Combustor for combusting waste gas and waste liquid in coal chemical industry

Abstract

The utility model belongs to the technical field of combustors, and particularly relates to a combustor for combusting waste gas and waste liquid in the coal chemical industry, which is characterized in that a direct injection type round hole nozzle can inject waste gas or / and waste liquid into a hearth far away from the nozzle, and the waste gas and waste liquid are combusted in the hearth far away from the nozzle, so that mutual barbecue among the nozzles is effectively avoided, and the combustion efficiency is improved. The temperature of the nozzle is also reduced, so that the combustor can stably operate for a long time; in addition, the waste gas pipe, the waste liquid pipe and the natural gas pipe are uniformly arranged at intervals, so that waste gas and waste liquid can be fully combusted under the ignition of natural gas, the stable combustion of the waste gas and waste liquid is further ensured, and the overheating furnace can stably operate for a long time.

Description

Technical Field

[0001] The utility model belongs to the technical field of burners, in particular to a burner for burning waste gas and waste liquid in coal chemical industry. Background Art

[0002] Ethylene glycol is an important organic chemical raw material, mainly used in the production of polyester series products and automotive antifreeze, and can also be used as a surfactant, deicer and chemical intermediate. Due to its dihydroxyl and active chemical properties, it is widely used in the chemical industry. The coal-to-ethylene glycol process uses coal as raw material. According to different process flows, it can be divided into three types: direct method, oxalate method and olefin method. However, no matter which process technology is used, the coal must be gasified, transformed and purified to obtain synthesis gas to finally generate ethylene glycol. The three process routes of coal-to-ethylene glycol will generate waste gas and waste liquid in the production process. The waste gas is mainly produced from PSA tail gas, methanol distillation tail gas, and DMO section MN regeneration tower tail gas. The waste liquid is mainly produced from the MF waste liquid at the top of the MF separation tower in the DMO distillation section and the MF light fraction waste liquid at the top of the delightening tower in the DMC recovery section. These waste gases and waste liquids contain hydrogen, carbon monoxide, methane, MN (methyl nitrite), MF (methyl formate), ML (dimethoxymethane), ME (methanol), DMC (dimethyl carbonate), nitrogen oxides (NOX), DMC (dimethyl carbonate) and other substances. Many harmful substances.

[0003] The existing technology is to send these waste gases and waste liquids to the superheater for incineration. The burner is an important component on the superheater that mixes the waste gases and waste liquids with air, which is crucial for the long-term stable combustion of the waste gases and waste liquids in the superheater. The burner of the existing technology is made of carbon steel and adopts a side-spraying type. The waste gases and waste liquids are sprayed out from the side of the nozzle for combustion. Since the waste gases and waste liquids generated by the coal-to-ethylene glycol device have different sources and are dispersed, complex in composition, and have different calorific values, they are also flammable, explosive, corrosive, and easy to decompose. These waste gases and waste liquids are sprayed out from the side and burned to produce different flame temperatures. In addition, the power of the spraying causes adjacent nozzles to burn each other and be damaged. The superheater cannot achieve long-term stable operation, forcing it to stop for maintenance, while affecting the safe and stable operation of the coal-to-ethylene glycol device. Utility Model Content

[0004] Based on the problems of the prior art, the utility model provides a burner for burning waste gas and waste liquid in coal chemical industry. The nozzle of the burner adopts a direct injection type. The direct injection nozzle can spray the waste gas and waste liquid into a furnace far away from the nozzle. The waste gas and waste liquid burn in the furnace far away from the nozzle, which effectively avoids mutual burning between the nozzles and reduces the temperature of the nozzle, so that the burner can operate stably for a long time.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A burner for burning waste gas and waste liquid in a coal chemical industry, comprising an outer shell, an inner shell and an exhaust gas distribution device, wherein the outer shell and the inner shell are both cylindrical, one end of the outer shell cylinder is closed and the other end is open, and both ends of the inner shell cylinder are open, one end is an inlet end, and the other end is an outlet end; the open end of the outer shell is connected to the inlet end of the inner shell through a large flange, the exhaust gas distribution device is arranged at the closed end of the outer shell, and an exhaust gas inlet is arranged on the exhaust gas distribution device; an annular natural gas distribution device and an air inlet are arranged on the outer shell, and a natural gas inlet is arranged on the annular natural gas distribution device; an outer ring baffle, an inner ring baffle and a central cyclone plate are arranged in sequence at the outlet end of the inner shell from the inner wall of the inner shell to the center of the inner shell, a plurality of cyclone blades are arranged on the central cyclone plate, the air inlet side of the outer ring baffle is closed and connected to the air inlet side of the inner ring baffle to prevent wind from passing through the space between the outer ring baffle and the inner ring baffle, the outer ring baffle is fixed to the inner wall of the inner shell by a support, and the outer ring baffle and the inner shell The inner wall forms an outer ring air duct, and a plurality of outer ring cyclone plates are arranged in the outer ring air duct. The central cyclone plate is fixed on the inner ring baffle plate through a plurality of inner ring cyclone plates, and the central cyclone plate and the inner ring baffle plate form the inner ring air duct; the exhaust gas distribution device is provided with a plurality of exhaust gas inner ring pipes and a plurality of exhaust gas outer ring pipes, and the plurality of exhaust gas inner ring pipes pass through the closed end of the outer shell and the inner ring cyclone plate to connect the exhaust gas distribution device with the inner ring air duct; the plurality of exhaust gas outer ring pipes pass through the closed end of the outer shell and the outer ring cyclone plate to connect the exhaust gas distribution device with the outer ring air duct; the annular natural gas distribution device is provided with a plurality of natural gas outer ring pipes and a plurality of natural gas inner ring pipes, and the plurality of natural gas outer ring pipes pass through the outer ring cyclone plate to connect the annular natural gas distribution device with the outer ring air duct, and the plurality of natural gas inner ring pipes pass through the inner ring cyclone plate to connect the annular natural gas distribution device with the inner ring air duct, and the central natural gas pipe arranged on the annular natural gas distribution device passes through the central cyclone plate to connect the annular natural gas distribution device with the outlet end of the inner shell;

