Cut stem roller heating device

Abstract

The utility model discloses a cut stem roller heating device which comprises a heating pad which is an arc-shaped pad surrounding the lower portion of a roller, and a heating cavity is formed in the heating pad. The steam control pipeline can be communicated with the heating cavity inlet of the heating pad; the condensate water recovery control pipeline can be communicated with the heating cavity outlet of the heating pad; the two ends of the condensate water circulation cooling pipeline can be communicated with an inlet and an outlet of the heating cavity of the heating pad respectively; and a first temperature sensor and a mechanical thermometer are arranged in a cavity formed by the heating pad and the roller. The utility model relates to a cut stem roller heating device, which belongs to the technical field of cigarette production equipment, controls the temperature of a heating pad through the cooling function of a condensate water circulation cooling pipeline and the heating function of a steam control pipeline, and realizes the accurate adjustment of the heating temperature of a roller and cut stems in the roller.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production equipment, and more particularly to a cut stem roller heating device. Background Art

[0002] During the shredded stem feeding process, the outlet temperature is a key production indicator, significantly impacting the inherent quality of the stems. Inputs that influence the temperature of the stems include process steam, carrier steam and process water from the dual-media nozzle, and the dehumidification opening. The dehumidification opening is generally set to a set value based on process requirements, while the process water and process steam from the dual-media nozzle are adjusted based on the inlet stem flow rate and moisture content. Direct contact with the steam heat increases the temperature of the stems and ensures that the outlet stems meet the process's setpoints. However, when the inlet stem flow rate and moisture content fluctuate, the existing system cannot promptly adjust to these temperature changes at the outlet or perform micro-adjustments to accommodate these fluctuations. Utility Model Content

[0003] In view of the above shortcomings, the purpose of the present invention is to provide a cut stem drum heating device.

[0004] To achieve the above-mentioned purpose, the utility model provides a shredded stem drum heating device, comprising a heating pad, a steam control pipeline, a condensed water recovery control pipeline and a condensed water circulation cooling pipeline, the heating pad is an arc-shaped pad surrounded by the lower part of the drum, and a heating chamber is provided in the heating pad; the steam control pipeline can be connected to the heating chamber inlet of the heating pad; the condensed water recovery control pipeline can be connected to the heating chamber outlet of the heating pad; the two ends of the condensed water circulation cooling pipeline can be connected to the heating chamber inlet and outlet of the heating pad respectively; a first temperature sensor and a mechanical temperature gauge are provided in the cavity formed by the heating pad and the drum.

[0005] Preferably, it also includes an air pressure cleaning and blowing control pipeline, which is connected to the air compressor through an air pipe, the air outlet end of the air pipe is connected to the heating chamber of the heating pad, and a first regulating valve is provided on the air pipe.

[0006] Preferably, the roller is arranged at an angle, the heating pad is arranged at an angle, the inlet of the heating chamber is arranged at the top of the heating pad, the outlet of the heating chamber is arranged at the bottom of the heating pad, and the air pipe is connected to the top of the heating chamber.

[0007] Preferably, the steam control pipeline is connected to the gas outlet of the steam generating device, and a second regulating valve is provided on the steam control pipeline.

[0008] Preferably, the condensate recovery control pipeline is connected to the condensate recovery device, a first angle valve is provided on the condensate recovery control pipeline, and the condensate recovery device is connected to the water inlet of the steam generating device through a pipeline.

[0009] Preferably, the condensate circulation cooling pipeline includes a water collecting tank, a water inlet pipe and a water outlet pipe, one end of the water inlet pipe is connected to the outlet of the heating chamber of the heating pad, and the other end is connected to the water collecting tank, and a second angle valve is provided on the water inlet pipe, one end of the water outlet pipe is connected to the inlet of the heating chamber of the heating pad, and the other end is connected to the bottom of the water collecting tank, and a water pump and a third angle valve are provided on the water outlet pipe.

