Split joint control type waste acid cracking furnace burner device

Abstract

The application relates to the technical field of waste acid treatment equipment, and particularly discloses a split joint control type waste acid cracking furnace burner device, which comprises a cracking furnace burner, the left side surface of the cracking furnace burner is fixedly embedded with a double-fluid atomizer, the inner wall of the cracking furnace burner is fixedly connected with a circular combustion pipe, the inner wall of the circular combustion pipe is fixedly connected with annularly arranged combustion liquid nozzles, the input end of the circular combustion pipe is fixedly connected with a gas pipe, and the outer surface of the gas pipe is fixedly connected with a fuel flow control valve. The device adopts a split joint control structure, combustion and waste acid injection are independently adjusted, uniform injection design of the double-fluid atomizer and the annularly arranged combustion liquid nozzles can improve the uniformity of mixing of waste acid and high-temperature flue gas to more than 95%, and a precise temperature control system can stably control the hearth temperature in the best cracking interval through multi-point thermocouples and rapid interlocking adjustment, so that the waste acid cracking rate is improved, and the problem of uncracked waste acid residues is completely solved.

Description

Technical Field

[0001] This application relates to the technical field of waste acid treatment equipment, and in particular to a split-type waste acid pyrolysis furnace burner device. Background Technology

[0002] In the production processes of industries such as petrochemicals, metallurgy, and coal chemicals, a large amount of sulfur-containing waste acid is generated. If this waste acid is discharged directly, it will seriously pollute the soil and water bodies. It needs to be treated harmlessly through a waste acid pyrolysis furnace. The waste acid is pyrolyzed into gases such as SO2 and HCl at high temperatures, and then recycled and reused through desulfurization and dechlorination processes.

[0003] Currently, most mainstream waste acid pyrolysis furnace burners on the market adopt an "integrated combustion-injection" structure. Waste acid and fuel are mixed in the same channel before entering the furnace for combustion and pyrolysis. The mixing path between waste acid and fuel is short and the mixing uniformity is low, which easily leads to local "excessive fuel high temperature zone" and "excessive waste acid low temperature zone". This not only wastes energy but also produces unpyrolyzed waste acid residue, increasing the burden of subsequent treatment. To address these issues, we propose a split-type integrated control waste acid pyrolysis furnace burner device. Utility Model Content

[0004] This application provides a split-type waste acid pyrolysis furnace burner device, which can improve the mixing uniformity of waste acid and high-temperature flue gas, and the precise temperature control system can stably control the furnace temperature within the optimal pyrolysis range through multi-point thermocouples and rapid interlocking adjustment, which facilitates the improvement of waste acid pyrolysis rate.

[0005] This application provides a split-type waste acid pyrolysis furnace burner device, including a pyrolysis furnace burner. A dual-fluid atomizer is fixedly embedded on the left side of the pyrolysis furnace burner. A circular combustion tube is fixedly connected to the inner wall of the pyrolysis furnace burner. A ring-shaped arrangement of combustion liquid nozzles is fixedly connected to the inner wall of the circular combustion tube. A gas pipe is fixedly connected to the input end of the circular combustion tube. A fuel flow control valve is fixedly connected to the outer surface of the gas pipe. A ring-shaped arrangement of high-temperature thermocouples is fixedly connected to the inner wall of the pyrolysis furnace burner. A primary air inlet pipe is fixedly connected to the upper surface of the pyrolysis furnace burner. A first control air valve is fixedly connected to the outer surface of the primary air inlet pipe. A secondary air inlet pipe is fixedly connected to the bottom surface of the pyrolysis furnace burner. A second control air valve is fixedly connected to the outer surface of the secondary air inlet pipe. A temperature monitoring sensor is fixedly embedded on the front of the pyrolysis furnace burner. The pyrolysis furnace burner includes a base steel layer, a corrosion-resistant layer, and a refractory layer.

[0006] Furthermore, a heat-insulating sleeve is fixedly connected to the outer surface of the pyrolysis furnace burner.

[0007] Furthermore, a PLC control panel is fixedly connected to the front of the heat insulation shell. The PLC control panel is electrically connected to the fuel flow control valve via wires, and the temperature monitoring sensor is electrically connected to the PLC control panel via wires.

[0008] Furthermore, an operation sign is fixedly connected to the front of the heat insulation shell, and the operation sign is located in the middle of the heat insulation shell.

[0009] Furthermore, an igniter is fixedly embedded on the upper surface of the pyrolysis furnace burner, and the igniter is located directly above the combustion liquid nozzle.

