Combined tobacco baking oven

Abstract

The present invention provides a combined tobacco baking box. It comprises three independent baking boxes, each of which has an independent air supply device and exhaust gas discharge device, and each baking box is equipped with an independent temperature and humidity sensor, wind speed sensor and lighting device to control independent temperature, humidity and wind speed; and the three independent baking boxes are all equipped with a baffle plate to adjust the thickness of the baked tobacco; each baking box adopts a double-layer heat insulation design to prevent the internal heat from being transmitted to the outside. The combined tobacco baking box described in the present invention can accurately control the thickness, temperature, humidity and baking time of the baked tobacco layer, thereby providing different baking processes for tobacco, and has good flexibility.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco equipment, and in particular to a combined tobacco baking box capable of providing different baking processes according to different requirements. Background Art

[0002] Tobacco processing technology is one of the most critical core technologies for blended cigarettes. The effect of tobacco processing will directly affect the style and taste of blended products. The level of tobacco processing technology, to a certain extent, measures the technical content and market competitiveness of such a blended product. The research on tobacco processing technology is generally inseparable from the research on the feeding system and baking process. There are also a variety of specifications of tobacco baking devices on the market to meet the various needs of tobacco processing technology research.

[0003] The tobacco baking device includes a baking box and a tobacco conveying mechanism. During the baking process, the tobacco conveying mechanism conveys the tobacco to the baking box, the baking box conveys hot air to the tobacco to bake the tobacco, and then the tobacco conveying mechanism conveys the baked tobacco away from the baking box. However, in the tobacco baking device of the prior art, the tobacco baking box has a simple structure and single performance, and cannot complete different baking processes for tobacco according to different requirements for tobacco products, and has poor working flexibility; in addition, the baking box will generate a high temperature during the tobacco baking process, and the operator is easily burned if he accidentally touches the tobacco baking box, and the safety performance is not high. Summary of the invention

[0004] The present invention aims to overcome at least one defect of the existing tobacco baking box and provide a combined tobacco baking box, which can change the tobacco baking environment, provide different tobacco baking processes, and has a heat insulation device to prevent workers from being burned.

[0005] To this end, the present invention provides a combined tobacco baking box that can complete different baking processes for tobacco according to different requirements for finished tobacco products and has high safety performance, including three independent baking boxes, the tobacco is baked in the three independent baking boxes in sequence, each of the baking boxes is connected to a temperature control device and a humidity control device in a one-to-one correspondence, and each of the baking boxes is installed with an independent air supply device and an exhaust gas exhaust device in a one-to-one correspondence.

[0006] By adopting the above technical solution, each baking box is equipped with an independent air supply and exhaust gas discharge device, so that the tobacco in each baking box can be baked independently, and the air supply wind speed can be adjusted individually; in addition, each baking box can have independent temperature and humidity, thereby providing a three-stage baking process to meet the needs of different requirements for tobacco baking effects.

[0007] The present invention is further configured as follows: each of the baking boxes is of double-layer design, with heat insulation cotton sandwiched between the inner and outer layers.

[0008] By adopting the above technical solution, the three baking boxes all use double-layer insulation devices to ensure that after being turned on for a long time, the tobacco baking device can contact the surface with excessively high temperature, which will not cause harm to the human body, and the safety performance is good.

[0009] The present invention is further configured as follows: the three independent baking ovens include a first baking oven, a second baking oven and a third baking oven;

[0010] The air supply device corresponding to the first baking box is located below the first baking box, and the exhaust gas discharge device corresponding to the first baking box is located above the first baking box. The air flow direction in the first baking box is from bottom to top, and the length of the first baking box is L1;

[0011] The air supply device corresponding to the second baking oven is located below the second baking oven, the exhaust gas discharge device corresponding to the second baking oven is located above the second baking oven, the air flow direction in the second baking oven is from bottom to top, and the length of the second baking oven is L2;

[0012] The air supply device corresponding to the third baking box is located above the third baking box, and the exhaust gas discharge device corresponding to the third baking box is located below the third baking box. The airflow direction in the third baking box is from top to bottom, and the length of the third baking box is L3.

[0013] By adopting the above technical solution, the tobacco baking area is divided into three sections, and the directions of heat flow are blowing from bottom to top, from bottom to top, and from top to bottom, respectively, to ensure that the upper and lower sides of the tobacco are all-round baked, thereby improving the baking effect and work efficiency.

[0014] The present invention is further configured such that the positions of the first baking box, the second baking box and the third baking box are interchangeable.

