CN110898591A - Acid gas purification treatment equipment and treatment process - Google Patents
Acid gas purification treatment equipment and treatment process Download PDFInfo
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- CN110898591A CN110898591A CN201911225098.XA CN201911225098A CN110898591A CN 110898591 A CN110898591 A CN 110898591A CN 201911225098 A CN201911225098 A CN 201911225098A CN 110898591 A CN110898591 A CN 110898591A
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- 238000000746 purification Methods 0.000 title claims abstract description 30
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- 239000002912 waste gas Substances 0.000 claims abstract description 166
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 146
- 239000007789 gas Substances 0.000 claims abstract description 72
- 238000007791 dehumidification Methods 0.000 claims abstract description 46
- 239000000428 dust Substances 0.000 claims abstract description 40
- 239000012535 impurity Substances 0.000 claims abstract description 28
- 238000007539 photo-oxidation reaction Methods 0.000 claims abstract description 27
- 238000001179 sorption measurement Methods 0.000 claims abstract description 27
- 230000003197 catalytic effect Effects 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 20
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- 239000007788 liquid Substances 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 5
- 210000003437 trachea Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 38
- 238000011221 initial treatment Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 description 11
- 239000012717 electrostatic precipitator Substances 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 241000282414 Homo sapiens Species 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
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- 238000005406 washing Methods 0.000 description 4
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- 230000002378 acidificating effect Effects 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
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- 230000002588 toxic effect Effects 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- RICIHZRFINKXFB-UHFFFAOYSA-N carbonyl dichloride;phenol Chemical compound ClC(Cl)=O.OC1=CC=CC=C1 RICIHZRFINKXFB-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- 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
- B01D53/26—Drying gases or vapours
-
- 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
-
- 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
- B01D53/86—Catalytic processes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
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Abstract
The invention relates to acid gas purification treatment equipment and a treatment process, which comprise an air inlet pipe, a water treatment device and a photo-oxidation catalytic device, wherein a dehumidifying device is arranged between the water treatment device and the photo-oxidation catalytic device, the water treatment device, the dehumidifying device and the photo-oxidation catalytic device are sequentially communicated through a connecting air pipe, and an electrostatic dust removal device is arranged in the air inlet pipe. When the waste gas is treated, the particle impurities in the waste gas are firstly subjected to electrostatic adsorption, the waste gas after primary treatment can be combined with filtered water for treatment, the impurities in the waste gas can be further adsorbed, the waste gas after water filtration treatment can be subjected to dehumidification treatment, water molecules in the waste gas can be removed, the subsequent normal filtration treatment of the waste gas can be ensured, the treatment effect of the waste gas can be ensured, and finally, the waste gas is subjected to photo-oxidation treatment, so that the waste gas can be further evolved, and the effective treatment of the waste gas can be ensured.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to acid gas purification treatment equipment and a treatment process.
Background
Waste gas refers to toxic and harmful gas discharged by human in the production and living process; especially chemical plants, steel plants, pharmaceutical plants, coking plants, oil refineries and the like, the discharged waste gas has large smell, and the industrial waste gas discharged by various production enterprises is an important source of atmospheric pollutants; if a large amount of industrial waste gas is discharged into the atmosphere after reaching the standard without treatment, the quality of the atmospheric environment is inevitably reduced, serious harm is brought to the human health, and huge loss is caused to national economy; at present, the waste gas discharged by factories contains acidic gas substances, which seriously pollutes the environment and influences the human health.
At present, some acid gases are harmful to human beings, for example, the air contains sulfur dioxide, sulfur trioxide and the like when being polluted, the gases and oxygen and the like generate chemical reactions in rainy days to generate strong acid chemical substances of sulfuric acid, the sulfuric acid has strong corrosion action, and the acid can naturally corrode objects on the ground, namely acid rain, and the acid rain has the greatest influence on trees, can cause death and seriously influences the living environment of the human beings.
The acid gas waste gas treatment device is used for purifying NOX, SO2, H2SO4, HCl, HF, SIF4, CO2 and other toxic and harmful gases generated in the mechanical processing industries of chemical engineering, electroplating, hardware, electrical appliances, medicines, printing and dyeing, telecommunication, clocks and the like; it is also suitable for deodorizing ammonia, hydrogen sulfide, phenol phosgene, formaldehyde, methanol, amines and other malodorous substances.
