Negative pressure combustion tobacco curing barn heat supply device

Abstract

The utility model discloses a negative pressure combustion tobacco leaf curing barn heat supply device. According to the technical scheme, the device comprises a heating chamber, a furnace body, a heat exchanger, a chimney and a circulating fan, the furnace body, the heat exchanger and the chimney are arranged in the heating chamber in sequence from bottom to top, an induced draft fan is arranged in the chimney, the induced draft fan guides airflow to flow to the heat exchanger from the interior of the furnace body, the airflow passes through the chimney and then is exhausted, and the interior of the furnace body is in a negative pressure state. Tobacco fire can be prevented in the tobacco flue-curing process, potential safety hazards are eliminated, and economic losses are avoided.

Description

Technical Field

[0001] The utility model relates to the field of flue-curing barn structures, and more specifically to a heating device for a negative pressure combustion tobacco leaf flue-curing barn. Background Art

[0002] The existing tobacco leaf curing room heating device is composed of a blower, a furnace, a heat exchanger, a chimney, and a circulating fan arranged inside or outside the heating room. The upper and lower ends of the heating room are connected to the curing room. The furnace, the heat exchanger, and the chimney are arranged in sequence from bottom to top. The blower is arranged outside the furnace to blow the airflow to the furnace to improve the combustion efficiency and the calorific value when necessary. The airflow enters the furnace from the blower and then passes through the heat exchanger and leaves the heating room from the chimney. This channel is the inner channel, and the outer side of the inner channel is the outer channel. The circulating fan is arranged in the outer channel to blow the heat in the heating room to the curing room for curing tobacco.

[0003] This structure has the following problems: when cracks and holes appear in the furnace body after long-term use, the furnace body is in a positive pressure state, and sparks and flames will jump out from the cracks and holes, and then be carried into the curing room by the circulating fan, causing the curing room to catch fire, causing the tobacco leaves in the curing room to burn, resulting in economic losses and safety hazards. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a negative pressure combustion tobacco curing room heating device with high safety.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a negative pressure combustion tobacco leaf curing room heating device, comprising a heating chamber and a furnace body, a heat exchanger, a chimney and a circulating fan arranged in the heating chamber, the furnace body, the heat exchanger and the chimney being arranged in sequence from bottom to top, and an induced draft fan being arranged in the chimney, the induced draft fan guiding the airflow to flow from the furnace body to the heat exchanger, passing through the chimney and then being discharged, and the furnace body is in a negative pressure state.

[0006] As a further improvement of the utility model, a feeding mechanism is provided on one side of the heating chamber, and a feeding port is provided on the side of the furnace body, and the feeding port is communicated with the feeding mechanism.

[0007] As a further improvement of the utility model, the feeding mechanism includes:

[0008] A bracket is arranged at one side of the heating chamber;

[0009] A feeding pipe is fixedly arranged on the frame;

[0010] A material storage box is fixedly arranged on the frame and located on the upper side of the feeding pipe, and the material storage box is communicated with the feeding pipe;

[0011] A feeding screw is rotatably arranged in the feeding tube;

[0012] A sealing fixing plate, fixedly arranged on the bracket, wherein the sealing fixing plate is connected to the feeding pipe;

[0013] A transmission pipe is connected to the fixing plate, and the transmission pipe is connected to the furnace body.

[0014] As a further improvement of the utility model, a cleaning push rod is provided on the bracket, and the cleaning push rod is slidably arranged on the bracket. A cleaning hole is provided on the sealing fixing plate for the movement of the cleaning push rod.

[0015] As a further improvement of the utility model, an observation window assembly is provided on the frame, and the observation window assembly includes a frame and a transparent piece. An observation hole is provided on the sealing fixing plate, the transparent piece is arranged at one end of the frame, and the other end of the frame is connected to the observation hole.

[0016] As a further improvement of the utility model, the bracket is provided with universal wheels.

