CN105582777A - Cyclone dust removal and desulfurization device and working method thereof - Google Patents
Cyclone dust removal and desulfurization device and working method thereof Download PDFInfo
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- CN105582777A CN105582777A CN201610137691.9A CN201610137691A CN105582777A CN 105582777 A CN105582777 A CN 105582777A CN 201610137691 A CN201610137691 A CN 201610137691A CN 105582777 A CN105582777 A CN 105582777A
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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
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
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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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
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- 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
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/10—Homopolymers or copolymers of methacrylic acid esters
- C08L33/12—Homopolymers or copolymers of methyl methacrylate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
The invention discloses a cyclone dust removal and desulfurization device and a working method thereof. The device comprises a gas inlet pipe, a cyclone dust removal device, a rinsing device, a drainage pipe, a gas-guide pipe, a desulfurization tower, an alkali liquor conveying device, an exhaust pipe and a control system; the gas inlet pipe conveys waste gas to the cyclone dust removal device, the rinsing device conveys rinsing water into the cyclone dust removal device, dust in the waste gas is removed in the cyclone dust removal device, the remaining waste gas enters the bottom of the desulfurization tower through the gas-guide pipe, the alkali liquor conveying device continuously conveys alkali liquor at the bottom of the desulfurization tower to the top of the desulfurization tower, sulfur dioxide contained in the waste gas is absorbed by the alkali liquor in the desulfurization tower, the remaining clean air is exhausted out of the exhaust pipe, and rinsed waste water containing mud is discharged from the drainage pipe. According to the cyclone dust removal and desulfurization device and the working method thereof, the dust removal and desulfurization functions are achieved, the dust removal and desulfurization effects are good, the efficiency is high, the energy consumption is low, the treatment capacity is large, and the device is suitable for industrial and mining enterprises which need to exhaust the waste gas containing sulfur to use.
Description
Technical field
The invention belongs to waste gas purification apparatus field, be specifically related to a kind of cyclone dust removal desulfurizer and method of work thereof.
Background technology
In recent years, a lot of cities of China and surrounding area gray haze thereof take place frequently, and on January 29th, 2013, Environmental Protection Department was circulated a notice of,China Middle Eastern is affected by haze weather, multiple urban air-quality serious pollutions or severe contamination, and national gray haze area is approximately2000000 square kilometres, gray haze has become the great atmospheric environment problem that puzzlement resident produces and lives at present, and gray haze is a kind ofWeather phenomenon, refers to that a large amount of imperceptible dry grits etc. swim aloft equably, make horizontal visibility be less than the sky of 10 kmsGas research of chaotic phenomenon, and the reduction of atmospheric visibility is mainly that absorption and the scattering of particle to light causes, at particle particleIn, the photoextinction of the dust in industrial smoke is the strongest, and much scientific researches show, and the dust in industrial smoke is to cause cityThe key factor of atmosphere acid rain, photochemical fog and gray haze, can produce serious harm to health, can produce important to weatherImpact.
Existing improvement technology
Along with industrial high speed development, the consumption of the energy, increasing smoke exhaust is discharged in atmosphere, the dust in industrial smokeThe control of particle mainly realizes by cleaner, and the cleaner of existing routine can not effectively be removed dust, thereforeMust carry out technology upgrading, further improve the efficiency of dust collection of existing deduster, the discharge of corresponding minimizing dust.
1, fiber bag precipitator
Fiber bag precipitator is that a kind of dry type dust filtration device & filter bag adopts the filter cloth of weaving or nonwoven felt to become, and utilizes fabricFiltration dusty gas is filtered, when dusty gas enters sack cleaner ground, large, the heavy dust of particle,Because the effect of gravity settles down, fall into ash bucket, contain compared with the gas of fine dusts in the time passing through the hole of filtrate dust quiltDetention, is purified gas, is deposited on the dust on filtrate, can under the effect of mechanical oscillation, come off from filter material surface, fallsEnter in ash bucket.
Advantage: remove big dust particle efficiency high, simple in structure, attended operation is convenient, cheap, to Dust Characteristics notSensitivity, is not subject to dust and Resistance Influence.
Shortcoming: the material of most of filtrates is all that easy firing, friction easily produce and gather static, process burning gases orWhen high-temperature gas, usually there are imperfect combustion dust, Mars, have burning and damp etc. to enter among system, existBurn, the harm of explosion accident.
2, cyclone dust collector
Cyclone dust collectors are the centrifugal force that utilizes swirling eddy to produce, the dust arrester that grit is separated from dusty gas, whenWhen dusty gas enters cyclone dust collectors by air inlet, air-flow becomes circular motion from rectilinear motion, the overwhelming majority of swirling eddyDownward twist along deduster inwall, flow towards cone, conventionally claim that this is outer rotational gas flow, dusty gas is in rotary courseProduce centrifugal force, the powder dust particle that relative density is greater than to gas gets rid of to deduster wall, once powder dust particle and deduster wallContact, just loses radial inertial force and momentum and gravity under relying on falls along wall, enters ash discharging hole.
Advantage: simple in structure, small volume, does not need special auxiliary device, and cost is lower, and resistance is medium, in deviceMovement-less part, operating maintenance is convenient.
Shortcoming: trapping fine particle efficiency is not high.
3, electrostatic precipitator
The operation principle of electrostatic precipitator is to utilize highfield corona discharge electrode electric discharge ionized gas, makes particle in dust laden air at electric field forceEffect under and flow separation, be adsorbed onto dust collecting electrode, reach the object of purification, negative pole is made up of plain conductor, is corona discharge electrode,Positive pole is made up of metallic plate, is dust collecting electrode.
Advantage: drag losses is little, consumes energy relatively less, and efficiency of dust collection is high, and smoke treatment amount is large, and can be used for flue gas temperatureSpend high, the occasion that pressure is large.
