CN111617634A - Exhaust treatment device based on nano titanium dioxide photocatalysis - Google Patents

Exhaust treatment device based on nano titanium dioxide photocatalysis Download PDF

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Publication number
CN111617634A
CN111617634A CN202010660966.3A CN202010660966A CN111617634A CN 111617634 A CN111617634 A CN 111617634A CN 202010660966 A CN202010660966 A CN 202010660966A CN 111617634 A CN111617634 A CN 111617634A
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tower body
water
waste gas
titanium dioxide
way pipe
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曲静
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • B01D53/8668Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation 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
    • B01D53/26Drying gases or vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/80Type of catalytic reaction
    • B01D2255/802Photocatalytic

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
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Abstract

The invention relates to the field of waste gas treatment, in particular to a waste gas treatment device based on nanometer titanium dioxide photocatalysis, which comprises a tower body, wherein water tanks which are bilaterally symmetrical are separated in the bottom of the tower body through baffles, stirring mechanisms are arranged in the upper parts of the water tanks, the bottoms of the water tanks are connected with gas hoods through gas guide pipes, a plurality of groups of gas holes are uniformly formed in the bottoms of the gas hoods, a gas inlet mechanism and a water inlet mechanism are sequentially arranged on the front side of the bottom of the tower body from top to bottom, a water pumping mechanism is arranged on the rear side of the bottom of the tower body, a partition plate is arranged in the middle of the tower body, a conical; the invention not only removes the moisture in the waste gas through the silica gel drying agent, and reduces the reaction contact of the subsequent waste gas and the nano titanium dioxide photocatalyst to a certain extent, thereby improving the degradation efficiency and the effect of the waste gas, but also prolongs the contact time of the waste gas and the nano titanium dioxide photocatalyst through arranging the spiral glass tube, and further improves the decomposition effect of the waste gas.

Description

Exhaust treatment device based on nano titanium dioxide photocatalysis
Technical Field
The invention relates to the field of waste gas treatment, in particular to a waste gas treatment device based on nano titanium dioxide photocatalysis.
Background
In the process of paint production, a large amount of volatile VOC organic waste gas can be produced, the volatile VOC organic waste gas has influence and harm on various aspects of human health, and the human body function can be greatly damaged when the paint is contacted with volatile organic compounds for a long time or is in an environment with high content of the volatile organic compounds. At present, the UV high-efficiency photolysis oxidation technology is mainly adopted for purifying VOC waste gas, and the technology adopts UV ultraviolet light and nano TiO2The (titanium dioxide) catalytic module is combined to generate ozone and high-energy particle-OH (hydroxyl radical) to enterHarmful gases in the special photocatalytic cavity generate physical-chemical reaction with 'hole-electron' pairs generated by photocatalysis, hydroxyl radicals and the like, and various harmful gases which are not completely degraded after low-temperature plasma action are oxidized and decomposed. In the catalytic link, under the catalytic action of ultraviolet light with specific wavelength and a catalytic array catalyst, the degradation-resistant pollutant molecules are accelerated to decompose, and meanwhile, strong oxidants such as superoxide anion free radicals and the like are generated, so that the purification efficiency is greatly improved.
At present, chinese patent No. 201420528922.5 discloses an organic waste gas treatment system, which comprises a filter, an absorption tower, a photocatalytic device, an induced draft fan and a chimney, wherein the filter, the absorption tower, the photocatalytic device, the induced draft fan and the chimney are sequentially connected with the organic waste gas through a pipeline, an air supplement valve is arranged on the pipeline between the filter and the absorption tower, the photocatalytic device comprises an ultraviolet lamp tube and a filter screen catalyst arranged around the ultraviolet lamp tube, and the filter screen catalyst adopts active carbon fibers with nano titanium dioxide photocatalyst; the system sequentially filters, absorbs, reacts and discharges the organic waste gas, has a reasonable structure, saves materials and improves the purification effect.
But the following defects and shortcomings exist in the implementation process:
after the waste gas passes through the absorption tower, although the dust in the waste gas can be removed, the waste gas passing through the absorption tower also contains a large amount of moisture, when the waste gas containing a large amount of moisture is contacted with the activated carbon fibers of the nano titanium dioxide photocatalyst, the waste gas is decomposed into carbon dioxide and water, the moisture in the waste gas is further improved, the subsequent reaction contact of the waste gas and the nano titanium dioxide photocatalyst is further hindered, and the degradation efficiency and the degradation effect of the waste gas are reduced.
