WO2020151545A1

WO2020151545A1 - Plasma catalysis method and biological method-based organic waste gas treatment device

Info

Publication number: WO2020151545A1
Application number: PCT/CN2020/072206
Authority: WO
Inventors: 沈中增; 郭燕蕾; 余莉萍; 吴峰
Original assignee: 苏州敬天爱人环境科技有限公司
Priority date: 2019-01-26
Filing date: 2020-01-15
Publication date: 2020-07-30
Also published as: CN209714700U

Abstract

A plasma catalysis method and biological method-based organic waste gas treatment device, comprising a humidity regulator (1); a gas outlet of the humidity regulator (1) is in communication with a gas inlet of a three-way reversing valve (2), and one gas outlet of the three-way reversing valve (2) is in communication with a gas inlet of a plasma catalytic device (3), a gas outlet of the plasma catalytic device (3) is in communication with a gas inlet of a biological purification device (4); the plasma catalytic device (3) comprises a fixing frame (31), an inner wall of the fixing frame (31) is fixedly connected to a plasma reactor (32), an alternating current power supply (33) is fixedly connected to one side of the fixing frame (31), and an inner wall of the plasma reactor (32) is fixedly connected to a metal mesh (34).

Description

Equipment for treating organic waste gas by plasma catalysis method and biological method

Technical field

The utility model relates to the technical field of waste gas treatment, in particular to equipment for treating organic waste gas by a plasma catalysis method and a biological method.

Background technique

Exhaust gas treatment refers to the pretreatment of exhaust gas generated in industrial sites and factory workshops before external discharge to meet the national exhaust gas emission standards. General exhaust gas treatment includes organic waste gas treatment, dust waste gas treatment, and acid-base waste gas treatment , Odor exhaust gas treatment and air sterilization and purification, etc. The principles of exhaust gas treatment include activated carbon adsorption method, catalytic combustion method, catalytic oxidation method, acid-base neutralization method, plasma method and other principles. According to the 2008 Beijing Olympic Games rowing paint exhaust gas Treatment project supplier-Shanghai Anjule Environmental Protection Technology Co., Ltd. has shown that the use of biological agent absorption method is a new method different from the above principles. Anjule has been successfully used in the top 500 Foxconn, Sinopec, COFCO, In projects such as SAIC, a different principle has proven to be effective. Depending on the type of waste gas, different waste gas treatment devices are usually used. When the composition of the waste gas is more complicated, a single treatment device cannot completely remove the pollutants contained in the waste gas. The purification effect is not good, and it is easy to cause secondary pollution. Replace the cleaning device The operation is cumbersome and causes inconvenience to the exhaust gas treatment.

technical problem

In view of the shortcomings of the prior art, the present utility model provides a plasma catalysis method and biological method to treat organic waste gas equipment, which solves the current need to use different waste gas treatment devices according to different types of waste gas. When the composition of the waste gas is more complicated At this time, a single treatment device cannot completely remove the pollutant impurities contained in the exhaust gas, and the purification effect is not good, and it is easy to cause secondary pollution. The replacement of the cleaning device is relatively cumbersome and causes inconvenience to the exhaust gas treatment.

Technical solutions

In order to achieve the above objectives, the present utility model is achieved through the following technical solutions: a plasma catalysis method and biological method to treat organic waste gas equipment, including a humidity regulator, the air outlet of the humidity regulator is connected with a three-way reversing valve An air inlet, one of the air outlets of the three-way reversing valve is connected to the air inlet of the plasma catalytic device, and the air outlet of the plasma catalytic device is connected to the air inlet of the biological purification device;

The plasma catalytic device includes a fixed frame, the inner wall of the fixed frame is fixedly connected with a plasma reactor, one side of the fixed frame is fixedly connected with an AC power source, the inner wall of the plasma reactor is fixedly connected with a metal mesh, and the fixed frame A discharge electrode is fixedly connected to the bottom, and an asbestos mesh is fixedly connected to the inner wall of the metal mesh;

The biological purification device includes a bioreactor, the top of the bioreactor is provided with an exhaust port, the inside of the bioreactor is filled with biological filler, the drain port of the bioreactor is connected with a nutrient solution storage tank, and the The liquid outlet of the nutrient solution storage tank is connected to the liquid inlet on the top of the bioreactor through a water pump. The inner wall of the bioreactor is embedded with an electric heating wire, one end of the electric heating wire is connected with a temperature control switch, and the bottom of the temperature control switch passes The wire is connected to a power source.

