Heat accumulating type combustor of aluminum melting furnace

Abstract

The utility model discloses a heat accumulating type burner of an aluminum melting furnace, which relates to the technical field of burners and comprises two burner main bodies, the side surfaces of the two burner main bodies are fixedly connected with first smoke exhaust pipes, the tops of the first smoke exhaust pipes are fixedly connected with second smoke exhaust pipes, and the top ends of the first smoke exhaust pipes are in threaded connection with second sealing covers. The bottom end of the second sealing cover is fixedly connected with a connecting rod, a plurality of supporting rings are evenly arranged on the connecting rod, the interiors of the supporting rings are fixedly connected with filter plates, a plurality of installation rings are evenly installed in the first smoke exhaust pipe, and installation grooves are formed in the tops of the installation rings. The top end of the first smoke exhaust pipe is open, the opening of the first smoke exhaust pipe is sealed through the second sealing cover, when the filter plate needs to be cleaned, the second sealing cover is opened, the supporting ring and the filter plate are pulled out of the first smoke exhaust pipe through the connecting rod, and then the filter plate can be cleaned, so that cleaning is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of burners, in particular to a heat storage burner for an aluminum melting furnace. Background Art

[0002] The regenerative burner heats the air at room temperature in a very short time. After the heated high-temperature air enters the furnace, it draws in the flue gas in the surrounding furnace to form a thin oxygen-poor high-temperature airflow with an oxygen content much lower than 21%. At the same time, fuel is injected near the thin high-temperature air, and the fuel is burned in an oxygen-poor (2%-20%) state. At the same time, the hot flue gas after combustion in the furnace is discharged through another regenerative burner, and the sensible heat of the high-temperature flue gas is stored in another regenerative burner. The reversing valve with a low working temperature switches at a certain frequency, and the commonly used switching cycle is 30-200 seconds. The two regenerative burners are in an alternating working state of heat storage and heat release, thereby achieving energy saving.

[0003] A Chinese patent (Announcement No.: CN203517785U) discloses a heat storage burner for an aluminum melting furnace, which includes a burner 1 and a burner 2. A heat storage body is arranged inside the burner 1 and the burner 2. The burner 1 is connected to an air inlet pipe 1 and a smoke exhaust pipe 1, and the burner 2 is connected to an air inlet pipe 2 and a smoke exhaust pipe 2. A temperature sensor is arranged inside the burner 1 and the burner 2 respectively. The temperature inside the burner 1 and the burner 2 is transmitted to the controller in real time through the temperature sensor, and the controller controls the opening or closing of the solenoid valve 1 and the solenoid valve 2; the exhaust pipe 1 is connected to the exhaust pipe 1, and the exhaust pipe 1 is connected to the exhaust pipe 2. An electromagnetic valve 1 is provided at the inlet end, and an electromagnetic valve 2 is provided at the inlet end of the smoke exhaust pipe 2. The electromagnetic valve 1 and the electromagnetic valve 2 are respectively connected to the controller. A plurality of filters with equal surface areas are respectively provided in the smoke exhaust pipe 1 and the smoke exhaust pipe 2, and the mesh size of the filters in the smoke exhaust pipe 1 and the smoke exhaust pipe 2 gradually increases along the direction of smoke flow. The smoke is filtered step by step through the filters to prevent impurities in the smoke from affecting the combustion performance of the two. However, with the use of the equipment, cigarette ash adheres to the filter and blocks the filter, which needs to be cleaned in time, but the cleaning of the filter of the equipment is more troublesome.