[0007] The burner is also provided with a pilot lamp tube and an igniter tube, one end of each of which is arranged outside the closed end of the shell, and the other end of each of which passes through the central cyclone plate;

[0008] The outlet ends of the exhaust gas inner ring pipe, the exhaust gas outer ring pipe, the natural gas inner ring pipe, the natural gas outer ring pipe and the pilot light tube are all provided with direct injection round hole nozzles; the outlet end of the central natural gas pipe is provided with a direct injection round hole nozzle or a side injection round hole nozzle.

[0009] Furthermore, the burner is also provided with a flame observation tube and a flame detector tube, one end of the flame observation tube is provided with an observation mirror, and the other end is open, the mirror end of the flame observation tube is arranged outside the closed end of the outer shell, and the open end of the flame observation tube passes through the inner ring cyclone plate to be connected with the inner ring air duct; one end of the flame detector tube is arranged outside the closed end of the outer shell, and the other end is open and passes through the central cyclone plate to be connected with the inner ring air duct.

[0010] Further, the igniter tube, the flame observation tube and the flame detector tube are all provided with air cooling air inlets;

[0011] Furthermore, the exhaust gas distribution device is connected to the outer side of the closed end of the shell by bracket welding or bracket bolt fastening.

[0012] Furthermore, the air inlet is in a square tube shape or a round tube shape.

[0013] Furthermore, one, two or more flame observation tubes are provided.

[0014] Furthermore, one, two, three or more direct-injection circular-hole nozzles are arranged at the outlet ends of the exhaust gas inner ring pipe, the exhaust gas outer ring pipe, the natural gas inner ring pipe and the natural gas outer ring pipe.

[0015] Furthermore, the exhaust gas inner ring pipe and the natural gas inner ring pipe are evenly spaced apart from each other in the inner ring air duct, and the natural gas outer ring pipe and the exhaust gas outer ring pipe are evenly spaced apart from each other in the outer ring air duct.

[0016] Furthermore, the burner also includes a waste liquid distribution device and a plurality of waste liquid inner ring pipes, waste liquid nozzles are arranged at the outlet ends of the plurality of waste liquid inner ring pipes, the plurality of waste liquid inner ring pipes pass through the closed end of the outer shell and the inner ring cyclone plate to connect the waste liquid distribution device with the inner ring air duct, and the outlet ends of the plurality of waste liquid inner ring pipes are arranged in the inner ring air duct; the plurality of waste liquid inner ring pipes and the plurality of waste gas inner ring pipes and the plurality of natural gas inner ring pipes are evenly spaced from each other. Beneficial Effects

[0017] 1. The outlet ends of the exhaust gas inner ring pipe, the exhaust gas outer ring pipe, the natural gas inner ring pipe and the natural gas outer ring pipe of the utility model are all provided with direct injection round hole nozzles, which can spray the exhaust gas into the furnace far away from the nozzle. The exhaust gas burns in the furnace far away from the nozzle, which effectively avoids mutual grilling between the nozzles, makes the nozzles less likely to burn out, and also reduces the temperature of the nozzles, so that the burner can operate stably for a long time.

[0018] 2. The waste gas inner ring pipe and the natural gas inner ring pipe of the utility model are evenly spaced apart in the inner ring air duct, and the natural gas outer ring pipe and the waste gas outer ring pipe are evenly spaced apart in the outer ring air duct, so that the waste gas can be fully burned under the ignition of natural gas. The waste liquid inner ring pipe arranged in the inner ring air duct can also fully burn the waste liquid under the ignition of natural gas, thereby ensuring the stable combustion of the waste gas and waste liquid, and making the superheater operate stably for a long time.

