Loose leaf roasting apparatus

Abstract

The utility model discloses a kind of loose leaf baking equipment, it is related to tobacco processing technical field, wherein, loose leaf baking equipment includes shell, first heating structure and second heating structure;Shell inside forms baking chamber;First heating structure includes main heat source piece and heat dissipation fan, main heat source piece is installed in one side of baking chamber, to heat the air of one side of baking chamber, to form hot air, heat dissipation fan is installed above main heat source piece, to spread hot air in baking chamber;Second heating structure includes the auxiliary heat source piece installed in baking chamber, auxiliary heat source piece is used to assist main heat source piece to heat the air of baking chamber;The technical scheme provided by the utility model effectively improves baking efficiency, ensures baking uniformity, improves baking efficiency, and is suitable for a variety of loose leaf materials, easy to operate, and maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to the field of tobacco processing technology, and in particular to a loose leaf drying device. Background Technology

[0002] Tobacco curing involves stacking loose tobacco leaves in baskets, then placing them in curing equipment to remove moisture. The temperature inside the curing equipment needs to be slowly raised to 40-70℃ and maintained at a stable temperature for more than ten hours.

[0003] Baking equipment often uses a large-area, low-temperature heat source to uniformly heat the interior, resulting in high maintenance costs.

[0004] Therefore, how to maintain a stable internal temperature in baking equipment and reduce maintenance costs has become an urgent problem to be solved in this field. Utility Model Content

[0005] The main purpose of this invention is to provide a loose leaf baking device that aims to maintain a stable internal temperature and reduce maintenance costs.

[0006] To achieve the above objectives, the loose leaf baking device proposed in this utility model includes a shell, a first heating structure, and a second heating structure; a baking chamber is formed inside the shell; the first heating structure includes a main heat source and a cooling fan, the main heat source being installed on one side of the baking chamber to heat the air on one side of the baking chamber to form hot air, and the cooling fan being installed above the main heat source to distribute the hot air throughout the baking chamber; the second heating structure includes an auxiliary heat source installed inside the baking chamber, the auxiliary heat source being used to assist the main heat source in heating the air in the baking chamber.

[0007] In one embodiment, an opening is provided on the other side of the baking chamber; the second heating structure includes an auxiliary fan, which is disposed near the opening to introduce air from the opening.

[0008] In one embodiment, the main heat source includes a plurality of carbon crystal heating plates, which are spaced apart along a first horizontal direction.

[0009] In one embodiment, the auxiliary heat source includes a heating element disposed at the bottom of the baking chamber for heating the air at the bottom of the baking chamber; and / or, the auxiliary heat source includes an infrared heating element disposed at the top of the baking chamber for emitting infrared rays toward the interior of the baking chamber.

[0010] In one embodiment, the bottom surface of the baking chamber is provided with a receiving groove; the auxiliary heat source includes a heating element disposed at the bottom of the baking chamber, the heating element including a heating plate and a protective net; the heating plate is installed in the receiving groove; the protective net is fixedly installed at the opening of the receiving groove.

[0011] In one embodiment, a support member is provided in the receiving groove, and the support member is horizontally offset from the heating plate to support the protective net; the protective net includes a reinforcing part and a plurality of protective parts; the reinforcing part is fixedly disposed above the support member; each of the protective parts is connected to the reinforcing part and has a plurality of ventilation holes.

[0012] In one embodiment, the reinforcing portion extends along a second horizontal direction; two protective portions are provided, with the two protective portions located on both sides of the reinforcing portion.

[0013] In one embodiment, the wall of the receiving tank is provided with a first vent to allow air from outside the housing to enter the receiving tank; and / or, the top of the housing is provided with a second vent to exhaust some of the hot air from the top of the baking chamber.

[0014] In one embodiment, the loose leaf baking equipment further includes a plurality of loose leaf storage boxes for placing loose leaves to be processed. The loose leaf storage boxes are stacked inside the baking chamber, and the outer surface of each loose leaf storage box is provided with a plurality of ventilation holes.

[0015] In one embodiment, the fan is rotatably mounted on the inner wall of the housing along a first horizontal direction to distribute the air into the baking chamber.