At present, the invention patent with publication number CN108837676A discloses an acid gas recovery and purification treatment device for chemical product research, which comprises a casing, a gas washing box is fixed on one side of the inner wall of the casing through bolts, soda water is filled in the gas washing box, a primary filter screen and a secondary filter screen are fixed on one side of the inner wall of the casing through bolts, the secondary filter screen is located below the primary filter screen, an anion purification layer is fixed on one side of the inner wall of the casing through bolts, the anion purification layer is located below the secondary filter screen, an active carbon adsorption layer is fixed on one side of the inner wall of the casing through bolts, the active carbon adsorption layer is located below the anion purification layer, and a disinfection box is fixed on the outer wall of the bottom of the casing through bolts.
The acidic waste gas in the technical proposal is firstly fed into a gas washing box, the waste gas is mixed with soda water in the gas washing box and then passes through a primary filter screen, a secondary filter screen and an active carbon adsorption layer, after being filtered for many times, the waste gas enters the sterilizing box for sterilization treatment, although the waste gas can be sterilized to a certain extent, however, after the exhaust gas is mixed with soda water and filtered, the exhaust gas entering the filter screen and the activated carbon adsorption layer contains a large amount of water molecules, water molecules in the waste gas can be adsorbed when the filter screen and the active carbon adsorption layer adsorb and filter, and the water molecules can influence the adsorption treatment effect of the primary filter screen, the secondary filter screen and the active carbon adsorption layer on the waste gas, therefore, the adsorption effect on harmful substances in the acid gas is not obvious, a good waste gas treatment effect is not achieved, and the discharged gas cannot reach the discharge standard.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the acid gas purification treatment equipment with a remarkable waste gas treatment effect.
The above object of the present invention is achieved by the following technical solutions:
an acid gas purification treatment device comprises an air inlet pipe, a water treatment device and a photo-oxidation catalytic device, wherein the water treatment device and the photo-oxidation catalytic device are sequentially communicated through a connecting air pipe, a dehumidifying device is arranged between the water treatment device and the photo-oxidation catalytic device, the dehumidifying device comprises a first dehumidifying section, a second dehumidifying section and a drying section, and the first dehumidifying section, the second dehumidifying section and the drying section are communicated with each other;
the first dehumidification section comprises a first dehumidification box body communicated with the water treatment device, a first air inlet fan arranged at an air inlet of the first dehumidification box body and a first spiral blade fixedly connected with the inner wall of the first dehumidification box body, the first spiral blade is spirally and upwards arranged, a spiral diversion trench is formed in the inner wall of the first dehumidification box body, a liquid collection trench is formed in the bottom wall of the first dehumidification box body, and a first drainage pipe is communicated in the liquid collection trench;
the second dehumidification section comprises a second dehumidification box body arranged at the upper end of the first dehumidification box body, a second air inlet fan arranged at an air inlet of the second dehumidification box body and a dry cotton piece fixedly connected with the inner wall of the dehumidification box body, and the dry cotton piece is spirally arranged;
the drying section includes the drying box that is linked together with the second dehumidification box and sets up the drying plate in the drying box, the equipartition has the heater strip in the drying plate.
By adopting the technical scheme, the acid gas can enter the dehumidifying device after being subjected to water treatment, the gas enters the first dehumidifying box body through the first air inlet fan, the acid gas can collide with the first spiral blade in the first dehumidifying box body under the flow guide effect of the first air inlet fan, and after the waste gas collides with the first spiral blade, water molecules in the waste gas can be condensed under the limiting and blocking effect of the first spiral blade, so that condensed water drops can slide downwards along the spiral flow guide groove, the condensed water molecules can flow into the liquid collecting groove and are discharged through the first water discharging pipe, and the water molecules in the acid gas can be intercepted and the condensed waste water can be discharged;
the waste gas after primary treatment enters the second dehumidification box body under the action of the second air inlet fan, and the drying cotton sheets spirally arranged in the second dehumidification box body can absorb water molecules in the waste gas, so that the content of the water molecules in the waste gas can be reduced, the later-stage waste gas treatment effect can be ensured, and the waste gas treatment effect is more remarkable;
waste gas after the secondary treatment enters into the second dehumidification box, and residual hydrone evaporates in the heater strip in the drying plate can be to waste gas, can guarantee that the waste gas hydrone content that gets into in the follow-up exhaust treatment device is less to can guarantee to the subsequent processing of waste gas, can make the treatment effect of waste gas better.