Shortcoming: dust specific resistance be there are certain requirements, and more too low than resistance, grit is difficult to remain on collecting electrode, causesIt returns to air-flow, and than too high in resistance, the grit electric charge that arrives collecting electrode is difficult for emitting, and forms voltage gradient meeting between knoisphereProduce partial breakdown and electric discharge phenomena, these situations all can cause efficiency of dust collection to decline, and once investment is larger, comparison in equipment complexity,The allocation and transportation of requirement equipment and installation and maintenance management level are high.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of cyclone dust removal desulfurizer, comprising: air inlet pipe 1, revolveStream dust arrester 2, overflow cascade washers 3, drainpipe 4, wireway 5, desulfurizing tower 6, alkali lye conveying device 7, blast pipe 8,Control system 9; Described cyclone dust catcher 2 one upper lateral parts are provided with air inlet 1 and overflow cascade washers 3,2 ends of cyclone dust catcherPortion is provided with drainpipe 4, and cyclone dust catcher 2 top center are connected by wireway 5 with desulfurizing tower 6 bottom one sides, described de-Sulphur tower 6 tops are provided with blast pipe 8, and desulfurizing tower 6 one side lower parts are provided with alkali lye conveying device 7, and desulfurizing tower 8 bottoms are also provided with controlSystem 9 processed; Overflow cascade washers 3 is connected with control system 9 wires.
Further, described cyclone dust catcher 2, comprising: the 2-1 of spin chamber, underflow opening 2-2, reservoir chamber 2-3, gas collectionPipe 2-4, atomizing water nozzle 2-5; The described 2-1 of spin chamber vertical display, 2-1 top, spin chamber is cylindrical hollow configuration, revolvesStream 2-1 bottom, chamber is conical structure, and the 2-1 of spin chamber cylindrical end and conical section Length Ratio are 1:1.52～1:2.52; Described underflowMouth 2-2 is cylindrical hollow configuration, underflow opening 2-2 upper end and the 2-1 of spin chamber conical section bottom seamless welding, underflow opening 2-2Lower end connects and is connected with reservoir chamber 2-3; Described reservoir chamber 2-3 is positioned at underflow opening 2-2 bottom, and reservoir chamber 2-3 is cylindrical knotStructure; Described discharge 2-4 is positioned at 2-1 top, spin chamber, and discharge 2-4 center overlaps with spin chamber's 2-1 top center, collectionTracheae 2-4 diameter is 0.19～0.59 times of the 2-1 of spin chamber cylindrical section diameter, and push up apart from the 2-1 of spin chamber discharge 2-4 lower end20.22cm～the 30.36cm of portion; Described atomizing water nozzle 2-5 is positioned at discharge 2-4 surrounding, and the quantity of atomizing water nozzle 2-5 is4～16, atomizing water nozzle 2-5 is connected with overflow cascade washers 3 pipelines.
Further, described desulfurizing tower 6, comprising: tower body 6-1, supporting plate 6-2, polymer carrier 6-3, fluid reservoir 6-4, sulfur dioxide concentration sensor 6-5; Described tower body 6-1 upper end is conical structure, and tower body 6-1 bottom is cylindrical structural,Tower body 6-1 conical section and cylindrical section Length Ratio are 1:4.58～1:8.45; Described supporting plate 6-2 is horizontally disposed in tower body 6-1 insideCylindrical section, supporting plate 6-2 is disc-shaped structure, supporting plate 6-2 outward flange and tower body 6-1 inwall seamless welding, supporting plate 6-2On plate face, be evenly distributed with the through hole of diameter 0.51cm～1.56cm, the quantity of supporting plate 6-2 is 2, bottom supporting plate 6-2Distance apart from tower body 6-1 bottom is 20.56cm～30.45cm, and top supporting plate 6-2 apart from the distance at tower body 6-1 top is50.48cm～90.48cm; Described polymer carrier 6-3 is the prefabricated component of macromolecular material press mold moulding, polymer carrier 6-3The tower body 6-1 inside of uniform filling between two supporting plate 6-2; Described fluid reservoir 6-4 is positioned at tower body 6-1 bottom, liquid storageChamber 6-4 is cylindrical hollow configuration, interpenetrates and edge seamless welding in fluid reservoir 6-4 top and tower body 6-1 bottom; DescribedSulfur dioxide concentration sensor 6-5 is positioned on the one side inwall of tower body 6-1 cylindrical section top, sulfur dioxide concentration sensor 6-5 topPortion is 5.89cm～10.48cm apart from the distance on tower body 6-1 cylindrical section top, sulfur dioxide concentration sensor 6-5 and control systemSystem 9 connects by wire.
Further, described polymer carrier 6-3 inside is alveolate texture, and honeycomb hole diameter is 5.59nm～10.48nm,The size of polymer carrier 6-3 is 0.15cm～1.59cm, and polymer carrier 6-3 comprises: astrosphere 6-3-1, columnar protrusions6-3-2; Described astrosphere 6-3-1 is positioned at polymer carrier 6-3 middle part, and astrosphere 6-3-1 is regular chondritic; DescribedColumnar protrusions 6-3-2 is positioned at astrosphere 6-3-1 spherome surface, and columnar protrusions 6-3-2 is vertical with astrosphere 6-1-3 spherome surfaceConnected column construction, columnar protrusions 6-3-2 is arranged symmetrically with along above-below direction all around on astrosphere 6-3-1 surface, eachColumnar protrusions 6-3-2 quantity on polymer carrier 6-3 is 4～16, height and the astrosphere of columnar protrusions 6-3-2 cylinderThe ratio of 6-3-1 diameter is 0.55:1～0.87:1.
