Balanced heat supply curing barn system

Abstract

A heating mechanism is arranged in the middle of a heat supply chamber, a circulating fan with an upward air outlet is arranged on the upper portion of the heat supply chamber, an air uniformizing chamber is communicated with the upper portion of the heat supply chamber, a curing barn is located below the air uniformizing chamber, the curing barn and the air uniformizing chamber are separated through an air distribution screen, and the lower portion of the curing barn is communicated with the lower portion of the heat supply chamber. The dehumidification device is communicated with the lower portion of the curing barn and / or the lower portion of the heat supply chamber, air inlet sections of the air inlet pipes are located on the upper portion of the heat supply chamber and provided with suction fans, air distribution sections of the air inlet pipes extend from top to bottom in the curing barn, and the multiple air distribution pipes are arranged side by side in the curing barn in the vertical direction at intervals and communicated with the lower ends of the air distribution sections. A plurality of groups of air outlet holes are formed in the peripheral walls of the air distribution pipes in the axial direction, and up-down gaps of the air distribution pipes are suitable for hanging tobacco leaves. Compared with the prior art, heat is evenly distributed in the curing barn in the vertical direction and the horizontal direction, the overall drying consistency of tobacco leaves in the curing barn is good, and the overall drying quality of the tobacco leaves is guaranteed.

Description

Technical Field

[0001] The utility model relates to tobacco leaf baking, in particular to a balanced heating baking room system. Background Art

[0002] In tobacco leaf baking, the heat is transferred from top to bottom (i.e., a hot air flow descending baking room).

[0003] It was actually found that during the baking process, there were certain temperature differences in the upper, middle and lower layers in the vertical direction and in different areas in the horizontal direction. The drying consistency of the tobacco leaves was poor during the baking process, and the overall quality of the tobacco leaves after baking in the baking room was not ideal. Utility Model Content

[0004] The utility model aims to solve at least one of the above-mentioned technical problems, and provides a balanced heating curing room system to solve the problem of temperature uniformity at different positions and ensure the overall quality of tobacco leaves after curing in the curing room.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A balanced heating baking room system, comprising a heating chamber, an air distribution chamber, a baking room, a dehumidification device and an auxiliary heating device, wherein the heating chamber is provided with a fresh air inlet, the air distribution chamber is connected to the upper part of the heating chamber, a heating mechanism is provided in the middle part of the heating chamber, a circulating fan with an air outlet facing upward is provided in the upper part of the heating chamber, the baking room is located below the air distribution chamber, the baking room and the air distribution chamber are separated by an air distribution mesh plate, the lower part of the baking room is connected to the lower part of the heating chamber, and the dehumidification device is connected to the lower part of the baking room And / or the lower part of the heating chamber, the auxiliary heating device includes a suction fan, an air inlet pipe and a plurality of branch air pipes, the air inlet section of the air inlet pipe is located at the upper part of the heating chamber, and the suction fan is arranged, the branch air section of the air inlet pipe extends from top to bottom in the curing room, the plurality of branch air pipes are spaced apart and arranged side by side in the up and down directions in the curing room, and are all connected to the lower end of the branch air section, the peripheral wall of the branch air pipe is provided with a plurality of groups of air outlet holes along the axial direction, and the upper and lower gaps of the plurality of branch air pipes are suitable for hanging tobacco leaves.

[0007] Compared with the prior art, the beneficial effects of the present application include: heat is distributed more evenly in the vertical and horizontal directions in the curing room, the overall drying consistency of the tobacco leaves in the curing room is better, and the overall quality of the tobacco leaf drying is guaranteed.

[0008] As an improvement of the above technical solution, the aperture of the air distribution mesh plate is 8±4mm, and the aperture of the air outlet of the air distribution duct is 3-8mm.

[0009] As an improvement of the above technical solution, the air inlet of the suction fan faces the side wall of the air outlet of the circulation fan.

[0010] As an improvement of the above technical solution, a tobacco hanging rack is provided in the curing room, and the tobacco hanging rack has a plurality of tobacco hanging layers spaced apart in the up and down directions, and the height between the lowest tobacco hanging layer and the bottom of the curing room is greater than the length of the tobacco leaves.

[0011] As an improvement of the above technical solution, the heating mechanism includes a furnace and a heat exchange pipe system, the furnace is connected to the smoke exhaust pipe through the heat exchange pipe system, and the heat exchange pipe system is suitable for conducting the heat of the smoke to the inner chamber of the heating chamber.

[0012] As an improvement of the above technical solution, the fresh air inlet is suitable for supplying air toward the heat exchange pipe system.

[0013] As an improvement of the above technical solution, the fresh air inlet is configured as a shutter structure, and the fresh air inlet is composed of a plurality of air inlet gaps spaced apart in the up and down directions, and the air inlet gaps are inclined to inlet air from bottom to top.

