Coking desulfurization waste liquid incineration equipment

Abstract

This application relates to a coking desulfurization waste liquid incineration equipment, belonging to the field of environmental protection technology and equipment technology. The structure of the coking desulfurization waste liquid incineration equipment includes: a first furnace body and a phase change separation device. One end of the first furnace body is installed on one side of the upper part of the phase change separation device, and the first furnace body is connected to the phase change separation device. An air distribution port is provided at the other end of the first furnace body. An integrated liquid combustion device is provided at the top end of the first furnace body near the phase change separation device. The integrated liquid combustion device is inserted and installed inside the first furnace body. An integrated solid combustion device is provided at the bottom end of the first furnace body near the air distribution port. The integrated solid combustion device is inserted and installed inside the first furnace body. A solid feed inlet is provided at the top end of the first furnace body near the air distribution port. This application has the technical effect of efficiently and synergistically treating desulfurization waste liquid in different states and increasing combustion stability.

Description

Technical Field

[0001] This application relates to the technical field of environmental protection technology and equipment, and in particular to a coking desulfurization waste liquid incineration equipment. Background Technology

[0002] Coking desulfurization waste liquid incineration equipment is the core equipment for treating toxic and harmful waste liquid generated in the desulfurization process of coke oven gas in the coking industry. It is mainly used to achieve harmless treatment of desulfurization waste liquid with high concentrations of sulfides, cyanides, ammonia nitrogen and various organic pollutants through high-temperature incineration. At the same time, some resources can be recovered and utilized through waste heat recovery and product separation. It is a key piece of equipment to ensure that coking enterprises meet environmental protection emission standards.

[0003] Existing coking desulfurization wastewater incineration equipment mostly adopts a single-furnace combustion structure, typically using only a single combustion device to treat liquid or solid materials. For example, some equipment only uses liquid nozzles to spray wastewater for combustion, or only incinerates solid waste residue. These types of equipment suffer from incomplete combustion and uneven air distribution within the furnace, which can easily lead to localized coking and blockage, and they are poorly adaptable to mixed solid-liquid wastewater.

[0004] Regarding the aforementioned technologies, the applicant believes that they have shortcomings such as inefficient co-processing of desulfurization wastewater in different states and insufficient combustion stability. Utility Model Content

[0005] To address the aforementioned technical problems, this application provides a coking desulfurization waste liquid incineration device.

[0006] This application provides a coking desulfurization waste liquid incineration device, which adopts the following technical solution:

[0007] A coking desulfurization wastewater incineration device includes a first furnace body and a phase change separation device. One end of the first furnace body is installed on one side of the upper part of the phase change separation device, and the first furnace body is connected to the phase change separation device. An air distribution port is provided at the other end of the first furnace body. An integrated liquid combustion device is provided at the top end of the first furnace body near the phase change separation device and is inserted into the first furnace body. An integrated solid combustion device is provided at the bottom end of the first furnace body near the air distribution port and is inserted into the first furnace body. A solid feed inlet is provided at the top end of the first furnace body near the air distribution port.

[0008] By adopting the above technical solution, the equipment is equipped with both an integrated liquid combustion device and an integrated solid combustion device, and has a solid feed inlet. Liquid materials are atomized and burned through the integrated liquid combustion device, while solid materials are fed through the solid feed inlet and ignited by the integrated solid combustion device. The air distribution port at one end of the first furnace body can provide sufficient oxygen for combustion, reducing pollutants generated due to incomplete combustion. The phase change separation device is connected to the first furnace body and can separate the products after incineration. Through the phase change process, gaseous, liquid and solid substances can be effectively distinguished, further reducing pollutant emissions and enhancing combustion stability and environmental performance.

[0009] Preferably, a gas distributor is provided inside the first furnace body on one side of the air distribution port. The gas distributor is a porous distribution plate, which is fixedly connected to the first furnace body.

[0010] By adopting the above technical solution, the porous distribution plate, through its dense perforated structure, redistributes the combustion air entering from the air distribution port. The uneven local wind speed that might have been caused by differences in the location of the air distribution port and the airflow velocity will be dispersed and diverted by the porous plate, so that the gas is evenly diffused across the cross-section of the furnace body.