Disclosure of Invention
Solves the technical problem
Aiming at the defects in the prior art, the invention provides a waste gas treatment device based on nano titanium dioxide photocatalysis, which can effectively solve the problems that when waste gas containing a large amount of moisture in the prior art is contacted with activated carbon fibers of a nano titanium dioxide photocatalyst, the waste gas is decomposed into carbon dioxide and water, the moisture in the waste gas is further increased, the subsequent reaction contact of the waste gas and the nano titanium dioxide photocatalyst is hindered, and the degradation efficiency and effect of the waste gas are reduced.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a waste gas treatment device based on nanometer titanium dioxide photocatalysis comprises a tower body, a baffle plate is arranged in the bottom of the tower body to separate water tanks which are bilaterally symmetrical, stirring mechanisms are arranged in the upper parts of the water tanks, the bottom of each water tank is connected with an air hood through an air duct, a plurality of groups of air holes are uniformly formed in the bottom of each air hood, an air inlet mechanism and an water inlet mechanism are sequentially arranged on the front side of the bottom of the tower body from top to bottom, a water pumping mechanism is arranged on the rear side of the bottom of the tower body, a partition plate is arranged in the middle of the tower body, a conical air inlet hood is arranged on the right part of the partition plate, the upper side of the partition plate is rotatably connected with a rotating frame through a shaft lever, a plurality of groups of round cavities are uniformly arranged in the rotating frame far away from the shaft center part, a silica, the right-hand member of L type pipe is down and be provided with the cover that catchments, tower body upper portion circumference inside wall evenly is provided with a plurality of groups ultraviolet fluorescent tube, be provided with spiral glass pipe in the tower body upper portion, the equidistant catalytic module that is provided with in the spiral glass pipe, spiral glass pipe lower extreme is provided with the toper gas collecting channel, the toper gas collecting channel is located directly over the toper suction hood, the top is provided with first air exhauster at the bottom of the tower body, first air exhauster top is provided with L type blast pipe, first air exhauster bottom is connected with spiral glass pipe upper end and is communicated with each other, tower body middle.
Furthermore, rabbling mechanism includes the (mixing) shaft and evenly sets up a plurality of groups stirring leaf at the (mixing) shaft downside, be provided with bilateral symmetry's support between tower body bottom inside wall and the baffle upper portion lateral wall, the (mixing) shaft upper end passes through the bearing frame and is connected with the rotate bracket connection, and the (mixing) shaft upper end all passes and wears out the support, drives the stirring leaf at the basin internal rotation through the (mixing) shaft, and then breaks up the waste gas that will get into in the basin, improves the water contact area in waste gas and the basin, and then improves the effect of getting rid of dust in the waste.
Further, the upper end of the stirring shaft is provided with a first belt wheel, the outer side wall of the bottom of the tower body is provided with a first cavity of bilateral symmetry and a stirring motor of bilateral symmetry respectively, the first cavity is communicated with the inside of the tower body, the first cavity is located on the upper side of the stirring motor, the output end of the stirring motor penetrates into the first cavity and is provided with a second belt wheel, the second belt wheel is matched with the first belt wheel through transmission of a first belt, the stirring motor drives the second belt wheel to rotate, and the first belt wheel drives the stirring shaft to rotate through transmission of the first belt.
Furthermore, the air inlet mechanism comprises an air inlet three-way pipe arranged at the front side of the bottom of the tower body and an air pressure pump arranged on a pipeline at the front part of the air inlet three-way pipe, two groups of pipelines at the rear part of the air inlet three-way pipe respectively penetrate into the water tank and are respectively communicated with the upper end of the air guide pipe, first electromagnetic valves are arranged at the middle sections of the two groups of pipelines at the rear part of the air inlet three-way pipe, an air inlet at the front end of the air pressure pump is communicated with a second exhaust fan through a pipeline, when waste gas is required to be introduced into one group of water tank, the PLC of the device controls the opening of one group of first electromagnetic valves and closes the other group of first electromagnetic valves, the waste gas is sucked into the input end of the air pressure pump through the second exhaust fan, the waste gas entering the air pressure pump is pressurized through the air pressure, thereby facilitating the waste gas to enter one group of water tanks.