[0019] 3. The inner ring cyclone plate, outer ring cyclone plate and central cyclone plate provided in the utility model make the air rotate and flow, thereby fully mixing the waste gas, waste liquid and natural gas with the air, so that the waste gas and waste liquid can be fully burned. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model in section;

[0021] Figure 2 It is a schematic diagram of the rear view structure of the utility model in section;

[0022] Figure 3 It is a left-side structural schematic diagram a of the utility model;

[0023] Figure 4 It is a right view structural schematic diagram a of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the utility model in which the air inlet is a square tube;

[0025] Figure 6 It is a left-side structural schematic diagram b of the utility model;

[0026] Figure 7 It is a right side structural schematic diagram b of the utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the utility model in which the air inlet is a circular tube;

[0028] Fig. 9 It is a left-side structural schematic diagram c of the utility model;

[0029] Fig.10 It is a right view structural schematic diagram c of the utility model;

[0030] Fig.11 This is a schematic diagram of the structure of the side-spraying round hole nozzle at the outlet end of the central natural gas pipe of the utility model;

[0031] In the figure, 1-outer shell; 2-inner shell; 3-large flange; 4-natural gas inlet; 5-exhaust gas distribution device; 6-exhaust gas inner ring pipe; 7-air cooling air inlet a; 8-flame observation tube a; 9-air cooling air inlet c; 10-flame detector tube; 11-exhaust gas inlet; 12-bolt hole a; 13-annular natural gas distribution device; 14-exhaust gas outer ring pipe; 15-air inlet; 16-natural gas outer ring pipe; 17-natural gas inner ring pipe; 18-inner ring cyclone plate; 19-outer ring cyclone plate; 20-support ; 21-outer ring baffle; 22-inner ring baffle; 23-center cyclone plate; 24-center natural gas pipe; 25-flame observation tube b; 26-air cooling air inlet b; 27-long-lasting lamp tube; 28-igniter tube; 29-cyclone blade; 30-round hole nozzle a; 31-round hole nozzle b; 32-round hole nozzle c; 33-round hole nozzle d; 34-round hole nozzle e; 35-round hole nozzle f; 36-bolt hole b; 37-bolt hole c; 38-bracket; 39-bolt hole d; 40-round hole nozzle g. DETAILED DESCRIPTION Example 1

[0032] Reference Figure 1-5, in order to make the waste gas and waste liquid burn stably in the overheating furnace, the overheating furnace runs stably for a long time, and avoid burning out due to the short operation of the burner, causing the overheating furnace to stop for maintenance; the utility model provides a burner for burning coal chemical waste gas and waste liquid, including an outer shell 1, an inner shell 2 and an exhaust gas distribution device 5, the outer shell 1 and the inner shell 2 are both cylindrical, one end of the cylindrical outer shell 1 is closed and the other end is open, both ends of the cylindrical inner shell 2 are open, one end is the inlet end, and the other end is the outlet end; the open end of the outer shell 1 is connected to the inlet end of the inner shell 2 through a large flange 3, and a plurality of bolt holes a12 are arranged on the large flange 3, and the burner is installed on the overheating furnace through the bolt holes a12; the exhaust gas distribution device 5 is arranged at the closed end of the outer shell 1, and the exhaust gas distribution device 5 is arranged at the closed end of the outer shell 1. The exhaust gas distribution device 5 is welded to the outer side of the closed end of the outer shell 1 through a bracket 38, and an exhaust gas inlet 11 is arranged on the exhaust gas distribution device 5, and a bolt hole c37 is arranged on the flange of the exhaust gas inlet 11; an annular natural gas distribution device 13 and an air inlet 15 are arranged on the outer shell 1, and a natural gas inlet 4 is arranged on the annular natural gas distribution device 13, and the air inlet 15 is a square tube, and a bolt hole b36 is arranged on the flange of the square tube air inlet 15; the outlet end of the inner shell 2 is sequentially provided with an outer ring baffle 21, an inner ring baffle 22 and a central cyclone plate 23 from the inner wall of the inner shell 2 to the center of the inner shell 2, and a plurality of cyclone blades 29 are arranged on the central cyclone plate 23, and the air inlet side of the outer ring baffle 21 is sealed and connected with the air inlet side of the inner ring baffle 22, such as welding, to avoid The wind passes through the space between the outer ring baffle 21 and the inner ring baffle 22. The outer ring baffle 21 is fixed to the inner wall of the inner shell 2 through the support 20. The outer ring baffle 21 and the inner wall of the inner shell 2 constitute an outer ring air duct. A plurality of outer ring cyclone plates 19 are arranged in the outer ring air duct. The plurality of outer ring cyclone plates 19 make the air rotate and flow out of the outlet end of the inner shell 2. At the same time, the plurality of outer ring cyclone plates 19 can also play the role of fixing the outer ring baffle 21 to the inner wall of the inner shell 2; the central cyclone plate 23 is fixed to the inner ring baffle 22 through a plurality of inner ring cyclone plates 18. The central cyclone plate 23 and the inner ring baffle 22 constitute an inner ring air duct; a plurality of exhaust inner ring pipes 6 and a plurality of exhaust outer ring pipes 14 are arranged on the exhaust gas distribution device 5. The plurality of exhaust inner ring pipes 6 pass through the closed outer shell 1 The end and the inner ring cyclone plate 18 connect the exhaust gas distribution device 5 with the inner ring air duct; the plurality of exhaust gas outer ring pipes 14 pass through the closed end of the shell 1 and the outer ring cyclone plate 19 to connect the exhaust gas distribution device 5 with the outer ring air duct; the annular natural gas distribution device 13 is provided with a plurality of natural gas outer ring pipes 16 and a plurality of natural gas inner ring pipes 17, the plurality of natural gas outer ring pipes 16 pass through the outer ring cyclone plate 19 to connect the annular natural gas distribution device 13 with the outer ring air duct, and the plurality of natural gas inner ring pipes 17 pass through the inner ring cyclone plate 18 to connect the annular natural gas distribution device 13 with the inner ring air duct, the exhaust gas inner ring pipe 6 and the natural gas inner ring pipe 17 are evenly spaced apart in the inner ring air duct, and the natural gas outer ring pipe 16 and the exhaust gas outer ring pipe 14 are evenly spaced apart in the outer ring air duct;The central natural gas pipe 24 provided on the annular natural gas distribution device 13 passes through the central cyclone plate 23 to connect the annular natural gas distribution device 13 with the outlet end of the inner shell 2;

