CN114956249A - Microwave-based gas stripping deamination method and control system thereof - Google Patents

Microwave-based gas stripping deamination method and control system thereof Download PDF

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CN114956249A
CN114956249A CN202110210601.5A CN202110210601A CN114956249A CN 114956249 A CN114956249 A CN 114956249A CN 202110210601 A CN202110210601 A CN 202110210601A CN 114956249 A CN114956249 A CN 114956249A
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target
air
microwave
current
gas
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马中发
孙琪琛
黄吉旺
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Shaanxi Qinglang Wancheng Environmental Protection Technology Co Ltd
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Shaanxi Qinglang Wancheng Environmental Protection Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/302Treatment of water, waste water, or sewage by irradiation with microwaves
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/02Treatment of water, waste water, or sewage by heating
    • C02F1/04Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/10Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
    • C02F1/12Spray evaporation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/10Inorganic compounds
    • C02F2101/16Nitrogen compounds, e.g. ammonia
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
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  • Chemical & Material Sciences (AREA)
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  • Health & Medical Sciences (AREA)
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Abstract

The invention provides a microwave-based gas stripping deamination method and a control system thereof, wherein the method comprises the following steps: acquiring target characteristic parameters in microwave-based gas stripping deamination equipment, wherein the target characteristic parameters comprise a first current temperature of a packing layer, a current air quantity of air at an air inlet, a second current temperature of the air and/or a current concentration of ammonia gas in the air at the air outlet; determining a target processing strategy matched with the target characteristic parameters; and controlling to execute the target processing operation according to the target processing strategy. That is to say, the invention can realize the purpose of efficiently and rapidly extracting the ammonia gas in the ammonia-containing wastewater according to the first current temperature of the packing layer, the current air volume of the air at the air inlet, the second current temperature of the air at the air inlet and/or the current concentration of the ammonia gas in the air outlet, thereby greatly improving the extraction efficiency of the ammonia gas from the ammonia-containing wastewater, reducing the energy consumption and prolonging the service life of the microwave-based gas stripping deamination equipment.

Description

Microwave-based gas stripping deamination method and control system thereof
Technical Field
The invention belongs to the technical field of gas stripping deamination, and relates to but is not limited to a microwave-based gas stripping deamination method and a control system thereof.
Background
At present, when the wastewater discharged by urban factories is ammonia-containing wastewater, the ammonia-containing wastewater enters a water environment to cause eutrophication of a water body and cause black and smelly water body, the difficulty of water supply treatment and the cost increase are increased, and people and organisms are directly poisoned. Therefore, how to extract the ammonia gas from the ammonia-containing wastewater quickly and efficiently is becoming a popular research direction in the environmental protection field.
In the prior art, the ammonia gas in ammonia-containing wastewater is usually extracted by adopting a traditional gas stripping deamination technology, and the traditional gas stripping deamination technology needs to firstly add alkali into the ammonia-containing wastewater to adjust the pH value of the ammonia-containing wastewater to be more than 11, and then needs to add acid after deamination to neutralize the liquid to pH 7.
However, the extraction efficiency of ammonia from ammonia-containing wastewater is not high because of the large amount of acid and alkali required for extracting ammonia from ammonia-containing wastewater by using the conventional stripping deamination technology and the increase of waste content in wastewater.
Disclosure of Invention
The invention aims to provide a microwave-based gas stripping deamination method and a control system thereof aiming at the defects of the prior art in the process of extracting ammonia gas from ammonia-containing wastewater, so as to solve the problem that the traditional gas stripping deamination technology needs a large amount of acid and alkali when extracting ammonia gas from ammonia-containing wastewater and increases the content of waste in the wastewater, so that the ammonia gas extraction efficiency of ammonia-containing wastewater is not high.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, the invention provides a microwave-based gas stripping deamination method, which is applied to microwave-based gas stripping deamination equipment and comprises the following steps:
acquiring target characteristic parameters in gas stripping deamination equipment based on microwaves; the target characteristic parameters comprise a first current temperature of the packing layer, a current air volume of air at the air inlet, a second current temperature of the air and/or a current concentration of ammonia gas in the gas at the air outlet;
determining a target processing strategy matched with the target characteristic parameters;
and controlling and executing target processing operation according to the target processing strategy.
Optionally, when the target characteristic parameter includes a first current temperature of the filler layer, the determining a target processing strategy matching the target characteristic parameter includes:
matching the first current temperature with a first preset reference temperature to obtain a first target matching result;
when the first target matching result indicates that the first current temperature is higher than the first preset reference temperature, determining a target processing strategy including execution of over-temperature protection;
and when the first target matching result indicates that the first current temperature is lower than the first preset reference temperature, determining a target processing strategy comprising increasing microwave power.
Optionally, when the target characteristic parameter includes the current air volume of the air at the air inlet, the determining the target processing policy matched with the target characteristic parameter includes:
matching the current air volume with a preset reference air volume to obtain a second target matching result;
when the second target matching result represents that the current air volume is higher than the preset reference air volume, determining a target processing strategy comprising increasing the spraying speed and/or reducing the air speed of the fan;
and when the second target matching result represents that the current air volume is lower than the preset reference air volume, determining a target processing strategy comprising reducing the spraying speed and/or increasing the air speed of the fan.
Optionally, when the target characteristic parameter includes a second current temperature of the air at the air inlet, the determining a target processing strategy matching the target characteristic parameter includes:
matching the second current temperature with a second preset reference temperature to obtain a third target matching result;
when the third target matching result represents that the second current temperature is higher than the second preset reference temperature, determining a target processing strategy comprising reducing microwave power;
and when the third target matching result indicates that the second current temperature is lower than the second preset reference temperature, determining a target processing strategy comprising increasing the microwave power.
Optionally, when the target characteristic parameter includes the current concentration of ammonia in the gas at the gas outlet, the determining the target processing policy matched with the target characteristic parameter includes:
matching the current concentration with a preset reference concentration to obtain a fourth target matching result;
when the fourth target matching result indicates that the current concentration is higher than the preset reference concentration, determining a target processing strategy including executing ammonium sulfate generation;
and when the fourth target matching result indicates that the current concentration is lower than the preset reference concentration, determining to execute a target processing strategy for collecting ammonia gas.
