Heating system of cut tobacco dryer

Abstract

The utility model discloses a heating system of a cut tobacco dryer, which comprises a support, at least one layer of heat supply device is arranged at the upper end of the support, the heat supply device is connected with a heat supply box through a header pipe, the heat supply device comprises an outer fixing frame, the left end and the right end of the outer fixing frame are provided with calandria systems, and each calandria system comprises a head side flow dividing pipe and a tail side flow collecting pipe. A plurality of groups of transverse calandria pipes are arranged between the head side flow dividing pipe and the tail side flow collecting pipe, every two adjacent transverse calandria pipes are connected through a heat conduction seat, a plurality of upper embedding grooves are formed in the top of each heat conduction seat, the upper portions of the upper embedding grooves are connected with a placement frame, and the placement frames are used for placing tobacco shreds to be baked. According to the heating system of the cut tobacco dryer, efficient transfer and utilization of heat energy can be achieved, meanwhile, it is guaranteed that cut tobacco is evenly heated, and the baking effect and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco, in particular to a heating system of a tobacco drying machine. Background Art

[0002] The heating system of a tobacco drying machine refers to the part used to heat the tobacco to dry or process it. Tobacco drying machines are commonly used in the tobacco industry to make cigarettes and other tobacco products. These heating systems play a key role in the tobacco drying process, ensuring that the tobacco is dried at the appropriate temperature to achieve the desired moisture content and texture. The heating system of existing tobacco drying machines generates heat through resistive heating elements and transfers it to the tobacco, causing it to heat up and evaporate moisture. Or it uses steam as a heat source to transfer heat to the tobacco to dry it.

[0003] The existing tobacco drying machine heating system has problems such as poor heat conduction performance and uneven heat conduction, which leads to energy waste and poor tobacco drying effect. Poor heat conduction performance will cause the temperature in some areas to be too high, while other areas will be at a lower temperature, which means that the heating system needs to invest more energy in some areas to reach the required temperature, while other areas are relatively idle. This uneven heat conduction will lead to energy waste because the system must compensate for the temperature difference with higher energy consumption. Due to the uneven heat conduction, some tobacco may be overheated, while other tobacco may not reach the required degree of dryness. This uneven heat conduction will affect the quality and consistency of the tobacco, resulting in unstable quality of the final product. The heating system cannot effectively transfer heat to every part of the tobacco, and the production process may take longer to complete, affecting the overall production efficiency. Because the heating system cannot ensure that each tobacco is heated and dried to the same extent, the consistency of the final product may be affected. This may lead to consumer dissatisfaction with product quality and affect brand reputation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a heating system for a wire drying machine, which overcomes the above-mentioned disadvantages of the prior art, maximizes the utilization efficiency of thermal energy, and thus reduces energy consumption.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0006] A heating system for a tobacco drying machine comprises: a bracket, at least one layer of heating device is arranged on the upper end of which, the heating device is connected to a heating box through a main pipe, the heating device comprises an external fixed frame, left and right ends of the external fixed frame are provided with a pipe system, the pipe system comprises a head side shunt pipe and a tail side collector, a plurality of groups of transverse pipes are arranged between the head side shunt pipe and the tail side collector, two adjacent transverse pipes are connected through a heat conductive seat, a plurality of upper embedded grooves are arranged on the top of the heat conductive seat, the upper part of the upper embedded grooves is connected to an installation frame, and the installation frame is used to place tobacco to be dried.

[0007] Preferably, in the above technical solution, the heating device includes a bottom layer heating device, a middle layer heating device and a top layer heating device, and the bottom layer heating device and the middle layer heating device, as well as the middle layer heating device and the top layer heating device are fixedly connected by a plurality of columns respectively.

[0008] Preferably, in the above technical solution, side slots are symmetrically provided on the left and right sides of the heat-conducting seat, and the two side slots are matched and sleeve-connected with two adjacent transverse rows of pipes.

[0009] Preferably, in the above technical solution, the transverse row of pipes and the heat-conducting seat are both made of heat-conducting material.

