Air filtering structure of heating furnace

Abstract

The air filtering structure comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a heating furnace body, the outer side of the heating furnace body is fixedly connected with an air inlet pipe, one end of the air inlet pipe is fixedly connected with a first barrel, and the top of the first barrel is fixedly connected with a motor. The output end of the motor extends into the first barrel to be fixedly connected with the scraper, the bottom face of the scraper is fixedly connected with the brush plate, the interior of the first barrel is fixedly connected with the first filter barrel, the bottom of the motor is fixedly connected with the connecting pipe, the other end of the connecting pipe is fixedly connected with the second barrel, and the interior of the second barrel is fixedly connected with the second filter barrel. Through the first barrel, the motor, the scraper, the brush plate and the first filter barrel, the situation that dust and stains block the first filter barrel is avoided, the waste gas filtering effect is enhanced, through the second barrel, the heat exchange pipe, the pump body, the partition plate, the heat conduction pipe and the water storage cavity, the problem that the heating efficiency is affected after air with the low temperature enters is solved, and the heat utilization rate of waste gas of the heating furnace is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of heating furnaces, in particular to an air filtering structure of a heating furnace. Background Art

[0002] Heating furnace is a device that heats materials or workpieces to the rolling and forging temperature. Heating furnaces are used in many industries such as petroleum, chemical industry, metallurgy, heat treatment, building materials, electronics, materials, light industry, daily chemicals, and pharmaceuticals. With the introduction of the concept of green environmental protection development, existing heating furnaces are mostly used in conjunction with air filtration devices to purify the flue gas generated by the use of heating furnaces and reduce air pollution.

[0003] When the existing heating furnace is in use, the exhaust gas contains a large amount of dust and organic matter. These stains will adhere to the inner wall of the filter structure and even clog the filter mesh, reducing the filtering effect of the filter structure and affecting actual use. In addition, when the heating furnace is in use, air needs to be blown in for oxygenation to ensure sufficient combustion of the fuel. The temperature of the blown air is low and needs to be heated, while the heat in the exhaust gas is not fully utilized, resulting in heat waste. Utility Model Content

[0004] The utility model aims to provide an air filtering structure for a heating furnace to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air filtration structure of a heating furnace, comprising a bottom plate, the upper surface of the bottom plate is fixedly connected to the heating furnace body, the outer side of the heating furnace body is fixedly connected to the air inlet pipe, one end of the air inlet pipe is fixedly connected to a cylinder, the top of the cylinder is fixedly connected to a motor, the output end of the motor extends to the inside of the cylinder and is fixedly connected to a scraper, the bottom surface of the scraper is fixedly connected to a brush plate, the inside of the cylinder is fixedly connected to a filter cartridge, the bottom of the motor is connected to a connecting pipe The connecting tube is fixedly connected, the other end of the connecting tube is fixedly connected to the second cylinder, the interior of the second cylinder is fixedly connected to the second filter cylinder, a heat exchange tube is arranged inside the second cylinder, one end of the heat exchange tube is fixedly connected to the oxygen pipe, one end of the oxygen pipe is fixedly connected to the pump body, the interior of the second cylinder is fixedly connected to the partition, the partition is fixedly connected to one end of the heat conduction tube, a water storage cavity is arranged inside the second cylinder, the outer side of the second cylinder is fixedly connected to the water outlet pipe, the outer side of the second cylinder is fixedly connected to the water inlet pipe, and the second cylinder is fixedly connected to the air outlet pipe.

[0006] Preferably, an inner wall of the cylinder body abuts against a scraper, the scraper is a U-shaped plate, the bottom surface of the scraper is fixedly connected to two symmetrical brush plates, and the brush plates abut against an outer side of the filter cylinder.

[0007] Preferably, a filter net is arranged on the side of the filter cartridge one, and the filter cartridge one and the filter cartridge two are respectively located at two ends of the connecting pipe.

[0008] Preferably, the heat exchange tubes are located inside the second cylinder, and the heat exchange tubes are distributed in a spiral shape.

[0009] Preferably, there are two partitions, a plurality of circular through holes are provided on the side of the partition, the heat conduction pipe is connected with the circular through holes, the partition is fixedly connected with the two ends of the heat conduction pipe respectively, the water storage cavity is located between the two partitions, and the water outlet pipe and the water inlet pipe are respectively connected with the inside of the water storage cavity.

[0010] Preferably, the air outlet pipe is located below the partition.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model provides a cylinder body, a motor, a scraper, a brush plate and a filter cylinder body. The motor drives the scraper and the brush plate to rotate, the scraper is used to scrape off the stains attached to the inner wall of the cylinder body, and the rotation of the brush plate is used to clean the outside of the filter cylinder body, so as to avoid the situation where dust and stains clog the filter cylinder body, ensure the filtering effect of the filtering structure, and use the filter cylinder body to further enhance the filtering effect of the exhaust gas and reduce the pollution to the air.