Optionally, the controlling and executing target processing operation according to the target processing policy includes:
when a target processing strategy comprising adjusting the spraying speed and/or adjusting the wind speed of the fan is determined, controlling and adjusting the current wind speed of the fan at the air inlet and/or the current spraying speed of a spraying layer in the stripping tower to obtain first target adjusted information; wherein the adjustment comprises an increase or a decrease;
and controlling to execute target gas stripping deamination processing operation under the action of the first target adjusted information.
Optionally, the controlling and executing target processing operation according to the target processing policy includes:
when a target processing strategy comprising the adjustment of the microwave power is determined, controlling to reduce the current power of the microwave sources around the tower waist of the stripping tower to obtain second target adjusted information; wherein the adjustment comprises an increase or a decrease;
and controlling to execute target gas stripping deamination processing operation under the action of the second target adjusted information.
In a second aspect, the present invention provides a microwave-based gas stripping deamination apparatus, comprising: the device comprises an air stripping tower, an air inlet, a microwave source, a liquid tank, a spraying layer, a packing layer, a fan, an air outlet and a controller;
wherein, it sets gradually from top to bottom to spray layer and packing layer in the inside of gas stripping tower, the liquid case set up in the bottom of gas stripping tower, the microwave source set up in around the tower waist of gas stripping tower, the air inlet sets up on the bottom lateral wall of gas stripping tower, the gas outlet set up in the top of gas stripping tower, the fan sets up air inlet department, the controller respectively with the fan, the microwave source with the layer that sprays is connected.
In a third aspect, the invention provides a microwave-based air stripping deamination device, which comprises: the device comprises an acquisition module, a determination module and a processing module, wherein:
the acquisition module is used for acquiring target characteristic parameters in the microwave-based gas stripping deamination equipment; the target characteristic parameters comprise a first current temperature of the packing layer, a current air volume of air at the air inlet, a second current temperature of the air and/or a current concentration of ammonia gas in the gas at the air outlet;
the determining module is used for determining a target processing strategy matched with the target characteristic parameters;
and the processing module is used for controlling and executing target processing operation according to the target processing strategy.
In a fourth aspect, the invention provides a microwave-based gas stripping deamination control device, which comprises: the microwave-based stripping deamination device comprises a processor and a memory, wherein the memory is used for storing instructions, and the processor is used for executing the instructions stored in the memory so as to enable the control device to execute the microwave-based stripping deamination method of the first aspect.
The invention has the beneficial effects that: the invention relates to a microwave-based gas stripping deamination method and a control system thereof, wherein the microwave-based gas stripping deamination method is applied to microwave-based gas stripping deamination equipment, and the method comprises the following steps: acquiring target characteristic parameters in microwave-based gas stripping deamination equipment; the target characteristic parameters comprise a first current temperature of the packing layer, a current air volume of air at the air inlet, a second current temperature of the air and/or a current concentration of ammonia gas in the gas at the air outlet; determining a target processing strategy matched with the target characteristic parameters; and controlling and executing target processing operation according to the target processing strategy. That is to say, the invention can realize the purpose of efficiently and rapidly extracting the ammonia gas in the ammonia-containing wastewater according to the first current temperature of the packing layer, the current air volume of the air at the air inlet, the second current temperature of the air and/or the current concentration of the ammonia gas in the air at the air outlet, solves the problem that the extraction efficiency of the ammonia gas in the ammonia-containing wastewater is not high due to the fact that a large amount of acid and alkali are needed and the content of waste in the wastewater is increased when the ammonia gas in the ammonia-containing wastewater is extracted by the traditional gas stripping deamination technology, greatly improves the extraction efficiency of the ammonia gas from the ammonia-containing wastewater, reduces the energy consumption, and prolongs the service life of the microwave-based gas stripping deamination equipment.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic flow chart of a microwave-based stripping deamination method according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a microwave-based stripping deamination apparatus according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of a microwave-based stripping deamination apparatus according to another embodiment of the present invention;
fig. 4 is a schematic diagram of a microwave-based stripping deamination control device according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The terms to which the present invention relates will be explained first:
air stripping deamination: the gas stripping deamination has strict requirements on the pH value in the wastewater, when the pH value is 11.5-12.0, ammonium ions in the wastewater can be changed into free ammonia, chemical reaction can be generated through the gas stripping deamination, the free ammonia is changed into a gas phase from a liquid phase through a steam stripping method at this time, the ammonia entering the gas phase reacts with dilute sulfuric acid to generate ammonium sulfate, the effect of a catalyst is further recycled, raw materials in the preparation process are recycled, purified gas and steam generated after reaction enter a circulating heat pump to be recycled, the energy-saving effect is achieved, the wastewater purification effect is achieved, water resources are protected, and ecological sustainable development is maintained.
The microwave is an electric wave with a frequency of 300 megahertz to 300 gigahertz, and water molecules in the heated medium material are polar molecules. Under the action of a rapidly changing high-frequency point magnetic field, the polarity orientation of the magnetic field changes along with the change of an external electric field. The effect of mutual friction motion of molecules is caused, at the moment, the field energy of the microwave field is converted into heat energy in the medium, so that the temperature of the material is raised, and a series of physical and chemical processes such as thermalization, puffing and the like are generated to achieve the aim of microwave heating.
FIG. 1 is a schematic flow chart of a microwave-based stripping deamination method according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a microwave-based stripping deamination apparatus according to another embodiment of the present invention; FIG. 3 is a schematic diagram of a microwave-based stripping deamination apparatus according to yet another embodiment of the present invention; fig. 4 is a schematic diagram of a microwave-based stripping deamination control device according to another embodiment of the present invention. The microwave-based stripping deamination method and the control system thereof provided by the embodiment of the invention will be described in detail below with reference to fig. 1 to 4.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The microwave-based gas stripping deamination method provided by the embodiment of the invention is applied to microwave-based gas stripping deamination equipment, the main execution body of the microwave-based gas stripping deamination method is a controller in the microwave-based gas stripping deamination equipment, as shown in fig. 1, a schematic flow diagram of the microwave-based gas stripping deamination method is shown, and the steps included in the method are specifically described below with reference to fig. 1.