[0011] Preferably, the integrated liquid combustion device includes a first outer shell, a waste liquid atomizing nozzle, a fuel burner, and an atomizing medium channel. The first outer shell is inserted into and connected to the inside of a first furnace body. A waste liquid inlet is provided on the top of the first outer shell, and a first fuel inlet is provided on the first outer shell on one side of the waste liquid inlet. The atomizing medium channel, the waste liquid atomizing nozzle, and the fuel burner assembly are all installed inside the first outer shell. One end of the atomizing medium channel is fixedly connected to the waste liquid inlet, and the other end of the atomizing medium channel is fixedly connected to the waste liquid atomizing nozzle. The waste liquid atomizing nozzle is fixedly connected inside the first outer shell, and the fuel burner is installed on the first outer shell below the waste liquid atomizing nozzle. A first outlet is provided at the bottom of the first outer shell.

[0012] By adopting the above technical solution, the atomizing medium channel is directly connected to the waste liquid inlet and the waste liquid atomizing nozzle. The liquid desulfurization waste liquid can be forcibly atomized by atomizing media such as high-pressure steam and compressed air. The atomized waste liquid forms fine droplets, which can make more full contact with the combustion air. The precise layout of the waste liquid atomizing nozzle ensures that the atomized droplets are evenly distributed in the furnace. The fuel burner is independently set below the waste liquid atomizing nozzle. Auxiliary fuel can be introduced through the first fuel inlet. The stable combustion of the fuel burner provides a continuous high-temperature heat source, ensuring that the waste liquid is always stably burned above the ignition temperature.

[0013] Preferably, the integrated solid combustion device includes a second outer casing and a burner. The second outer casing is inserted into and connected to the bottom of the first furnace body. A second fuel inlet is provided on one side of the second outer casing outside the first furnace body. The burner is fixedly connected to the second outer casing inside the first furnace body.

[0014] By adopting the above technical solution, auxiliary fuel is connected through the second fuel inlet, and the burner is stably installed on the second outer shell inside the first furnace body. It can accurately locate the combustion zone. The high temperature released by the burner can quickly dry the moisture in the solid material, accelerate the pyrolysis and volatilization of the combustible components in the material, form a good mixture of combustible gas and air, promote the efficient combustion reaction, and make the solid material burn as completely as possible.

[0015] Preferably, the phase change separation device includes a second furnace body and a furnace tube. The furnace tube is fixedly connected to the inner wall of the second furnace body. An ash collection port is provided at the bottom of the second furnace body, and a gas outlet is provided on one side of the lower part of the second furnace body.

[0016] By adopting the above technical solution, the furnace tube is fixedly connected to the inner wall of the second furnace body, which can increase the heat transfer area inside the furnace. The bottom of the second furnace body is provided with a furnace ash collection port, which facilitates the collection and cleaning of solid waste such as furnace ash generated during combustion. As the gas generated during combustion rises inside the furnace, after passing through the furnace tube heat exchange process, heavier impurities and furnace ash will settle to the bottom of the furnace, while lighter gas will be discharged from the gas outlet on the lower side, which is conducive to achieving gas-solid separation.

[0017] Preferably, the first furnace body and the second furnace body are composed of two-layer structures. Both the first furnace body and the second furnace body include a brick wall inner lining layer and an outer shell layer, and the outer shell layer is fixedly connected to the outside of the brick wall inner lining layer.

[0018] By adopting the above technical solutions, the inner lining of the brick wall is usually made of materials with high temperature resistance and good heat insulation performance, such as refractory bricks, which can effectively reduce the loss of heat from the furnace to the outside. This can not only improve energy utilization and reduce heat waste, but also maintain a stable high temperature environment inside the furnace, which is conducive to the stable combustion process and reduces operating costs. The outer shell is generally made of metal or other high-strength materials. It is fixed to the outside of the inner lining of the brick wall and can provide solid support and protection for the furnace body.

[0019] Preferably, a denitrification device is provided on the top of the second furnace body.

[0020] By adopting the above technical solutions, the denitrification device can use technologies such as selective catalytic reduction to chemically react the reducing agent with the nitrogen oxides in the flue gas, converting them into harmless nitrogen and water vapor, thereby significantly reducing nitrogen oxide emissions and ensuring that the exhaust gas emissions meet environmental protection standards.

[0021] Preferably, the denitrification device includes a reducing agent storage tank, a conveying pipeline, and an injection gun. One end of the conveying pipeline is connected to the reducing agent storage tank, and the other end of the conveying pipeline is connected to the injection gun. The conveying pipeline is inserted and installed inside the first furnace body, and a regulating pump is provided on the conveying pipeline.

