Ammonia oxidation starting and maintaining system based on electromagnetic induction

Abstract

The utility model relates to the technical field of excrement treatment, in particular to an excrement ammonia gas treatment technology. Water is mostly contained in the black water tank, part of water resources are recycled from the black water tank, and waste of the water resources can be reduced. An ammonia oxidation starting and maintaining system based on electromagnetic induction comprises a black water tank and further comprises an oxidation furnace. The oxidizing furnace comprises a furnace body; a stirring impeller is arranged at the bottom of the furnace body and is connected with a driving motor; an electromagnetic induction coil is arranged outside the furnace body and is connected with an electromagnetic heater driving circuit; the oxidation furnace is provided with a material input port, an oxygen input port and an overflow discharge port; the black water tank pipeline is communicated with the material input port and the overflow discharge port is communicated with the black water tank. The device has the beneficial effects that the innocent treatment efficiency of the excrement is high, and heat generated by combustion of combustible gas in the excrement is used for ammonia oxidation, so that the consumption of electric energy can be reduced, and the treatment and recovery cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of fecal treatment technology, specifically to fecal ammonia treatment technology. Background Technology

[0002] Black water tanks are mostly filled with water. If some of the water can be recycled from the black water tanks for reuse in toilet flushing, the consumption of clean water can be reduced, thus reducing water waste.

[0003] Human excrement is mainly composed of organic matter. During the degradation process, human excrement produces ammonia, which is highly toxic and affects human health. It can also damage plants and animals, disrupting the ecological balance. In addition, ammonia reacts chemically with other substances in the atmosphere to form secondary pollutants, further aggravating environmental pollution. Therefore, ammonia must be rendered harmless before it can be released. Utility Model Content

[0004] The purpose of this invention is to provide an electromagnetic induction-based ammonia oxidation start-up and maintenance system to solve at least one of the above-mentioned technical problems.

[0005] The technical problem solved by this utility model can be achieved by the following technical solution:

[0006] An electromagnetic induction-based ammonia oxidation start-up and maintenance system includes a black water tank and a control system, as well as an oxidation furnace, wherein the black water tank is positioned below the oxidation furnace.

[0007] The oxidation furnace includes a furnace body;

[0008] A stirring impeller is installed at the bottom of the furnace body. The stirring impeller is connected to a drive motor, and the control system is connected to the drive motor.

[0009] An ignition device is installed on the upper part of the furnace body. The ignition device includes a high-voltage arc control circuit, and the high-voltage arc control circuit is connected to the control system.

[0010] Electromagnetic induction coils are arranged outside the furnace body. The electromagnetic induction coils are connected to an electromagnetic heater drive circuit. The electromagnetic heater drive circuit signal is connected to the control system signal.

[0011] The oxidation furnace is also equipped with a temperature sensor, which is connected to the control system.

[0012] The oxidation furnace is equipped with a material inlet, an oxygen inlet, and an overflow outlet;

[0013] The black water tank pipeline is connected to the material inlet, and the overflow outlet is connected to the black water tank.

[0014] Feces are mainly composed of three-quarters water and one-quarter solids. The solids include protein, inorganic matter, fat, undigested fiber, digestive fluid residue, sloughed cells and bacteria, as well as methane, hydrogen sulfide, ammonia and a small amount of hydrogen produced during digestion.

[0015] Methane, hydrogen sulfide, and hydrogen, when mixed with oxygen, are easily combusted, releasing carbon dioxide, sulfur dioxide, and water, along with a large amount of heat.

[0016] Pure oxygen and methane undergo the following chemical reaction:

[0017] CH4 + 2O2 → CO2 + 2H2O + Heat

[0018] Pure oxygen and hydrogen undergo the following chemical reaction:

[0019] 2H₂ + O₂ → 2H₂O + Heat

[0020] Pure oxygen and hydrogen sulfide undergo the following chemical reaction:

[0021] 2H₂S + 3O₂ → 2H₂O + 2SO₂

[0022] The oxidation reaction of ammonia and oxygen requires the absorption of a large amount of heat. The combustion reaction of methane, hydrogen sulfide, hydrogen, and oxygen can provide heat for the oxidation reaction of ammonia and oxygen, thus ammonia and oxygen undergo the following chemical reaction:

[0023] 4NH3 + 3O2 + (catalyst) + heat → 2N2 + 6H2O

[0024] If ammonia is released untreated, it can damage the human respiratory system, irritate and corrode the respiratory tract, causing acute damage such as sore throat, cough, and difficulty breathing, and even leading to suffocation and death. It is also highly irritating and corrosive to the skin, causing symptoms such as redness, swelling, and erosion; and it irritates the eyes. Nitrogen, on the other hand, is an inert gas produced by oxidation with pure oxygen and is harmless to the human body.