And S101, acquiring target characteristic parameters in the microwave-based gas stripping deamination equipment.
The microwave-based gas stripping deamination equipment is used for spraying ammonia-containing wastewater in the liquid tank into the gas extraction tower in a spraying mode and promoting ammonium ions in the ammonia-containing wastewater to be decomposed into ammonia gas and extracted under the catalytic action of microwaves.
Specifically, a sensor, such as a thermocouple, may be disposed in the microwave-based gas stripping deamination apparatus, and the sensor may be configured to detect a first current temperature of a filler layer in the apparatus, a current air volume of air at the air inlet, a second current temperature of air at the air inlet, and/or a current concentration of ammonia gas in gas at the air outlet, and send the detected first current temperature, current air volume, second current temperature, and/or current concentration to the controller. Thus, the controller may receive a first current temperature of the filler layer, a current volume of air at the air inlet, a second current temperature of air at the air inlet, and/or a current concentration of ammonia in the gas at the air outlet as detected by the sensor.
In addition, when the controller acquires the target characteristic parameters in the microwave-based gas stripping deamination equipment, the target characteristic parameters can be acquired independently, can be acquired in pairs, can be acquired in one or three or can be acquired simultaneously, for example, the first current temperature of the packing layer, the current air quantity of the air at the air inlet, the second current temperature of the air at the air inlet and the current concentration of ammonia in the gas at the air outlet can be acquired independently and sequentially, the first current temperature of the packing layer and the current air quantity of the air at the air inlet can be acquired firstly, the second current temperature of the air at the air inlet and the current concentration of ammonia in the gas at the air outlet can be acquired later, the current air quantity of the air at the air inlet, the second current temperature of the air at the air inlet and the current concentration of ammonia in the gas at the air outlet can be acquired firstly, the first current temperature of the air at the air inlet can be acquired later, the second current temperature of the air at the air inlet, the current temperature of ammonia, and the current concentration of ammonia in the gas at the air outlet can be acquired later, And then acquiring the first current temperature of the packing layer, the current air volume of the air at the air inlet and the current concentration of the ammonia gas in the gas at the air outlet, and also acquiring the first current temperature of the packing layer, the current air volume of the air at the air inlet, the second current temperature of the air at the air inlet and the current concentration of the ammonia gas in the gas at the air outlet. And is not particularly limited herein.
And S102, determining a target processing strategy matched with the target characteristic parameters.
Specifically, when receiving a target characteristic parameter sent by a sensor, the controller may match the target characteristic parameter with preset target characteristic information, so as to obtain a target processing strategy matched with the target characteristic parameter; when the target characteristic parameter includes a first current temperature of the packing layer, a current air volume of air at the air inlet, a second current temperature of air at the air inlet, and/or a current concentration of ammonia gas in gas at the air outlet, the preset target characteristic information may include a first preset reference temperature, a preset reference air volume, a second preset reference temperature, and/or a preset reference concentration.
Thus, when the target characteristic parameter comprises a first current temperature of a filler layer in the microwave-based stripping deamination apparatus, step S102 can be implemented by the following sub-steps:
and S1021, matching the first current temperature with a first preset reference temperature to obtain a first target matching result.
The first preset reference temperature can be used for representing that the internal temperature of a stripping tower of the microwave-based stripping deamination equipment is enough to indicate that the temperature of a packing layer is moderate and the internal temperature can be normally used for stripping deamination treatment. Also, the first preset reference temperature may be a first reference temperature range, such as 30-80 ℃.
Specifically, when the controller obtains a first current temperature of the packing layer through the sensor, the first current temperature may be matched with a first preset reference temperature, for example, the first current concentration is respectively compared with a maximum value and a minimum value of a first reference concentration range, so as to obtain a first target matching result.
Step S1022, when the first target matching result indicates that the first current temperature is higher than the first preset reference temperature, determining a target processing strategy including executing over-temperature protection.
Specifically, when the controller determines that the first target matching result indicates that the first current temperature of the packing layer is higher than the first preset reference temperature, the temperature in the stripping tower of the microwave-based gas stripping deamination equipment is considered to be too high and cannot be normally used for gas stripping deamination, and at the moment, a target processing strategy including execution of over-temperature protection can be determined, so that the equipment is protected from being damaged, and the service life of the equipment is prolonged; wherein the first current temperature of the filler layer being higher than the first preset reference temperature may include the first current temperature being greater than a maximum value of the first reference temperature range.
And step S1023, when the first target matching result indicates that the first current temperature is lower than the first preset reference temperature, determining a target processing strategy including increasing microwave power.
Specifically, when the controller determines that the first target matching result represents that the first current temperature of the packing layer is lower than a first preset reference temperature, the controller may determine that the internal temperature of an air stripping tower of the microwave-based air stripping deamination equipment is too low to be normally used for air stripping deamination, and at this time, may determine a target processing strategy including increasing microwave power so that the equipment can be normally used for air stripping deamination; wherein the first current temperature of the filler layer being lower than the first preset reference temperature may include the first current temperature being less than a minimum value of the first reference concentration range.
It should be noted that when the controller determines that the first current temperature is between the minimum value and the maximum value of the first reference concentration range, the internal temperature of the stripping tower of the microwave-based stripping deamination device can be considered to be normal and can be normally used for stripping deamination, and at this time, the stripping deamination operation can be controlled to be executed.
In the actual processing process, when the target characteristic parameter includes the current air volume of the air at the air inlet of the microwave-based stripping deamination device, the step S102 may be implemented by the following sub-steps:
and step S11, matching the current air volume with a preset reference air volume to obtain a second target matching result.
