Direct-fired drying furnace

Abstract

The utility model provides a direct combustion type drying oven, which relates to the field of drying ovens and comprises a drying oven body and a drying table, a drying port is arranged at one end of the top in the drying oven body, first air ducts are arranged on two sides of the drying port, first air ports are arranged on the inner sides of the first air ducts, and a second air duct is arranged at the bottom of the drying port through a connecting duct. After the first connecting valve is opened, hot air of the drying opening enters the first air channel, the hot air is guided out through the first air opening in the corresponding position by opening the first valve in the corresponding position, and therefore the lower drying work is achieved. After a second connecting valve and a third connecting valve are opened, hot air enters a second air channel through a connecting channel, and the hot air is guided out through a second air opening in the corresponding position by opening the second valve in the corresponding position, so that upper drying work is achieved, and fixed-point all-directional drying work can be conducted on workpieces through the matched operation; and the drying effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of drying furnaces, in particular to a direct-fired drying furnace. Background Art

[0002] The direct-fired drying furnace utilizes fuel and a burner to heat and burn at the air outlet, and dries the workpieces in the furnace through the hot air formed. Patent document: CN 212390798 U proposes a natural gas direct-fired drying furnace, which can achieve the purpose of convenient cleaning and can timely clean the workpieces attached to the surface of the conveyor belt, ensuring the cleanliness of the conveyor belt when drying other workpieces next time, saving cleaning time. The problem with this technical solution is that most of the above-mentioned existing direct-fired drying furnaces directly introduce hot air into the furnace for drying, but in actual use, factors such as the size of the workpiece and the placement position may cause uneven heating of some areas of the workpiece, resulting in unsatisfactory drying effect and inconvenience in use. Utility Model Content

[0003] The purpose of the utility model is to solve the following problems existing in the prior art: the above-mentioned existing direct-fired drying furnaces mostly directly introduce hot air into the furnace for drying, but in actual use, factors such as the size of the workpiece and the placement position may cause uneven heating of some areas of the workpiece, resulting in less than ideal drying effect and inconvenience in use.

[0004] In order to solve the problems existing in the prior art, the utility model provides a direct-fired drying furnace, including a drying furnace body and a drying table, the drying furnace body is provided with a drying table, one end of the top of the drying furnace body is provided with a drying port, first air ducts are provided on both sides of the drying port, a first air port is provided on the inner side of the first air duct, a second air duct is provided at the bottom of the drying port through a connecting duct, and a second air port is provided on the inner side of the second air duct.

[0005] Furthermore, a first connecting valve is provided between the inner side of the first air duct and the drying port, and a second connecting valve is provided between the top of the connecting duct and the drying port. After the first connecting valve is opened, hot air from the drying port enters the first air duct, and after the second connecting valve is opened, hot air enters the connecting duct.

[0006] Furthermore, a first valve is provided between the inner side of the first air outlet and the first air duct. By opening the first valve at the corresponding position, hot air is guided out through the first air outlet at the corresponding position, thereby achieving downward drying.

[0007] Furthermore, a second valve is provided between the inner side of the second air outlet and the second air duct. By opening the second valve at the corresponding position, hot air is guided out through the second air outlet at the corresponding position, thereby achieving the drying work.

[0008] Furthermore, third connecting valves are provided between the two sides of the connecting channel and the second air channel. After the second connecting valve and the third connecting valve are opened, the hot air at the drying port enters the second air channel through the connecting channel.

[0009] Furthermore, the first air outlet and the second air outlet are both provided with electric wind shields at their air outlets, and the wind directions of the first air outlet and the second air outlet can be adjusted by adjusting the electric wind shields.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The staff of the utility model can make corresponding adjustments according to the placement and specifications of the workpieces. After opening the first connecting valve, the hot air from the drying port enters the first air duct, and by opening the first valve at the corresponding position, the hot air is discharged through the first air port at the corresponding position, thereby realizing the downward drying work. After opening the second connecting valve and the third connecting valve, the hot air enters the second air duct through the connecting channel, and by opening the second valve at the corresponding position, the hot air is discharged through the second air port at the corresponding position, thereby realizing the upward drying work. Through the above-mentioned coordinated operations, the workpieces placed on the drying table can be dried in all directions at a fixed point, thereby increasing the drying effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the local structure of the connecting channel of the utility model;

[0015] Figure numerals: 1. drying furnace body; 2. first air duct; 3. first valve; 4. first air outlet; 5. drying table; 6. connecting duct; 7. second air duct; 8. second valve; 9. second air outlet; 10. drying outlet; 11. first connecting valve; 12. second connecting valve. DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0017] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0018] Example 1

[0019] like Figure 1-3 As shown, a direct-fired drying furnace comprises a drying furnace body 1 and a drying table 5, the drying table 5 is provided inside the drying furnace body 1, a drying port 10 is provided at one end of the top of the drying furnace body 1, first air ducts 2 are provided on both sides of the drying port 10, a first air port 4 is provided on the inner side of the first air duct 2, a first valve 3 is provided between the inner side of the first air port 4 and the first air duct 2, a second air duct 7 is provided at the bottom of the drying port 10 through a connecting channel 6, a second air port 9 is provided on the inner side of the second air duct 7, a second valve 8 is provided between the inner side of the second air port 9 and the second air duct 7, a first connecting valve 11 is provided between the inner side of the first air duct 2 and the drying port 10, and a second connecting valve 12 is provided between the top of the connecting channel 6 and the drying port 10.