The present invention in a preferred example may be further configured to: the spiral direction of the first spiral blade is opposite to the spiral direction of the airflow; the spiral direction of the drying cotton piece is opposite to the spiral direction of the air flow.
Through adopting above-mentioned technical scheme, the air current is the heliciform under the effect of fan is admitted to the second and rises, the air current that the heliciform rises can strike with first helical blade and dry cotton piece, because the air current screw direction sets up with the spiral opposite direction of first helical blade and dry cotton piece, the air current can produce bigger impact action with first helical blade and dry cotton piece, thereby the hydrone in the air current can take place to condense after striking first helical blade, the air current is after striking dry cotton piece simultaneously, dry cotton piece can absorb more hydrones in the air current, thereby reduce the content of hydrone in the waste gas, can guarantee the treatment quality of follow-up waste gas.
The present invention in a preferred example may be further configured to: an electrostatic dust removal device is arranged in the air inlet pipe, the electrostatic dust removal device comprises an electrostatic dust removal box arranged on the air inlet pipe, and a positive electrode plate and a negative electrode plate which are arranged in the electrostatic dust removal box, and the positive electrode plate and the negative electrode plate are arranged in parallel with the running direction of the airflow;
the lower end of the electrostatic dust removal box is provided with a dust exhaust port.
Through adopting above-mentioned technical scheme, before waste gas carries out water treatment, waste gas can pass through electrostatic precipitator device, positive electrode plate and negative electrode plate among the electrostatic precipitator device can adsorb the particle impurity in the waste gas under the circumstances of circular telegram, thereby can make the impurity content in the waste gas less, the effect of exhaust-gas treatment can be guaranteed in the subsequent processing of waste gas, make positive electrode plate and negative electrode plate better to the adsorption of air current and adsorption effect, make showing more of treatment effect of waste gas, the dust exhaust mouth of electrostatic precipitator case lower extreme can discharge the dust of collecting, avoid impurity dust to pile up.
The present invention in a preferred example may be further configured to: the water treatment device comprises a first water treatment section and a second water treatment section, wherein the first water treatment section comprises a first water tank, a spiral coil communicated with an air inlet of the first water tank and a first air outlet arranged on the spiral coil, and the first water tank is communicated with a liquid inlet pipe and a liquid outlet pipe;
the second water treatment section comprises a second water tank communicated with the first water tank through a vent pipe and a spray head arranged in the second water tank.
By adopting the technical scheme, when the waste gas is subjected to water treatment, the waste gas enters the first water tank through the spiral coil, the waste gas can be differentiated through the first air outlet on the spiral coil, and the differentiated waste gas can be fully contacted with water, so that the water can fully absorb impurities and harmful substances in the waste gas, and the purification treatment effect on the waste gas is ensured; waste gas can enter into the second water tank after first water tank in, the shower nozzle in the second water tank can play the effect that sprays to waste gas, can make abundant with the water phase contact joint of waste gas, can guarantee the treatment effect to waste gas to can guarantee that waste gas can not cause harm to the environment after handling the emission.
The present invention in a preferred example may be further configured to: the photo-oxidation catalytic device comprises a treatment box body, a UV lamp tube arranged in the treatment box body and a guide plate fixedly connected in the treatment box body.
Through adopting above-mentioned technical scheme, after waste gas dehumidifies through dehydrating unit, during waste gas enters into the photo-oxidation catalytic unit, the UV fluorescent tube in the processing box can play the sterile effect of illumination to waste gas, and the guide plate in the processing box can play spacing effect of slowing down to waste gas to can guarantee the purification treatment effect to waste gas, can make waste gas more clean after handling the emission.
The present invention in a preferred example may be further configured to: a plurality of flow increasing fans are arranged in the first water tank.
Through adopting above-mentioned technical scheme, when waste gas and aqueous phase contact, start the fan that increases the class, make the fan that increases the class drive the rivers flow in the first water tank to can make waste gas can carry out abundant contact with water when entering into in the first water tank, guarantee the purification treatment effect to waste gas.