[0010] Furthermore, a connecting pipe is fixedly connected to the left side of the pyrolysis furnace burner, and a connecting flange is fixedly connected to the left end of the connecting pipe. A set of connecting holes is opened on the left side of the connecting flange.

[0011] Furthermore, the bottom surface of the pyrolysis furnace burner is fixedly connected to two mounting legs, and the outer surface of each mounting leg is fixedly connected to two mounting plates.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The technical solution provided in this application has at least the following technical effects or advantages: This device adopts a split-control structure, with combustion and waste acid injection adjusted independently. Combined with the uniform injection design of the dual-fluid atomizer and the ring-shaped combustion liquid nozzles, it can improve the mixing uniformity of waste acid and high-temperature flue gas to over 95%. The precise temperature control system uses multi-point thermocouples and rapid interlocking to stably control the furnace temperature within the optimal pyrolysis range, thereby improving the waste acid pyrolysis rate and completely solving the problem of unpyrolyzed waste acid residue. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a split-type waste acid pyrolysis furnace burner device according to this application; Figure 2 This is a side view of the pyrolysis furnace burner of this application; Figure 3 This is a schematic diagram of the internal cross-sectional structure of the pyrolysis furnace burner in this application; Figure 4 This is a diagram showing the internal structure of the pyrolysis furnace burner in this application; In the diagram: 1. Cracking furnace burner; 101. Base steel layer; 102. Corrosion-resistant layer; 103. Refractory layer; 2. Insulation sleeve; 3. Temperature monitoring sensor; 4. Connecting pipe; 41. Connecting flange; 42. Connecting hole; 5. Mounting leg; 51. Mounting plate; 6. Operation sign; 7. Primary air inlet pipe; 71. First control gas valve; 8. Ignition device; 9. Secondary air inlet pipe; 91. Second control gas valve; 10. Gas pipe; 11. Fuel flow control valve; 12. Dual-fluid atomizer; 13. PLC control panel; 14. High-temperature thermocouple; 15. Circular combustion tube; 151. Combustion liquid nozzle. Detailed Implementation

[0014] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods. Example

[0015] Please see Figure 1-4 In this utility model, a split-type waste acid pyrolysis furnace burner device includes a pyrolysis furnace burner 1. A heat-insulating shell 2 is fixedly connected to the outer surface of the pyrolysis furnace burner 1 to increase its external heat insulation effect. A dual-fluid atomizer 12 is fixedly embedded on the left side of the pyrolysis furnace burner 1. A circular combustion tube 15 is fixedly connected to the inner wall of the pyrolysis furnace burner 1. A ring-shaped arrangement of combustion liquid nozzles 151 is fixedly connected to the inner wall of the circular combustion tube 15. A gas pipe 10 is fixedly connected to the input end of the circular combustion tube 15. A fuel flow control valve 11 is fixedly connected to the outer surface of the pyrolysis furnace burner 1. An igniter 8 is fixedly embedded in the upper surface of the burner 1. The igniter 8 is located directly above the combustion liquid nozzle 151, which facilitates the ignition operation of the device. A ring of high-temperature thermocouples 14 is fixedly connected to the inner wall of the pyrolysis furnace burner 1. A connecting pipe 4 is fixedly connected to the left side of the pyrolysis furnace burner 1. A connecting flange 41 is fixedly connected to the left end of the connecting pipe 4. A set of connecting holes 42 are opened on the left side of the connecting flange 41, which facilitates the connection operation with external processing equipment. Example

[0016] A primary air inlet pipe 7 is fixedly connected to the upper surface of the pyrolysis furnace burner 1, and a first control air valve 71 is fixedly connected to the outer surface of the primary air inlet pipe 7. A secondary air inlet pipe 9 is fixedly connected to the bottom surface of the pyrolysis furnace burner 1, and a second control air valve 91 is fixedly connected to the outer surface of the secondary air inlet pipe 9. A temperature monitoring sensor 3 is fixedly embedded in the front of the pyrolysis furnace burner 1. The pyrolysis furnace burner 1 includes a base steel layer 101, a corrosion-resistant layer 102, and a refractory layer 103. A PLC control panel 13 is fixedly connected to the front of the heat insulation shell 2. The PLC control panel 13 is connected to the fuel flow control valve 1 via wires. 1. Electrical connection: The temperature monitoring sensor 3 is electrically connected to the PLC control panel 13 via wires, which can easily control the device and facilitate the pyrolysis operation of waste acid. An operation sign 6 is fixedly connected to the front of the heat insulation shell 2. The operation sign 6 is located in the middle of the heat insulation shell 2 and can explain the operation process of the device, which is convenient for the operator to use. Two mounting legs 5 are fixedly connected to the bottom surface of the pyrolysis furnace burner 1. Two mounting plates 51 are fixedly connected to the outer surface of each mounting leg 5, which can install and fix the pyrolysis furnace burner 1, which can facilitate the stable use of the device.

