A pulverized coal injection lance head structure

Abstract

The utility model relates to ceramic production technical field provides a powder coal spray gun head structure, including spray gun pipe, spray gun head, cyclone and shunt. The spray gun head locates one end at spray gun pipe with fixed connection of spray gun pipe, the cyclone is located inside spray gun head with fixed connection of spray gun head, the shunt is located end portion at cyclone with fixed connection of cyclone. The powder coal spray gun head structure for installing on powder coal spray gun is provided in the utility model, then the powder coal spray gun with powder coal spray gun head structure is inserted into hot blast stove, and the powder coal is shunted through the cyclone, and the powder coal is atomized again through the shunt, the common effect of cyclone and shunt can atomize the powder coal ash of large particle size, and the powder coal atomization angle is sufficient, makes the powder coal fully combustion, effectively improves the powder quality of spray tower production, improves the utilization of powder coal, reduces the energy consumption cost of spray tower process, and further reduces the production cost of enterprise.

Description

Technical Field

[0001] This utility model relates to the field of ceramic production technology, and more specifically, to a pulverized coal injection nozzle structure. Background Technology

[0002] Coal is one of the important energy sources used in the ceramics industry and is widely used in the spray tower process. Coal blocks are processed into pulverized coal, which is then transported to the spray tower through pulverized coal pipelines. The pulverized coal is then injected into the hot air furnace of the spray tower using pulverized coal spray guns for combustion to provide heat energy for the spray tower.

[0003] Due to the large particle size of pulverized coal, the existing technology involves directly injecting pulverized coal into the hot blast stove through a straight pipe. This results in incomplete atomization of the pulverized coal, leading to incomplete combustion and even coking during the combustion process, which affects the hot blast stove. Incomplete combustion of pulverized coal also directly affects the quality of the powder, causing product defects in subsequent production. Furthermore, incomplete combustion of pulverized coal wastes thermal energy, increases the energy consumption cost of the spray tower, and hinders the reduction of production costs for enterprises. Utility Model Content

[0004] The purpose of this utility model is to provide a pulverized coal injection nozzle structure to solve the technical problem of incomplete combustion of pulverized coal caused by directly injecting pulverized coal into the hot blast stove through a straight pipe in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides a pulverized coal injection nozzle structure, including:

[0007] Spray gun barrel;

[0008] A spray gun head, wherein the spray gun head is disposed at one end of the spray gun tube and is fixedly connected to the spray gun tube;

[0009] A cyclone separator, wherein the cyclone separator is disposed inside the spray gun head and is fixedly connected to the spray gun head;

[0010] A flow divider is located at the end of the cyclone separator and is fixedly connected to the cyclone separator.

[0011] According to the above-described pulverized coal spray nozzle structure, the spray nozzle tube includes a spray nozzle tube body and an acceleration tube body. The diameter of one end of the acceleration tube body is larger than the diameter of the other end. The end of the acceleration tube body with a smaller diameter is fixedly connected to the spray nozzle head, and the end of the acceleration tube body with a larger diameter is fixedly connected to the spray nozzle tube body.

[0012] According to the above-described pulverized coal spray nozzle structure, a flange is provided at the end of the spray nozzle tube away from the spray nozzle head, and the flange is fixedly connected to the spray nozzle head.

[0013] According to the above-described pulverized coal spray nozzle structure, the cyclone includes multiple cyclone vanes and a column. The multiple cyclone vanes are evenly arranged around the column and fixedly connected to the column. Each cyclone vane is fixedly connected to the inner wall of the spray nozzle.

[0014] According to the pulverized coal injection nozzle structure described above, the swirl vane is spiral-shaped.

[0015] According to the above-described pulverized coal injection nozzle structure, the cyclone includes 2 to 10 cyclone vanes, and the included angle between adjacent cyclone vanes is 30° to 180°.

[0016] According to the above-described pulverized coal injection nozzle structure, the thickness of the swirl vane is 10mm to 50mm, and the length of the swirl vane is 30mm to 80mm.

[0017] According to the above-described pulverized coal injection nozzle structure, the shape of the distributor is a truncated cone, and the top surface of the truncated cone is fixedly connected to the column.

[0018] According to the pulverized coal injection nozzle structure described above, the angle between the bottom surface of the truncated cone and the generatrix ranges from 30° to 60°.