[0017] The utility model has the beneficial effects of preventing tobacco leaves from catching fire during the tobacco curing process, eliminating potential safety hazards and avoiding economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an existing tobacco leaf curing room heating device;

[0019] Figure 2 This is a schematic diagram of the structure of the negative pressure combustion tobacco leaf curing room heating device of the present application;

[0020] Figure 3 It is a structural diagram of the feeding mechanism.

[0021] Marking instructions: 1. Heating chamber; 2. Furnace body; 21. Loading port; 3. Heat exchanger; 4. Chimney; 5. Circulation fan; 6. Draft fan; 61. Blower; 7. Loading mechanism; 71. Bracket; 72. Loading pipe; 73. Storage box; 74. Feeding screw; 75. Sealing fixing plate; 76. Transmission pipe; 77. Cleaning push rod; 78. Cleaning hole; 8. Observation window assembly; 81. Frame; 82. Transparent piece; 83. Observation hole; 9. Universal wheel. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0023] Reference Figure 1-Figure 3As shown, a negative pressure combustion tobacco leaf curing room heating device of the present embodiment includes a heating chamber 1 and a furnace body 2, a heat exchanger 3, a chimney 4 and a circulating fan 5 arranged in the heating chamber 1. The furnace body 2, the heat exchanger 3 and the chimney 4 are arranged in sequence from bottom to top. An induced draft fan 6 is provided in the chimney 4. The induced draft fan 6 guides the airflow to flow from the furnace body 2 to the heat exchanger 3, passes through the chimney 4 and is then discharged. The furnace body 2 is in a negative pressure state.

[0024] Through the above technical solution, the induced draft fan 6 can be set at any position of the chimney 4. During the tobacco curing process, the induced draft fan 6 runs to guide the airflow from bottom to top, so that negative pressure appears in the furnace body 2, and it supports combustion during normal use. The circulating fan 5 has the same structure and function as the existing one. The circulating fan 5 runs and blows downward, and the heat in the heating chamber 1 enters the curing room from the bottom along with the airflow, and then returns to the heating chamber 1 from the upper end of the curing room.

[0025] Even if cracks / holes appear in the furnace body 2, due to the negative pressure inside the furnace body 2, part of the airflow outside the furnace body 2 will enter the furnace body 2, thus preventing sparks and flames from jumping out from the cracks and holes, eliminating safety hazards and improving safety. At the same time, it can prevent tobacco leaves from catching fire and avoid economic losses.

[0026] As an improved specific implementation, a feeding mechanism 7 is provided on one side of the heating chamber 1 , and a feeding port 21 is provided on the side of the furnace body 2 , and the feeding port 21 is connected to the feeding mechanism 7 .

[0027] Through the above technical solution, the feeding device is detachably connected to the furnace body 2, which makes feeding convenient and cleaning the furnace body 2 convenient.

[0028] As an improved specific implementation, the feeding mechanism 7 includes:

[0029] A bracket 71 is arranged at one side of the heating chamber 1;

[0030] A feeding pipe 72 is fixedly mounted on the frame;

[0031] A material storage box 73 is fixedly arranged on the frame and is located on the upper side of the feeding pipe 72. The material storage box 73 is communicated with the feeding pipe 72;

[0032] A feeding screw 74 is rotatably disposed in the feeding tube 72;

[0033] A sealing fixing plate 75 is fixedly disposed on the bracket 71, and the sealing fixing plate 75 is connected to the feeding pipe 72;

[0034] The transmission pipe 76 is connected to the fixing plate, and the transmission pipe 76 is connected to the furnace body 2 .

[0035] Through the above technical solution, the feeding screw 74 is connected to the driving mechanism, and is driven to rotate by the driving mechanism. When the feeding screw 74 rotates, the material falling from the storage box 73 into the feeding pipe 72 is transmitted to the heating chamber 1. After leaving the feeding pipe 72, the material enters the transmission pipe 76, and then enters the heating chamber 1 for combustion. The sealing fixing plate 75 is heat-insulated and flame-retardant. The sealing fixing plate 75 has a through hole for the material output from the feeding pipe 72 to fall into the transmission pipe 76.

