Tobacco flake drying device

Abstract

When tobacco flakes need to be re-dried in the tobacco flake processing process, the tobacco flakes can be conveyed into a drying box through a conveying assembly, then a heat pump drying assembly is operated to generate hot air, the hot air is conveyed to the lower portion of the drying box, and then the hot air penetrates through an air uniformizing plate to reach the conveying assembly. The tobacco flakes on the conveying assembly are redried and dried, then redried hot air enters the hot air gathering pipeline through all the air collecting assemblies and the air inlet, meanwhile, the hot air is filtered through the air filter net, and the situation that the broken tobacco flakes enter the hot air gathering pipeline is avoided; then hot air is guided back into the heat pump drying assembly through a hot air gathering pipeline to be circularly dried, meanwhile, the difference of the hot air speeds in all the air collecting assemblies can be reduced by controlling the hot air speeds in all the air collecting assemblies, meanwhile, a vibration motor can be operated, the vibration motor drives the conveying assembly to vibrate, and the tobacco flakes on the conveying assembly are flattened.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco sheet processing technical field especially, relates to a tobacco sheet drying device. BACKGROUND

[0002] With the continuous development of domestic fine threshing and redrying process and equipment, in order to improve the quality of tobacco, the redrying enterprise pays more and more attention to the moisture stability and consistency of dried tobacco sheet.

[0003] At present, the length of each drying partition of the existing tobacco sheet redrying equipment is 4-8 meters, the function hot air sent by the tunnel side fan is adjusted by the air uniformizing plate located below the tobacco sheet material continuous conveying device in a differential damping mode, so as to make the function hot air wind field intensity through the tobacco sheet material uniform. Since the airflow backwind after passing through the tobacco sheet material is not effectively limited, the distance and orientation of different airflow backwind points from the fan are different, the pressure and wind speed of different airflow backwind points are greatly different, and the function hot air wind field intensity through the tobacco sheet material is still not uniform, which leads to poor moisture consistency of processed tobacco sheet material and product quality that does not meet the requirements of homogenization processing.

[0004] At the same time, the tobacco sheet is not uniformly spread, which leads to uneven drying of the tobacco sheet. INVENTION CONTENTS

[0005] (I) technical problem to be solved

[0006] In order to solve the above problems of the prior art, the utility model provides a tobacco sheet drying device, which can effectively limit the airflow backwind after passing through the tobacco sheet material, make the function hot air wind field intensity through the tobacco sheet material more uniform, improve the moisture consistency of the tobacco sheet material, improve the product quality, and make the tobacco sheet more uniformly spread during drying.

[0007] (II) technical scheme

[0008] In order to achieve the above purpose, the utility model adopts the main technical scheme including:

[0009] A tobacco sheet drying device, including drying box, heat pump drying assembly, air uniformizing plate, conveying assembly and air uniformizing mechanism and hot air collection pipeline, the lower part of the heat pump drying assembly is connected with the lower part of the drying box, the lower part of the drying box is installed with the air uniformizing plate, the middle part of the drying box is installed with the conveying assembly, the upper part of the drying box is installed with the air uniformizing mechanism, the air uniformizing mechanism is arranged above the conveying assembly, the upper part of the air uniformizing mechanism is connected with one side of the hot air collection pipeline, the other side of the hot air collection pipeline is connected with the upper part of the heat pump drying assembly.

[0010] The conveying assembly is installed in the interior of the drying box through a plurality of elastic members, and vibration motors are installed on both sides of the conveying assembly;

[0011] The air equalizing mechanism comprises at least two air collecting assemblies arranged above the conveying assembly, the lower part of each air collecting assembly is connected with the upper part of the drying box, and the upper part of each air collecting assembly is connected with the hot air collecting pipeline.

[0012] At least two air inlets are arranged on the hot air collecting pipeline, one air collecting assembly is connected with one air inlet, and a filter screen is installed on each air inlet.

[0013] Further, the elastic member is a tension spring.

[0014] Further, the air collecting assemblies are arranged in a grid shape on the drying box.

[0015] Further, the air collecting assembly comprises an air collecting cover, an air guide pipe and an air valve, the lower part of the air collecting cover is connected with the upper part of the drying box, the upper part of the air collecting cover is connected with the hot air collecting pipeline through the air guide pipe, and the air valve is installed in the interior of the air guide pipe.

[0016] Further, the air collecting assembly further comprises an anemometer, and the anemometer is arranged in the air guide pipe.

[0017] Further, the air equalizing plate is arranged in an inclined manner.

[0018] Further, the heat pump drying assembly comprises a mounting box, a fan and a heat pump heater, the mounting box is fixedly connected with the drying box, an air inlet is arranged on the upper part of the mounting box, an air outlet is arranged on the lower part of the mounting box, the lower part of the mounting box is connected with the lower part of the drying box through the air outlet, the heat pump heater is installed on the upper part of the mounting box, the fan is installed on the lower part of the mounting box, and the upper part of the mounting box is connected with the other side of the hot air collecting pipeline through the air inlet.

