A sealing device for the burner of a sintering machine ignition furnace

Abstract

The present invention belongs to the technical field of sintering equipment, and particularly relates to a sealing device for a burner of a sintering machine ignition furnace, which includes a burner housing, an air inlet pipe fixed on the surface of the burner housing, and a gas inlet pipe arranged at one end of the burner housing. A sparking electrode is fixed on the surface of the burner housing. A flue gas pipe is arranged at one end of the burner housing away from the gas inlet pipe. A sealing mechanism is arranged between the gas inlet pipe and the flue gas pipe. By screwing the connecting sleeve rod into the connecting sleeve, the sealing performance between the gas inlet pipe and the guide pipe can be ensured, and it is ensured that the gas will not escape. The gas is transported to the inside of the burner housing through the gas inlet pipe, thereby pushing the wrapped sealing ring to move on the surface of the guide pipe, realizing automatic sealing of the gas inlet pipe and the guide pipe after the gas is transported in, so that there is a good sealing and compensation function between them.

Description

Technical Field

[0001] The present invention belongs to the technical field of sintering equipment, and particularly relates to a burner sealing device for a sintering machine ignition furnace. Background Art

[0002] During the use of a sintering machine, an ignition furnace is a device for igniting the sintering mixture on the sintering machine. It provides the initial energy for the combustion of the sintering mixture and is a high-temperature heating device. It first burns gas in the combustion-supporting air to generate a hot flame and high-temperature flue gas, and ignites the sintering mixture by means of thermal radiation. The sealing condition of the burner of the ignition furnace directly affects whether the sintering mixture can obtain a stable and reasonable ignition state. During long-term use, the burner is prone to looseness, posing risks of falling off and air leakage, with poor sealing effect and easy waste of gas. Summary of the Invention

[0003] To solve the problems raised in the above background art, the present invention provides a burner sealing device for a sintering machine ignition furnace, with the following characteristics.

[0004] To achieve the above object, the present invention provides the following technical solution: A burner sealing device for a sintering machine ignition furnace, including a burner housing, an air inlet pipe fixed on the surface of the burner housing, and a gas inlet pipe provided at one end of the burner housing. A spark electrode is fixed on the surface of the burner housing, and a flue gas pipe is provided at the end of the burner housing away from the gas inlet pipe. A sealing mechanism is provided between the gas inlet pipe and the flue gas pipe;

[0005] The sealing mechanism includes a connection component, a plugging component, a sealing component, and a fixing component. The connection component is installed at one end of the burner housing close to the gas inlet pipe, the plugging component is installed inside the burner housing, the sealing component is installed between the burner housing and the flue gas pipe, and the fixing component is fixed on the surface of the sealing component.

[0006] As a preferred embodiment of the burner sealing device for a sintering machine ignition furnace of the present invention, the connection component includes a connection sleeve, a wrapping sealing ring, a thread part A, a connection rod, and a thread part B. The connection sleeve is fixed inside one end of the burner housing close to the gas inlet pipe. A wrapping sealing ring is provided inside the connection sleeve, and a thread part A is provided inside the connection sleeve. One end of the gas inlet pipe close to the burner housing is rotatably connected to the connection rod through a bearing, and a thread part B is provided on the surface of the connection rod.

[0007] As a preferred embodiment of the burner sealing device for a sintering machine ignition furnace of the present invention, the thread part A and the thread part B are matched, and the connection rod and the connection sleeve are threadedly connected through the thread part B and the thread part A.

[0008] Preferably, as a burner sealing device for a sintering machine ignition furnace of the present invention, the plugging assembly includes an air guide pipe, a spring, a piston plate, an air outlet pipe, a plugging air tank, a push plate, a push rod and a fixing rod. An air guide pipe is arranged inside the burner housing close to the connecting sleeve. Four groups of the fixing rods are evenly fixed between the air guide pipe and the burner housing. A piston plate is arranged inside the air guide pipe. The spring is fixed between the piston plate and the air guide pipe. Four groups of the air outlet pipes are evenly fixed on the surface of the air guide pipe away from the connecting sleeve. Plugging air tanks are fixed at one ends of the four groups of air outlet pipes away from the air guide pipe. Push plates are arranged inside the four groups of plugging air tanks. A push rod is fixed at one end of the push plate close to the connecting sleeve.

