CN213369878U - Tobacco temperature-increasing and humidity-controlling device - Google Patents

Abstract

The utility model discloses a tobacco heats accuse wet device, including frame, rack-mounted fan and belt conveyor, be equipped with the cover body that forms the process chamber on the belt conveyor, be equipped with the circulation wind channel of intercommunication fan on the cover body, be equipped with the temperature-raising device on the circulation wind channel and control wet device, the circulation wind channel is including setting up air-supply line and the return air duct in belt conveyor top and below respectively, the conveyer belt of belt conveyor is the guipure. The utility model discloses a set up belt conveyor's conveyer belt into the guipure structure, make the tobacco material that hot-blast, steam that lets in the process chamber from the air-supply line can evenly pass through on the guipure to accomplish the circulation through the return air duct, realize the humidity to the tobacco material, the even adjustment of temperature, for the wet structure of drum-type temperature-raising accuse, the conveyer belt transport structure that is relative static with the tobacco material can show reduction production and make the bits of broken glass, guarantees the production quality of tobacco material moreover.

Description

Tobacco temperature-increasing and humidity-controlling device

Technical Field

The utility model relates to a tobacco processing field, concretely relates to tobacco in tobacco production process heats wet device of accuse.

Background

The tobacco temperature-increasing and humidity-controlling mode in the traditional technology is mainly realized by a roller device. Because the tobacco is static when being transported on the production line, the tobacco cannot be uniformly treated when being subjected to temperature rise and humidity control. The uniformity of the tobacco leaf in the temperature-increasing and humidity-controlling treatment process can be improved through the roller device. However, the roller structure can increase the tobacco leaf breakage due to overlarge dynamic amplitude, so that the quality of the tobacco leaf finished product is low.

The belt conveyor is a transportation device widely used in tobacco, chemical industry, grain, coal and other industries. It is suitable for conveying various granular and powdery bulk materials and also can be used for conveying finished articles. The conveying function is the basic function of the belt conveyor, and the belt conveyor is often added with functions including cooling, heating, spraying and dedusting and the like according to the requirements of some processes. Adopt the conveyer belt to carry out the device air-dried among the prior art, owing to only can air-dry the surface of conveyer belt top material, and the material that is in inside then can't effectively air-dry. In the prior art, a part of the conveying belt is made of felt materials to absorb water, and a water squeezing device is additionally arranged under the structure to solve the problem of felt water accumulation.

In the tobacco industry, in order to reduce the processing and make garrulous, often need control the moisture of tobacco material, improve the temperature of tobacco material, conventional hot-blast area can reduce material moisture when improving tobacco material temperature, consequently, need be when heating, guarantee the humidity of tobacco material.

Disclosure of Invention

In order to solve one or more technical problem among the prior art, or at least provide a profitable selection, the utility model provides a tobacco heats wet device of accuse, when reducing tobacco processing and making garrulous, guarantees to heat, the homogeneity that the accuse was wet.

The utility model discloses a tobacco heats accuse wet device, including frame, rack-mounted fan and belt conveyor, be equipped with the cover body that forms the process chamber on the belt conveyor, be equipped with the circulation wind channel of intercommunication fan on the cover body, be equipped with the temperature-raising device on the circulation wind channel and control wet device, the circulation wind channel is including setting up air-supply line and the return air duct in belt conveyor top and below respectively, the conveyer belt of belt conveyor is the guipure.

As a preferred technical scheme of the tobacco temperature-increasing and humidity-controlling device, an air inlet is arranged on a cover body of an air inlet pipe, an air return inlet is arranged on a cover body of an air return pipe, and the air inlet and the air return inlet are correspondingly arranged.

As a preferred technical scheme of the tobacco temperature-increasing and humidity-controlling device, a plurality of air inlets and air return inlets are uniformly arranged along the conveying direction of a belt conveyor.

As a preferred technical scheme of the tobacco temperature-increasing and humidity-controlling device, the cover body comprises an upper cover body arranged above the belt conveyor and a lower cover body arranged below the belt conveyor.

As a preferred technical scheme of the tobacco temperature-increasing and humidity-controlling device, the upper cover body is connected with the lower cover body in a sealing way.

As a preferred technical scheme of the tobacco temperature-increasing and humidity-controlling device, air deflectors for guiding the air to the middle of the conveying belt are arranged on the two sides of the upper cover body in the conveying direction of the conveying belt.