Furthermore, the water inlet mechanism comprises a water inlet three-way pipe arranged on the front side of the bottom of the tower body and a water inlet pump arranged on a pipeline in front of the water inlet three-way pipe, two groups of pipelines at the rear part of the water inlet three-way pipe are respectively communicated with the water tanks, second electromagnetic valves are arranged in the middle sections of the two groups of pipelines at the rear part of the water inlet three-way pipe, when one group of water tanks are filled with water, the other group of second electromagnetic valves are controlled to be opened through a PLC, at the moment, the other group of second electromagnetic valves are in a closed state, and then the PLC controls the water inlet pump to be opened, so.
Furthermore, the water pumping mechanism comprises a water pumping three-way pipe arranged on the rear side of the bottom of the tower body and a water pumping pump arranged on a pipeline at the rear part of the water pumping three-way pipe, two groups of pipelines at the front part of the water pumping three-way pipe are respectively communicated with the water tanks, third electromagnetic valves are arranged in the middle sections of the two groups of pipelines at the front part of the water pumping three-way pipe, when water in one group of water tanks needs to be discharged, the third electromagnetic valves of the other group are controlled to be opened through the PLC, at the moment, the third electromagnetic valves of the other group are in a closed state, then the water pumping pump is controlled to be opened, the water in the one group of water tanks is discharged, and therefore the water in the.
Furthermore, the middle of the L-shaped pipe is internally provided with an exhaust assembly, the exhaust assembly comprises an exhaust motor arranged in the middle of the L-shaped pipe and an exhaust fan arranged at the output end of the exhaust motor, the left end of the L-shaped pipe is provided with a grid net, the efficiency of hot water gas exhausted from the L-shaped pipe is improved through the exhaust assembly, and external dust is reduced to enter the left end of the L-shaped pipe through the grid net.
Furthermore, actuating mechanism is including setting up the third band pulley on axostylus axostyle top and setting up second cavity and the step motor at tower body middle part front side, the second cavity is located the step motor upside, and the second cavity communicates with each other with the tower body is inside, the step motor output penetrates in the second cavity and is provided with the fourth band pulley, through second belt drive cooperation between fourth band pulley and the third band pulley, drive the fourth band pulley through the step motor and rotate certain angle, and through the transmission cooperation of second belt, and then drive the axostylus axostyle through the third band pulley and rotate certain angle, and then realize that the revolving rack rotates certain angle.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
1. the invention removes the moisture in the waste gas through the silica gel drying agent, and reduces the reaction contact of the subsequent waste gas and the nano titanium dioxide photocatalyst to a certain extent, thereby improving the degradation efficiency and effect of the waste gas.
2. According to the invention, the silica gel drying agent with less moisture is intermittently switched by controlling the rotating frame to intermittently rotate, so that the effect of removing the moisture in the waste gas by the silica gel drying agent is improved.
3. According to the invention, the spiral glass tube is arranged, so that the contact time of the waste gas and the nano titanium dioxide photocatalyst is prolonged, and the decomposition effect of the waste gas is further improved.
4. The air inlet mechanism, the water inlet mechanism and the water pumping mechanism are in linkage fit, so that water in the water tank can be replaced, and the effect of removing dust in waste gas is prevented from being influenced due to the fact that a large amount of dust is contained in the water tank.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic diagram of a front side view angle configuration of the present invention;
FIG. 2 is a schematic diagram of a left side view structure according to the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is an enlarged schematic view of the structure at A of the present invention;
FIG. 5 is a schematic view of a turret structure according to the present invention;
the reference numerals in the drawings denote: 1-a tower body; 2-a baffle plate; 3-a water tank; 4-gas-guide tube; 5-gas hood; 6-a separator; 7-a conical inlet hood; 8-shaft lever; 9-rotating the frame; 10-a round cavity; 11-silica gel desiccant; 12-a filter screen; 13-resistance heating plate; 14-L-shaped tubes; 15-a water collecting cover; 16-ultraviolet lamp tube; 17-a spiral glass tube; 18-a catalytic module; 19-a conical gas-collecting hood; 20-a first exhaust fan; a 21-L shaped exhaust pipe; 22-a stirring shaft; 23-a scaffold; 24-a first pulley; 25-a first cavity; 26-a stirring motor; 27-a second pulley; 28-air inlet three-way pipe; 29-gas pressure pump; 30-a first solenoid valve; 31-a water inlet three-way pipe; 32-a water inlet pump; 33-a second solenoid valve; 34-a water pumping three-way pipe; 35-a water pump; 36-a third solenoid valve; 37-a venting assembly; 38-a grid mesh; 39-a third pulley; 40-a second cavity; 41-step motor.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all 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 present invention will be further described with reference to the following examples.