[0036] As an improved specific implementation, a cleaning push rod 77 is provided on the bracket 71, and the cleaning push rod 77 is slidably arranged on the bracket 71. A cleaning hole 78 is provided on the sealing fixing plate 75 for the cleaning push rod 77 to move.

[0037] Through the above technical solution, the cleaning push rod 77 can be driven manually or electrically, and the end of the cleaning push rod 77 has a cleaning plate, which has a large contact area and high cleaning efficiency. When cleaning, the cleaning rod slides in the cleaning hole 78.

[0038] As an improved specific implementation, the frame is provided with an observation window assembly 8, and the observation window assembly 8 includes a frame body 81 and a transparent piece 82. The sealing fixing plate 75 is provided with an observation hole 83. The transparent piece 82 is arranged at one end of the frame body 81, and the other end of the frame body 81 is connected to the observation hole 83.

[0039] Through the above technical solution, the transparent sheet 82 is far away from the fire source, has a long service life and high stability, and the combustion situation can be observed through the transparent sheet 82, which is convenient for manual judgment of the feeding speed.

[0040] As an improved specific implementation, the bracket 71 is provided with a universal wheel 9 .

[0041] Through the above technical solution, the universal wheel 9 is provided to facilitate the movement and disassembly of the feeding mechanism 7 and to facilitate the cleaning of the interior of the furnace body 2, and is easy to use.

[0042] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A negative pressure combustion tobacco leaf curing room heating device, comprising a heating chamber (1) and a furnace body (2), a heat exchanger (3), a chimney (4) and a circulating fan (5) arranged in the heating chamber (1), wherein the furnace body (2), the heat exchanger (3) and the chimney (4) are arranged in sequence from bottom to top, and characterized in that: An induced draft fan (6) is arranged in the chimney (4), and the induced draft fan (6) guides the airflow from the furnace body (2) to flow toward the heat exchanger (3), passes through the chimney (4), and then is discharged, so that the furnace body (2) is in a negative pressure state.

2. The negative pressure combustion tobacco leaf curing room heating device according to claim 1 is characterized in that: A loading mechanism (7) is provided on one side of the heating chamber (1), and a loading port (21) is provided on the side of the furnace body (2), wherein the loading port (21) is in communication with the loading mechanism (7).

3. The negative pressure combustion tobacco leaf curing room heating device according to claim 2 is characterized in that: The feeding mechanism (7) comprises: A bracket (71) is arranged on one side of the heating chamber (1); A feeding pipe (72) is fixedly arranged on the frame; A material storage box (73) is fixedly arranged on the frame and located on the upper side of the feeding pipe (72), and the material storage box (73) is communicated with the feeding pipe (72); A feeding screw (74) is rotatably disposed in the feeding tube (72); A sealing fixing plate (75) is fixedly arranged on the bracket (71), and the sealing fixing plate (75) is connected to the feeding pipe (72); A transmission pipe (76) is connected to the fixing plate, and the transmission pipe (76) is connected to the furnace body (2).

4. The negative pressure combustion tobacco leaf curing room heating device according to claim 3 is characterized in that: The bracket (71) is provided with a cleaning push rod (77), and the cleaning push rod (77) is slidably arranged on the bracket (71). The sealing fixing plate (75) is provided with a cleaning hole (78) for the cleaning push rod (77) to move.

5. The negative pressure combustion tobacco leaf curing room heating device according to claim 3 is characterized in that: The frame is provided with an observation window assembly (8), the observation window assembly (8) comprising a frame body (81) and a transparent sheet (82), the sealing fixing plate (75) is provided with an observation hole (83), the transparent sheet (82) is arranged at one end of the frame body (81), and the other end of the frame body (81) is connected to the observation hole (83).

6. The negative pressure combustion tobacco leaf curing room heating device according to claim 3, characterized in that: The bracket (71) is provided with a universal wheel (9).

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