[0010] Preferably, in the above technical solution, a heat conducting plate is provided at the bottom of the placement frame, and the heat conducting plate comprises a plate body and a plurality of heat conducting plugs located at the bottom of the plate body, and the heat conducting plugs are snap-connected with the upper embedding groove.

[0011] Preferably, in the above technical solution, the distance between two adjacent thermally conductive plugs is an integer multiple of the distance between two adjacent upper embedding grooves, and the density of the upper embedding grooves is greater than the density of the thermally conductive plugs, so that the thermally conductive plugs can be selectively inserted into part of the upper embedding grooves.

[0012] Preferably, in the above technical solution, the main pipe includes an air inlet main pipe and an air exhaust main pipe, the air inlet main pipe is connected to the head-side branch pipe, and the air exhaust main pipe is connected to the tail-side collector pipe.

[0013] Preferably, in the above technical solution, the heating box includes a cabinet body, in which a blower and a heating box are arranged, the air outlet of the blower is connected to the heating box, the air outlet of the heating box is connected to the air inlet main pipe of the main pipe, and the exhaust main pipe of the main pipe is connected to the air inlet of the blower.

[0014] Preferably, in the above technical solution, a thermocouple and a heating device are provided in the heating box, and the controller is used to control the heating degree and heating timing of the heating device by monitoring the value of the thermocouple.

[0015] The above technical solution of the utility model has the following beneficial effects:

[0016] The above solution of the present application uses the design of the pipe system so that the hot air flow can evenly enter each horizontal pipe from the heating box, and then enter the fan circulation system through the manifold, ensuring that the heat energy does not overflow but is effectively used for heating. This design can maximize the utilization efficiency of heat energy, thereby reducing energy consumption.

[0017] The close contact between the transverse pipes and the heat-conducting seat of the present application ensures the rapid transfer of heat energy. The design of the heat-conducting seat effectively transfers heat energy from the pipes to the placement frame, thereby ensuring uniform heating of the tobacco in the placement frame and improving the heating effect. The clamping relationship between the heat-conducting plug and the upper embedding groove and the structural design of the bracket enhance the stability of the entire system. This helps to reduce vibration and displacement during the operation of the equipment and improves the reliability and durability of the equipment.

[0018] The structural design of the present application takes into account the disassembly and assembly between components, making maintenance and cleaning more convenient. This helps to reduce the time and cost required for equipment maintenance and improves the maintainability and operability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0020] Figure 1 It is a schematic diagram of the heating system structure of the silk drying machine of the present utility model.

[0021] Figure 2 It is an enlarged structural schematic diagram of the bottom floor heating device;

[0022] Figure 3 It is a schematic diagram of the structure of the thermal seat;

[0023] Figure 4 It is a schematic diagram of the structure of the placement frame;

[0024] Figure 5 It is another perspective structural schematic diagram of the placement frame.

[0025] In the figure: 1- bracket; 2- bottom layer heating device; 3- middle layer heating device; 4- top layer heating device; 5- heating box; 6- main pipe; 7- mounting frame; 71- heat transfer plug; 8- pipe system; 81- head side shunt pipe; 82- tail side collector pipe; 83- transverse pipe; 84- heat transfer seat; 85- side slot; 86- upper embedded slot. DETAILED DESCRIPTION

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0027] like Figure 1 As shown, a heating system of a wire drying machine mainly includes: a bracket 1, a heating device, a heating box 5 and a main pipe 6. In Example 1 of the present application, the heating device includes a bottom heating device 2, a middle heating device 3, and a top heating device 4. Of course, the present application is not limited to this. Those skilled in the art can select the appropriate number of layers of heating devices according to their needs. The bottom heating device 2 and the middle heating device 3 are respectively provided with a pipe system 8 on the top of the bottom heating device 2, the middle heating device 3, and the top heating device 4. The pipe system 8 is connected to the main pipe 6 respectively.

[0028] like Figure 2 and Figure 3 As shown, the pipe system 8 includes a head side shunt pipe 81, a tail side confluence pipe 82, a transverse pipe 83, a heat conducting seat 84, a side clamping groove 85 and an upper embedding groove 86. Among them, the bottom layer heating device 2, the middle layer heating device 3 and the top layer heating device 4 respectively include independent external fixing frames, and a plurality of columns are fixedly connected between the bottom layer heating device 2 and the middle layer heating device 3, and between the middle layer heating device 3 and the top layer heating device 4.