As a preferred technical scheme of the tobacco temperature-increasing and humidity-controlling device, a settling tank for collecting tobacco shreds is arranged on a pipeline of the air return pipe.

As an optimal technical scheme of the tobacco temperature-increasing and humidity-controlling device, a settling chamber is formed inside the settling tank, and the radial size of the settling chamber is 3-8 times of the pipe diameter of the return air pipe.

As a preferred technical scheme of the tobacco temperature-increasing and humidity-controlling device, the temperature-increasing device is arranged between the settling tank and the fan.

As a preferred technical scheme of the tobacco temperature-increasing and humidity-controlling device, the temperature-increasing device comprises a heat exchanger arranged on a return air pipe and a temperature sensor arranged on the return air pipe, and the temperature sensor is in communication connection with the heat exchanger;

and/or

The humidity control device comprises a humidifier arranged on an upper cover of the air inlet pipe and a humidity sensor arranged on the air return pipe, and the humidity sensor is in communication connection with the humidifier.

The beneficial effects of the utility model reside in that:

1. the utility model discloses a set up belt conveyor's conveyer belt into the guipure structure, make the tobacco material that hot-blast, steam that lets in the process chamber from the air-supply line can evenly pass through on the guipure to accomplish the circulation through the return air duct, realize the humidity to the tobacco material, the even adjustment of temperature, for the wet structure of drum-type temperature-raising accuse, the conveyer belt transport structure that is relative static with the tobacco material can show reduction production and make the bits of broken glass, guarantees the production quality of tobacco material moreover.

2. The air inlet of the air inlet pipe corresponds to the air return inlet of the air return pipe, air flow blown in from the upper part can directly penetrate through tobacco materials on the mesh belt and flows back from the air return inlet at the lower part, the air flow circulation is smooth, the temperature increasing and humidity controlling efficiency can be improved, and the processing time is shortened.

3. A plurality of air intakes and return air inlet cooperation set up, can improve air inlet efficiency and return air efficiency, and then improve the efficiency of heating and accuse humidity.

4. The cover body is of a split structure and is divided into an upper cover body and a lower cover body, the split structure is convenient to transport in the actual production process, assembly is convenient during assembly, and assembly efficiency is improved.

5. The upper cover body and the lower cover body form a sealing structure, so that heat loss of the temperature increasing device and moisture loss of the humidity control device can be avoided, on one hand, energy can be saved, cost can be reduced, and on the other hand, the accuracy of temperature and humidity detection in the temperature and humidity control process can be ensured.

6. The two sides of the conveying direction of the conveying belt are provided with the air deflectors, so that air flow with certain temperature and humidity introduced by the upper air inlet can be guided to the tobacco materials above the conveying belt, the air flow is prevented from being disordered in the processing cavity, and heat and moisture loss can be reduced. In addition, the normal work of the belt conveyor can be prevented from being influenced by the broken tobacco materials.

7. The setting tank is used for collecting tobacco scraps blown off from the conveying belt, prevents tobacco scraps from entering the circulating air duct, and can reduce tobacco material scraps by using the setting tank and improve the production quality.

8. The setting of setting at the heating device front end of settling tank can avoid the tobacco to make garrulous entering heating device inside, improves the production security.

9. The radial dimension of a settling chamber formed by the settling box is 3-8 times of the pipe diameter of the return air pipe, so that the settling effect can be ensured, the possibility that tobacco is broken and enters the circulating air duct is reduced, and the production quality is ensured.

10. The heat exchanger and the temperature sensor are used for temperature rise control, so that the precision of temperature control can be improved; similarly, the humidity control is performed by using the humidifier and the humidity sensor, so that the precision of the humidity control can be improved. In addition, the heat exchanger is arranged on the return air pipe, the return air temperature can be directly detected, the detection precision is high, the humidifier is arranged on the air inlet pipe and is introduced into the processing cavity together with the hot air flow, the problem of excessive evaporation of moisture of the tobacco materials when the tobacco materials are introduced into the hot air flow can be avoided, and the product quality is improved.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a front view of a tobacco temperature and humidity increasing device according to an embodiment of the present invention.

Fig. 2 is a right side view of a tobacco temperature and humidity increasing device in the embodiment shown in fig. 1.