[0033] The burner is also provided with a pilot lamp tube 27 and an igniter tube 28, one end of each of which is arranged outside the closed end of the housing 1, and the other end of each of which passes through the central cyclone plate 23;

[0034] The outlet ends of the exhaust gas inner ring pipe 6, the exhaust gas outer ring pipe 14, the natural gas inner ring pipe 17, the natural gas outer ring pipe 16, and the ever-burning lamp tube 27 are all provided with direct-injection round hole nozzles; the outlet end of the ever-burning lamp tube 27 is provided with a direct-injection round hole nozzle a30, the outlet end of the central natural gas pipe 24 is provided with a direct-injection round hole nozzle b31, the outlet end of the exhaust gas inner ring pipe 6 is provided with seven direct-injection round hole nozzles c32, the outlet end of the exhaust gas outer ring pipe 14 is provided with seven direct-injection round hole nozzles d33, the outlet end of the natural gas inner ring pipe 17 is provided with two direct-injection round hole nozzles e34, and the outlet end of the natural gas outer ring pipe 16 is provided with two direct-injection round hole nozzles f35;

[0035] The burner is also provided with a flame observation tube and a flame detector tube 10. The igniter tube 28, the flame observation tube and the flame detector tube 10 are all provided with air cooling wind inlets, and the igniter tube 28, the flame observation tube and the flame detector tube 10 are cooled by air to avoid high-temperature burning; two flame observation tubes are provided, namely, flame observation tube a8 and flame observation tube b25, one end of the flame observation tube is provided with an observation mirror, and the other end is open, the mirror end of the flame observation tube is arranged outside the closed end of the outer shell 1, and the open end of the flame observation tube passes through the inner ring cyclone plate 18 to communicate with the inner ring air duct, the observation mirror end of the flame observation tube a8 is provided with an air cooling wind inlet a7, and the observation mirror end of the flame observation tube b25 is provided with an air cooling wind inlet b26; one end of the flame detector tube 10 is placed outside the closed end of the outer shell 1 and is provided with an air cooling wind inlet c9, and the other end is open and passes through the central cyclone plate 23 to communicate with the outlet end of the inner shell 2. Example 2

