Gasification furnace coal slurry nozzle with adjustable injection angle

Abstract

The utility model discloses a gasification furnace coal slurry nozzle with an adjustable injection angle, which comprises a nozzle body, the nozzle body is matched and connected with any one of an injection angle adjusting component and an oven component, the nozzle body comprises a central pipeline, the outer side of the central pipeline is coaxially sleeved with at least one nozzle outer pipe, and the nozzle outer pipe is provided with a nozzle hole. The nozzle outer pipes are sequentially arranged in a sleeved mode from inside to outside in the diameter direction of the center pipeline, and the center pipeline is connected with any one of the spraying angle adjusting component and the oven component in a matched mode. The injection angle can be adjusted through the injection angle adjusting component, so that materials are uniformly distributed in the gasification furnace, the gasification reaction is optimized, and the problem that the materials are not uniformly distributed in the furnace due to the fact that the injection angle of the gasification furnace cannot be adjusted is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of gasifier nozzles, and relates to a gasifier coal slurry nozzle with adjustable injection angle. Background Art

[0002] In existing technology, the oven nozzle and production nozzle are two separate units. Therefore, they must be physically switched during startup. However, switching nozzles often needs to be done quickly in harsh environments with high temperatures and pressures, which is risky and labor-intensive. Furthermore, the process burners need to be installed within a limited timeframe, and multiple large flanges need to be tightened, which can easily lead to leakage risks.

[0003] In addition, the atomization angle of traditional nozzles is fixed and cannot be adjusted according to real-time working conditions. When the nozzle injection pattern needs to be finely controlled, the inability to adjust the injection angle of the gasifier may lead to uneven distribution of materials in the furnace, thereby affecting the uniformity and thoroughness of the gasification reaction. Utility Model Content

[0004] The utility model aims to provide a coal slurry nozzle for a gasifier with an adjustable injection angle, thereby solving the problem in the prior art that the injection angle of the gasifier cannot be adjusted.

[0005] The technical solution adopted by the present invention is a coal slurry nozzle for a gasifier with an adjustable injection angle, comprising a burner body, which is matched with and connected to any one of an injection angle adjustment component and a furnace drying component. The burner body comprises a central pipe, and a nozzle outer tube is coaxially sleeved on the outer side of the central pipe. There is at least one nozzle outer tube, and the nozzle outer tubes are arranged in sequence from the inside to the outside along the diameter direction of the central pipe. The central pipe is matched with and connected to any one of the injection angle adjustment component and the furnace drying component.

[0006] The utility model is also characterized in that:

[0007] An annular gap channel is provided between the nozzle outer tube and the central pipe, as well as between two adjacent nozzle outer tubes. The nozzle outer tube includes an outer tube body, one end of the outer tube body is provided with an outer tube connecting flange, and the other end of the outer tube body is provided with a tapered mouth. The cross-sectional diameter of the tapered mouth decreases successively along the jet direction. A cooling coil is provided on the outer wall of the outermost tapered mouth. The cooling coil is spirally distributed on the outer wall of the outermost tapered mouth. A gasifier connecting flange is also provided on the outer side wall of the outer tube body of the outermost layer. The position of the gasifier connecting flange is between the outer tube connecting flange and the tapered mouth. An annular gap bypass pipe connected to the outside world is provided on the side wall of each outer tube body, and a central pipe is sleeved inside the innermost outer tube body.

[0008] The central pipe includes a central pipe body, one end of the central pipe body is provided with a first connecting flange, and the other end of the central pipe body is provided with a scaling mouth, the cross-sectional diameter of the scaling mouth decreases first and then increases in the jet direction, the scaling mouth is wrapped inside the tapered mouth, and a gap is provided between the scaling mouth and the tapered mouth, a central pipe connecting flange is provided on the outer wall of the central pipe body, the position of the central pipe connecting flange is located between the first connecting flange and the scaling mouth, the central pipe connecting flange is matched and connected with the outer pipe connecting flange, and a central bypass pipe connected to the outside world is also provided on the side wall of the central pipe body.

