CN114950122A - VOCs organic waste gas treatment tower based on data analysis - Google Patents
VOCs organic waste gas treatment tower based on data analysis Download PDFInfo
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- CN114950122A CN114950122A CN202210902864.7A CN202210902864A CN114950122A CN 114950122 A CN114950122 A CN 114950122A CN 202210902864 A CN202210902864 A CN 202210902864A CN 114950122 A CN114950122 A CN 114950122A
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- 238000007405 data analysis Methods 0.000 title claims abstract description 18
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—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
- B01D53/32—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 electrical effects other than those provided for in group B01D61/00
- B01D53/323—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 electrical effects other than those provided for in group B01D61/00 by electrostatic effects or by high-voltage electric fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a VOCs organic waste gas treatment tower based on data analysis, which relates to the technical field of waste gas treatment and comprises a tower body, wherein an airflow groove is formed in the inner wall of the tower body, the airflow groove is spiral, a discharge tank is arranged on the side surface of the tower body, a fan is arranged on the top surface of the discharge tank, a discharge pipe is arranged at the interface of the top surface of the tower body, a secondary treatment pipe is arranged at the interface of the surface of the discharge pipe, a spray cavity, a biological treatment cavity and a plasma treatment cavity are respectively arranged in the tower body, a filter disc is arranged in the spray cavity, a distributor is arranged on the top surface of the filter disc, a placing disc is arranged in the biological treatment cavity, culture fillers are accumulated on the top surface of the placing disc, an air outlet funnel is arranged in the plasma treatment cavity, plasma electrolytic heads are respectively arranged on two sides of the tail end of the air outlet funnel, and various methods are combined with the tower body to reduce the floor area of equipment, the cost is low, and the operation of workers is convenient, and the waste gas can be effectively treated through data analysis, so that the condition of faulty discharge of unqualified waste gas is prevented.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to a VOCs organic waste gas treatment tower based on data analysis.
Background
The photocatalytic demisting type water washing tower comprises a tower body, an ultraviolet lamp mechanism, a spraying mechanism and a returning demisting mechanism, wherein the ultraviolet lamp mechanism comprises a plurality of groups of ultraviolet lamp sets arranged in a hierarchical manner; the turn-back demisting mechanism can realize graded treatment of aerosol particles and water mist with different particle sizes through the uniquely designed flow baffle and demisting unit, thereby realizing efficient demisting.
Patent application number is CN201510680911.8, a VOCs exhaust-gas treatment equipment belongs to chemical waste gas technical field. This VOCs exhaust-gas treatment equipment includes: the device comprises a washing tower, a drying filter box, a gas processor and an induced air system, wherein the gas processor comprises a UV photocatalysis processor and a plasma processor. The VOCs waste gas treatment equipment has higher treatment efficiency, higher safety and more thorough waste gas treatment. In addition, utilize this equipment to handle VOCs waste gas, can reduce the energy consumption greatly, because simple structure, it is convenient to maintain, greatly reduced use cost.