[0019] Further, an air exhaust pipe is further arranged, and the air exhaust pipe is connected with the hot air collecting pipeline.

[0020] (Three) beneficial effects

[0021] The beneficial effect of the utility model is: when needing to re-dry the tobacco sheet in the tobacco sheet processing process, the tobacco sheet can be sent into the drying box through the conveying assembly, then the heat pump drying assembly is operated, the heat pump drying assembly generates hot air, and the hot air is sent into the lower part of the drying box, then the hot air passes through the air equalizing plate to reach the conveying assembly, and the tobacco sheet on the conveying assembly is re-dried, then the re-dried hot air enters the hot air collection pipeline through each air collecting assembly and the air inlet, at the same time, the hot air is filtered through the air filtering net, avoiding the broken tobacco sheet from entering the hot air collection pipeline, then the hot air is guided back into the heat pump drying assembly through the hot air collection pipeline to be circularly dried, at the same time, the hot air speed in each air collecting assembly can be controlled to reduce the difference of the hot air speed in each air collecting assembly, at the same time, the vibration motor can be operated to drive the conveying assembly to vibrate, so that the tobacco sheet on the conveying assembly is flattened, thereby the air return after passing through the tobacco sheet material can be effectively limited, the function hot air wind field intensity after passing through the tobacco sheet material is more uniform, the moisture of the tobacco sheet material is consistent, the product quality is improved, and the tobacco sheet is more evenly spread during drying. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the whole structure schematic view of the tobacco sheet drying device of the embodiment of the utility model;

[0023] Figure 2 It is the conveying assembly structure schematic view in the tobacco sheet drying device of the embodiment of the utility model;

[0024] EXPLANATION OF REFERENCE NUMERALS

[0025] Hot air collection pipeline 1, exhaust pipe 2, air guide pipe 3, air valve 4, air collecting cover 5, conveying assembly 6, air equalizing plate 7, drying box 8, mounting box 9, fan 10, heat pump heater 11, elastic member 12, vibration motor 13. DETAILED DESCRIPTION

[0026] In order to better explain the utility model, so as to facilitate understanding, the utility model is described in detail in combination with the specific embodiment and the accompanying drawings.

[0027] Please refer to Figure 1 And Figure 2The utility model discloses a tobacco sheet drying device, including drying box 8, heat pump drying assembly, even wind board 7, conveying component 6 and even wind mechanism and hot -blast collection pipeline 1, the lower part of heat pump drying assembly is connected with the lower part of drying box 8, the lower part of drying box 8 is installed even wind board 7, the middle part of drying box 8 is installed conveying component 6, the upper portion of drying box 8 is installed even wind mechanism, even wind mechanism sets up in the top of conveying component 6, the upper portion of even wind mechanism is connected with one side of hot -blast collection pipeline 1, the other side of hot -blast collection pipeline 1 is connected with the upper portion of heat pump drying assembly,

[0028] Conveying component 6 is installed in the inside of drying box 8 through a plurality of elastic members 12, and both sides of conveying component 6 are provided with vibration motors 13.

[0029] The even wind mechanism comprises at least two air collecting assemblies, the air collecting assemblies are arranged above the conveying component 6, the lower parts of the air collecting assemblies are connected with the upper part of the drying box 8, and the upper parts of the air collecting assemblies are connected with the hot-air collection pipeline 1.

[0030] The hot-air collection pipeline 1 is provided with at least two air inlets, one air collecting assembly is connected with one air inlet, and the air inlets are all provided with air filter nets.

[0031] The working principle of the utility model is as follows: when it is needed to re-dry tobacco sheets during the tobacco sheet processing, the tobacco sheets can be sent into the drying box 8 through the conveying component 6, then the heat pump drying assembly is operated to make the heat pump drying assembly generate hot air and send the hot air into the lower part of the drying box 8, then the hot air passes through the even wind board 7 to reach the conveying component 6 and re-dry the tobacco sheets on the conveying component 6, then the re-dried hot air enters the hot-air collection pipeline 1 through the air collecting assemblies and the air inlets, is filtered through the air filter nets, and the broken tobacco sheets are prevented from entering the hot-air collection pipeline 1, then the hot air is guided back into the heat pump drying assembly through the hot-air collection pipeline 1 to be circulated and dried, the hot air speed in each air collecting assembly can be controlled to reduce the difference between the hot air speeds in the air collecting assemblies, and the vibration motor 13 can be operated to drive the conveying component 6 to vibrate, so that the tobacco sheets on the conveying component 6 are flattened.

[0032] Further, the elastic members 12 are tension springs.