The present invention in a preferred example may be further configured to: and an air hammer is arranged on the outer side of the electrostatic dust removal box.
Through adopting above-mentioned technical scheme, when positive electrode plate and negative electrode plate adsorbed the impurity in to waste gas, start the air hammer, the air hammer can act on positive electrode plate and negative electrode plate, prevents that impurity adhesion from guaranteeing positive electrode plate and negative electrode plate impurity adsorption's effect on positive electrode plate and negative electrode plate.
The second aim of the invention is realized by the following technical scheme:
an acid gas purification treatment process comprises the following steps:
step1, introducing the waste gas into the gas inlet pipe, and performing electrostatic adsorption on particle impurities in the waste gas;
step2, performing water filtration treatment on the waste gas after electrostatic adsorption;
step3, enabling the waste gas after water filtration treatment to enter dehumidification equipment, and removing water molecules in the waste gas;
step4, carrying out photo-oxidation treatment on the dried exhaust gas.
Through adopting above-mentioned technical scheme, when handling waste gas, carry out electrostatic absorption to the particle impurity in the waste gas earlier, waste gas can combine the processing with the drainage after preliminary treatment, can further adsorb the impurity in the waste gas, waste gas after water filtration handles passes through dehumidification again, can get rid of the hydrone in the waste gas, guarantee to the subsequent normal filtration processing of waste gas, can guarantee the treatment effect to waste gas, carry out the light oxygen processing to waste gas at last, can further evolve waste gas, guarantee the effective processing to waste gas.
The present invention in a preferred example may be further configured to: the water filtration treatment of the exhaust gas in Step2 is divided into two water treatment stages.
Through adopting above-mentioned technical scheme, two water treatment stages can carry out abundant filtration to the particulate impurity in the waste gas to can guarantee the effective processing to waste gas, the treatment effect is showing more.
The present invention in a preferred example may be further configured to: in Step4, the exhaust gas is subjected to photo-oxidation treatment and activated carbon adsorption.
Through adopting above-mentioned technical scheme, can adsorb the peculiar smell in the waste gas when light oxygen is handled to can make the gas of emission cleaner.
In summary, the invention includes at least one of the following beneficial technical effects:
1. acid gas can enter the dehumidifying device after being subjected to water treatment, the gas enters the first dehumidifying box body through the first air inlet fan, the first dehumidifying box body can carry out primary treatment on water molecules in waste gas, the waste gas after the primary treatment can enter the second dehumidifying box body under the action of the second air inlet fan, and the drying cotton sheets spirally arranged in the second dehumidifying box body can play an adsorption role on the water molecules in the waste gas, so that the water molecule content in the waste gas can be reduced, the later-stage waste gas treatment effect can be ensured, and the waste gas treatment effect is more remarkable;
2. the spiral direction of the air flow is opposite to the spiral direction of the first spiral blade and the drying cotton piece, and the air flow can generate larger impact action with the first spiral blade and the drying cotton piece, so that water molecules in the air flow can be condensed after impacting the first spiral blade, and meanwhile, after the air flow impacts the drying cotton piece, the drying cotton piece can absorb more water molecules in the air flow, so that the content of the water molecules in the waste gas is reduced, and the treatment quality of the subsequent waste gas can be ensured;
3. before the waste gas is subjected to water treatment, the waste gas passes through the electrostatic dust removal device, and a positive electrode plate and a negative electrode plate in the electrostatic dust removal device can adsorb particle impurities in the waste gas under the electrified condition, so that the content of the impurities in the waste gas is low, and the effect of waste gas treatment can be ensured in the subsequent treatment process of the waste gas;
4. when handling waste gas, carry out electrostatic absorption to the particle impurity in the waste gas earlier, waste gas can combine the processing with the drainage after preliminary treatment, can further adsorb the impurity in the waste gas, waste gas after water filtration handles passes through dehumidification again, can get rid of the hydrone in the waste gas, guarantee to the subsequent normal filtration processing of waste gas, can guarantee the treatment effect to waste gas, carry out the light oxygen processing to waste gas at last, can further evolve waste gas, guarantee the effective processing to waste gas.