[0004] In order to solve the above problems, we have made improvements and proposed a regenerative burner for an aluminum melting furnace. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model provides a regenerative burner for an aluminum melting furnace, comprising two burner bodies, the sides of the two burner bodies are fixedly connected with a first smoke exhaust pipe, the top of the first smoke exhaust pipe is fixedly connected with a second smoke exhaust pipe, the ends of the two second smoke exhaust pipes away from the first smoke exhaust pipe are equipped with a smoke exhaust main pipe, the end of the second smoke exhaust pipe close to the smoke exhaust main pipe is equipped with a second solenoid valve, the top of the first smoke exhaust pipe is threadedly connected with a second sealing cover, the bottom end of the second sealing cover is fixedly connected with a connecting rod, a plurality of support rings are evenly arranged on the connecting rod, a filter plate is fixedly connected to the inside of the support ring, a plurality of mounting rings are evenly installed inside the first smoke exhaust pipe, a mounting groove is opened on the top of the mounting ring, and the support ring is arranged inside the mounting groove.

[0007] As a preferred technical solution of the utility model, a discharge port is provided at the bottom of the first smoke exhaust pipe, a discharge pipe is fixedly connected to the bottom end of the discharge port, and a first sealing cover is threadedly connected to the bottom end of the discharge pipe.

[0008] As a preferred technical solution of the utility model, a first solenoid valve is installed at the bottom of the first smoke exhaust pipe, and the first solenoid valve is arranged at one end of the first smoke exhaust pipe close to the burner body.

[0009] As a preferred technical solution of the utility model, the bottom end of the second sealing cover is fixedly connected to an insulation block, and the side of the insulation block is in contact with the inner wall of the first smoke exhaust pipe, and the top end of the second sealing cover is fixedly connected to a second bracelet.

[0010] As a preferred technical solution of the utility model, the top of the first sealing cover is fixedly connected with an insulation block, and the side of the insulation block is in contact with the inner wall of the discharge pipe, and the bottom end of the first sealing cover is fixedly connected with a first bracelet.

[0011] As a preferred technical solution of the utility model, the areas of the plurality of support rings decrease sequentially from top to bottom, and the mesh sizes of the filter holes of the plurality of filter plates decrease sequentially from top to bottom.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model concentrates the filter plates in the vertical area of ​​the first smoke exhaust pipe, and the top end of the first smoke exhaust pipe is open, and the opening of the first smoke exhaust pipe is sealed by the second sealing cover. When the filter plates need to be cleaned, the second sealing cover is opened, and the support ring and the filter plates are pulled out of the first smoke exhaust pipe by the connecting rod, and the filter plates can be cleaned, which is more convenient to clean.

[0014] 2. In the utility model, the smoke ash accumulates along the first smoke exhaust pipe at the lowest point of the first smoke exhaust pipe, that is, at the exhaust port. When the first sealing cover is opened, the smoke ash is discharged outwardly along the exhaust pipe from the exhaust port, so as to keep the interior of the first smoke exhaust pipe clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a cross-sectional view of the first smoke exhaust pipe of the utility model;

[0018] Figure 3 It is a partial enlarged view of the utility model;

[0019] In the figure: 1. burner body; 2. first smoke exhaust pipe; 3. second smoke exhaust pipe; 4. smoke exhaust main pipe; 5. first solenoid valve; 6. second solenoid valve; 7. exhaust port; 8. exhaust pipe; 9. first sealing cover; 10. first hand ring; 11. mounting ring; 12. connecting rod; 13. mounting groove; 14. supporting ring; 15. filter plate; 16. insulation block; 17. second sealing cover; 18. second hand ring. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example: Figure 1-3 As shown, a regenerative burner for an aluminum melting furnace comprises two burner bodies 1, the sides of the two burner bodies 1 are fixedly connected with a first smoke exhaust pipe 2, the top of the first smoke exhaust pipe 2 is fixedly connected with a second smoke exhaust pipe 3, the ends of the two second smoke exhaust pipes 3 away from the first smoke exhaust pipe 2 are installed with a smoke exhaust main pipe 4, the end of the second smoke exhaust pipe 3 close to the smoke exhaust main pipe 4 is installed with a second solenoid valve 6, the top of the first smoke exhaust pipe 2 is threadedly connected with a second sealing cover 17, the bottom end of the second sealing cover 17 is fixedly connected with a connecting rod 12, a plurality of support rings 14 are evenly arranged on the connecting rod 12, a filter plate 15 is fixedly connected inside the support ring 14, a plurality of mounting rings 11 are evenly installed inside the first smoke exhaust pipe 2, a mounting groove 13 is opened on the top of the mounting ring 11, and the support ring 14 is arranged inside the mounting groove 13, the areas of the plurality of support rings 14 decrease from top to bottom, and the mesh number of the filter holes of the plurality of filter plates 15 decreases from top to bottom;