The above patents have introduced the treatment of VOCs waste gas separately, and the above patents and the existing technologies for treating VOCs waste gas all have the following problems:
1. VOCs treatment equipment is complex, occupies a large area, is inconvenient for personnel to operate and has a common effect of treating the organic waste gas of VOCs;
2. the waste gas treatment structure cannot be regulated and controlled according to data analysis, so that VOCs waste gas with different flow and concentration cannot be effectively treated, and the gas cannot reach the discharge standard;
3. equipment cost is higher when VOCs waste gas is treated to the processing method is too single, thereby can't effectual processing to VOCs makes the waste gas reach the standard of emission.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the VOCs organic waste gas treatment tower based on data analysis, which can effectively treat VOCs organic waste gas, treat the waste gas by using a biological treatment method and a plasma treatment method, combine the two methods with a tower body to reduce the floor area of equipment, combine the two treatment methods in the same tower body, have low cost and facilitate the operation of workers, and can effectively treat the waste gas through data analysis so as to prevent the wrong discharge of unqualified waste gas.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the VOCs organic waste gas treatment tower based on data analysis comprises a tower body, wherein an airflow groove is formed in the inner wall of the tower body and is spiral, a discharge tank is arranged on the side face of the tower body, a fan is installed on the top face of the discharge tank, a discharge pipe is arranged at the interface of the top face of the tower body, a secondary treatment pipe is installed at the interface of the surface of the discharge pipe, a spray cavity, a biological treatment cavity and a plasma treatment cavity are respectively arranged inside the tower body, a filter disc is arranged inside the spray cavity, a distributor is installed on the top face of the filter disc and is matched with the inner wall of the tower body, a rotary joint is connected to the top face of the distributor, spray pipes are arrayed on the circumference of the surface of the rotary joint, a transfer pipe is arranged between the spray cavity and the biological treatment cavity, and the transfer pipe is U-shaped;
a placing disc is arranged in the biological treatment cavity, culture filler is accumulated on the top surface of the placing disc, a nutrient injection disc is arranged on the top surface of the culture filler, a connecting frame is welded on the surface of the nutrient injection disc, and a through pipe is connected with the through hole in the top surface of the connecting frame in a threaded manner;
the inside funnel of giving vent to anger that is equipped with of plasma treatment chamber, the plasma electrolysis head is installed respectively to the terminal both sides of the funnel of giving vent to anger, the surperficial bolted connection of the funnel of giving vent to anger has the support, and the support is L shape, and the top surface block of plasma electrolysis head and support.
Preferably, the one end of delivery pipe cup joints with the air inlet end of fan, and the fan exit end is connected with the link that discharges the jar, and the secondary treatment pipe gomphosis in spraying intracavity portion, the tower body surface is equipped with safe delivery pipe, and the one end of safe delivery pipe is located the biological treatment intracavity, and the other end and the delivery union coupling of safe delivery pipe.
Preferably, the kneck that sprays the intracavity portion installs intake pipe and drain pipe respectively, the filter disc is located the bottom surface of distributor, and the circumference array has the through-hole on filter disc and the distributor, rotary joint's the end of intaking is equipped with the feed liquor pipe, and the bottom surface array of shower has seted up and has sprayed the mouth.
Preferably, connect the frame and place the dish and laminate with the inner wall of tower body respectively, the nutrient is poured into the end gomphosis of raising in the through-hole on tower body surface of dish, and the nutrient is poured into the end of raising and tower body surface flange joint of dish, biological treatment intracavity portion is equipped with the waste gas monitor, and the one end of waste gas monitor and the connector of tower body surface department threaded connection.
Preferably, the funnel of giving vent to anger is the infundibulate, and gives vent to anger the head end of funnel and the inner wall laminating of tower body, and the electrolysis end of plasma electrolysis head mutually supports with the groove of the funnel bottom surface of giving vent to anger.