Drawings
FIG. 1 is a schematic view of the overall structure of a gas purification apparatus;
FIG. 2 is a detailed schematic diagram of an electrostatic precipitator;
FIG. 3 is a detailed schematic of a first water treatment stage;
FIG. 4 is a detailed schematic of a second water treatment stage;
FIG. 5 is a detailed schematic of the first and second dehumidification sections;
FIG. 6 is a detailed schematic of the drying section;
FIG. 7 is a schematic diagram of a photo-oxidation catalyst device.
In the figure, 1, an air inlet pipe; 2. a water treatment device; 21. a first water treatment stage; 211. a first water tank; 212. a helical coil; 213. a first air outlet hole; 214. a liquid inlet pipe; 215. a liquid discharge pipe; 216. a flow increasing fan; 22. a second water treatment section; 221. a second water tank; 222. a spray head; 224. a second air outlet; 3. a photo-oxidation catalytic device; 31. a treatment box body; 32. a UV lamp tube; 33. a baffle; 34. an activated carbon adsorption layer; 5. connecting an air pipe; 6. a dehumidifying device; 61. a first dehumidification section; 611. a first dehumidification box body; 612. a first air supply fan; 613. a first helical blade; 614. a spiral diversion trench; 615. a liquid collecting tank; 616. a first drain pipe; 62. a second dehumidification section; 621. a second dehumidification box body; 622. a second air supply fan; 623. drying the cotton piece; 63. a drying section; 631. drying the box body; 632. drying the plate; 7. an electrostatic dust removal device; 71. an electrostatic dust removal box; 72. a positive electrode plate; 73. a negative electrode plate; 74. a dust exhaust port; 8. a breather pipe; 9. and (5) air hammering.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the acid gas purification treatment equipment disclosed by the invention comprises an air inlet pipe 1, a water treatment device 2 and a photo-oxidation catalytic device 3, wherein the water treatment device 2 comprises a first water treatment section 21 and a second water treatment section 22, a dehumidifying device 6 is arranged between the water treatment device 2 and the photo-oxidation catalytic device 3, the dehumidifying device 6 comprises a first dehumidifying section 61, a second dehumidifying section 62 and a drying section 63, the first dehumidifying section 61 and the second dehumidifying section 62 are communicated in the vertical direction, the drying section 63 is arranged on one side of the first dehumidifying section 61 and the second dehumidifying section 62, the water treatment device 2, the dehumidifying device 6 and the photo-oxidation catalytic device 3 are sequentially communicated through a connecting air pipe 5, an electrostatic dust removal device 7 is arranged in the air inlet pipe 1, waste gas enters the electrostatic dust removal device 7 through the air inlet pipe 1, and the electrostatic dust removal device 7 can perform primary purification treatment on the waste gas, dust particles in the adsorption separation exhaust gas, after preliminary treatment, waste gas enters into water treatment facilities 2, water treatment facilities 2 can carry out further separation processing to dust and harmful substance in the waste gas, after waste gas passes through water treatment, waste gas enters into dehydrating unit 6, dehydrating unit 6 can absorb and dry remaining hydrone in the waste gas, waste gas after absorbing the drying enters into photo-oxidation catalytic unit 3, photo-oxidation catalytic unit 3 can adsorb and separate remaining harmful substance in the waste gas, can guarantee through handling the more clean of waste gas after the separation, can not pollute the atmospheric environment when discharging.
Referring to fig. 2, the electrostatic dust collector 7 includes an electrostatic dust collection box 71 communicated with the air inlet pipe 1, and a positive electrode plate 72 and a negative electrode plate 73 arranged in the electrostatic dust collection box 71, the positive electrode plate 72 and the negative electrode plate 73 are parallel to each other, and the positive electrode plate 72 and the negative electrode plate 73 are arranged parallel to the running direction of the air flow, when the electrostatic dust collector 7 runs, the positive electrode plate 72 and the negative electrode plate 73 are electrified, after the electrification, the positive electrode plate 72 and the electrode plates generate static electricity, the static electricity can adsorb impurities and dust particles in the exhaust gas, and the exhaust gas can be subjected to preliminary treatment.
