CN114984717A - Device for adsorbing organic waste gas by using circulating activated carbon - Google Patents
Device for adsorbing organic waste gas by using circulating activated carbon Download PDFInfo
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- CN114984717A CN114984717A CN202210652548.9A CN202210652548A CN114984717A CN 114984717 A CN114984717 A CN 114984717A CN 202210652548 A CN202210652548 A CN 202210652548A CN 114984717 A CN114984717 A CN 114984717A
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- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
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- B01J20/34—Regenerating or reactivating
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- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/40096—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating by using electrical resistance heating
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Abstract
The invention provides a device for adsorbing organic waste gas by circulating activated carbon, which comprises: the device comprises a cavity, a motor, a rotary table, an activated carbon blade, a resistance heating rod, an ultrasonic generator, an electric sprayer, a PLC electric controller and an upper computer; the resistance heating rod is arranged in the thermal desorption analysis chamber; the electric sprayer is arranged at the bottom of the ultrasonic adsorption chamber, and the ultrasonic generator is arranged on the side wall of the ultrasonic adsorption chamber; the number of the active carbon blades is a plurality, the active carbon blades are arranged on a turntable, the turntable drives the active carbon blades to rotate, and the rotation direction is from a waste gas adsorption cavity to an ultrasonic wave adsorption cavity, then to a thermal desorption analysis cavity, and then to the waste gas adsorption cavity to sequentially circulate; the motor, the resistance heating rod, the electric sprayer and the ultrasonic generator are respectively and electrically connected with the PLC; the PLC is in communication connection with an upper computer, and the motor, the resistance heating rod, the ultrasonic generator and the electric sprayer are controlled to work according to control signals generated by the upper computer.
Description
Technical Field
The invention belongs to the technical field of waste gas treatment equipment, and particularly relates to a device for adsorbing organic waste gas by using circulating activated carbon.
Background
In current industrial organic waste gas treatment, activated carbon adsorption is often selected as the last adsorption process. Due to the easy saturation characteristic of the activated carbon, the adsorption capacity of the activated carbon is limited, and the activated carbon does not have any adsorption capacity after the adsorption pore diameter is full of target molecules, so that the effect of purifying tail gas is lost. After the activated carbon used in a certain stage reaches the adsorption saturation amount, the activated carbon needs to be unpacked and replaced. When the box is opened firstly, when the temperature changes or the box is vibrated, the supersaturated tail gas in the activated carbon adsorption box possibly escapes from time to time due to harmful gas, secondary environmental pollution is caused, condensed water vapor often exists in the activated carbon, liquid leakage possibly occurs in the replacement process, secondary environmental pollution is caused, and finally the activated carbon is replaced and is burnt as solid waste or dangerous waste, so that great challenge is brought to sustainable development.
Patent document No. CN114042364A discloses a method of dealing with exhaust gas of different concentrations by changing the amount of activated carbon, but the method is complicated in terms of operation and is prone to cause secondary pollution during replacement.
Patent document CN215963594U discloses a method for removing organic matters on activated carbon by a hot nitrogen method, but the cost of the nitrogen production process is relatively high, the floor space is greatly increased, and the arrangement at the process site causes problems.
Patent No. CN215655190U discloses a method for removing organic substances by using a method of combining vacuum and microwaves, but microwaves of the same frequency cannot remove specific organic substances.
Patent No. CN113952946A discloses a scraping method for organic matter on the surface of activated carbon by using a scraper, which can damage the surface of activated carbon, generate particles, and increase the difficulty of subsequent treatment.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide an apparatus for adsorbing organic waste gas by using circulating activated carbon.
