CN218571378U

CN218571378U - Horizontal-flow tobacco flue-curing house

Info

Publication number: CN218571378U
Application number: CN202223031953.3U
Authority: CN
Inventors: 曹阳; 刘典; 郭泽华; 张大斌; 刘鹏飞; 饶承麟
Original assignee: Guizhou University
Current assignee: Guizhou University
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-03-07
Anticipated expiration: 2032-11-15

Abstract

The utility model discloses a advection formula tobacco flue-curing house, include: the cigarette containing chamber is in a square shape, and the wall surfaces of two ends of the cigarette containing chamber are respectively provided with an air inlet and an air outlet at intervals along the height direction; the heating chamber is arranged on the outer side of one end of the cigarette containing chamber, and the space in the heating chamber is communicated with the air inlet; the air return chamber is arranged on the outer side of the other end of the tobacco containing chamber, and the space of the air return chamber is communicated with the air outlet; the two ends of the air guide pipe are respectively connected with the heating chamber and the air return chamber; and the first fan is arranged at the air inlet and/or the air outlet. Compared with the prior art, because a plurality of corresponding air inlets and air outlets are adopted to horizontally intake and exhaust the tobacco loading chamber, the temperature difference between the left end and the right end of the tobacco loading chamber can be effectively shortened, and the temperature difference can be reduced to about 2 ℃ by testing according to the size of the existing tobacco loading chamber through the test of an applicant.

Description

Horizontal-flow tobacco flue-curing house

Technical Field

The utility model relates to a advection formula tobacco flue-curing house belongs to tobacco flue-curing equipment technical field.

Background

The traditional tobacco flue-curing house consists of a heating chamber and a tobacco loading chamber, a partition plate is arranged between the heating chamber and the tobacco loading chamber, and the upper end and the lower end of the partition plate are respectively provided with an air return opening and an air inlet. When the tobacco leaves are baked, the tobacco leaves are hung in the tobacco containing chamber, heat generated in the heating chamber is blown into the tobacco containing chamber by the circulating fan through the air inlet at the lower part of the partition plate, part of the heat gradually rises while flowing forwards, and the heat returns to the heating chamber from the air return port at the upper part of the partition plate after passing through a plurality of layers of tobacco leaves. However, since the bottom air in the tobacco-containing chamber passes through the multiple layers of tobacco leaves and is exhausted from the top air return opening, the air at the top and the bottom in the tobacco-containing chamber of the tobacco curing room naturally has a large temperature difference (up to more than 5 ℃), which affects the curing quality of the tobacco leaves at each position. There is a need to improve this.

SUMMERY OF THE UTILITY MODEL

Based on the foregoing, the utility model provides a can shorten the horizontal flow formula tobacco flue-curing house of toasting the temperature difference everywhere in the dress cigarette room to overcome prior art's not enough.

The technical scheme of the utility model is that: a advection tobacco flue-curing house comprising:

the cigarette containing chamber is in a square shape, and the wall surfaces of two ends of the cigarette containing chamber are respectively provided with an air inlet and an air outlet at intervals along the height direction;

the heating chamber is arranged on the outer side of one end of the cigarette containing chamber, and the space in the heating chamber is communicated with the air inlet;

the air return chamber is arranged outside the other end of the tobacco containing chamber, and the space of the air return chamber is communicated with the air outlet;

the two ends of the air guide pipe are respectively connected with the heating chamber and the air return chamber;

and the first fan is arranged at the air inlet and/or the air outlet.

In one example, three layers of smoke hanging beams are arranged in the smoke containing chamber at intervals along the height direction, the number of the air inlets and the number of the air outlets are three, each air inlet is horizontally aligned with the corresponding air outlet, and the air inlets and the air outlets are located between two adjacent layers of smoke hanging beams.

In one example, a heater is provided in the heating chamber.

In one example, the end of the air return chamber far away from the cigarette loading chamber is a funnel-shaped tail end.

In one example, a second fan is mounted at the tail end.

In one example, the middle part of the air guide pipe is positioned at the top of the smoke containing chamber, and two ends of the air guide pipe extend downwards and are respectively connected with the middle parts of the heating chamber and the air return chamber.

The beneficial effects of the utility model are that: after the device is adopted, tobacco leaves are hung on the tobacco hanging beam during baking, the heater is started to heat air, the first fan is started, hot air in the heating chamber enters the tobacco containing chamber from the air inlet to bake the tobacco leaves under the action of the first fan, the hot air is discharged to the air return chamber from the air outlet when flowing into the tail end of the tobacco containing chamber, and finally the hot air is rapidly circulated to the heating chamber under the action of the second fan. Compared with the prior art, because a plurality of corresponding air inlets and air outlets are adopted to horizontally intake and exhaust the tobacco loading chamber, the temperature difference between the left end and the right end of the tobacco loading chamber can be effectively shortened, and the temperature difference can be reduced to about 2 ℃ by testing according to the size of the existing tobacco loading chamber through the test of an applicant. In addition, in the baking process, the air inlet volume of each air inlet can be adjusted by adjusting the rotating frequency of each first fan at the air inlet, so that the temperature difference is further reduced, for example, the rotating frequency of the first fans at the top and the bottom is slightly larger than that of the first fans at the middle position.

