Low-nitrogen burner structure for energy-saving tunnel kiln

Abstract

This utility model discloses a low-NOx burner structure for an energy-saving tunnel kiln, including a burner head. A connecting pipe is connected to an air duct at one end, and a heat insulation plate is fitted onto the air duct. First bolts are inserted through the front and rear of the heat insulation plate, and the other end of each first bolt is spirally wound onto the air duct. Fixing blocks are provided at the upper and lower ends of the heat insulation plate, and through holes are provided on each fixing block. The fixing blocks of this low-NOx burner structure for the energy-saving tunnel kiln are made of magnesium steel, and the fixing blocks, through multiple sets of first bolts, the heat insulation plate, and the air duct, form a spiral locking structure. This allows for heat insulation of the air duct through the heat insulation plate, while also facilitating disassembly of the air duct through the heat insulation material. The inner tubes of this device are spirally wound into spiral grooves to form a spiral locking structure, and the inner tubes are also spirally locked to the air duct through multiple sets of second bolts. This facilitates cleaning and unblocking of the air duct through the multiple easily disassembled inner tubes.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving tunnel kiln technology, specifically to a low-NOx burner structure for energy-saving tunnel kilns. Background Technology

[0002] Energy-saving tunnel kilns are a technological system that reduces energy consumption in the ceramic firing process through optimization of process parameters, improvement of equipment structure, and optimization of the thermal energy management system. During operation, low-NOx burners are used to burn fuel in order to improve the thermal efficiency of the equipment and reduce nitrogen oxide emissions.

[0003] Low-NOx burners, during operation, introduce combustion air through a duct system, which mixes and burns the air within the burner. However, in existing low-NOx burner structures, the duct system remains hot after operation, making disassembly inconvenient. Furthermore, the length and weight of the duct system increase the inconvenience of periodic disassembly. Therefore, an energy-saving low-NOx burner structure for tunnel kilns is proposed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a low-NOx burner structure for energy-saving tunnel kilns, in order to solve the problems mentioned in the background art, such as the high surface temperature of the existing low-NOx burner structure after the air duct system has been working, making it inconvenient to disassemble, and the air duct having a certain length and weight, which increases the inconvenience of periodic disassembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-NOx burner structure for an energy-saving tunnel kiln, including a burner head, a connecting pipe on the burner head, an air duct connected to one end of the connecting pipe, and a heat insulation plate fitted on the air duct, a first bolt inserted through the front and rear of the heat insulation plate, and the other end of the first bolt screwed onto the air duct, and a fixing block provided at the upper and lower ends of the heat insulation plate, with through holes respectively opened on the fixing block;

[0006] The air duct has an inner tube inserted inside, and the inner tube has a spiral tube at one end. The air duct has a corresponding spiral groove at the other end, and the spiral tube is spiraled in the spiral groove. Multiple sets of second bolts are inserted into the air duct at the top and bottom, and the other end of the second bolt is spiraled on the inner tube.

[0007] The connecting pipe and the air duct are respectively fitted with fixing rings, and multiple sets of ball bearings are embedded in the outer side of the fixing rings. The fixing rings are provided with a support frame below.

[0008] Preferably, the fixing block is made of magnesium steel, and the fixing block forms a spiral locking structure with the air duct through multiple sets of first bolts, heat insulation plate and air duct.

[0009] Preferably, the inner tubes are spirally locked together within a spiral groove by a spiral tube, and the inner tubes are also spirally locked together with the air duct by multiple sets of second bolts.

[0010] Preferably, the air duct and connecting pipe are all formed into a rotating structure with the support frame through a fixing ring, ball bearings and a support frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The fixing block of the low-NOx burner structure for the energy-saving tunnel kiln is made of magnesium steel, and the fixing block forms a spiral locking structure with the air duct through multiple sets of first bolts, heat insulation plates, and air ducts. Thus, while the air duct is insulated by the heat insulation plate, the air duct can be easily disassembled through the heat insulation material. The inner tubes of the device form a spiral locking structure by spiral tubes spiraling in spiral grooves, and the inner tubes also form a spiral locking structure with the air duct through multiple sets of second bolts. Thus, during the cleaning process inside the air duct, the convenience of unblocking and cleaning can be increased by multiple sets of easily disassembled inner tubes. The air ducts and connecting pipes of the device form a rotating structure with fixing rings, ball bearings, and support frames. Thus, the air duct is supported by multiple sets of ball bearings and support frames during the overall disassembly of the air duct, thereby increasing the convenience of the disassembly process. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the low-NOx burner for the energy-saving tunnel kiln of this utility model;

[0013] Figure 2 This is a schematic diagram of the inner tube assembly of the low-NOx burner for the energy-saving tunnel kiln of this utility model.

[0014] Figure 3 This is a side view of the air duct assembly of the low-NOx burner structure for the energy-saving tunnel kiln of this utility model.

[0015] Figure 4 This is a side view of the low-NOx burner support frame assembly for the energy-saving tunnel kiln of this utility model.

[0016] In the diagram: 1. Burner head, 2. Connecting pipe, 3. Air duct, 4. Heat insulation plate, 5. Fixing block, 6. First bolt, 7. Inner tube, 8. Second bolt, 9. Spiral tube, 10. Support frame, 11. Fixing ring, 12. Ball bearing. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a low-NOx burner structure for an energy-saving tunnel kiln, including a burner head 1, a connecting pipe 2 on the burner head 1, an air duct 3 connected to one end of the connecting pipe 2, and a heat insulation plate 4 fitted on the air duct 3, with first bolts 6 inserted through the front and rear of the heat insulation plate 4 respectively, and the other end of the first bolts 6 being spirally attached to the air duct 3, and fixing blocks 5 being provided at the upper and lower ends of the heat insulation plate 4 respectively, with through holes respectively opened on the fixing blocks 5.