[0015] By adopting the above technical solution, the positions of the three can be adjusted, so that the direction of the airflow passing through the tobacco in sequence during baking can be adjusted. By adjusting the relative positions of the three, a better tobacco baking process can be explored, and the flexibility is good.

[0016] The present invention is further configured as follows: each baking box is provided with baffle plates at both left and right ends along the tobacco inlet and outlet direction, and the baffle plates are configured to control the thickness of the tobacco entering each baking box;

[0017] Each baking box is provided with a regulating device for controlling the up and down movement of the baffle plate.

[0018] By adopting the above technical solution, the thickness of the tobacco entering each baking box can be accurately controlled, and the thickness of the tobacco can be changed according to different requirements.

[0019] The present invention is further configured as follows: each baking box is provided with an air blowing port, and an air blowing pipe is installed at the air blowing port. The air blowing pipe leads into the baking box and is configured to ventilate and clean the tobacco attached to the baking box.

[0020] By adopting the above technical solution, high-pressure gas can be introduced into the blowing pipe to clean the residual tobacco or tobacco scraps in the baking box, which has a simple structure and is easy to operate.

[0021] The present invention is further configured as follows: each of the baking boxes is provided with an observation window, and an observation glass is installed in cooperation with the observation window.

[0022] Furthermore, a lighting device is provided in each baking box.

[0023] By adopting the above technical solution, after turning on the lighting device, the state of the tobacco in the baking box can be clearly seen through the observation window of the baking box, which is convenient for observation and the tobacco baking conditions can be adjusted in time, with good controllability.

[0024] The present invention is further configured as follows: each of the baking boxes is provided with an exhaust hole, and the exhaust gas discharge device is cooperatively installed at the exhaust hole;

[0025] The exhaust gas emission device includes a control valve configured to control a cross-sectional size of the exhaust hole.

[0026] By adopting the above technical solution, the control valve can adjust the size of the exhaust flow in each baking box, so that each baking box has a controllable and easy-to-adjust independent temperature and air flow rate, which can meet different tobacco baking processes.

[0027] The present invention is further configured as follows: the lengths of the first baking box, the second baking box and the third baking box are configured in proportion, and the length ratio is L1:L2:L3=1:1:0.75.

[0028] By adopting the above technical solution, other baking parameters in the same baking space and different baking spaces during the tobacco baking process can be analyzed, which is convenient for analysis and subsequent adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Hereinafter, some specific embodiments of the present invention will be described in detail with reference to the accompanying drawings and embodiments in a non-restrictive manner. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale.

[0030] Figure 1 It is a schematic structural diagram of a tobacco baking device with a combined tobacco baking box of the present invention;

[0031] Figure 2 The schematic diagram is a structural diagram of one of the baking boxes of the combined tobacco baking box of the present invention.

[0032] Among them, 1. first baking box; 1a. exhaust hole; 2. second baking box; 3. third baking box; 4. air supply device; 5. exhaust gas discharge device; 6. control valve; 7. regulating device; 8. air blowing pipe; 9. baffle plate; 10. wind speed sensor; 11. lighting device; 12. observation window; 13. temperature and humidity sensor. DETAILED DESCRIPTION

[0033] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention.

[0034] Figure 1 A tobacco baking device with a combined tobacco baking box according to the present invention, such as Figure 1 As shown, the combined tobacco baking oven includes three independent baking ovens, namely a first baking oven 1, a second baking oven 2 and a third baking oven 3. Tobacco enters from a tobacco inlet, passes through the three baking ovens in sequence, is baked and then collected.

[0035] In one embodiment of the present invention, the first baking box 1, the second baking box 2 and the third baking box 3 are detachably arranged in sequence on the frame of the tobacco baking device, and the baked tobacco first passes through the first baking box 1 for baking, then enters the second baking box 2 for baking, and finally enters the third baking box 3 for baking. Among them, the three independent baking boxes are each equipped with an independent air supply device 4 and an exhaust gas exhaust device 5, and the air supply device 4 preferably uses a hot air blower to send hot air into the baking box to bake the tobacco.