The preset reference air volume can be used for representing that the quantity of air entering from the air inlet is enough to completely extract ammonia gas decomposed from ammonium ions in the ammonia-containing wastewater. And, the preset reference air volume may be a reference air volume threshold value, or a reference air volume range. And is not limited herein.
Specifically, when the controller obtains the current air volume of the air at the air inlet via the sensor, the controller may further match the air volume with a preset reference air volume, for example, compare the current air volume with a reference air volume threshold, or compare the current air volume with a maximum value and a minimum value of a reference air volume range, respectively, so as to obtain a second target matching result.
And step S12, when the second target matching result indicates that the current air volume is higher than the preset reference air volume, determining a target processing strategy comprising increasing the spraying speed and/or reducing the wind speed of the fan.
Specifically, when the controller determines that the second target matching result represents that the current air volume of the air at the air inlet is higher than the preset reference air volume, the controller can determine that the air inlet volume of the air at the air inlet is too high, and at the moment, can determine a target processing strategy comprising increasing the spraying speed and/or reducing the fan air speed, so that the ammonia gas decomposed from the ammonia-containing wastewater can be quickly and efficiently extracted; the current air volume of the air at the air inlet is higher than the preset reference air volume, which may include that the current air volume is larger than the reference air volume threshold or the current air volume is larger than the maximum value of the reference air volume range.
And step S13, when the second target matching result represents that the current air volume is lower than the preset reference air volume, determining a target processing strategy comprising reducing the spraying speed and/or increasing the fan speed.
Specifically, when the controller determines that the second target matching result represents that the current air volume of the air at the air inlet is lower than the preset reference air volume, the controller can determine that the air intake volume of the air at the air inlet is too low, and at the moment, can determine a target processing strategy comprising reducing the spraying speed and/or reducing the fan speed, so that the ammonia gas decomposed from the ammonia-containing wastewater can be quickly and efficiently extracted; the current air volume of the air at the air inlet is lower than the preset reference air volume, and the current air volume is smaller than the minimum value of the reference air volume range.
It should be noted that when the controller determines that the current air volume is between the minimum value and the maximum value of the reference air volume range or the current air volume is equal to the reference air volume threshold value, the amount of air entering from the air inlet of the microwave-based stripping deamination equipment can be considered to be enough to completely extract ammonia gas decomposed from ammonium ions in ammonia-containing wastewater, and at this time, the stripping deamination processing operation can be controlled to be executed.
In the actual process, when the target characteristic parameter includes a second current temperature of air at the air inlet of the microwave-based stripping deamination device, the step S102 may be implemented by the following sub-steps:
and step S21, matching the second current temperature with a second preset reference temperature to obtain a third target matching result.
The second preset reference temperature can be equal to the first preset reference temperature, namely the second preset reference temperature can also be used for representing that the internal temperature of a stripping tower of the microwave-based stripping deamination equipment is enough to indicate that the temperature of the packing layer is moderate and the packing layer can be normally used for stripping deamination. And, the second preset reference temperature may be a second reference temperature range, such as 30-80 ℃.
Specifically, when the controller obtains a second current temperature of air at the air inlet of the microwave-based stripping deamination device via the sensor, the second current temperature may be further matched with a second preset reference temperature, for example, the second current temperature is respectively compared with a minimum value and a maximum value of a second reference temperature range, so as to obtain a third target matching result.
And step S22, when the third target matching result indicates that the second current temperature is higher than the second preset reference temperature, determining a target processing strategy including reducing microwave power.
Specifically, when the controller determines that the third target matching result represents that the second current temperature of the air at the air inlet is higher than the second preset reference temperature, the temperature of the air entering from the air inlet is considered to be too high, and at the moment, a target processing strategy including reduction of microwave power can be determined, so that the internal temperature of the stripping tower of the microwave-based stripping deamination equipment is ensured to meet the second preset reference temperature; wherein the second present temperature of the air at the air inlet being higher than the second preset reference temperature may include the second present temperature being greater than a maximum value of the second reference temperature range.
And step S23, when the third target matching result indicates that the second current temperature is lower than the second preset reference temperature, determining a target processing strategy including increasing microwave power.
Specifically, when the controller determines that the third target matching result represents that the second current temperature of the air at the air inlet is lower than the second preset reference temperature, the temperature of the air entering from the air inlet is considered to be too low, and at the moment, a target processing strategy for increasing the microwave power can be determined, so that the internal temperature of the stripping tower of the microwave-based stripping deamination equipment is ensured to meet the second preset reference temperature; wherein the second present temperature of the air at the air inlet being lower than the second preset reference temperature may include the second present temperature being less than a minimum value of the second reference temperature range.
It should be noted that when the controller determines that the second current temperature is between the minimum value and the maximum value of the second reference concentration range, the internal temperature of the stripping tower of the microwave-based stripping deamination device can be considered as normal and can be normally used for stripping deamination, and at this time, the operation of stripping deamination can be directly controlled and executed without using microwaves for catalytic heating.
In the actual processing process, when the target characteristic parameter includes the current concentration of ammonia gas in the gas at the gas outlet of the microwave-based stripping deamination device, the step S102 may be implemented by the following sub-steps:
and step S31, matching the current concentration with a preset reference concentration to obtain a fourth target matching result.
Wherein the preset reference concentration can be used for representing the concentration of the ammonia gas in the gas to indicate that the ammonia gas is a gas meeting the emission standard. The preset reference concentration may be a reference concentration threshold or a reference concentration range. And is not limited herein.
Specifically, when the controller obtains the current concentration of the ammonia gas in the gas at the gas outlet via the sensor, the current concentration may be further matched with a preset reference concentration, for example, the current concentration is compared with a reference concentration threshold, or the current concentration is respectively compared with the minimum value and the maximum value of a reference concentration range, so as to obtain a fourth target matching result.
And step S32, when the fourth target matching result indicates that the current concentration is higher than the preset reference concentration, determining a target processing strategy including executing ammonium sulfate generation.