The invention provides a device for adsorbing organic waste gas by circulating activated carbon, which is characterized by comprising the following components: the device comprises a cavity, a motor, a rotary table, an activated carbon blade, a resistance heating rod, an ultrasonic generator, an electric sprayer, a PLC electric controller and an upper computer; the cavity is divided into an upper cavity and a lower cavity by a partition plate, and the upper cavity is divided into a left upper cavity and a right upper cavity by the partition plate; one side chamber of the upper chamber is connected with an organic waste gas conveying pipeline to serve as a waste gas adsorption chamber; the other side chamber of the upper chamber is connected with an exhaust pipeline and used as a thermal desorption analysis chamber, and the resistance heating rod is arranged in the thermal desorption analysis chamber; the lower cavity is an ultrasonic adsorption cavity, the electric sprayer is arranged at the bottom of the ultrasonic adsorption cavity, and the ultrasonic generator is arranged on the side wall of the ultrasonic adsorption cavity; the partition board is provided with a channel, the turntable is positioned at the channel, and the turntable is driven by the motor to rotate; the number of the active carbon blades is a plurality, the active carbon blades are arranged on a turntable, the turntable drives the active carbon blades to rotate at the passage, and the rotation direction of the active carbon blades sequentially circulates from the waste gas adsorption cavity to the ultrasonic adsorption cavity, then to the thermal desorption cavity and then to the waste gas adsorption cavity; the motor, the resistance heating rod, the electric sprayer and the ultrasonic generator are respectively and electrically connected with the PLC; the PLC is in communication connection with the upper computer and controls the motor, the resistance heating rod, the ultrasonic generator and the electric sprayer to work according to control signals generated by the upper computer.
Further, the apparatus for adsorbing organic waste gas by using circulating activated carbon according to the present invention may further include: the number of the active carbon blades is three, the three active carbon blades are positioned on the same vertical plane, and any two adjacent active carbon blades form an included angle of 120 degrees with the rotation center of the turntable; the motor is a motor rotating at an angle of 120 degrees; when the active carbon blades are static, the three active carbon blades are respectively positioned in the waste gas adsorption cavity, the ultrasonic adsorption cavity and the thermal desorption cavity.
Further, the apparatus for adsorbing organic waste gas by using circulating activated carbon according to the present invention may further include: wherein, the host computer is provided with: the device comprises a PID index temporary storage module, a first rule operation module and a motor control signal generation module; the PID index temporary storage module is used for temporarily storing PID index data of the organic waste gas to be treated; the first rule operation module is used for calculating the static time of the activated carbon blade according to the following rule: when the PID index is less than 100ppb, the rest time is 1 minute; when the PID index is less than or equal to 100ppb and less than or equal to 1000ppb, the rest time is 5 minutes; when the PID index is more than 1000ppb and less than or equal to 10000ppb, the rest time is 10 minutes; and the motor control signal generation module generates a corresponding motor control signal according to the static time of the activated carbon blade.
Further, the apparatus for adsorbing organic waste gas by using circulating activated carbon according to the present invention may further include: wherein, the host computer still is provided with: the device comprises a PID index temporary storage module, a second rule operation module and an ultrasonic elution control signal generation module; the PID index temporary storage module is used for temporarily storing PID index data of the organic waste gas to be treated; the second rule operation module is used for calculating the ultrasonic frequency and the ultrasonic elution duration according to the following rules: when the PID index is less than 100ppb, the ultrasonic frequency is 20KHz, and the ultrasonic elution lasts for 1 minute; when the PID index is more than or equal to 100ppb and less than or equal to 1000ppb, the ultrasonic frequency is 40KHz, and the ultrasonic elution lasts for 5 minutes; when the PID index is more than 1000ppb and less than or equal to 10000ppb, the ultrasonic frequency is 80KHz, and the ultrasonic elution lasts for 10 minutes; the ultrasonic elution control signal generation module generates a corresponding ultrasonic generator control signal according to the ultrasonic frequency and the ultrasonic elution duration time, and generates a corresponding electric sprayer control signal according to the ultrasonic elution duration time.
Further, the apparatus for adsorbing organic waste gas by using circulating activated carbon according to the present invention may further include: wherein, the host computer still is provided with: the PID index temporary storage module, the third rule operation module and the resistance heating control signal generation module; the PID index temporary storage module is used for temporarily storing PID index data of the organic waste gas to be treated; the third rule operation module is used for calculating the preset heating temperature in the cavity according to the following rule: when the PID index is less than 100ppb, the preset heating temperature in the cavity is 150 ℃; when the PID index is more than or equal to 100ppb and less than or equal to 1000ppb, the preset heating temperature in the cavity is 250 ℃; when the PID index is more than 1000ppb and less than or equal to 10000ppb, the preset heating temperature in the cavity is 350 ℃; and the resistance heating control signal generation module generates a resistance heater control signal corresponding to the preset heating temperature in the cavity.