[0036] During the implementation of the above embodiment, the air supply device 4 corresponding to the first baking box 1 is installed below the first baking box 1, and the exhaust gas discharge device 5 corresponding to the first baking box 1 is installed above the first baking box 1; similarly, the air supply device 4 corresponding to the second baking box 2 is installed below the second baking box 2, and the exhaust gas discharge device 5 corresponding to the second baking box 2 is installed above the second baking box 2; when the tobacco shreds pass through the first baking box 1 and the second baking box 2, they are baked by the hot air flow flowing from bottom to top to the first baking box 1 and the second baking box 2. As for the third baking box 3, the air supply device 4 corresponding to the third baking box 3 is installed above the third baking box 3, and the exhaust gas discharge device 5 corresponding to the third baking box 3 is installed below the third baking box 3, so that the tobacco shreds entering the third baking box 3 are baked by the hot air flow from top to bottom. In this way, the lowest end of the tobacco shreds can be baked by contacting the hot air flow first in the first baking box 1 and the second baking box 2, and the top end of the tobacco shreds can be baked by contacting the hot air flow first in the third baking box 3, thereby ensuring that the tobacco shreds are baked in all directions, thereby improving the tobacco shreds baking effect and tobacco shreds baking efficiency.

[0037] Different baking processes are required for baking different tobacco shreds. In order to facilitate the exploration of better baking processes during tobacco shred baking, another embodiment of the present invention is that the relative positions of the first baking box 1, the second baking box 2 and the third baking box 3 are adjustable, that is, the tobacco shreds can pass through the first baking box 1, the second baking box 2 and the third baking box in sequence, or can pass through the first baking box 1, the third baking box 3 and the second baking box 2 in sequence, or can pass through the third baking box 3, the first baking box 1 and the second baking box 2 in sequence. A further embodiment of the present invention is that the lengths of the first baking box 1, the second baking box 2 and the third baking box 3 are proportionally arranged, the length of the first baking box 1 is L1, the length of the second baking box 2 is L2, and the length of the third baking box 3 is L3, and the preferred ratio is L1:L2:L3=1:1:0.75.

[0038] A further embodiment of the present invention is that a baffle plate 9 is installed on each baking box, and two baffle plates 9 are installed on the first baking box 1, the second baking box 2 and the third baking box 3, and the two baffle plates 9 are located on the left and right sides of each baking box along the tobacco inlet and outlet direction. A regulating device 7 for controlling the up and down movement of the baffle plate 9 is installed on the first baking box 1, the second baking box 2 and the third baking box 3. The lower the position of the baffle plate 9 is, the smaller the distance between the lowest end of the baffle plate 9 and the conveying chain plate for conveying tobacco is, and the smaller the thickness of the tobacco that can be conveyed is. One mode of the control device 7 can use a screw nut transmission mode to complete the adjustment of the baffle plate 9, mainly through holes are set on the first baking box 1, the second baking box 2 and the third baking box 3, and the axis of the through hole is set parallel to the up and down movement direction of the baffle plate 9, and a threaded rod is set on the baffle plate 9, and a nut is connected to the through hole for rotation, and the threaded rod is installed with the nut thread, and the nut is rotated to drive the threaded rod to move up and down, thereby driving the baffle plate 9 to move up and down to complete the adjustment of the thickness of the tobacco. Of course, the structure of the control device 7 is not limited to the above-mentioned mode.

[0039] When the combined tobacco baking oven bakes tobacco, in order to facilitate the cleaning of tobacco or debris attached to the first baking oven 1, the second baking oven 2 and the third baking oven 3, a further embodiment of the present invention is that an air blowing port is provided on the first baking oven 1, the second baking oven 2 and the third baking oven 3, and an air blowing pipe 8 is installed at the air blowing port. One end of the air blowing pipe 8 extends into the first baking oven 1, the second baking oven 2 or the third baking oven 3, and the other end is connected to an air supply device such as an air pump (not shown in the figure). When the air pump is working, the air delivered is blown into the first baking oven 1, the second baking oven 2 or the third baking oven 3 through the air blowing pipe 8, so that tobacco or debris attached to the side wall can be blown off and then taken out.

[0040] In addition, observation windows 12 are provided on the first baking box 1, the second baking box 2 and the third baking box 3. Two observation windows 12 are provided on each baking box. The two observation windows 12 are symmetrically distributed on both sides of the first baking box 1, the second baking box 2 or the third baking box 3. A lighting device 11 is installed on the side where one of the observation windows 12 is located, and the lighting device 11 is directly facing one of the observation windows 12. An observation glass is installed at the observation window 12, so that the working conditions in the first baking box 1, the second baking box 2 and the third baking box 3 can be clearly viewed. When the lighting device 11 is turned on, the first baking box 1, the second baking box 2 and the third baking box 3 can be illuminated, which is convenient for the observer to observe.