Examples
The exhaust gas treatment device based on nano titanium dioxide photocatalysis of the embodiment is as follows, with reference to fig. 1-5: comprises a tower body 1, bilaterally symmetrical water tanks 3 are separated in the bottom of the tower body 1 through baffles 2, stirring mechanisms are arranged in the upper parts of the water tanks 3, an air hood 5 is connected in the bottom of each water tank 3 through an air duct 4, a plurality of groups of air holes are uniformly formed in the bottom of the air hood 5, an air inlet mechanism and a water inlet mechanism are sequentially arranged on the front side of the bottom of the tower body 1 from top to bottom, a water pumping mechanism is arranged on the rear side of the bottom of the tower body 1, a baffle plate 6 is arranged in the middle of the tower body 1, a conical air inlet hood 7 is arranged on the right part of the baffle plate 6, the upper side of the baffle plate 6 is rotatably connected with a rotating frame 9 through a shaft lever 8, a plurality of groups of round cavities 10 are uniformly arranged in the rotating frame 9 far away from the shaft center part, silica gel drying agents 11 are filled in the middle parts of the, the right end of the L-shaped pipe 14 faces downwards and is provided with a water collecting cover 15, a plurality of groups of ultraviolet lamp tubes 16 are uniformly arranged on the inner side wall of the circumference of the upper portion of the tower body 1, a spiral glass pipe 17 is arranged in the upper portion of the tower body 1, catalytic modules 18 are arranged in the spiral glass pipe 17 at equal intervals, a conical gas collecting cover 19 is arranged at the lower end of the spiral glass pipe 17, the conical gas collecting cover 19 is located right above the conical gas inlet cover 7, a first exhaust fan 20 is arranged at the bottom top of the tower body 1, an L-shaped exhaust pipe 21 is arranged at the top of the first exhaust fan 20, the bottom of the first exhaust fan 20 is.
Wherein, rabbling mechanism includes (mixing) shaft 22 and evenly sets up a plurality of groups stirring leaf at the (mixing) shaft 22 downside, be provided with bilateral symmetry's support 23 between 1 bottom inside wall of tower body and the 2 upper portion lateral walls of baffle, the (mixing) shaft 22 upper end passes through the bearing frame and is connected with support 23 rotation, and the (mixing) shaft 22 upper end all passes and wears out support 23, drive the stirring leaf at 3 internal rotations in basin through (mixing) shaft 22, and then break up the waste gas that will get into in the basin 3, improve the water contact area in waste gas and the basin 3, and then improve the effect of getting rid of dust in the waste gas.
Wherein, (mixing) shaft 22 upper end all is provided with first band pulley 24, 1 bottom lateral wall of tower body is provided with bilateral symmetry's first cavity 25 and bilateral symmetry's agitator motor 26 respectively, first cavity 25 all communicates with 1 inside of tower body, and first cavity 25 all is located agitator motor 26 upside, agitator motor 26 output penetrates in first cavity 25 and is provided with second band pulley 27, cooperate through first belt transmission between second band pulley 27 and the first band pulley 24, drive second band pulley 27 through agitator motor 26 and rotate, transmission through first belt, make first band pulley 24 drive (mixing) shaft 22's rotation.
Wherein, the air inlet mechanism comprises an air inlet three-way pipe 28 arranged at the front side of the bottom of the tower body 1 and an air pressure pump 29 arranged at a pipeline at the front part of the air inlet three-way pipe 28, two groups of pipelines at the rear part of the air inlet three-way pipe 28 respectively penetrate into the water tank 3 and are respectively communicated with the upper end of the air guide pipe 4, first electromagnetic valves 30 are arranged at the middle sections of the two groups of pipelines at the rear part of the air inlet three-way pipe 28, an air inlet at the front end of the air pressure pump 29 is communicated with a second exhaust fan through a pipeline, when waste gas is required to be introduced into one group of water tanks 3, the PLC of the device controls the opening of one group of first electromagnetic valves 30 and closes the other group of first electromagnetic valves 30, the waste gas is sucked into the input end of the air pressure pump 29 through the second exhaust fan, the waste gas entering the air pressure pump 29 is pressurized and enters the air guide, thereby facilitating the entry of exhaust gas into one of the sets of water tanks 3.