Further, described polymer carrier 6-3 is by macromolecular material moulded section, the constituent of polymer carrier 6-3As follows with manufacture process:
One, the constituent of polymer carrier 6-3 and manufacture process, meter by weight, comprises following steps:
The 1st step, in reactor, to add electrical conductivity be 2000～3500 parts of the ultra-pure waters of 0.01 μ S/cm～0.05 μ S/cm, startsAgitator in reactor, rotating speed is 40rpm～60rpm, starts heat pump, makes reactor temperature rise to 55 DEG C～60 DEG C;Add successively 20～30 parts of methyl-rhodanides, 1～8 part of methyl-isorhodanate, 1～8 part of positive methyl valerate, be stirred to completelyDissolve, regulating pH value is 5～8.0, and agitator speed is adjusted to 80rpm～120rpm, and temperature is 55 DEG C～60 DEG C, esterificationReact 3～8 hours;
The 2nd step, get 1～8 part of 1～8 part of methyl abietate, methyl acetoacetate and pulverize, powder diameter is 150～250 orders;Add 200～400 parts of nanoscale boric acid rhodiums to mix, be laid in pallet, tiling thickness is 20.34mm～40.45mm,Employing dosage is alpha ray irradiation 15min～30min that 2.0kGy～3.0kGy, energy are 3.5MeV～5.5MeV;
The 3rd step, be dissolved in 15～30 parts of the methyl benzoates that concentration is 25ppm～180ppm through the mixed-powder of the 2nd step processing,Add reactor, agitator speed is 55rpm～65rpm, and temperature is 80 DEG C～90 DEG C, starts vavuum pump and makes the true of reactorReach-0.01MPa of reciprocal of duty cycle～-0.02MPa, keeps this state response 2h～8h; Pressure release also passes into stink damp, makes reactorInternal pressure is 0.002～0.01MPa, and insulation leaves standstill 1h～2h; Agitator speed is promoted to 90rpm～110rpm afterwards, withTime reactor pressure release to 0MPa; After adding successively 10～20 parts of 1～20 part of methyl acrylates, methyl stearate to dissolve completely,Add 10～25 parts of crosslinking agents to be uniformly mixed, the hydrophilic lipophilic balance that makes reactor solution is 4.5～6.0, and insulation leaves standstill1h～2h；
The 4th step, in the time that agitator speed is 180rpm～210rpm, add successively 1～8 part of repefral, just oneself1～8 part of 1～8 part of acid methyl esters and dimethyl sulfite, promote reactor pressure, makes it reach 0.01MPa～0.20MPa,Temperature is 110 DEG C～120 DEG C, polymerisation 2h～10h; After having reacted, reacting kettle inner pressure is down to 0MPa, is cooled to30 DEG C～40 DEG C, discharging, enters molding press and can make polymer carrier 6-3;
Described crosslinking agent is dimethyl succinate;
The particle diameter of described nanoscale boric acid rhodium is 30nm～130nm.
Further, the invention also discloses a kind of method of work of cyclone dust removal desulfurizer, comprise following step:The 1st step, control system 9 are controlled air pump and are started, and make air pump produce the pressure of 0.01MPa～0.02MPa, waste gas viaAir inlet pipe 1 tangentially enters at a high speed cyclone dust catcher 2 tops, simultaneously control system 9 with the speed of 2m/s～15m/sThe shower water that control liquid distribution 3 is 0.1MPa～0.2MPa by pressure is delivered to cyclone dust catcher 2 tops, and in atomizationUnder the effect of (operating) water nozzle 2-5, form the ejection of 180nm～210nm droplet, shower water dispenses on the 2-1 of spin chamber inwall uniformly,Waste gas enters after the 2-1 of spin chamber, and under the effect of centrifugal force and gravity, the inwall that the dust in waste gas is close to the 2-1 of spin chamber is highSpeed rotation, and atomizing spray water on the 2-1 of spin chamber inwall is combined, and is downward through underflow opening 2-2 together enters storage along wallHydroecium 2-3, finally discharges from drainpipe 4, and the gas of separating dust rises from the 2-1 of spin chamber inside center, last edgeDischarge 2-4 enters wireway 5;
The 2nd step, the gas that enters the preliminary treatment of wireway 5 enter desulfurizing tower 6 inside from desulfurizing tower 6 lower end one sides, control simultaneouslySystem 9 is controlled NaOH solution that alkali lye conveying device 7 is 5%～25% by mass concentration and is delivered to constantly desulfurizing tower 6 and pushes upPortion, the gas of preliminary treatment from bottom to top successively by supporting plate 6-2 and polymer carrier 6-3 and with mobile from top to bottom alkaliThe abundant haptoreaction of liquid, the clean gas after end reaction is from blast pipe 8 removal systems;
The 3rd step, system sulfur dioxide concentration sensor in service 6-5 are to the sulfur dioxide concentration Real-Time Monitoring in desulfurizing tower 6, when twoSulfur oxide concentration sensor 6-5 detects when the sulfur dioxide concentration in desulfurizing tower 6 exceedes setting, sulfur dioxide concentration sensingDevice 6-5 produces signal to control system 9, and control system 9 is controlled the air pump of air inlet pipe 1, makes it reduce charge flow rate, simultaneouslyControl system 9 is controlled liquid distribution 3 adherence pressures increases water yield, and control system 9 is controlled alkali lye conveying device 7 to be increasedThe flow of NaOH solution, and produce audio signal remind keeper note; When sulfur dioxide concentration sensor, 6-5 detects de-When sulfur dioxide concentration in sulphur tower 6 returns to normal range (NR), control system 9 is controlled the air pump of air inlet pipe 1, make its increase intoThroughput, while control system 9 is controlled liquid distribution 3 and is recovered normal pressure value and normal water yield, and control system 9 is controlled alkaliLiquid conveying device 7 returns to normal output flow, and produces green light index signal and show that system is normal.
The disclosed a kind of cyclone dust removal desulfurizer of patent of the present invention and method of work thereof, its advantage is:
(1) this device adopts vortex method dedusting, and efficiency of dust collection is high;
(2) this device adopts macromolecular material as desulfurizing tower filler, and desulfurized effect is good;
(3) integral device compactness, floor space is little, easy to maintenance;
A kind of cyclone dust removal desulfurizer of the present invention and method of work thereof, have the effect of dedusting and desulfurization concurrently, dust-removal and desulfurizing effectGood, efficiency is high, and energy consumption is low, and treating capacity is large, is applicable to needing the industrial and mining enterprises of discharge dust-laden sulphur-containing exhaust gas to use.
Brief description of the drawings
Fig. 1 is a kind of cyclone dust removal desulfurizer schematic diagram described in the present invention.
Fig. 2 is the cyclone dust catcher schematic diagram described in the present invention.
Fig. 3 is the desulfurizing tower schematic diagram described in the present invention.
Fig. 4 is the polymer carrier schematic diagram described in the present invention.
Fig. 5 polymer carrier of the present invention and reference examples sulfur dioxide absorption attenuation rate comparison diagram.