Further, the apparatus for adsorbing organic waste gas by using circulating activated carbon according to the present invention may further include: and the PID gas detector is connected with the upper computer and is used for uploading the PID index data of the treated organic waste gas obtained by detection to the upper computer.
Further, the device for adsorbing organic waste gas by using the circulating activated carbon provided by the invention can also have the following characteristics: the upper computer is provided with a PID index input module, and the PID index input module is used for manually inputting known PID index data of the treated organic waste gas by a user.
Further, the apparatus for adsorbing organic waste gas by using circulating activated carbon according to the present invention may further include: wherein, a plurality of adsorption holes are uniformly distributed on the active carbon blade.
Further, the device for adsorbing organic waste gas by using the circulating activated carbon provided by the invention can also have the following characteristics: wherein, be provided with communicating pipe between thermal desorption analysis chamber and the ultrasonic wave adsorption chamber, communicating pipe extends to the ultrasonic wave adsorption chamber.
Further, the apparatus for adsorbing organic waste gas by using circulating activated carbon according to the present invention may further include: wherein, the bottom of the ultrasonic adsorption cavity is also provided with a drain pipe.
The invention has the following functions and effects:
the device for adsorbing organic waste gas by using the circulating activated carbon is provided with a waste gas adsorption cavity, an ultrasonic adsorption cavity and a thermal desorption and desorption cavity, and an activated carbon blade rotates by 120 degrees each time and sequentially passes through the waste gas adsorption cavity, the ultrasonic adsorption cavity and the thermal desorption and desorption cavity, the ultrasonic adsorption cavity is internally provided with an electric sprayer and an ultrasonic generator to complete ultrasonic elution treatment, the thermal desorption and desorption cavity is used for completing thermal desorption treatment of the waste gas by resistance heating, and one process is completed to complete an adsorption and regeneration process of treating the organic waste gas by using the activated carbon. In the process, the surface of the active carbon is physically damaged, and the subsequent treatment problem is avoided. The device realizes the regeneration of the active carbon, and has practical industrial application value and popularization significance.
In addition, the adsorption retention time of the activated carbon blades in the waste gas adsorption cavity, the frequency and the duration of ultrasonic waves, the spraying duration of the electric sprayer and the resistance heating temperature of the circulating activated carbon organic waste gas adsorption device work correspondingly according to the PID (proportion integration differentiation) index of the organic waste gas, and the device can deal with tail gas with different concentrations, and is more environment-friendly and efficient.
In addition, the cavity of the device for adsorbing the organic waste gas by the circulating activated carbon is divided into an upper layer and a lower layer, the upper layer is divided into a left cavity and a right cavity, the cavities are separated scientifically and reasonably, the floor area of the device is reduced, and the land requirement of the device in use can be greatly reduced.
Drawings
FIG. 1 is a schematic view showing the internal structure of a chamber of an apparatus for adsorbing an organic waste gas by using a circulating activated carbon according to example 1 of the present invention;
FIG. 2 is a side view of the mounting positions of the rotary table and the activated carbon blades in the cavity in embodiment 1 of the invention;
FIG. 3 is an electric control schematic view of an apparatus for adsorbing an organic waste gas by circulating activated carbon in example 1 of the present invention;
fig. 4 is a block diagram of functional modules of the upper computer in embodiment 1 of the present invention;
FIG. 5 is an electric control schematic view of an apparatus for adsorbing an organic waste gas by circulating activated carbon in example 2 of the present invention;
fig. 6 is a block diagram of functional modules of the upper computer in embodiment 2 of the present invention.
Reference numerals: a cavity 1; a channel 111; an exhaust gas adsorption chamber 11; an ultrasonic adsorption chamber 12; a thermal desorption chamber 13; an organic waste gas delivery pipe 14; an exhaust duct 15; a communicating tube 16; a horizontal partition 17; a vertical partition 18; a blow-off pipe 19; a turntable 2; a motor 3; a rotating shaft 31; an activated carbon leaf 4; a resistance heating rod 5; an ultrasonic generator 6; an electric sprayer 7; an upper computer 8; a PID index temporary storage module 801; a first rule operation module 802; a motor control signal generation module 803; a second rule operation module 804; an ultrasonic elution control signal generation module 805; a third rule operation module 806; a resistance heating control signal generation module 807; a PID index input module 808; a PLC electrical controller 9; a PID gas detector 10.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the following embodiments are specifically described in the technical scheme of the invention with reference to the attached drawings.
