A wastewater incineration device with multi-stage combustion and large processing capacity

Abstract

The present invention provides a wastewater incineration device with multi-stage combustion and large processing capacity, which includes a device body, a combustion chamber, a burner, at least two jackets, at least two stages of fuel injectors, and at least two stages of wastewater injectors; the jacket is mounted on the device body and located at the combustion chamber, and the at least two jackets are arranged in sequence along the extension direction of the device body, each jacket is connected to the combustion chamber via a connecting hole, and each jacket is connected to an air pipeline; the fuel injectors are arranged at the jacket and extend to the combustion chamber via the connecting hole, and each stage of fuel injectors corresponds to the jacket one-to-one; the at least two stages of wastewater injectors and the at least two stages of fuel injectors are arranged alternately along the extension direction of the device body. The wastewater incineration device provided by the present invention can control the combustion temperature of the combustion chamber to ensure a relatively uniform temperature field distribution in the combustion chamber. This can oxidize and decompose toxic and harmful substances in the wastewater at high temperature, reducing the generation of thermal nitrogen oxides.

Description

Technical Field

[0001] The present invention relates to the technical field of waste treatment, and more particularly to a wastewater incineration device with multi-stage combustion and large treatment capacity. Background Art

[0002] Existing incinerators typically feature centralized fuel and wastewater arrangements. This can lead to localized overheating or overheating within the furnace when incinerating large volumes of wastewater. High temperatures in the combustion zone can dramatically increase the generation of thermal nitrogen oxides (NOx), shortening the service life of the furnace lining and, in severe cases, causing it to collapse, directly impacting the long-term, stable operation of the equipment. Furthermore, low temperatures in the furnace caused by the centralized injection of large volumes of wastewater can lead to incomplete decomposition and oxidation of toxic and hazardous substances in the wastewater, resulting in excessive flue gas emissions and failure to meet environmental emission standards.

[0003] Therefore, a wastewater incineration device with multi-stage combustion and large processing capacity is needed to at least partially solve the problems existing in the prior art. Summary of the Invention

[0004] The Summary of the Invention introduces a series of simplified concepts that will be further described in the Detailed Description of the Invention. The Summary of the Invention is not intended to limit the key features and essential features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] In order to at least partially solve the above problems, according to one aspect of the present invention, a wastewater incineration device with multi-stage combustion and large processing capacity is provided, which comprises:

[0006] a device body having a first end and a second end opposite the first end;

[0007] a combustion chamber disposed within the device body and proximate the first end of the device body;

[0008] a burner disposed at the first end of the device body;

[0009] At least two jackets, each jacket being mounted on the device body and located at the combustion chamber, the at least two jackets being arranged sequentially from the first end along an extension direction of the device body, each jacket being in communication with the combustion chamber via a communicating hole, and each jacket being connected to an air pipeline;

[0010] at least two stages of fuel injectors, the fuel injectors being disposed at the jacket and extending to the combustion chamber via the communicating holes, each stage of the fuel injectors corresponding one-to-one to the jacket; and

[0011] At least two stages of wastewater injectors, wherein the at least two stages of wastewater injectors and the at least two stages of fuel injectors are alternately arranged along the extension direction of the device body.

[0012] This solution uses a staggered arrangement of fuel and wastewater injectors and staged air delivery to control the combustion temperature in the combustion chamber, ensuring a relatively uniform temperature distribution. This allows for high-temperature oxidation and decomposition of toxic and hazardous substances in the wastewater, reducing the formation of thermal nitrogen oxides, extending the service life of the incinerator, and ensuring that flue gas emissions meet environmentally friendly emission standards.

[0013] Optionally, each stage of fuel injectors is arranged between two adjacent stages of wastewater injectors; or a stage-one wastewater injector is arranged upstream of a corresponding stage-one fuel injector.

[0014] Optionally, an air preheater is further included, which is arranged in the device body and located at the rear of the device body. The air pipeline passes through the air preheater to preheat the air.

[0015] Therefore, by setting up an air preheater, the waste heat of the flue gas can be fully recovered to heat the air, reducing the consumption of auxiliary fuel and thus reducing the operating cost of the incineration device.