[0019] According to the above-described pulverized coal spray nozzle structure, the spray nozzle has a hollow cylindrical structure and a pipe diameter of 30mm to 100mm.

[0020] The beneficial effects of the pulverized coal injection nozzle structure provided by this utility model are at least as follows:

[0021] The pulverized coal spray nozzle structure provided by this utility model is used to install on a pulverized coal spray nozzle. The pulverized coal spray nozzle with the pulverized coal spray nozzle structure is then inserted into a hot air furnace. The pulverized coal is divided by a hydrocyclone and then further divided and atomized by a distributor. The combined action of the hydrocyclone and the distributor can atomize large-particle-size pulverized coal ash, and the atomization angle of the pulverized coal is sufficient, so that the pulverized coal is fully combusted. This effectively improves the quality of the powder produced by the spray tower, increases the utilization rate of pulverized coal, reduces the energy consumption cost of the spray tower process, and thus reduces the production cost of enterprises, thereby enhancing the production competitiveness of enterprises. This is of great importance to existing ceramic enterprises. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1A three-dimensional structural schematic diagram of the pulverized coal injection nozzle structure provided by this utility model;

[0024] Figure 2 An exploded structural diagram of the pulverized coal injection nozzle structure provided by this utility model;

[0025] Figure 3 A three-dimensional structural diagram of the spray gun head, cyclone separator, and flow divider assembly provided by this utility model;

[0026] Figure 4 A front structural diagram of the spray gun head, cyclone separator, and flow divider assembly provided by this utility model;

[0027] Figure 5 A schematic diagram of the structure of the cyclone separator provided by this utility model.

[0028] The following are the labeling elements in the figure:

[0029] 100. Pulverized coal spray nozzle structure; 10. Spray nozzle pipe; 11. Spray nozzle pipe body; 12. Accelerator pipe body; 20. Spray nozzle head; 30. Hydrocyclone; 31. Hydrocyclone vane; 32. Column; 40. Diverter; 41. Top surface of truncated cone; 42. Bottom surface of truncated cone; 50. Flange. Detailed Implementation

[0030] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0031] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly located on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality of" means two or more, unless otherwise explicitly defined.

[0032] Please see Figure 1 and Figure 2This embodiment provides a pulverized coal spray gun head structure 100 for installation on a pulverized coal spray gun (not shown in the figure, the same below), which includes a spray gun pipe 10, a spray gun head 20, a cyclone separator 30 and a flow divider 40.

[0033] The spray gun tube 10 is connected to the pulverized coal spray gun. Optionally, a flange 50 is fixedly connected to the spray gun tube 10, and the spray gun tube 10 is connected to the pulverized coal spray gun through the flange 50, which facilitates disassembly and assembly.

[0034] The spray gun head 20 is disposed at one end of the spray gun tube 10 and is fixedly connected to the spray gun tube 10. Optionally, the spray gun head 20 is fixedly connected to the spray gun tube 10. Optionally, the spray gun head 20 is welded to the spray gun tube 10. It should be understood that the connection between the spray gun head 20 and the spray gun tube 10 is not limited to the welding method described above, and can be other connection methods, which are not limited here.

[0035] The cyclone separator 30 is disposed inside the spray gun head 20 and fixedly connected to the spray gun head 20. Optionally, the cyclone separator 30 is welded to the spray gun head 20. It should be understood that the connection between the cyclone separator 30 and the spray gun head 20 is not limited to the welding method described above, and can be other connection methods, which are not limited here.

[0036] The flow divider 40 is disposed at the end of the hydrocyclone 30 and fixedly connected to the hydrocyclone 30. Optionally, the flow divider 40 is welded to the hydrocyclone 30. It should be understood that the connection method between the flow divider 40 and the hydrocyclone 30 is not limited to the welding method described above, and other connection methods are possible, which are not limited here.

[0037] The pulverized coal spray nozzle structure 100 provided in this embodiment is installed on the pulverized coal spray nozzle. Then, the pulverized coal spray nozzle with the pulverized coal spray nozzle structure 100 is inserted into the hot air furnace. The pulverized coal is divided by the hydrocyclone 30 and then further divided and atomized by the distributor 40. The combined action of the hydrocyclone 30 and the distributor 40 can atomize large-particle-size pulverized coal ash, and the pulverized coal atomization angle is sufficient, so that the pulverized coal is fully burned. This effectively improves the quality of the powder produced by the spray tower, increases the utilization rate of pulverized coal, reduces the energy consumption cost of the spray tower process, and thus reduces the production cost of the enterprise, thereby enhancing the enterprise's production competitiveness. This is of great importance to existing ceramic enterprises.