[0009] Preferably, as a burner sealing device for a sintering machine ignition furnace of the present invention, one end of the air guide pipe close to the connecting sleeve is of an open structure, and the open end of the air guide pipe penetrates through one end of the connecting sleeve and extends into the inside of the connecting sleeve. A sliding groove is formed inside the wrapping sealing ring. The wrapping sealing ring and the air guide pipe are slidably connected through the sliding groove, and the gas inlet pipe and the air guide pipe have the same diameter.

[0010] Preferably, as a burner sealing device for a sintering machine ignition furnace of the present invention, the piston plate and the air guide pipe are slidably connected through the internal cavity A thereof. A cavity B is formed inside the plugging air tank. The push plate and the plugging air tank are slidably connected through the cavity B, and the plugging air tank and the air guide pipe are communicated through the air outlet pipe. One end of the push rod away from the push plate penetrates through the inside of the plugging air tank and extends into the inside of the connecting sleeve and is connected to the wrapping sealing ring.

[0011] Preferably, as a burner sealing device for a sintering machine ignition furnace of the present invention, four groups of L-shaped gas nozzles are integrally welded on the surface of the air guide pipe away from the connecting sleeve. A fixed air disk is fixed inside the flue gas pipe. A support groove matching with the four groups of gas nozzles is formed inside the fixed air disk, and one ends of the four groups of gas nozzles away from the air guide pipe are inserted into the inside of the fixed air disk through the four groups of support grooves.

[0012] Preferably, as a burner sealing device for a sintering machine ignition furnace according to the present invention, the sealing assembly includes a sealing cover A, a sealing cover B, positioning insertion rods, a sealing gasket A, and a sealing gasket B. A semi-circular sealing cover A is provided on the surfaces of the burner housing and the flue gas duct. The sealing cover B with a semi-circular structure is arranged on the side of the sealing cover A close to the burner housing and the flue gas duct. Positioning slots are respectively formed at the four corners inside the side of the sealing cover A close to the sealing cover B. The positioning insertion rods are fixed on the side of the sealing cover B close to the four groups of positioning slots. Sealing grooves A are symmetrically formed on both sides of one end of the sealing cover A close to the sealing cover B. Sealing grooves B are symmetrically formed on both sides of one end of the sealing cover B close to the sealing cover A. The sealing gasket A is fixed on the surface of one end of the burner housing close to the flue gas duct. The sealing gasket B is fixed on the surface of one end of the flue gas duct close to the burner housing.

[0013] Preferably, as a burner sealing device for a sintering machine ignition furnace according to the present invention, the sealing gasket A and the sealing gasket B are identical in shape and size, and the surfaces of the sealing gasket A and the sealing gasket B are respectively adapted to the inner wall surfaces of the sealing grooves A and the sealing grooves B.

[0014] Preferably, as a burner sealing device for a sintering machine ignition furnace according to the present invention, the fixing assembly includes a fixing plate A, a fixing plate B, a connecting block, and a locking bolt. The fixing plate A is symmetrically fixed on both sides of the surface of the sealing cover A. The fixing plate B is symmetrically fixed on both sides of the surface of the sealing cover B. Connecting blocks are respectively fixed on the lower surfaces of the two groups of fixing plate A. A plurality of threaded grooves A are respectively formed on the surfaces of the two groups of fixing plate A, and locking bolts are respectively threadedly connected inside the plurality of threaded grooves A. A threaded groove B is formed on the side of the fixing plate B close to the locking bolt. A connecting groove matching the connecting block is formed inside the fixing plate B, and the connecting block is inserted into the fixing plate B through the connecting groove.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By screwing the connecting sleeve rod into the connecting sleeve, the sealing performance between the gas inlet pipe and the guide pipe can be ensured, and it is ensured that gas will not escape. Subsequently, the sealing cover A and the sealing cover B are wrapped around the joint ends of the burner housing and the flue gas duct, and then the locking bolts are screwed into the threaded grooves A, so that the sealing cover A and the sealing cover B are firmly wrapped on the surfaces of the burner housing and the flue gas duct, which can better achieve the sealing effect. The gas is transported to the inside of the burner housing through the gas inlet pipe, thereby pushing the wrapped sealing ring to move on the surface of the guide pipe, realizing the automatic sealing treatment of the gas inlet pipe and the guide pipe after the gas is transported in, and enabling good sealing and compensation functions therebetween. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and form 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 to the present invention. In the drawings:

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a cross-sectional view of the burner housing in the present invention;

[0019] Figure 3 is a cross-sectional view of the connecting sleeve in the present invention;

[0020] Figure 4 is a schematic diagram of the structure of the connecting component in the present invention;

[0021] Figure 5 is a cross-sectional view of the plugging component in the present invention;

[0022] Figure 6 is a schematic diagram of the structure of the air guide pipe in the present invention;

[0023] Figure 7 is a schematic diagram of the structure of the flue gas pipe in the present invention;

[0024] Figure 8 is a schematic diagram of the structure of the sealing component in the present invention;

[0025] Figure 9 is a schematic diagram of the structure of the sealing cover B in the present invention;

[0026] Figure 10 is a schematic diagram of the structure of the fixing component in the present invention.

[0027] In the figure:

[0028] 1, burner housing; 2, air inlet pipe; 3, gas inlet pipe; 4, ignition electrode; 5, flue gas pipe;

[0029] 6, sealing mechanism;

[0030] 61, connecting component; 611, connecting sleeve; 612, wrapping sealing ring; 613, thread part A; 614, connecting rod; 615, thread part B;

[0031] 62, plugging component; 621, air guide pipe; 6211, gas nozzle; 6212, fixed air disc; 622, spring; 623, piston plate; 624, outlet pipe; 625, plugging gas tank; 626, push plate; 627, push rod; 628, fixed rod;

[0032] 63. Sealing assembly; 631. Sealing cover A; 632. Sealing cover B; 633. Positioning slot; 634. Positioning plug; 635. Sealing groove A; 636. Sealing groove B; 637. Sealing gasket A; 638. Sealing gasket B;

[0033] 64. Fixing assembly; 641. Fixing plate A; 642. Fixing plate B; 643. Connecting block; 644. Threaded groove A; 645. Locking bolt; 646. Threaded groove B; 647. Connecting groove. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0035] As Figures 1 - 10 shown:

[0036] A sealing device for a burner of a sintering machine ignition furnace includes a burner housing 1, an air inlet pipe 2 fixed on the surface of the burner housing 1, and a gas inlet pipe 3 arranged at one end of the burner housing 1. A spark electrode 4 is fixed on the surface of the burner housing 1. A flue gas pipe 5 is arranged at one end of the burner housing 1 away from the gas inlet pipe 3. A sealing mechanism 6 is arranged between the gas inlet pipe 3 and the flue gas pipe 5;

[0037] The sealing mechanism 6 includes a connection assembly 61, a plugging assembly 62, a sealing assembly 63 and a fixing assembly 64. A connection assembly 61 is installed at one end of the burner housing 1 close to the gas inlet pipe 3. A plugging assembly 62 is installed inside the burner housing 1. A sealing assembly 63 is installed between the burner housing 1 and the flue gas pipe 5. The fixing assembly 64 is fixed on the surface of the sealing assembly 63.