Fig. 3 is a schematic view of the combination of the cover and the belt conveyor in the embodiment of fig. 1.

Reference numerals:

1-frame, 2-fan, 3-belt conveyor, 4-cover body, 5-temperature-raising device, 6-humidity control device, 7-air inlet pipe, 8-air return pipe, 9-settling tank, 31-conveying belt, 32-material inlet, 33-material outlet, 41-upper cover body, 42-lower cover body, 43-air deflector, 51-heat exchanger and 61-humidifier.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The specific scheme is as follows:

as shown in fig. 1-3, the utility model discloses a tobacco temperature-increasing and humidity-controlling device, which comprises a frame 1, a fan 2 and a belt conveyor 3, wherein the fan 2 and the belt conveyor are installed on the frame 1. In a specific embodiment, in order to save space, the belt conveyor 3 is arranged at the upper end of the frame 1, the fan 2 is arranged at the lower end of the belt conveyor 3, the belt conveyor 3 is provided with a feeding port 32 and a discharging port 33 at two ends respectively, and the feeding port 32 and the discharging port 33 are hermetically connected with the interfaces of the upstream and downstream devices respectively so as to reduce the loss of hot air. The conveyer belt 31 of belt conveyor 3 is driven by the motor that sets up in discharge gate 33 one end, is equipped with the cover body 4 that forms the processing chamber on belt conveyor 3, and the cover body 4 covers conveyer belt 31 and establishes including, and conveyer belt 31 is set up at the processing intracavity, and tobacco material is carried out the temperature-increasing and is controlled wet process in the processing intracavity to improve the tobacco leaf fragrance of tobacco material, guarantee product quality.

The cover body 4 is provided with a circulating air duct communicated with the fan 2, the circulating air duct is provided with a temperature increasing device and a humidity controlling device, the temperature increasing device is used for increasing the temperature of the tobacco materials, and the humidity controlling device is used for increasing the humidity of the tobacco materials. Make the tobacco material intensification through letting in the hot gas flow to the process chamber among the conventional art, but the hot gas flow can be corresponding leads to tobacco material moisture evaporation, consequently this embodiment mixes vapor in the hot gas flow through the accuse wet device, when guaranteeing to improve tobacco material temperature, material moisture changes for a short time, ensures the physical quality and the sensory quality of tobacco material. The circulating air duct comprises an air inlet pipe 7 and an air return pipe 8 which are respectively arranged above and below the belt conveyor 3, and a conveying belt 31 of the belt conveyor 3 is a mesh belt. Hot air containing water vapor is introduced into the installation cavity through the upper air inlet pipe 8, and is discharged through the lower air return pipe 8 and flows back to the fan 2 to form circulating air flow. Conveyer belt 31 is the guipure structure, and partial tobacco that can sieve down makes the bits of broken glass on the one hand, and on the other hand can make the air current that blows below from the top pierce through the guipure, carries out abundant heating, accuse wet to tobacco material inside, avoids tobacco material to appear heating the wet inhomogeneous problem of accuse, and is corresponding, and the air current also can make hide in tobacco material inside makes the bits of broken glass and is blown out, can play the same effect that reduces tobacco material and makes the bits of broken glass.

As shown in fig. 1, in this embodiment, the temperature increasing device includes a heat exchanger 5 disposed on a pipeline of the return air duct 8, and a temperature sensor disposed on a pipeline of the return air duct 8, the temperature sensor is in communication connection with the heat exchanger 5, the temperature sensor detects the temperature of the return air duct 8 and sends the temperature to the heat exchanger 5, and the heat exchanger 5 performs temperature adjustment according to the temperature detected by the temperature sensor to form closed-loop control;

the humidity control device comprises a humidifier 6 arranged on an upper cover of a pipeline of an air inlet pipe 7, as shown in fig. 2, and a humidity sensor arranged on a pipeline of a return air pipe 8, wherein the humidity sensor is in communication connection with the humidifier 6, the humidity sensor detects the humidity of the return air pipe 8 and sends the detected humidity to the humidifier, and the humidifier 6 adjusts the humidity according to the detected humidity of the humidity sensor to form closed-loop control. Wherein, the humidifier 6 is an ultrasonic steam humidifier.