Two air hammers 9 of electrostatic precipitator case 71 lateral wall fixedly connected with can start air hammer 9 after positive electrode plate 72 and negative electrode plate 73 adsorb the particle impurity in the waste gas, and air hammer 9 can vibrate to can make the impurity dust of adhesion drop to electrostatic precipitator case 71's bottom on positive electrode plate 72 and the negative electrode plate 73, can guarantee positive electrode plate 72 and the performance that negative electrode plate 73 adsorbs particle impurity.
The lower extreme of electrostatic precipitator case 71 is provided with dust exhaust port 74, is provided with the end cover on the dust exhaust port 74, can open the end cover at the recognition goods that need clear up impurity, can discharge the impurity in the electrostatic precipitator case 71.
Referring to fig. 3, first water treatment section 21 includes first water tank 211, the spiral coil 212 that is linked together with first water tank 211 air inlet, set up first venthole 213 on spiral coil 212, first venthole 213 is provided with a plurality ofly, first water tank 211 intussuseption is filled with cleaning water, cleaning water and water mix can play filtration treatment's effect to the impurity in the waste water, waste gas can discharge through first venthole 213 when entering into spiral coil 212, exhaust waste gas can with the abundant mixture of cleaning water, thereby can guarantee the purification treatment effect of cleaning water to waste gas.
Be provided with in the first water tank 211 and increase a class fan 216, when the clean water is handled waste gas, start and increase class fan 216, it can drive the rivers flow in the first water tank 211 to increase class fan 216, thereby can guarantee the flow of rivers in the first water tank 211, can accelerate the speed that clean water and waste gas combine when rivers flow, can make the abundant combination of carbon dioxide and waste gas simultaneously, make waste gas treatment more abundant, the intercommunication has feed liquor pipe 214 and fluid-discharge tube 215 on the first water tank 211, the clean water in the first water tank 211 can be changed to feed liquor pipe 214 and fluid-discharge tube 215, guarantee the filter effect of clean water.
Referring to fig. 4, the second water treatment section 22 includes a second water tank 221 communicated with the first water tank 211 through a vent pipe 8 and a spray head 222 disposed in the second water tank 221, and the waste gas is filtered and adsorbed by the first water treatment section 21 and then enters the second water tank 221, and the spray head 222 is started to make the spray head 222 drive cleaning water to act on the waste gas, so that the waste gas can be further filtered and separated, and the filtering treatment effect on the waste gas can be ensured.
Referring to fig. 5, the first dehumidification section 61 includes a first dehumidification box 611 communicated with the water treatment apparatus 2, a first air inlet fan 612 disposed at an air inlet of the first dehumidification box 611, and a first helical blade 613 fixedly connected to an inner wall of the first dehumidification box 611, the first helical blade 613 is disposed in a helical direction, the first air inlet fan 612 is activated, the gas enters the first dehumidification box 611 through the first air inlet fan 612, the acid gas can collide with the first helical blade 613 in the first dehumidification box 611 under the guiding action of the first air inlet fan 612, after the exhaust gas collides with the first helical blade 613, water molecules in the exhaust gas are condensed under the limiting and blocking action of the first helical blade 613, and the water after condensation flows downwards, so that the exhaust gas and the water molecules can be separated.
Referring to fig. 5, the second dehumidifying section 62 includes a second dehumidifying box 621 disposed at the upper end of the first dehumidifying box 611, a second air intake fan 622 disposed at the air inlet of the second dehumidifying box 621, and a dry cotton sheet 623 fixedly connected to the inner wall of the dehumidifying box, the dry cotton sheet 623 is spirally disposed, the second air intake fan 622 is activated, the primarily treated exhaust gas enters the second dehumidifying box 621 under the effect of the second air intake fan 622, the spirally disposed dry cotton sheet 623 in the second dehumidifying box 621 can absorb water molecules in the exhaust gas, and the water molecule content in the exhaust gas can be reduced.
Referring to fig. 5, the spiral direction of the first spiral blade 613 is opposite to the spiral direction of the air flow, the spiral direction of the drying cotton piece 623 is opposite to the spiral direction of the air flow, and the spiral direction of the air flow is opposite to the spiral direction of the first spiral blade 613 and the drying cotton piece 623, so that the air flow can generate a greater impact effect with the first spiral blade 613 and the drying cotton piece 623, and the separation effect of water molecules and waste gas is better.