[0038] In an optional embodiment, the connection assembly 61 includes a connection sleeve 611, a wrapping sealing ring 612, a threaded part A 613, a connection sleeve rod 614 and a threaded part B 615. The connection sleeve 611 is fixed inside one end of the burner housing 1 close to the gas inlet pipe 3. A wrapping sealing ring 612 is arranged inside the connection sleeve 611. A threaded part A 613 is arranged inside the connection sleeve 611. One end of the gas inlet pipe 3 close to the burner housing 1 is rotatably connected with a connection sleeve rod 614 through a bearing. A threaded part B 615 is arranged on the surface of the connection sleeve rod 614.

[0039] In an optional embodiment, the threaded part A 613 and the threaded part B 615 are matched, and the connection sleeve rod 614 and the connection sleeve 611 are threadedly connected through the threaded part B 615 and the threaded part A 613.

[0040] In an alternative embodiment, the plugging assembly 62 includes an air duct 621, a spring 622, a piston plate 623, an air outlet pipe 624, a plugging air tank 625, a push plate 626, a push rod 627 and a fixing rod 628. An air duct 621 is disposed inside the burner housing 1 near the connecting sleeve 611. Four groups of fixing rods 628 are uniformly fixed between the air duct 621 and the burner housing 1. A piston plate 623 is disposed inside the air duct 621. A spring 622 is fixed between the piston plate 623 and the air duct 621. Four groups of air outlet pipes 624 are uniformly fixed on the surface of the air duct 621 away from the connecting sleeve 611. A plugging air tank 625 is fixed to one end of each of the four groups of air outlet pipes 624 away from the air duct 621. A push plate 626 is disposed inside each of the four groups of plugging air tanks 625. A push rod 627 is fixed to one end of the push plate 626 near the connecting sleeve 611.

[0041] In an alternative embodiment, one end of the air duct 621 near the connecting sleeve 611 has an open structure, and the open end of the air duct 621 penetrates through one end of the connecting sleeve 611 and extends into the inside of the connecting sleeve 611. A chute is formed inside the wrapping sealing ring 612. The wrapping sealing ring and the air duct 621 are slidably connected through the chute, and the gas inlet pipe 3 and the air duct 621 have the same diameter.

[0042] In an alternative embodiment, the piston plate 623 and the air duct 621 are slidably connected through an internal cavity A thereof. A cavity B is formed inside the plugging air tank 625. The push plate 626 and the plugging air tank 625 are slidably connected through the cavity B. The plugging air tank 625 and the air duct 621 communicate with each other through the air outlet pipe 624. One end of the push rod 627 away from the push plate 626 penetrates through the inside of the plugging air tank 625 and extends into the inside of the connecting sleeve 611 and is connected to the wrapping sealing ring 612.

[0043] In an alternative embodiment, four groups of L-shaped gas nozzles 6211 are integrally welded and formed on the surface of the air duct 621 away from the connecting sleeve 611. A fixed air disk 6212 is fixed inside the flue gas pipe 5. A support groove matching the four groups of gas nozzles 6211 is formed inside the fixed air disk 6212. One end of each of the four groups of gas nozzles 6211 away from the air duct 621 is inserted into the inside of the fixed air disk 6212 through the four support grooves.

[0044] In an alternative embodiment, the sealing assembly 63 includes a sealing cover A631, a sealing cover B632, positioning plug rods 634, a sealing gasket A637, and a sealing gasket B638. A sealing cover A631 with a semi-circular structure is provided on the surfaces of the burner housing 1 and the flue gas duct 5. A sealing cover B632 with a semi-circular structure is arranged on the side of the sealing cover A631 close to the burner housing 1 and the flue gas duct 5. Positioning slots 633 are formed at the four corners inside the side of the sealing cover A631 close to the sealing cover B632. Positioning plug rods 634 are fixed on the side of the sealing cover B632 close to the four groups of positioning slots 633. Sealing grooves A635 are symmetrically formed on both sides of one end of the sealing cover A631 close to the sealing cover B632. Sealing grooves B636 are symmetrically formed on both sides of one end of the sealing cover B632 close to the sealing cover A631. A sealing gasket A637 is fixed on the surface of one end of the burner housing 1 close to the flue gas duct 5. A sealing gasket B638 is fixed on the surface of one end of the flue gas duct 5 close to the burner housing 1.