The heat exchanger 5 is arranged on a pipeline of the air return pipe 8, can directly detect the return air temperature, has high detection precision, and the humidifier 6 is arranged on a pipeline of the air inlet pipe 7 and is introduced into the processing cavity together with hot air flow, so that the problem of excessive evaporation of moisture of tobacco materials when the hot air flow is introduced can be avoided, and the product quality is improved.

In some embodiments, the air inlet pipe 7 is provided with an air inlet on the cover 4, the air return pipe 8 is provided with an air return opening on the cover 4, the air inlet and the air return opening are correspondingly arranged, in this structure, the air flow entering from the air inlet can directly flow back through the air return opening right below, the air flow path is a straight path, and the air flow circulation is smoother. The tobacco material that sets up on the guipure receives the air current influence also more direct, mixes into the hot gas flow of vapor and forms through temperature humidity control to the tobacco material, for adopting among the prior art that the cylinder structure lets in the mode of hot gas flow very big reduction the tobacco and made garrulous production, improves the sense organ experience of tobacco material.

It will be appreciated that in some embodiments, the air inlet and the air return can be arranged in a staggered manner, as shown in fig. 1, to relatively prolong the time for accumulating hot air flow and water vapor in the processing chamber, so as to ensure sufficient warming and humidifying of the tobacco material.

As shown in fig. 1, in order to improve the temperature-increasing and humidity-controlling efficiency, a plurality of air inlets and air returns are uniformly arranged along the conveying direction of the belt conveyor 3. In this embodiment, three air inlets are disposed above the cover 4, and two air return inlets are disposed below the cover and at the interval between the three air inlets. In order to improve the air inlet efficiency, the caliber of the air inlet can be prolonged along the conveying direction of the conveying belt 31, so that more tobacco materials on the conveying belt 31 are dried and humidified by air flow.

Furthermore, the pipe diameter of the air inlet pipe 7 at the air inlet can be set to be a radial gradually-contracted structure, air inlet pressure is improved, wind power to tobacco materials is larger, temperature-increasing and humidity-controlling efficiency is improved, and broken residues can be reduced.

Furthermore, the pipe diameter of the return air pipe 8 can be selected to be smaller than that of the air inlet pipe 7, and the suction force at the return air pipe 8 is improved under the suction effect of the fan due to the fact that the internal pressure and the external pressure at the return air pipe 8 are different, so that the tobacco can be broken and discharged more conveniently.

As shown in fig. 3, in some embodiments, for convenience of installation, the cover 4 is a split structure, and the cover 4 includes an upper cover 41 disposed above the belt conveyor 3 and a lower cover 42 disposed below the belt conveyor 3, and the upper cover 41 and the lower cover 42 are fastened together to form a processing chamber. Further, go up cover 41 and lower cover 42 sealing connection, including last cover 414 and lower cover 42 improve sealing performance through setting up sealed the pad in cooperation department, can avoid the heat loss of the device that heats and the moisture loss of accuse wet unit, improve the utilization ratio of hot gas flow and vapor, energy saving, and the cost is reduced, and because the heat that the device that heats formed and the vapor that the accuse wet unit formed can know controllable, heat and moisture that lets in are controlled according to the closed-loop control chain that forms, consequently, go up cover 41 and lower cover 42 sealing connection and can improve the control accuracy, guarantee the finished water content of tobacco material.

As shown in fig. 3, in some embodiments, the upper housing 41 is provided with air deflectors 43 guiding air to the middle of the conveying belt 31 at two sides of the conveying direction of the conveying belt 31. The air deflector 43 is obliquely arranged from two sides of the conveying belt 31 to the middle part, and air flow introduced from the upper part can be guided to the middle part along the air deflector 43, namely, the air flow is blown in from the air inlet vertically, and the air flow can be blown to the tobacco material from the side by utilizing the guiding action of the air deflector 43, so that the temperature-increasing and humidity-controlling adjusting effect of the tobacco material is improved. The air current is guided to the tobacco material both sides by aviation baffle 43 in the processing intracavity, can avoid the air current disorder, improves the air current unobstructed nature.

In addition, the air deflector 43 can also play a role in separating the processing cavity from the transmission mechanism of the belt conveyor 3, so that the influence on the normal work of the belt conveyor 3 caused by the fact that tobacco is broken and blown into the two sides of the conveying belt 31 can be prevented, the service life of the device is prolonged, and the long-term effective use of the device is ensured.