Wherein, the mechanism of intaking is including setting up the three-way pipe 31 of intaking in 1 bottom front side of tower body and setting up the intake pump 32 at the anterior pipeline of three-way pipe 31 of intaking, two sets of pipelines in three-way pipe 31 rear portion of intaking are connected with basin 3 respectively and are communicated with each other, three-way pipe 31 rear portion two sets of pipelines middle sections all are provided with second solenoid valve 33 of intaking, when filling water to one of them group basin 3, control one of them group's second solenoid valve 33 through PLC and open, another group's second solenoid valve 33 is in the closed condition this moment, opening of intake pump 32 is controlled again to PLC later, realize filling water to one of them group basin 3.
Wherein, the mechanism of drawing water is including setting up the three-way pipe 34 of drawing water in tower body 1 bottom rear side and setting up the suction pump 35 at the pipeline of the three-way pipe 34 rear portion of drawing water, two sets of pipelines in the front portion of three-way pipe 34 of drawing water are connected with basin 3 respectively and are communicated with each other, the two sets of pipelines middle sections in the front portion of three-way pipe 34 of drawing water all are provided with third solenoid valve 36, when needing to discharge the water in one of them group of basin 3, control one of them group of third solenoid valve 36 through PLC and open, another group of third solenoid valve 36 is in the closed condition this moment, later control suction pump 35 and open, the realization is discharged the water in one of them group of basin 3, thereby through the cooperation of mechanism of intaking and the mechanism.
Wherein, be provided with in the middle part of L type pipe 14 and pass through air exhaust subassembly 37, air exhaust subassembly 37 is including setting up the motor of airing exhaust in L type pipe 14 middle part and setting up the exhaust fan at the motor output end of airing exhaust, and L type pipe 14 left end is provided with grid net 38, through air exhaust subassembly 37, improves the efficiency that hot aqueous vapor discharged from L type pipe 14, through grid net 38, reduces external dust and gets into in L type pipe 14 left end.
Wherein, actuating mechanism is including setting up third band pulley 39 on 8 tops of axostylus axostyle and setting up second cavity 40 and the step motor 41 at 1 middle part front sides of tower body, second cavity 40 is located step motor 41 upside, and second cavity 40 communicates with each other with 1 inside of tower body, step motor 41 output penetrates in second cavity 40 and is provided with the fourth band pulley, cooperate through the second belt transmission between fourth band pulley and the third band pulley 39, drive the fourth band pulley through step motor 41 and rotate certain angle, and the transmission cooperation through the second belt, and then drive axostylus axostyle 8 through third band pulley 39 and rotate certain angle, and then realize that revolving rack 9 rotates certain angle.
The working principle is as follows: after high-pressure waste gas enters the gas hood 5 through the gas guide tube 4, the high-pressure waste gas passes through a plurality of groups of gas holes uniformly formed in the bottom of the gas hood 5, so that the waste gas in the gas hood 5 enters water in the water tank 3 in a bubble form, the water in the water tank 3 is stirred through the stirring mechanism, the waste gas entering the water is scattered, the contact area between the waste gas and the water is increased, the effect of removing dust in the waste gas by the water is further improved, then the waste gas is discharged from the water discharged out of the water tank 3 and enters the round cavity 10 through the conical gas inlet hood 7, moisture in the waste gas is absorbed by the silica gel drying agent 11, the moisture in the waste gas is removed, then the waste gas enters the spiral glass tube 17 through the conical gas inlet hood 19 under the action of the first exhaust fan 20, ultraviolet rays emitted by the ultraviolet lamp tube 16 perform a photocatalytic reaction with nano titanium dioxide in the catalytic module 18, so that the waste gas passing through the catalytic module 18, and finally exits the tower 1 through the L-shaped exhaust duct 21.