[0016] Optionally, a waste heat boiler is further included, wherein the waste heat boiler is arranged downstream of the combustion chamber, and the air preheater is arranged between the high-temperature heating surface and the low-temperature heating surface of the waste heat boiler.

[0017] Therefore, on the one hand, the waste heat of the flue gas is fully recovered through the matching waste heat boiler; on the other hand, the temperature of the flue gas between the high-temperature heating surface and the low-temperature heating surface of the waste heat boiler is used to heat the air to obtain air of appropriate temperature.

[0018] Optionally, the high-temperature heating surface includes at least one of an evaporator and a superheater, and the low-temperature heating surface includes at least one of an economizer and a smoke cooler; and / or

[0019] At least one soot blower is provided in the waste heat boiler to remove soot deposits on the various heating surfaces of the waste heat boiler and ensure the heat exchange effect between the flue gas and the heat exchange medium.

[0020] Optionally, each stage of the fuel injector comprises at least two fuel injectors, and the at least two fuel injectors are spaced apart along the circumferential direction of the device body; and / or

[0021] Each stage of the wastewater ejectors includes at least two wastewater ejectors, and the at least two wastewater ejectors are spaced apart along the circumferential direction of the device body.

[0022] Optionally, the device body is constructed to include at least two horizontal segments extending horizontally and at least one vertical segment extending vertically, the vertical segments are arranged alternately with the horizontal segments and are connected to each other, the horizontal segments do not overlap on the horizontal plane, and the combustion chamber is arranged at the horizontal segment.

[0023] Optionally, another air pipeline is connected to the burner, and a valve is provided on each of the air pipelines connected to the jacket and the burner.

[0024] Optionally, a reduction chamber is further included, the reduction chamber is arranged in the device body and is located downstream of the combustion chamber, the device body is provided with a reducing agent pipeline, the reducing agent pipeline is connected to the reduction chamber; and / or

[0025] The device further comprises a denitrification device, which is arranged in the device body and located at the rear of the device body, thereby removing nitrogen oxides from the flue gas and purifying the flue gas, achieving the dual effects of energy saving and environmental protection.

[0026] Optionally, at least the portion of the device body forming the combustion chamber comprises a lining. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The following drawings of the present invention are hereby incorporated into the present invention for understanding the present invention. The drawings show embodiments of the present invention and their descriptions, and are used to explain the device and principle of the present invention. In the drawings,

[0028] Figure 1 A schematic structural diagram of an incineration device according to a preferred embodiment of the present invention

[0029] Figure 2 for Figure 1 An enlarged schematic diagram of the front part of the incineration device is shown in FIG.

[0030] Description of Reference Numerals

[0031] 100: Wastewater incineration device 101: Device body

[0032] 102: First end 103: Second end

[0033] 105: Waste heat boiler 110: Combustion chamber

[0034] 111: Flame furnace 112: Oxidation furnace

[0035] 130: Burner 140: Fuel injector

[0036] 141: First stage fuel injector 142: Second stage fuel injector

[0037] 143: Three-stage fuel injector 150: Wastewater injector

[0038] 151: Primary wastewater ejector 152: Secondary wastewater ejector

[0039] 153: Three-stage wastewater ejector 154: Four-stage wastewater ejector

[0040] 160: Jacket 161: First Jacket

[0041] 162: Second jacket 163: Third jacket

[0042] 170: Air line 171: Branch line

[0043] 172: Valve 181: Reduction chamber

[0044] 182: Reductant pipeline 183: Air preheater

[0045] 184: Blower 185: Denitrification device

[0046] 186: Sootblower 187: Dust collector

[0047] 189: induced draft fan 190: chimney

[0048] 104: Incinerator DETAILED DESCRIPTION

[0049] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without one or more of these details. In other instances, certain technical features well known in the art are not described to avoid confusion with the present invention.

[0050] To provide a thorough understanding of the present invention, a detailed structure will be provided in the following description to illustrate the present invention. Obviously, the practice of the present invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of the present invention are described in detail below. However, in addition to these detailed descriptions, the present invention may also have other embodiments and should not be construed as being limited to the embodiments set forth herein.

[0051] It should be understood that the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention. The singular forms "a", "an" and "said / the" are also intended to include the plural forms, unless the context clearly indicates otherwise. When the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof. The terms "upper", "lower", "front", "back", "left", "right" and similar expressions used in the present invention are for illustrative purposes only and are not limiting.

