CN1142784A - Apparatus and method for controlling pollution - Google Patents
Apparatus and method for controlling pollution Download PDFInfo
- Publication number
- CN1142784A CN1142784A CN 94194960 CN94194960A CN1142784A CN 1142784 A CN1142784 A CN 1142784A CN 94194960 CN94194960 CN 94194960 CN 94194960 A CN94194960 A CN 94194960A CN 1142784 A CN1142784 A CN 1142784A
- Authority
- CN
- China
- Prior art keywords
- gas
- particle
- make
- perforate
- downstream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
A pollution control system and method in which hot flue gas is cooled to saturation in a quencher (8) and passed through a condenser absorber assembly (13) to further cool the saturated gases while growing small particles as the particles act as nuclei for the condensation of water vapor thereon. The grown particles are carried through an aperture (52, 53, 54) having a low pressure drop throat so that high efficiency particle collection is accomplished. At its outlet, the aperture produces a concentration of the gases and water droplets. A dome shaped gas reverser (62, 63, 64) receives the gas stream to mix and diffuse the gas and constituents. An electrostatic precipitator (23) is disposed downstream of the gas reverser (62, 63, 64) to remove the remained particles and fine water droplets.
Description
The present invention relates to pollute the device of control and utilize this device from fluid, to remove the method for harmful components.More particularly, the present invention relates to pollute the apparatus and method of control, in order to more effectively from calciner emission, to remove harmful substance.
The processing of harmful waste has become a very important problem, and this has been recognized in modern society at large.Along with public's common attention, a large amount of funds has been used on the device of waste disposal so that remove the various and harmful product that produces in the human daily routines effectively from surrounding environment.Certainly, had better prevent that at the very start it from entering in the surrounding environment to these products.
Therefore, think at large, prevent that harmful substance from entering surrounding environment is important problems.In this respect, air pollution control device just must be removed harmful substance wherein before pernicious gas enters atmosphere, thereby played effect clearly.In general, effectively pollution control device aloft harmful substance generation ground or produce ground near just with its removing or it is reduced significantly.Like this, as long as the problems referred to above solve on the spot, just can with pollute body when its concentration is maximum with regard to effectively with its removing.
In history, be subjected to attention very early, just the flue gas scrubber be used for reducing the particle in some stoves and the calciner emission thereupon from the granular pollution body of chimney.Granular pollution body bigger in the waste gas has been adopted the wet method scrubber to handle waste gas and removed wherein coccoid.
In a kind of wet method scrubber commonly used, make the water pressurized spray into process chamber, and waste gas is passed through process chamber, thus particle in the scavenging.The removing function is mechanical rather than chemical property to a great extent.Here the nozzle that can select larger aperture for use to be producing bigger water droplet, because here and do not require that water droplet has the long-pending media that is used as chemical reaction of very big contact surface.General waste gas scrubber example can be indicated in United States Patent (USP) 3,894,853 and 5,147,421.
General scrubber can be used for multiple occasion, but often should not be in order to remove from the emission gases in the hot gas source.Under some occasion, this thermal current is that the calcining furnace under very high temperature operation produces, and handled in the calcining furnace all is harmful waste, municipal sludge and other dirty sources from hospital.The flue gas of heat contains various harmful components, comprises heavy metal, contains acid gas, dust and definite or suspicious carcinogen.The common scrubber of simple employing is helpless removing these harmful substances in general.
Generally, from the flue gas of calcining furnace have diameter in 3-4 μ scope larger particles and diameter below 0.3 μ than granule.
In the time must removing diameter less than the particle of 1 μ, Wen's tubular type scrubber still can use.This scrubber often belongs to gas atomization device, makes water splitting become droplet and becomes the equally distributed little water droplet of high density by means of shearing force and impact force.Like this, contamination particle collision water droplet probability is increased, can carry out the inertial separation of particle finally.This device needs a large amount of water sometimes and expends high energy and just obtain effective exhaust-gas treatment.Like this, Wen's tubular type scrubber itself just should not be in order to remove the harmful substance in the calciner emission.
It is effective that the electrostatic filter that grows up simultaneously with Wen's tubular type scrubber is removed airborne particle in some applications.The example of electrostatic filter can be indicated in United States Patent (USP) 1,329, and 825,1,479,270,2,730,195,3,765,154,3,958,961 and 4,251,234.
In general, in the high energy Venturi tube, based on the Removal Technology of inertia practical limit for removing submicron and inapplicable because this particle aprowl quality is very little or almost do not have a quality.When removing these particles, common device is used the electrostatic attraction principle sometimes, makes general scrubber add positive charge on the air-flow that enters and strengthens its cleaning effect.Because water often has negative electrical charge, tiny particle is subjected to the attraction of water under the electrostatic attraction effect, removes away from device as blowdown thereupon.Therefore, can use the combination of scrubber and electrostatic filter for some application.This combined unit can be indicated in United States Patent (USP) 4,019, and 444,4,256,468,4,305,909,4,957,512 and 5,154,734.
Under some occasion, can use the combined unit of Wen's tubular type scrubber and electrostatic filter, but the application in calciner emission is handled is just very limited.In above-mentioned application, this device general expenses is all very big, requires very high energy and a large amount of water and the reagent of consumption.In addition, this device is also bulky, requires big spatial accommodation.Because its volume is big, so equipment installation, pipeline laying and maintenance cost also obviously strengthen.
Except the limitation of above-mentioned normal air pollution control device, the time of staying weak point of gas in device also is a difficult problem, and filter can make the mis-behave of device because gas is flowed through too quickly.Certainly will strengthen its volume to the pollution control device that adopts electrostatic filter in common device, adding long residence time.Like this, for adapting to the reality of modern calcining furnace high flow capacity flue gas, pollution control device certainly will be done very hugely.But, although add large volume, a lot of common devices still can't be on performance and on the operating cost not only economy but also reasonably remove particle in the calcining furnace flue gas.