Preferably, the asbestos net is loaded with a catalyst.

Preferably, the AC power supply, the metal mesh and the discharge electrode are connected by wires to form a closed circuit.

Preferably, the second air outlet of the three-way reversing valve is in communication with the air inlet of the biological purification device.

Preferably, the biological filler is drip filter or filter filler, and the probe of the temperature control switch extends into the inside of the bioreactor.

Preferably, the air inlet of the humidity regulator is in communication with the exhaust gas source.

Beneficial effect

The utility model provides equipment for treating organic waste gas by a plasma catalysis method and a biological method. Has the following beneficial effects:

(1) The equipment for treating organic waste gas by plasma catalysis method and biological method is connected with the air inlet of a three-way reversing valve through the air outlet of the humidity regulator, one of the air outlets of the three-way reversing valve Connected with the air inlet of the plasma catalytic device, the air outlet of the plasma catalytic device is connected with the air inlet of the biological purification device, and the second air outlet of the three-way reversing valve is connected with the air inlet of the biological purification device The air inlet of the humidity regulator is connected with the exhaust gas source. According to the different components of the exhaust gas, different devices can be selected for purification through the three-way reversing valve. The plasma catalytic device can purify difficult-to-biodegradable impurities and biological purification The device can purify easily biodegradable magazines, and achieves the purpose of simple operation, thorough purification, and no secondary pollution.

(2) In the apparatus for treating organic waste gas by plasma catalysis and biological methods, an electric heating wire is embedded through the inner wall of the bioreactor, one end of the electric heating wire is connected with a temperature control switch, and the bottom of the temperature control switch is connected by a wire There is a power supply, the probe of the temperature control switch extends to the inside of the bioreactor, and the environmental temperature during biological purification has a greater impact on the purification effect. Setting the closing conditions of the temperature control switch can adjust the internal temperature of the bioreactor in real time to keep it in The optimal temperature achieves the purpose of better purification effect.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the utility model;

Figure 2 is a schematic diagram of the structure of the plasma catalytic device of the present invention.

In the picture: 1 humidity regulator, 2 three-way reversing valve, 3 plasma catalytic device, 4 biological purification device, 31 fixed frame, 32 plasma reactor, 33 AC power supply, 34 metal mesh, 35 discharge electrode, 36 asbestos mesh , 41 bioreactor, 42 exhaust port, 43 biological filler, 44 nutrient solution storage tank, 45 water pump, 46 electric heating wire, 47 temperature control switch, 48 power supply.

Embodiments of the invention

The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

Please refer to Figure 1-2, this utility model provides a technical solution: a plasma catalysis method and biological method to treat organic waste gas equipment, including humidity regulator 1, the air outlet of the humidity regulator 1 is connected with a three-way reversing valve The air inlet of 2 is convenient to control the exhaust gas into different devices. One of the air outlets of the three-way reversing valve 2 is connected to the air inlet of the plasma catalytic device 3, which facilitates the purification of difficult-to-biodegradable exhaust gas. The plasma catalytic device 3 The air outlet is connected to the air inlet of the biological purification device 4, which facilitates the purification of easily biodegradable waste gas;

The plasma catalytic device 3 includes a fixed frame 31, the inner wall of the fixed frame 31 is fixedly connected with a plasma reactor 32, one side of the fixed frame 31 is fixedly connected with an AC power source 33, the inner wall of the plasma reactor 32 is fixedly connected with a metal mesh 34, and the bottom of the fixed frame 31 A discharge electrode 35 is fixedly connected, and an asbestos net 36 is fixedly connected to the inner wall of the metal mesh 34;

The biological purification device 4 includes a bioreactor 41. The top of the bioreactor 41 is provided with an exhaust port 42. The inside of the bioreactor 41 is filled with biological filler 43. The drain port of the bioreactor 41 is connected with a nutrient solution storage tank 44. The liquid outlet of the storage tank 44 is communicated with the liquid inlet on the top of the bioreactor 41 through a water pump 45. The inner wall of the bioreactor 41 is embedded with an electric heating wire 46, and one end of the electric heating wire 46 is connected with a temperature control switch 47, which is convenient according to the bioreactor 41 The internal temperature condition controls the heating of the electric heating wire to keep the inside of the bioreactor 41 at a proper temperature, and the bottom of the temperature control switch 47 is connected with a power source 48 through a wire.

The asbestos net 36 is loaded with a catalyst.

The AC power source 33, the metal mesh 34 and the discharge electrode 35 are connected by wires to form a closed circuit.