[0010] Preferably, the bottom of the water collecting tank is connected to a drain pipe, and a stop valve is provided on the drain pipe; the top of the water collecting tank is connected to an overflow pipe, and an overflow valve is provided at the inlet of the overflow pipe; a second temperature sensor is provided on the inner wall of the water collecting tank, a liquid level display is provided on the water collecting tank, and an exhaust valve is connected to the top of the water collecting tank.

[0011] Preferably, the heating chamber outlet of the heating pad is provided with an air outlet pipe, the end of the air outlet pipe is connected to a transition tank, the inlet of the water inlet pipe is connected to one end of the transition tank, and the inlet of the condensate recovery control pipeline is connected to the other end of the transition tank; a drain valve is provided on the air outlet pipe between the transition tank and the heating chamber outlet of the heating pad, a liquid level sensor is provided on the transition tank, a first filter is provided on the water outlet pipe, and a second filter is provided on the air outlet pipe.

[0012] Preferably, the heating chamber inlet of the heating pad is provided with an air inlet pipe, the air inlet pipe is provided with a fifth angle valve, the air inlet pipe is provided with a three-way joint connected to the end of the water outlet pipe and the steam control pipeline, and the water outlet pipe is provided with a third angle valve.

[0013] Preferably, the water outlet pipe is provided with a cleaning pipeline connected to the inner cavity of the drum, the cleaning pipeline is provided with a sixth angle valve, and the connection point between the cleaning pipeline and the water outlet pipe is located between the water pump and the third angle valve.

[0014] Compared with the existing technology, the utility model has the following beneficial effects:

[0015] (1) In the shredded stem drum heating device of the present invention, the temperature of the heating pad is controlled by the cooling function of the condensed water circulation cooling pipeline and the heating function of the steam control pipeline, thereby achieving precise adjustment of the heating temperature of the drum and the shredded stems in the drum, and achieving micro-adjustment of the heating temperature, which can accurately control the outlet temperature of the shredded stems;

[0016] (2) In the utility model of the stem cut roller heating device, the condensate recovery pipeline and the condensate circulation pipeline are connected through a transition tank. The transition tank is provided with a liquid level sensor. When the water volume exceeds the set height, the angle valve of the condensate circulation pipeline is opened to ensure that the condensate is discharged in time and the heating efficiency of the heating pad is ensured;

[0017] (3) In the stem cut drum heating device of the present invention, one end of the condensed water circulation pipeline is connected to the heating pad, and the temperature of the condensed water can be used for heating and adjustment. One end of the cooling water pipeline is connected to the cleaning water pipeline. After the production is completed, the residual heat of the condensed water can be used to clean the tank body, which maximizes the use of the residual heat of the condensed water and saves resources.

[0018] (4) In the stem cut roller heating device of the present invention, the air pressure blowing pipeline can blow out the steam and condensed water remaining inside the heating pad to eliminate latent heat, and can also prevent the formation of water hammer and avoid impact on the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 This is a structural front view of the cut stem drum heating device of the present invention;

[0021] Figure 2 It is a structural side view of the cut stem drum heating device of the present invention.

[0022] Explanation of main reference numerals: 1. drum; 2. first regulating valve; 3. heating pad; 4. drain valve; 5. liquid level sensor; 6. transition tank; 7. first angle valve; 8. condensate recovery device; 9. second angle valve; 11. exhaust valve; 12. overflow valve; 13. stop valve; 14. water collecting tank; 15. second temperature sensor; 16. liquid level display; 17. first filter; 18. water pump; 19. third angle valve; 20. sixth angle valve; 21. cleaning pipeline; 22. second regulating valve; 23. fifth angle valve; 24. drain pipe; 25. mechanical thermometer; 26. first temperature sensor; 27. second filter; 28. steam control pipeline; 29. ​​condensate circulation cooling pipeline; 30. air pressure cleaning control pipeline; 31. condensate recovery control pipeline; 32. overflow pipe; 33. air outlet pipe; 34. air inlet pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. The following is an explanation of the embodiments of the present invention based on its overall structure.