[0009] The spray angle adjustment component includes a nozzle adjustment rod, which is coaxially sleeved on the inner side of the central pipe. An adjustment head is provided at one end of the nozzle adjustment rod, and the adjustment head is located at the port of the zoom port. A length adjustment handle is provided at the other end of the nozzle adjustment rod. A second connecting flange is provided on the rod body of the nozzle adjustment rod. The position of the second connecting flange is located between the length adjustment handle and the adjustment head, and the second connecting flange is matched with the first connecting flange.

[0010] The cross section of the regulating head is any one of a triangle and a rhombus.

[0011] The oven component comprises an air pipe, which is coaxially sleeved inside the central pipe, a fuel delivery pipe is coaxially sleeved inside the air pipe, and an air annular gap channel is provided between the air pipe and the fuel delivery pipe.

[0012] One end of the air pipe is coaxially sleeved inside the central pipe and the end of the air pipe is placed at the port of the expansion port. The other end of the air pipe is provided with an air pipe connecting flange. The pipe body of the air pipe is provided with a third connecting flange. The third connecting flange is matched and connected to the first connecting flange. The pipe body of the air pipe is also provided with an ignition channel and an air bypass pipe respectively. An ignition device is provided in the telephone channel, and the air bypass pipe is connected to the outside world.

[0013] One end of the fuel delivery pipe is coaxially sleeved inside the air pipe, and the other end of the fuel pipe is provided with a flame detection device. A fuel pipe connecting flange is provided on the pipe body of the fuel delivery pipe, and the fuel pipe connecting flange is matched with the air pipe connecting flange. A fuel bypass pipe is also provided on the pipe body of the fuel delivery pipe.

[0014] The ignition device is connected with the ignition tube, and the ignition tube is sleeved inside the fuel delivery tube.

[0015] The beneficial effects of the utility model are:

[0016] The utility model discloses a coal slurry nozzle for a gasifier with adjustable injection angle, which adjusts the injection angle by setting an adjusting head, and cooperates with the tapered mouth to make the material evenly distributed in the furnace, effectively solving the problem that the injection angle of the gasifier cannot be adjusted, resulting in uneven distribution of the material in the furnace; at the same time, the device is connected to any one of the injection angle adjusting component and the drying furnace component through a central channel tube. When the drying furnace state is switched to the production state, it is only necessary to replace the injection angle adjusting component and the drying furnace component without replacing the burner body. The operation is simple and the risk of operation in a harsh environment of high temperature and high pressure is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the coal slurry nozzle for a gasifier with adjustable injection angle according to the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the nozzle outer tube of the coal slurry nozzle of the gasifier with adjustable injection angle according to the utility model;

[0019] Figure 3 This is a schematic structural diagram of the central pipe in the coal slurry nozzle of the gasifier with adjustable injection angle according to the utility model;

[0020] Figure 4 This is a structural diagram of the zoom port in the coal slurry nozzle of the gasifier with adjustable injection angle according to the utility model;

[0021] Figure 5 The utility model is a structural schematic diagram of the injection angle adjustment component of the coal slurry nozzle of the gasifier with adjustable injection angle.

[0022] Figure 6 This is a structural diagram of the regulating head of the coal slurry nozzle of the gasifier with adjustable injection angle according to the utility model;

[0023] Figure 7 This is a structural diagram of the furnace drying component in the coal slurry nozzle of the gasifier with adjustable injection angle according to the utility model;

[0024] Figure 8 The utility model is a schematic diagram of the internal structure of a furnace drying component in a coal slurry nozzle of a gasifier with adjustable injection angle.