[0019] Furthermore, the fixing block 5 is made of magnesium steel. The fixing block 5 forms a spiral locking structure with the air duct 3 through multiple sets of first bolts 6, heat insulation plate 4, and air duct 3. Thus, the heat insulation plate 4 and the magnesium steel fixing block 5 with heat insulation effect prevent the air duct 3 from being too hot to disassemble after the low nitrogen burner is used.

[0020] The air duct 3 has an inner tube 7 inserted inside it, and the inner tube 7 has a spiral tube 9 at one end. The air duct 3 has a corresponding spiral groove at the other end, and the spiral tube 9 is spiraled in the spiral groove. Multiple sets of second bolts 8 are inserted into the upper and lower parts of the air duct 3, and the other end of the second bolt 8 is spiraled on the inner tube 7. It should be noted that the air ducts 3 can be spirally installed through spiral assemblies, and after the air duct 3 is assembled, the outer ends of the inner tubes 7 at both ends are smooth and sealed, thereby ensuring the normal use of the inner tubes 7 and the normal assembly of the air duct 3.

[0021] Furthermore, the inner tubes 7 are spirally locked together in the spiral groove by spiral tubes 9, and the inner tubes 7 are also spirally locked together with the air duct 3 by multiple sets of second bolts 8. Thus, the spiral tubes 9 facilitate the installation and removal of multiple sets of inner tubes 7, thereby increasing the convenience of cleaning and unblocking the inside of the air duct 3.

[0022] The connecting pipe 2 and the air pipe 3 are respectively fitted with fixing rings 11, and multiple sets of ball bearings 12 are embedded in the outer side of the fixing rings 11. The fixing rings 11 are provided with a support frame 10 below. It should be noted that this utility model is a low-nitrogen burner structure for energy-saving tunnel kilns. All components are standard parts or components known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0023] Furthermore, the air duct 3 and the connecting pipe 2 are both connected to the support frame 10 through the fixing ring 11 and the ball bearing 12 to form a rotating structure. Thus, the air duct 3 can be supported by the support frame 10 during the overall disassembly process, and the ball bearing 12 can be used to avoid affecting the rotation and sliding effect during the disassembly process.

[0024] Working Principle: When using a low-NOx burner structure for an energy-saving tunnel kiln, the duct system needs to be disassembled and cleaned promptly after the low-NOx burner is used. First, the spiral assembly at the connection of duct 3 can be disassembled using a spiral mechanism, facilitating the overall disassembly and cleaning of the assembled duct 3. Simultaneously, the support frame 10 supports the entire duct 3, preventing tilting due to gravity at one end during disassembly, thus ensuring ease of disassembly. Meanwhile, the ball bearings 12 prevent interference with the rotation and sliding of the duct 3. During disassembly, the duct 3 can be installed using a spiral mechanism. The heat insulation plate 4 prevents the high temperature of the pipes from causing burns to the workers. At the same time, the heat-insulating fixing block 5 facilitates the disassembly and removal of the air duct 3, thereby increasing the safety of the disassembly process. After the air duct 3 is disassembled, the second bolt 8 can be removed by screwing it to take out the inner tube 7 from the air duct 3. Then, the inner tube 7 can be disassembled by rotating it, so that the inner tube 7 can be disassembled into appropriate lengths for unblocking and cleaning, thereby increasing the convenience of regular cleaning of the air duct system. This is the usage process of the low-NOx burner structure for the energy-saving tunnel kiln.

[0025] 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-NOx burner structure for an energy-saving tunnel kiln, comprising a burner head (1), wherein a connecting pipe (2) is provided on the burner head (1), characterized in that: The connecting pipe (2) is connected to a duct (3) at one end, and a heat insulation plate (4) is fitted on the duct (3). The heat insulation plate (4) has a first bolt (6) inserted at the front and rear respectively, and the other end of the first bolt (6) is spirally attached to the duct (3). The heat insulation plate (4) has a fixing block (5) at the upper and lower ends respectively, and a through hole is opened on the fixing block (5). The air duct (3) has an inner tube (7) inserted inside, and the inner tube (7) has a spiral tube (9) at one end. The air duct (3) has a corresponding spiral groove at the other end, and the spiral tube (9) is spiraled in the spiral groove. The air duct (3) has multiple sets of second bolts (8) inserted at the top and bottom, and the other end of the second bolts (8) is spiraled on the inner tube (7). The connecting pipe (2) and the air duct (3) are respectively fitted with fixing rings (11), and the fixing rings (11) have multiple sets of balls (12) embedded on the outside. The fixing rings (11) are provided with a support frame (10) below.

2. The low-NOx burner structure for energy-saving tunnel kilns according to claim 1, characterized in that: The fixing block (5) is made of magnesium steel, and the fixing block (5) is connected to the air duct (3) by multiple sets of first bolts (6), heat insulation plate (4) to form a spiral locking structure.

3. The low-NOx burner structure for energy-saving tunnel kilns according to claim 1, characterized in that: The inner tubes (7) are connected by a spiral tube (9) spirally wound into a spiral groove to form a spiral locking structure. The inner tubes (7) are connected to the air duct (3) by multiple sets of second bolts (8) to form a spiral locking structure.

4. The low-NOx burner structure for energy-saving tunnel kilns according to claim 1, characterized in that: The air duct (3) and connecting pipe (2) are both connected to the support frame (10) through a fixed ring (11), a ball bearing (12) to form a rotating structure.

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