Drawings

FIG. 1 is a schematic structural view of a horizontal flow type tobacco flue-curing house;

description of reference numerals:

1 cigarette containing chamber, 11 air inlets, 12 air outlets, 2 heating chambers, 3 air return chambers, 4 air guide pipes, 5 first fans, 6 second fans and 7 heaters.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

Referring to fig. 1, a horizontal-flow tobacco flue-curing house according to the present embodiment includes a tobacco loading chamber 1, a heating chamber 2, an air return chamber 3, an air guide duct 4, a first fan 5, and a second fan 6. The cigarette containing chamber 1 is square, three layers of cigarette hanging beams are installed at intervals in the cigarette containing chamber along the height direction, three air inlets 11 and three air outlets 12 are respectively arranged at intervals on wall surfaces at two ends of the cigarette containing chamber along the height direction (and each layer can also be according to the width of the cigarette containing chamber 1, a plurality of air inlets 11 and air outlets 12 are arranged at horizontal intervals), each air inlet 11 is horizontally aligned with the corresponding air outlet 12, the air inlets 11 and the air outlets 12 are located between two adjacent layers of cigarette hanging beams (it should be noted that the length direction of each cigarette hanging rod should be consistent with the direction between the air inlets 11 and the air outlets 12), a first fan 5 is installed at the air inlets 11 and/or the air outlets 12, and the first fan 5 can be an axial flow fan. The heating chamber 2 is arranged at the outer side of one end of the tobacco loading chamber 1, the space in the heating chamber 2 is communicated with the air inlet 11, the heating chamber 2 is internally provided with a heater 7, the heater 7 can be a heating furnace, and hot air generated in the heating chamber 2 enters the tobacco loading chamber 1 from the air inlet 11. The air return chamber 3 is arranged at the outer side of the other end of the tobacco loading chamber 1, the space of the air return chamber 3 is communicated with the air outlet 12, so that the baked hot air in the tobacco loading chamber 1 flows out of the air outlet 12 into the air return chamber 3, the end of the air return chamber 3 far away from the tobacco loading chamber 1 is a funnel-shaped tail end, the second fan 6 is arranged at the tail end, the funnel-shaped structure can realize the quick guide of the air flow discharged from each air outlet 12, and the second fan 6 can supplement necessary power to accelerate the air flow circulation. The middle part of the air guide pipe 4 is arranged at the top of the smoke containing chamber 1, the two ends of the air guide pipe 4 extend downwards and are respectively connected with the middle parts of the heating chamber 2 and the air return chamber 3, and the air guide pipe 4 can guide hot air in the air return chamber 3 back to the heating chamber 2. In this embodiment, the door of the tobacco loading chamber 1 may be installed on one side wall surface thereof, the first fan 5 is installed at the air inlet 11, and a moisture exhausting window is further disposed in the heating chamber 2, which is the same as the existing advection type tobacco flue-curing house and is not described herein again.

The operating principle of the advection type tobacco flue-curing house is as follows: during operation, tobacco leaves are hung on the tobacco hanging beam, the heater 7 is started to heat air, the first fan 5 is started, hot air in the heating chamber 2 enters the tobacco containing chamber 1 from the air inlet 11 to bake the tobacco leaves under the action of the first fan 5, the hot air is discharged into the air return chamber 3 from the air outlet 12 when flowing into the tail end of the tobacco containing chamber 1, and finally the hot air is rapidly circulated into the heating chamber 2 under the action of the second fan 6. Compared with the prior art, because the horizontal air intake and exhaust of the cigarette containing chamber 1 are carried out by adopting a plurality of corresponding air inlets 11 and air outlets 12, the temperature difference between the left end and the right end of the cigarette containing chamber 1 can be effectively shortened, and the temperature difference can be reduced to about 2 ℃ by the test of the applicant according to the size of the existing cigarette containing chamber 1. In addition, during the baking process, the air intake rate of each air inlet 11 can be adjusted by adjusting the rotation frequency of each first fan 5 at the air inlet 11, so as to further reduce the temperature difference, for example, the rotation frequency of the top and bottom first fans 5 is slightly higher than that of the first fan 5 at the middle position.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A advection tobacco flue-curing house, comprising:

the cigarette containing chamber (1) is square, and the wall surfaces of two ends of the cigarette containing chamber are respectively provided with an air inlet (11) and an air outlet (12) at intervals along the height direction of the cigarette containing chamber;

the heating chamber (2) is arranged outside one end of the tobacco containing chamber (1), and the space in the heating chamber (2) is communicated with the air inlet (11);

the air return chamber (3) is arranged outside the other end of the tobacco containing chamber (1), and the space of the air return chamber (3) is communicated with the air outlet (12);

the two ends of the air guide pipe (4) are respectively connected with the heating chamber (2) and the air return chamber (3);

the first fan (5) is arranged at the air inlet (11) and/or the air outlet (12).

2. The advection type tobacco flue-curing house according to claim 1, wherein three layers of tobacco hanging beams are arranged in the tobacco loading chamber (1) at intervals along the height direction, the number of the air inlets (11) and the number of the air outlets (12) are three, each air inlet (11) is horizontally aligned with the corresponding air outlet (12), and the air inlets (11) and the air outlets (12) are positioned between two adjacent layers of the tobacco hanging beams.

3. The advection tobacco flue-curing house according to claim 1, characterized in that a heater (7) is provided in the heating chamber (2).

4. The advection type tobacco flue-curing house according to claim 1, characterized in that the end of the air return chamber (3) far away from the tobacco loading chamber (1) is a funnel-shaped tail end.

5. The advection flue-curing house of claim 4 wherein a second fan (6) is mounted at the tail end.

6. The advection type tobacco flue-curing house according to claim 1, wherein the middle part of the air guide pipe (4) is positioned at the top of the tobacco loading chamber (1), and the two ends of the air guide pipe extend downwards and are respectively connected with the middle parts of the heating chamber (2) and the air return chamber (3).