The second air outlet of the three-way reversing valve 2 is in communication with the air inlet of the biological purification device 4.

The biological filler 43 is a drip filter or filter filler, and the probe of the temperature control switch 47 extends to the inside of the bioreactor 41.

The air inlet of the humidity regulator 1 communicates with the exhaust gas source.

When in use, select the corresponding device through the three-way reversing valve 2 according to whether the exhaust gas contains non-biodegradable components. When the gas does not contain non-biodegradable components, connect the three-way reversing valve 2 with the biological purification device 4 The air outlet is opened, and the exhaust gas passes through the humidity regulator 1 to adjust the humidity and enters the biological purification device 4 through the three-way reversing valve 2. After being purified by the biological purification device 4, carbon dioxide and water are respectively eliminated. When the gas contains refractory biodegradable For composition, connect the three-way reversing valve 2 with the plasma catalytic device 3, and the exhaust gas passes through the humidity regulator 1 to adjust the humidity and then enters the plasma catalytic device 4 through the three-way reversing valve 2, using the oxidation of high-energy electrons and the catalytic effect of the catalyst It is converted into easily biodegradable components, and then enters the biological purification device 4 through the air outlet. After purification by the biological purification device 4, the carbon dioxide and water generated are removed separately. When the temperature inside the bioreactor 41 is lower than the temperature control switch 47 setting The temperature control switch 47 is closed, and the heating wire 46 is energized for heating. When the internal temperature of the bioreactor 41 is higher than the temperature set by the temperature control switch 47, the temperature control switch is opened and the heating wire 46 stops heating.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply one of these entities or operations. There is any such actual relationship or order between. Moreover, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes those that are not explicitly listed Other elements of, or also include elements inherent to this process, method, article or equipment. Without more restrictions. The sentence "including an element defined by ... does not exclude the existence of other identical elements in the process, method, article or equipment including the element."

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. , Replacements and modifications, the scope of the utility model is determined by the appended claims.

Claims

A plasma catalysis method and biological method for treating organic waste gas equipment, comprising a humidity regulator (1), characterized in that: the air outlet of the humidity regulator (1) is connected to the air inlet of a three-way reversing valve (2) One of the air outlets of the three-way reversing valve (2) is connected with the air inlet of the plasma catalytic device (3), and the air outlet of the plasma catalytic device (3) is connected with the biological purification device (4). ) The air inlet;

The plasma catalytic device (3) includes a fixed frame (31), the inner wall of the fixed frame (31) is fixedly connected with a plasma reactor (32), and one side of the fixed frame (31) is fixedly connected with an AC power source (33). ), the inner wall of the plasma reactor (32) is fixedly connected with a metal mesh (34), the bottom of the fixed frame (31) is fixedly connected with a discharge electrode (35), and the inner wall of the metal mesh (34) is fixedly connected with an asbestos mesh (36);

The biological purification device (4) includes a bioreactor (41), the top of the bioreactor (41) is provided with an exhaust port (42), and the inside of the bioreactor (41) is filled with biological fillers (43) The outlet of the bioreactor (41) is connected with a nutrient solution storage tank (44), and the outlet of the nutrient solution storage tank (44) is connected to the top of the bioreactor (41) through a water pump (45). The liquid port is connected, the inner wall of the bioreactor (41) is embedded with a heating wire (46), one end of the heating wire (46) is connected with a temperature control switch (47), and the bottom of the temperature control switch (47) is connected by a wire There is a power supply (48).
The equipment for treating organic waste gas by plasma catalysis method and biological method according to claim 1, characterized in that: the asbestos net (36) is loaded with a catalyst.
The equipment for treating organic waste gas by plasma catalysis method and biological method according to claim 1, characterized in that: the AC power supply (33), the metal mesh (34) and the discharge electrode (35) are connected by wires. Form a closed circuit.
The equipment for treating organic waste gas by plasma catalysis method and biological method according to claim 1, characterized in that: the second air outlet of the three-way reversing valve (2) and the biological purification device (4) The air inlet is connected.
The equipment for treating organic waste gas by plasma catalysis method and biological method according to claim 1, characterized in that: the biological filler (43) is a drip filter or filter filler, and the probe of the temperature control switch (47) Extend to the inside of the bioreactor (41).
The equipment for treating organic waste gas by plasma catalysis method and biological method according to claim 1, characterized in that: the air inlet of the humidity regulator (1) is in communication with the exhaust gas source.