[0025] In the above design, the oxidizer is equipped with a stirring impeller and an electromagnetic induction coil. Its beneficial effect is that, through heating and stirring, the gases such as ammonia, methane, hydrogen, and hydrogen sulfide contained in the feces can be released more efficiently. The heat released by the combustion of methane, hydrogen, hydrogen sulfide and oxygen provides a continuous oxidation process for the oxidation reaction of ammonia and oxygen, saving power energy consumption.

[0026] In the above design, an ignition device is installed on the upper part of the furnace body. The purpose of the ignition device is to ignite the mixture of methane, hydrogen sulfide, hydrogen and oxygen for combustion, thereby using the heat generated by the combustion of the above gases to ignite and maintain the oxidation process of ammonia and oxygen.

[0027] In the above design, the electromagnetic heater drive circuit signal is connected to the control system signal and also connected to a temperature sensor, thus forming a closed loop of temperature measurement and control. The control system controls the temperature in the oxidation furnace at 50-70 degrees Celsius. Its beneficial effect is that it can accelerate the decomposition and transformation of organic matter and release more methane, hydrogen sulfide and ammonia.

[0028] In the above design, the black water tank is positioned lower than the oxidation furnace. The advantage of this is that wastewater that needs to be returned to the black water tank can flow back to the black water tank by gravity without consuming additional energy, thus saving costs.

[0029] Furthermore, a fecal pulverizing device is also included between the black water tank and the oxidation furnace;

[0030] The fecal pulverizer includes a fluid pump, a jet pump, a pipeline mixer, and a filter;

[0031] The fluid pump is a centrifugal shredder pump with a pulverizing function;

[0032] The filter is a self-cleaning filter with a filtration accuracy of 100–300 microns;

[0033] The black water tank is connected in sequence to a fluid pump, a jet pump, a pipe mixer, and a filter through pipes, forming a treatment system for pulverizing and filtering fecal waste;

[0034] The self-cleaning filter includes a filter residue outlet, which is connected to the material inlet of the oxidation furnace.

[0035] In the above design, the fecal pulverizing device is equipped with a fluid pump for pulverizing organic solids in the feces. The fluid pump is a centrifugal shredding pump, which is equipped with a shredding mechanism that can shred the organic solids when pumping them.

[0036] The fecal matter is first initially pulverized in a fluid pump, then further pulverized by a jet pump, and mixed in a pipeline mixer to form a suspension. Finally, the suspension is filtered in a filter to form filter cake, which is then connected to the oxidation furnace through a pipeline.

[0037] Jet pumps are an existing technology that converts high-speed fluid into a high-speed jet, generating special physical effects such as negative pressure, thrust, and shear force, thereby further pulverizing fecal matter.

[0038] Pipe mixers are also existing technology used to mix fecal matter into a suspension.

[0039] Adding a jet pump and a pipeline mixer can further pulverize fecal waste. The beneficial effect is that the fecal waste is pulverized into smaller pieces, which improves the efficiency of water recovery and facilitates the release of more methane, hydrogen sulfide, and ammonia in the oxidation furnace, thereby improving the treatment efficiency of fecal waste.

[0040] In the above design, a self-cleaning filter is used. Self-cleaning filters are existing technology, characterized by their ability to maintain filtration capacity for extended periods. The filtration accuracy of self-cleaning filters is between 100 and 300 microns. Their advantage lies in meeting the requirements for water recycling while maintaining low filtration costs, thus achieving a balance between performance and cost.

[0041] Furthermore, a ball valve is installed between the pipeline mixer and the self-cleaning filter as a filter valve;

[0042] Another pipe is installed on the pipe between the pipe mixer and the filter valve as a return pipe connected to the black water tank. A flow valve is installed on the return pipe as a return valve.

[0043] In the above design, after the filter valve is closed and the return valve is opened, the fecal waste passes through the pipes in sequence through the black water tank, the fluid pump, the jet pump, and the pipe mixer, and then returns to the black water tank, forming a closed-loop cycle of crushing and mixing.