[0029] like Figure 2 As shown, a head side shunt pipe 81 and a tail side collector pipe 82 are installed at the left and right ends of the outer fixed frame of the bottom layer heating device 2, the middle layer heating device 3 or the top layer heating device 4, a series of transverse pipes 83 are connected between the head side shunt pipe 81 and the tail side collector pipe 82 on both sides, and a heat conductive seat 84 is mounted on the adjacent transverse pipes 83.

[0030] like Figure 3 As shown, the heat-conducting seat 84 includes side slots 85 on both sides, and two adjacent transverse tubes 83 are respectively matched and fitted in the side slots 85. A series of upper grooves 86 are arranged on the top of the heat-conducting seat 84. The transverse tubes 83 and the heat-conducting seat 84 are respectively made of heat-conducting materials, preferably copper or aluminum alloy materials.

[0031] like Figure 4 and Figure 5As shown, a layer of heat-conducting plate is compounded at the bottom of the placement frame 7, and the heat-conducting plate includes a plate body and a series of heat-conducting plugs 71 evenly distributed at the bottom of the plate body. When the placement frame 7 is assembled to the upper side of the pipe system 8, the heat-conducting plugs 71 are specifically clamped in the upper embedded grooves 86, and the spacing between adjacent heat-conducting plugs 71 is an integer multiple of the spacing between adjacent upper embedded grooves 86. The density of the upper embedded grooves 86 is usually set to be greater than that of the heat-conducting plugs 71, so that the heat-conducting plugs 71 can be selectively inserted into part of the upper embedded grooves 86.

[0032] like Figure 1 In the figure, the main pipe 6 includes an air inlet main pipe and an exhaust main pipe. The air inlet main pipe is connected to the head side shunt pipe 81, and the exhaust main pipe is connected to the tail side confluence pipe 82. The heating box 5 includes a cabinet, a blower and a heating box located in the cabinet, a heating device is arranged in the heating box, and the heating box is a closed structure with a safety exhaust valve installed on the top. The air outlet of the blower is connected to the heating box, and the air outlet of the heating box is connected to the air inlet main pipe, and a thermocouple is installed in the heating box. The controller controls the heating degree and heating timing of the heating device by monitoring the value of the thermocouple. The exhaust main pipe is connected to the air inlet of the blower.

[0033] Based on the above structure, the hot air flow from the heating box enters each transverse row pipe 83 evenly through the head side shunt pipe 81, and then enters the fan circulation system after converging from the tail side converging pipe 82, ensuring that the hot air does not overflow, and the heat energy is efficiently used to heat each transverse row pipe 83. At the same time, since the transverse row pipe 83 has a close contact heat conduction relationship with the corresponding installed heat conduction seat 84, and the upper embedded groove 86 has a close clamping relationship with the heat conduction plug 71 of the placement frame 7, this clamping relationship not only ensures the stability of the placement frame 7, but also effectively transfers the heat energy of the transverse row pipe 83 to the placement frame 7 in a close contact manner, thereby ensuring the baking effect of the tobacco in the placement frame 7.

[0034] The heating system of the silk drying machine of the present application, when in use:

[0035] First, prepare the heating system, including checking the integrity and installation of each component. Make sure that all components of the pipe system are correctly installed on the top of the bottom heating unit, the middle heating unit and the top heating unit, and that the heat conduction plate of the mounting frame has been installed above the pipe system.

[0036] Then, the blower and the heating device in the heating box are started to form a hot air flow in the heating box. The heating device can be adjusted by a controller to set the heating temperature and time as needed.

[0037] When the hot air flow in the heating box reaches the set temperature, the tobacco can be placed in the placement frame. Since the placement frame is tightly connected with the heat-conducting plug in the upper groove of the pipe system, the tobacco will be evenly heated. The hot air flow in the heating box enters the horizontal pipes in the pipe system through the first side shunt pipe, and then quickly transfers heat energy to the placement frame through the heat-conducting seat to ensure that the tobacco is evenly heated.