[0052] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of a "second component", and the term "second component" itself does not imply the existence of a "first component".

[0053] Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the accompanying drawings. These drawings illustrate representative embodiments of the present invention and do not limit the present invention.

[0054] like Figure 1 and Figure 2 As shown, the present invention provides a multi-stage combustion and large-capacity wastewater incineration device 100 for incinerating wastewater, particularly for incinerating large-flow wastewater. Of course, if necessary and / or desired, the incineration device can also be used to incinerate waste liquid or waste gas.

[0055] The wastewater incineration device 100 includes a device body 101, an incinerator 104, and a waste heat boiler 105. Both the incinerator 104 and the waste heat boiler 105 can be formed on the device body 101. The waste heat boiler 105 is disposed downstream of the incinerator 104. The incinerator 104 includes a combustion chamber 110. In other words, the wastewater incineration device 100 of this embodiment is a wastewater incineration device equipped with a waste heat boiler 105, or in other words, the incinerator and the waste heat boiler 105 constitute a single incineration device.

[0056] The incinerator 104 includes a combustion chamber 110. The combustion chamber 110 can be located near the first end 102 of the device body 101, and the waste heat boiler 105 can be located near the second end 103 of the device body 101, opposite the first end 102. The wastewater incineration device 100 also includes a burner 130, a fuel injector 140, and a wastewater injector 150. The burner 130 is located at the first end 102 and is used to generate a flame. The fuel injector 140 is used to provide fuel, and the wastewater injector 150 is used to introduce wastewater into the combustion chamber 110. Both the fuel injector 140 and the wastewater injector 150 are located downstream of the burner 130.

[0057] Specifically, the combustion chamber 110 may include a flame hearth 111 and an oxidation hearth 112, which are arranged in sequence and communicate with each other. A burner 130 may be disposed on the flame hearth 111. A fuel injector 140 and a wastewater injector 150 may be disposed on the flame hearth 111 and the oxidation hearth 112. At least the portion of the apparatus body 101 that forms the combustion chamber 110 may be constructed from a steel plate shell and an inner lining. In other words, both the flame hearth 111 and the oxidation hearth 112 may be constructed from a steel plate shell and an inner lining.

[0058] The burner 130 may be equipped with at least two flame detectors, for example, two or three flame detectors. The burner 130 also serves as a pilot light, improving the combustion safety and stability of the wastewater incineration apparatus 100. The burner 130 may be a core burner 130. The fuel injector 140 and the wastewater injector 150 may be spray guns. An air line 170 is provided in the combustion chamber 110 and communicates with the combustion chamber 110 to deliver combustion air.

[0059] In this embodiment, the wastewater incineration device 100 may include at least two jackets 160. Jackets 160 are mounted on the device body 101 and positioned at the combustion chamber 110. The at least two jackets 160 are arranged sequentially along the extension direction of the device body 101. Each jacket 160 communicates with the combustion chamber 110 via a connecting hole. Each jacket 160 is connected to an air line 170. This allows for staged air delivery. In other words, air can be delivered to the combustion chamber 110 at at least two locations along the extension direction of the device body 101. This ensures uniform air distribution, facilitating rapid combustion.

[0060] The wastewater incineration device 100 can be provided with at least two stages of fuel injectors 140 and at least two stages of wastewater injectors 150. The at least two stages of wastewater injectors 150 and the at least two stages of fuel injectors 140 can be arranged alternately along the extension direction of the device body 101. In this article, the structure of the device body 101 limits the flow direction of the fluid in the device. It can be understood that the extension direction of the device body 101 is roughly the same as the flow direction of the fluid. In this embodiment, the fuel injectors 140 and the wastewater injectors 150 are arranged in stages, which can control the incineration temperature of the combustion chamber 110, ensure that the temperature field in the combustion chamber 110 is relatively evenly distributed, and avoid the problem of excessively high or low local temperature in the furnace caused by the centralized arrangement of fuel or low calorific value wastewater. In this way, toxic and harmful substances in the wastewater can be oxidized and decomposed at high temperature, reducing the generation of thermal nitrogen oxides and the collapse of the furnace lining, extending the service life of the wastewater incineration device 100, and ensuring that the flue gas meets environmental emission requirements.

