Burner feeding device for tobacco leaf curing

Abstract

The utility model belongs to the technical field of flue-cured tobacco baking equipment, and particularly relates to a burner feeding device for flue-curing tobacco leaves, which comprises a feeding pipe and a spiral feeding device, a filter plate is arranged in the feeding pipe and is used for dividing an inner cavity of the feeding pipe into an upper cavity and a lower cavity; the upper end and the lower end of the filter plate are each provided with a spiral feeding device, and the spiral feeding devices are arranged in the feeding pipe. A smashing box is arranged at the bottom of the tail end of the filter plate, a smashing roller assembly is arranged in the smashing box, and a discharging pipe is arranged at the tail end of the feeding pipe. According to the device, continuous feeding and smashing in the feeding process can be achieved, namely, the feeding mechanism, the smashing mechanism and the screening mechanism are integrally arranged in the feeding pipe, and therefore it can be guaranteed that biomass particles can continuously convey materials with qualified granularity into a combustion device, the combustion efficiency is guaranteed, and the normal baking process of tobacco leaves is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of flue-cured tobacco baking equipment, in particular to a burner feeding device for tobacco leaf baking. Background Art

[0002] Biomass pellet burners are widely used in various thermal energy fields such as boilers, industrial incineration, smelting, food processing, building materials, tobacco baking, etc. Burners using biomass pellets as fuel usually consist of a feeding device, a combustion device, and a control device.

[0003] In the prior art, the feeding device of the burner is generally implemented as a spiral feeding mechanism, which has a simple overall structure and is convenient for pushing biomass particles. However, as the types of biomass particles increase, the diameters of the prepared biomass particles are also different. Due to the preparation process, the diameters of the same biomass particles will also vary. Therefore, in view of the above situation, in order to ensure the combustion efficiency of the burner, a screening device is generally used for screening, and biomass particles of qualified particle size are fed into the burner, and large-particle biomass particles are fed into a crushing device for crushing and then fed into the burner. This will make the entire process more complicated, and screening and breaking operations cannot be performed while feeding, resulting in low feeding efficiency, different diameters of the discharged particles, and difficulty in ensuring combustion efficiency, which seriously affects the normal baking process of tobacco leaves. Utility Model Content

[0004] In view of the technical problems existing in the background technology, the utility model provides a feeding device for a burner for baking tobacco leaves.

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

[0006] A feeding device for a burner for tobacco baking comprises a feeding pipe and a spiral feeding device. A filter plate is provided inside the feeding pipe for separating the inner cavity of the feeding pipe into two upper and lower cavities. A spiral feeding device is provided at the upper and lower ends of the filter plate, respectively, and the spiral feeding device is provided inside the feeding pipe; a crushing box is provided at the bottom end of the filter plate, a crushing roller assembly is provided in the crushing box, and a discharge pipe is provided at the end of the feeding pipe.

[0007] Optionally, the spiral feeding device includes a rotating shaft 1, a rotating shaft 2, a spiral blade 1 and a spiral blade 2, the rotating shaft 1 is provided with spiral blade 1, and the rotating shaft 2 is provided with spiral blade 2; a transmission box is provided at one end of the feeding tube, a feeding motor is provided on the outside of the transmission box, the feeding motor and the rotating shaft 1 are connected for transmission, a pulley 1 is provided on the rotating shaft 1, and a pulley 2 is provided on the rotating shaft 2, the pulley 1 and the pulley 2 are connected for transmission through a belt 1, and the belt 1, pulley 1 and pulley 2 are all provided in the transmission box.

[0008] Optionally, a cover body is detachably provided at the end of the transmission box, and the discharge pipe is provided at the bottom end of the cover body; the discharge pipe is provided opposite to the second rotating shaft.

[0009] Optionally, a positioning hole is provided on the cover body, and the rotating shaft is passed through the positioning hole.

[0010] Optionally, the crushing roller assembly includes a crushing roller and a connecting shaft. The two connecting shafts are rotatably arranged in the crushing box. The outer walls of the connecting shafts are provided with crushing rollers, and the two crushing rollers are symmetrically arranged.

