Continuous feeding and circulating humidifying unit for tobacco fermentation line

Abstract

The utility model provides a continuous feeding and circulating humidifying unit for a tobacco fermentation line. The continuous feeding and circulating humidifying unit comprises a conveying belt, a shielding cover, a humidifying air inlet pipeline, a humidifying circulating pipeline, a circulating fan, an air heater and an air humidifier, the shielding cover is arranged above the conveying belt and is matched with the surface of a local section of the conveying belt to define a semi-closed humidifying space; the inlet end of the humidification air inlet pipeline is connected with an air heater, an air humidifier and a circulating fan, and the tail end of the humidification air inlet pipeline communicates with an inlet of the humidification space. The inlet end of the humidifying circulating pipeline is communicated with an outlet of the humidifying space, and the tail end of the humidifying circulating pipeline is communicated with the inlet end of the humidifying air inlet pipeline through an air return valve to form a loop. The continuous feeding circulating humidifying unit for the tobacco fermentation line has the advantages that circulating humidifying is achieved, the fermentation line is not affected, the humidifying effect is excellent, and operation is good.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco fermentation lines, in particular to a continuous feeding circulation humidifying unit for a tobacco fermentation line. Background Art

[0002] In the tobacco fermentation production line, before spraying the fermentation bacteria liquid and enzyme liquid on the tobacco, it is necessary to adjust the moisture content of the raw tobacco, tobacco stems, tobacco leaves and other products according to their properties.

[0003] At present, the common humidification process means in the laboratory mostly adopts container humidification, that is, the tobacco shreds, tobacco stems and tobacco leaves to be humidified are stored in a set container, and humidification treatment is performed by increasing the air humidity. For example, the utility model patent with application number: CN202220914738.9, the invention name: A tobacco fermentation machine, discloses a scheme of humidification using a combination of a box, a drying rack and a humidifier; others, such as the application number CN202321208987.7, the invention name: A humidifier for cigar tobacco production and fermentation, and the utility model patent with application number CN202223473246.X, the invention name: A full-chain automated cigar tobacco fermentation room, both disclose the means of humidification treatment using containers.

[0004] However, when constructing a tobacco fermentation line, the tobacco needs to be in a dynamic process that can be continuously transported, manual transfer of materials should be avoided as much as possible, space should be saved as much as possible, and the original equipment of the fermentation line should be used efficiently.

[0005] In the current production line, although there are large equipment functions such as rehumidification units that can achieve the same purpose, the laboratory-based small and pilot production lines have strict requirements on the equipment size, making these solutions impossible to implement.

[0006] In order to be compatible with the constraints of the laboratory environment and the performance of the equipment, new solutions are needed.

[0007] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0008] The utility model aims to address the deficiencies of the prior art, thereby providing a tobacco fermentation line continuous feeding circulating humidification unit which has the advantages of circulating humidification, does not affect the operation of the fermentation line and has excellent humidification effect.

[0009] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a continuous feeding circulation humidification unit for a tobacco fermentation line, comprising a conveyor belt, a shielding cover, a humidification air intake pipe, a humidification circulation pipe, a circulation fan, an air heater and an air humidifier;

[0010] The shielding cover is arranged above the conveyor belt and cooperates with the surface of a local section of the conveyor belt to enclose a semi-enclosed humidification space;

[0011] The inlet end of the humidification air inlet pipe is respectively connected to an air heater, an air humidifier and a circulating fan to heat and humidify the incoming air, and the end of the humidification air inlet pipe is connected to the inlet of the humidification space;

[0012] The inlet end of the humidification circulation pipeline is connected to the outlet of the humidification space, and the end of the humidification circulation pipeline is connected to the inlet end of the humidification air inlet pipeline through the return valve to form a loop.

[0013] Based on the above, the circulating fan and the air heater are installed in series on the humidification air inlet pipe.

[0014] Based on the above, the air humidifier is arranged at the end of the humidification circulation pipeline.

[0015] Based on the above, the air source inlet of the air humidifier is connected to the steam pipeline through a valve.

[0016] Based on the above, the loop formed by the humidification air inlet pipe and the humidification circulation pipe is partially connected with the outside in the humidification space, forming a semi-closed loop structure.