[0036] Reference Figure 1 , Figure 2 , Figure 6 , Figure 7 Figure 8, in order to make the waste gas and waste liquid burn stably in the overheating furnace, the overheating furnace runs stably for a long time, and avoid burning out due to the short operation of the burner, causing the overheating furnace to stop for maintenance; the utility model provides a burner for burning coal chemical waste gas and waste liquid, including an outer shell 1, an inner shell 2 and an exhaust gas distribution device 5, the outer shell 1 and the inner shell 2 are both cylindrical, one end of the cylindrical outer shell 1 is closed and the other end is open, both ends of the cylindrical inner shell 2 are open, one end is the inlet end, and the other end is the outlet end; the open end of the outer shell 1 is connected to the inlet end of the inner shell 2 through a large flange 3, and a plurality of bolt holes a12 are arranged on the large flange 3, and the burner is installed on the overheating furnace through the bolt holes a12; the exhaust gas distribution device 5 is arranged at the closed end of the outer shell 1, and the exhaust gas distribution device 5 is arranged at the closed end of the outer shell 1. The distribution device 5 is welded to the outer side of the closed end of the outer shell 1 through a bracket 38. The outer shell 1 is provided with an annular natural gas distribution device 13 and an air inlet 15. The annular natural gas distribution device 13 is provided with a natural gas inlet 4. The exhaust gas distribution device 5 is provided with an exhaust gas inlet 11, and a bolt hole c37 is provided on the flange of the exhaust gas inlet 11; the air inlet 15 is a circular tube, and a bolt hole d39 is provided on the flange of the circular tube air inlet 15; the outlet end of the inner shell 2 is provided with an outer ring baffle 21, an inner ring baffle 22 and a central cyclone plate 23 in sequence from the inner wall of the inner shell 2 to the center of the inner shell 2, and a plurality of cyclone blades 29 are provided on the central cyclone plate 23. The air inlet side of the outer ring baffle 21 is sealed and connected with the air inlet side of the inner ring baffle 22, such as welding, to avoid The wind passes through the space between the outer ring baffle 21 and the inner ring baffle 22. The outer ring baffle 21 is fixed to the inner wall of the inner shell 2 through the support 20. The outer ring baffle 21 and the inner wall of the inner shell 2 constitute an outer ring air duct. A plurality of outer ring cyclone plates 19 are arranged in the outer ring air duct. The plurality of outer ring cyclone plates 19 make the air rotate and flow out of the outlet end of the inner shell 2. At the same time, the plurality of outer ring cyclone plates 19 can also play the role of fixing the outer ring baffle 21 to the inner wall of the inner shell 2; the central cyclone plate 23 is fixed to the inner ring baffle 22 through a plurality of inner ring cyclone plates 18. The central cyclone plate 23 and the inner ring baffle 22 constitute an inner ring air duct; a plurality of exhaust inner ring pipes 6 and a plurality of exhaust outer ring pipes 14 are arranged on the exhaust gas distribution device 5. The plurality of exhaust inner ring pipes 6 pass through the closed outer shell 1 The end and the inner ring cyclone plate 18 connect the exhaust gas distribution device 5 with the inner ring air duct; the plurality of exhaust gas outer ring pipes 14 pass through the closed end of the shell 1 and the outer ring cyclone plate 19 to connect the exhaust gas distribution device 5 with the outer ring air duct; the annular natural gas distribution device 13 is provided with a plurality of natural gas outer ring pipes 16 and a plurality of natural gas inner ring pipes 17, the plurality of natural gas outer ring pipes 16 pass through the outer ring cyclone plate 19 to connect the annular natural gas distribution device 13 with the outer ring air duct, and the plurality of natural gas inner ring pipes 17 pass through the inner ring cyclone plate 18 to connect the annular natural gas distribution device 13 with the inner ring air duct, the exhaust gas inner ring pipe 6 and the natural gas inner ring pipe 17 are evenly spaced apart in the inner ring air duct, and the natural gas outer ring pipe 16 and the exhaust gas outer ring pipe 14 are evenly spaced apart in the outer ring air duct;The central natural gas pipe 24 provided on the annular natural gas distribution device 13 passes through the central cyclone plate 23 to connect the annular natural gas distribution device 13 with the outlet end of the inner shell 2;

[0037] The burner is also provided with a pilot lamp tube 27 and an igniter tube 28, one end of each of which is arranged outside the closed end of the housing 1, and the other end of each of which passes through the central cyclone plate 23;

[0038] The outlet ends of the exhaust gas inner ring pipe 6, the exhaust gas outer ring pipe 14, the natural gas inner ring pipe 17, the natural gas outer ring pipe 16, and the ever-burning lamp tube 27 are all provided with direct-injection round hole nozzles; the outlet end of the ever-burning lamp tube 27 is provided with a direct-injection round hole nozzle a30, the outlet end of the central natural gas pipe 24 is provided with a direct-injection round hole nozzle b31, the outlet end of the exhaust gas inner ring pipe 6 is provided with five direct-injection round hole nozzles c32, the outlet end of the exhaust gas outer ring pipe 14 is provided with five direct-injection round hole nozzles d33, the outlet end of the natural gas inner ring pipe 17 is provided with a direct-injection round hole nozzle e34, and the outlet end of the natural gas outer ring pipe 16 is provided with a direct-injection round hole nozzle f35;