[0038] Afterwards, the hot air flows back into the heating box through the tail manifold to form a cycle. During the heating process, by monitoring the value of the thermocouple in the heating box, the controller can adjust the working state of the heating device in real time to ensure that the temperature in the heating box remains within the set range, thereby ensuring the baking effect of the tobacco.

[0039] When the tobacco reaches the required degree of baking, the heating device and the blower are turned off to end the heating process. After the system cools down, the baked tobacco can be taken out for subsequent processing or packaging.

[0040] Through the above process, the heating system effectively utilizes heat energy, ensures uniform heating of tobacco, and improves processing efficiency and product quality. At the same time, the stability and ease of operation of the system are also guaranteed, providing users with a convenient use experience.

[0041] Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various choices and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is limited by the claims and their equivalents.

Claims

1. A heating system for a tofu drying machine, characterized in that: include: A support (1) is provided with at least one layer of heating device at its upper end, the heating device being connected to a heating box (5) via a main pipe (6), the heating device comprising an external fixed frame, the left and right ends of the external fixed frame being provided with a pipe system (8), the pipe system (8) comprising a head side shunt pipe (81) and a tail side converging pipe (82), a plurality of groups of transverse pipes (83) being provided between the head side shunt pipe (81) and the tail side converging pipe (82), two adjacent transverse pipes (83) being connected via a heat conducting seat (84), a plurality of upper embedded grooves (86) being provided at the top of the heat conducting seat (84), the upper part of the upper embedded grooves (86) being connected to a placement frame (7), the placement frame (7) being used for placing tobacco to be baked.

2. The heating system of the tofu drying machine according to claim 1, characterized in that: The heating device comprises a bottom layer heating device (2), a middle layer heating device (3) and a top layer heating device (4); the bottom layer heating device (2) and the middle layer heating device (3), and the middle layer heating device (3) and the top layer heating device (4) are respectively fixedly connected via a plurality of columns.

3. The heating system of the tofu drying machine according to claim 1, characterized in that: Side clamping grooves (85) are symmetrically provided on the left and right sides of the heat conducting seat (84), and the two side clamping grooves (85) are matched and sleeve-connected with two adjacent transverse rows of pipes (83).

4. The heating system of the tofu drying machine according to claim 1, characterized in that: The transverse row of pipes (83) and the heat-conducting seat (84) are both made of heat-conducting material.

5. The heating system of the tofu drying machine according to claim 1, characterized in that: A heat-conducting plate is arranged at the bottom of the placement frame (7), the heat-conducting plate comprising a plate body and a plurality of heat-conducting plugs (71) located at the bottom of the plate body, the heat-conducting plugs (71) being snap-connected to the upper embedding groove (86).

6. The heating system of the tofu drying machine according to claim 5, characterized in that: The distance between two adjacent heat-conducting plugs (71) is an integral multiple of the distance between two adjacent upper embedding grooves (86), and the density of the upper embedding grooves (86) is greater than the density of the heat-conducting plugs (71), so that the heat-conducting plugs (71) can be selectively inserted into a portion of the upper embedding grooves (86).

7. The heating system of the tofu drying machine according to claim 1, characterized in that: The main pipe (6) comprises an air inlet main pipe and an air outlet main pipe, the air inlet main pipe is connected to the head side flow divider pipe (81), and the air outlet main pipe is connected to the tail side converging pipe (82).

8. The heating system of the tofu drying machine according to claim 7, characterized in that: The heating box (5) comprises a cabinet body, in which a blower and a heating box are arranged, the air outlet of the blower is connected to the heating box, the air outlet of the heating box is connected to the air inlet main pipe of the main pipe (6), and the air exhaust main pipe of the main pipe (6) is connected to the air inlet of the blower.

9. The heating system of the tofu drying machine according to claim 8, characterized in that: The heating box is provided with a thermocouple and a heating device, and the controller is used to control the heating degree and heating timing of the heating device by monitoring the value of the thermocouple.

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