[0017] Based on the above, the conveyor belt is an inclined feeding conveyor, and the shielding cover is arranged at the lower area of ​​the conveyor belt.

[0018] Based on the above, the height of the air inlet end of the humidification space is lower than the height of the air outlet end.

[0019] Based on the above, a temperature and humidity sensor is arranged in the humidification space, and the air heater, the circulation fan, the air humidifier and each valve are controlled by a controller according to the sensing data of the temperature and humidity sensor.

[0020] Based on the above, the controller is also associated with the driving motor of the conveyor belt, and controls the running speed of the driving motor according to the sensing data of the temperature and humidity sensor and the running time parameters of the continuous feeding circulation humidification unit of the tobacco fermentation line.

[0021] The utility model has substantial characteristics and progress compared with the prior art. Specifically, the utility model has the following advantages:

[0022] 1. Construct a tobacco humidification circulation system based on a conveyor belt. Set a shield above the conveyor belt to form a semi-enclosed space as a humidification space. Then, heat and humidify the air through the pipeline design and inject it into the humidification space. After a certain period of circulation, the tobacco humidification purpose is achieved.

[0023] 2. A circulating fan, an air heater and an air humidifier are installed in the humidification air intake duct and the humidification circulation duct to control the temperature and humidity of the circulating air to ensure the humidification effect of the tobacco.

[0024] 3. In order to improve the humidification efficiency, the conveyor belt is designed as an inclined lifting conveyor belt. The humidified airflow flows from the bottom to the top, which can cover as much tobacco as possible and is also in line with the travel path of the high-temperature gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is one of the structural schematic diagrams of the continuous feeding circulation humidifying unit of the tobacco fermentation line in the utility model.

[0026] Figure 2 This is the second structural schematic diagram of the continuous feeding circulation humidifying unit of the tobacco fermentation line in the utility model.

[0027] In the figure: 1. Conveyor belt; 2. Shielding hood; 3. Humidification air inlet duct; 4. Humidification circulation duct; 5. Air humidifier; 6. Circulation fan; 7. Air heater; 8. Return air valve; 9. Valve; 10. Steam pipe. DETAILED DESCRIPTION

[0028] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0029] like Figure 1 and Figure 2 As shown, a continuous feeding circulation humidification unit for a tobacco fermentation line includes a conveyor belt 1, a shielding cover 2, a humidification air intake pipe 3, a humidification circulation pipe 4, a circulation fan 6, an air heater 7 and an air humidifier 5.

[0030] The shielding cover 2 is arranged above the conveyor belt 1, and cooperates with the local section surface of the conveyor belt 1 to form a semi-enclosed humidification space; specifically, the shielding cover 2 can adopt an arched structure made of stainless steel, which is enclosed above the conveyor belt 1, leaving only channels for feeding and discharging in the traveling direction of the conveyor belt 1, without hindering the normal movement of tobacco materials.

[0031] In a preferred embodiment, the shielding cover 2 can be opened on one side, and the front and rear opening heights can also be designed to be adjustable to meet different production requirements.

[0032] In this embodiment, in order to improve the humidification effect, the conveyor belt 1 is an inclined lifting conveyor belt, that is, a slope feeding conveyor. The shielding cover 2 is arranged in the lower area of ​​the conveyor belt. The height of the air inlet end of the humidification space is lower than the height of the air outlet end. It is designed according to the characteristic that high-temperature airflow is easier to rise, which is more conducive to airflow circulation.

[0033] The inlet end of the humidification air inlet pipe 3 is respectively connected to an air heater 7, an air humidifier 5 and a circulation fan 6, wherein the circulation fan 6 and the air heater 7 are installed in series on the humidification air inlet pipe 3, and the air humidifier 5 is installed at the end of the humidification circulation pipe 4.

[0034] The air source inlet of the air humidifier 5 is connected to the steam pipeline 10 through the valve 9 .

[0035] The inlet end of the humidification circulation pipe 4 is connected to the outlet of the humidification space, and the end of the humidification circulation pipe 4 forms a loop with the humidification air inlet pipeline 3 through the return valve 8. The loop is connected to the outside through a semi-closed structure in the humidification space to form a semi-closed loop.