[0033] From the above description, it can be known that the vibration motor 13 can better drive the conveying component 6 to vibrate.

[0034] Further, the air collecting assemblies are arranged in a grid shape on the drying box 8.

[0035] From the above description, it is beneficial to collect the hot air above the drying box 8 through the air collecting assembly.

[0036] Further, the air collecting assembly comprises an air collecting cover 5, an air guide pipe 3 and an air valve 4, the lower part of the air collecting cover 5 is connected with the upper part of the drying box 8, the upper part of the air collecting cover 5 is connected with the hot air collecting pipeline 1 through the air guide pipe 3, and the air valve 4 is installed in the air guide pipe 3.

[0037] From the above description, it is beneficial to make the re-dried hot air enter the air guide pipe 3 through the air collecting cover 5, and then enter the hot air collecting pipeline 1 through the air guide pipe 3, and the air speed entering the air guide pipe 3 can be controlled through the opening degree of the air valve 4, so that the air speeds in the air guide pipes 3 are close to each other.

[0038] Further, the air collecting assembly further comprises an air speed meter, and the air speed meter is arranged in the air guide pipe 3.

[0039] From the above description, it is beneficial to calculate the air speed in the air guide pipe 3 through the air speed meter.

[0040] Further, the air uniformizing plate 7 is arranged in an inclined manner.

[0041] From the above description, it is beneficial to make the hot air enter the drying box 8 more uniformly.

[0042] Further, the heat pump drying assembly comprises a mounting box 9, a fan 10 and a heat pump heater 11, the mounting box 9 is fixedly connected with the drying box 8, the upper part of the mounting box 9 is provided with an air inlet, the lower part of the mounting box 9 is provided with an air outlet, the lower part of the mounting box 9 is communicated with the lower part of the drying box 8 through the air outlet, the heat pump heater 11 is installed on the upper part of the mounting box 9, the fan 10 is installed on the lower part of the mounting box 9, and the upper part of the mounting box 9 is connected with the other side of the hot air collecting pipeline 1 through the air inlet.

[0043] From the above description, it is beneficial to heat the air on the upper part of the mounting box 9 through the heat pump heater 11, then the fan 10 drives the hot air to flow, and the air in the hot air collecting pipeline 1 is heated through the heat pump heater 11 under the guidance of the fan 10 through the air inlet, and then flows into the drying box 8 through the air outlet.

[0044] Further, the exhaust pipe 2 is connected with the hot air collecting pipeline 1.

[0045] From the above description, it is beneficial to exhaust the excess air through the exhaust pipe 2. Embodiment one

[0046] Please refer to Figure 1 andFigure 2 A tobacco sheet drying device, comprising a drying box 8, a heat pump drying assembly, an air equalizing plate 7, a conveying assembly 6, an air equalizing mechanism and a hot air collecting pipeline 1, the lower part of the heat pump drying assembly is connected with the lower part of the drying box 8, the lower part of the drying box 8 is provided with the air equalizing plate 7, the middle part of the drying box 8 is provided with the conveying assembly 6, the upper part of the drying box 8 is provided with the air equalizing mechanism, the air equalizing mechanism is arranged above the conveying assembly 6, the upper part of the air equalizing mechanism is connected with one side of the hot air collecting pipeline 1, the other side of the hot air collecting pipeline 1 is connected with the upper part of the heat pump drying assembly;

[0047] The conveying assembly 6 is a net chain conveyor;

[0048] The conveying assembly 6 is arranged in the interior of the drying box 8 through a plurality of elastic members 12, and both sides of the conveying assembly 6 are provided with vibration motors 13;

[0049] The air equalizing mechanism comprises at least two air collecting assemblies, the air collecting assemblies are arranged above the conveying assembly 6, the lower part of the air collecting assembly is connected with the upper part of the drying box 8, and the upper part of the air collecting assembly is connected with the hot air collecting pipeline 1;

[0050] At least two air inlets are arranged on the hot air collecting pipeline 1, one air collecting assembly is connected with one air inlet, and the air inlets are provided with air filter nets;

[0051] The elastic member 12 is a tension spring;

[0052] The air collecting assemblies are arranged in a grid shape on the drying box 8;

[0053] The air collecting assembly comprises an air collecting cover 5, an air guide pipe 3 and an air valve 4, the lower part of the air collecting cover 5 is connected with the upper part of the drying box 8, the upper part of the air collecting cover 5 is connected with the hot air collecting pipeline 1 through the air guide pipe 3, and the air guide pipe 3 is provided with the air valve 4 in the interior;

[0054] The air collecting cover 5 is in the shape of a circular truncated cone, the expansion angle of the lower part of the air collecting cover 5 is A, and A is 20-60°;

[0055] The expansion angle A is 40°;