In above Fig. 1～Fig. 4, air inlet pipe 1, cyclone dust catcher 2, the 2-1 of spin chamber, underflow opening 2-2, reservoir chamber 2-3, discharge 2-4, atomizing water nozzle 2-5, overflow cascade washers 3, drainpipe 4, wireway 5, desulfurizing tower 6, tower body 6-1,Supporting plate 6-2, polymer carrier 6-3, astrosphere 6-3-1, columnar protrusions 6-3-2, fluid reservoir 6-4, sulfur dioxide concentration passesSensor 6-5, alkali lye conveying device 7, blast pipe 8, control system 9.
Detailed description of the invention
Below in conjunction with accompanying drawing and example, a kind of cyclone dust removal desulfurizer provided by the invention and method of work thereof are entered to oneStep explanation.
As shown in Figure 1, be a kind of cyclone dust removal desulfurizer schematic diagram provided by the invention. In figure, find out, comprising: enterTracheae 1, cyclone dust catcher 2, overflow cascade washers 3, drainpipe 4, wireway 5, desulfurizing tower 6, alkali lye conveying device 7,Blast pipe 8, control system 9; Described cyclone dust catcher 2 one upper lateral parts are provided with air inlet 1 and overflow cascade washers 3, and eddy flow removesDirt device 2 bottoms are provided with drainpipe 4, and cyclone dust catcher 2 top center and desulfurizing tower 6 bottom one sides connect by wireway 5Connect, described desulfurizing tower 6 tops are provided with blast pipe 8, and desulfurizing tower 6 one side lower parts are provided with alkali lye conveying device 7, desulfurizing tower 8 timesPortion is also provided with control system 9; Overflow cascade washers 3 is connected with control system 9 wires.
As shown in Figure 2, be the cyclone dust catcher schematic diagram described in the present invention. In Fig. 2 or Fig. 1, find out, described in revolveStream dust arrester 2, comprising: the 2-1 of spin chamber, underflow opening 2-2, reservoir chamber 2-3, discharge 2-4, atomizing water nozzle 2-5;The described 2-1 of spin chamber vertical display, 2-1 top, spin chamber is cylindrical hollow configuration, 2-1 bottom, spin chamber is conical knotStructure, the 2-1 of spin chamber cylindrical end and conical section Length Ratio are 1:1.52～1:2.52; Described underflow opening 2-2 is cylindrical hollow configuration,Underflow opening 2-2 upper end and the 2-1 of spin chamber conical section bottom seamless welding, underflow opening 2-2 lower end connects and is connected with reservoir chamber 2-3;Described reservoir chamber 2-3 is positioned at underflow opening 2-2 bottom, and reservoir chamber 2-3 is cylindrical structural; Described discharge 2-4 is positioned at eddy flow2-1 top, chamber, discharge 2-4 center overlaps with spin chamber's 2-1 top center, and discharge 2-4 diameter is the 2-1 of spin chamber circle0.19～0.59 times of shell of column diameter, discharge 2-4 lower end is apart from 2-1 top, spin chamber 20.22cm～30.36cm; Described mistChange (operating) water nozzle 2-5 and be positioned at discharge 2-4 surrounding, the quantity of atomizing water nozzle 2-5 is 4～16, atomizing water nozzle 2-5 withOverflow cascade washers 3 pipelines connect.
As shown in Figure 3, be the desulfurizing tower schematic diagram described in the present invention, in Fig. 3 or Fig. 1, find out, described desulfurizing tower 6,Comprise: tower body 6-1, supporting plate 6-2, polymer carrier 6-3, fluid reservoir 6-4, sulfur dioxide concentration sensor 6-5; DescribedTower body 6-1 upper end is conical structure, and tower body 6-1 bottom is cylindrical structural, tower body 6-1 conical section and cylindrical section Length RatioFor 1:4.58～1:8.45; Described supporting plate 6-2 is horizontally disposed at tower body 6-1 inner circular shell of column, and supporting plate 6-2 is disc knotStructure, supporting plate 6-2 outward flange and tower body 6-1 inwall seamless welding, be evenly distributed with diameter on supporting plate 6-2 plate faceThe through hole of 0.51cm～1.56cm, the quantity of supporting plate 6-2 is 2, bottom supporting plate 6-2 is apart from the distance of tower body 6-1 bottomFrom being 20.56cm～30.45cm, top supporting plate 6-2 is 50.48cm～90.48cm apart from the distance at tower body 6-1 top; InstituteState the prefabricated component that polymer carrier 6-3 is the moulding of macromolecular material press mold, polymer carrier 6-3 uniform filling is at two supporting platesTower body 6-1 inside between 6-2; Described fluid reservoir 6-4 is positioned at tower body 6-1 bottom, and fluid reservoir 6-4 is cylindrical hollow configuration,Interpenetrate and edge seamless welding in fluid reservoir 6-4 top and tower body 6-1 bottom; Described sulfur dioxide concentration sensor 6-5 positionOn the one side inwall of tower body 6-1 cylindrical section top, sulfur dioxide concentration sensor 6-5 distance from top tower body 6-1 cylindrical section topDistance be 5.89cm～10.48cm, sulfur dioxide concentration sensor 6-5 is connected by wire with control system 9.