[0024] The specific implementation of the utility model is as follows:

[0025] like Figure 1-Figure 2 As shown, a shredded stem drum heating device includes: a heating pad 3, which is an arc-shaped pad surrounded by the lower part of the drum 1, and a heating chamber is provided in the heating pad 3; a steam control pipeline 28, which can be communicated with the heating chamber inlet of the heating pad 3; a condensed water recovery control pipeline 31, which can be communicated with the heating chamber outlet of the heating pad 3; a condensed water circulation cooling pipeline 29, and the two ends of the condensed water circulation cooling pipeline 29 can be respectively communicated with the heating chamber inlet and outlet of the heating pad 3; a first temperature sensor 26 and a mechanical temperature gauge 25 are provided in the cavity formed by the heating pad 3 and the drum 1.

[0026] The shredded stem drum heating device of the present invention is provided with a heating pad 3 surrounding the bottom of the drum 1. The heating chamber in the heating pad 3 can heat the drum 1 after steam is injected into the heating cavity through the steam control pipe 28, thereby heating the shredded stems in the drum 1. The shredded stems in the rotating drum 1 are heated evenly and the heating effect is good. Moreover, the isolated heating by steam can ensure the humidity of the shredded stems, and the temperature of the heating pad 3 is controlled by the cooling function of the condensed water circulation cooling pipe 29 and the heating function of the steam control pipe 28, so that the heating temperature of the drum 1 and the shredded stems in the drum 1 can be accurately adjusted, the heating temperature can be slightly adjusted, and the outlet temperature of the shredded stems can be accurately controlled.

[0027] In this embodiment, an air pressure cleaning control pipeline 30 is also included. The air pressure cleaning control pipeline 30 is connected to the air compressor through an air pipe. The air outlet end of the air pipe is connected to the heating chamber of the heating pad 3. The air pipe is provided with a first regulating valve 2, and the flow rate and air pressure of the air flow can be adjusted by the first regulating valve 2; the air pipe is connected to the top of one side of the heating pad 3, and the air pipe of the air pressure cleaning control pipeline 30 is connected to the air compressor, which can blow away the steam and condensed water remaining in the heating pad 3 to eliminate latent heat, and can also prevent the formation of water hammer and avoid impact on the pipeline.

[0028] The electromagnetic valves, water pumps, sensors and other components on the steam control pipeline 28, the condensate recovery control pipeline 31, the condensate circulation cooling pipeline 29 and the air pressure cleaning control pipeline 30 are electrically connected to the controller in the control cabinet. The working status of the steam control pipeline 28, the condensate recovery control pipeline 31, the condensate circulation cooling pipeline 29 and the air pressure cleaning control pipeline 30 can be controlled through the control cabinet.

[0029] A preferred implementation of this embodiment is that the drum 1 is arranged at an angle, the heating pad 3 is arranged at an angle, the inlet of the heating chamber is located at the top of the heating pad 3, the outlet of the heating chamber is located at the bottom of the heating pad 3, and the air pipe is connected to the top of the heating chamber. In this embodiment, the heating pad 3 is arranged at an angle, and the steam from the steam control line 28 can enter the heating chamber from the higher end of the heating pad 3 and then flow out of the heating chamber from the lower end. The steam flows downward and the flow rate becomes slower, thereby fully utilizing the thermal energy of the steam to fully heat the heating pad 3.

[0030] In a preferred embodiment of this embodiment, the steam control line 28 is connected to the steam outlet of the steam generator and is provided with a second regulating valve 22. In this embodiment, the steam control line 28 is connected to the steam generator, and the steam flow rate is adjusted by the second regulating valve 22 to adjust the temperature of the heating pad 3, thereby adjusting the temperature of the drum 1.