[0014] As an improvement of the above technical solution, the heating chamber is divided into an upper chamber and a lower chamber by a partition, the partition is provided with a through hole suitable for docking the circulating fan, the circulating fan is arranged at the inner bottom of the upper chamber, the furnace and the heat exchange pipe system are arranged in the lower chamber, and the lower part of the lower chamber is connected to the lower part of the baking room.

[0015] As an improvement of the above technical solution, the lower chamber is provided with a maintenance window suitable for disassembling and assembling the furnace and the heat exchange pipe system, the maintenance window is enclosed with a side cover, the side cover is provided with the fresh air inlet, fuel inlet, and ash shoveling port, and the lower end of the side cover is provided with a docking port suitable for docking with the dehumidification device.

[0016] As an improvement of the above technical solution, the fresh air inlet is arranged as a shutter structure, and the blades of the fresh air inlet are provided with a flow channel, one end of the flow channel is connected to the lower part of the heating chamber and / or the lower part of the baking room through an air pipe, and the other end is connected to the dehumidification device, and the heat of the moisture discharged by the baking room system is suitable for preheating the fresh air. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0018] Figure 1 This is a structural schematic diagram of a balanced heating oven system according to an embodiment of the utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view showing a balanced heating barn system;

[0020] Figure 3 for Figure 2The structural schematic diagram of the balanced heating barn system after the smoke hanging rack is hidden is shown;

[0021] Figure 4 for Figure 2 A schematic diagram of the smoke rack structure of a balanced heating barn system is shown;

[0022] Figure 5 for Figure 1 A schematic diagram showing the structure of a balanced heating barn system from a side view;

[0023] Figure 6 for Figure 5 The schematic diagram shows the structure of the balanced heating barn system after the smoke hanging rack is hidden.

[0024] The accompanying drawings are only one specific embodiment of the present invention, and the form and structure of this specific embodiment should not limit the expansion of other embodiments.

[0025] Heating chamber 100, heating mechanism 110, furnace 111, heat exchange pipe system 112, circulating fan 120, fresh air inlet 130;

[0026] Air chamber 200;

[0027] Baking room 300;

[0028] Air distribution screen 400;

[0029] Auxiliary heating device 500, suction fan 510, air inlet pipe 520, air distribution pipe 530, air outlet 531;

[0030] Cigarette hanging rack 600, cigarette hanging rack 610;

[0031] Exhaust pipe 700;

[0032] Side cover 800. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6The utility model provides a balanced heating baking room system, comprising a heating chamber 100, an air distribution chamber 200, a baking room 300, a dehumidification device and an auxiliary heating device 500. The heating chamber 100 is provided with a fresh air inlet 130, the air distribution chamber 200 is connected to the upper part of the heating chamber 100, a heating mechanism 110 is provided in the middle part of the heating chamber 100, a circulating fan 120 with an air outlet facing upward is provided in the upper part of the heating chamber 100, the baking room 300 is located below the air distribution chamber 200, the baking room 300 and the air distribution chamber 200 are separated by an air distribution mesh plate 400, the lower part of the baking room 300 is connected to the lower part of the heating chamber 100, The wet device is connected to the lower part of the curing room 300 and / or the lower part of the heating chamber 100. The auxiliary heating device 500 includes a suction fan 510, an air inlet pipe 520 and a plurality of branch air pipes 530. The air inlet section of the air inlet pipe 520 is located at the upper part of the heating chamber 100, and the suction fan 510 is arranged. The branch air section of the air inlet pipe 520 extends from top to bottom in the curing room 300. The plurality of branch air pipes 530 are spaced apart and arranged side by side in the up and down directions in the curing room 300, and are all connected to the lower end of the branch air section. The peripheral wall of the branch air pipe 530 is provided with a plurality of groups of air outlet holes 531 along the axial direction. The upper and lower gaps between the plurality of branch air pipes 530 are suitable for hanging tobacco leaves.

[0035] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 It can be understood that each group of air outlet holes 531 is provided with one or more; preferably, each group of air outlet holes 531 is provided with multiple air outlet holes, and the multiple air outlet holes 531 are distributed at intervals along the circumference of the air distribution duct 530; better, two adjacent groups of air outlet holes 531 are staggered.