[0038] In one embodiment, see Figure 1 and Figure 2The spray gun tube 10 includes a spray gun tube body 11 and an acceleration tube body 12. The diameter of one end of the acceleration tube body 12 is larger than the diameter of the other end. The smaller diameter end of the acceleration tube body 12 is fixedly connected to the spray gun head 20, which can be welded but is not limited to welding. The larger diameter end of the acceleration tube body 12 is fixedly connected to the spray gun tube body, which can be welded or integrally formed, but is not limited to the above connection methods. Setting the diameter of one end of the acceleration tube body 12 to be larger than the diameter of the other end, that is, the diameter of the acceleration tube body 12 gradually decreases from the larger diameter end to the smaller diameter end, can accelerate the flow rate of pulverized coal in the pipe, thereby ensuring the atomization effect of pulverized coal when it exits the gun.

[0039] Optionally, the spray gun nozzle 10 is L-shaped. It should be understood that the shape of the spray gun nozzle 10 is not limited to L-shape, and can be other shapes, which are not limited here.

[0040] In one embodiment, see Figure 3 The hydrocyclone 30 includes multiple swirl vanes 31 and a column 32. The multiple swirl vanes 31 are evenly arranged around the column 32 and fixedly connected to the column 32. It can be integrally formed, but is not limited to an integrally formed structure. Each swirl vane 31 is fixedly connected to the inner wall of the spray gun head 20, which can be a welded connection, but is not limited to a welded connection. The multiple swirl vanes 31 can atomize large-diameter fly ash particles, thereby improving the atomization effect of the fly ash.

[0041] In one embodiment, the swirl vane 31 is spiral-shaped. The spiral-shaped swirl vane 31 can further improve the atomization effect of fly ash.

[0042] In one embodiment, see Figure 4 The cyclone separator 30 includes 2 to 10 cyclone vanes 31, and the included angle α between adjacent cyclone vanes 31 is 30° to 180°.

[0043] Optionally, the cyclone separator 30 includes two cyclone vanes 31, and the included angle α between adjacent cyclone vanes 31 is 180°.

[0044] Optionally, the cyclone separator 30 includes 6 cyclone vanes 31, and the included angle α between adjacent cyclone vanes 31 is 60°.

[0045] Optionally, the cyclone separator 30 includes 10 cyclone vanes 31, and the included angle α between adjacent cyclone vanes 31 is 36°.

[0046] It should be understood that the number of swirl vanes 31 and the size of the included angle α between adjacent swirl vanes 31 are not limited to the above-described cases, but may be other cases, which are not limited here.

[0047] In one embodiment, the thickness of the swirl vane 31 is 10mm to 50mm, and the length of the swirl vane 31 is 30mm to 80mm.

[0048] Optionally, the thickness of the swirl vane 31 is 10 mm. Optionally, the thickness of the swirl vane 31 is 30 mm. Optionally, the thickness of the swirl vane 31 is 50 mm.

[0049] Optionally, the length of the swirl vane 31 is 30 mm. Optionally, the length of the swirl vane 31 is 50 mm. Optionally, the length of the swirl vane 1 is 80 mm.

[0050] It should be understood that the thickness and length of the swirl vane 31 are not limited to the above-mentioned cases, and may be other cases, which are not limited here.

[0051] In one embodiment, the distributor 40 is shaped like a truncated cone, and the top surface 41 of the truncated cone is fixedly connected to the column 32. Optionally, the top surface 41 of the truncated cone is welded to the column 32. It should be understood that the connection method between the top surface 41 of the truncated cone and the column 32 is not limited to welding, but can also be other methods, which are not limited here.

[0052] In one embodiment, see Figure 5 The angle β between the base surface 42 of the frustum and the generatrix ranges from 30° to 60°. Optionally, the angle β between the base surface 42 of the frustum and the generatrix ranges from 30°. Optionally, the angle β between the base surface 42 of the frustum and the generatrix ranges from 45°. Optionally, the angle β between the base surface 42 of the frustum and the generatrix ranges from 60°. It should be understood that the angle β between the base surface 42 of the frustum and the generatrix is ​​not limited to the above situations and can also be other situations, which are not limited here.