As shown in Figure 4, be the polymer carrier schematic diagram described in the present invention. In Fig. 4, find out described polymer carrier6-3 inside is alveolate texture, and honeycomb hole diameter is 5.59nm～10.48nm, and the size of polymer carrier 6-3 is0.15cm～1.59cm, polymer carrier 6-3 comprises: astrosphere 6-3-1, columnar protrusions 6-3-2; Described astrosphere 6-3-1Be positioned at polymer carrier 6-3 middle part, astrosphere 6-3-1 is regular chondritic; Described columnar protrusions 6-3-2 is positioned at centerBall 6-3-1 spherome surface, columnar protrusions 6-3-2 is and the vertical column construction being connected of astrosphere 6-1-3 spherome surface that column is prominentPlay 6-3-2 and be arranged symmetrically with along above-below direction all around on astrosphere 6-3-1 surface, the column on each polymer carrier 6-3Projection 6-3-2 quantity is 4～16, the height of columnar protrusions 6-3-2 cylinder and the ratio of astrosphere 6-3-1 diameter be 0.55:1～0.87:1。
The course of work of a kind of cyclone dust removal desulfurizer of the present invention and method of work thereof is:
The 1st step, control system 9 are controlled air pump and are started, and make air pump produce the pressure of 0.01MPa～0.02MPa, waste gas viaAir inlet pipe 1 tangentially enters at a high speed cyclone dust catcher 2 tops, simultaneously control system 9 with the speed of 2m/s～15m/sThe shower water that control liquid distribution 3 is 0.1MPa～0.2MPa by pressure is delivered to cyclone dust catcher 2 tops, and in atomizationUnder the effect of (operating) water nozzle 2-5, form the ejection of 180nm～210nm droplet, shower water dispenses on the 2-1 of spin chamber inwall uniformly,Waste gas enters after the 2-1 of spin chamber, and under the effect of centrifugal force and gravity, the inwall that the dust in waste gas is close to the 2-1 of spin chamber is highSpeed rotation, and atomizing spray water on the 2-1 of spin chamber inwall is combined, and is downward through underflow opening 2-2 together enters storage along wallHydroecium 2-3, finally discharges from drainpipe 4, and the gas of separating dust rises from the 2-1 of spin chamber inside center, last edgeDischarge 2-4 enters wireway 5;
The 2nd step, the gas that enters the preliminary treatment of wireway 5 enter desulfurizing tower 6 inside from desulfurizing tower 6 lower end one sides, control simultaneouslySystem 9 is controlled NaOH solution that alkali lye conveying device 7 is 5%～25% by mass concentration and is delivered to constantly desulfurizing tower 6 and pushes upPortion, the gas of preliminary treatment from bottom to top successively by supporting plate 6-2 and polymer carrier 6-3 and with mobile from top to bottom alkaliThe abundant haptoreaction of liquid, the clean gas after end reaction is from blast pipe 8 removal systems;
The 3rd step, system sulfur dioxide concentration sensor in service 6-5 are to the sulfur dioxide concentration Real-Time Monitoring in desulfurizing tower 6, when twoSulfur oxide concentration sensor 6-5 detects when the sulfur dioxide concentration in desulfurizing tower 6 exceedes setting, sulfur dioxide concentration sensingDevice 6-5 produces signal to control system 9, and control system 9 is controlled the air pump of air inlet pipe 1, makes it reduce charge flow rate, simultaneouslyControl system 9 is controlled liquid distribution 3 adherence pressures increases water yield, and control system 9 is controlled alkali lye conveying device 7 to be increasedThe flow of NaOH solution, and produce audio signal remind keeper note; When sulfur dioxide concentration sensor, 6-5 detects de-When sulfur dioxide concentration in sulphur tower 6 returns to normal range (NR), control system 9 is controlled the air pump of air inlet pipe 1, make its increase intoThroughput, while control system 9 is controlled liquid distribution 3 and is recovered normal pressure value and normal water yield, and control system 9 is controlled alkaliLiquid conveying device 7 returns to normal output flow, and produces green light index signal and show that system is normal.
A kind of cyclone dust removal desulfurizer of the present invention and method of work thereof, have the effect of dedusting and desulfurization concurrently, dedustingDesulfurized effect is good, and efficiency is high, and energy consumption is low, and treating capacity is large, is applicable to needing the industrial and mining enterprises of discharge dust-laden sulphur-containing exhaust gas to use.
Be below the embodiment of the manufacture process of polymer carrier 6-3 of the present invention, embodiment is in order to further illustrate thisThe content of invention, but should not be construed as limitation of the present invention. Without departing from the spirit and substance of the case in the present invention, to thisThe amendment that bright method, step or condition are done and replacement, all belong to scope of the present invention.
If do not specialize, the conventional means that in embodiment, technological means used is well known to those skilled in the art.
Embodiment 1
Meter by weight, and manufacture polymer carrier 6-3 of the present invention according to following steps:
The 1st step, in reactor, to add electrical conductivity be 2000 parts of the ultra-pure waters of 0.01 μ S/cm, starts agitator in reactor, turnsSpeed is 40rpm, starts heat pump, makes reactor temperature rise to 55 DEG C; Add successively 20 parts of methyl-rhodanides, different sulphur1 part of methyl-cyanate, 1 part of positive methyl valerate, be stirred to completely and dissolve, and regulating pH value is 5.0, and agitator speed is adjusted to80rpm, temperature is 55 DEG C, esterification 3 hours;
The 2nd step, get 1 part of methyl abietate, 1 part of pulverizing of methyl acetoacetate, powder diameter is 150 orders; Add nanoscale boric acid200 parts of rhodiums mix, and are laid in pallet, and tiling thickness is 20.34mm, and employing dosage is that 2.0kGy, energy areThe alpha ray irradiation 15min of 3.5MeV;
The 3rd step, be dissolved in 15 parts of the methyl benzoates that concentration is 25ppm through the mixed-powder of the 2nd step processing, add reactor,Agitator speed is 55rpm, and temperature is 80 DEG C, starts vavuum pump and makes reach-0.01MPa of the vacuum of reactor, keeps this shapeState reaction 2h; Pressure release also passes into stink damp, and making reacting kettle inner pressure is 0.002MPa, and insulation leaves standstill 1h; Agitator afterwardsRotating speed is promoted to 90rpm, and the pressure release of simultaneous reactions still is to 0MPa; Add successively 1 part of methyl acrylate, 10 parts of methyl stearatesAfter dissolving completely, add 10 parts of crosslinking agents to be uniformly mixed, making the hydrophilic lipophilic balance of reactor solution is 4.5, is incubated quietPut 1h;
The 4th step, in the time that agitator speed is 180rpm, add successively 1 part of repefral, 1 part of methyl hexyl and1 part of dimethyl sulfite, promotes reactor pressure, makes it reach 0.01MPa, and temperature is 110 DEG C, polymerisation 2h; InsteadAfter should completing, reacting kettle inner pressure is down to 0MPa, is cooled to 30 DEG C, discharging, enters molding press and can make polymer carrier 6-3；
Described crosslinking agent is dimethyl succinate;
The particle diameter of described nanoscale boric acid rhodium is 30nm.