[0044] By circulating fecal matter between the black water tank and the fecal pulverizer, the degree of pulverization can be improved. The beneficial effect is that it increases the amount of water recovered and enhances the degradation efficiency of organic solid matter in fecal matter.

[0045] Furthermore, it also includes an electrochemical reactor;

[0046] The electrochemical reactor includes a container for holding filtrate, and positive and negative electrodes are arranged inside the container, which are respectively connected to the positive and negative terminals of a power source.

[0047] The self-cleaning filter also includes a filtrate outlet;

[0048] The filtrate outlet pipe of the self-cleaning filter is connected to the electrochemical reactor;

[0049] The electrochemical reactor pipeline is connected to the material inlet of the oxidation furnace.

[0050] In the above design, the electrochemical reactor is a device that uses electrochemical technology to treat wastewater. It transforms and removes pollutants in water through electrochemical reactions on electrodes, and oxidizes organic matter into low-molecular-weight organic matter or directly oxidizes it into CO2 and H2O for discharge through the action of electric current.

[0051] Furthermore, it also includes an electrolytic oxygen generator;

[0052] The electrolytic oxygen generator has an oxygen output port, and the oxygen output port pipe is connected to the oxygen input port of the oxidation furnace.

[0053] In the above design, the role of the electrolytic oxygen generator is to provide a high concentration of oxygen to the oxidation furnace. Its beneficial effect is that the high concentration of oxygen can fully combust and oxidize methane, hydrogen sulfide, hydrogen, and ammonia, thereby improving the reaction efficiency of the above gases and oxygen and shortening the reaction time.

[0054] Furthermore, a pyroelectric flame sensor for detecting combustion is installed on the upper part of the oxidation furnace body, and the signal of the pyroelectric flame sensor is connected to the control system.

[0055] In the above design, a pyroelectric flame sensor is installed on the upper part of the oxidizer. A pyroelectric flame sensor is a sensor that determines the presence of a flame by detecting the heat generated by the flame, based on the thermoelectric effect. The control system uses the pyroelectric flame sensor to determine whether combustion in the oxidizer has ended. When the control system determines that combustion in the oxidizer has ended through the pyroelectric flame sensor, it controls the electrolytic oxygen generator to stop producing oxygen. Its advantage lies in timely stopping oxygen production, saving on energy waste.

[0056] Furthermore, the stirring impeller includes a rear cover plate and blades, forming a semi-open impeller.

[0057] In the above design, the bidirectional motor can intermittently change the rotation direction of the stirring impeller, which has the advantage of providing more thorough stirring to release more methane, hydrogen sulfide, ammonia and hydrogen.

[0058] Furthermore, the drive motor is a bidirectional motor.

[0059] In the above design, the impeller is a semi-open impeller with a rear cover plate and blades, which is easier to clean while still satisfying the mixing function.

[0060] This invention uses a fecal waste pulverizing device to pulverize and mix the fecal waste in the black water tank. Through a pulverizing pump, a jet pump, and a mixer, the solids in the feces are fully pulverized to improve the efficiency of water recycling and the efficiency of harmless treatment of fecal waste in the oxidation furnace.

[0061] The oxidizer is equipped with an agitator impeller. Through heating and stirring, methane, hydrogen sulfide, ammonia, and hydrogen are separated from fecal waste and then oxidized and burned with pure oxygen. The beneficial effect is that harmful gases are removed, and the heat generated by combustion sustains the oxidation process of ammonia, saving electricity and reducing the cost of treating feces.

[0062] Its beneficial effect lies in reducing water waste by recovering water from feces and sewage, thus achieving certain social and economic benefits. Attached Figure Description

[0063] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0064] Figure 1 This is a schematic diagram of the overall device of this utility model.

[0065] Symbol explanation:

[0066] 1. Black water tank; 2. Oxidation furnace; 3. Drive motor; 4. Electromagnetic induction coil; 5. Electromagnetic heater drive circuit; 6. Overflow port; 7. Fluid pump; 8. Jet pump; 9. Pipeline mixer; 10. Filter; 11. Filter valve; 12. Return valve; 13. Electrolytic oxygen generator; 14. Electrochemical reactor. Detailed Implementation

[0067] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0068] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0069] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0070] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in an embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0071] Reference Figure 1As shown, the ammonia oxidation start-up and maintenance system based on electromagnetic induction includes a black water tank 1 and a control system, and also includes an oxidation furnace 2, with the position of the black water tank 1 lower than that of the oxidation furnace 2;

[0072] Oxidation furnace 2 includes a furnace body;

[0073] A stirring impeller is installed at the bottom of the furnace body. The stirring impeller is connected to a drive motor 3, and the control system is connected to the drive motor 3.