Specifically, when the controller determines that the fourth target matching result represents that the current concentration of ammonia gas in gas at the gas outlet is higher than a preset reference concentration, the concentration of ammonia gas generated by decomposition of the microwave-based gas stripping deamination equipment is considered to be too high and can be used for generating salt, and at this time, a target processing strategy for generating ammonium sulfate can be determined to be executed, so that the ammonium sulfate generated in time and rapidly can be used as a raw material in a subsequent catalyst preparation process; wherein, the current concentration of the ammonia gas in the gas at the gas outlet being higher than the preset reference concentration may include the current concentration being greater than a reference concentration threshold or the current concentration being greater than a maximum value of a reference concentration range.
And step S33, when the fourth target matching result indicates that the current concentration is lower than the preset reference concentration, determining a target processing strategy including executing ammonia gas collection.
Specifically, when the controller determines that the fourth target matching result represents that the current concentration of ammonia in the gas at the gas outlet is lower than the preset reference concentration, the concentration of ammonia generated by decomposition of the microwave-based gas stripping deamination equipment is considered to be too low or moderate and can be used as a reducing agent, and at this time, the controller determines to execute a target processing strategy for collecting ammonia so as to be used as the reducing agent for desulfurization and denitrification or further decomposition hydrogen production in the follow-up process; the current concentration of the ammonia gas in the gas at the gas outlet being lower than the preset reference concentration may include the current concentration being lower than a reference concentration threshold, the current concentration being lower than a minimum value of a reference concentration range, or the current concentration being between the minimum value and the maximum value of the reference concentration range.
It should be noted that, when the target characteristic parameters obtained by the controller include at least two of the first current temperature of the filler layer, the current air volume of the air at the air inlet, the second current temperature of the air at the air inlet, and the current concentration of the ammonia gas in the air at the air outlet, matching the first current temperature with the first preset reference temperature, matching the current air volume with the preset reference air volume, matching the second current temperature with the second preset reference temperature, and matching the current concentration with the preset reference concentration may be performed in a corresponding manner, so as to obtain at least two corresponding target matching results, thereby determining a target processing strategy corresponding to the at least two target matching results. The specific matching process is as described in the foregoing embodiments, and is not described herein again.
And step S103, controlling and executing target processing operation according to the target processing strategy.
In the actual processing procedure, the specific implementation procedure of step S103 may include the following sub-steps:
and step S1031, when a target processing strategy comprising adjusting the spraying speed and/or adjusting the wind speed of the fan is determined, controlling and adjusting the current wind speed of the fan at the air inlet and/or the current spraying speed of a spraying layer in the stripping tower to obtain first target adjusted information.
Wherein the adjustment may comprise an increase or a decrease.
Specifically, when the controller determines a target processing strategy comprising adjusting the spraying speed and/or adjusting the air speed of the fan, the controller can determine that the air intake of the air at the air inlet is too high or too low, and at the moment, the controller can control and execute the adjustment operation aiming at the current air speed of the fan at the air inlet and/or the adjustment operation of the current spraying speed of the spraying layer in the stripping tower, so that the ammonia gas decomposed by ammonium ions in the ammonia-containing wastewater can be extracted quickly and efficiently.
The first target adjusted information may include an adjusted wind speed after the current wind speed of the fan at the air inlet is adjusted and/or an adjusted spray speed after the current spray speed of the spray layer in the stripping tower is adjusted.
And S1032, controlling to execute target air stripping deamination processing operation under the action of the first target adjusted information.
Specifically, the controller can control the equipment to perform air stripping and air stripping operation on the ammonia-containing wastewater under the action of the first target adjusted information, so that the aim of efficiently and quickly extracting ammonia gas is fulfilled.
It should be noted that step S103 can also be implemented by the following process:
and step S41, when the target processing strategy comprising the adjustment of the microwave power is determined, controlling to reduce the current power of the microwave sources around the tower waist of the stripping tower to obtain second target adjusted information.
Wherein the adjustment may comprise an increase or a decrease.
Specifically, when the controller determines a target processing strategy including adjusting the microwave power and/or adjusting the spraying speed, the temperature of air entering from the air inlet can be considered to be too high or too low, or the internal temperature of the stripping tower of the microwave-based stripping deamination equipment is considered to be too low and cannot be normally used for stripping deamination treatment, and at the moment, the controller can control and execute the adjustment operation of the current power of the microwave source around the tower waist of the stripping tower of the equipment, so that the internal temperature of the stripping tower of the microwave-based stripping deamination equipment is ensured to meet a second preset reference temperature.
Wherein the second target adjusted information may include an adjusted power after the current power of the microwave source around the tower waist of the stripping tower of the microwave-based stripping deamination device is adjusted.
And step S42, controlling and executing the target gas stripping deamination processing operation under the action of the second target adjusted information.
Specifically, the controller can control the equipment to perform air stripping and air stripping operation on the ammonia-containing wastewater under the action of the first target adjusted information, so that the aim of efficiently and quickly extracting ammonia gas is fulfilled.
It should be noted that, when the controller determines that the target processing strategy includes performing over-temperature protection, it may be considered that the temperature in the stripping tower of the microwave-based stripping deamination device is too high and cannot be normally used for stripping deamination, and at this time, the controller may control to start the over-temperature protection circuit, so as to achieve the purpose of protecting the device from being damaged and prolonging the service life of the device.
In addition, when the controller determines that the determination includes executing the target processing strategy for generating ammonium sulfate or executing the target processing strategy for collecting ammonia gas, the concentration of ammonia gas generated by decomposing ammonium ions in the ammonia-containing wastewater can be considered to be too high or too low, and at this time, the controller can start the ammonium sulfate generating unit or collect ammonia gas, so that the ammonium sulfate can be timely and quickly generated and can be used as a raw material in a subsequent catalyst preparation process, or the ammonium sulfate can be conveniently and subsequently used as a reducing agent for desulfurization and denitrification or further decomposing to produce hydrogen.