Embodiment 2
Manufacture polymer carrier 6-3 of the present invention according to following steps:
The 1st step, in reactor, to add electrical conductivity be 3500 parts of the ultra-pure waters of 0.05 μ S/cm, starts agitator in reactor, turnsSpeed is 60rpm, starts heat pump, makes reactor temperature rise to 60 DEG C; Add successively 30 parts of methyl-rhodanides, different sulphur8 parts of methyl-cyanates, 8 parts of positive methyl valerates, be stirred to completely and dissolve, and regulating pH value is 8.0, and agitator speed is adjusted to120rpm, temperature is 60 DEG C, esterification 8 hours;
The 2nd step, get 8 parts of methyl abietates, 8 parts of pulverizing of methyl acetoacetate, powder diameter is 250 orders; Add nanoscale boric acid400 parts of rhodiums mix, and are laid in pallet, and tiling thickness is 40.45mm, and employing dosage is that 3.0kGy, energy areThe alpha ray irradiation 30min of 5.5MeV;
The 3rd step, be dissolved in 30 parts of the methyl benzoates that concentration is 180ppm through the mixed-powder of the 2nd step processing, add reactor,Agitator speed is 65rpm, and temperature is 90 DEG C, starts vavuum pump and makes reach-0.02MPa of the vacuum of reactor, keeps this shapeState reaction 8h; Pressure release also passes into stink damp, and making reacting kettle inner pressure is 0.01MPa, and insulation leaves standstill 2h; Agitator afterwardsRotating speed is promoted to 110rpm, and the pressure release of simultaneous reactions still is to 0MPa; Add successively 20 parts of methyl acrylates, methyl stearate 20Part adds 25 parts of crosslinking agents to be uniformly mixed after dissolving completely, and the hydrophilic lipophilic balance that makes reactor solution is 6.0, insulationLeave standstill 2h;
The 4th step, in the time that agitator speed is 210rpm, add successively 8 parts of repefrals, 8 parts of methyl hexyls and8 parts of dimethyl sulfites, promote reactor pressure, make it reach 0.20MPa, and temperature is 120 DEG C, polymerisation 10h;After having reacted, reacting kettle inner pressure is down to 0MPa, is cooled to 40 DEG C, discharging, enters molding press and can make polymer carrier6-3；
Described crosslinking agent is dimethyl succinate;
The particle diameter of described nanoscale boric acid rhodium is 130nm.
Embodiment 3
Manufacture polymer carrier 6-3 of the present invention according to following steps:
The 1st step, in reactor, to add electrical conductivity be 2500 parts of the ultra-pure waters of 0.02 μ S/cm, starts agitator in reactor, turnsSpeed is 50rpm, starts heat pump, makes reactor temperature rise to 56 DEG C; Add successively 25 parts of methyl-rhodanides, different sulphur4 parts of methyl-cyanates, 4 parts of positive methyl valerates, be stirred to completely and dissolve, and regulating pH value is 6.0, and agitator speed is adjusted to90rpm, temperature is 56 DEG C, esterification 5 hours;
The 2nd step, get 4 parts of methyl abietates, 4 parts of pulverizing of methyl acetoacetate, powder diameter is 200 orders; Add nanoscale boric acid300 parts of rhodiums mix, and are laid in pallet, and tiling thickness is 30mm, and employing dosage is that 2.5kGy, energy areThe alpha ray irradiation 25min of 4.0MeV;
The 3rd step, to be dissolved in concentration through the mixed-powder of the 2nd step processing be in 20 parts of 28ppm methyl benzoates, adds reactor, stirsMixing device rotating speed is 60rpm, and temperature is 85 DEG C, starts vavuum pump and makes reach-0.015MPa of the vacuum of reactor, keeps this shapeState reaction 5h; Pressure release also passes into stink damp, and making reacting kettle inner pressure is 0.008MPa, and insulation leaves standstill 2h; Agitator afterwardsRotating speed is promoted to 100rpm, and the pressure release of simultaneous reactions still is to 0MPa; Add successively 10 parts of methyl acrylates, methyl stearate 15Part adds 15 parts of crosslinking agents to be uniformly mixed after dissolving completely, and the hydrophilic lipophilic balance that makes reactor solution is 5.0, insulationLeave standstill 2h;
The 4th step, in the time that agitator speed is 190rpm, add successively 4 parts of repefrals, 4 parts of methyl hexyls and4 parts of dimethyl sulfites, promote reactor pressure, make it reach 0.015MPa, and temperature is 115 DEG C, polymerisation 5h;After having reacted, reacting kettle inner pressure is down to 0MPa, is cooled to 35 DEG C, discharging, enters molding press and can make polymer carrier6-3；
Described crosslinking agent is dimethyl succinate;
The particle diameter of described nanoscale boric acid rhodium is 80nm.
Reference examples
Reference examples is that the polymer carrier of commercially available certain brand is for the absorption of sulfur dioxide.
Embodiment 4
Polymer carrier described in polymer carrier 6-3 and the reference examples that embodiment 1～3 is prepared is for the absorption of sulfur dioxideContrast on effect. Unit Weight after contrast, service time, absorption attenuation rate, adsorption efficiency are added up.
The parameter difference that table 1 is suction filler described in embodiment 1～3 and reference examples when except sulfur dioxide operation, from table1 is visible, polymer carrier 6-3 of the present invention, and its Unit Weight, service time, absorption attenuation rate, adsorption efficiency are equalThe product of producing higher than prior art.
In addition as shown in Figure 5, be polymer carrier of the present invention and the contrast of reference examples sulfur dioxide absorption attenuation rate.In figure, find out, embodiment 1～3 polymer carrier 6-3 used, can keep efficient adsorption effect for a long time, and sulfur dioxide is inhaledAttached attenuation rate is all significantly better than existing product.