[0036] Reference Figure 2 and Figure 5 The operation process of the utility model is as follows: in the heating step, the heating mechanism 110 dissipates heat to the inner chamber of the heating chamber 100. Based on the heat rise effect and the air dissipation effect of the circulating fan 120, the middle and upper parts of the heating chamber 100 are relatively hot;

[0037] Hot air circulation step, starting the circulation fan 120, the hot air flows through the heating mechanism 110, the upper part of the heating chamber 100, the air distribution chamber 200, the baking room 300, and the lower part of the heating chamber 100 in sequence;

[0038] Among them, the air distribution chamber 200 and the baking room 300 are both of relatively large area, and the air distribution chamber 200 and the baking room 300 are separated by the air distribution mesh plate 400, so the hot air blown into the air distribution chamber 200 from the upper part of the heating chamber 100 mainly fills the air distribution chamber 200 first to be uniformed and decelerated to form a horizontal average heat surface, and the horizontal average heat surface sinks to the baking room 300, and the temperature in the baking room 300 is relatively uniform in the horizontal direction; based on the hot air circulation effect, the horizontal average heat surface effectively drives the moisture heat flow downward smoothly;

[0039] In addition, the air distribution section extends in the up-down direction, the upper end of the air distribution section is directly connected to the air inlet section, and no air distribution duct 530 is provided, the multiple air distribution ducts 530 are all connected to the lower end of the air distribution section, and the upper and lower gaps of the air distribution ducts 530 are used to hang tobacco leaves, that is, the gap between two adjacent tobacco leaf layers is defined as another wind-evening space, and each wind-evening space has a corresponding air distribution duct 530 for auxiliary heating; the air distribution section extends in the up-down direction (blowing directly downward), the multiple air distribution ducts 530 are all connected to the lower end of the air distribution section, the heat distribution gradient derived from the multiple air distribution ducts 530 in the baking room 300 is gradually reduced from bottom to top, and the heat distribution gradient derived from the wind-evening chamber 200 in the baking room 300 is gradually reduced from top to bottom, so the wind-evening chamber 200 and the multiple air distribution ducts 530 cooperate with each other, and the heat in the baking room 300 is more evenly distributed in the up-down direction.

[0040] In the dehumidification and air supply step, the moisture discharged to the lower part of the baking room 300 or the lower part of the heating chamber 100 by the circulating air is eliminated by the dehumidification device. When the baking room system has negative pressure due to dehumidification, fresh air is added through the fresh air inlet 130. The fresh air can come from dry natural air or from a dryer.

[0041] It is understandable that the dehumidification device may be provided in the form of air conditioning or other means.

[0042] Compared with the prior art, the beneficial effects of the present application include: heat is distributed more evenly in the vertical and horizontal directions in the curing room, the overall drying consistency of the tobacco leaves in the curing room is better, and the overall quality of the tobacco leaf drying is guaranteed.

[0043] In some embodiments of the present invention, the aperture of the air distribution mesh plate 400 is 8±4 mm, and the aperture of the air outlet hole 531 of the air distribution duct 530 is 3-8 mm.

[0044] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 In some embodiments of the present invention, the air inlet of the suction fan 510 faces the side wall of the air outlet of the circulation fan 120, and the air balancing chamber 200 distributes more hot air than the auxiliary heating device 500.

[0045] Reference Figures 2 to 6 In some embodiments of the utility model, a tobacco hanging rack 600 is provided in the curing room 300, and the tobacco hanging rack 600 is provided with a plurality of tobacco hanging layer racks 610 spaced apart in the up-down direction, and the height between the lowest tobacco hanging layer rack 610 and the inner bottom of the curing room 300 is greater than the length of tobacco leaves, so that a dehumidification space is formed between the lowest tobacco leaf layer and the inner bottom of the curing room 300.

[0046] Reference Figures 1 to 3 , Figure 5 and Figure 6In some embodiments of the present invention, the heating mechanism 110 includes a furnace 111 and a heat exchange pipe system 112. The furnace 111 is connected to the smoke exhaust pipe 700 through the heat exchange pipe system 112. The heat exchange pipe system 112 is suitable for conducting the heat of the smoke to the inner chamber of the heating chamber 100.

[0047] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 In some embodiments of the present invention, the fresh air inlet 130 is suitable for supplying air toward the heat exchange pipe system 112, so that the fresh air sucked in by the negative pressure of the heating chamber 100 is quickly heated up.

[0048] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 In some embodiments of the utility model, the fresh air inlet 130 is set as a shutter structure, and the fresh air inlet 130 is composed of a plurality of air inlet gaps spaced apart in the up and down directions. The air inlet gaps are inclined from bottom to top, and the fresh air sucked in by the negative pressure of the heating chamber 100 quickly moves upward.

[0049] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 In some embodiments of the utility model, the heating chamber 100 is divided into an upper chamber and a lower chamber by a partition, the partition is provided with a through hole suitable for connecting to the circulation fan 120, the circulation fan 120 is arranged at the inner bottom of the upper chamber, the furnace 111 and the heat exchange pipe system 112 are arranged in the lower chamber, and the lower part of the lower chamber is connected to the lower part of the baking room 300.