[0017] The working principle of this application is: In use, the burner 1 of the pyrolysis furnace is first installed and fixed by the mounting legs 5 and the mounting plate 51. When pyrolyzing waste acid, the waste acid is sprayed out in an atomized form through the dual-fluid atomizer 12. At the same time, compressed air is also sprayed out through the dual-fluid atomizer 12 to achieve uniform atomization of the waste acid. At the same time, the fuel flow control valve 11 is opened, and the combustion gas-liquid flows through the gas pipe 10 and the circular combustion pipe 15, and is sprayed out in a ring through the combustion liquid nozzle 151 to achieve uniform mixing with the atomized waste acid. Then, the igniter 8 is lit to burn the gas and waste acid. At the same time, air is supplied to the inside of the burner 1 of the pyrolysis furnace through the primary air inlet pipe 7 and the secondary air inlet pipe 9 to achieve complete combustion of waste acid. At the same time, the high-temperature thermocouple 14 is controlled to heat the inside of the burner 1 of the pyrolysis furnace, and the furnace temperature is stably controlled within the optimal pyrolysis range to achieve high-efficiency pyrolysis of waste acid.

[0018] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A split-type, interconnected waste acid pyrolysis furnace burner device, characterized in that: The device includes a pyrolysis furnace burner (1), with a dual-fluid atomizer (12) fixedly embedded on the left side of the burner (1). A circular combustion tube (15) is fixedly connected to the inner wall of the burner (1), and annularly arranged combustion liquid nozzles (151) are fixedly connected to the inner wall of the circular combustion tube (15). A gas pipe (10) is fixedly connected to the input end of the circular combustion tube (15), and a fuel flow control valve (11) is fixedly connected to the outer surface of the gas pipe (10). A high-temperature thermocouple arranged in annularly is fixedly connected to the inner wall of the burner (1). The pyrolysis furnace burner (1) has a primary air inlet pipe (7) fixedly connected to its upper surface, a first control air valve (71) fixedly connected to its outer surface, a secondary air inlet pipe (9) fixedly connected to its bottom surface, a second control air valve (91) fixedly connected to its outer surface, and a temperature monitoring sensor (3) fixedly embedded on the front side of the pyrolysis furnace burner (1). The pyrolysis furnace burner (1) includes a base steel layer (101), a corrosion-resistant layer (102), and a refractory layer (103).

2. The split-type waste acid pyrolysis furnace burner device according to claim 1, characterized in that: The outer surface of the pyrolysis furnace burner (1) is fixedly connected to a heat insulation sleeve (2).

3. The split-type waste acid pyrolysis furnace burner device according to claim 2, characterized in that: The front of the heat insulation shell (2) is fixedly connected to a PLC control panel (13), which is electrically connected to the fuel flow control valve (11) via a wire, and the temperature monitoring sensor (3) is electrically connected to the PLC control panel (13) via a wire.

4. The split-type waste acid pyrolysis furnace burner device according to claim 2, characterized in that: An operation sign (6) is fixedly connected to the front of the heat insulation shell (2), and the operation sign (6) is located in the middle of the heat insulation shell (2).

5. The split-type waste acid pyrolysis furnace burner device according to claim 1, characterized in that: An igniter (8) is fixedly embedded on the upper surface of the pyrolysis furnace burner (1), and the igniter (8) is located directly above the combustion liquid nozzle (151).

6. The split-type waste acid pyrolysis furnace burner device according to claim 1, characterized in that: The left side of the pyrolysis furnace burner (1) is fixedly connected to a connecting pipe (4), and the left end of the connecting pipe (4) is fixedly connected to a connecting flange (41). A set of connecting holes (42) are opened on the left side of the connecting flange (41).

7. The split-type waste acid pyrolysis furnace burner device according to claim 1, characterized in that: The bottom surface of the pyrolysis furnace burner (1) is fixedly connected to two mounting legs (5), and the outer surface of each mounting leg (5) is fixedly connected to two mounting plates (51).

Images