Mine wellhead electric heating type hot blast stove

Abstract

The utility model relates to the technical field of hot blast stoves, and discloses a mine wellhead electric heating type hot blast stove which comprises two supporting box bodies, a ventilating duct is arranged at the center position between the two sides of each supporting box body in a penetrating mode, and the two supporting box bodies are arranged in a spaced mode. A heating pipe is fixedly installed on the outer side of the circumference of the ventilating duct between the two supporting box bodies, and a heating device used for heating is arranged in the heating pipe. According to the utility model, the heat dissipation assembly is matched with the electrode heating pipe, and the electrode heating pipe transmits heat to the heat dissipation assembly, so that the contact area of air heating is increased, the hot air heating efficiency is favorably improved, the heat of the electrode heating pipe is more fully utilized, the energy utilization rate is improved, and the energy loss is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot blast stoves, and in particular relates to an electrically heated hot blast stove at a mine wellhead. Background Art

[0002] After my search, the prior art discloses a mine explosion-proof electric hot air furnace (application number 202022451800.9), which includes a box body, one side of the box body is fixedly connected to an air outlet duct, the top of the box body is fixedly connected to an air inlet duct, the surface of the air inlet duct is rotatably connected to a maintenance door through a hinge, the inner wall of the box body is fixedly connected to a No. 1 fan, the inner wall of the box body is provided with an electrode heating tube, and the inner wall of the air outlet duct is fixedly connected to a support plate.

[0003] The electric hot air furnace disclosed in the above-cited document heats cold air by means of heating tubes, but it is only provided with a plurality of heating tubes, and no heat dissipation device is provided for improving the heating effect of the heating tubes. As a result, not only the contact area between the air and the heating device is limited, which may easily lead to insufficient heating of the hot air, but also the energy utilization rate of the heating tubes may be low, resulting in energy waste.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] A mine wellhead electrically heated hot blast furnace, comprising two supporting boxes, a ventilation duct is provided through the center position between the two sides of the supporting boxes, the two supporting boxes are arranged at intervals, and a heating pipe is fixedly installed between the two supporting boxes on the outer side of the ventilation duct, and a heating device for heating is provided in the heating pipe;

[0007] The heating device includes an electrode heating tube for generating heat, a central column is arranged at the center position of the inner side of the heating tube circle, a heat dissipation component is arranged on the outer side of the central column circle, and a heat dissipation component for improving the heating efficiency of the electrode heating tube is also arranged between the outer side of the central column circle and the inner wall of the heating tube circle.

[0008] As a preferred embodiment of the utility model, an air inlet fan and an air outlet fan are respectively arranged on the inner sides of the ventilation ducts on the two supporting boxes, the air inlet fan blows toward the side close to the heating tube, and the air outlet fan blows toward the side away from the heating tube, and the supporting box body on which the air inlet fan is installed is provided with an air inlet duct on the side away from the heating tube, and the supporting box body on which the air outlet fan is installed is provided with an air outlet duct on the side away from the heating tube.

[0009] As a preferred embodiment of the utility model, the heat dissipation assembly includes a plurality of heat dissipation plates, which are evenly distributed in a circular array and fixedly installed between the inner wall of the heating tube and the outer side of the central column. The electrode heating tubes are evenly distributed in a circular array and arranged on the outer side of the central column, and the electrode heating tubes pass through each heat dissipation plate and are fixedly installed.

[0010] As a preferred embodiment of the utility model, the heat dissipation assembly includes a plurality of heat dissipation plates 2, which are evenly distributed in a circular array and fixedly installed between the inner wall of the heating tube and the outer side of the central column. The electrode heating tubes are evenly distributed in a circular array and arranged on the outer side of the central column, and the electrode heating tubes pass through each heat dissipation plate 2 and are fixedly installed.

[0011] As a preferred embodiment of the present utility model, the cross-sections of the heat dissipation plate are in the shape of wavy broken lines.

[0012] As a preferred embodiment of the utility model, the heat dissipation assembly includes a plurality of heat dissipation plates three, which are evenly distributed in a circular array and fixedly installed between the inner wall of the heating tube and the outer side of the central column. The electrode heating tube is evenly distributed in a circular array and arranged on the outer side of the central column, and the electrode heating tube passes through each heat dissipation plate three and is fixedly installed.