[0022] By adopting the above technical solution, the reducing agent in the reducing agent storage tank can be accurately delivered to the high-temperature flue gas area in the second furnace body through the delivery pipeline and the spray gun. The spray gun can spray the reducing agent evenly, so that it can fully contact the nitrogen oxides. Under high temperature environment, the reducing agent and nitrogen oxides will quickly undergo a reduction reaction, converting the nitrogen oxides into nitrogen and water, which can effectively reduce nitrogen oxide emissions. The regulating pump installed on the delivery pipeline can flexibly adjust the delivery amount of the reducing agent according to the actual combustion conditions and nitrogen oxide concentration in the first furnace body.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] The equipment is equipped with both an integrated liquid combustion device and an integrated solid combustion device, and has a solid feed inlet. Liquid materials are atomized and burned through the integrated liquid combustion device, while solid materials are fed through the solid feed inlet and ignited by the integrated solid combustion device. The air distribution port at one end of the first furnace body can provide sufficient oxygen for combustion, reducing pollutants generated due to incomplete combustion. The phase change separation device is connected to the first furnace body and can separate the products after incineration. Through the phase change process, gaseous, liquid and solid substances can be effectively distinguished, further reducing pollutant emissions and enhancing combustion stability and environmental performance.

[0025] The atomizing medium channel is directly connected to the waste liquid inlet and the waste liquid atomizing nozzle. It can force atomize the liquid desulfurization waste liquid through atomizing media such as high-pressure steam and compressed air. The atomized waste liquid forms fine droplets, which can make more complete contact with the combustion air. The precise layout of the waste liquid atomizing nozzle ensures that the atomized droplets are evenly distributed in the furnace. The fuel burner is independently set below the waste liquid atomizing nozzle. Auxiliary fuel can be introduced through the first fuel inlet. The stable combustion of the fuel burner provides a continuous high-temperature heat source, ensuring that the waste liquid always burns stably above the ignition temperature. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure in the embodiment.

[0027] Figure 2 This is a cross-sectional schematic diagram of the overall internal structure in the embodiment.

[0028] Explanation of reference numerals in the attached drawings: 1. First furnace body; 11. Air distribution port; 12. Integrated liquid combustion device; 121. First outer shell; 122. Waste liquid atomizing nozzle; 123. Fuel burner; 124. Atomizing medium channel; 125. Waste liquid inlet; 126. First fuel inlet; 127. First outlet; 13. Integrated solid combustion device; 131. Second outer shell; 132. Burner; 133. Second fuel inlet; 14. Solid feed inlet; 15. Gas distributor; 151. Perforated distribution plate; 2. Phase change separation device; 21. Second furnace body; 22. Furnace tube; 23. Ash collection port; 24. Gas outlet; 3. Brick wall lining layer; 4. Outer shell layer; 5. Denitrification device; 51. Reducing agent storage tank; 52. Conveying pipeline; 53. Injection gun; 54. Regulating pump. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0030] This application discloses a coking desulfurization waste liquid incineration device. (Refer to...) Figure 1 and Figure 2 The incineration unit includes a first furnace body 1 and a phase change separation device 2. The phase change separation device 2 includes a second furnace body 21 and a furnace tube 22. One end of the first furnace body 1 is installed on the upper side of the second furnace body 21. The first furnace body 1 and the second furnace body 21 are connected. The first furnace body 1 and the second furnace body 21 are composed of two-layer structures. The inner layer of the first furnace body 1 and the second furnace body 21 are both brick wall lining layers 3. An outer shell layer 4 is provided on the outside of the brick wall lining layers 3 of the first furnace body 1 and the second furnace body 21. The outer shell layer 4 is fixedly connected to the brick wall lining layer 3. The furnace tube 22 is fixedly connected to the inside of the second furnace body 21 to fully conduct heat. A gas outlet 24 is provided on the lower side of the second furnace body 21. The gas outlet 24 is connected to the inside of the second furnace body 21. An ash collection port 23 is provided at the bottom of the second furnace body 21 to realize solid-gas separation of the incineration equipment.