The working principle is as follows: the interior of the tower body is divided into three regions, namely a spraying cavity, a biological treatment cavity and a plasma treatment cavity, waste gas enters the spraying cavity from an air inlet pipe below the tower body, the waste gas is pumped out from the lower part to the upper part of the tower body under the suction force of a fan, liquid for spraying is pumped into the spraying pipe by a liquid inlet pipe while the waste gas enters the spraying cavity, the spraying pipe can be driven by a rotary joint to rotate on the top surface of a distributor after the rotary joint is electrified, one end of the liquid inlet pipe is sleeved in a connecting end of the rotary joint, so that the rotary joint is not influenced by the liquid inlet pipe when rotating, spraying liquid is sprayed out from an outlet formed in the lower surface of the spraying pipe, the waste gas is sprayed, the waste gas sequentially passes through a filter disc and the distributor, impurities in the waste gas can be filtered by the filter disc, and the spraying effect can be improved by uniform distribution of the waste gas by the distributor, the sprayed liquid falls into the lowest part of the tower body from the through holes on the distributor and the filter disc, workers can recycle the liquid through the liquid outlet pipe, the electromagnetic valve on the transfer pipe between the spraying cavity and the biological treatment cavity is opened, the gas is sent into the biological treatment cavity, the culture filler is uniformly accumulated on the placing disc in the biological treatment cavity, the microorganism is cultured on the culture filler, the odor and other harmful components in the waste gas are absorbed by the microorganism, thereby performing biological treatment on the waste gas, the nutrient solution required by the microorganism can be extracted by the water pump, the nutrient solution is sent into the nutrient injection disc through the connecting pipeline on the nutrient injection disc, the nutrient solution is sprayed onto the culture filler through the spray head on the bottom surface to provide nutrients for the microorganism, and the gas in the biological treatment cavity is detected through the waste gas monitor after treatment, the staff can look over the structure that detects thereby judge whether waste gas directly reaches the standard of emission, if reach the emission standard open the solenoid valve on the safe discharge pipe with the gas up to standard directly send into the emission jar and prepare to discharge, if waste gas does not reach direct emission standard open the solenoid valve on the through-tube and make waste gas pass through the waste gas pipe and enter into the plasma treatment chamber, under the work of fan, waste gas gets into from the end in the funnel of giving vent to anger in proper order, because the opening of the end in the funnel of giving vent to anger is less, the terminal interface block of plasma electrolysis head and funnel of giving vent to anger, waste gas passes through between two plasma electrolysis heads when passing through the funnel of giving vent to anger, thereby utilize the mode of plasma treatment to carry out the electrolysis to waste gas, make the composition in the waste gas decompose and thereby reach the emission standard, and with the gas suction after handling to the emission jar and wait to discharge, if gas needs secondary treatment can open the valve of secondary treatment pipe and get into gas inside spray chamber again .
(III) advantageous effects
The invention provides a VOCs organic waste gas treatment tower based on data analysis. The method has the following beneficial effects:
1. the VOCs treatment tower is internally divided into a spraying cavity, a biological treatment cavity and a plasma treatment cavity, VOCs waste gas enters from the spraying cavity below the tower body and sequentially passes through the biological treatment cavity and the plasma treatment cavity to treat VOCs organic waste gas, the conventional VOCs organic waste gas treatment mode is changed, multiple treatment modes are combined with the shape of the tower to form a high-efficiency treatment device, the structure is simple, the operation of workers is convenient, and the occupied area of equipment is small.
2. The invention adopts the biological treatment method and the plasma treatment method to treat the VOCs waste gas, combines the two methods, can detect and analyze the VOCs gas treated by the biological method when treating the VOCs waste gas, and then adjusts the current density of the plasma treatment method, so that the gas can accurately and effectively treat the waste gas after passing through the plasma treatment cavity, the treated gas can reach the discharge standard, the recording and analysis of the data of the gas when treating the VOCs waste gas are realized, thereby accurately and effectively controlling the plasma treatment structure, improving the treatment effect of the VOCs and facilitating the operation of personnel.
3. The biological method is adopted to treat the VOCs waste gas, the biological method is low in cost and can be recycled, the organic waste gas of the VOCs can be pretreated by utilizing a biodegradation mode, personnel can conveniently observe the condition of the VOCs waste gas during the biological method treatment and determine whether to carry out plasma treatment, the equipment has flexible treatment mode of the VOCs organic waste gas, can be adjusted and changed according to the condition, saves resources and can effectively treat the VOCs organic waste gas.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a perspective view of the present invention;
FIG. 4 is a front view of the present invention;
fig. 5 is a schematic overall view of the interior of the tower of the present invention;
fig. 6 is a perspective view of the interior of the tower of the present invention;
FIG. 7 is a schematic gas flow diagram of the present invention.