[0020] Description of working principle: After the fuel is burned by the burner, the high temperature formed by contacting with the wind formed by the fan forms hot air which is introduced into the drying furnace body 1 through the drying port 10. The staff can make corresponding adjustments according to the placement and specifications of the workpieces. After opening the first connecting valve 11, the hot air from the drying port 10 enters the first air duct 2. By opening the first valve 3 at the corresponding position, the hot air is exported through the first air port 4 at the corresponding position, thereby realizing the downward drying work. After opening the second connecting valve 12 and the third connecting valve, the hot air enters the second air duct 7 through the connecting channel 6. By opening the second valve 8 at the corresponding position, the hot air is exported through the second air port 9 at the corresponding position, thereby realizing the upward drying work. Through the above-mentioned coordinated operations, the workpieces placed on the drying table 5 can be dried in all directions at a fixed point, thereby increasing the drying effect of the device.

[0021] The drying furnace body 1 is mainly a direct-fired drying furnace body, and when selecting, a conventional selection can be made in the prior art according to the needs.

[0022] The first air duct 2 is mainly used for downward drying. When selected, a first connecting valve 11 is provided between the inner side of the first air duct 2 and the drying port 10 .

[0023] The first valve 3 is mainly used to control the opening and closing state of the first air outlet 4. When selecting, a conventional valve can be selected in the prior art according to the needs.

[0024] The first air outlet 4 is mainly used for downward drying. When selected, electric wind shields are provided at the air outlets of the first air outlet 4 and the second air outlet 9.

[0025] The drying table 5 is mainly used for placing workpieces for drying. When selecting, a conventional selection can be made in the prior art according to the needs.

[0026] The connecting passage 6 is mainly used to guide the hot air into the second air passage 7 . When selected, a second connecting valve 12 is provided between the top of the connecting passage 6 and the drying port 10 .

[0027] The second air duct 7 is mainly used for upward drying. When selected, third connecting valves are provided between both sides of the connecting channel 6 and the second air duct 7 .

[0028] The second valve 8 is mainly used to control the opening and closing state of the second air outlet 9. When selecting, a conventional valve can be selected in the prior art according to the needs.

[0029] The second air outlet 9 is mainly used for upward drying. When selected, electric wind shields are provided at the air outlets of the first air outlet 4 and the second air outlet 9.

[0030] The drying port 10 is mainly used to introduce the hot air formed by the burner and the fan into the drying furnace body 1. When selecting, a conventional one can be selected from the existing technology according to the needs.

[0031] The first connecting valve 11 is mainly used to control the opening or closing state of the drying port 10 and the first air duct 2. When selecting, a conventional one can be selected in the prior art according to the needs.

[0032] The second connecting valve 12 is mainly used to control the opening or closing state of the drying port 10 and the connecting passage 6. When selecting, a conventional one can be selected in the prior art according to the needs.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A direct-fired drying furnace, comprising a drying furnace body (1) and a drying table (5), characterized in that: A drying platform (5) is provided inside the drying furnace body (1); a drying port (10) is provided at one end of the top of the drying furnace body (1); first air ducts (2) are provided on both sides of the drying port (10); a first air port (4) is provided inside the first air duct (2); a second air duct (7) is provided at the bottom of the drying port (10) via a connecting channel (6); a second air port (9) is provided inside the second air duct (7).

2. A direct-fired drying furnace according to claim 1, characterized in that: A first connecting valve (11) is provided between the inner side of the first air duct (2) and the drying port (10), and a second connecting valve (12) is provided between the top of the connecting channel (6) and the drying port (10).

3. A direct-fired drying furnace according to claim 1, characterized in that: A first valve (3) is provided between the inner side of the first air port (4) and the first air duct (2).

4. A direct-fired drying furnace according to claim 1, characterized in that: A second valve (8) is provided between the inner side of the second air port (9) and the second air duct (7).

5. A direct-fired drying furnace according to claim 1, characterized in that: A third connecting valve is provided between both sides of the connecting channel (6) and the second air channel (7).

6. A direct-fired drying furnace according to claim 1, characterized in that: Electric wind shields are provided at the air outlets of the first air outlet (4) and the second air outlet (9).

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