[0061] The fuel injectors 140 can be positioned on the jacket 160 and extend into the combustion chamber 110 via a connecting hole. In other words, the fuel injectors 140 and air can enter the combustion chamber 110 through a single hole, allowing the air to first come into contact with the fuel, thereby enhancing combustion support. Each stage of fuel injectors 140 can correspond one-to-one with a jacket 160 . Therefore, it can be understood that the fuel injectors 140 on a jacket 160 form a single stage of fuel injectors 141 .

[0062] Each stage of fuel injectors 140 is disposed between two adjacent stages of wastewater injectors 150, that is, the primary fuel injector 141 is located between the primary wastewater injector 151 and the secondary wastewater injector 152, and the secondary fuel injector 142 is located between the secondary wastewater injector 152 and the tertiary wastewater injector 153. The wastewater injectors 150 and fuel injectors 140 of each stage are arranged in this manner. Alternatively, the primary wastewater injector 151 may be disposed upstream of the corresponding primary fuel injector 141, that is, the primary wastewater injector 151 is disposed upstream of the primary fuel injector 141, and the secondary wastewater injector 152 is disposed upstream of the secondary fuel injector 142. The wastewater injectors 150 and fuel injectors 140 of each stage are arranged in this manner.

[0063] In this embodiment, the number of wastewater injectors 150 and fuel injectors 140 provided is not limited and can be arbitrarily set as needed. For example, in the illustrated embodiment, based on the wastewater flow rate and fuel consumption, four stages of wastewater injectors 154 and three stages of fuel injectors 143 are provided. These four stages of wastewater injectors 154 and three stages of fuel injectors 143 are alternately arranged along the extension direction of the device body 101, i.e., the first stage of wastewater injectors 151, the first stage of fuel injectors 141, the second stage of wastewater injectors 152, the second stage of fuel injectors 142, the third stage of wastewater injectors 153, the third stage of fuel injectors 143, and the fourth stage of wastewater injectors 154 are arranged in this order. The first stage of fuel injectors 141 is provided on the first jacket 161, the second stage of fuel injectors 142 is provided on the second jacket 162, and the third stage of fuel injectors 143 is provided on the third jacket 163.

[0064] Each stage of fuel injectors 140 can include at least two fuel injectors 140, which can be spaced apart along the circumference of the device body 101. This embodiment increases the number of fuel injection positions per stage, further evenly distributing the fuel within the combustion chamber 110. Each stage of wastewater injectors 150 can include at least two wastewater injectors 150, which can be spaced apart along the circumference of the device body 101. This embodiment increases the number of wastewater injection positions per stage, further evenly distributing the wastewater within the combustion chamber 110.

[0065] An air line 170 may also be connected to the burner 130. The air line 170 may branch into multiple lines, with the multiple branch lines 171 respectively communicating with the burner 130 and at least two jackets 160. A valve 172 is provided on each air line 170 connecting the jacket 160 and the burner 130, i.e., each branch line 171 is provided with a valve 172, so that the air flow rate of each branch line 171 can be adjusted separately through the valve 172.

[0066] The wastewater incineration device 100 also includes a reduction chamber 181, which is arranged in the device body 101 and is located downstream of the combustion chamber 110, specifically downstream of the oxidation furnace 112. The reduction chamber 181 is part of the incinerator 104. A reducing agent pipeline 182 is provided on the device body 101, and the reducing agent pipeline 182 is connected to the reduction chamber 181, thereby forming a reducing agent nozzle in the reduction chamber 181. The reducing agent is transported to the reduction chamber 181 via the reducing agent pipeline 182 and is sprayed into the reducing agent nozzle. In the reduction chamber 181, the temperature of the flue gas can be between 900°C and 1050°C, reaching a temperature suitable for selective non-catalytic reduction. The injected reducing agent can reduce nitrogen oxides in the flue gas into nitrogen gas. The reducing agent can be ammonia water.