[0074] An ignition device is installed on the upper part of the furnace body. The ignition device includes a high-voltage arc control circuit, and the high-voltage arc control circuit is connected to the control system.

[0075] An electromagnetic induction coil 4 is arranged outside the furnace body. The electromagnetic induction coil 4 is connected to an electromagnetic heater drive circuit 5. The electromagnetic heater drive circuit signal is connected to the control system signal 5.

[0076] A temperature sensor is also installed inside oxidation furnace 2, and the temperature sensor is connected to the control system;

[0077] The oxidizer 2 is equipped with a material inlet, an oxygen inlet, and an overflow outlet;

[0078] The black water tank 1 is connected to the material inlet and the overflow outlet is connected to the black water tank 1.

[0079] Feces are mainly composed of three-quarters water and one-quarter solids. The solids include protein, inorganic matter, fat, undigested fiber, digestive fluid residue, sloughed cells and bacteria, as well as methane, hydrogen sulfide, ammonia and a small amount of hydrogen produced during digestion.

[0080] Methane, hydrogen sulfide, and hydrogen, when mixed with oxygen, are easily combusted, releasing carbon dioxide, sulfur dioxide, and water, along with a large amount of heat.

[0081] Pure oxygen and methane undergo the following chemical reaction:

[0082] CH4 + 2O2 → CO2 + 2H2O + Heat

[0083] Pure oxygen and hydrogen undergo the following chemical reaction:

[0084] 2H₂ + O₂ → 2H₂O + Heat

[0085] Pure oxygen and hydrogen sulfide undergo the following chemical reaction:

[0086] 2H₂S + 3O₂ → 2H₂O + 2SO₂

[0087] The oxidation reaction of ammonia and oxygen requires the absorption of a large amount of heat. The combustion reaction of methane, hydrogen sulfide, hydrogen, and oxygen can provide heat for the oxidation reaction of ammonia and oxygen, thus ammonia and oxygen undergo the following chemical reaction:

[0088] 4NH3 + 3O2 + (catalyst) + heat → 2N2 + 6H2O

[0089] If ammonia is released untreated, it can damage the human respiratory system, irritate and corrode the respiratory tract, causing acute damage such as sore throat, cough, and difficulty breathing, and even leading to suffocation and death. It is also highly irritating and corrosive to the skin, causing symptoms such as redness, swelling, and erosion; and it irritates the eyes. Nitrogen, on the other hand, is an inert gas produced by oxidation with pure oxygen and is harmless to the human body.

[0090] In this embodiment, the oxidation furnace 2 is equipped with a stirring impeller and an electromagnetic induction coil 4. Its beneficial effect is that, through heating and stirring, the gases such as ammonia, methane, hydrogen, and hydrogen sulfide contained in the feces can be released more efficiently. The heat released by the combustion of methane, hydrogen, hydrogen sulfide and oxygen provides a continuous oxidation process for the oxidation reaction of ammonia and oxygen, saving power energy consumption.

[0091] In this embodiment, an ignition device is provided on the upper part of the furnace body. The function of the ignition device is to ignite the mixture of methane, hydrogen sulfide, hydrogen and oxygen for combustion, thereby using the heat generated by the combustion of the above gases to ignite and maintain the oxidation process of ammonia and oxygen.

[0092] In this embodiment, the electromagnetic heater drive circuit signal is connected to the control system signal and is also connected to a temperature sensor, thereby forming a closed loop of temperature measurement and control. The control system controls the temperature in the oxidation furnace 2 at 50-70 degrees Celsius. Its beneficial effect is that it can accelerate the decomposition and transformation of organic matter and release more methane, hydrogen sulfide and ammonia.

[0093] In this embodiment, the position of the black water tank 1 is lower than that of the oxidation furnace 2. The advantage of this is that the wastewater that needs to be returned to the black water tank 1 can flow back to the black water tank 1 by gravity without consuming additional energy, thus saving costs.