In the embodiment of the invention, the microwave-based gas stripping deamination method is applied to microwave-based gas stripping deamination equipment, and comprises the following steps: acquiring target characteristic parameters in microwave-based gas stripping deamination equipment; the target characteristic parameters comprise a first current temperature of the packing layer, a current air volume of air at the air inlet, a second current temperature of the air and/or a current concentration of ammonia gas in the gas at the air outlet; determining a target processing strategy matched with the target characteristic parameters; and controlling and executing target processing operation according to the target processing strategy. That is to say, the invention can realize the purpose of efficiently and rapidly extracting the ammonia gas in the ammonia-containing wastewater according to the first current temperature of the packing layer, the current air volume of the air at the air inlet, the second current temperature of the air and/or the current concentration of the ammonia gas in the air at the air outlet, solves the problem that the extraction efficiency of the ammonia gas in the ammonia-containing wastewater is not high due to the fact that a large amount of acid and alkali are needed and the content of waste in the wastewater is increased when the ammonia gas in the ammonia-containing wastewater is extracted by the traditional gas stripping deamination technology, greatly improves the extraction efficiency of the ammonia gas from the ammonia-containing wastewater, reduces the energy consumption, and prolongs the service life of the microwave-based gas stripping deamination equipment.
In another possible embodiment, the present invention further provides a microwave-based stripping deamination apparatus, as shown in fig. 2, comprising: the device comprises a gas stripping tower 1, a gas inlet 2, a fan 3, a microwave source 4, a liquid tank 5, a spraying layer 6, a packing layer 7, a gas outlet 8 and a controller (not shown in figure 2).
Wherein, spray layer 6 and packing layer 7 and can from the top down set gradually in the inside of gas stripping tower 1, liquid case 5 can set up in the bottom of gas stripping tower 1, microwave source 4 can set up on the outside lateral wall of gas stripping tower 1, air inlet 2 can set up on the bottom lateral wall of gas stripping tower 1, fan 3 can set up in air inlet 2 department, gas outlet 8 can set up in the top of gas stripping tower 1, the controller respectively with fan 3, microwave source 4 with spray layer 6 and be connected.
In the embodiment of the invention, the equipment can further comprise a pump 9 and a pipeline, and the liquid tank 5 can be connected with the spraying layer 6 through the pump 9 and the pipeline. Illustratively, the conduit may be a water pipe.
In the embodiment of the present invention, the stripper 1 may be made of stainless steel. As an example, the stripping column 1 may be shaped like a dedusting spray column.
Optionally, the fan 3 may be a positive pressure fan, and may be configured to blow air into the stripping tower 1 in a positive pressure manner, for example, the fan 3 may be configured to blow air from bottom to top when entering air into the stripping tower 1 through the air inlet 2.
Alternatively, the pump 9 may be arranged inside the tank 5 and a filter screen may be arranged around the pump 9.
It should be noted that, the filter screen disposed around the pump 9 can be used for filtering impurities such as dust and particulate matters, so that the pump 9 is not blocked, and the filter screen can be cleaned periodically.
In the embodiment of the present invention, the packing layer 7 may be disposed in the middle inside the stripper column 1, and the packing layer 7 may include a non-microwave-absorbing packing. Alternatively, the non-microwave absorbing filler may be alumina.
In the embodiment of the present invention, the number of the microwave sources 4 may be multiple, and the multiple microwave sources 4 may be distributed around the tower waist of the stripper tower 1.
Alternatively, a plurality of microwave sources 4 may be uniformly arranged around the tower waist of the stripper tower 1. Preferably, in order to prevent mutual interference between the microwaves, the adjacent microwave sources are vertically arranged, so that the microwave radiation power is increased while the mutual interference between the microwaves is avoided, the waste gas reaction is rapidly catalyzed, and the efficiency of decomposing ammonium ions into ammonia gas in the ammonia-containing wastewater is improved.
In an embodiment of the invention, the microwave source 4 may be used to irradiate the generated microwaves into the packing layer 7.
Alternatively, the packing layer 7 may be disposed in the middle of the inside of the stripper column 1, and the plurality of microwave sources 4 may be distributed around the column waist of the stripper column 1, whereby it can be determined that the plurality of microwave sources 4 are disposed around the outside of the packing layer 7.
It should be noted that, because the packing layer 7 includes the non-absorbing microwave packing, the microwave generated by the microwave source 4 can be transmitted more deeply when being irradiated into the packing layer 7, and the microwave can accelerate the decomposition of ammonium ions into free ammonia when being used as a catalyst, thereby accelerating the extraction efficiency of ammonia gas, and the extraction efficiency is higher than that of common heating, thereby not only improving the generation rate of ammonia gas, but also greatly reducing the concentration of residual ammonium ions in ammonia-containing wastewater.
In an embodiment of the present invention, the spray layer 6 may comprise a plurality of spray heads, and the plurality of spray heads may be used to spray the liquid in the liquid tank 5 into the interior of the stripper column 1.
Alternatively, the liquid in the liquid tank 5 may comprise ammonia-containing wastewater, which may comprise ammonium ions, i.e. NH4 +.
It should be noted that the ammonia-containing wastewater in the liquid tank 5 can enter the spray layer 6 through the pump 9 and the pipeline, and can be sprayed into the interior of the stripper column 1 by a plurality of spray heads in the spray layer 6.
In the embodiment of the present invention, the air outlet 8 may be disposed above the spray layer 6.
In the embodiment of the present invention, the apparatus may further include a sensor, and the sensor may be configured to measure the temperature of the filler layer 6, the air volume and the temperature of the air inlet 2, and the concentration of ammonia gas at the air inlet 8.