< example 1>
As shown in fig. 1 and 3, the device for adsorbing organic waste gas by using circulating activated carbon comprises a cavity 1, a rotary table 2, a motor 3, activated carbon blades 4, a resistance heater 5, an ultrasonic generator 6, a sprayer 7, a PLC electric controller and an upper computer 8.
Cavity 1 is separated for last cavity and lower cavity through horizontally baffle 17, and the cavity is gone up for cavity and right side upper chamber through vertical baffle 18 in the left side to the upper chamber. One side chamber of the upper chamber is connected with an organic waste gas conveying pipeline 14 to be used as a waste gas adsorption chamber 11. The other side chamber of the upper chamber is connected to an exhaust duct 15 as a thermal desorption/desorption chamber 13, and the resistance heater 5 is provided in the thermal desorption/desorption chamber 13. The lower chamber is an ultrasonic adsorption chamber 12, the sprayer 7 is arranged at the bottom of the ultrasonic adsorption chamber 12, and the electric sprayer 7 is connected with a water pipeline. The ultrasonic generator 6 is disposed on the side wall of the ultrasonic adsorption chamber 12. Preferably, the number of the ultrasonic generators 6 is two, and the two ultrasonic generators are symmetrically arranged on the left side wall and the right side wall of the ultrasonic adsorption chamber 12.
In this embodiment, as shown in fig. 1, the upper left chamber is a thermal desorption/desorption chamber 13, and the upper right chamber is an exhaust gas adsorption chamber 11, but this is not a limitation, and in other embodiments, the upper left chamber may be the exhaust gas adsorption chamber 11, and the upper right chamber may be the exhaust gas adsorption chamber 11.
The partition board is provided with a channel 111, and the channel 111 provides installation and rotation spaces for the active carbon blades 4, the rotating disc 2 and the rotating shaft 31. Carousel 2 is located passageway department, and central round hole has been seted up to carousel 2, and carousel 2 installs on pivot 31 through central round hole, and pivot 31 passes through the coupling joint on motor 3's output shaft, and carousel 2 is rotatory by motor 3 drive. Preferably, the motor 3 is installed outside the chamber 1, which can reduce the effect of dust on the life of the motor.
The number of the active carbon blades 4 is a plurality, and the active carbon blades 4 are arranged on the rotary table 2. The shape of the active carbon blade 4 is circular, and a plurality of adsorption holes are uniformly distributed on the active carbon blade 4. The active carbon blade 4 passes through the anchor clamps centre gripping, and the tip welded fastening of anchor clamps is on the circumference wall of carousel 2 to realize that active carbon blade 4 installs on carousel 2. When carousel 2 rotated, it is rotatory at passageway department to drive active carbon blade 4, and the direction of rotation of active carbon blade 4 is from exhaust gas adsorption cavity 11 to ultrasonic wave adsorption cavity 12, again to thermal desorption analysis cavity 13, again to exhaust gas adsorption cavity 11 and circulate in proper order, and the direction of rotation of active carbon blade is the clockwise direction as shown in fig. 1 in this embodiment. In the embodiment shown in fig. 1, the rotation direction of the activated carbon blades 4 is clockwise, i.e., the rotation direction of the output shaft of the motor 3 is clockwise. In other embodiments where the upper left chamber is the exhaust gas adsorption chamber 11 and the upper right chamber is the exhaust gas adsorption chamber 11, the rotation direction of the activated carbon blades 4 is counterclockwise.
In this embodiment, the number of the activated carbon blades 4 is three, three activated carbon blades 4 are located on the same vertical plane, and any two adjacent activated carbon blades 4 form an included angle of 120 degrees with the rotation center of the turntable 2. The motor 3 is a motor rotating at an angle of 120 degrees, and for example, a commercially available brushless motor having a hall angle of 120 degrees may be used. When the activated carbon blades 4 are stationary, the three activated carbon blades 4 are respectively located in the exhaust gas adsorption chamber 11, the ultrasonic adsorption chamber 12 and the thermal desorption chamber 13.