[0036] A temperature and humidity sensor is arranged in the humidification space, and the air heater, the circulation fan, the air humidifier and each valve are respectively controlled by a controller according to the sensing data of the temperature and humidity sensor.

[0037] In a preferred embodiment, the controller is also associated with a driving motor of the conveyor belt, and controls the operating speed of the driving motor according to sensing data of the temperature and humidity sensor and operating time parameters of the continuous feeding circulation humidification unit of the tobacco fermentation line.

[0038] Working principle description:

[0039] The air heater 7 provides high temperature for the circulating air, thereby increasing the temperature of the circulating airflow. The air humidifier 5 adds moisture to the air and increases the air humidity. The circulating fan 6 provides circulating power, so that the airflow with a certain temperature and humidity flows through the humidification space. As the circulation time increases, the humidity and temperature will become higher and higher.

[0040] Tobacco raw materials in the humidification space, such as tobacco leaves, tobacco shreds or tobacco stems, are temporarily retained on the conveyor belt. The temperature of the tobacco raw materials is increased to stretch their surfaces and expand their pores. The high-humidity airflow can humidify the tobacco raw materials, greatly increasing the moisture content of the tobacco raw materials.

[0041] As for when the moisture content of the tobacco raw materials reaches the set requirements, there are several methods. One is to set the parameters based on the data obtained from experience. The second is to add a moisture measuring instrument to the rear end of the conveyor belt to detect the moisture content of the tobacco raw materials. When the test fails, it is returned to the humidification space to continue the humidification process.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A continuous feeding circulation humidification unit for a tobacco fermentation line, characterized in that: It includes a conveyor belt, a shielding cover, a humidification air intake duct, a humidification circulation duct, a circulation fan, an air heater and an air humidifier; The shielding cover is arranged above the conveyor belt and cooperates with the surface of a local section of the conveyor belt to enclose a semi-enclosed humidification space; The inlet end of the humidification air inlet pipe is respectively connected to an air heater, an air humidifier and a circulating fan to heat and humidify the incoming air, and the end of the humidification air inlet pipe is connected to the inlet of the humidification space; The inlet end of the humidification circulation pipeline is connected to the outlet of the humidification space, and the end of the humidification circulation pipeline is connected to the inlet end of the humidification air inlet pipeline through the return valve to form a loop.

2. The continuous feeding circulation humidification unit for tobacco fermentation line according to claim 1, characterized in that: The circulating fan and the air heater are installed in series on the humidification air inlet pipeline.

3. The continuous feeding circulation humidification unit for tobacco fermentation line according to claim 1 or 2, characterized in that: The air humidifier is arranged at the end of the humidification circulation pipeline.

4. The continuous feeding circulation humidification unit for tobacco fermentation line according to claim 3 is characterized by: The air source inlet of the air humidifier is connected to the steam pipeline through a valve.

5. The continuous feeding circulation humidifying unit for tobacco fermentation line according to claim 1, 2 or 4, characterized in that: The loop formed by the humidification air inlet pipe and the humidification circulation pipe is partially connected with the outside in the humidification space, forming a semi-closed loop structure.

6. The continuous feeding circulation humidification unit for tobacco fermentation line according to claim 1, 2 or 4, characterized in that: The conveyor belt is a slope feeding conveyor, and the shielding cover is arranged at the lower area of ​​the conveyor belt.

7. The continuous feeding circulation humidification unit for tobacco fermentation line according to claim 6, characterized in that: The height of the air inlet end of the humidification space is lower than the height of the air outlet end.

8. The continuous feeding circulation humidification unit for tobacco fermentation line according to claim 7, characterized in that: A temperature and humidity sensor is arranged in the humidification space, and the air heater, the circulation fan, the air humidifier and each valve are respectively controlled by a controller according to the sensing data of the temperature and humidity sensor.

9. The continuous feeding circulation humidification unit for tobacco fermentation line according to claim 8, characterized in that: The controller is also associated with the driving motor of the conveyor belt, and controls the running speed of the driving motor according to the sensing data of the temperature and humidity sensor and the running time parameters of the continuous feeding circulation humidification unit of the tobacco fermentation line.

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