[0025] In the figure, 1. nozzle outer tube, 101. outer tube connecting flange, 102. tapered port, 103. cooling coil, 104. gasifier connecting flange, 105. annular gap bypass pipe;

[0026] 2. Central pipe, 201. First connecting flange, 202. Zoom port, 203. Central pipe connecting flange, 204. Central bypass pipe;

[0027] 3. Spray angle adjustment component, 301. Nozzle adjustment rod, 302. Adjustment head, 303. Length adjustment handle, 304. Second connecting flange;

[0028] 4. Oven components, 401. Air pipe, 402. Air pipe connecting flange, 403. Third connecting flange, 404. Ignition channel, 405. Air bypass pipe, 406. Fuel delivery pipe, 407. Flame detection device, 408. Fuel pipe connecting flange, 409. Fuel bypass pipe, 410. Pilot pipe;

[0029] 5. Annular channel. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0031] The utility model discloses a coal slurry nozzle for a gasifier with adjustable injection angle. Figure 1 As shown, it includes a burner body, which is matched with any one of the injection angle adjustment component 3 and the drying furnace component 4. The burner body includes a central pipe 2, which is used to guide oxygen into the gasifier. The outer side of the central pipe 2 is coaxially sleeved with a nozzle outer pipe 1. There is at least one nozzle outer pipe 1, and the nozzle outer pipes 1 are stacked in sequence from the inside to the outside along the diameter direction of the central pipe 2. An annular gap channel 5 is provided between the nozzle outer pipe 1 and the central pipe 2, and between two adjacent nozzle outer pipes 1. The annular gap channel 5 between the nozzle outer pipe 1 and the central pipe 2 is used to transport coal slurry. The annular gap channel 5 between two adjacent nozzle outer pipes 1 can be used to guide oxygen into the gasifier to ensure that the coal slurry and oxygen are fully mixed. The central pipe is matched with any one of the injection angle adjustment component 3 and the drying furnace component 4. During the production stage, the injection angle can be adjusted by the injection angle adjustment component 3, so that the material is evenly distributed in the gasifier to optimize the gasification reaction, effectively solving the problem that the injection angle of the gasifier cannot be adjusted, resulting in uneven distribution of materials in the furnace. The baking furnace component 4 is used to ignite and preheat the gasifier during the baking furnace stage. It is connected to the injection angle adjustment component 3 and any one of the baking furnace components 4 through the central pipe. When the baking furnace state is switched to the production state, only the injection angle adjustment component 3 and the baking furnace component 4 need to be replaced, and there is no need to replace the burner body. The operation is simple and avoids the risk of operation in a harsh environment of high temperature and high pressure.

[0032] Nozzle outer tube 1 Figure 2As shown, the nozzle outer tube 1 includes an outer tube body, one end of the outer tube body is provided with an outer tube connecting flange 101, and the other end of the outer tube body is provided with a tapered opening 102, the cross-sectional diameter of the tapered opening 102 decreases in sequence along the jet direction, and the design of the tapered opening 102 can make the material re-export fully mixed with the oxygen in the central pipe 2, and a cooling coil 103 is provided on the outer wall of the outermost tapered opening 102, and the cooling coil 103 is spirally distributed on the outer wall of the outermost tapered opening 102, and cooling water is passed through the cooling coil 103 to cool the tapered opening 102. A gasifier connecting flange 104 is also provided on the outer side wall of the outer tube body located in the outermost layer. The gasifier connecting flange 104 is located between the outer tube connecting flange 101 and the tapered opening 102. The nozzle outer tube 1 can be sealed and connected to the gasifier through the gasifier connecting flange 104. An annular gap bypass pipe 105 connected to the outside is provided on the side wall of each outer tube body. Materials can be transported into each annular gap channel 5 through the annular gap bypass pipe 105. A central pipe 2 is sleeved on the inner side of the outer tube body located in the innermost layer. The central pipe 2 is used to guide oxygen into the gasifier.