[0013] The utility model also preheats the air by arranging a second cylinder body, a heat exchange tube, a pump body, a partition, a heat conduction tube and a water storage chamber. The heat exchange tube exchanges heat with the exhaust gas to increase the temperature of the incoming air, thereby solving the problem that the heating efficiency is affected by the low air temperature. The heat conduction tube further exchanges heat with the water in the water storage chamber, thereby effectively enhancing the heat utilization rate of the exhaust gas from the heating furnace and reducing the waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a cross-sectional view of the internal structure of the cylinder of the utility model;

[0016] Figure 3 It is a cross-sectional view of the internal structure of the second cylinder of the utility model;

[0017] Figure 4 It is a cross-sectional view of the internal structure of the second cylinder of the utility model.

[0018] In the figure: 1. bottom plate; 2. heating furnace body; 3. air inlet pipe; 4. cylinder body 1; 5. motor; 6. scraper; 7. brush plate; 8. filter cartridge 1; 9. connecting pipe; 10. cylinder body 2; 11. filter cartridge 2; 12. heat exchange tube; 13. oxygen pipe; 14. pump body; 15. partition; 16. heat conduction tube; 17. water storage chamber; 18. water outlet pipe; 19. water inlet pipe; 20. air outlet pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model provides a technical solution: an air filtering structure of a heating furnace, comprising a bottom plate 1, the upper surface of the bottom plate 1 is welded and fixed to the heating furnace body 2, the outer side of the heating furnace body 2 is welded and fixed to the air inlet pipe 3, the air inlet pipe 3 is located in the upper half of the heating furnace body 2, the other end of the air inlet pipe 3 is located in the upper half of the cylinder body 4, one end of the air inlet pipe 3 is welded and fixed to the cylinder body 4, the top of the cylinder body 4 is fixedly connected to the motor 5 by bolts, the output end of the motor 5 extends to the inside of the cylinder body 4 and is welded and fixed to the scraper 6, the bottom surface of the scraper 6 is welded and fixed to the brush plate 7, the scraper 6 is a U-shaped plate, the upper side of the brush plate 7 is cleaned by a brush, a discharge pipe is arranged at the bottom of the cylinder body 4, the bottom of the discharge pipe is threadedly connected to the sealing cover, the dust scraped off the inside of the cylinder body 4 can be cleaned by removing the sealing cover, the inside of the cylinder body 4 is welded and fixed to the filter cylinder 8, the electric The bottom of the machine 5 is welded and fixed to the connecting pipe 9, the other end of the connecting pipe 9 is welded and fixed to the cylinder body 10, the bottom of the cylinder body 10 is welded and fixed to the upper surface of the bottom plate 1, the inside of the cylinder body 10 is welded and fixed to the filter cylinder 11, the top of the filter cylinder 18 is sealed, the bottom of the filter cylinder 11 is sealed, and the sides of the filter cylinder 18 and the filter cylinder 11 are both provided with filter screens, the inside of the cylinder body 10 is provided with a heat exchange tube 12, one end of the heat exchange tube 12 is welded and fixed to the oxygen pipe 13, one end of the oxygen pipe 13 is welded and fixed to the pump body 14, the inside of the cylinder body 10 is welded and fixed to the outside of the two partitions 15, the partition 15 is welded and fixed to one end of the heat conduction pipe 16, the inside of the cylinder body 10 is provided with a water storage chamber 17, the outside of the cylinder body 10 is welded and fixed to the water outlet pipe 18, the outside of the cylinder body 10 is welded and fixed to the water inlet pipe 19, and the cylinder body 10 is welded and fixed to the air outlet pipe 20.

[0021] The inner wall of the cylinder body 4 is in contact with the scraper 6, and the scraper 6 is a U-shaped plate. The bottom surface of the scraper 6 is welded and fixed with two symmetrical brush plates 7. The brush plates 7 are in contact with the outer side of the filter cylinder 8. A filter screen is arranged on the side of the filter cylinder 8. The filter cylinder 18 and the filter cylinder 2 11 are respectively located at the two ends of the connecting pipe 9. The exhaust gas is double-filtered by the filter cylinder 18 and the filter cylinder 2 11, which effectively enhances the filtering effect of the exhaust gas. At the same time, the motor 5 is used to rotate the scraper 6 and the brush plate 7, and the smoke and dust adsorbed on the inner wall of the cylinder body 4 is cleaned by the scraper 6, and the dust adsorbed on the filter cylinder 8 is cleaned by the brush plate 7 to ensure the filtering effect of the cylinder body 4. Then, the scraped dust can be discharged through the discharge pipe at the bottom of the cylinder body 4, and the center and edge difference of the square filter screen is effectively avoided by the filter cylinder 8 and the connecting pipe 9. In the case of alienation, the heat exchange tube 12 is located inside the cylinder 10, and the heat exchange tube 12 is distributed in a spiral shape. There are two partitions 15, and a plurality of circular through holes are opened on the side of the partition 15. The heat conduction tube 16 is connected with the circular through holes. The partition 15 is welded and fixed to both ends of the heat conduction tube 16 respectively. The water storage chamber 17 is located between the two partitions 15, and the water outlet pipe 18 and the water inlet pipe 19 are respectively connected with the inside of the water storage chamber 17. The air outlet pipe 20 is located below the partition 15. The spiral distribution of the heat exchange tube 12 enhances the heating effect of the air in the heat exchange tube 12 to avoid the situation where the heating efficiency is affected by the cold air blowing in. Then, the exhaust gas passes through the heat conduction tube 16 and is discharged from the air outlet pipe 20. The exhaust gas will exchange heat with the water in the water storage chamber 17 in the heat conduction tube 16 to improve the utilization rate of the heat in the exhaust gas.