Claims (6)
1. a cyclone dust removal desulfurizer, comprising: air inlet pipe (1), cyclone dust catcher (2), overflow cascade washers (3), drainingPipe (4), wireway (5), desulfurizing tower (6), alkali lye conveying device (7), blast pipe (8), control system (9); Its spyLevy and be: described cyclone dust catcher (2) one upper lateral parts are provided with air inlet (1) and overflow cascade washers (3), cyclone dust catcher(2) bottom is provided with drainpipe (4), and cyclone dust catcher (2) top center and desulfurizing tower (6) bottom one side are by air guidePipe (5) connects, and described desulfurizing tower (6) top is provided with blast pipe (8), and desulfurizing tower (6) one side lower parts are provided with alkali lye and carryDevice (7), desulfurizing tower (8) bottom is also provided with control system (9); Overflow cascade washers (3) connects with control system (9) wireConnect.
2. a kind of cyclone dust removal desulfurizer according to claim 1, is characterized in that: described cyclone dust catcher (2),Comprise: spin chamber (2-1), underflow opening (2-2), reservoir chamber (2-3), discharge (2-4), atomizing water nozzle (2-5); InstituteState spin chamber (2-1) vertical display, top, spin chamber (2-1) is cylindrical hollow configuration, and bottom, spin chamber (2-1) is circlePyramidal structure, spin chamber's (2-1) cylindrical end and conical section Length Ratio are 1:1.52～1:2.52; Described underflow opening (2-2) is circleCylindrical hollow structure, underflow opening (2-2) upper end and spin chamber (2-1) conical section bottom seamless welding, under underflow opening (2-2)End connects and is connected with reservoir chamber (2-3); Described reservoir chamber (2-3) is positioned at underflow opening (2-2) bottom, reservoir chamber (2-3)For cylindrical structural; Described discharge (2-4) is positioned at top, spin chamber (2-1), discharge (2-4) center and spin chamber(2-1) top center overlaps, and discharge (2-4) diameter is 0.19～0.59 times of spin chamber (2-1) cylindrical section diameter, collectionTracheae (2-4) lower end is apart from the top 20.22cm～30.36cm of spin chamber (2-1); Described atomizing water nozzle (2-5) is positioned atDischarge (2-4) surrounding, the quantity of atomizing water nozzle (2-5) is 4～16, atomizing water nozzle (2-5) and overflow cascade washers(3) pipeline connects.
3. a kind of cyclone dust removal desulfurizer according to claim 1, is characterized in that: described desulfurizing tower (6), comprising:Tower body (6-1), supporting plate (6-2), polymer carrier (6-3), fluid reservoir (6-4), sulfur dioxide concentration sensor (6-5); Described tower body (6-1) upper end is conical structure, and tower body (6-1) bottom is cylindrical structural, tower body (6-1) circular coneSection and cylindrical section Length Ratio are 1:4.58～1:8.45; Described supporting plate (6-2) is horizontally disposed at tower body (6-1) inner circular shell of column,Supporting plate (6-2) is disc-shaped structure, supporting plate (6-2) outward flange and tower body (6-1) inwall seamless welding, supporting plate(6-2) on plate face, be evenly distributed with the through hole of diameter 0.51cm～1.56cm, the quantity of supporting plate (6-2) is 2, bottomSupporting plate (6-2) is 20.56cm～30.45cm apart from the distance of tower body (6-1) bottom, top supporting plate (6-2) distanceThe distance at tower body (6-1) top is 50.48cm～90.48cm; Described polymer carrier (6-3) is macromolecular material press mold one-tenthThe prefabricated component of type, tower body (6-1) inside of polymer carrier (6-3) uniform filling between two supporting plates (6-2); InstituteState fluid reservoir (6-4) and be positioned at tower body (6-1) bottom, fluid reservoir (6-4) is cylindrical hollow configuration, fluid reservoir (6-4)Interpenetrate and edge seamless welding in top and tower body (6-1) bottom; Described sulfur dioxide concentration sensor (6-5) is positioned at towerOn the one side inwall of body (6-1) cylindrical section top, sulfur dioxide concentration sensor (6-5) distance from top tower body (6-1) cylindrical sectionThe distance on top is 5.89cm～10.48cm, and sulfur dioxide concentration sensor (6-5) connects by wire with control system (9)Connect.
4. a kind of cyclone dust removal desulfurizer according to claim 3, is characterized in that: in described polymer carrier (6-3)Portion is alveolate texture, and honeycomb hole diameter is 5.59nm～10.48nm, the size of polymer carrier (6-3) be 0.15cm～1.59cm, polymer carrier (6-3) comprising: astrosphere (6-3-1), columnar protrusions (6-3-2); Described astrosphere (6-3-1)Be positioned at polymer carrier (6-3) middle part, astrosphere (6-3-1) is regular chondritic; Described columnar protrusions (6-3-2)Be positioned at astrosphere (6-3-1) spherome surface, columnar protrusions (6-3-2) is and astrosphere (6-1-3) vertical being connected of spherome surfaceColumn construction, columnar protrusions (6-3-2) is arranged symmetrically with along above-below direction all around on astrosphere (6-3-1) surface, everyColumnar protrusions (6-3-2) quantity on individual polymer carrier (6-3) is 4～16, the height of columnar protrusions (6-3-2) cylinderDegree is 0.55:1～0.87:1 with the ratio of astrosphere (6-3-1) diameter.