[0039] The burner is also provided with a flame observation tube and a flame detector tube 10. The igniter tube 28, the flame observation tube and the flame detector tube 10 are all provided with air cooling wind inlets, and the igniter tube 28, the flame observation tube and the flame detector tube 10 are cooled by air to avoid high-temperature burning; one flame observation tube is provided, which is the flame observation tube a8, one end of the flame observation tube is provided with an observation mirror, and the other end is open, the mirror end of the flame observation tube is arranged outside the closed end of the outer shell 1, the open end of the flame observation tube passes through the inner ring cyclone plate 18 and is connected with the inner ring air duct, and the observation mirror end of the flame observation tube a8 is provided with an air cooling wind inlet a7; one end of the flame detector tube 10 is placed outside the closed end of the outer shell 1 and is provided with an air cooling wind inlet c9, and the other end is open and passes through the central cyclone plate 23 and is connected with the outlet end of the inner shell 2. Example 3

[0040] Reference Figure 1 , Figure 2 , Figure 5 , Fig. 9 , Fig.10 , Fig.11, in order to make the waste gas and waste liquid burn stably in the overheating furnace, the overheating furnace runs stably for a long time, and avoid burning out due to the short operation of the burner, causing the overheating furnace to stop for maintenance; the utility model provides a burner for burning coal chemical waste gas and waste liquid, including an outer shell 1, an inner shell 2 and an exhaust gas distribution device 5, the outer shell 1 and the inner shell 2 are both cylindrical, one end of the cylindrical outer shell 1 is closed and the other end is open, both ends of the cylindrical inner shell 2 are open, one end is the inlet end, and the other end is the outlet end; the open end of the outer shell 1 is connected to the inlet end of the inner shell 2 through a large flange 3, and a plurality of bolt holes a12 are arranged on the large flange 3, and the burner is installed on the overheating furnace through the bolt holes a12; the exhaust gas distribution device 5 is arranged at the closed end of the outer shell 1, and the exhaust gas distribution device 5 is arranged at the closed end of the outer shell 1. The device 5 is fastened to the outside of the closed end of the outer shell 1 by bolts through a bracket 38. The outer shell 1 is provided with an annular natural gas distribution device 13 and an air inlet 15. The annular natural gas distribution device 13 is provided with a natural gas inlet 4. The exhaust gas distribution device 5 is provided with an exhaust gas inlet 11, and a bolt hole c37 is provided on the flange of the exhaust gas inlet 11. The air inlet 15 is a square tube, and a bolt hole b36 is provided on the flange of the square tube air inlet 15; the outlet end of the inner shell 2 is provided with an outer ring baffle 21, an inner ring baffle 22 and a central cyclone plate 23 in sequence from the inner wall of the inner shell 2 to the center of the inner shell 2. A plurality of cyclone blades 29 are provided on the central cyclone plate 23. The air inlet side of the outer ring baffle 21 is sealed and connected with the air inlet side of the inner ring baffle 22, such as welding, to avoid The wind passes through the space between the outer ring baffle 21 and the inner ring baffle 22. The outer ring baffle 21 is fixed to the inner wall of the inner shell 2 by the support 20. The outer ring baffle 21 and the inner wall of the inner shell 2 constitute an outer ring air duct. A plurality of outer ring cyclone plates 19 are arranged in the outer ring air duct. The plurality of outer ring cyclone plates 19 make the air rotate and flow out of the outlet end of the inner shell 2. At the same time, the plurality of outer ring cyclone plates 19 can also play the role of fixing the outer ring baffle 21 to the inner wall of the inner shell 2; the central cyclone plate 23 is fixed to the inner ring baffle 22 by a plurality of inner ring cyclone plates 18. The central cyclone plate 23 and the inner ring baffle 22 constitute an inner ring air duct; a plurality of exhaust inner ring pipes 6 and a plurality of exhaust outer ring pipes 14 are arranged on the exhaust gas distribution device 5. The plurality of exhaust inner ring pipes 6 pass through the outer shell 1 sealing The closed end and the inner ring cyclone plate 18 connect the exhaust gas distribution device 5 with the inner ring air duct; the plurality of exhaust gas outer ring pipes 14 pass through the closed end of the outer shell 1 and the outer ring cyclone plate 19 to connect the exhaust gas distribution device 5 with the outer ring air duct; the annular natural gas distribution device 13 is provided with a plurality of natural gas outer ring pipes 16 and a plurality of natural gas inner ring pipes 17, the plurality of natural gas outer ring pipes 16 pass through the outer ring cyclone plate 19 to connect the annular natural gas distribution device 13 with the outer ring air duct, and the plurality of natural gas inner ring pipes 17 pass through the inner ring cyclone plate 18 to connect the annular natural gas distribution device 13 with the inner ring air duct, the exhaust gas inner ring pipe 6 and the natural gas inner ring pipe 17 are evenly spaced apart in the inner ring air duct, and the natural gas outer ring pipe 16 and the exhaust gas outer ring pipe 14 are evenly spaced apart in the outer ring air duct;The central natural gas pipe 24 provided on the annular natural gas distribution device 13 passes through the central cyclone plate 23 to connect the annular natural gas distribution device 13 with the outlet end of the inner shell 2;