[0067] The waste heat boiler 105 is arranged downstream of the reduction chamber 181. The waste heat boiler 105 can be provided with a plurality of high-temperature heating surfaces (not shown) and low-temperature heating surfaces (not shown) to recover the heat of the high-temperature flue gas after incineration to achieve the purpose of energy saving. Boiler feed water can be delivered to the waste heat boiler 105, and the boiler feed water forms saturated steam or superheated steam after passing through the waste heat boiler 105. A boiler feed water port and a hot fluid outlet are provided at the rear of the device body 101. The high-temperature heating surface can include an evaporator. The low-temperature heating surface can include an economizer. Of course, the high-temperature heating surface can also include a superheater; the low-temperature heating surface can also include a flue gas cooler.

[0068] The wastewater incineration device 100 also includes an air preheater 183. The air preheater 183 is arranged in the device body 101 and is located at the rear of the device body 101. The air pipeline 170 passes through the air preheater 183, and the air and flue gas exchange heat in the air preheater 183 to preheat the air. The heated air is transported to the burner 130 and the combustion chamber 110 via the air pipeline 170. With this embodiment, the consumption of auxiliary fuel can be reduced, thereby reducing the operating cost of the wastewater incineration device 100. In the illustrated embodiment, the air preheater 183 is arranged between the high-temperature heating surface and the low-temperature heating surface of the waste heat boiler 105. In this way, the temperature of the flue gas between the high-temperature heating surface and the low-temperature heating surface of the waste heat boiler 105 can be used to heat the air to obtain air of a suitable temperature. For example, the air and flue gas can be preheated to approximately 350°C to 450°C after heat exchange, such as 350°C, 360°C, 380°C, 400°C, 420°C, or 450°C. In one exemplary embodiment, the air preheater 183 can be positioned between the evaporator and the economizer. Of course, the position of the air preheater 183 can be adjusted as needed.

[0069] Air pipeline 170 can be connected to blower 184, which delivers ambient air into air pipeline 170. Air pipeline 170 sequentially passes through at least two air preheaters 183, performing at least two stages of heat exchange. In the illustrated embodiment, air pipeline 170 sequentially passes through two air preheaters 183 arranged one above the other, performing two stages of heat exchange.

[0070] The wastewater incineration device 100 also includes a denitrification device 185, which is disposed within the device body 101 and near the second end 103 of the device body 101, opposite the first end 102. Specifically, the denitrification device 185 can be disposed between the high-temperature and low-temperature heating surfaces of the waste heat boiler 105, downstream of the air heat exchanger. This allows the temperature of the flue gas between the high-temperature and low-temperature heating surfaces of the waste heat boiler 105 to provide a suitable operating temperature for the catalyst within the denitrification device 185, enabling the denitrification reaction to occur at a suitable temperature, for example, between 300°C and 400°C, such as 300°C, 320°C, 340°C, 350°C, 360°C, 380°C, or 400°C. This embodiment can remove nitrogen oxides from the flue gas, purifying the flue gas and meeting environmental emission standards. The denitrification device 185 can be an SCR (Selective Catalytic Reduction) denitrification device.

[0071] At least one sootblower 186 is installed within the waste heat boiler 105 to remove ash from the heating surfaces, enhancing the heat exchange between the flue gas and the heat exchange medium. Sootblowers 186 are located on both the high-temperature and low-temperature heating surfaces. The illustrated embodiment shows two sootblowers 186: one located upstream of the air preheater 183 and the other located downstream of the denitrification device 185. The boiler feedwater inlet and hot fluid outlet can be located at the sootblowers 186 downstream of the denitrification device 185.

[0072] Wastewater incineration apparatus 100 may also include a dust collector 187 and an induced draft fan 189. Dust collector 187 is located at the outlet of the low-temperature heating surface of waste heat boiler 105, before the inlet pipeline of induced draft fan 189. Draft fan 189 is connected to chimney 190 via a pipeline. Dust collector 187 removes particulate matter from the flue gas after incineration, ensuring that the final particulate matter emission concentration meets environmental standards before being discharged into the atmosphere through induced draft fan 189 and chimney 190. Draft fan 189 uses variable frequency control to maintain negative pressure throughout the entire apparatus to prevent the escape of harmful gases.