Referring to fig. 5, a spiral diversion trench 614 is formed in the inner wall of the first dehumidification box body 611, a liquid collection trench 615 is formed in the bottom wall of the first dehumidification box body 611, a first drainage pipe 616 is communicated with the liquid collection trench 615, condensed water drops slide down along the spiral diversion trench 614, condensed water molecules flow into the liquid collection trench 615 and are discharged through the first drainage pipe 616, and water molecules in the acidic gas can be intercepted and condensed wastewater can be discharged.
Referring to fig. 6, the drying section 63 includes a drying box 631 communicated with the second dehumidifying box 621 and a drying plate 632 disposed in the drying box 631, heating wires are uniformly distributed in the drying plate 632, the heating wires are electric heating wires, the heating wires are started, the exhaust gas after the secondary treatment enters the drying box 631, and the heating wires in the drying plate 632 can evaporate residual water molecules in the exhaust gas to fully treat the water molecules in the exhaust gas.
Referring to fig. 7, photo-oxidation catalytic unit 3 is including handling the box 31, set up UV fluorescent tube 32 and the guide plate 33 of fixed connection in handling the box 31, guide plate 33 is provided with threely in turn, the air vent has been seted up on the guide plate 33, the air current is when carrying out the striking with guide plate 33, guide plate 33 can play the effect of blockking to the air current, can slow down the air current velocity of flow, guarantee the sufficient contact of air current and UV fluorescent tube 32, guarantee the treatment effect.
Referring to fig. 7, the outside of the guide plate 33 is fixedly connected with an activated carbon adsorption layer 34, and the activated carbon adsorption layer 34 can purify the exhaust gas, so as to ensure that the exhausted gas is cleaner.
The implementation principle of the embodiment is as follows: the waste gas enters the electrostatic dust collection device 7 through the gas inlet pipe 1, the electrostatic dust collection device 7 can perform primary purification treatment on the waste gas, dust particles in the waste gas are adsorbed and separated, after the primary treatment, the waste gas enters the water treatment device 2, the water treatment device 2 can further separate and treat dust and harmful substances in the waste gas, after waste gas is through water treatment, waste gas enters into dehydrating unit 6, dehydrating unit 6 can absorb and dry remaining hydrone in the waste gas, waste gas after absorbing the drying enters into photo-oxidation catalytic unit 3 and active carbon device, photo-oxidation catalytic unit 3 and active carbon device can adsorb and separate remaining harmful substance in the waste gas, can guarantee through handling the cleaner of waste gas after the separation, can not pollute the atmospheric environment when discharging.
An acid gas purification treatment process comprises the following steps:
step1, introducing the waste gas into the gas inlet pipe 1, and performing electrostatic adsorption on particle impurities in the waste gas;
step2, performing water filtration treatment on the waste gas after electrostatic adsorption;
step3, enabling the waste gas after water filtration treatment to enter dehumidification equipment, and removing water molecules in the waste gas;
step4, carrying out photo-oxidation treatment on the dried exhaust gas;
the water filtration treatment of waste gas divide into two water treatment stages in Step2, in Step4, carry out activated carbon adsorption when carrying out light oxygen treatment to waste gas, when handling waste gas, carry out electrostatic adsorption to the particle impurity in the waste gas earlier, waste gas can combine the processing with the drainage after preliminary treatment, can further adsorb the impurity in the waste gas, waste gas after water filtration treatment passes through dehumidification again, can get rid of the hydrone in the waste gas, guarantee to the subsequent normal filtration treatment of waste gas, can guarantee the treatment effect to waste gas, carry out light oxygen treatment to waste gas at last, can further evolve waste gas, guarantee the effective processing to waste gas.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (10)
1. The utility model provides an acid gas purification treatment equipment, includes intake pipe (1), water treatment facilities (2) and photo-oxidation catalytic unit (3) are linked together its characterized in that through connecting trachea (5) in proper order: a dehumidifying device (6) is arranged between the water treatment device (2) and the photo-oxidation catalytic device (3), the dehumidifying device (6) comprises a first dehumidifying section (61), a second dehumidifying section (62) and a drying section (63), and the first dehumidifying section (61), the second dehumidifying section (62) and the drying section (63) are communicated with each other;
the first dehumidification section (61) comprises a first dehumidification box body (611) communicated with the water treatment device (2), a first air inlet fan (612) arranged at an air inlet of the first dehumidification box body (611) and a first spiral blade (613) fixedly connected with the inner wall of the first dehumidification box body (611), the first spiral blade (613) is arranged in a spiral mode, a spiral guide groove (614) is formed in the inner wall of the first dehumidification box body (611), a liquid collection groove (615) is formed in the bottom wall of the first dehumidification box body (611), and a first drainage pipe (616) is communicated in the liquid collection groove (615);
the second dehumidification section (62) comprises a second dehumidification box body (621) arranged at the upper end of the first dehumidification box body (611), a second air inlet fan (622) arranged at an air inlet of the second dehumidification box body (621) and dry cotton sheets (623) fixedly connected with the inner wall of the dehumidification box body, and the dry cotton sheets (623) are spirally arranged;
the drying section (63) comprises a drying box body (631) communicated with the second dehumidifying box body (621) and a drying plate (632) arranged in the drying box body (631), and heating wires are uniformly distributed in the drying plate (632).