It should be noted that the equipment can also comprise a controller, and the controller can control the internal temperature of the stripper column 1 to be kept at 30-80 ℃ according to the temperature of the packing layer 6 measured by the sensor and the temperature of the air entering from the air inlet 2; the controller can also adjust the spraying speed of a plurality of spray heads in the spraying layer 6 and/or the power of the microwave source 4 according to the air volume entering air from the air inlet 2 and/or the concentration of ammonia gas at the air outlet 8, so that ammonium ions in the ammonia-containing wastewater in the liquid tank 5 can be quickly and efficiently decomposed into ammonia gas; the controller can also determine to execute the operation of collecting ammonia gas or the operation of generating ammonium sulfate according to the concentration of ammonia gas at the gas outlet 8, for example, the controller can be used for generating ammonium sulfate when the concentration of ammonia gas is too high, and the controller can be collected as a reducing agent for desulfurization and denitrification when the concentration of ammonia gas is too low, and can also be further decomposed to produce hydrogen.
Optionally, the device provided by the invention can promote NH4 ions in the ammonia-containing wastewater to be decomposed into NH3 by utilizing the catalytic action of microwaves, and the NH3 ions are extracted quickly and efficiently by stripping and stripping.
Illustratively, when air is blown into the stripping tower 1 through the air inlet 2 under the positive pressure action of the fan 3, ammonia-containing wastewater in the liquid tank 5 enters the spraying layer 6 under the action of the pump 9 and the pipeline and is sprayed into the stripping tower 1 in a spraying mode by a plurality of spray heads of the spraying layer 6, the microwave source 4 generatesThe raw microwaves can promote NH4 ions in the ammonia-containing wastewater to be rapidly decomposed into ammonia NH3, the decomposed ammonia is rapidly and efficiently extracted through gas stripping and air stripping, the generated NH3 can be discharged through an air outlet 8 and can be used as a reducing agent for desulfurization and denitrification, the generated NH3 can be further decomposed to produce hydrogen, the generated NH3 can be further used for producing ammonium sulfate, the generated ammonium sulfate can be recycled as a raw material in the preparation process of the catalyst, and the reaction equation related in the whole process comprises:
Figure BDA0002951295260000241
Figure BDA0002951295260000242
the embodiment of the invention discloses a microwave-based gas stripping deamination device, which comprises: the device comprises an air stripping tower, an air inlet, a microwave source, a liquid tank, a spraying layer, a packing layer, a fan, an air outlet and a controller; wherein, it sets gradually from top to bottom to spray layer and packing layer in the inside of gas stripping tower, the liquid case set up in the bottom of gas stripping tower, the microwave source set up in around the tower waist of gas stripping tower, the air inlet sets up on the bottom lateral wall of gas stripping tower, the gas outlet set up in the top of gas stripping tower, the fan sets up air inlet department, the controller respectively with the fan, the microwave source with the layer that sprays is connected. That is, when the ammonia-containing wastewater in the liquid tank is sprayed out in a spray mode under the action of the spray layer, the ammonia ions in the ammonia-containing wastewater can be promoted to be decomposed into ammonia under the catalytic action of microwaves generated by a microwave source, the ammonia at the decomposition position can be quickly and efficiently extracted through air stripping under the positive pressure action of a fan at an air inlet, acid and alkali are not needed in the whole extraction process, the generation of waste and salt is reduced, the extraction efficiency is higher than that of common heating, the ammonia generation rate is high, the concentration of residual ammonium ions is low, the ammonia-containing wastewater has the advantages of simple structure, safety, reliability, easiness in operation, low cost and capability of continuously running, and the ammonia-containing wastewater is widely applied in the field of environmental protection, so that the service life of microwave-based air stripping deamination equipment is greatly prolonged.
Fig. 3 shows a microwave-based stripping deamination apparatus provided in an embodiment of the present invention, and as shown in fig. 3, the apparatus includes: an obtaining module 301, a determining module 302 and a processing module 303, wherein: an obtaining module 301, configured to obtain a target characteristic parameter in a microwave-based gas stripping deamination device; the target characteristic parameters comprise a first current temperature of the packing layer, a current air volume of air at the air inlet, a second current temperature of the air and/or a current concentration of ammonia gas in the gas at the air outlet; a determining module 302, configured to determine a target processing policy matching the target feature parameter; and the processing module 303 is configured to control to execute the target processing operation according to the target processing policy. That is to say, the invention can realize the purpose of efficiently and quickly extracting the ammonia gas in the ammonia-containing wastewater according to the first current temperature of the packing layer, the current air quantity of the air at the air inlet, the second current temperature of the air and/or the current concentration of the ammonia gas in the air at the air outlet, solves the problem that the traditional gas stripping deamination technology needs a large amount of acid and alkali when extracting the ammonia gas in the ammonia-containing wastewater and increases the content of waste in the wastewater, so that the extraction efficiency of the ammonia gas from the ammonia-containing wastewater is not high, greatly improves the extraction efficiency of the ammonia gas from the ammonia-containing wastewater, reduces the energy consumption, and prolongs the service life of the microwave-based gas stripping deamination equipment.
It should be noted that, for the descriptions of the same steps and the same contents in this embodiment as those in other embodiments, reference may be made to the descriptions in other embodiments, which are not described herein again.
The invention relates to a microwave-based air stripping deamination device, which comprises: the acquisition module is used for acquiring target characteristic parameters in the gas stripping deamination equipment based on the microwaves; the target characteristic parameters comprise a first current temperature of the packing layer, a current air volume of air at the air inlet, a second current temperature of the air and/or a current concentration of ammonia gas in the gas at the air outlet; the determining module is used for determining a target processing strategy matched with the target characteristic parameters; and the processing module is used for controlling and executing target processing operation according to the target processing strategy. That is, when the ammonia-containing wastewater in the liquid tank is sprayed out in a spray mode under the action of the spray layer, the ammonia ions in the ammonia-containing wastewater can be promoted to be decomposed into ammonia under the catalytic action of microwaves generated by a microwave source, the ammonia at the decomposition position can be quickly and efficiently extracted through air stripping under the positive pressure action of a fan at an air inlet, acid and alkali are not needed in the whole extraction process, the generation of waste and salt is reduced, the extraction efficiency is higher than that of common heating, the ammonia generation rate is high, the concentration of residual ammonium ions is low, the ammonia-containing wastewater has the advantages of simple structure, safety, reliability, easiness in operation, low cost and capability of continuously running, and the ammonia-containing wastewater is widely applied in the field of environmental protection, so that the service life of microwave-based air stripping deamination equipment is greatly prolonged.