[0041] The burner is also provided with a pilot lamp tube 27 and an igniter tube 28, one end of each of which is arranged outside the closed end of the housing 1, and the other end of each of which passes through the central cyclone plate 23;

[0042] The outlet ends of the exhaust gas inner ring pipe 6, the exhaust gas outer ring pipe 14, the natural gas inner ring pipe 17, the natural gas outer ring pipe 16, and the ever-burning lamp tube 27 are all provided with direct-injection round hole nozzles; the outlet end of the ever-burning lamp tube 27 is provided with a direct-injection round hole nozzle a30, and the outlet end of the central natural gas pipe 24 is provided with a side-injection round hole nozzle g40, so that the natural gas is sprayed to the surroundings during combustion, which is convenient for igniting the nozzles around the central natural gas pipe 24, the outlet end of the exhaust gas inner ring pipe 6 is provided with three direct-injection round hole nozzles c32, the outlet end of the exhaust gas outer ring pipe 14 is provided with three direct-injection round hole nozzles d33, the outlet end of the natural gas inner ring pipe 17 is provided with three direct-injection round hole nozzles e34, and the outlet end of the natural gas outer ring pipe 16 is provided with three direct-injection round hole nozzles f35;

[0043] The burner is also provided with a flame observation tube and a flame detector tube 10. The igniter tube 28, the flame observation tube and the flame detector tube 10 are all provided with air cooling air inlets, and the air is used to cool the igniter tube 28, the flame observation tube and the flame detector tube 10 to avoid high temperature burning; four flame observation tubes are provided, namely, flame observation tube a8, flame observation tube b25, flame observation tube c, and flame observation tube d. An observation mirror is provided at one end of the flame observation tube, and the other end is open. The mirror end of the flame observation tube is provided at Outside the closed end of the outer shell 1, the open end of the flame observation tube passes through the inner ring cyclone plate 18 to communicate with the inner ring air duct, and the observation mirror ends of the flame observation tube a8, flame observation tube b25, flame observation tube c, and flame observation tube d are respectively provided with air cooling air inlet a7, air cooling air inlet b26, air cooling air inlet d, and air cooling air inlet e; one end of the flame detector tube 10 is placed outside the closed end of the outer shell 1 and is provided with an air cooling air inlet c9, and the other end is open and passes through the central cyclone plate 23 to communicate with the outlet end of the inner shell 2.

[0044] Another embodiment is different from the first embodiment in that four direct injection round hole nozzles are disposed at the outlet ends of the natural gas inner ring pipe 17 and the natural gas outer ring pipe 16 .

[0045] Another embodiment is different from the embodiment 2 in that a direct injection round hole nozzle is provided at the outlet end of the exhaust gas inner ring pipe 6 and the exhaust gas outer ring pipe 14 .

[0046] Another embodiment is different from the embodiment 2 in that two direct injection round hole nozzles are provided at the outlet ends of the exhaust gas inner ring pipe 6 and the exhaust gas outer ring pipe 14 .

[0047] Another embodiment is different from Embodiment 1 in that: the burner also includes a waste liquid distribution device and a plurality of waste liquid inner ring pipes, waste liquid nozzles are arranged at the outlet ends of the plurality of waste liquid inner ring pipes, the plurality of waste liquid inner ring pipes pass through the closed end of the outer shell 1 and the inner ring cyclone plate to connect the waste liquid distribution device with the inner ring air duct, and the outlet ends of the plurality of waste liquid inner ring pipes are arranged in the inner ring air duct; the plurality of waste liquid inner ring pipes and the plurality of waste gas inner ring pipes 6 and the plurality of natural gas inner ring pipes 17 are evenly spaced from each other.

[0048] Modifications and changes to the invention made by those familiar with the present invention are all within the patent scope of the present invention, and are not limited to those described in the embodiments.