[0011] Optionally, a pulley three is provided on the rotating shaft one, a gear is provided at one end of the connecting shaft, the two gears on the two connecting shafts are meshed and connected to each other, a pulley four is provided on one of the connecting shafts, and the pulley four and the pulley three are connected for transmission through a belt two.

[0012] Optionally, a mounting hole is provided on the cover body, the connecting shaft passes through the mounting hole to the outside of the cover body, and the gear, pulley three, pulley four, and belt two are provided on the outside of the cover body.

[0013] Optionally, the end of the discharge pipe is connected to the feed port of the combustion device.

[0014] Optionally, the feed pipe and the combustion device are arranged on the chassis.

[0015] Optionally, the filter plate is configured to be semicircular in shape, and arc-shaped slots are respectively provided on both sides of the inner wall of the feeding tube, and the filter plate is clamped in the slots.

[0016] The utility model has the following advantages and beneficial effects:

[0017] The utility model provides a feed device for a tobacco leaf baking burner, wherein a filter plate is provided inside a feed pipe, and two spiral feed devices are provided inside the feed pipe. During the feeding process, the filter plate screens the material, and the large particles located above the feed pipe are continuously fed into a crushing box for crushing. Ultimately, all qualified small particles of biomass are discharged through a discharge pipe by the spiral feed device below. The device can achieve continuous feeding and crushing during the feeding process, that is, the feeding, crushing, and screening mechanisms are integrated into the feed pipe, thereby ensuring that biomass particles of qualified particle size can be continuously transported into the combustion device, ensuring combustion efficiency and ensuring the normal baking process of tobacco leaves. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A front view of the feeding device and the combustion device provided by the utility model;

[0019] Figure 2A structural diagram of the feed pipe provided by the utility model;

[0020] Figure 3 for Figure 2 Right view of;

[0021] Figure 4 This is one of the structural diagrams of the filter plate, cover body and discharge pipe provided by the utility model;

[0022] Figure 5 This is the second structural diagram of the filter plate, cover body and discharge pipe provided by the utility model;

[0023] Figure 6 for Figure 5 Left view of;

[0024] Figure 7 This is a structural diagram of the spiral feeding mechanism provided by the utility model;

[0025] Figure 8 This is a structural diagram of the feed device of the burner for tobacco baking provided by the utility model;

[0026] Figure 9 for Figure 8 A local enlarged view of point a in the middle;

[0027] Figure 10 This is a cross-sectional view of a feed device for a tobacco leaf baking burner provided by the present invention;

[0028] Figure 11 for Figure 10 Cross-sectional view along the AA direction;

[0029] Figure 12 A structural diagram of the crushing roller assembly provided by the utility model;

[0030] Icons: 1-chassis, 2-combustion device, 3-transmission box, 31-pulley one, 32-belt one, 33-pulley two, 4-feeding motor, 41-rotating shaft one, 42-spiral blade one, 43-rotating shaft two, 44-spiral blade two, 5-feeding pipe, 51-shaft hole, 52-slot, 53-limiting surface, 54-limiting protrusion, 6-lower hopper, 7-discharge pipe, 71-cover, 72-positioning hole, 73-mounting hole, 8-filter plate, 81-crushing box, 82-connecting hole, 9-crushing roller, 91-connecting shaft, 92-gear, 93-pulley four, 94-belt two, 95-pulley three. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0033] Example

[0034] like Figures 1 to 12 As shown, a feeding device of a burner for tobacco baking includes a feeding pipe 5 and a spiral feeding device. A filter plate 8 is provided inside the feeding pipe 5 for separating the inner cavity of the feeding pipe 5 into two upper and lower cavities. A spiral feeding device is provided at the upper and lower ends of the filter plate 8, and the spiral feeding device is provided inside the feeding pipe 5; a crushing box 81 is provided at the bottom end of the filter plate 8, and a crushing roller assembly is provided in the crushing box 81 for crushing large-particle biomass particles screened out during the feeding process. A discharge pipe 7 is provided at the end of the feeding pipe 5.