[0053] In one embodiment, the spray gun head 20 has a hollow cylindrical structure, and the diameter of the spray gun head 20 is 30mm to 100mm. Optionally, the diameter of the spray gun head 20 is 30mm. Optionally, the diameter of the spray gun head 20 is 60mm. Optionally, the diameter of the spray gun head 20 is 100mm. It should be understood that the diameter of the spray gun head 20 is not limited to the above situations, and other situations are also possible, which are not limited here.

[0054] In summary, this embodiment provides a pulverized coal spray nozzle structure 100 for installation on a pulverized coal spray nozzle, comprising a spray nozzle tube 10, a spray nozzle head 20, a cyclone separator 30, and a flow divider 40. The spray nozzle head 20 is located at one end of the spray nozzle tube 10 and is fixedly connected to the spray nozzle tube 10. The cyclone separator 30 is located inside the spray nozzle head 20 and is fixedly connected to the spray nozzle head 20. The flow divider 40 is located at the end of the cyclone separator 30 and is fixedly connected to the cyclone separator 30. The pulverized coal spray nozzle structure 100 provided in this embodiment is installed on the pulverized coal spray nozzle. Then, the pulverized coal spray nozzle with the pulverized coal spray nozzle structure 100 is inserted into the hot air furnace. The pulverized coal is divided by the hydrocyclone 30 and then further divided and atomized by the distributor 40. The combined action of the hydrocyclone 30 and the distributor 40 can atomize large-particle-size pulverized coal ash, and the pulverized coal atomization angle is sufficient, so that the pulverized coal is fully burned. This effectively improves the quality of the powder produced by the spray tower, increases the utilization rate of pulverized coal, reduces the energy consumption cost of the spray tower process, and thus reduces the production cost of the enterprise, thereby enhancing the enterprise's production competitiveness. This is of great importance to existing ceramic enterprises.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pulverized coal injection nozzle structure, characterized in that, include: Spray gun barrel; A spray gun head, wherein the spray gun head is disposed at one end of the spray gun tube and is fixedly connected to the spray gun tube; A cyclone separator, wherein the cyclone separator is disposed inside the spray gun head and is fixedly connected to the spray gun head; A flow divider is located at the end of the cyclone separator and is fixedly connected to the cyclone separator.

2. The pulverized coal injection nozzle structure according to claim 1, characterized in that, The spray gun tube includes a spray gun tube body and an acceleration tube body. The diameter of one end of the acceleration tube body is larger than the diameter of the other end. The smaller diameter end of the acceleration tube body is fixedly connected to the spray gun head, and the larger diameter end of the acceleration tube body is fixedly connected to the spray gun tube body.

3. The pulverized coal injection nozzle structure according to claim 1, characterized in that, The end of the spray gun tube away from the spray gun head is provided with a flange, and the flange is fixedly connected to the spray gun head.

4. The pulverized coal injection nozzle structure according to claim 1, characterized in that, The cyclone separator includes multiple cyclone vanes and a column. The multiple cyclone vanes are evenly arranged around the column and fixedly connected to the column. Each cyclone vane is fixedly connected to the inner wall of the spray gun head.

5. The pulverized coal injection nozzle structure according to claim 4, characterized in that, The swirl vanes are spiral-shaped.

6. The pulverized coal injection nozzle structure according to claim 4, characterized in that, The cyclone separator includes 2 to 10 cyclone vanes, with an included angle of 30° to 180° between adjacent cyclone vanes.

7. The pulverized coal injection nozzle structure according to claim 4, characterized in that, The thickness of the swirl vane is 10mm to 50mm, and the length of the swirl vane is 30mm to 80mm.

8. The pulverized coal injection nozzle structure according to claim 4, characterized in that, The distributor is shaped like a truncated cone, and the top surface of the truncated cone is fixedly connected to the column.

9. The pulverized coal injection nozzle structure according to claim 8, characterized in that, The angle between the base of the truncated cone and the generatrix ranges from 30° to 60°.

10. The pulverized coal injection nozzle structure according to claim 1, characterized in that, The spray gun head has a hollow cylindrical structure, and the diameter of the spray gun head is 30mm to 100mm.

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