Wherein, 1, a tower body; 2. an air flow groove; 3. a discharge pipe; 4. a secondary treatment pipe; 5. a discharge tank; 6. a fan; 7. a spray chamber; 701. an air inlet pipe; 702. a liquid outlet pipe; 703. a filter tray; 704. a distributor; 705. a rotary joint; 706. a shower pipe; 707. a liquid inlet pipe; 708. a transfer tube; 8. a biological treatment chamber; 801. placing a tray; 802. culturing the filler; 803. an exhaust gas monitor; 804. a safety vent; 805. a nutrient injection tray; 806. connecting the frame; 807. through the tube; 9. a plasma processing chamber; 901. an air outlet funnel; 902. a plasma electrolysis head; 903. and (4) a bracket.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
The first embodiment is as follows:
as shown in fig. 1-6, a data analysis-based VOCs organic waste gas treatment tower comprises a tower body 1, an air flow groove 2 is formed in the inner wall of the tower body 1, the air flow groove 2 is spiral, a discharge tank 5 is arranged on the side surface of the tower body 1, a fan 6 is arranged on the top surface of the discharge tank 5, a discharge pipe 3 is arranged at the interface of the top surface of the tower body 1, a secondary treatment pipe 4 is arranged at the interface of the surface of the discharge pipe 3, one end of the discharge pipe 3 is sleeved with the air inlet end of the fan 6, the outlet end of the fan 6 is connected with the connecting end of the discharge tank 5, the secondary treatment pipe 4 is embedded inside a spray chamber 7, a safety discharge pipe 804 is arranged on the surface of the tower body 1, one end of the safety discharge pipe 804 is positioned in a biological treatment chamber 8, the other end of the safety discharge pipe 804 is connected with the discharge pipe 3, a spray chamber 7, a biological treatment chamber 8 and a plasma treatment chamber 9 are respectively arranged inside the tower body 1, a filter disc 703 is arranged inside the spray chamber 7, the top surface of the filter disc 703 is provided with a distributor 704, the filter disc 703 and the distributor 704 are matched with the inner wall of the tower body 1, the interface of the inner part of the spraying cavity 7 is respectively provided with an air inlet pipe 701 and a liquid outlet pipe 702, the filter disc 703 is positioned on the bottom surface of the distributor 704, through holes are arranged on the filter disc 703 and the distributor 704 in a circumferential array manner, waste gas passes through the filter disc 703 and the distributor 704 in sequence, impurities in the waste gas can be filtered by using the filter disc 703, the waste gas can be uniformly distributed by the distributor 704 to improve the spraying effect, sprayed liquid falls into the lowest part of the tower body 1 from the through holes on the distributor 704 and the filter disc 703, a worker can recycle the waste gas by the liquid outlet pipe 702, the top surface of the distributor 704 is connected with a rotary joint 705, the spraying pipe 706 is arranged on the circumferential array of the surface of the rotary joint 705, a transfer pipe 708 is arranged between the spraying cavity 7 and the biological treatment cavity 8, the transfer pipe 708 is U-shaped, the water inlet end of the rotary joint 705 is provided with a liquid inlet pipe 707, the bottom surface of the spray pipe 706 is provided with spray openings in an array manner, the interior of the tower body 1 is divided into three regions, namely a spray chamber 7, a biological treatment chamber 8 and a plasma treatment chamber 9, waste gas enters the spray chamber 7 from a gas inlet pipe 701 below the tower body 1, the waste gas is pumped out from the lower part to the upper part of the tower body 1 under the suction force of a fan 6, the liquid for spraying is pumped into the spray pipe 706 by a water pump through the liquid inlet pipe 707 while the waste gas enters the spray chamber 7, the rotary joint 705 is electrified to drive the spray pipe 706 to rotate on the top surface of the distributor 704, one end of the liquid inlet pipe 707 is sleeved in the connecting end of the rotary joint 705, so that the rotary joint is not influenced by the liquid inlet pipe 707, the spray liquid is sprayed out from an outlet formed in the lower surface of the spray pipe 706, thereby spraying the waste gas, and the inner wall of the tower body 1 is provided with an airflow groove 2, and the air current groove 2 is spiral, and after the gas gets into tower body 1 inside, gas is taken out from bottom to top, and gas forms the spiral along the flow of air current groove 2 in tower body 1, can accelerate the speed that gas rises, can make gaseous even distribution in the different treatment chambers of gas admission simultaneously.