[0031] In a preferred embodiment of this embodiment, the condensed water recovery control line 31 is connected to the condensed water recovery device 8. A first angle valve 7 is provided on the condensed water recovery control line 31. The condensed water recovery device 8 is connected to the water inlet of the steam generator via a pipeline. In this embodiment, when the first angle valve 7 is opened, the condensed water recovery control line 31 transfers the condensed water flowing out of the heating chamber outlet of the heating pad 3 to the condensed water recovery device 8. The condensed water is then re-transferred to the steam generator for heating via the condensed water recovery device 8, thereby recycling the condensed water. The preheating of the condensed water reduces energy consumption of the steam generator, thereby saving costs.

[0032] A preferred implementation of this embodiment is that the condensed water circulation cooling pipeline 29 includes a water collecting tank 14, a water inlet pipe and a water outlet pipe, one end of the water inlet pipe can be connected to the heating chamber outlet of the heating pad 3, and the other end can be connected to the water collecting tank 14, and a second angle valve 9 is provided on the water inlet pipe, one end of the water outlet pipe is connected to the heating chamber inlet of the heating pad 3, and the other end is connected to the bottom of the water collecting tank 14, and a water pump 18 and a third angle valve 19 are provided on the water outlet pipe. In this embodiment, the second angle valve 9 is opened, and the condensed water flowing out of the outlet of the heating chamber of the heating pad 3 can enter the water collecting tank 14 for temporary storage. When the temperature of the heating pad 3 needs to be lowered, the second regulating valve 22 is closed to stop the steam input into the heating pad 3. The third angle valve 19 can be opened and the water pump 18 is started to pump the condensed water in the water collecting tank 14 into the heating pad 3, so that the heating pad 3 is slowly cooled down and the condensed water is fully utilized for cooling. In addition, the condensed water has a certain amount of heat and the temperature is above 60°, which will not cause the heating pad 3 to cool down rapidly.

[0033] A preferred implementation of this embodiment is that the bottom of the water collecting tank 14 is connected to a drain pipe 24, the drain pipe 24 is provided with a stop valve 13, and the drain pipe 24 is connected to the sewer in the factory; the top of the water collecting tank 14 is connected to an overflow pipe 32, the inlet of the overflow pipe 32 is provided with an overflow valve 12, and the outlet of the overflow pipe 32 is connected to the drain pipe 24; the inner wall of the water collecting tank 14 is provided with a second temperature sensor 15, the water collecting tank 14 is provided with a liquid level display 16, and the top of the water collecting tank 14 is connected to an exhaust valve 11. In this embodiment, after the water level in the water collecting tank 14 reaches a certain height, it can be discharged from the overflow valve 12 and the overflow pipe 32; the exhaust valve 11 can discharge the gas in the water collecting tank 14; when the water collecting tank 14 needs to be cleaned or repaired, the stop valve 13 can be opened to discharge the water in the tank into the sewer; the second temperature sensor 15 monitors the condensed water temperature in the water collecting tank 14. If the temperature is too low, the cold water can be discharged from the drain pipe 24 by opening the stop valve 13.

[0034] In a preferred embodiment of this embodiment, the heating chamber outlet of the heating pad 3 is provided with an air outlet pipe 33, the end of which is connected to a transition tank 6, the inlet of the water inlet pipe is connected to one end of the transition tank 6, and the inlet of the condensate recovery control line 31 is connected to the other end of the transition tank 6. A drain valve 4 is provided on the air outlet pipe 33 between the transition tank 6 and the heating chamber outlet of the heating pad 3, the transition tank 6 is provided with a liquid level sensor 5, the water outlet pipe is provided with a first filter 17, and the air outlet pipe 33 is provided with a second filter 27. In this embodiment, the drain valve 4 allows water vapor flowing out of the heating chamber outlet of the heating pad 3 to be liquefied into condensate within the transition tank 6, and then flow into the transition tank 6 for temporary storage, facilitating the distribution of the condensate to the condensate circulation and cooling line 29 or the condensate recovery control line 31 according to actual conditions, and also preventing water vapor from flowing into the condensate circulation and cooling line 29 and the condensate recovery control line 31, causing condensate flow obstruction.