[0022] When the burner is working normally, smoke is generated from the burner body 1, enters the smoke exhaust main pipe 4 along the first smoke exhaust pipe 2 and the second smoke exhaust pipe 3 and is discharged. The smoke passes through multiple filter plates 15 and is filtered. The smoke ash stays on the filter plates 15. The filter plates 15 are concentrated in the vertical area of ​​the first smoke exhaust pipe 2, and the top end of the first smoke exhaust pipe 2 is open. The opening of the first smoke exhaust pipe 2 is sealed by the second sealing cover 17. When the filter plate 15 needs to be cleaned, the second sealing cover 17 is opened, and the support ring 14 and the filter plate 15 are pulled out of the first smoke exhaust pipe 2 through the connecting rod 12, so that the filter plate 15 can be cleaned, and cleaning is more convenient.

[0023] Specifically, Figure 1 and Figure 2 As shown, a discharge port 7 is provided at the bottom of the first smoke exhaust pipe 2, a discharge pipe 8 is fixedly connected to the bottom end of the discharge port 7, a first sealing cover 9 is threadedly connected to the bottom end of the discharge pipe 8, most of the smoke ash is blocked by the bottom filter plate 15, and the smoke ash accumulates along the first smoke exhaust pipe 2 at the lowest point of the first smoke exhaust pipe 2, that is, accumulates at the discharge port 7. When the first sealing cover 9 is opened, the smoke ash is discharged outward from the discharge port 7 along the discharge pipe 8, so as to keep the interior of the first smoke exhaust pipe 2 clean.

[0024] Specifically, Figure 1 As shown, a first solenoid valve 5 is installed at the bottom of the first smoke exhaust pipe 2, and the first solenoid valve 5 is arranged at one end of the first smoke exhaust pipe 2 close to the burner body 1. The first solenoid valve 5 is arranged at one end of the first smoke exhaust pipe 2 close to the burner body 1, and cooperates with the second solenoid valve 6 to make the first smoke exhaust pipe 2 and the second smoke exhaust pipe 3 between the first solenoid valve 5 and the second solenoid valve 6 without hot air flowing. The filter plate 15 can be cleaned during the normal operation of the burner, or the smoke ash can be discharged from the exhaust pipe 8, so that the equipment can be cleaned without delaying production.

[0025] Specifically, Figure 3 As shown, the bottom end of the second sealing cover 17 is fixedly connected with an insulating block 16, and the side of the insulating block 16 is in contact with the inner wall of the first smoke exhaust pipe 2, and the top of the second sealing cover 17 is fixedly connected with a second bracelet 18. The insulating block 16 is arranged at the bottom of the second sealing cover 17 to isolate hot air from directly acting on the second sealing cover 17, thereby extending the service life of the seal on the second sealing cover 17.

[0026] Specifically, Figure 2 and Figure 3 As shown, a heat-insulating block 16 is fixedly connected to the top of the first sealing cover 9, and the side of the heat-insulating block 16 is in contact with the inner wall of the exhaust pipe 8. A first bracelet 10 is fixedly connected to the bottom end of the first sealing cover 9. The heat-insulating block 16 is arranged on the top of the first sealing cover 9 to isolate hot air from directly acting on the first sealing cover 9, thereby extending the service life of the seal on the first sealing cover 9.