A communicating pipe 16 is arranged between the thermal desorption and analysis chamber 13 and the ultrasonic adsorption chamber 12, the communicating pipe 16 extends towards the ultrasonic adsorption chamber 12, and the communicating pipe 16 is used for discharging residual sewage of the thermal desorption and analysis chamber 13 into the ultrasonic adsorption chamber 12. The bottom of the ultrasonic adsorption cavity 12 is further provided with a drain pipe 17, and the drain pipe 17 can be arranged at one or more positions for discharging the sewage in the ultrasonic adsorption cavity 12. The blow-off pipe 17 can also be connected with a sewage treatment device to treat sewage.
The motor 3, the resistance heater 5, the electric sprayer 7 and the ultrasonic generator 6 are respectively and electrically connected with the PLC electric controller 9. The PLC electrical controller 9 is connected with the upper computer 8 in a communication way.
In the embodiment 1 shown in fig. 3 and 4, the upper computer 8 is provided with a PID index temporary storage module 801, a first rule operation module 802, a motor control signal generation module 803, a second rule operation module 804, an ultrasonic elution control signal generation module 805, a third rule operation module 806, a resistance heating control signal generation module 807, and a PID index input module 808.
In the embodiment 1 shown in fig. 3 and 4, the PID index data of the treated organic waste gas is known, and the PID index input module 808 is used for the user to manually input the known PID index data of the treated organic waste gas. The PID index temporary storage module 801 is used for temporarily storing PID index data of the organic waste gas to be treated.
The first rule operation module 802 is configured to calculate the stationary time of the activated carbon blade 4 according to the following rule: when the PID index is less than 100ppb, the rest time is 1 minute; when the PID index is less than or equal to 100ppb and less than or equal to 1000ppb, the rest time is 5 minutes; when the PID index is more than 1000ppb and less than or equal to 10000ppb, the rest time is 10 minutes. And the motor control signal generating module generates a corresponding motor control signal according to the rest time of the activated carbon blade 4.
The second rule operation module 804 is configured to calculate the ultrasonic frequency and the ultrasonic elution duration according to the following rules: when the PID index is less than 100ppb, the ultrasonic frequency is 20KHz, and the ultrasonic elution lasts for 1 minute; when the PID index is more than or equal to 100ppb and less than or equal to 1000ppb, the ultrasonic frequency is 40KHz, and the ultrasonic elution lasts for 5 minutes; when the PID index is more than 1000ppb and less than or equal to 10000ppb, the ultrasonic frequency is 80KHz, and the ultrasonic elution lasts for 10 minutes. The ultrasonic elution control signal generation module 805 generates a corresponding ultrasonic generator control signal according to the ultrasonic frequency and the ultrasonic elution duration; and generating a corresponding electric sprayer control signal according to the ultrasonic elution duration.
The third rule operation module 806 is configured to calculate the predetermined heating temperature in the cavity according to the following rule: when the PID index is less than 100ppb, the preset heating temperature in the cavity is 150 ℃; when the PID index is more than or equal to 100ppb and less than or equal to 1000ppb, the preset heating temperature in the cavity is 250 ℃; when the PID index is more than 1000ppb and less than or equal to 10000ppb, the preset heating temperature in the cavity is 350 ℃; the resistive heating control signal generation module 807 generates a resistive heater control signal corresponding to a predetermined heating temperature within the chamber.
The PLC electric controller 9 correspondingly controls the motor 3, the resistance heating rod 5, the ultrasonic generator 6 and the electric sprayer 7 to work according to corresponding control signals output by the upper computer.