[0022] Working principle: The exhaust gas generated by the heating furnace body 2 when in use enters the cylinder body 4 from the air inlet pipe 3, and the exhaust gas enters the filter cylinder 11 from the connecting pipe 9 after being filtered by the filter cylinder 18. After secondary filtration by the filter cylinder 11, it exchanges heat with the heat exchange tube 12 to heat the air in the heat exchange tube 12. The two filtrations of the filter cylinder 18 and the filter cylinder 11 effectively reduce the dust and organic matter in the exhaust gas and reduce the pollution to the air. The scraper 6 and the brush plate 7 are rotated by the motor 5, and the smoke adsorbed on the inner wall of the cylinder body 4 is removed by the scraper 6. Dust cleaning: The dust adsorbed on the filter cartridge 8 is cleaned by the brush plate 7 to ensure the filtering effect of the cartridge 4. The heating effect of the air in the heat exchange tube 12 is enhanced by the spiral distribution of the heat exchange tube 12. Then the pump body 14 blows the heated air into the heating furnace body 2 to avoid the situation where the heating efficiency is affected by the blowing of cold air, thereby improving the heating efficiency of the heating furnace body 2. Then the exhaust gas passes through the heat conduction tube 16 and is discharged from the exhaust pipe 20. The exhaust gas will exchange heat with the water in the water storage chamber 17 in the heat conduction tube 16 to realize the recovery and utilization of heat in the exhaust gas.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air filtration structure for a heating furnace, comprising a bottom plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected to the heating furnace body (2); the outer side of the heating furnace body (2) is fixedly connected to the air inlet pipe (3); one end of the air inlet pipe (3) is fixedly connected to the cylinder body (4); the top of the cylinder body (4) is fixedly connected to the motor (5); the output end of the motor (5) extends to the inside of the cylinder body (4) and is fixedly connected to the scraper (6); the bottom surface of the scraper (6) is fixedly connected to the brush plate (7); the inside of the cylinder body (4) is fixedly connected to the filter cylinder (8); the bottom of the motor (5) is fixedly connected to the connecting pipe (9); the other end of the connecting pipe (9) is fixedly connected to the cylinder body (10); the cylinder body (10) The interior of the second cylinder (10) is fixedly connected to the second filter cylinder (11); a heat exchange tube (12) is arranged inside the second cylinder (10); one end of the heat exchange tube (12) is fixedly connected to the oxygen pipe (13); one end of the oxygen pipe (13) is fixedly connected to the pump body (14); the interior of the second cylinder (10) is fixedly connected to the partition (15); the partition (15) is fixedly connected to one end of the heat conduction tube (16); a water storage chamber (17) is arranged inside the second cylinder (10); the outer side of the second cylinder (10) is fixedly connected to the water outlet pipe (18); the outer side of the second cylinder (10) is fixedly connected to the water inlet pipe (19); and the second cylinder (10) is fixedly connected to the air outlet pipe (20).

2. The air filtering structure of a heating furnace according to claim 1, characterized in that: The inner wall of the cylinder body 1 (4) abuts against a scraper (6), the scraper (6) is a U-shaped plate, the bottom surface of the scraper (6) is fixedly connected to two symmetrical brush plates (7), and the brush plates (7) abut against the outer side of the filter cylinder 1 (8).

3. The air filtering structure of a heating furnace according to claim 1, characterized in that: A filter screen is arranged on the side of the filter cartridge one (8), and the filter cartridge one (8) and the filter cartridge two (11) are respectively located at two ends of the connecting pipe (9).

4. The air filtering structure of a heating furnace according to claim 1, characterized in that: The heat exchange tubes (12) are located inside the second cylinder (10), and the heat exchange tubes (12) are distributed in a spiral shape.

5. The air filtering structure of a heating furnace according to claim 1, characterized in that: The number of the partitions (15) is two, a plurality of circular through holes are provided on the side of the partition (15), the heat conducting pipe (16) is connected to the circular through holes, the partition (15) is fixedly connected to the two ends of the heat conducting pipe (16), the water storage chamber (17) is located between the two partitions (15), and the water outlet pipe (18) and the water inlet pipe (19) are respectively connected to the inside of the water storage chamber (17).

6. The air filtering structure of a heating furnace according to claim 1, characterized in that: The air outlet pipe (20) is located below the partition plate (15).

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