[0073] The device body 101 of this embodiment is constructed as a curved structure with multiple bends, including at least two horizontal sections extending horizontally and at least one vertical section extending vertically, and the vertical sections are arranged alternately with the horizontal sections and are connected to each other. The horizontal sections do not overlap on the horizontal plane. In other words, the downstream horizontal section is not located above the upstream horizontal section. With this embodiment, the volume of the device can be minimized and the footprint can be reduced. For the illustrated embodiment, the device body 101 includes a first horizontal section, a first vertical section, a second horizontal section, and a second vertical section arranged in sequence and connected to each other. The burner 130, the fuel injector 140, and the wastewater injector 150 are all arranged in the first horizontal section, and a portion of the combustion chamber 110 is arranged at the first horizontal section. The waste heat boiler 105 is arranged in the second horizontal section and the second vertical section. The air preheater 183 and the denitrification device 185 are arranged in the second vertical section.

[0074] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the field of the invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the invention. Terms such as "part" and "component" appearing herein may refer to either a single part or a combination of multiple parts. Terms such as "installation" and "setting" appearing herein may refer to either a component being directly attached to another component or a component being attached to another component through an intermediate component. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0075] The present invention has been described through the above embodiments, but it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the above embodiments and that various variations and modifications may be made based on the teachings of the present invention, all of which fall within the scope of the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater incineration device with multi-stage combustion and large processing capacity, characterized in that: include: a device body having a first end and a second end opposite the first end; a combustion chamber disposed within the device body and proximate the first end of the device body; a burner disposed at the first end of the device body; At least two jackets, each jacket being mounted on the device body and located at the combustion chamber, the at least two jackets being arranged sequentially from the first end along an extension direction of the device body, each jacket being in communication with the combustion chamber via a communicating hole, and each jacket being connected to an air pipeline; at least two stages of fuel injectors, the fuel injectors being arranged at the jacket and extending to the combustion chamber via the communicating hole, the fuel injectors at each stage corresponding to the jacket one-to-one; as well as At least two stages of wastewater injectors, wherein the at least two stages of wastewater injectors and the at least two stages of fuel injectors are alternately arranged along the extension direction of the device body.

2. The wastewater incineration device according to claim 1, characterized in that: Each stage of fuel injectors is disposed between two adjacent stages of wastewater injectors; or The primary wastewater injectors are disposed upstream of corresponding primary fuel injectors.

3. The wastewater incineration device according to claim 1, characterized in that: It also includes an air preheater, which is arranged in the device body and located at the rear of the device body. The air pipeline passes through the air preheater to preheat the air.

4. The wastewater incineration device according to claim 3, characterized in that: It also includes a waste heat boiler, which is arranged downstream of the combustion chamber, and the air preheater is arranged between the high-temperature heating surface and the low-temperature heating surface of the waste heat boiler.

5. The wastewater incineration device according to claim 4, characterized in that: The high-temperature heating surface includes at least one of an evaporator and a superheater, and the low-temperature heating surface includes at least one of an economizer and a smoke cooler; and / or At least one soot blower is provided in the waste heat boiler.

6. The wastewater incineration device according to claim 1, characterized in that: Each stage of the fuel injectors includes at least two fuel injectors, and the at least two fuel injectors are spaced apart along the circumferential direction of the device body; and / or Each stage of the wastewater ejectors includes at least two wastewater ejectors, and the at least two wastewater ejectors are spaced apart along the circumferential direction of the device body.

7. The wastewater incineration device according to claim 1, characterized in that: The device body is constructed to include at least two horizontal segments extending horizontally and at least one vertical segment extending vertically, wherein the vertical segments are alternately arranged with the horizontal segments and are connected to each other, the horizontal segments do not overlap on the horizontal plane, and the combustion chamber is arranged at the horizontal segment.

8. The wastewater incineration device according to claim 1, characterized in that: Another air pipeline is connected to the burner, and a valve is provided on each of the air pipelines connected to the jacket and the burner.

9. The wastewater incineration device according to claim 1, characterized in that: The device further comprises a reduction chamber, the reduction chamber being arranged in the device body and downstream of the combustion chamber, the device body being provided with a reducing agent pipeline, the reducing agent pipeline being in communication with the reduction chamber; and / or It also includes a denitrification device, which is arranged in the device body and located at the rear of the device body.

10. The wastewater incineration device according to claim 1, characterized in that: At least the portion of the device body forming the combustion chamber comprises an inner liner.

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