The device for adsorbing organic waste gas by using circulating activated carbon in example 1 works after being powered on, and the working conditions are as follows: organic waste gas enters a waste gas adsorption chamber 11, and the resistance heating rod 5, the ultrasonic generator 6 and the electric sprayer 7 are controlled according to the PID index of the organic waste gas to treat the waste gas. Organic waste gas adsorbs on active carbon blade 4 in waste gas adsorption cavity 11, according to the PID index control motor's of organic waste gas dwell time, also is the dead time of active carbon blade, and after the time, motor 3 clockwise rotation 120 degrees drives the active carbon blade 4 who has adsorbed organic waste gas and rotates to ultrasonic wave adsorption cavity 12. In the ultrasonic adsorption chamber 12, the electric sprayer 7 sprays water droplets, the water droplets are broken into tiny particles through the ultra-frequency oscillation of the ultrasonic generator 6 to form water mist, and then the organic waste gas is captured, then the motor 3 rotates clockwise for 120 degrees, and the activated carbon blades 4 which have certain water and organic waste gas residues rotate to the thermal desorption chamber 13. In the thermal desorption analysis chamber 13, residual moisture and organic waste gas are removed by high-temperature heating, and the treated clean tail gas is discharged through an exhaust pipeline 15. Thus, the adsorption regeneration process of the organic waste gas treated by the activated carbon is completed.
< example 2>
In embodiment 2 shown in fig. 5 and 6, the difference from the embodiment is that: the upper computer 8 is provided with a PID index temporary storage module 801, a first rule operation module 802, a motor control signal generation module 803, a second rule operation module 804, an ultrasonic elution control signal generation module 805, a third rule operation module 806, and a resistance heating control signal generation module 807. PID index data of the organic waste gas to be treated in the embodiment is to be measured. In this embodiment, the organic waste gas conveying pipeline 14 is further provided with a PID gas detector 10, the gas detector 10 is connected to the upper computer 8, and is configured to upload PID index data of the processed organic waste gas obtained through detection to the upper computer 8, and the PID index temporary storage module 801 is configured to temporarily store the PID index data of the processed organic waste gas.
In this embodiment, the working conditions of the first rule operation module 802, the motor control signal generation module 803, the second rule operation module 804, the ultrasonic elution control signal generation module 805, the third rule operation module 806, the resistance heating control signal generation module 807 and the PLC electric controller 9 are the same as those of embodiment 1, and are not described herein again.
The above-mentioned embodiments are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, and any person skilled in the art should be able to cover the technical scope of the present invention, the technical solutions according to the present invention and the inventive concept with equivalent substitutions or changes.
Claims (10)
1. A device for adsorbing organic waste gas by circulating activated carbon is characterized by comprising: the device comprises a cavity, a motor, a rotary table, an activated carbon blade, a resistance heating rod, an ultrasonic generator, an electric sprayer, a PLC electric controller and an upper computer;
the cavity is divided into an upper cavity and a lower cavity by a partition plate, and the upper cavity is divided into a left upper cavity and a right upper cavity by the partition plate;
one side chamber of the upper chamber is connected with an organic waste gas conveying pipeline to serve as a waste gas adsorption chamber;
the other side chamber of the upper chamber is connected with an exhaust pipeline to serve as a thermal desorption analysis chamber, and the resistance heating rod is arranged in the thermal desorption analysis chamber;
the lower cavity is an ultrasonic wave adsorption cavity, the electric sprayer is arranged at the bottom of the ultrasonic wave adsorption cavity, and the ultrasonic generator is arranged on the side wall of the ultrasonic wave adsorption cavity;
the partition plate is provided with a channel, the turntable is positioned at the channel, and the turntable is driven by the motor to rotate;
the number of the active carbon blades is a plurality, the active carbon blades are installed on the rotary table, the rotary table drives the active carbon blades to rotate at the channel, and the rotating direction of the active carbon blades is that the active carbon blades sequentially circulate from the waste gas adsorption chamber to the ultrasonic adsorption chamber, then to the thermal desorption and desorption chamber, and then to the waste gas adsorption chamber;
the motor, the resistance heating rod, the electric sprayer and the ultrasonic generator are respectively and electrically connected with the PLC;
the PLC is in communication connection with the upper computer and controls the motor, the resistance heating rod, the ultrasonic generator and the electric sprayer to work according to control signals generated by the upper computer.
2. The device for adsorbing organic waste gas by using the circulating activated carbon as claimed in claim 1, wherein:
the number of the active carbon blades is three, the three active carbon blades are positioned on the same vertical plane, and any two adjacent active carbon blades form an included angle of 120 degrees with the rotation center of the turntable;
the motor rotates at an angle of 120 degrees;
when the active carbon blades are static, the three active carbon blades are respectively positioned in the waste gas adsorption cavity, the ultrasonic adsorption cavity and the thermal desorption and desorption cavity.