[0016] The technical solution of this utility model heats the air through the main heat source component and distributes the hot air evenly through the cooling fan, and further heats the auxiliary heat source component. It adopts a dual heating structure design, which effectively improves the baking efficiency, ensures baking uniformity, and is suitable for a variety of loose leaf materials. It is easy to operate and has low maintenance costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a structure of an embodiment of the loose leaf baking device provided by this utility model;

[0019] Figure 2A schematic diagram of another embodiment of the loose leaf baking device provided by this utility model;

[0020] Figure 3 for Figure 2 Internal structure diagram;

[0021] Figure 4 for Figure 2 A front view diagram of the internal structure;

[0022] Figure 5 for Figure 2 A side view of the internal structure.

[0023] Explanation of icon numbers:

[0024] 100. Loose Leaf Baking Equipment; 1. Outer Shell; 11. Baking Cavity; 12. Opening; 13. Receiving Slot; 14. First Ventilation Opening; 15. Second Ventilation Opening; 2. First Heating Structure; 21. Main Heat Source Component; 211. Carbon Crystal Heating Plate; 22. Cooling Fan; 3. Second Heating Structure; 31. Auxiliary Heat Source Component; 311. Auxiliary Heat Source Component; 311. Heating Component; 3111. Heating Plate; 3112. Protective Net; 3112A. Reinforcing Part; 3112B. Protective Part; 32. Auxiliary Fan.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0027] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0028] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] Tobacco curing involves stacking loose tobacco leaves in baskets, then placing them into curing equipment to remove moisture. The temperature inside the curing equipment needs to be slowly increased to 40-70℃ and maintained at a stable temperature for more than ten hours. Such curing equipment often uses a large-area, low-temperature heat source to even out the internal temperature, resulting in high maintenance costs.

[0030] Based on this, this utility model proposes a loose leaf baking device 100.

[0031] Please see Figure 1 and Figure 5 In one embodiment of this utility model, the loose leaf baking device 100 includes a shell 1, a first heating structure 2, and a second heating structure 3; a baking chamber is formed inside the shell 1; the first heating structure 2 includes a main heat source 21 and a cooling fan 22, the main heat source 21 is installed on one side of the baking chamber to heat the air on one side of the baking chamber to form hot air, and the cooling fan 22 is installed above the main heat source 21 to distribute the hot air in the baking chamber; the second heating structure 3 includes an auxiliary heat source 31 installed in the baking chamber, the auxiliary heat source 31 is used to assist the main heat source 21 in heating the air in the baking chamber.

[0032] The technical solution of this utility model heats the air through the main heat source component 21 and distributes the hot air evenly through the cooling fan 22, and further heats the auxiliary heat source component 31. The dual heating structure design effectively improves the baking efficiency, ensures baking uniformity, and is suitable for a variety of loose leaf materials. It is easy to operate and has low maintenance costs.

[0033] The cooling fan 22 is positioned so that the air outlet direction is upward, which promotes the flow of hot air from bottom to top, enhances convection, and evenly covers the loose leaf material in the baking chamber, avoiding local overheating or underheating, thereby further improving the baking quality.

[0034] Furthermore, the outer shell 1 is made of high-temperature resistant material to ensure that it will not deform during long-term use. The baking chamber is equipped with an adjustable temperature control system to monitor and precisely control the temperature in real time to adapt to the needs of different materials. The auxiliary heat source 31 can be flexibly started and stopped according to actual needs to further optimize energy consumption.

[0035] In one embodiment of this utility model, an opening 12 is provided on the other side of the baking chamber; the second heating structure 3 includes an auxiliary fan 32, which is disposed near the opening 12 to introduce air from the opening 12. With this arrangement, the auxiliary fan 32 introduces external cold air into the baking chamber, where the descending cold air forms convection with the hot air, accelerating heat transfer, uniformly heating the loose leaf material, and improving the baking effect.

[0036] In one embodiment of this utility model, the main heat source 21 includes a plurality of carbon crystal heating plates 211, which are spaced apart along a first horizontal direction. This arrangement ensures uniform temperature across the carbon crystal heating plates 211, preventing single-point overheating, improving heating efficiency, and stably heating the rising air to the specified temperature, preventing turbulence caused by uneven temperature and ensuring uniform temperature within the baking chamber.