[0033] Central pipe 2, such as Figure 3 and Figure 4 As shown, the central pipe 2 includes a central pipe body, one end of which is provided with a first connecting flange 201, and the other end of the central pipe body is provided with a convergent opening 202. The cross-sectional diameter of the convergent opening 202 decreases and then increases along the jet direction. The convergent opening 202 is wrapped inside the tapered opening 102, and a gap is provided between the convergent opening 202 and the convergent opening 102. The convergent opening 202 can accommodate the air pipe 401 to achieve ignition and furnace operation during the furnace drying stage. During the production stage, an adjustment head 302 can be inserted to adjust the injection angle, and the convergent opening 102 cooperates with the convergent opening 102 to ensure uniform distribution of materials within the furnace. A central pipe connecting flange 203 is provided on the outer wall of the central pipe body. The central pipe connecting flange 203 is located between the first connecting flange 201 and the convergent opening 202. The central pipe connecting flange 203 is matched and connected to the outer pipe connecting flange 101, thereby sealingly connecting the central pipe 2 to the nozzle outer pipe 1. A central bypass pipe 204 is also provided on the side wall of the central pipe body to communicate with the outside world.

[0034] The spray angle adjustment component 3, such as Figure 5 and Figure 6As shown, the spray angle adjustment component 3 includes a nozzle adjustment rod 301, which is coaxially sleeved on the inner side of the central pipe 2. An adjustment head 302 is provided at one end of the nozzle adjustment rod 301. The adjustment head 302 is located at the end of the zoom port 202. The adjustment head 302 is inserted into the zoom port 202 and the tapered port 102. According to the different insertion depths, the angles formed between the surface of the adjustment head 302 and the surface of the inserted zoom port 202, as well as the surface of the tapered port 102, will change accordingly, thereby achieving the purpose of adjusting the spray angle. A length adjustment handle 303 is provided at the other end of the nozzle adjustment rod 301, which can be adjusted by the length adjustment handle 303. The adjusting head 302 is inserted into the depth of the scaling opening 202 and the tapered opening 102 to adjust the injection angle. A second connecting flange 304 is provided on the rod body of the nozzle adjusting rod 301. The position of the second connecting flange 304 is located between the length adjustment handle 303 and the adjusting head 302. The second connecting flange 304 is matched with the first connecting flange 201 and connected. The injection angle adjustment component 3 can be sealed with the central pipe 2. The injection angle is adjusted by setting the adjusting head 302, and the material is evenly distributed in the furnace by cooperating with the tapered opening 102, which effectively solves the problem that the injection angle of the gasification furnace cannot be adjusted, resulting in uneven distribution of materials in the furnace.

[0035] The cross section of the regulating head 302 is either a triangle or a rhombus. By setting the cross section of the regulating head 302 to a triangle or a rhombus, the airflow flowing through the regulating head 302 can generate a tangential velocity, change the direction of the airflow, and thus change the nozzle spray angle.

[0036] Oven components 4, such as Figure 7 and Figure 8 As shown, the oven component 4 includes an air pipe 401, which is coaxially sleeved inside the central pipe 2. A fuel delivery pipe 406 is coaxially sleeved inside the air pipe 401. An air annular gap channel is provided between the air pipe 401 and the fuel delivery pipe 406, and compressed air required for combustion in the preheating stage is transported through the air annular gap channel.

[0037] One end of the air pipe 401 is coaxially sleeved inside the central pipe 2 and the end of the air pipe 401 is placed at the port of the expansion port 202. The other end of the air pipe 401 is provided with an air pipe connecting flange 402. The tube body of the air pipe 401 is provided with a third connecting flange 403. The third connecting flange 403 is matched with the first connecting flange 201 and can seal the oven component 4 with the central pipe 2. The tube body of the air pipe 401 is also provided with an ignition channel 404 and an air bypass pipe 405. An ignition device is provided in the ignition channel 404, and the fuel delivered by the fuel delivery pipe 406 is ignited by the ignition device. The air bypass pipe 405 is connected to the outside world and is used to deliver compressed air from the outside to the air annular gap channel.

[0038] One end of the fuel delivery pipe 406 is coaxially sleeved inside the air pipe 401. The fuel delivery pipe 406 is used to transport fuel gas in the ignition stage. The other end of the fuel pipe is provided with a flame detection device 407. A fuel pipe connecting flange 408 is provided on the pipe body of the fuel delivery pipe. The fuel pipe connecting flange 408 is matched with the air pipe connecting flange 402 to ensure that the fuel delivery pipe 406 and the air pipe 401 are sealed. A fuel bypass pipe 409 is also provided on the pipe body of the fuel delivery pipe.