According to the invention, the drive mechanism is controlled by the PLC, so that the regulating shaft lever 8 rotates a certain angle at intervals to drive the rotating frame 9 to rotate a certain angle, namely, the round cavity 10 between the conical air inlet cover 19 and the conical air inlet cover 7 rotates out, and the round cavity 10 of the other group rotates to a position between the conical air inlet cover 19 and the conical air inlet cover 7, at the moment, the silica gel drying agent 11 in the round cavity 10 between the conical air inlet cover 19 and the conical air inlet cover 7 does not contain moisture, and the effect of removing moisture in waste gas is improved; meanwhile, when the round cavity 10 rotates to the position above the resistance heating plate 13, the resistance heating plate 13 evaporates the moisture in the silica gel drying agent 11, and the moisture enters the L-shaped pipe 14 through the water collecting cover 15, and finally the moisture is discharged out of the tower body 1, so that the silica gel drying agent 11 in the round cavity 10 can be reused; with the intermittent rotation of the rotating frame 9, the silica gel drying agent 11 with less moisture is intermittently switched, so that the effect of removing moisture in the waste gas by the silica gel drying agent 11 is improved.
According to the invention, through linkage matching of the air inlet mechanism, the water inlet mechanism and the water pumping mechanism, the PLC exchanges water in one group of water tanks 3 at intervals and changes a pipeline for waste gas to enter the water tanks 3, so that the waste gas always enters the water tanks 3 containing water, and the effect of removing dust in the waste gas is prevented from being influenced due to the fact that a large amount of dust is contained in the water tanks 3.
The device not only removes moisture in the waste gas through the silica gel drying agent 11, and reduces the reaction contact of the subsequent waste gas and the nano titanium dioxide photocatalyst to a certain extent, thereby improving the degradation efficiency and the effect of the waste gas, but also intermittently switches the silica gel drying agent 11 with less moisture by controlling the rotating rack 9 to intermittently rotate, thereby improving the effect of the silica gel drying agent 11 in removing the moisture in the waste gas, and simultaneously prolongs the contact time of the waste gas and the nano titanium dioxide photocatalyst by arranging the spiral glass tube 17, and further improves the decomposition effect of the waste gas; the device is still through mechanism, the mechanism of intaking of admitting air and the linkage cooperation of mechanism of drawing water, can follow the water of trading in the basin 3, avoids containing a large amount of dust because of the aquatic in the basin 3, influences the effect of getting rid of dust in the waste gas.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (8)

1. The utility model provides a waste gas treatment device based on nanometer titanium dioxide photocatalysis, includes tower body (1), its characterized in that: the water tank is characterized in that water tanks (3) which are bilaterally symmetrical are separated in the bottom of the tower body (1) through baffle plates (2), stirring mechanisms are arranged in the upper parts of the water tanks (3), air hoods (5) are connected in the bottoms of the water tanks (3) through air guide pipes (4), a plurality of groups of air holes are uniformly formed in the bottoms of the air hoods (5), an air inlet mechanism and an water inlet mechanism are sequentially arranged on the front side of the bottom of the tower body (1) from top to bottom, a water pumping mechanism is arranged on the rear side of the bottom of the tower body (1), a partition plate (6) is arranged in the middle of the tower body (1), a conical air inlet hood (7) is arranged on the right part of the partition plate (6), the upper side of the partition plate (6) is rotatably connected with a rotating frame (9) through a shaft lever (8), a plurality of groups of circular cavities (10) are uniformly arranged in the, a resistance heating plate (13) is arranged on the left side of the upper side of the partition plate (6), an L-shaped pipe (14) is arranged on the left side of the upper part of the tower body (1), the left end of the L-shaped pipe (14) penetrates out of the tower body (1), the right end of the L-shaped pipe (14) faces downwards and is provided with a water collecting cover (15), a plurality of groups of ultraviolet lamp tubes (16) are uniformly arranged on the inner side wall of the circumference of the upper part of the tower body (1), a spiral glass pipe (17) is arranged in the upper part of the tower body (1), catalytic modules (18) are arranged in the spiral glass pipe (17) at equal intervals, a conical gas collecting cover (19) is arranged at the lower end of the spiral glass pipe (17), the conical gas collecting cover (19) is positioned right above the conical gas inlet cover (7), a first exhaust fan (20) is arranged at, the front side of the middle part of the tower body (1) is provided with a driving mechanism.