[0050] Reference Figure 2 , Figure 3 , Figure 5 and Figure 6 In some embodiments of the utility model, the lower chamber is provided with a maintenance window suitable for disassembling and assembling the furnace 111 and the heat exchange pipe system 112, and the maintenance window is encapsulated with a side cover 800, and the side cover 800 is provided with a fresh air inlet 130, a fuel inlet, and an ash shovel port, and the lower end of the side cover 800 is provided with a docking port suitable for docking a dehumidification device.

[0051] In some embodiments of the utility model, the fresh air inlet 130 is configured as a louver structure, and the blades of the fresh air inlet 130 are provided with a flow channel, one end of the flow channel is connected to the lower part of the heating chamber 100 and / or the lower part of the baking room 300 through an air pipe, and the other end is connected to the dehumidification device. The heat of the moisture discharged by the baking room system is suitable for preheating the fresh air.

[0052] The above embodiments are only used to illustrate the technical solution of the utility model but not to limit it. Any modification or equivalent substitution that does not deviate from the spirit and scope of the utility model shall be included in the scope of the technical solution of the utility model.

Claims

1. A balanced heating system for a baking room, characterized in that: include: The heating room is provided with a fresh air inlet; An air distribution chamber is connected to the upper part of the heating chamber, a heating mechanism is arranged in the middle part of the heating chamber, and a circulating fan with an air outlet facing upward is arranged in the upper part of the heating chamber; A baking room is located below the air distribution chamber, the baking room and the air distribution chamber are separated by an air distribution mesh plate, and the lower part of the baking room is connected to the lower part of the heating chamber; A dehumidification device connected to the lower part of the baking room and / or the lower part of the heating chamber; The auxiliary heating device includes a suction fan, an air inlet pipe and a plurality of branch air pipes. The air inlet section of the air inlet pipe is located at the upper part of the heating chamber, and the suction fan is arranged. The branch air section of the air inlet pipe extends from top to bottom in the curing room. The plurality of branch air pipes are arranged side by side in the vertical direction in the curing room and are all connected to the lower end of the branch air section. The peripheral wall of the branch air pipe is provided with a plurality of groups of air outlet holes along the axial direction. The upper and lower gaps between the plurality of branch air pipes are suitable for hanging tobacco leaves.

2. The balanced heating barn system according to claim 1, characterized in that: The aperture of the air distribution mesh plate is 8±4mm, and the aperture of the air outlet of the air distribution pipe is 3-8mm.

3. The balanced heating barn system according to claim 1, characterized in that: The air inlet of the suction fan faces the side wall of the air outlet of the circulation fan.

4. The balanced heating barn system according to claim 1, characterized in that: The curing room is provided with a tobacco hanging rack, and the tobacco hanging rack is provided with a plurality of tobacco hanging layer racks spaced apart in the up-and-down direction, and the height between the lowest tobacco hanging layer rack and the bottom of the curing room is greater than the length of tobacco leaves.

5. The balanced heating barn system according to any one of claims 1 to 4, characterized in that: The heating mechanism comprises a furnace and a heat exchange pipe system, the furnace is connected to a smoke exhaust pipe via the heat exchange pipe system, and the heat exchange pipe system is suitable for conducting the heat of smoke to the inner chamber of the heating chamber.

6. The balanced heating barn system according to claim 5, characterized in that: The fresh air inlet is suitable for supplying air toward the heat exchange pipe system.

7. The balanced heating barn system according to claim 6, characterized in that: The fresh air inlet is configured as a shutter structure, and the fresh air inlet is composed of a plurality of air inlet gaps spaced apart in the up-and-down directions, and the air inlet gaps are configured to inlet air obliquely from bottom to top.

8. The balanced heating barn system according to claim 5, characterized in that: The heating chamber is divided into an upper chamber and a lower chamber by a partition, and the partition is provided with a through hole suitable for connecting with the circulating fan. The circulating fan is arranged on the inner bottom of the upper chamber, and the furnace and the heat exchange pipe system are arranged in the lower chamber. The lower part of the lower chamber is connected to the lower part of the baking room.

9. The balanced heating barn system according to claim 8, characterized in that: The lower chamber is provided with a maintenance window suitable for disassembling and assembling the furnace and the heat exchange pipe system, the maintenance window is enclosed with a side cover, the side cover is provided with the fresh air inlet, fuel inlet, and ash shoveling port, and the lower end of the side cover is provided with a docking port suitable for docking with the dehumidification device.

10. The balanced heating barn system according to claim 6, characterized in that: The fresh air inlet is configured as a shutter structure, and the blades of the fresh air inlet are provided with a flow channel, one end of the flow channel is connected to the lower part of the heating chamber and / or the lower part of the baking room through an air pipe, and the other end is connected to the dehumidification device. The heat of the moisture discharged by the baking room system is suitable for preheating the fresh air.

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