3. The device for adsorbing organic waste gas by using the circulating activated carbon according to claim 1 or 2, wherein:
wherein, the host computer is provided with: the device comprises a PID index temporary storage module, a first rule operation module and a motor control signal generation module;
the PID index temporary storage module is used for temporarily storing PID index data of the organic waste gas to be treated;
the first rule operation module is used for calculating the rest time of the active carbon blade according to the following rule:
when the PID index is less than 100ppb, the rest time is 1 minute;
when the PID index is less than or equal to 100ppb and less than or equal to 1000ppb, the rest time is 5 minutes;
when the PID index is more than 1000ppb and less than or equal to 10000ppb, the rest time is 10 minutes;
and the motor control signal generation module generates a corresponding motor control signal according to the static time of the activated carbon blade.
4. The device for adsorbing organic waste gas by using the circulating activated carbon as claimed in claim 1, wherein:
wherein, the host computer still is provided with: the PID index temporary storage module, the second rule operation module and the ultrasonic elution control signal generation module;
the PID index temporary storage module is used for temporarily storing PID index data of the organic waste gas to be treated;
the second rule operation module is used for calculating the ultrasonic frequency and the ultrasonic elution duration time according to the following rules:
when the PID index is less than 100ppb, the ultrasonic frequency is 20KHz, and the ultrasonic elution lasts for 1 minute;
when the PID index is more than or equal to 100ppb and less than or equal to 1000ppb, the ultrasonic frequency is 40KHz, and the ultrasonic elution lasts for 5 minutes;
when the PID index is more than 1000ppb and less than or equal to 10000ppb, the ultrasonic frequency is 80KHz, and the ultrasonic elution lasts for 10 minutes;
the ultrasonic elution control signal generation module generates a corresponding ultrasonic generator control signal according to the ultrasonic frequency and the ultrasonic elution duration time, and generates a corresponding electric sprayer control signal according to the ultrasonic elution duration time.
5. The device for adsorbing organic waste gas by using the circulating activated carbon as claimed in claim 1, wherein:
wherein, the host computer still is provided with: the PID index temporary storage module, the third rule operation module and the resistance heating control signal generation module;
the PID index temporary storage module is used for temporarily storing PID index data of the organic waste gas to be treated;
the third rule operation module is used for calculating the preset heating temperature in the cavity according to the following rule:
when the PID index is less than 100ppb, the preset heating temperature in the cavity is 150 ℃;
when the PID index is more than or equal to 100ppb and less than or equal to 1000ppb, the preset heating temperature in the cavity is 250 ℃;
when the PID index is more than 1000ppb and less than or equal to 10000ppb, the preset heating temperature in the cavity is 350 ℃;
and the resistance heating control signal generation module generates a resistance heater control signal corresponding to the preset heating temperature in the cavity.
6. A device for adsorbing organic waste gas by using circulating activated carbon according to any one of claims 3 to 5, wherein:
and the PID gas detector is connected with the upper computer and is used for uploading the PID index data of the processed organic waste gas obtained by detection to the upper computer.
7. The device for adsorbing organic waste gas by using the circulating activated carbon according to claim 3, wherein:
the upper computer is provided with a PID index input module, and the PID index input module is used for manually inputting known PID index data of the organic waste gas to be treated by a user.
8. The device for adsorbing organic waste gas by using the circulating activated carbon as claimed in claim 1, wherein:
wherein, a plurality of absorption holes are uniformly distributed on the active carbon blade.
9. The device for adsorbing organic waste gas by using the circulating activated carbon as claimed in claim 1, wherein:
wherein, thermal desorption analysis chamber with be provided with communicating pipe between the ultrasonic wave absorption chamber, communicating pipe to the ultrasonic wave absorption chamber extends.
10. The device for adsorbing organic waste gas by using the circulating activated carbon according to claim 7, wherein:
wherein, the bottom of the ultrasonic adsorption cavity is also provided with a sewage discharge pipe.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115400543A (en) * | 2022-09-29 | 2022-11-29 | 广州福麟环保科技有限公司 | VOCs exhaust treatment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115400543A (en) * | 2022-09-29 | 2022-11-29 | 广州福麟环保科技有限公司 | VOCs exhaust treatment device |
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