[0031] An air distribution port 11 is provided at the other end of the first furnace body 1. The air distribution port 11 supplies air to the first furnace body 1 and the interior of the second furnace body 21 through a fan. An integrated solid combustion device 13 is provided at the bottom of the first furnace body 1 near the air distribution port 11. The integrated solid combustion device 13 includes a second outer shell 131 and a burner 132. One end of the second outer shell 131 is inserted into the interior of the first furnace body 1 and is detachably connected to the first furnace body 1. The burner 132 is fixedly connected to one end of the second outer shell 131 inside the first furnace body 1. The other end of the second outer shell 131 is located outside the first furnace body 1. A second fuel inlet 133 is provided at the other end of the second outer shell 131. Fuel enters the second outer shell 131 through the second fuel inlet 133, causing the burner 132 to heat the interior of the first furnace body 1. A solid feed inlet 14 is provided at the top of the first furnace body 1 near the air distribution port 11. Solid waste is added into the first furnace body 1 through the solid feed inlet 14.

[0032] An integrated liquid combustion device 12 is installed on the top of the first furnace body 1 near the end of the second furnace body 21. The integrated liquid combustion device 12 includes a first outer shell 121, a waste liquid atomizing nozzle 122, a fuel burner 123, and an atomizing medium channel 124. One end of the first outer shell 121 is inserted into the first furnace body 1, and the first furnace body 1 and the first outer shell 121 are detachably connected. A waste liquid inlet 125 is provided on the top of the first outer shell 121, and a first fuel inlet 126 is provided on the first outer shell 121 on one side of the waste liquid inlet 125. The atomizing medium channel 124, the waste liquid atomizing nozzle 122, and the fuel burner 123 are all installed inside the first outer shell 121. One end of the atomizing medium channel 124 is fixedly connected to the waste liquid inlet 125, and the other end of the atomizing medium channel 124 is fixedly connected to the waste liquid atomizing nozzle 122. Waste liquid atomization... Nozzle 122 is fixedly connected inside the first outer shell 121. Fuel burner 123 is installed on the first outer shell 121 below the waste liquid atomizing nozzle 122. Fuel burner 123 is fixedly connected to the first outer shell 121. A first outlet 127 is provided at the bottom of the first outer shell 121. After atomization, the waste liquid is heated and vaporized and enters the first furnace body 1 through the first outlet 127. A denitrification device 5 is provided at the top of the second furnace body 21. The denitrification device 5 includes a reducing agent storage tank 51, a conveying pipeline 52, and a spray gun 53. The reducing agent storage tank 51 is bolted to the top of the second furnace body 21. The conveying pipeline 52 is inserted and installed inside the second furnace body 21. One end of the conveying pipeline 52 is detachably connected to the conveying pipeline 52. The spray gun 53 is installed on the other end of the conveying pipeline 52. The spray gun 53 is detachably connected to the conveying pipeline 52. A regulating pump 54 is provided on the conveying pipeline 52.

[0033] The working principle of the coking desulfurization waste liquid incineration equipment in this application is as follows: Solid waste enters the first furnace body 1 through the solid feed inlet 14, and fuel enters the second outer shell 131 through the second fuel inlet 133 of the integrated solid combustion device 13. The burner 132 operates, heating the inside of the first furnace body 1 to burn the solid waste. Waste liquid enters the first outer shell 121 through the waste liquid inlet 125 at the top of the integrated liquid combustion device 12. Under the action of the atomizing medium channel 124 and the waste liquid atomizing nozzle 122, it is atomized. The fuel burner 123 is ignited, heating and vaporizing the atomized waste liquid, which then enters the first furnace body 1 for combustion through the first outlet 127. The air distribution port 11 supplies air to the first furnace body 1 and the second furnace body 21 through a fan, providing sufficient oxygen for combustion. The air blown in by the air distribution port 11 enters the integrated liquid combustion device 12 through the first outlet 127, aiding combustion. The combustion of waste liquid in the first furnace body 1 generates high-temperature flue gas and heat, which is then transferred to the second furnace body 21. The furnace tubes 22 inside the second furnace body 21 can fully conduct heat, allowing the substances inside the second furnace body 21 to react or be heated further. Flue gas and other substances undergo phase change separation within the second furnace body 21, and solid particles and other impurities gradually settle to the bottom of the second furnace body 21 and are collected through the ash collection port 23, achieving solid-gas separation. The separated gas is discharged from the gas outlet 24 on the lower side of the second furnace body 21. The denitrification device 5 at the top of the second furnace body 21 is used to treat nitrogen oxides generated during combustion. The reducing agent in the reducing agent storage tank 51 is injected into the second furnace body 21 through the injection gun 53 via the delivery pipeline 52 and the regulating pump 54, where it reacts with the nitrogen oxides, converting them into harmless or low-harm substances, reducing the nitrogen oxide content in the exhaust gas, and meeting environmental emission requirements.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A coking desulfurization waste liquid incineration device, characterized in that: The furnace includes a first furnace body (1) and a phase change separation device (2). One end of the first furnace body (1) is installed on one side of the upper part of the phase change separation device (2). The first furnace body (1) is connected to the phase change separation device (2). The other end of the first furnace body (1) is provided with an air distribution port (11). An integrated liquid combustion device (12) is provided on the top end of the first furnace body (1) near the phase change separation device (2). The integrated liquid combustion device (12) is inserted and installed inside the first furnace body (1). An integrated solid combustion device (13) is provided on the bottom end of the first furnace body (1) near the air distribution port (11). The integrated solid combustion device (13) is inserted and installed inside the first furnace body (1). A solid feed port (14) is provided on the top end of the first furnace body (1) near the air distribution port (11).