[0094] Furthermore, a fecal pulverizing device is also included between the black water tank 1 and the oxidation furnace 2;

[0095] The fecal pulverizer includes a fluid pump 7, a jet pump 8, a pipeline mixer 9, and a filter 10.

[0096] Fluid pump 7 is a centrifugal shredder pump with pulverizing function;

[0097] The filter 10 is a self-cleaning filter 10, and the filtration accuracy of the self-cleaning filter 10 is 100 to 300 microns;

[0098] The black water tank 1 is connected in sequence to the fluid pump 7, jet pump 8, pipe mixer 9, and filter 10 through pipes to form a treatment system for crushing and filtering fecal waste.

[0099] The self-cleaning filter 10 includes a filter residue outlet, which is connected to the material inlet of the oxidation furnace 2.

[0100] In this embodiment, the fecal pulverizing device is equipped with a fluid pump 7 for pulverizing organic solids in feces. The fluid pump 7 is a centrifugal shredding pump, which is equipped with a shredding mechanism that can shred organic solids when pumping them.

[0101] The fecal matter is first initially crushed in the fluid pump 7, then further crushed by the jet pump 8, and mixed in the pipeline mixer 9 to form a suspension. Finally, the suspension is filtered in the filter 10, and the filtered residue is connected to the oxidation furnace 2 through the pipeline.

[0102] The jet pump 8 is an existing technology that generates special physical effects, such as negative pressure, thrust and shear force, by converting high-speed fluid into high-speed jets, thereby further pulverizing fecal waste.

[0103] Pipe mixer 9 is also existing technology used to mix fecal matter into a suspension.

[0104] Adding a jet pump 8 and a pipeline mixer 9 can further pulverize the fecal waste. The beneficial effect is that the fecal waste is pulverized into smaller pieces, which improves the efficiency of water recovery on the one hand, and facilitates the release of more methane, hydrogen sulfide and ammonia in the oxidizer 2, thereby improving the efficiency of fecal waste treatment.

[0105] In this embodiment, the filter 10 is a self-cleaning filter 10, which is a prior art technology. Its characteristic is that it can maintain the filtration capability of the filter 10 for a long time. The filtration accuracy of the self-cleaning filter 10 is 100-300 micrometers. Its advantage is that the filtration accuracy of 100-300 micrometers meets the purpose of recycling water resources, while maintaining a low filtration cost, thus maintaining a balance between performance and cost.

[0106] Furthermore, a ball valve is provided between the pipeline mixer 9 and the self-cleaning filter 10 as a filter valve 11;

[0107] Another pipe is installed on the pipe between the pipe mixer 9 and the filter valve 11 as a return pipe connected to the black water tank 1. A flow valve is installed on the return pipe as a return valve 12.

[0108] In this embodiment, after the filter valve is closed and the return valve 12 is opened, the fecal waste passes through the pipe sequentially through the black water tank 1, the fluid pump 7, the jet pump 8, and the pipe mixer 9, and then returns to the black water tank 1, forming a closed-loop cycle of crushing and mixing.

[0109] By circulating fecal matter between the black water tank 1 and the fecal matter pulverizing device, the degree of pulverization can be improved. Its beneficial effect is to increase the amount of water recovered and improve the degradation efficiency of organic solid matter in fecal matter.

[0110] Furthermore, it also includes an electrolytic oxygen generator 13;

[0111] The electrolytic oxygen generator 13 has an oxygen output port, and the oxygen output port pipe is connected to the oxygen input port of the oxidation furnace 2.

[0112] In this embodiment, the function of the electrolytic oxygen generator 13 is to provide high-concentration oxygen to the oxidation furnace 2. Its beneficial effect is that the high-concentration oxygen can fully combust and oxidize methane, hydrogen sulfide, hydrogen, and ammonia, thereby improving the reaction efficiency of the above gases and oxygen and shortening the reaction time.

[0113] Furthermore, a pyroelectric flame sensor for detecting combustion is installed on the upper part of the oxidation furnace body, and the signal of the pyroelectric flame sensor is connected to the control system.