[0035] A preferred implementation of this embodiment is that an air intake pipe 34 is provided at the inlet of the heating chamber of the heating pad 3, a fifth angle valve 23 is provided on the air intake pipe 34, and a three-way joint connected to the end of the water outlet pipe and the steam control line 28 is provided on the air intake pipe 34; when the heating chamber of the heating pad 3 is cleaned by the air pressure cleaning control line 30, the fifth angle valve 23 can be closed to prevent gas from flowing out of the air intake pipe 34 into the steam control line 28 and the condensed water circulation cooling line 29 and affecting the flow of steam and condensed water.

[0036] In a preferred embodiment of this embodiment, the water outlet pipe is provided with a cleaning line 21 connected to the inner cavity of the drum 1, and a sixth angle valve 20 is provided on the cleaning line 21. The connection point between the cleaning line 21 and the water outlet pipe is located downstream of the water pump 18 and upstream of the third angle valve 19. In this embodiment, the cleaning line 21 is connected to the drum 1, and by closing the third angle valve 19, opening the sixth angle valve 20, and starting the water pump 18, the windshield condensed water in the water collection tank 14 can be pumped out to clean the drum 1. This fully utilizes the water source on the equipment, eliminates the need for an additional external water source to clean the drum 1, reduces the purchase and layout of cleaning lines, and reduces costs.

[0037] Working principle:

[0038] First, clean the inner cavity of the heating pad 3 under the drum 1. When the heating cavity of the heating pad 3 is cleaned through the air pressure cleaning control pipe 30, close the fifth angle valve 23 to prevent gas from flowing out of the air inlet pipe 34 into the steam control pipe 28 and the condensate circulation cooling pipe 29, thereby affecting the flow of steam and condensate.

[0039] Next, steam passing through the steam control pipe 28 enters the heating chamber from the higher end of the heating pad 3 and then flows out of the heating chamber from the lower end. The steam flows downward at a slower speed, making full use of the heat energy of the steam to fully heat the heating pad 3. The heating pad 3 heats the drum 1 above, thereby uniformly heating the shredded stems in the drum 1.

[0040] Next, the air outlet pipe 33 at the bottom end of the heating pad 3 can discharge the steam-water mixture in the heating chamber to the transition tank 6 for temporary storage, so that the condensed water can be distributed to the condensed water recovery control pipeline 31 according to actual conditions. The condensed water recovery control pipeline 31 re-transports the condensed water to the steam generator for heating to obtain high-temperature steam; or the condensed water can be distributed to the condensed water circulation cooling pipeline 29. The condensed water circulation cooling pipeline 29 can transport the condensed water to the heating chamber to cool the heating chamber and adjust the temperature of the heating pad 3, thereby adjusting the heating temperature of the cut stems in the drum 1;

[0041] The condensed water circulation cooling pipeline 29 can also transport the condensed water to the cleaning pipeline 21. The cleaning pipeline 21 is connected to the drum 1. Close the third angle valve 19 and open the sixth angle valve 20. Start the water pump 18 to extract the windshield condensed water in the water collection tank 14 to clean the drum 1, making full use of the water source on the equipment. There is no need to use an additional external water source to clean the drum 1, reducing the purchase and layout of the cleaning pipeline and reducing costs.

[0042] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of illustration and description. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are only explanations of the present invention and are not limitations on the present invention. The specific features, structures, materials or characteristics described can be combined in an appropriate manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various different choices and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A cut stem drum heating device, characterized in that: The invention comprises a heating pad (3), a steam control pipeline (28), a condensed water recovery control pipeline (31) and a condensed water circulation cooling pipeline (29), wherein the heating pad (3) is an arc-shaped pad surrounding the lower part of the drum (1), and a heating chamber is provided in the heating pad (3); the steam control pipeline (28) can be communicated with the heating chamber inlet of the heating pad (3); the condensed water recovery control pipeline (31) can be communicated with the heating chamber outlet of the heating pad (3); the two ends of the condensed water circulation cooling pipeline (29) can be respectively communicated with the heating chamber inlet and outlet of the heating pad (3); a first temperature sensor (26) and a mechanical temperature gauge (25) are provided in the cavity formed by the heating pad (3) and the drum (1).