2. The coking desulfurization waste liquid incineration equipment according to claim 1, characterized in that: A gas distributor (15) is provided inside the first furnace body (1) on one side of the air outlet (11). The gas distributor (15) is a porous distribution plate (151) and is fixedly connected to the first furnace body (1).

3. The coking desulfurization waste liquid incineration equipment according to claim 1, characterized in that: The integrated liquid combustion device (12) includes a first outer shell (121), a waste liquid atomizing nozzle (122), a fuel burner (123), and an atomizing medium channel (124). The first outer shell (121) is inserted into the interior of the first furnace body (1). A waste liquid inlet (125) is provided on the top of the first outer shell (121), and a first fuel inlet (126) is provided on one side of the first outer shell (121) next to the waste liquid inlet (125). The atomizing medium channel (124), the waste liquid atomizing nozzle (122), and the fuel burner... The nozzle (123) assembly is installed inside the first housing (121). One end of the atomizing medium channel (124) is fixedly connected to the waste liquid inlet (125), and the other end of the atomizing medium channel (124) is fixedly connected to the waste liquid atomizing nozzle (122). The waste liquid atomizing nozzle (122) is fixedly connected inside the first housing (121). The fuel burner (123) is installed on the first housing (121) below the waste liquid atomizing nozzle (122). The bottom of the first housing (121) is provided with a first outlet (127).

4. The coking desulfurization waste liquid incineration equipment according to claim 1, characterized in that: The integrated solid combustion device (13) includes a second outer shell (131) and a burner (132). The second outer shell (131) is inserted and connected to the bottom of the first furnace body (1). A second fuel inlet (133) is provided on one side of the second outer shell (131) outside the first furnace body (1). The burner (132) is fixedly connected to the second outer shell (131) inside the first furnace body (1).

5. The coking desulfurization waste liquid incineration equipment according to claim 1, characterized in that: The phase change separation device (2) includes a second furnace body (21) and a furnace tube (22). The furnace tube (22) is fixedly connected to the inner wall of the second furnace body (21). The bottom of the second furnace body (21) is provided with a furnace ash collection port (23), and a gas outlet (24) is provided on one side of the lower part of the second furnace body (21).

6. The coking desulfurization waste liquid incineration equipment according to claim 1, characterized in that: The first furnace body (1) and the second furnace body (21) are composed of two layers. The first furnace body (1) and the second furnace body (21) both include a brick wall inner lining layer (3) and an outer shell layer (4). The outer shell layer (4) is fixedly connected to the outside of the brick wall inner lining layer (3).

7. The coking desulfurization waste liquid incineration equipment according to claim 5, characterized in that: A denitrification device (5) is provided on the top of the second furnace body (21).

8. The coking desulfurization waste liquid incineration equipment according to claim 7, characterized in that: The denitrification device (5) includes a reducing agent storage tank (51), a conveying pipeline (52), and a spray gun (53). One end of the conveying pipeline (52) is connected to the reducing agent storage tank (51), and the other end of the conveying pipeline (52) is connected to the spray gun (53). The conveying pipeline (52) is inserted and installed inside the first furnace body (1). A regulating pump (54) is provided on the conveying pipeline (52).

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