Novel hot air rotary furnace of direct-combustion type combustion fire tube

Abstract

The utility model relates to the technical field of hot air rotary furnaces, in particular to a novel hot air rotary furnace of a direct combustion type combustion fire tube, which comprises circulating wind wheels and a furnace body, a direct combustion type gas heat exchanger is arranged in the furnace body, and two circulating wind wheels are arranged on one side of the direct combustion type gas heat exchanger. Two circulating fans are arranged on the side, away from the circulating wind wheel, of the direct-fired gas heat exchanger, and a combustion fire tube is arranged on one side of the direct-fired gas heat exchanger. A combustion fire tube fan, an air inlet duct, an inner chamber rear air plate and an air return duct are arranged in the circulating wind wheel; according to the utility model, the combustion fire tube is used for replacing a fuel gas combustion machine, and the direct combustion type fuel gas heat exchanger, the circulating fan, the combustion fire tube fan, the air inlet duct, the inner chamber rear air plate and the air return duct are arranged, so that the efficiency is improved, the cost is saved, and the space is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot air rotary furnaces, in particular to a novel hot air rotary furnace with a direct-fired combustion fire tube. Background Art

[0002] The heating sources of hot air rotary furnaces are generally electric, diesel and gas. There are also hybrid oil-electric and coal-fired types. According to the size of production, there are 12-tray, 16-tray, 22-tray, 32-tray and 64-tray types. According to the trolley model, there are platform type, hook type, single trolley and double trolley. According to the control method, there are traditional instrument control, intelligent PLC touch screen control, dual-mode control, etc. Hot air rotary furnaces are widely used in the food baking industry. Existing hot air rotary furnaces use electric heating tubes or diesel (gas) burners for heating, which require heat exchangers and burners, resulting in high manufacturing costs and large space. Therefore, a new type of hot air rotary furnace with direct-fired combustion fire tubes is proposed to save cost and volume. Utility Model Content

[0003] In view of the problems in the prior art, the utility model provides a novel hot air rotary furnace with a direct-fired combustion fire tube.

[0004] The technical solution adopted by the utility model to solve the technical problem is a new type of hot air rotary furnace with direct-fired combustion fire tubes, comprising a circulating wind wheel and a furnace body, wherein a direct-fired gas heat exchanger is provided in the furnace body, and two circulating wind wheels are provided on one side of the direct-fired gas heat exchanger;

[0005] Two circulating fans are provided on the side of the direct-fired gas heat exchanger away from the circulating wind wheel, and a combustion fire tube is provided on one side of the direct-fired gas heat exchanger;

[0006] The circulating wind wheel is provided with a combustion fire tube fan, an air inlet duct, an inner chamber rear wind plate and a return air duct.

[0007] Specifically, the two circulation fans are fixed to the furnace body by bolts, and the heights of the two circulation fans and the two circulation wind wheels are the same.

[0008] Specifically, the air inlet duct is located between the rear wind plate of the inner chamber and the circulating wind wheel.

[0009] Specifically, the inner chamber rear air plate is detachably connected to the furnace body, and the direct-fired gas heat exchanger is detachably connected to the furnace body.

[0010] Specifically, a protective door is provided on a side of the furnace body away from the circulating fan, and the protective door is connected to the furnace body through a hinge.

[0011] Beneficial effects of the utility model:

[0012] The new hot air rotary furnace with direct-fired combustion fire tubes described in the utility model uses combustion fire tubes instead of gas burners. By arranging a direct-fired gas heat exchanger, a circulating fan, a combustion fire tube fan, an air inlet duct, an inner chamber rear air plate and a return air duct, it not only improves efficiency and saves costs but also saves space. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is the main view of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model along the BB direction;

[0016] Figure 3 It is a cross-sectional view of the present invention along the CC direction.