A placing disc 801 is arranged in the biological treatment cavity 8, culture filler 802 is stacked on the top surface of the placing disc 801, a nutrient injection disc 805 is arranged on the top surface of the culture filler 802, a connecting frame 806 is welded on the surface of the nutrient injection disc 805, a through pipe 807 is connected in a through hole on the top surface of the connecting frame 806 in a threaded manner, an electromagnetic valve on a transfer pipe 708 between the spraying cavity 7 and the biological treatment cavity 8 is opened, gas is sent into the biological treatment cavity 8, the culture filler 802 is uniformly stacked on the placing disc 801 in the biological treatment cavity 8, microorganisms are cultured on the culture filler 802, the microorganisms are used for absorbing odor and other harmful components in the waste gas, so that the waste gas is biologically treated and converted into organic matters such as water, carbon dioxide and the like, the microorganisms are attached to the culture filler 802, the pressurized and prewetted waste gas enters the biological treatment cavity 8 from the spraying cavity 7 and is contacted with the microorganisms on the surface of the culture filler 802 for treating the waste gas, the culture filler 802 comprises peat, coal, soil, compost or sandy soil and the like, the uniformity of the culture filler 802 is good, the surface area is large, certain humidity can be kept, the porosity is large, good adsorption capacity on pollutants and nutrient substances is achieved, the connecting frame 806 and the placing disc 801 are respectively attached to the inner wall of the tower body 1, the nutrient inlet end of the nutrient injection disc 805 is embedded in a through hole in the surface of the tower body 1, the nutrient inlet end of the nutrient injection disc 805 is connected with a flange on the surface of the tower body 1, nutrient solution required by microorganisms can be extracted by a water pump, the nutrient solution is fed into the nutrient injection disc 805 through a connecting pipeline on the nutrient injection disc 805, the nutrient solution is sprayed onto the culture filler 802 through a nozzle on the bottom surface to provide nutrients for the microorganisms, and the nutrient energy required for the growth of the microorganisms needs to be provided for the microorganisms to be injected into the culture filler 802 regularly to ensure that the microorganisms can be cultured normally, make the microorganism can be effectual to organic waste gas handles, biological treatment chamber 8 is inside to be equipped with waste gas monitor 803, the one end of waste gas monitor 803 and the connector on tower body 1 surface are threaded connection, wait to handle the back and detect the inside gas of microbial treatment chamber 8 through waste gas monitor 803, thereby the staff can look over the structure that detects and judge whether waste gas directly reaches the standard of emission, if reach the emission standard open the solenoid valve on safe discharge pipe 804 with up to standard gas directly send into to discharge tank 5 and prepare to discharge, if waste gas does not reach direct emission standard open the solenoid valve on the pipe 807 make waste gas pass through the waste gas pipe and enter into plasma treatment chamber 9.
The inside of the plasma processing cavity 9 is provided with an air outlet funnel 901, two sides of the tail end of the air outlet funnel 901 are respectively provided with a plasma electrolytic head 902, the air outlet funnel 901 is funnel-shaped, the head end of the air outlet funnel 901 is attached to the inner wall of the tower body 1, the electrolysis end of the plasma electrolytic head 902 is matched with the groove on the bottom surface of the air outlet funnel 901, the surface of the air outlet funnel 901 is connected with a support 903 by bolts, the support 903 is L-shaped, the plasma electrolytic head 902 is clamped with the top surface of the support 903, under the work of the fan 6, waste gas enters from the tail end of the air outlet funnel 901 in sequence, because the opening of the tail end of the air outlet funnel 901 is smaller, the plasma electrolytic head 902 is clamped with the tail end interface of the air outlet funnel 901, the waste gas passes through the two plasma electrolytic heads 902 when passing through the air outlet funnel 901, the waste gas is electrolyzed by using a plasma processing mode, so that the components in the waste gas are decomposed to reach the emission standard, the plasma electrolysis head 902 is used for discharging at the tail end of the air outlet funnel 901 by using a low-temperature plasma method to produce a large amount of high-energy electrons which are inelastically collided with molecules and atoms in the air to excite, ionize and free-radically react the molecules to produce a series of active groups, and the active ions collide with pollutant gas molecules to break chemical bonds of the pollutant molecules to produce CO 2 、H 2 O and micromolecular organic matters, a power supply used by low-temperature plasma is input by a three-phase power supply, is output as high-voltage alternating current after being coupled by a rectifying transformer, a filtering inverter and a coupling transformer, a current sensor and a voltage sensor are additionally arranged at the output end, a detection value can be fed back to a controller to realize the control of current and voltage, and if gas needs secondary treatment, a valve of a secondary treatment pipe 4 can be opened to enable the gas to enter the spraying cavity 7 again.