[0114] In this embodiment, a pyroelectric flame sensor is installed on the upper part of the furnace body of the oxidizer 2. The pyroelectric flame sensor is a sensor based on the thermoelectric effect, which determines the presence of a flame by detecting the heat generated by the flame. The control system uses the pyroelectric flame sensor to determine whether combustion in the oxidizer 2 has ended. When the control system determines that combustion in the oxidizer 2 has ended through the pyroelectric flame sensor, it controls the electrolytic oxygen generator to stop producing oxygen. Its advantage lies in timely stopping oxygen production, saving on energy waste.

[0115] Furthermore, the stirring impeller includes a rear cover plate and blades, forming a semi-open impeller.

[0116] In this embodiment, the bidirectional motor can intermittently change the rotation direction of the stirring impeller, which has the advantage of providing more thorough stirring to release more methane, hydrogen sulfide, ammonia and hydrogen.

[0117] Furthermore, the drive motor 3 is a bidirectional motor.

[0118] In this embodiment, the stirring impeller is a semi-open impeller with a rear cover plate and blades, which is easier to clean while still satisfying the stirring function.

[0119] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments may be described, i.e., those features that are not relevant to the currently considered best mode for carrying out the present invention, or those features that are not relevant to implementing the present invention.

[0120] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0121] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An ammonia oxidation start-up and maintenance system based on electromagnetic induction comprising a black water tank and a control system, characterized in that, The system further comprises an oxidation furnace, and the black water tank is arranged below the oxidation furnace; The oxidation furnace comprises a furnace body; The bottom of the furnace body is provided with an agitator connected to a driving motor, and the driving motor is driven by the control system; The upper part of the furnace body is provided with an ignition device, and the ignition device comprises a high-voltage arc control circuit connected to the control system; The furnace body is provided with an electromagnetic induction coil connected to an electromagnetic heater driving circuit connected to the control system; The oxidation furnace is further provided with a temperature sensor connected to the control system; The oxidation furnace is provided with a material input port, an oxygen input port, and an overflow port; The black water tank is connected to the material input port and the overflow port through pipelines.

2. The electromagnetic induction based ammonia oxidation initiation and sustenance system as claimed in claim 1, wherein: The system further comprises a fecal matter crushing device between the black water tank and the oxidation furnace; The fecal matter crushing device comprises a fluid pump, a jet pump, a pipeline mixer, and a filter; The fluid pump is a centrifugal chopping pump with a crushing function; The filter is a self-cleaning filter with a filtering precision of 100-300 microns; The black water tank is connected to the fluid pump, the jet pump, the pipeline mixer, and the filter through pipelines in sequence to form a fecal matter crushing and filtering system; The self-cleaning filter comprises a filter residue output port connected to the material input port of the oxidation furnace.

3. The electromagnetic induction-based ammonia oxidation starting and maintaining system according to claim 2, wherein: A ball valve is arranged between the pipeline mixer and the self-cleaning filter as a filter valve; Another pipeline is arranged on the pipeline between the pipeline mixer and the filter valve as a backflow pipeline connected to the black water tank, and a flow valve is arranged on the backflow pipeline as a backflow valve.

4. The electromagnetic induction-based ammonia oxidation starting and maintaining system according to claim 2, wherein: The system further comprises an electrochemical reactor; The electrochemical reactor comprises a container for containing filtrate, and positive and negative electrodes are arranged in the container, and the positive and negative electrodes are connected to the positive and negative electrodes of a power supply, respectively; The self-cleaning filter further comprises a filtrate output port; The filtrate output port of the self-cleaning filter is connected to the electrochemical reactor through a pipeline; The electrochemical reactor is connected to the material input port of the oxidation furnace through a pipeline.

5. The electromagnetic induction based ammonia oxidation initiation and sustenance system as claimed in claim 1, wherein: The system further comprises an electrolytic oxygen generator; The electrolytic oxygen generator has an oxygen output port connected to the oxygen input port of the oxidation furnace through a pipeline.

6. The electromagnetic induction based ammonia gas oxidation initiation and sustenance system as claimed in claim 1 wherein: The upper part of the furnace body of the oxidation furnace is further provided with a pyroelectric flame sensor for detecting combustion, and the pyroelectric flame sensor is connected to the control system.

7. The electromagnetic induction based ammonia gas oxidation initiation and sustenance system as claimed in claim 1 wherein: The agitator comprises a rear cover plate and blades, forming a semi-open agitator.

8. The electromagnetic induction based ammonia gas oxidation initiation and sustenance system as claimed in claim 1, wherein: The driving motor is a bidirectional motor.

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