[0056] The upper part of the drying box 8 is provided with a plurality of openings, and the lower part of one air collecting cover 5 is fixedly connected with one opening;

[0057] The lower part of the air guide pipe 3 is welded with the upper part of the air collecting cover 5, and the upper part of the air guide pipe 3 is connected with the hot air collecting pipeline 1;

[0058] The air collecting assembly further comprises an anemometer, and the anemometer is arranged in the air duct 3;

[0059] The air equalizing plate 7 is arranged in an inclined manner;

[0060] The air equalizing plate 77 is higher on the side close to the fan 10 than on the other side of the air equalizing plate 7;

[0061] The heat pump drying assembly comprises a mounting box 9, a fan 10 and a heat pump heater 11, the mounting box 9 is fixedly connected with the drying box 8, an air inlet is arranged at the upper portion of the mounting box 9, an air outlet is arranged at the lower portion of the mounting box 9, the lower portion of the mounting box 9 is communicated with the lower portion of the drying box 8 through the air outlet, the heat pump heater 11 is installed at the upper portion of the mounting box 9, the fan 10 is installed at the lower portion of the mounting box 9, and the upper portion of the mounting box 9 is connected with the other side of the hot air collecting pipeline 1 through the air inlet;

[0062] The air exhaust pipe 2 is further arranged, the air exhaust pipe 2 is connected with the hot air collecting pipeline 1, and an air exhaust machine is arranged in the air exhaust pipe 22, so that air exchange is facilitated.

[0063] The air inlet pipe is further arranged on the hot air collecting pipeline 1, so that the hot air collecting pipeline 1 is facilitated to be supplied with air;

[0064] The controller is electrically connected with the air exhaust machine, the air valve 4, the anemometer, the fan 10, the heat pump heater 11 and the conveying assembly 6.

[0065] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, the standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional types in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0066] The above merely describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent transformation or direct or indirect application in the related technical field according to the content of the description and drawings of the utility model is also included in the patent protection range of the utility model.

Claims

1. A tobacco sheet drying apparatus, characterized by: The device comprises a drying box, a heat pump drying assembly, an air equalizing plate, a conveying assembly, an air equalizing mechanism and a hot air collection pipeline, the lower part of the heat pump drying assembly is connected with the lower part of the drying box, the lower part of the drying box is installed with the air equalizing plate, the middle part of the drying box is installed with the conveying assembly, the upper part of the drying box is installed with the air equalizing mechanism, the air equalizing mechanism is arranged above the conveying assembly, the upper part of the air equalizing mechanism is connected with one side of the hot air collection pipeline, the other side of the hot air collection pipeline is connected with the upper part of the heat pump drying assembly; The conveying assembly is installed in the interior of the drying box through a plurality of elastic members, and both sides of the conveying assembly are installed with vibration motors; The air equalizing mechanism comprises at least two air collecting assemblies, the air collecting assemblies are arranged above the conveying assembly, the lower parts of the air collecting assemblies are connected with the upper part of the drying box, and the upper parts of the air collecting assemblies are connected with the hot air collection pipeline; At least two air inlets are arranged on the hot air collection pipeline, one air collecting assembly is connected with one air inlet, and the air inlets are installed with air filter nets.

2. The tobacco sheet drying apparatus of claim 1, wherein: The elastic members are tension springs.

3. The tobacco sheet drying apparatus of claim 1, wherein: The air collecting assemblies are arranged in a grid shape on the drying box.

4. The tobacco sheet drying apparatus of claim 3, wherein: The air collecting assembly comprises an air collecting cover, an air guide pipe and an air valve, the lower part of the air collecting cover is connected with the upper part of the drying box, the upper part of the air collecting cover is connected with the hot air collection pipeline through the air guide pipe, and the air guide pipe is installed with the air valve.

5. The tobacco sheet drying apparatus as claimed in claim 4, wherein: The air collecting assembly further comprises an anemometer, and the air guide pipe is arranged with the anemometer.

6. The tobacco sheet drying apparatus as claimed in claim 1, wherein: The air equalizing plate is arranged in an inclined manner.

7. The tobacco sheet drying apparatus as claimed in claim 1, wherein: The heat pump drying assembly comprises a mounting box, a fan and a heat pump heater, the mounting box is fixedly connected with the drying box, the upper part of the mounting box is provided with an air inlet, the lower part of the mounting box is provided with an air outlet, the lower part of the mounting box is communicated with the lower part of the drying box through the air outlet, the upper part of the mounting box is installed with the heat pump heater, the lower part of the mounting box is installed with the fan, and the upper part of the mounting box is connected with the other side of the hot air collection pipeline through the air inlet.

8. The tobacco sheet drying apparatus as claimed in claim 1, wherein: The device further comprises an exhaust pipeline, and the exhaust pipeline is connected with the hot air collection pipeline.

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