[0017] In the figure: 1. Circulating wind wheel; 10. Furnace body; 2. Direct-fired gas heat exchanger; 3. Circulating fan; 4. Combustion fire tube; 5. Combustion fire tube fan; 6. Air inlet duct; 7. Inner chamber rear air plate; 8. Return air duct. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] In order to save cost and space, as an embodiment of the present invention, Figure 1 、 Figure 2 、 Figure 3 As shown, the new hot air rotary furnace with direct-fired combustion fire tubes described in the present invention comprises: 1. a circulating wind wheel 1 and a furnace body 10, wherein a direct-fired gas heat exchanger 2 is provided in the furnace body 10, and two circulating wind wheels 1 are provided on one side of the direct-fired gas heat exchanger 2;

[0020] Two circulating fans 3 are provided on the side of the direct-fired gas heat exchanger 2 away from the circulating wind wheel 1, and a combustion fire tube 4 is provided on one side of the direct-fired gas heat exchanger 2;

[0021] The circulating wind wheel 1 is provided with a combustion fire tube fan 5, an air inlet duct 6, an inner chamber rear air plate 7 and a return air duct 8.

[0022] When in use, a combustion fire tube 4 is used instead of a gas burner. By setting a direct-fired gas heat exchanger 2, a circulating fan 3, a combustion fire tube fan 5, an air inlet duct 6, an inner chamber rear air plate 7 and a return air duct 8, not only the efficiency is improved, the cost is saved, but also the space is saved.

[0023] The two circulation fans 3 are both fixed to the furnace body 10 by bolts, and the two circulation fans 3 are at the same height as the two circulation wind wheels 1 .

[0024] The air inlet duct 6 is located between the rear wind plate 7 of the inner chamber and the circulating wind wheel 1.

[0025] The inner chamber rear air plate 7 is detachably connected to the furnace body 10 , and the direct-fired gas heat exchanger 2 is detachably connected to the furnace body 10 .

[0026] A protective door is provided on the side of the furnace body 10 away from the circulating fan 3 , and the protective door is connected to the furnace body 10 via a hinge.

[0027] When in use, the utility model uses a combustion fire tube 4 instead of a gas burner, and by arranging a direct-fired gas heat exchanger 2, a circulating fan 3, a combustion fire tube fan 5, an air inlet duct 6, an inner chamber rear air plate 7 and a return air duct 8, not only the efficiency is improved, the cost is saved, but also the space is saved.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions in the specification are only for the purpose of illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, and such changes and improvements fall within the scope of protection claimed by the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents. Any matters not described in detail in the present invention belong to the prior art known to those skilled in the art.

Claims

1. A new type of hot air rotary furnace with direct-fired combustion fire tube, characterized in that: It comprises a circulating wind wheel (1) and a furnace body (10), wherein a direct-fired gas heat exchanger (2) is provided in the furnace body (10), and two circulating wind wheels (1) are provided on one side of the direct-fired gas heat exchanger (2); Two circulating fans (3) are provided on a side of the direct-fired gas heat exchanger (2) away from the circulating wind wheel (1), and a combustion fire tube (4) is provided on one side of the direct-fired gas heat exchanger (2); The circulating wind wheel (1) is provided with a combustion fire tube fan (5), an air inlet duct (6), an inner chamber rear air plate (7) and a return air duct (8).

2. The new hot air rotary furnace with direct-fired combustion fire tube according to claim 1 is characterized in that: The two circulating fans (3) are both fixed to the furnace body (10) by means of bolts, and the two circulating fans (3) are at the same height as the two circulating wind wheels (1).

3. The new hot air rotary furnace with direct-fired combustion fire tube according to claim 1 is characterized in that: The air inlet duct (6) is located between the rear wind plate (7) of the inner chamber and the circulating wind wheel (1).

4. The new hot air rotary furnace with direct-fired combustion fire tube according to claim 1 is characterized in that: The inner chamber rear air plate (7) is detachably connected to the furnace body (10), and the direct-fired gas heat exchanger (2) is detachably connected to the furnace body (10).

5. The new hot air rotary furnace with direct-fired combustion fire tube according to claim 1 is characterized in that: A protective door is provided on the side of the furnace body (10) away from the circulating fan (3), and the protective door is connected to the furnace body (10) via a hinge.

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