[0035] Specifically, the spiral feeding device includes a rotating shaft 41, a rotating shaft 2 43, a spiral blade 1 42 and a spiral blade 2 44. The rotating shaft 41 is provided with a spiral blade 1 42, and the rotating shaft 2 43 is provided with a spiral blade 2 44; one end of the feeding tube 5 is provided with two axial holes 51, and the two axial holes 51 are vertically arranged. The outer wall of the feeding tube 5 on the side where the axial holes 51 are located is tightly provided with a transmission box 3, and a feeding motor 4 is provided on the outside of the transmission box 3. The feeding motor 4 and the rotating shaft 1 41 are connected for transmission. The rotating shaft 1 41 and the rotating shaft 2 43 are respectively passed through the axial holes 51 to the transmission box 3. The rotating shaft 1 41 is provided with a pulley 1 31, and the rotating shaft 2 43 is provided with a pulley 2 33. The pulley 1 31 and the pulley 2 33 are connected for transmission through a belt 1 32, and the belt 1 32, the pulley 1 31 and the pulley 2 33 are all arranged in the transmission box 3. In this way, a feeding motor 4 can be used to control the two spiral feeding mechanisms in the feeding pipe 5 to rotate and feed the materials, thereby achieving screening and crushing in the feeding process.

[0036] Furthermore, the end of the transmission case 3 is detachably provided with a cover 71, and a discharge pipe 7 is disposed at the bottom end of the cover 71; the discharge pipe 7 is positioned directly opposite the second rotating shaft 43. As the second spiral blade 44 rotates to feed the material, the material is discharged through the discharge pipe 7. The crushed material in the crushing box 81 falls to the bottom of the feed pipe 5, where it is agitated by the second spiral blade 44 and mixed with the biomass particles screened by the filter plate 8 before being discharged through the discharge pipe 7.

[0037] Furthermore, a positioning hole 72 is provided on the cover body 71 , and one end of the rotating shaft 1 41 is passed through the positioning hole 72 , thereby increasing the positioning accuracy of the rotating shaft 1 41 .

[0038] like Figures 4-6 As shown in Figures 10 to 12, in the present invention, the crushing roller assembly includes a crushing roller 9 and a connecting shaft 91. Two crushing rollers 9 and two connecting shafts 91 are provided, respectively. The two connecting shafts 91 are rotatably disposed within a crushing box 81. The crushing rollers 9 are provided on the outer wall of the connecting shaft 91. The two crushing rollers 9 are symmetrically disposed. Specifically, two connecting holes 82 are provided through the crushing box 81, and the two connecting shafts 91 are rotatably disposed in the connecting holes 82.

[0039] like Figure 9 、 12 As shown, further, a pulley 3 95 is provided on the rotating shaft 1 41, and a gear 92 is provided at one end of the connecting shaft 91. The two gears 92 on the two connecting shafts 91 are meshed and connected to each other. A pulley 4 93 is provided on one of the connecting shafts 91. The pulley 4 93 and the pulley 3 95 are connected by a belt 2 94. This design utilizes the feeding motor 4 to feed the material while indirectly driving the rotation of the rotating shaft 1 41 to rotate the pulverizing roller assembly, thereby achieving biomass particle pulverization, further simplifying the structure of the feeding device.

[0040] like Figures 4-6 , 9, and 12, further, two mounting holes 73 are provided on the cover body 71, and the mounting holes 73 correspond to the connecting holes 82 one by one. One end of the connecting shaft 91 is passed through the mounting hole 73, and the connecting shaft 91 passes through the mounting hole 73 to the outside of the cover body 71, and the gear 92, the pulley three 95, the pulley four 93, and the belt two 94 are arranged on the outside of the cover body 71.