2. The cut stem drum heating device according to claim 1, characterized in that: It also includes an air pressure purge control pipeline (30), which is connected to the air compressor through an air pipe, the air outlet end of the air pipe is connected to the heating chamber of the heating pad (3), and a first regulating valve (2) is provided on the air pipe.

3. The cut stem drum heating device according to claim 2, characterized in that: The roller (1) is arranged at an angle, the heating pad (3) is arranged at an angle, the inlet of the heating chamber is arranged at the top of the heating pad (3), the outlet of the heating chamber is arranged at the bottom of the heating pad (3), and the air pipe is connected to the top of the heating chamber.

4. The cut stem drum heating device according to claim 1, 2 or 3, characterized in that: The steam control pipeline (28) is connected to the gas outlet of the steam generating device, and a second regulating valve (22) is provided on the steam control pipeline (28).

5. The cut stem drum heating device according to claim 4, characterized in that: The condensate recovery control pipeline (31) is connected to the condensate recovery device (8), a first angle valve (7) is provided on the condensate recovery control pipeline (31), and the condensate recovery device (8) is connected to the water inlet of the steam generating device through a pipeline.

6. The cut stem drum heating device according to claim 5, characterized in that: The condensed water circulation cooling pipeline (29) includes a water collecting tank (14), a water inlet pipe and a water outlet pipe, one end of the water inlet pipe is connected to the outlet of the heating chamber of the heating pad (3), and the other end is connected to the water collecting tank (14), and a second angle valve (9) is provided on the water inlet pipe, one end of the water outlet pipe is connected to the inlet of the heating chamber of the heating pad (3), and the other end is connected to the bottom of the water collecting tank (14), and a water pump (18) and a third angle valve (19) are provided on the water outlet pipe.

7. The cut stem drum heating device according to claim 6, characterized in that: The bottom of the water collecting tank (14) is connected to a drain pipe (24), and a stop valve (13) is provided on the drain pipe (24); the top of the water collecting tank (14) is connected to an overflow pipe (32), and an overflow valve (12) is provided at the inlet of the overflow pipe (32); a second temperature sensor (15) is provided on the inner wall of the water collecting tank (14), a liquid level display (16) is provided on the water collecting tank (14), and the top of the water collecting tank (14) is connected to an exhaust valve (11).

8. The cut stem drum heating device according to claim 6, characterized in that: The outlet of the heating chamber of the heating pad (3) is provided with an air outlet pipe (33), the end of the air outlet pipe (33) is connected to a transition tank (6), the inlet of the water inlet pipe is connected to one end of the transition tank (6), and the inlet of the condensate recovery control pipeline (31) is connected to the other end of the transition tank (6); a drain valve (4) is provided on the air outlet pipe (33) between the transition tank (6) and the outlet of the heating chamber of the heating pad (3), a liquid level sensor (5) is provided on the transition tank (6), a first filter (17) is provided on the water outlet pipe, and a second filter (27) is provided on the air outlet pipe (33).

9. The cut stem drum heating device according to claim 8, characterized in that: The heating chamber inlet of the heating pad (3) is provided with an air intake pipe (34), the air intake pipe (34) is provided with a fifth angle valve (23), the air intake pipe (34) is provided with a three-way joint connected to the end of the water outlet pipe and the steam control pipeline (28), and the water outlet pipe is provided with a third angle valve (19).

10. The cut stem drum heating device according to claim 9, characterized in that: The water outlet pipe is provided with a cleaning pipeline (21) connected to the inner cavity of the drum (1), the cleaning pipeline (21) is provided with a sixth angle valve (20), and the connection point between the cleaning pipeline (21) and the water outlet pipe is located between the water pump (18) and the third angle valve (19).

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