistant, and is not easy to be corroded by the moisture containing tobacco material, and is relatively easy to be bent into the required shape, which is convenient for arrangement. The clamp 52 can be conveniently used for clamping operation between the aluminum foil pipe 51 and the air flow driving mechanism 42, and is also convenient for disassembly.

[0058] Referring to Figure 1 and Figure 3 In some embodiments, the air flow driving mechanism 42 includes a circulating fan 421 capable of bidirectional operation.

[0059] The plastic film is bound and fixed around the outer side wall of the drainage pipeline 41 by iron wire at the bottom opening of the drainage pipeline 41, and the plastic film below can be bound and fixed to the side wall of the circulating fan 421 by iron wire. From the start of ignition, the circulating fan 421 is turned on and blows from bottom to top, and the circulating fan 421 can adopt a 40W bidirectional fan to send the hot air above the hearth 20 to the upper part of the internal space IS. In the moisture discharge stage, the circulating fan 421 is turned and connected with the aluminum foil pipe 51 through the clamp 52, and the circulating fan 421 is controlled to discharge the moisture to the outside of the curing barn from top to bottom.

[0060] Figure 5 is a structural schematic view of the outer wall of the curing barn body in the tobacco curing barn embodiment according to the present disclosure. Referring to Figure 5 In some embodiments, the outer wall of the curing barn body 10 is wrapped with a heat preservation layer 11, and the heat preservation layer 11 seals the curing barn body 10. The heat preservation layer 11 can be implemented by using a plastic film or other materials, which can realize heat preservation of the curing barn body, reduce heat loss, and improve the curing efficiency.

[0061] The mounting hole 12 for the moisture discharge pipe 50 to pass through can be arranged on the outer wall of the curing barn body 10. One or more mounting holes 12 can be arranged to mount one or more moisture discharge pipes 50 as needed.

[0062] Figure 6is a schematic diagram of the detection results of the hygrometers distributed in four layers in the tobacco curing barn embodiment according to the present disclosure. Referring to Figure 1 In some embodiments, the tobacco curing barn further comprises hygrometers 60, which are arranged in at least part of the plurality of tobacco hanging layers and are configured to detect the temperature and humidity of the tobacco hanging layer where the hygrometer 60 is located.

[0063] The probe of the hygrometer 60 can be located 10-15 cm from the tip of the hanging tobacco leaf. The hygrometers 60 arranged in different layers can measure the temperature and humidity of different height regions in order to improve the more accurate curing effect in the tobacco curing barn.

[0064] Figure 6 The detection results of the four hygrometers 60 located in the four tobacco hanging layers in the tobacco curing barn are shown. Figure 1 It can be seen that through the change curves of the dry-bulb temperature and the wet-bulb temperature along the horizontal axis of time of the four hygrometers 60, further control can be achieved, and the temperature and humidity change law of the tobacco curing process can be summarized, thereby facilitating the improvement of the curing effect.

[0065] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0066] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration and are not intended to limit the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A tobacco kiln, characterized in that, The application relates to a tobacco curing barn, comprising: a barn body (10) having an internal space (IS); a furnace (20) arranged at the bottom of the barn body (10) and used for forming heat for curing tobacco; a tobacco hanging structure (30) arranged in the internal space (IS) and having multiple tobacco hanging layers with different heights and used for hanging tobacco in each tobacco hanging layer; and a flow guide device (40) arranged in the internal space (IS) and used for guiding hot air flow on the side of the internal space (IS) close to the furnace (20) to an upper position of the internal space (IS) away from the furnace (20).

2. The tobacco barn of claim 1, wherein, The flow guide device (40) comprises a flow guide pipeline (41) and an air flow driving mechanism (42) connected with the flow guide pipeline (41) and used for driving air flow in the flow guide pipeline (41).

3. The tobacco barn of claim 2 wherein, Each tobacco hanging layer of the tobacco hanging structure (30) is fixedly connected with the outer contour of different height positions of the flow guide pipeline (41).

4. The tobacco barn of claim 3 wherein, The tobacco hanging layer comprises a blocking beam (31) which is fixedly bound with the flow guide pipeline (41) through a first binding material (32).

5. The tobacco kiln according to claim 2, characterized in that, The air flow driving mechanism (42) is arranged at one end of the flow guide pipeline (41) close to the furnace (20), and the air flow driving mechanism (42) is fixedly bound with the flow guide pipeline (41) through a sealing piece (43) and a second binding material (44), and the sealing piece (43) forms an external interface for communicating with the air flow driving mechanism (42).

6. The tobacco barn of claim 5 wherein, The side wall of the barn body (10) is provided with a moisture removal pipe (50) extending into the internal space (IS), and the external interface is selectively connected with the end of the moisture removal pipe (50).

7. The tobacco barn of claim 6 wherein, The moisture removal pipe (50) comprises an aluminum foil pipe (51), and in the state that the external interface is connected with the end of the moisture removal pipe (50), the aluminum foil pipe (51) is fixedly connected with the air flow driving mechanism (42) through a clamp (52) and is inserted into the external interface.

8. The tobacco kiln of claim 2, wherein, The distance between the end of the flow guide pipeline (41) close to the furnace (20) and the top of the furnace (20) in the vertical direction is 70-110 cm.

9. A tobacco kiln according to any one of claims 2 to 8, characterised in that, The air flow driving mechanism (42) comprises a circulating fan (421) capable of realizing bidirectional operation.

10. The tobacco kiln of claim 1, wherein, The outer wall of the barn body (10) is wrapped with a heat preservation layer (11) which seals the barn body (10).

11. The tobacco kiln of claim 1, wherein, The application further comprises: a temperature and humidity meter (60) arranged in at least part of the multiple tobacco hanging layers and configured to detect the temperature and humidity of the tobacco hanging layer where the temperature and humidity meter (60) is arranged.

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