The state energy of the plasma can not be directly detected, so that the indirect representation is the value of complete degradation of the VOCs treated by the biological method in the low-temperature plasma state, and the value of current density is only required to be accurately calculated and controlled when the VOCs treated by the biological method reaches the emission standard.
The values of (a) are related to various parameters of the biologically treated VOCs, and the formula for the calculation, considering only the flow and concentration of the biologically treated VOCs, is:
𝐽= 
(
，𝐴，
，
)
wherein,
is the flow rate of VOCs treated by a biological method,
is the concentration of VOCs after biological treatment,
and,
can be detected by a sensor.
The plate current is determined by the voltage applied between the 2 plates and the equivalent resistance between the 2 plates, from which the formula is derived:
𝐴=𝑈/𝑅
resistance of VOCs entering into plasma processing box𝑅And the flow rate of VOCs treated by the biological method,
and the concentration of the water-soluble polymer,
on this, the following formula is thus obtained:
𝑅=
（
）
the relationship between current density and electrode voltage can be obtained from the above formula:
𝐽=
（
，𝑈，
，
）
therefore, the current density of the low-temperature plasma is controlled only by controlling the electrode voltage, the total voltage of the low-temperature plasma is obtained through calculation according to the flow rate, concentration and the like of parameters of the VOCs entering the plasma treatment cavity 9, meanwhile, the voltage of the low-temperature plasma is generated according to the total voltage distribution ratio, each power controller adjusts each high-voltage power supply according to the given voltage, and the voltage of each low-temperature plasma is stabilized, so that the VOCs organic waste gas treated by the biological treatment method is subjected to plasma treatment, data analysis is performed according to the flow rate and concentration of the VOCs treated by the biological method, the current density of the low-temperature plasma can be accurately controlled, the VOCs gas can reach the emission standard after entering the plasma cavity, and the VOCs treatment effect can be improved beneficially through data-based analysis.
Example two:
as shown in fig. 7, the process flow of the VOCs organic waste gas treatment tower based on data analysis includes the following steps:
sp 1: spraying waste gas, wherein the waste gas enters the spraying cavity 7 from the gas inlet pipe 701, is sequentially filtered and distributed, and is uniformly sprayed;
sp 2: the first treatment, the valve on the transfer pipe 708 is opened, the sprayed waste gas enters the next procedure through the transfer pipe 708, the first treatment adopts the biological treatment method to carry out the waste gas treatment, and the required microorganism is planted to treat the components in the waste gas;
sp 3: detecting waste gas, namely monitoring the treated waste gas in primary treatment, opening a valve of a safety discharge pipe 804, feeding the waste gas reaching the standard into a discharge pipe 3 through the safety discharge pipe 804, sending the waste gas into a discharge tank for discharge, and entering the next process after the waste gas does not reach the standard;
sp 4: secondary treatment, wherein the secondary treatment is to carry out secondary treatment on the gas after the primary treatment by a low-temperature plasma method, open a valve on the pipe 807 for the gas after the primary treatment and wait for the secondary treatment;
sp 5: performing circulating treatment, wherein the gas after the secondary treatment is recovered to a recovery tank for emission detection, and if the gas does not reach the emission standard, a valve of the secondary treatment pipe 4 is opened to enable the gas in the emission pipe 3 to flow back into the secondary treatment pipe 4 and be sent into the spraying cavity 7 for treatment in sequence;
sp 6: and (4) recycling and discharging, wherein the gas after secondary treatment and circular treatment enters a recycling tank to wait for discharge after reaching the discharge standard.