[0039] The ignition device is connected to the ignition tube 410, and the ignition tube 410 is sleeved inside the fuel delivery tube 406. The ignition tube 410 plays an ignition role.

[0040] The working principle of the coal slurry nozzle for gasification furnace with adjustable injection angle of the utility model is as follows:

[0041] During the furnace baking stage, the air pipe 401 in the furnace baking component 4 is inserted into the central pipe 2, the third connecting flange 403 is matched and connected with the first connecting flange 201, the fuel is introduced into the gasification furnace through the fuel delivery pipe 406, and then the fuel is ignited by the ignition device to realize the preheating of the gasification furnace.

[0042] During the production stage, the baking furnace component 4 is replaced, and the nozzle adjustment rod 301 of the injection angle adjustment component 3 is inserted into the central pipe 2. The second connecting flange 304 is matched and connected with the first connecting flange 201, and the adjustment head 302 is inserted into the scaling port 202 and the tapered port 102. According to the insertion depth, the angle formed between the surface of the adjustment head 302 and the surface of the inserted scaling port 202, as well as the surface of the tapered port 102 will change accordingly, so as to achieve the purpose of adjusting the injection angle. The depth of the adjustment head 302 inserted into the scaling port 202 and the tapered port 102 can be adjusted through the length adjustment handle 303 to adjust the injection angle.

[0043] The specific embodiments of the present utility model are as follows:

[0044] Example 1

[0045] A coal slurry nozzle for a gasifier with an adjustable injection angle includes a burner body, which is matched with an injection angle adjustment component 3 and a furnace drying component 4. The burner body includes a central pipe 2, and a nozzle outer tube 1 is coaxially sleeved on the outer side of the central pipe 2. There is at least one nozzle outer tube 1, and the nozzle outer tubes 1 are arranged in sequence from the inside to the outside along the diameter direction of the central pipe 2. The central pipe is matched with an injection angle adjustment component 3 and a furnace drying component 4.

[0046] An annular gap channel 5 is provided between the nozzle outer tube 1 and the central pipe 2, as well as between two adjacent nozzle outer tubes 1. The nozzle outer tube 1 includes an outer tube body, one end of the outer tube body is provided with an outer tube connecting flange 101, and the other end of the outer tube body is provided with a tapered opening 102. The cross-sectional diameter of the tapered opening 102 decreases successively along the jet direction. A cooling coil 103 is provided on the outer wall of the outermost tapered opening 102. The cooling coil 103 is spirally distributed on the outer wall of the outermost tapered opening 102. A gasifier connecting flange 104 is also provided on the outer side wall of the outer tube body. The gasifier connecting flange 104 is located between the outer tube connecting flange 101 and the tapered opening 102. An annular gap bypass pipe 105 connected to the outside is provided on the side wall of each outer tube body. The central pipe 2 is sleeved inside the innermost outer tube body.

[0047] The central pipe 2 includes a central pipe body, one end of which is provided with a first connecting flange 201, and the other end of the central pipe body is provided with a scaling opening 202. The cross-sectional diameter of the scaling opening 202 decreases first and then increases in the jet direction. The scaling opening 202 is wrapped inside the tapered opening 102. There is a gap between the scaling opening 202 and the tapered opening 102. A central pipe connecting flange 203 is provided on the outer wall of the central pipe body. The position of the central pipe connecting flange 203 is located between the first connecting flange 201 and the scaling opening 202. The central pipe connecting flange 203 is matched and connected to the outer pipe connecting flange 101. A central bypass pipe 204 connected to the outside is also provided on the side wall of the central pipe body.