In some embodiments, as shown in fig. 1, the return duct 8 is provided with a settling tank 9 for collecting the tobacco shreds. The settling tank 9 is a gravity settling tank, tobacco blown into the settling tank 9 by the air flow is crushed and falls into the bottom of the settling tank 9 under the action of gravity after entering the settling tank 9, and the air flow enters the air inlet pipe 7 again under the suction action of the fan 2 to complete one cycle. The sedimentation box 9 reduces the broken pieces in the circulating air duct, can avoid the influence of the broken pieces on the fan 2, the temperature increasing device and the humidity control device in the circulating air duct, and prolongs the service life of the device.

Further, in order to ensure the settling effect, a settling chamber is formed inside the settling tank 9, and the radial size of the settling chamber is 5 times of the pipe diameter of the return air pipe 8. It can be understood that, in practical application, the radial dimension of the settling chamber is 3-8 times of the pipe diameter of the return air pipe 8, so that the settling effect can be ensured, and the settling chamber can be reasonably designed according to actual use requirements and the conveying capacity of the conveying belt 31. When the radial dimension of settling chamber is too little, can reduce the effect of subsiding, the tobacco is made garrulous and can be introduced the circulation wind channel, when the radial dimension of settling chamber is too big, can be too much occupy the space below frame 1. The proportional relation between the pipe diameters of the sedimentation cavity and the return air pipe 8 is guaranteed, and the occupied space is reduced while the sedimentation effect is guaranteed.

In addition, a filter screen of suitable mesh may be provided in the settling tank 9 to screen out the tobacco particles.

In order to avoid the tobacco from being broken into pieces and entering the heating device, the heating device is arranged between the settling tank 9 and the fan 2, so that the safety in the production and preparation process is improved.

The technical solution protected by the present invention is not limited to the above embodiments, and it should be noted that the technical solution of any one embodiment is combined with the technical solution of one or more other embodiments in the protection scope of the present invention. Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. The tobacco temperature-increasing and humidity-controlling device is characterized by comprising a rack, a fan and a belt conveyor, wherein the fan and the belt conveyor are mounted on the rack, a cover body forming a processing cavity is arranged on the belt conveyor, a circulating air duct communicated with the fan is arranged on the cover body, the temperature-increasing device and the humidity-controlling device are arranged on the circulating air duct, the circulating air duct comprises an air inlet pipe and an air return pipe which are respectively arranged above and below the belt conveyor, and a conveying belt of the belt conveyor is a mesh belt.

2. The tobacco temperature-increasing and humidity-controlling device as claimed in claim 1, wherein the air inlet pipe is provided with an air inlet on the housing, the air return pipe is provided with an air return opening on the housing, and the air inlet and the air return opening are correspondingly provided.

3. The tobacco temperature-increasing and humidity-controlling device according to claim 2, wherein a plurality of the air inlets and the air return inlets are uniformly arranged along a conveying direction of the belt conveyor.

4. A tobacco temperature and moisture control apparatus as claimed in claim 1, wherein the housing includes an upper housing disposed above the belt conveyor and a lower housing disposed below the belt conveyor.

5. A tobacco temperature and moisture control device according to claim 4, wherein the upper housing and the lower housing are hermetically connected.

6. The tobacco temperature-increasing and humidity-controlling device according to claim 4, wherein air deflectors for guiding air to the middle of the conveying belt are arranged on two sides of the upper cover body in the conveying direction of the conveying belt.

7. A tobacco temperature-increasing and humidity-controlling device according to claim 1, wherein a settling tank for collecting tobacco fragments is arranged on the pipeline of the return air pipe.

8. A tobacco temperature and humidity increasing device according to claim 7, wherein a settling chamber is formed inside the settling tank, and the radial dimension of the settling chamber is 3-8 times the pipe diameter of the return air pipe.

9. A tobacco temperature and moisture control apparatus according to claim 7, wherein the temperature increasing means is disposed between the settling tank and the blower.

10. A tobacco temperature and humidity increasing device according to claim 1, wherein the temperature increasing device comprises a heat exchanger disposed on the return air duct, and a temperature sensor disposed on the return air duct, the temperature sensor being in communication with the heat exchanger;

and/or

The humidity control device comprises a humidifier arranged on an upper cover of the air inlet pipe and a humidity sensor arranged on the return air pipe, and the humidity sensor is in communication connection with the humidifier.

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