Claims

1. A burner for burning coal chemical waste gas and waste liquid, characterized in that: The utility model comprises an outer shell, an inner shell and an exhaust gas distribution device, wherein the outer shell and the inner shell are both cylindrical, one end of the outer shell cylinder is closed and the other end is open, and both ends of the inner shell cylinder are open, one end is an inlet end and the other end is an outlet end; the open end of the outer shell is connected to the inlet end of the inner shell through a large flange, the exhaust gas distribution device is arranged at the closed end of the outer shell, and an exhaust gas inlet is arranged on the exhaust gas distribution device; an annular natural gas distribution device and an air inlet are arranged on the outer shell, and a natural gas inlet is arranged on the annular natural gas distribution device, and an outer ring baffle, an inner ring baffle and a central cyclone plate are arranged in sequence at the outlet end of the inner shell from the inner wall of the inner shell to the center of the inner shell, and a plurality of cyclone blades are arranged on the central cyclone plate, and the air inlet side of the outer ring baffle is closed and connected with the air inlet side of the inner ring baffle to prevent wind from passing through the space between the outer ring baffle and the inner ring baffle, and the outer ring baffle is fixed to the inner wall of the inner shell through a support, and the outer ring baffle and the inner wall of the inner shell form an outer ring air duct , a plurality of outer ring cyclone plates are arranged in the outer ring air duct, the central cyclone plate is fixed on the inner ring baffle plate through a plurality of inner ring cyclone plates, and the central cyclone plate and the inner ring baffle plate constitute the inner ring air duct; a plurality of inner ring pipes and outer ring pipes are arranged on the exhaust gas distribution device, the plurality of inner ring pipes pass through the closed end of the outer shell and the inner ring cyclone plate to connect the exhaust gas distribution device with the inner ring air duct; the plurality of outer ring pipes pass through the closed end of the outer shell and the outer ring cyclone plate to connect the exhaust gas distribution device with the outer ring air duct; the annular natural gas distribution device is provided with a plurality of outer ring pipes and inner ring pipes of natural gas, the plurality of outer ring pipes of natural gas pass through the outer ring cyclone plate to connect the annular natural gas distribution device with the outer ring air duct, the plurality of inner ring pipes of natural gas pass through the inner ring cyclone plate to connect the annular natural gas distribution device with the inner ring air duct, and the central natural gas pipe arranged on the annular natural gas distribution device passes through the central cyclone plate to connect the annular natural gas distribution device with the outlet end of the inner shell; The burner is also provided with a pilot lamp tube and an igniter tube, one end of each of which is arranged outside the closed end of the shell, and the other end of each of which passes through the central cyclone plate; The outlet ends of the exhaust gas inner ring pipe, the exhaust gas outer ring pipe, the natural gas inner ring pipe, the natural gas outer ring pipe and the pilot light tube are all provided with direct injection round hole nozzles; the outlet end of the central natural gas pipe is provided with a direct injection round hole nozzle or a side injection round hole nozzle.

2. A burner for burning coal chemical waste gas and waste liquid according to claim 1, characterized in that: The burner is also provided with a flame observation tube and a flame detector tube. An observation mirror is provided at one end of the flame observation tube, and the other end is open. The mirror end of the flame observation tube is arranged outside the closed end of the shell, and the open end of the flame observation tube passes through the inner ring cyclone plate to communicate with the inner ring air duct; one end of the flame detector tube is arranged outside the closed end of the shell, and the other end is open and passes through the central cyclone plate to communicate with the inner ring air duct.

3. A burner for burning coal chemical waste gas and waste liquid according to claim 1, characterized in that: The igniter tube, flame observation tube and flame detector tube are all provided with air cooling air inlets.

4. The burner for burning coal chemical waste gas and waste liquid according to claim 1, characterized in that: The exhaust gas distribution device is connected to the outer side of the closed end of the shell by bracket welding or bracket bolt fastening.

5. The burner for burning coal chemical waste gas and waste liquid according to claim 1, characterized in that: The air inlet is in the shape of a square tube or a round tube.

6. A burner for burning coal chemical waste gas and waste liquid according to claim 2, characterized in that: The flame observation tubes are provided in one, two or more forms.

7. The burner for burning coal chemical waste gas and waste liquid according to claim 1, characterized in that: One, two, three or more direct-injection circular-hole nozzles are arranged at the outlet ends of the exhaust gas inner ring pipe, the exhaust gas outer ring pipe, the natural gas inner ring pipe and the natural gas outer ring pipe.

8. The burner for burning coal chemical waste gas and waste liquid according to claim 1, characterized in that: The exhaust gas inner ring pipe and the natural gas inner ring pipe are evenly spaced apart from each other in the inner ring air duct, and the natural gas outer ring pipe and the exhaust gas outer ring pipe are evenly spaced apart from each other in the outer ring air duct.

9. The burner for burning coal chemical waste gas and waste liquid according to claim 1, characterized in that: The burner also includes a waste liquid distribution device and a plurality of waste liquid inner ring pipes. Waste liquid nozzles are arranged at the outlet ends of the plurality of waste liquid inner ring pipes. The plurality of waste liquid inner ring pipes pass through the closed end of the outer shell and the inner ring cyclone plate to connect the waste liquid distribution device with the inner ring air duct. The outlet ends of the plurality of waste liquid inner ring pipes are arranged in the inner ring air duct. The plurality of waste liquid inner ring pipes and the plurality of waste gas inner ring pipes and the plurality of natural gas inner ring pipes are evenly spaced from each other.

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