[0013] As a preferred embodiment of the present invention, the heat dissipation plate three is in the shape of a spirally curved plate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] When the device is in use, the air inlet fan and the air outlet fan are turned on, so that the cold air enters the heating tube from the air inlet pipe for heating and is then discharged from the air outlet pipe to the mine entrance. Through the provided heat dissipation component, it cooperates with the electrode heating tube, and the electrode heating tube transfers heat to the heat dissipation component, thereby increasing the contact area of ​​air heating, which is beneficial to improving the hot air heating efficiency, making the heat utilization of the electrode heating tube more sufficient, improving energy utilization, and reducing energy loss; the heat dissipation plate 2 with a wavy zigzag cross-section makes the air duct formed between the two adjacent heat dissipation plates 2 in a zigzag shape, which is beneficial to increasing the contact area, improving energy utilization, and increasing the air duct travel of the air in the heating tube, further improving the heating efficiency of the device; the spirally curved heat dissipation plate 3 also has the function of increasing the contact area and the air duct travel, and at the same time makes the air delivered in a spiral shape, making the air flow delivery smoother and more stable, which is beneficial to improving the uniformity of hot air heating.

[0016] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the heat dissipation assembly in the first embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the heat dissipation assembly in the second embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the heat dissipation component in the third embodiment of the present utility model.

[0023] In the figure: 10, supporting box; 11, air inlet pipe; 12, air outlet pipe; 13, air inlet fan; 14, air outlet fan; 20, heating tube; 21, center column; 22, heat dissipation assembly; 221, heat dissipation plate 1; 222, heat dissipation plate 2; 223, heat dissipation plate 3; 23, electrode heating tube. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0025] Embodiment 1: A mine wellhead electrically heated hot blast furnace, such as Figure 1-2 As shown, it includes two supporting boxes 10, a ventilation duct is provided at the center position between the two sides of the supporting boxes 10, the two supporting boxes 10 are arranged at intervals, and a heating pipe 20 is fixedly installed outside the circumference of the ventilation duct between the two supporting boxes 10, and a heating device for heating is provided in the heating pipe 20;

[0026] like Figure 2 As shown, the heating device includes an electrode heating tube 23 for generating heat, a center column 21 is arranged at the center position of the inner side of the circumference of the heating tube 20, a heat dissipation component 22 is arranged on the outer side of the circumference of the center column 21, and a heat dissipation component 22 for improving the heating efficiency of the electrode heating tube 23 is also arranged between the outer side of the circumference of the center column 21 and the inner wall of the circumference of the heating tube 20.

[0027] like Figure 2As shown, an air inlet fan 13 and an air outlet fan 14 are respectively arranged on the inner side of the ventilation ducts on the two supporting boxes 10, the air inlet fan 13 blows toward the side close to the heating tube 20, and the air outlet fan 14 blows toward the side away from the heating tube 20, and the side of the supporting box 10 equipped with the air inlet fan 13 away from the heating tube 20 is provided with an air inlet duct 11, and the side of the supporting box 10 equipped with the air outlet fan 14 away from the heating tube 20 is provided with an air outlet duct 12.

[0028] like Figure 3 As shown, the heat dissipation assembly 22 includes a plurality of heat dissipation plates 221, which are evenly spaced apart in a circular array and fixedly installed between the inner circumferential wall of the heating tube 20 and the outer circumferential wall of the center column 21. The electrode heating tubes 23 are evenly spaced apart in a circular array and are arranged on the outer circumferential wall of the center column 21, and the electrode heating tubes 23 pass through each heat dissipation plate 221 and are fixedly installed.

[0029] Working principle: When the device is in use, the air inlet fan 13 and the air outlet fan 14 are turned on, so that the cold air enters the heating tube 20 from the air inlet pipe 11 for heating and then is discharged from the air outlet pipe 12 to the mine entrance. The heat dissipation component 22 is provided, which cooperates with the electrode heating tube 23. The electrode heating tube 23 transfers heat to the heat dissipation component 22, thereby increasing the contact area of ​​air heating, which is beneficial to improving the hot air heating efficiency, making the heat of the electrode heating tube 23 more fully utilized, improving energy utilization, and reducing energy loss.

[0030] Embodiment 2: Figure 4 As shown, the heat dissipation assembly 22 includes a plurality of heat dissipation plates 222, which are evenly spaced apart in a circular array and fixedly installed between the inner circumferential wall of the heating tube 20 and the outer circumferential wall of the center column 21. The electrode heating tubes 23 are evenly spaced apart in a circular array and are arranged on the outer circumferential wall of the center column 21, and the electrode heating tubes 23 pass through each heat dissipation plate 222 and are fixedly installed.