2. The exhaust gas treatment device based on nano titanium dioxide photocatalysis according to claim 1, wherein the stirring mechanism comprises a stirring shaft (22) and a plurality of groups of stirring blades uniformly arranged on the lower side of the stirring shaft (22), bilaterally symmetrical supports (23) are arranged between the inner side wall of the bottom of the tower body (1) and the upper side wall of the baffle (2), the upper end of the stirring shaft (22) is rotatably connected with the supports (23) through a bearing seat, and the upper end of the stirring shaft (22) penetrates through and penetrates out of the supports (23).
3. The exhaust gas treatment device based on nanometer titanium dioxide photocatalysis according to claim 2, characterized in that the upper end of the stirring shaft (22) is provided with a first belt wheel (24), the outer side wall of the bottom of the tower body (1) is provided with a first cavity (25) and a stirring motor (26) which are bilaterally symmetric, the first cavity (25) is communicated with the inside of the tower body (1), the first cavity (25) is positioned on the upper side of the stirring motor (26), the output end of the stirring motor (26) penetrates into the first cavity (25) and is provided with a second belt wheel (27), and the second belt wheel (27) is in transmission fit with the first belt wheel (24) through a first belt.
4. The nano titanium dioxide photocatalysis-based exhaust gas treatment device according to claim 1, wherein the gas inlet mechanism comprises a gas inlet three-way pipe (28) arranged at the front side of the bottom of the tower body (1) and a gas pressure pump (29) arranged at a pipeline at the front part of the gas inlet three-way pipe (28), two groups of pipelines at the rear part of the gas inlet three-way pipe (28) respectively penetrate into the water tank (3) and are respectively communicated with the upper end of the gas guide pipe (4), first electromagnetic valves (30) are respectively arranged at the middle sections of the two groups of pipelines at the rear part of the gas inlet three-way pipe (28), and a second exhaust fan is communicated with a gas inlet at the front end of the gas pressure pump (29) through pipeline connection.
5. The exhaust gas treatment device based on nanometer titanium dioxide photocatalysis according to claim 1, characterized in that the water inlet mechanism comprises a water inlet three-way pipe (31) arranged at the front side of the bottom of the tower body (1) and a water inlet pump (32) arranged at the front pipeline of the water inlet three-way pipe (31), two groups of pipelines at the rear part of the water inlet three-way pipe (31) are respectively communicated with the water tank (3), and a second electromagnetic valve (33) is arranged at the middle section of each of the two groups of pipelines at the rear part of the water inlet three-way pipe (31).
6. The exhaust gas treatment device based on nano titanium dioxide photocatalysis according to claim 1, wherein the water pumping mechanism comprises a water pumping three-way pipe (34) arranged at the rear side of the bottom of the tower body (1) and a water pump (35) arranged at a pipeline at the rear part of the water pumping three-way pipe (34), two groups of pipelines at the front part of the water pumping three-way pipe (34) are respectively communicated with the water tank (3), and a third electromagnetic valve (36) is arranged at the middle part of each group of pipelines at the front part of the water pumping three-way pipe (34).
7. The exhaust gas treatment device based on nano titanium dioxide photocatalysis as claimed in claim 1, wherein a ventilation assembly (37) is arranged in the middle of the L-shaped pipe (14), the ventilation assembly (37) comprises a ventilation motor arranged in the middle of the L-shaped pipe (14) and a ventilation fan arranged at the output end of the ventilation motor, and the left end of the L-shaped pipe (14) is provided with a grid net (38).
8. The exhaust gas treatment device based on nanometer titanium dioxide photocatalysis according to claim 1, characterized in that the driving mechanism comprises a third belt wheel (39) arranged at the top end of the shaft lever (8), a second cavity (40) and a step motor (41) which are arranged at the front side of the middle part of the tower body (1), the second cavity (40) is positioned at the upper side of the step motor (41), the second cavity (40) is communicated with the inside of the tower body (1), the output end of the step motor (41) penetrates into the second cavity (40) and is provided with a fourth belt wheel, and the fourth belt wheel is in transmission fit with the third belt wheel (39) through a second belt.
CN202010660966.3A 2020-07-10 2020-07-10 Exhaust treatment device based on nano titanium dioxide photocatalysis Pending CN111617634A (en)

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Application publication date: 20200904