[0045] In an alternative embodiment, the sealing gasket A637 and the sealing gasket B638 are identical in shape and size, and the surfaces of the sealing gasket A637 and the sealing gasket B638 are respectively adapted to the inner wall surfaces of the sealing grooves A635 and the sealing grooves B636.

[0046] In an alternative embodiment, the fixing assembly 64 includes a fixing plate A641, a fixing plate B642, a connecting block 643, and a locking bolt 645. Fixing plates A641 are symmetrically fixed on both sides of the surface of the sealing cover A631. Fixing plates B642 are symmetrically fixed on both sides of the surface of the sealing cover B632. Connecting blocks 643 are fixed on the lower surfaces of the two groups of fixing plates A641. A plurality of threaded grooves A644 are formed on the surfaces of the two groups of fixing plates A641, and locking bolts 645 are threadedly connected inside the plurality of threaded grooves A644. A threaded groove B646 is formed on the side of the fixing plate B642 close to the locking bolt 645. A connecting groove 647 matching the connecting block 643 is formed inside the fixing plate B642, and the connecting block 643 is inserted into the fixing plate B642 through the connecting groove 647.

[0047] In this implementation: Align the end of the gas inlet pipe 3 with the connecting sleeve rod 614 to one end of the connecting sleeve 611, and then rotate the connecting sleeve rod 614 so that the threaded part B615 provided on its surface is screwed into the threaded part A613 provided inside the connecting sleeve 611. Then drive the gas inlet pipe 3 to insert into the inside of the connecting sleeve 611 and closely adhere to the penetrating end of the air duct 621. Since one end of the gas inlet pipe 3 extends from the inside of the connecting sleeve rod 614, when the gas inlet pipe 3 is in contact with the air duct 621, there is a certain gap between the wrapping sealing ring 612 and the connecting sleeve rod 614. And both adjacent ends of the gas inlet pipe 3 and the air duct 621 are provided with close-fitting gaskets, which can ensure the sealing performance when the two are in close contact and ensure that the gas will not escape. Then, insert the end of the burner housing 1 with the sealing gasket A637 into one set of the sealing grooves B636, and then insert the end of the flue gas pipe 5 with the sealing gasket A637 into the other set of the sealing grooves B636. Then align the positioning slot 633 opened on one side of the sealing cover A631 with the surface of the positioning rod 634, and then press down the sealing cover A631, so as to cover the sealing cover A631 on the surface of the sealing cover B632, thereby clamping the sealing gasket A637 and the sealing gasket B638 into the sealing grooves A635 and the sealing grooves B636, so as to wrap the joint ends of the burner housing 1 and the flue gas pipe 5 between the sealing cover A631 and the sealing cover B632. With the fitting of the sealing cover A631 and the sealing cover B632, it can drive the fixing plate A641 and the fixing plate B642 to fit with each other. During this period, it will drive the connecting block 643 to insert into the connecting groove 647, and then screw the locking bolt 645 into the internal thread groove A644 until it is screwed into the internal thread groove B646, so as to screw the fixing plate A641 and the fixing plate B642 together through the locking bolt 645, thereby firmly wrapping the sealing cover A631 and the sealing cover B632 on the surfaces of the burner housing 1 and the flue gas pipe 5, so as to better achieve the sealing effect. Then, convey the gas to the inside of the burner housing 1 through the gas inlet pipe 3, so as to convey the gas to the inside of the air duct 621, and then push the piston plate 623 to slide inside the air duct 621, then squeeze the spring 622 to deform and generate elastic force, so as to compress the gas inside the air duct 621 and input it into the inside of the plugging air tank 625 through the air outlet pipe 624. Then push the push plate 626 inside the plugging air tank 625 to move, so as to push the push rod 627 to slide in the sliding grooves opened inside the plugging air tank �25 and the connecting sleeve 611, thereby pushing the wrapping sealing ring 612 to move on the surface of the air duct 621 until the side of the wrapping sealing ring 612 away from the push rod 627 abuts against the surface of the connecting sleeve rod 614. At this time, the middle part of the wrapping sealing ring 612 just lies at the connection between the gas inlet pipe 3 and the air duct 621.Thus, after the gas is delivered, the gas inlet pipe 3 and the guide pipe 621 can be automatically sealed, enabling good sealing and compensation functions between them. Since the gas nozzle 6211 is located on the side of the outlet pipe 624 away from the connecting sleeve 611, as the gas is delivered, it will first enter the inside of the plugging gas tank 625 through the outlet pipe 624 until the piston plate 623 passes by the outlet pipe 624 and the gas nozzle 6211. At this time, the gas inside the guide pipe 621 will be output through the gas nozzle 6211, and the gas pressures inside the guide pipe 621 and the plugging gas tank 625 are kept balanced. Therefore, the positions of the push plate 626 and the push rod 627 will remain unchanged. At this time, air is injected into the inside of the burner housing 1 through the air inlet pipe 2, thereby mixing the gas and air in a certain proportion. Subsequently, the ignition electrode 4 is switched on, and the air is broken down by the ignition electrode 4 to form an electric arc through discharge, thereby igniting the mixed fuel fed in.