[0048] Example 2

[0049] A coal slurry nozzle for a gasifier with an adjustable injection angle includes a burner body, which is matched with an injection angle adjustment component 3 and a furnace drying component 4. The burner body includes a central pipe 2, and a nozzle outer tube 1 is coaxially sleeved on the outer side of the central pipe 2. There is at least one nozzle outer tube 1, and the nozzle outer tubes 1 are arranged in sequence from the inside to the outside along the diameter direction of the central pipe 2. The central pipe is matched with an injection angle adjustment component 3 and a furnace drying component 4.

[0050] An annular gap channel 5 is provided between the nozzle outer tube 1 and the central pipe 2, as well as between two adjacent nozzle outer tubes 1. The nozzle outer tube 1 includes an outer tube body, one end of the outer tube body is provided with an outer tube connecting flange 101, and the other end of the outer tube body is provided with a tapered opening 102. The cross-sectional diameter of the tapered opening 102 decreases successively along the jet direction. A cooling coil 103 is provided on the outer wall of the outermost tapered opening 102. The cooling coil 103 is spirally distributed on the outer wall of the outermost tapered opening 102. A gasifier connecting flange 104 is also provided on the outer side wall of the outer tube body. The gasifier connecting flange 104 is located between the outer tube connecting flange 101 and the tapered opening 102. An annular gap bypass pipe 105 connected to the outside is provided on the side wall of each outer tube body. The central pipe 2 is sleeved inside the innermost outer tube body.

[0051] The central pipe 2 includes a central pipe body, one end of which is provided with a first connecting flange 201, and the other end of the central pipe body is provided with a scaling opening 202. The cross-sectional diameter of the scaling opening 202 decreases first and then increases in the jet direction. The scaling opening 202 is wrapped inside the tapered opening 102. There is a gap between the scaling opening 202 and the tapered opening 102. A central pipe connecting flange 203 is provided on the outer wall of the central pipe body. The position of the central pipe connecting flange 203 is located between the first connecting flange 201 and the scaling opening 202. The central pipe connecting flange 203 is matched and connected to the outer pipe connecting flange 101. A central bypass pipe 204 connected to the outside is also provided on the side wall of the central pipe body.

[0052] The spray angle adjustment component 3 includes a nozzle adjustment rod 301, which is coaxially sleeved on the inner side of the central pipe 2. An adjustment head 302 is provided at one end of the nozzle adjustment rod 301, and the adjustment head 302 is located at the port of the expansion port 202. A length adjustment handle 303 is provided at the other end of the nozzle adjustment rod 301. A second connecting flange 304 is provided on the rod body of the nozzle adjustment rod 301. The position of the second connecting flange 304 is located between the length adjustment handle 303 and the adjusting head 302. The second connecting flange 304 is matched and connected with the first connecting flange 201.

[0053] Example 3

[0054] A coal slurry nozzle for a gasifier with an adjustable injection angle includes a burner body, which is matched with an injection angle adjustment component 3 and a furnace drying component 4. The burner body includes a central pipe 2, and a nozzle outer tube 1 is coaxially sleeved on the outer side of the central pipe 2. There is at least one nozzle outer tube 1, and the nozzle outer tubes 1 are arranged in sequence from the inside to the outside along the diameter direction of the central pipe 2. The central pipe is matched with an injection angle adjustment component 3 and a furnace drying component 4.

[0055] An annular gap channel 5 is provided between the nozzle outer tube 1 and the central pipe 2, as well as between two adjacent nozzle outer tubes 1. The nozzle outer tube 1 includes an outer tube body, one end of the outer tube body is provided with an outer tube connecting flange 101, and the other end of the outer tube body is provided with a tapered opening 102. The cross-sectional diameter of the tapered opening 102 decreases successively along the jet direction. A cooling coil 103 is provided on the outer wall of the outermost tapered opening 102. The cooling coil 103 is spirally distributed on the outer wall of the outermost tapered opening 102. A gasifier connecting flange 104 is also provided on the outer side wall of the outer tube body. The gasifier connecting flange 104 is located between the outer tube connecting flange 101 and the tapered opening 102. An annular gap bypass pipe 105 connected to the outside is provided on the side wall of each outer tube body. The central pipe 2 is sleeved inside the innermost outer tube body.