[0027] Working principle: When the burner is working normally, smoke is generated from the burner body 1, enters the smoke exhaust main pipe 4 along the first smoke exhaust pipe 2 and the second smoke exhaust pipe 3 and is discharged. The smoke passes through multiple filter plates 15 and is filtered. The smoke ash stays on the filter plates 15. The corresponding first solenoid valve 5 and the second solenoid valve 6 are closed, and the filter plates 15 are concentrated in the vertical area of ​​the first smoke exhaust pipe 2. The top end of the first smoke exhaust pipe 2 is opened, and the opening of the first smoke exhaust pipe 2 is sealed by the second sealing cover 17. When the filter plate 15 needs to be cleaned, the second sealing cover 17 is opened, and the support ring 14 and the filter plate 15 are pulled out of the first smoke exhaust pipe 2 through the connecting rod 12, and the filter plate 15 can be cleaned;

[0028] The smoke ash accumulates along the first smoke exhaust pipe 2 at the lowest point of the first smoke exhaust pipe 2 , namely at the exhaust port 7 . The first sealing cover 9 is opened, and the smoke ash is discharged outwardly from the exhaust port 7 along the exhaust pipe 8 , so as to keep the interior of the first smoke exhaust pipe 2 clean.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A regenerative burner for an aluminum melting furnace, comprising two burner bodies (1), characterized in that: The sides of the two burner bodies (1) are fixedly connected with a first smoke exhaust pipe (2), the top of the first smoke exhaust pipe (2) is fixedly connected with a second smoke exhaust pipe (3), the ends of the two second smoke exhaust pipes (3) away from the first smoke exhaust pipe (2) are equipped with a smoke exhaust main pipe (4), the ends of the second smoke exhaust pipes (3) close to the smoke exhaust main pipe (4) are equipped with a second solenoid valve (6), the top of the first smoke exhaust pipe (2) is threadedly connected with a second sealing cover (17), the bottom of the second sealing cover (17) is fixedly connected with a connecting rod (12), a plurality of support rings (14) are evenly arranged on the top of the connecting rod (12), a filter plate (15) is fixedly connected inside the support ring (14), a plurality of mounting rings (11) are evenly installed inside the first smoke exhaust pipe (2), a mounting groove (13) is provided on the top of the mounting ring (11), and the support ring (14) is arranged inside the mounting groove (13).

2. The regenerative burner for an aluminum melting furnace according to claim 1, characterized in that: The bottom of the first smoke exhaust pipe (2) is provided with an exhaust port (7), the bottom end of the exhaust port (7) is fixedly connected to an exhaust pipe (8), and the bottom end of the exhaust pipe (8) is threadedly connected to a first sealing cover (9).

3. The regenerative burner for aluminum melting furnace according to claim 1, characterized in that: A first solenoid valve (5) is installed at the bottom of the first smoke exhaust pipe (2), and the first solenoid valve (5) is arranged at one end of the first smoke exhaust pipe (2) close to the burner body (1).

4. The regenerative burner for an aluminum melting furnace according to claim 1, characterized in that: The bottom end of the second sealing cover (17) is fixedly connected to a heat insulating block (16), and the side surface of the heat insulating block (16) is in contact with the inner wall of the first smoke exhaust pipe (2), and the top end of the second sealing cover (17) is fixedly connected to a second bracelet (18).

5. The regenerative burner for an aluminum melting furnace according to claim 2, characterized in that: The top of the first sealing cover (9) is fixedly connected to a heat insulating block (16), and the side of the heat insulating block (16) is in contact with the inner wall of the discharge pipe (8), and the bottom of the first sealing cover (9) is fixedly connected to a first bracelet (10).

6. The regenerative burner for an aluminum melting furnace according to claim 1, characterized in that: The areas of the plurality of support rings (14) decrease sequentially from top to bottom, and the mesh sizes of the filter holes of the plurality of filter plates (15) decrease sequentially from top to bottom.

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