5. a kind of cyclone dust removal desulfurizer according to claim 3, is characterized in that: described polymer carrier (6-3) byMacromolecular material moulded section, constituent and the manufacture process of polymer carrier (6-3) are as follows:
One, constituent and the manufacture process of polymer carrier (6-3), meter by weight, comprises following steps:
The 1st step, in reactor, to add electrical conductivity be 2000～3500 parts of the ultra-pure waters of 0.01 μ S/cm～0.05 μ S/cm, startsAgitator in reactor, rotating speed is 40rpm～60rpm, starts heat pump, makes reactor temperature rise to 55 DEG C～60 DEG C;Add successively 20～30 parts of methyl-rhodanides, 1～8 part of methyl-isorhodanate, 1～8 part of positive methyl valerate, be stirred to completelyDissolve, regulating pH value is 5～8.0, and agitator speed is adjusted to 80rpm～120rpm, and temperature is 55 DEG C～60 DEG C, esterificationReact 3～8 hours;
The 2nd step, get 1～8 part of 1～8 part of methyl abietate, methyl acetoacetate and pulverize, powder diameter is 150～250 orders;Add 200～400 parts of nanoscale boric acid rhodiums to mix, be laid in pallet, tiling thickness is 20.34mm～40.45mm,Employing dosage is alpha ray irradiation 15min～30min that 2.0kGy～3.0kGy, energy are 3.5MeV～5.5MeV;
The 3rd step, be dissolved in 15～30 parts of the methyl benzoates that concentration is 25ppm～180ppm through the mixed-powder of the 2nd step processing,Add reactor, agitator speed is 55rpm～65rpm, and temperature is 80 DEG C～90 DEG C, starts vavuum pump and makes the true of reactorReach-0.01MPa of reciprocal of duty cycle～-0.02MPa, keeps this state response 2h～8h; Pressure release also passes into stink damp, makes reactorInternal pressure is 0.002～0.01MPa, and insulation leaves standstill 1h～2h; Agitator speed is promoted to 90rpm～110rpm afterwards, withTime reactor pressure release to 0MPa; After adding successively 10～20 parts of 1～20 part of methyl acrylates, methyl stearate to dissolve completely,Add 10～25 parts of crosslinking agents to be uniformly mixed, the hydrophilic lipophilic balance that makes reactor solution is 4.5～6.0, and insulation leaves standstill1h～2h；
The 4th step, in the time that agitator speed is 180rpm～210rpm, add successively 1～8 part of repefral, just oneself1～8 part of 1～8 part of acid methyl esters and dimethyl sulfite, promote reactor pressure, makes it reach 0.01MPa～0.20MPa,Temperature is 110 DEG C～120 DEG C, polymerisation 2h～10h; After having reacted, reacting kettle inner pressure is down to 0MPa, is cooled to30 DEG C～40 DEG C, discharging, enters molding press and can make polymer carrier (6-3);
Described crosslinking agent is dimethyl succinate;
The particle diameter of described nanoscale boric acid rhodium is 30nm～130nm.
6. a method of work for cyclone dust removal desulfurizer, is characterized in that: a kind of method of work bag of cyclone dust removal desulfurizerDraw together following step:
The 1st step, control system (9) are controlled air pump and are started, and make the pressure of air pump generation 0.01MPa～0.02MPa, waste gasTangentially enter cyclone dust catcher (2) top at a high speed with the speed of 2m/s～15m/s via air inlet pipe (1), simultaneouslyControl system (9) is controlled the shower water that liquid distribution (3) is 0.1MPa～0.2MPa by pressure and is delivered to cyclone dust catcher(2) top, and under the effect of atomizing water nozzle (2-5), form the ejection of 180nm～210nm droplet, shower water is uniformDispense on spin chamber (2-1) inwall, waste gas enters behind spin chamber (2-1), under the effect of centrifugal force and gravity, and waste gasIn dust be close to the inwall High Rotation Speed of spin chamber (2-1), and atomizing spray water on spin chamber (2-1) inwall is combined,Be downward through underflow opening (2-2) along wall together and enter reservoir chamber (2-3), finally discharge from drainpipe (4), separateFrom spin chamber, (2-1) inside center rises the gas of dust, finally enters wireway (5) along discharge (2-4);
The 2nd step, the gas that enters the preliminary treatment of wireway (5) enter desulfurizing tower (6) inside from desulfurizing tower (6) lower end one side,It is defeated constantly that control system (9) is controlled the NaOH solution that alkali lye conveying device (7) is 5%～25% by mass concentration simultaneouslyDeliver to desulfurizing tower (6) top, the gas of preliminary treatment is from bottom to top successively by supporting plate (6-2) and polymer carrier (6-3) and with the mobile from top to bottom abundant haptoreaction of alkali lye, the clean gas after end reaction is from blast pipe (8) removal system;
The 3rd step, system sulfur dioxide concentration sensor in service (6-5) be to the sulfur dioxide concentration Real-Time Monitoring in desulfurizing tower (6),When sulfur dioxide concentration in sulfur dioxide concentration sensor (6-5) detects desulfurizing tower (6) exceedes setting, titanium dioxideSulfur concentration sensor (6-5) produces signal to control system (9), and control system (9) is controlled the air pump of air inlet pipe (1),Make it reduce charge flow rate, control system (9) is controlled liquid distribution (3) adherence pressure simultaneously increases water yield, control system(9) controlling alkali lye conveying device (7) increases the flow of NaOH solution, and produces audio signal and remind keeper to note; WhenSulfur dioxide concentration sensor (6-5) detects when the sulfur dioxide concentration in desulfurizing tower (6) returns to normal range (NR), controlsSystem (9) is controlled the air pump of air inlet pipe (1), makes it increase charge flow rate, and control system (9) is controlled liquid distribution simultaneously(3) recover normal pressure value and normal water yield, control system (9) is controlled alkali lye conveying device (7) and is returned to normally defeatedOutflow, and produce green light index signal and show that system is normal.
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| CN107286969A (en) * | 2017-08-10 | 2017-10-24 | 榆林煤化工产业促进中心 | A kind of pyrolysis oven based on packed bed pulverized coal pyrolysis, pyrolysis installation and pyrolytic process |
| CN107983096A (en) * | 2017-12-11 | 2018-05-04 | 江苏蓝电环保股份有限公司 | A kind of device and method for flue gas desulfurization |
| CN110513709A (en) * | 2019-08-30 | 2019-11-29 | 王晶 | A kind of chimney sulphur removal dust-extraction unit controlling atmosphere pollution |
| CN112076579A (en) * | 2020-09-17 | 2020-12-15 | 南京大学 | Small-sized equipment and method for cyclone-water curtain two-stage purification of flue gas of agricultural dwelling houses |
| WO2021148211A3 (en) * | 2020-01-23 | 2021-10-14 | Kunststoff Helmbrechts Ag | Method and devices for purifying exhaust air |
| CN114345105A (en) * | 2021-12-29 | 2022-04-15 | 山东理工职业学院 | Environment-friendly pharmacy exhaust-gas treatment equipment |
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Application publication date: 20160518 |
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