[0037] Please see Figure 2 and Figure 3 In one embodiment of the present invention, the auxiliary heat source 31 includes a heating element 311 disposed at the bottom of the baking chamber for heating the air at the bottom of the baking chamber.

[0038] In one embodiment of the present invention, the auxiliary heat source 31 includes an infrared heating element disposed on the top of the baking chamber for emitting infrared rays toward the interior of the baking chamber.

[0039] In one embodiment of this utility model, the auxiliary heat source 31 includes a heating element 311 disposed at the bottom of the baking chamber for heating the air at the bottom of the baking chamber; the auxiliary heat source 31 also includes an infrared heating element disposed at the top of the baking chamber for emitting infrared rays into the interior of the baking chamber. With this configuration, the bottom heating element 311 and the top infrared heating element work together to form a three-dimensional heating environment, ensuring uniform temperature in all corners of the baking chamber, further improving baking uniformity. Simultaneously, the infrared heating element can quickly penetrate the surface of the material, accelerating internal moisture evaporation, shortening baking time, and improving overall efficiency.

[0040] In one embodiment of this utility model, the bottom surface of the baking chamber is provided with a receiving groove 13; the auxiliary heat source component 31 further includes a heating element 311 disposed at the bottom of the baking chamber, the heating element 311 including a heating plate and a protective net 3112; the heating plate is installed in the receiving groove 13; the protective net 3112 is fixedly installed in the opening of the receiving groove 13. With this arrangement, the heating plate dissipates heat evenly through the protective net 3112, and avoids direct contact with the material, ensuring safety; the protective net 3112 is designed for easy cleaning, extending the service life of the equipment and improving the overall baking stability.

[0041] In one embodiment of this utility model, a support member is provided in the receiving groove 13. The support member is horizontally offset from the heating plate to support the protective net 3112. The protective net 3112 includes a reinforcing part 3112A and multiple protective parts 3112B. The reinforcing part 3112A is fixedly disposed above the support member. Each of the protective parts 3112B is connected to the reinforcing part 3112A and has multiple ventilation holes. With this arrangement, the support member and the protective net 3112 are structurally stable, the ventilation hole design promotes air circulation, ensures uniform heat distribution, improves the baking effect, and facilitates maintenance, extending the service life of the equipment.

[0042] In one embodiment of this utility model, the reinforcing part 3112A extends along a second horizontal direction, and two protective parts 3112B are provided, with the two protective parts 3112B respectively disposed on both sides of the reinforcing part 3112A. This arrangement allows the reinforcing part 3112A to form a central support, while the protective parts 3112B on both sides are symmetrically distributed, enhancing the overall structural stability, ensuring uniform heat coverage of the material, optimizing the baking effect, improving equipment durability, and also serving as a manual passageway for convenient operator access, further optimizing the user experience and improving work efficiency.

[0043] In one embodiment of this utility model, the wall of the receiving groove 13 is provided with a first ventilation opening 14 to allow air from outside the housing to enter the receiving groove 13. This arrangement introduces fresh air through the first ventilation opening 14, promoting air circulation within the groove, preventing localized overheating, further optimizing temperature distribution, improving baking uniformity, ensuring even heating of the material, and resulting in better baking quality.

[0044] In one embodiment of this utility model, a second vent 15 is provided on the top of the outer shell 1 to exhaust some of the hot air from the top of the baking chamber. This arrangement allows the second vent 15 to effectively regulate the indoor temperature, prevent overheating at the top, create convection, accelerate the exhaust of hot air, maintain a constant temperature in the baking chamber, improve baking efficiency, and ensure uniform baking and stable quality of the materials.

[0045] Please see Figure 4In one embodiment of this utility model, the wall of the receiving groove 13 is provided with a first vent 14 for allowing air from outside the housing to enter the receiving groove 13; the top of the outer shell 1 is provided with a second vent 15 for discharging some of the hot air from the top of the baking chamber. With this arrangement, the first vent 14 and the second vent 15 work together to form effective convection, promote air circulation, avoid localized overheating, ensure uniform baking temperature, and simultaneously discharge excess moisture, improving baking quality and extending the service life of the equipment.