[0041] Since the first baking oven 1, the second baking oven 2 and the third baking oven 3 are three independent baking ovens, independent air supply devices 4 and exhaust gas exhaust devices 5 are installed, and independent humidity and temperature can be set in each baking oven, and independent wind speed can be controlled. In the present invention, preferably, a temperature and humidity sensor 13 and a wind speed sensor 10 are installed on the first baking oven 1, the second baking oven 2 and the third baking oven 3, and the temperature and humidity sensor 13 and the wind speed sensor 10 corresponding to each baking oven detect and adjust the temperature, humidity and wind speed in the corresponding baking oven.

[0042] In addition, exhaust holes 1a are provided on the first baking box 1, the second baking box 2 and the third baking box 3. A control valve 6 is installed at the exhaust hole 1a. The control valve 6 can adjust the cross-sectional size of the exhaust hole 1a. When the cross-sectional size of the exhaust hole 1a increases, the hot air flow rate in the baking box is faster. When the cross-sectional size of the exhaust hole 1a decreases, the hot air flow rate in the baking box slows down. A control valve is installed on each baking box, and an independent air supply device 4 and an exhaust gas exhaust device 5 are installed on each baking box, so that the wind speed in each baking box can be controlled independently.

[0043] The first baking box 1, the second baking box 2 and the third baking box 3 can individually adjust the thickness of the tobacco entering their respective baking boxes, can have independent temperature, humidity and hot air speed, and can individually control the baking time in each baking box. Therefore, the tobacco can be baked in three stages with different baking processes, thereby achieving higher quality tobacco.

[0044] In order to prevent operators from being scalded due to excessively high temperatures during tobacco baking, a further embodiment of the present invention is that the first baking oven 1, the second baking oven 2 and the third baking oven 3 all adopt a double-layer heat insulation device, that is, the first baking oven 1, the second baking oven 2 and the third baking oven 3 are all configured as double layers, including an inner layer and an outer layer, and heat insulation cotton is arranged between the inner layer and the outer layer for heat insulation to prevent the high temperature in the first baking oven 1, the second baking oven 2 and the third baking oven 3 from being transmitted out.

[0045] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A combined tobacco baking box, installed on the frame of a tobacco baking device, used for baking tobacco, characterized in that: It comprises three independent baking boxes, the tobacco shreds are baked in the three independent baking boxes in sequence, each of the baking boxes is connected to a temperature control device and a humidity control device in a one-to-one correspondence, and each of the baking boxes is equipped with an independent air supply device and an exhaust gas exhaust device in a one-to-one correspondence; The three independent baking ovens include a first baking oven, a second baking oven and a third baking oven; The air supply device corresponding to the first baking box is located below the first baking box, and the exhaust gas discharge device corresponding to the first baking box is located above the first baking box. The air flow direction in the first baking box is from bottom to top, and the length of the first baking box is L1; The air supply device corresponding to the second baking oven is located below the second baking oven, the exhaust gas discharge device corresponding to the second baking oven is located above the second baking oven, the air flow direction in the second baking oven is from bottom to top, and the length of the second baking oven is L2; The air supply device corresponding to the third baking box is located above the third baking box, and the exhaust gas discharge device corresponding to the third baking box is located below the third baking box. The airflow direction in the third baking box is from top to bottom, and the length of the third baking box is L3; The lengths of the first baking box, the second baking box and the third baking box are arranged in proportion, and the length ratio is L1:L2:L3=1:1:0.75; Each of the baking boxes is provided with baffle plates at both left and right ends along the direction of the tobacco inlet and outlet, and the baffle plates are configured to control the thickness of the tobacco layer entering each of the baking boxes; Each baking box is provided with a regulating device for controlling the up and down movement of the baffle plate.

2. The combined tobacco baking oven according to claim 1, characterized in that: Each of the baking boxes is of double-layer design, with heat insulation cotton sandwiched between the inner and outer layers.

3. The combined tobacco baking oven according to claim 1, characterized in that: The positions of the first baking box, the second baking box and the third baking box are interchangeable.

4. The combined tobacco baking oven according to claim 1, characterized in that: Each of the baking boxes is provided with an air blowing port, and an air blowing pipe is installed at the air blowing port. The air blowing pipe leads into the baking box and is configured to ventilate and clean the tobacco attached to the baking box.

5. The combined tobacco baking oven according to claim 1, characterized in that: Each of the baking boxes is provided with an observation window, and an observation glass is installed in cooperation with the observation window.

6. The combined tobacco baking oven according to claim 1, characterized in that: Each baking box is provided with a lighting device.

7. The combined tobacco baking oven according to claim 1, characterized in that: Each of the baking boxes is provided with an exhaust hole, and the exhaust gas discharge device is installed in cooperation with the exhaust hole; The exhaust gas emission device includes a control valve configured to control a cross-sectional size of the exhaust hole.

Images