2. The acid gas purification treatment apparatus according to claim 1, wherein: the spiral direction of the first spiral blade (613) is opposite to the spiral direction of the airflow; the spiral direction of the drying cotton piece (623) is opposite to the spiral direction of the air flow.
3. The acid gas purification treatment apparatus according to claim 1, wherein: an electrostatic dust removal device (7) is arranged in the air inlet pipe (1), the electrostatic dust removal device (7) comprises an electrostatic dust removal box (71) arranged on the air inlet pipe (1), and a positive electrode plate (72) and a negative electrode plate (73) which are arranged in the electrostatic dust removal box (71), and the positive electrode plate (72) and the negative electrode plate (73) are arranged in parallel with the running direction of the airflow;
the lower end of the electrostatic dust removal box (71) is provided with a dust discharge port (74).
4. The acid gas purification treatment apparatus according to claim 1, wherein: the water treatment device (2) comprises a first water treatment section (21) and a second water treatment section (22), the first water treatment section (21) comprises a first water tank (211), a spiral coil (212) communicated with an air inlet of the first water tank (211) and a first air outlet (213) formed in the spiral coil (212), and the first water tank (211) is communicated with a liquid inlet pipe (214) and a liquid outlet pipe (215);
the second water treatment section (22) comprises a second water tank (221) communicated with the first water tank (211) through a vent pipe (8) and a spray head (222) arranged in the second water tank (221).
5. The acid gas purification treatment apparatus according to claim 1, wherein: the photo-oxidation catalytic device (3) comprises a treatment box body (31), a UV lamp tube (32) arranged in the treatment box body (31) and a guide plate (33) fixedly connected in the treatment box body (31).
6. The acid gas purification treatment apparatus according to claim 4, wherein: a plurality of flow increasing fans (216) are arranged in the first water tank (211).
7. The acid gas purification treatment apparatus according to claim 3, wherein: and an air hammer (9) is arranged on the outer side of the electrostatic dust removal box (71).
8. The acid gas purification treatment process according to any one of claims 1 to 7, wherein: the method comprises the following steps:
step1, introducing the waste gas into the gas inlet pipe (1), and performing electrostatic adsorption on particle impurities in the waste gas;
step2, performing water filtration treatment on the waste gas after electrostatic adsorption;
step3, enabling the waste gas after water filtration treatment to enter dehumidification equipment, and removing water molecules in the waste gas;
step4, carrying out photo-oxidation treatment on the dried exhaust gas.
9. The acid gas purification treatment process according to claim 8, wherein: the water filtration treatment of the exhaust gas in Step2 is divided into two water treatment stages.
10. The acid gas purification treatment process according to claim 8, wherein: in Step4, the exhaust gas is subjected to photo-oxidation treatment and activated carbon adsorption.
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| CN201911225098.XA CN110898591B (en) | 2019-12-04 | 2019-12-04 | Acid gas purification treatment equipment and treatment process |
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| CN201911225098.XA CN110898591B (en) | 2019-12-04 | 2019-12-04 | Acid gas purification treatment equipment and treatment process |
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| CN110898591B (en) | 2022-03-15 |
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