[0046] In one embodiment of this utility model, the loose leaf baking device 100 further includes multiple loose leaf storage boxes for holding loose leaves to be processed. The loose leaf storage boxes are stacked inside the baking chamber, and each loose leaf storage box has multiple ventilation holes on its outer surface. With this arrangement, during the air convection process inside the baking chamber 11, air can enter the storage box through the heat dissipation holes, fully contact the loose leaves, and then flow out through the heat dissipation holes, realizing the circulation of air inside and outside the storage box.

[0047] In one embodiment of this invention, the fan is rotatably mounted on the inner wall of the outer casing 1 along a first horizontal direction to distribute the air into the baking chamber. This arrangement, with the spaced-apart carbon crystal heating plates 211, increases the contact area between the air and the heating plates. As the air flows through the channels between the heating plates, it undergoes thorough heat exchange with them, causing the temperature to rise rapidly and forming a strong upward airflow. This strong upward airflow drives the surrounding airflow, enhancing the intensity of air convection within the entire baking chamber 11, allowing heat to be transferred more quickly to all corners, further improving the baking efficiency of the loose leaves. Simultaneously, the high thermal conductivity of the carbon crystal heating plates 211 ensures uniform heat distribution, avoids localized overheating, improves baking uniformity, ensures consistent heating of the loose leaves, and results in a better baking effect.

[0048] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A loose leaf drying device, characterized in that, include: The outer shell forms an internal baking chamber; The first heating structure includes a main heat source and a cooling fan. The main heat source is installed on one side of the baking chamber to heat the air on one side of the baking chamber to form hot air. The cooling fan is installed above the main heat source to distribute the hot air into the baking chamber. as well as, The second heating structure includes an auxiliary heat source component installed in the baking chamber, which assists the main heat source component in heating the air in the baking chamber.

2. The loose leaf drying equipment as described in claim 1, characterized in that, An opening is provided on the other side of the baking chamber; The second heating structure includes an auxiliary fan, which is positioned near the opening to assist the heat dissipation fan in distributing the hot air into the baking chamber.

3. The loose leaf drying equipment as described in claim 1, characterized in that, The main heat source includes multiple carbon crystal heating plates, which are spaced apart along a first horizontal direction.

4. The loose leaf drying equipment as described in claim 1, characterized in that, The auxiliary heat source includes a heating element disposed at the bottom of the baking chamber for heating the air at the bottom of the baking chamber; and / or, The auxiliary heat source includes an infrared heating element disposed on the top of the baking chamber for emitting infrared rays into the interior of the baking chamber.

5. The loose leaf drying equipment as described in claim 1, characterized in that, The bottom surface of the baking chamber is provided with a receiving groove; The auxiliary heat source also includes a heating element disposed at the bottom of the baking chamber, the heating element comprising: a heating plate installed within the receiving groove; and, A protective net is fixedly installed at the opening of the receiving groove.

6. The loose leaf drying equipment as described in claim 5, characterized in that, A support member is provided in the receiving groove. The support member is horizontally offset from the heating plate to support the protective net. The protective net includes: The reinforcing part is fixedly installed above the support member; Multiple protective sections are provided, each of which is connected to the reinforcing section and has multiple ventilation holes.

7. The loose leaf drying equipment as described in claim 6, characterized in that, The reinforcing part extends along the second horizontal direction; two protective parts are provided, with the two protective parts located on both sides of the reinforcing part.

8. The loose leaf drying equipment as described in claim 5, characterized in that, The wall of the receiving tank is provided with a first ventilation opening to allow air from outside the outer casing to enter the receiving tank; and / or, The top of the outer casing has a second vent to exhaust some of the hot air from the top of the baking chamber.

9. The loose leaf drying equipment as described in claim 1, characterized in that, The loose leaf baking equipment also includes multiple loose leaf storage boxes for placing loose leaves to be processed. The loose leaf storage boxes are stacked inside the baking chamber, and multiple ventilation holes are opened on the outer surface of each loose leaf storage box.

10. The loose leaf drying equipment as described in claim 1, characterized in that, The fan is rotatably mounted on the inner wall of the outer casing along a first horizontal direction to distribute the air into the baking chamber.

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