[0041] like Figures 4-6 As shown in Figures 1 and 11, in the present invention, the filter plate 8 is set to a semicircular shape, and arc-shaped grooves 52 are respectively provided on both sides of the inner wall of the feeding tube 5. The inner diameter of the groove 52 is equivalent to the outer diameter of the filter plate 8. The upper side of the groove 52 has a horizontal limiting surface 53, and the bottom end of the groove 52 has a limiting protrusion 54 protruding toward the inner wall of the feeding tube 5. The filter plate 8 is clamped in the groove 52 to achieve precise and stable limiting.

[0042] like Figure 1As shown, the end of the discharge pipe 7 is connected to the feed port of the combustion device 2 for feeding the biomass particles into the combustion device 2 for combustion.

[0043] like Figure 1 As shown, the feed pipe 5 and the combustion device 2 are arranged on the casing 1.

[0044] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A feed device for a tobacco leaf baking burner, characterized in that : It includes a feeding pipe and a spiral feeding device. A filter plate is provided inside the feeding pipe to separate the inner cavity of the feeding pipe into two upper and lower cavities. A spiral feeding device is provided at the upper and lower ends of the filter plate respectively, and the spiral feeding device is provided inside the feeding pipe; a crushing box is provided at the bottom end of the filter plate, a crushing roller assembly is provided in the crushing box, and a discharge pipe is provided at the end of the feeding pipe.

2. The feed device for a tobacco leaf baking burner according to claim 1, characterized in that: The spiral feeding device includes a rotating shaft 1, a rotating shaft 2, a spiral blade 1 and a spiral blade 2. The rotating shaft 1 is provided with a spiral blade 1, and the rotating shaft 2 is provided with a spiral blade 2. A transmission box is provided at one end of the feeding tube, and a feeding motor is provided on the outside of the transmission box. The feeding motor is connected to the rotating shaft 1 for transmission. The rotating shaft 1 is provided with a pulley 1, and the rotating shaft 2 is provided with a pulley 2. The pulley 1 and the pulley 2 are connected for transmission through a belt 1. The belt 1, pulley 1 and pulley 2 are all provided in the transmission box.

3. The feed device for a tobacco leaf baking burner according to claim 2, characterized in that: The end of the transmission box is detachably provided with a cover body, and the discharge pipe is provided at the bottom end of the cover body; the discharge pipe is provided opposite to the second rotating shaft.

4. The feed device for a tobacco leaf baking burner according to claim 3, characterized in that: The cover body is provided with a positioning hole, and the rotating shaft is passed through the positioning hole.

5. The feed device for a tobacco leaf baking burner according to claim 4, characterized in that: The crushing roller assembly includes a crushing roller and a connecting shaft. The two connecting shafts are rotatably arranged in the crushing box. The outer walls of the connecting shafts are provided with crushing rollers, and the two crushing rollers are symmetrically arranged.

6. The feed device for a tobacco leaf baking burner according to claim 5, characterized in that: A pulley three is provided on the rotating shaft one, a gear is provided at one end of the connecting shaft, the two gears on the two connecting shafts are meshed and connected with each other, a pulley four is provided on one of the connecting shafts, and the pulley four and the pulley three are connected for transmission through a belt two.

7. The feed device for a tobacco leaf baking burner according to claim 6, characterized in that: The cover body is provided with a mounting hole, the connecting shaft is passed through the mounting hole to the outside of the cover body, and the gear, the third pulley, the fourth pulley, and the second belt are arranged on the outside of the cover body.

8. The feed device for a tobacco leaf baking burner according to claim 1, characterized in that: The end of the discharge pipe is connected to the feed port of the combustion device.

9. The feed device for a tobacco leaf baking burner according to claim 8, characterized in that: The feeding pipe and the combustion device are arranged on the chassis.

10. The feed device for a tobacco leaf baking burner according to claim 8, characterized in that: The filter plate is arranged in a semicircular shape, and arc-shaped slots are respectively arranged on both sides of the inner wall of the feeding tube, and the filter plate is arranged in the slots.

Images