[0031] like Figure 4 As shown, the cross section of the heat dissipation plate 222 is in a wavy broken line shape.

[0032] Working principle: The heat sink 222 with a wavy zigzag cross-section makes the air duct formed between two adjacent heat sinks 222 zigzag, which is beneficial to increase the contact area, improve energy utilization, increase the air duct travel in the heating tube 20, and further improve the heating efficiency of the device.

[0033] Embodiment 3: Figure 5As shown, the heat dissipation assembly 22 includes a plurality of heat dissipation plates 223, which are evenly spaced apart in a circular array and fixedly installed between the inner circumferential wall of the heating tube 20 and the outer circumferential wall of the center column 21. The electrode heating tubes 23 are evenly spaced apart in a circular array and are arranged on the outer circumferential wall of the center column 21, and the electrode heating tubes 23 pass through each heat dissipation plate 223 and are fixedly installed.

[0034] like Figure 5 As shown, the heat sink three 223 is in the shape of a spirally curved plate.

[0035] Working principle: The spirally curved heat sink 223 also has the function of increasing the contact area and the air duct travel, while making the air delivered in a spiral shape, making the air flow delivery smoother and more stable, which is beneficial to improving the uniformity of hot air heating.

[0036] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A mine wellhead electrically heated hot blast furnace, comprising two supporting boxes (10), characterized in that: A ventilation duct is provided through the center position between the two sides of the support box (10), the two support boxes (10) are arranged at an interval, and a heating pipe (20) is fixedly installed between the two support boxes (10) on the outer side of the circumference of the ventilation duct, and a heating device for heating is provided in the heating pipe (20); The heating device comprises an electrode heating tube (23) for generating heat, wherein a central column (21) is arranged at the central position of the inner side of the circumference of the heating tube (20), a heat dissipation component (22) is arranged on the outer side of the circumference of the central column (21), and a heat dissipation component (22) for improving the heating efficiency of the electrode heating tube (23) is also arranged between the outer side of the circumference of the central column (21) and the inner wall of the circumference of the heating tube (20).

2. The mine wellhead electrically heated hot blast furnace according to claim 1, characterized in that: An air inlet fan (13) and an air outlet fan (14) are respectively arranged on the inner side of the ventilation duct on the two supporting boxes (10); the air inlet fan (13) blows toward a side close to the heating tube (20), and the air outlet fan (14) blows toward a side away from the heating tube (20); and an air inlet duct (11) is arranged on the side of the supporting box (10) on which the air inlet fan (13) is installed away from the heating tube (20), and an air outlet duct (12) is arranged on the side of the supporting box (10) on which the air outlet fan (14) is installed away from the heating tube (20).

3. The mine wellhead electrically heated hot blast furnace according to claim 1, characterized in that: The heat dissipation assembly (22) comprises a plurality of heat dissipation plates (221), the heat dissipation plates (221) being evenly spaced and fixedly installed in a circular array between the inner circumferential wall of the heating tube (20) and the outer circumferential wall of the central column (21), the electrode heating tube (23) being evenly spaced and distributed in a circular array on the outer circumferential wall of the central column (21), and the electrode heating tube (23) passing through each heat dissipation plate (221) and being fixedly installed.

4. The mine wellhead electrically heated hot blast furnace according to claim 1, characterized in that: The heat dissipation assembly (22) comprises a plurality of heat dissipation plates (222), which are evenly spaced and fixedly installed in a circular array between the inner circumferential wall of the heating tube (20) and the outer circumferential wall of the central column (21). The electrode heating tube (23) is evenly spaced and arranged on the outer circumferential wall of the central column (21) in a circular array, and the electrode heating tube (23) passes through each heat dissipation plate (222) and is fixedly installed.

5. The mine wellhead electrically heated hot blast furnace according to claim 4, characterized in that: The cross section of the second heat dissipation plate (222) is in a wavy broken line shape.

6. The mine wellhead electrically heated hot blast furnace according to claim 1, characterized in that: The heat dissipation assembly (22) comprises a plurality of heat dissipation plates (223) which are evenly spaced and fixedly installed in a circular array between the inner circumferential wall of the heating tube (20) and the outer circumferential wall of the central column (21). The electrode heating tube (23) is evenly spaced and distributed in a circular array on the outer circumferential wall of the central column (21), and the electrode heating tube (23) passes through each heat dissipation plate (223) and is fixedly installed.

7. The mine wellhead electrically heated hot blast furnace according to claim 6, characterized in that: The heat dissipation plate three (223) is in the shape of a spirally curved plate.

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