[0056] The central pipe 2 includes a central pipe body, one end of which is provided with a first connecting flange 201, and the other end of the central pipe body is provided with a scaling opening 202. The cross-sectional diameter of the scaling opening 202 decreases first and then increases in the jet direction. The scaling opening 202 is wrapped inside the tapered opening 102. There is a gap between the scaling opening 202 and the tapered opening 102. A central pipe connecting flange 203 is provided on the outer wall of the central pipe body. The position of the central pipe connecting flange 203 is located between the first connecting flange 201 and the scaling opening 202. The central pipe connecting flange 203 is matched and connected to the outer pipe connecting flange 101. A central bypass pipe 204 connected to the outside is also provided on the side wall of the central pipe body.

[0057] The spray angle adjustment component 3 includes a nozzle adjustment rod 301, which is coaxially sleeved on the inner side of the central pipe 2. An adjustment head 302 is provided at one end of the nozzle adjustment rod 301, and the adjustment head 302 is located at the port of the expansion port 202. A length adjustment handle 303 is provided at the other end of the nozzle adjustment rod 301. A second connecting flange 304 is provided on the rod body of the nozzle adjustment rod 301. The position of the second connecting flange 304 is located between the length adjustment handle 303 and the adjusting head 302. The second connecting flange 304 is matched and connected with the first connecting flange 201.

[0058] The cross section of the adjustment head 302 is either a triangle or a rhombus.

[0059] The oven component 4 includes an air pipe 401 , which is coaxially sleeved inside the central pipe 2 . A fuel delivery pipe 406 is coaxially sleeved inside the air pipe 401 , and an air annular gap channel is provided between the air pipe 401 and the fuel delivery pipe 406 .

[0060] One end of the air pipe 401 is coaxially sleeved inside the central pipe 2 and the end of the air pipe 401 is placed at the end of the expansion port 202. The other end of the air pipe 401 is provided with an air pipe connecting flange 402. A third connecting flange 403 is provided on the tube body of the air pipe 401. The third connecting flange 403 is matched and connected with the first connecting flange 201. The tube body of the air pipe 401 is also provided with an ignition channel 404 and an air bypass pipe 405. An ignition device is provided in the ignition channel, and the air bypass pipe 405 is connected to the outside world.

[0061] One end of the fuel delivery pipe 406 is coaxially sleeved inside the air pipe 401, and the other end of the fuel pipe is provided with a flame detection device 407. A fuel pipe connecting flange 408 is provided on the pipe body of the fuel delivery pipe, and the fuel pipe connecting flange 408 is matched and connected with the air pipe connecting flange 402. A fuel bypass pipe 409 is also provided on the pipe body of the fuel delivery pipe.

[0062] The ignition device is connected to the ignition tube 410 , and the ignition tube 410 is sleeved inside the fuel delivery tube 406 .

Claims

1. The coal slurry nozzle of the gasifier with adjustable injection angle is characterized by: The burner body comprises a burner body, wherein the burner body is matched with any one of the injection angle adjustment component (3) and the drying furnace component (4), the burner body comprises a central pipe (2), the outer side of the central pipe (2) is coaxially sleeved with a nozzle outer pipe (1), there is at least one nozzle outer pipe (1), and the nozzle outer pipes (1) are arranged in sequence from the inside to the outside along the diameter direction of the central pipe (2), and the central pipe (2) is matched with any one of the injection angle adjustment component (3) and the drying furnace component (4).