Example three:
different microorganisms are needed to be adopted according to the oxidation process of different malodorous substances when VOCs organic waste gas is biologically treated, so that different strains can be selected for planting according to different components in the waste gas, for example: when sulfur-containing compounds such as H2S, methyl mercaptan, methyl sulfide and the like are treated, H and S are oxidized into sulfate radicals under certain conditions due to planting thiobacillus ferrooxidans, thiobacillus thiooxidans, photosynthetic sulfur bacteria and the like, when ammonia (NH3) is treated, the ammonia is dissolved in water and then is converted into nitrate through nitrification of ammonia oxidizing bacteria such as nitrosomonas, nitrosococcus, nitrosospirillum and the like and nitrifying bacteria such as nitrobacter, nitrococcus, nitrosaccule and the like under aerobic conditions, and the nitrate is reduced into nitrogen by denitrifying bacteria such as denitrifying bacteria under alkaline anaerobic conditions.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. However, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. VOCs organic waste gas treatment tower based on data analysis, including tower body (1), its characterized in that: the inner wall of the tower body (1) is provided with an airflow groove (2), the airflow groove (2) is spiral, the side face of the tower body (1) is provided with a discharge tank (5), the top surface of the discharge tank (5) is provided with a fan (6), a discharge pipe (3) is arranged at a top surface interface of the tower body (1), a secondary treatment pipe (4) is arranged at an interface of the surface of the discharge pipe (3), a spray cavity (7), a biological treatment cavity (8) and a plasma treatment cavity (9) are respectively arranged in the tower body (1), a filter disc (703) is arranged in the spray cavity (7), a distributor (704) is arranged on the top surface of the filter disc (703), the filter disc (703) and the distributor (704) are matched with the inner wall of the tower body (1), the top surface of the distributor (704) is connected with a rotary joint (705), and spray pipes (706) are arrayed on the circumference of the surface of the rotary joint (705), a transfer pipe (708) is arranged between the spraying cavity (7) and the biological treatment cavity (8), and the transfer pipe (708) is U-shaped;
a placing disc (801) is arranged in the biological treatment cavity (8), culture fillers (802) are stacked on the top surface of the placing disc (801), nutrient injection discs (805) are arranged on the top surfaces of the culture fillers (802), a connecting frame (806) is welded on the surface of each nutrient injection disc (805), and a through pipe (807) is connected to a through hole in the top surface of each connecting frame (806) in a threaded manner;
the plasma treatment cavity (9) is internally provided with an air outlet funnel (901), plasma electrolytic heads (902) are respectively installed on two sides of the tail end of the air outlet funnel (901), a support (903) is connected to the surface of the air outlet funnel (901) through bolts, the support (903) is L-shaped, and the plasma electrolytic heads (902) are clamped with the top surface of the support (903).
2. The data analysis-based VOCs organic waste gas treatment tower of claim 1, wherein: one end of the discharge pipe (3) is sleeved with an air inlet end of the fan (6), an outlet end of the fan (6) is connected with a connecting end of the discharge tank (5), the secondary treatment pipe (4) is embedded in the spraying cavity (7), the surface of the tower body (1) is provided with the safety discharge pipe (804), one end of the safety discharge pipe (804) is located in the biological treatment cavity (8), and the other end of the safety discharge pipe (804) is connected with the discharge pipe (3).
3. The data analysis-based VOCs organic waste gas treatment tower of claim 1, wherein: an air inlet pipe (701) and a liquid outlet pipe (702) are respectively installed at the interface inside the spraying cavity (7), the filter disc (703) is located on the bottom surface of the distributor (704), through holes are formed in the circumferential arrays on the filter disc (703) and the distributor (704), a liquid inlet pipe (707) is arranged at the water inlet end of the rotary joint (705), and a spraying opening is formed in the bottom surface array of the spraying pipe (706).
4. The data analysis-based VOCs organic waste gas treatment tower of claim 1, wherein: connect frame (806) and place dish (801) and laminate with the inner wall of tower body (1) respectively, the end gomphosis is supported in the through-hole on tower body (1) surface to the advancing of nutrient injection dish (805), and the end of supporting and tower body (1) surface flange joint are supported in advancing of nutrient injection dish (805), biological treatment chamber (8) inside is equipped with waste gas monitor (803), and the one end of waste gas monitor (803) and the connector lug department threaded connection on tower body (1) surface.
5. The data analysis-based VOCs organic waste gas treatment tower of claim 1, wherein: the gas outlet funnel (901) is funnel-shaped, the head end of the gas outlet funnel (901) is attached to the inner wall of the tower body (1), and the electrolysis end of the plasma electrolysis head (902) is matched with the groove on the bottom surface of the gas outlet funnel (901).
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