Fig. 4 is a schematic diagram of a microwave-based stripping deamination control device according to another embodiment of the present invention, where the control device may be integrated in a terminal device or a chip of the terminal device, and the device includes: memory 401, processor 402.
The memory 401 is used for storing programs, and the processor 402 calls the programs stored in the memory 401 to execute the above-mentioned method embodiments. The specific implementation and technical effects are similar, and are not described herein again.
Preferably, the present invention also provides a computer readable storage medium comprising a program which, when executed by a processor, is adapted to perform the above-described method embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (in english: processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Claims (10)

1. The microwave-based gas stripping deamination method is applied to microwave-based gas stripping deamination equipment, and comprises the following steps:
acquiring target characteristic parameters in microwave-based gas stripping deamination equipment; the target characteristic parameters comprise a first current temperature of the packing layer, a current air volume of air at the air inlet, a second current temperature of the air and/or a current concentration of ammonia gas in the gas at the air outlet;
determining a target processing strategy matched with the target characteristic parameters;
and controlling and executing target processing operation according to the target processing strategy.
2. The microwave-based gas stripping deamination method according to claim 1, wherein when the target characteristic parameter comprises a first current temperature of the filler layer, the determining a target processing strategy matching the target characteristic parameter comprises:
matching the first current temperature with a first preset reference temperature to obtain a first target matching result;
when the first target matching result indicates that the first current temperature is higher than the first preset reference temperature, determining a target processing strategy including executing over-temperature protection;
and when the first target matching result indicates that the first current temperature is lower than the first preset reference temperature, determining a target processing strategy comprising increasing microwave power.
3. The microwave-based stripping deamination method according to claim 1, wherein when the target characteristic parameter comprises a current air volume of air at the air inlet, the determining a target processing strategy matching the target characteristic parameter comprises:
matching the current air volume with a preset reference air volume to obtain a second target matching result;
when the second target matching result represents that the current air volume is higher than the preset reference air volume, determining a target processing strategy comprising increasing the spraying speed and/or reducing the air speed of the fan;
and when the second target matching result represents that the current air volume is lower than the preset reference air volume, determining a target processing strategy comprising reducing the spraying speed and/or increasing the fan speed.
4. The microwave-based stripping deamination method of claim 1, wherein when the target characteristic parameter comprises a second current temperature of air at the air inlet, the determining a target processing strategy that matches the target characteristic parameter comprises:
matching the second current temperature with a second preset reference temperature to obtain a third target matching result;
when the third target matching result represents that the second current temperature is higher than the second preset reference temperature, determining a target processing strategy comprising reducing microwave power;
and when the third target matching result indicates that the second current temperature is lower than the second preset reference temperature, determining a target processing strategy comprising increasing the microwave power.
5. The microwave-based stripping deamination method according to claim 1, wherein when the target characteristic parameter comprises a current concentration of ammonia gas in the gas at the gas outlet, the determining a target processing strategy matching the target characteristic parameter comprises:
matching the current concentration with a preset reference concentration to obtain a fourth target matching result;
when the fourth target matching result indicates that the current concentration is higher than the preset reference concentration, determining a target processing strategy including executing ammonium sulfate generation;
and when the fourth target matching result indicates that the current concentration is lower than the preset reference concentration, determining to execute a target processing strategy for collecting ammonia gas.
6. The microwave-based air stripping deamination method according to claim 2, wherein the controlling execution of a target processing operation according to the target processing strategy comprises:
when a target processing strategy comprising adjusting the spraying speed and/or adjusting the wind speed of the fan is determined, controlling and adjusting the current wind speed of the fan at the air inlet and/or the current spraying speed of a spraying layer in the stripping tower to obtain first target adjusted information; wherein the adjustment comprises an increase or a decrease;
and controlling to execute target gas stripping deamination processing operation under the action of the first target adjusted information.
7. The microwave-based stripping deamination method according to claim 3, wherein the controlling execution of the target processing operation according to the target processing strategy comprises:
when a target processing strategy comprising the adjustment of the microwave power is determined, controlling to reduce the current power of the microwave sources around the tower waist of the stripping tower to obtain second target adjusted information; wherein the adjustment comprises an increase or a decrease;
and controlling to execute target gas stripping deamination processing operation under the action of the second target adjusted information.
8. An air stripping deamination apparatus based on microwaves, the apparatus comprising: the device comprises an air stripping tower, an air inlet, a microwave source, a liquid tank, a spraying layer, a packing layer, a fan, an air outlet and a controller;
wherein, it sets gradually from the top down to spray layer and packing layer in the inside of gas stripping tower, the liquid case set up in the bottom of gas stripping tower, the microwave source set up in around the tower waist of gas stripping tower, the air inlet sets up on the bottom lateral wall of gas stripping tower, the gas outlet set up in the top of gas stripping tower, the fan sets up air inlet department, the controller respectively with the fan the microwave source with spray the layer and connect.
9. The utility model provides an air stripping deamination device based on microwave, its characterized in that, the device includes: the device comprises an acquisition module, a determination module and a processing module, wherein:
the acquisition module is used for acquiring target characteristic parameters in the microwave-based gas stripping deamination equipment; the target characteristic parameters comprise a first current temperature of the packing layer, a current air volume of air at the air inlet, a second current temperature of the air and/or a current concentration of ammonia gas in the gas at the air outlet;
the determining module is used for determining a target processing strategy matched with the target characteristic parameters;
and the processing module is used for controlling and executing target processing operation according to the target processing strategy.
10. The utility model provides an air stripping deamination controlling means based on microwave which characterized in that, controlling means includes: a processor and a memory, the memory for storing instructions, the processor for executing the instructions stored in the memory to cause the control device to perform the microwave-based stripping deamination method of any of claims 1-7.
CN202110210601.5A 2021-02-25 2021-02-25 Microwave-based gas stripping deamination method and control system thereof Pending CN114956249A (en)

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