[0048] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sealing device for a burner of an ignition furnace of a sintering machine, comprising a burner housing (1), an air inlet pipe (2) fixed on the surface of the burner housing (1), and a gas inlet pipe (3) arranged at one end of the burner housing (1). A sparking electrode (4) is fixed on the surface of the burner housing (1). A flue gas pipe (5) is arranged at one end of the burner housing (1) away from the gas inlet pipe (3). It is characterized in that: A sealing mechanism (6) is provided between the gas inlet pipe (3) and the flue gas pipe (5); The sealing mechanism (6) includes a connection assembly (61), a plugging assembly (62), a sealing assembly (63) and a fixing assembly (64). The connection assembly (61) is installed at one end of the burner housing (1) close to the gas inlet pipe (3). The plugging assembly (62) is installed inside the burner housing (1). The sealing assembly (63) is installed between the burner housing (1) and the flue gas pipe (5). The fixing assembly (64) is fixed on the surface of the sealing assembly (63). The connection assembly (61) includes a connection sleeve (611), a wrapping sealing ring (612), a thread part A (613), a connection sleeve rod (614) and a thread part B (615). The connection sleeve (611) is fixed inside one end of the burner housing (1) close to the gas inlet pipe (3). The wrapping sealing ring (612) is arranged inside the connection sleeve (611). The thread part A (613) is arranged inside the connection sleeve (611). One end of the gas inlet pipe (3) close to the burner housing (1) is rotatably connected with the connection sleeve rod (614) through a bearing. The thread part B (615) is arranged on the surface of the connection sleeve rod (614). The plugging assembly (62) includes a gas guide pipe (621), a spring (622), a piston plate (623), an air outlet pipe (624), a plugging air tank (625), a push plate (626), a push rod (627) and a fixing rod (628). The gas guide pipe (621) is arranged inside the burner housing (1) close to the connection sleeve (611). Four groups of the fixing rods (628) are evenly fixed between the gas guide pipe (621) and the burner housing (1). The piston plate (623) is arranged inside the gas guide pipe (621). The spring (622) is fixed between the piston plate (623) and the gas guide pipe (621). Four groups of the air outlet pipes (624) are evenly fixed on the surface of one end of the gas guide pipe (621) away from the connection sleeve (611). One end of each of the four groups of the air outlet pipes (624) away from the gas guide pipe (621) is fixed with a plugging air tank (625). The push plate (626) is arranged inside each of the four groups of the plugging air tanks (625). The push rod (627) is fixed at one end of the push plate (626) close to the connection sleeve (611). One end of the gas guide pipe (621) close to the connection sleeve (611) has an open structure, and the open end of the gas guide pipe (621) penetrates through one end of the connection sleeve (611) and extends into the connection sleeve (611). A chute is formed inside the wrapping sealing ring (612). The wrapping sealing ring (612) and the gas guide pipe (621) are slidably connected through the chute. The diameters of the gas inlet pipe (3) and the gas guide pipe (621) are the same.The piston plate (623) and the air guide pipe (621) are slidably connected through their internal cavity A. The internal cavity B is provided in the plugging air tank (625). The push plate (626) and the plugging air tank (625) are slidably connected through the cavity B. And the plugging air tank (625) and the air guide pipe (621) are communicated through the air outlet pipe (624). One end of the push rod (627) far away from the push plate (626) penetrates through the inside of the plugging air tank (625), extends into the inside of the connecting sleeve (611), and is connected with the wrapping sealing ring (612); Four groups of L-shaped gas nozzles (6211) are integrally welded and formed on the surface of one end of the air guide pipe (621) far away from the connecting sleeve (611). A fixed air disc (6212) is fixed inside the flue gas pipe (5). A support groove matching with the four groups of gas nozzles (6211) is provided inside the fixed air disc (6212). And one end of the four groups of gas nozzles (6211) far away from the air guide pipe (621) is inserted into the inside of the fixed air disc (6212) through the four support grooves; The sealing assembly (63) includes a sealing cover A (631), a sealing cover B (632), positioning insertion rods (634), a sealing gasket A (637) and a sealing gasket B (638). A semi-circular sealing cover A (631) is covered on the surfaces of the burner housing (1) and the flue gas pipe (5). A semi-circular sealing cover B (632) is arranged on one side of the sealing cover A (631) close to the burner housing (1) and the flue gas pipe (5). Positioning slots (633) are respectively arranged at the four corners inside one side of the sealing cover A (631) close to the sealing cover B (632). The positioning insertion rods (634) are fixed on one side of the sealing cover B (632) close to the four groups of positioning slots (633). Sealing grooves A (635) are symmetrically arranged on both sides of one end of the sealing cover A (631) close to the sealing cover B (632). Sealing grooves B (636) are symmetrically arranged on both sides of one end of the sealing cover B (632) close to the sealing cover A (631). The sealing gasket A (637) is fixed on the surface of one end of the burner housing (1) close to the flue gas pipe (5). The sealing gasket B (638) is fixed on the surface of one end of the flue gas pipe (5) close to the burner housing (1);The fixed component (64) includes a fixing plate A (641), a fixing plate B (642), a connecting block (643) and a locking bolt (645). On both sides of the surface of the sealing cover A (631), the fixing plate A (641) is symmetrically fixed. On both sides of the surface of the sealing cover B (632), the fixing plate B (642) is symmetrically fixed. The connecting block (643) is fixed on the lower surface of each of the two groups of fixing plates A (641). A number of thread grooves A (644) are formed on the surface of each of the two groups of fixing plates A (641), and the locking bolt (645) is threadedly connected to the inside of each of the number of thread grooves A (644). A thread groove B (646) is formed on one side of the fixing plate B (642) close to the locking bolt (645). A connecting groove (647) matching the connecting block (643) is formed inside the fixing plate B (642), and the connecting block (643) is inserted into the inside of the fixing plate B (642) through the connecting groove (647).; 2. The burner sealing device for the sintering machine ignition furnace according to claim 1, characterized in that: The thread portion A (613) and the thread portion B (615) are adapted to each other, and the connecting sleeve rod (614) and the connecting sleeve (611) are threadedly connected through the thread portion B (615) and the thread portion A (613).

3. The burner sealing device for the sintering machine ignition furnace according to claim 2, characterized in that: The sealing gasket A (637) and the sealing gasket B (638) have the same shape and size, and the surfaces of the sealing gasket A (637) and the sealing gasket B (638) are respectively adapted to the inner wall surfaces of the sealing groove A (635) and the sealing groove B (636).

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