2. The coal slurry nozzle for gasification furnace with adjustable injection angle according to claim 1, characterized in that: An annular gap channel (5) is provided between the nozzle outer tube (1) and the central pipe (2), and between two adjacent nozzle outer tubes (1). The nozzle outer tube (1) comprises an outer tube body, one end of the outer tube body is provided with an outer tube connecting flange (101), and the other end of the outer tube body is provided with a tapered opening (102). The cross-sectional diameter of the tapered opening (102) decreases successively along the jet direction. A cooling coil (103) is provided on the outer wall of the outermost tapered opening (102). The cooling coil (103) is distributed in a spiral shape on the outer wall of the outermost tapered opening (102), and a gasifier connecting flange (104) is also provided on the outer side wall of the outer tube body located in the outermost layer. The gasifier connecting flange (104) is located between the outer tube connecting flange (101) and the tapered opening (102). An annular gap bypass pipe (105) connected to the outside is provided on the side wall of each outer tube body, and a central pipe (2) is sleeved inside the outer tube body located in the innermost layer.

3. The coal slurry nozzle for gasification furnace with adjustable injection angle according to claim 2, characterized in that: The central pipe (2) comprises a central pipe body, one end of the central pipe body is provided with a first connecting flange (201), the other end of the central pipe body is provided with a scaling opening (202), the cross-sectional diameter of the scaling opening (202) first decreases and then increases in the jet direction, the scaling opening (202) is wrapped inside the tapered opening (102), a gap is provided between the scaling opening (202) and the tapered opening (102), a central pipe connecting flange (203) is provided on the outer wall of the central pipe body, the central pipe connecting flange (203) is located between the first connecting flange (201) and the scaling opening (202), the central pipe connecting flange (203) is matched and connected with the outer pipe connecting flange (101), and a central bypass pipe (204) connected to the outside is also provided on the side wall of the central pipe body.

4. The coal slurry nozzle for gasification furnace with adjustable injection angle according to claim 3, characterized in that: The spray angle adjustment component (3) includes a nozzle adjustment rod (301), the nozzle adjustment rod (301) is coaxially sleeved on the inner side of the central pipe (2), one end of the nozzle adjustment rod (301) is provided with an adjustment head (302), the adjustment head (302) is located at the end of the expansion port (202), the other end of the nozzle adjustment rod (301) is provided with a length adjustment handle (303), the rod body of the nozzle adjustment rod (301) is provided with a second connecting flange (304), the position of the second connecting flange (304) is located between the length adjustment handle (303) and the adjustment head (302), and the second connecting flange (304) is matched with the first connecting flange (201).

5. The coal slurry nozzle for gasification furnace with adjustable injection angle according to claim 4, characterized in that: The cross section of the regulating head (302) is any one of a triangle and a rhombus.

6. The coal slurry nozzle for gasification furnace with adjustable injection angle according to claim 4, characterized in that: The oven component (4) comprises an air pipe (401), the air pipe (401) being coaxially sleeved inside the central pipe (2), a fuel delivery pipe (406) being coaxially sleeved inside the air pipe (401), and an air annular gap channel being provided between the air pipe (401) and the fuel delivery pipe (406).

7. The coal slurry nozzle for gasification furnace with adjustable injection angle according to claim 6, characterized in that: One end of the air pipe (401) is coaxially sleeved inside the central pipe (2) and the end of the air pipe (401) is placed at the port of the expansion port (202); the other end of the air pipe (401) is provided with an air pipe connecting flange (402); a third connecting flange (403) is provided on the pipe body of the air pipe (401); the third connecting flange (403) is matched and connected to the first connecting flange (201); an ignition channel (404) and an air bypass pipe (405) are also provided on the pipe body of the air pipe (401); an ignition device is provided in the ignition channel, and the air bypass pipe (405) is connected to the outside; One end of the fuel delivery pipe (406) is coaxially sleeved inside the air pipe (401), and the other end of the fuel delivery pipe (406) is provided with a flame detection device (407). A fuel pipe connecting flange (408) is provided on the pipe body of the fuel delivery pipe, and the fuel pipe connecting flange (408) is matched and connected to the air pipe connecting flange (402). A fuel bypass pipe (409) is also provided on the pipe body of the fuel delivery pipe.

8. The coal slurry nozzle for gasification furnace with adjustable injection angle according to claim 7, characterized in that: The ignition device is connected to a ignition tube (410), and the ignition tube (410) is sleeved inside the fuel delivery tube (406).

Images