Air communication is crossed problem already that electrostatic filter occurred when too fast and is discovered in the development of gas treatment equipment and made some trial of remedying.Can consult United States Patent (USP) 1,329 in this respect, 825 and 1,479,270, herein, promptly the upstream of filter is provided with a baffle plate.At United States Patent (USP) 2,730, a plurality of baffle plates have then been adopted in 195 and 3,958,961 in the upstream.These baffle plates cause turbulent flow to air current flow again simultaneously, thereby have reduced the performance of filter in order to delay the air-flow by filter.In addition, these baffle plates have increased the operating cost of device, because driving gas is by still need extra energy of said apparatus.Like this, the performance that adopts baffle plate to improve said apparatus just has little significance.
Another problem that runs in adopting the wet electrostatic filter is that the fluid that enters filter contains sometimes without well-mixed G﹠W.This G﹠W skewness has reduced the performance of filter, thereby can make discharge of poisonous waste in surrounding environment.In addition, this skewness can cause the corrosion of filter, thereby shortens the service life of device.
Therefore, press for a kind of economy but also effective pollution control device not only operated, make it can remove harmful substance in the very wide waste gas of scope in the calcining furnace effectively.This device should be optimized the performance of filter as far as possible and make its mis-behave degree drop to minimum.In addition, this device can accomplish to be convenient to maintenance, and compares more compact significantly with common device.
An object of the present invention is to provide a kind of pollution control device and method, can be from the calcining furnace flue gas the very wide harmful pollution body of removing scope, can save energy and water again.
Another object of the present invention provides a kind of pollution control device and method of novel improved, but economical and effective, avoids often that maintenance ground carries out exhaust-gas treatment.
A further object of the present invention provides a kind of pollution control device of novel improved, and wherein, most members are contained in the single container.
A further object of the present invention provides a kind of pollution control device of novel improved, and the member in it is arranged compact, the erection space that can save equipment.
A further object of the present invention provides a kind of apparatus and method of improved pollution control, can remove harmful components from waste gas stream and reduce the water vapour that is discharged in the atmosphere significantly.
In brief, for reaching the above and other purpose of the present invention, by providing following a kind of apparatus and method of polluting control to realize, in this apparatus and method, the flue gas of heat is cooled to be saturation state in a cooler, and pass through a condenser heat dump saturated gas is done further cooling, because particle can become the nuclei of condensation of water vapour, smaller particles will be grown up owing to water vapour condenses.Make these particles of having grown up by having the perforate of low pressure drop throat again, just can reach particle aggregation efficiently.Perforate can produce the gathering of gas and water droplet in its exit.One cheese gas reverser has the concave surface towards the upstream, the separated by a distance and outlet of alignment apertures substantially with perforate.The gas reverser is accepted the air-flow flow out from perforate, and when gas and composition thereof change direction, in the dome limit of the gas reverser that overflowing it is fully mixed and spread.
When device was operated, the flue gas of heat was with the device of flowing through of high flow rate very, but and air-flow during through the condenser heat dump less than the particle of 0.3 μ because its nucleus of condensation volume that becomes water vapour is grown up twice.The gas of nucleus of condensation that contains the volume that swells produces the particle aggregation of the height under the low pressure drop herein at this moment by the throat of perforate.Gas collides the air-flow reverser then, and reverser makes air-flow reverse flow reposefully, and various compositions fully mixed before entering the wet electrostatic filter in the air-flow thereby make.After air water was mixed, the problem of the gentle uneven distribution of water just was resolved basically in the air-flow, and the load of filter has reduced, and performance is improved.
Except that immixture, the gas reverser also has the effect of separator and diffuser, makes gas obtain prerinse before entering electrostatic filter, and granule and remaining fine liquid particles have electrostatic charge and be deposited on the tube wall of assembling pipe in electrostatic filter.In addition, reverser has reduced air velocity, thereby has prolonged the time that air-flow stops in filter.
After the process processing of filter, the airflow passes after the cleaning has the pumping chamber of fog dispersal device, enters flue by delivery pipe and ventilation blower then.Liquid of assembling and solid enter the sump that is positioned at bottom of device from assemble pipe,, just can at an easy rate it be passed through the delivery pipe venting here.
The present invention has several outstanding advantages.At first, utilized the condensation of water vapour to obtain the particle aggregation of remarkable enhancing.In this respect, a certain amount of water vapour is condensate on the particle, thereby its quality and volume are all increased and is easy to collect, and the water vapour of a certain amount of positive condensation can be taken away particle when shifting to cold particle surface.In addition, the gas reverser has promoted cleaning process significantly, is easy to remove because of it not only makes particle and contains acid gas, and makes air-flow do more effective distribution in filter.
Another tangible advantage of the present invention is that stack gases contains the water vapour that only is about common pollution control device 1/5, thereby has suppressed often to appear at the harmful water vapour ejection in the pollution control device.In addition, owing to reduced the water content of Purge gas, weakened the corrosion phenomena of ventilation blower and other upstreams equipment significantly.
Because above-mentioned advantage of the present invention is cleaned flue gas effectively with regard to available less device.In this respect, the main member portion of device is contained in the container, thereby has simplified operation, obtains the operation and the tangible economic effect that avoid often maintenance.
Above-mentioned and other purposes of the present invention and characteristics and the method for obtaining thereof in conjunction with the accompanying drawings can be more obvious to the embodiments of the invention illustration by following content, also can obtain better understanding to inventing itself, in the accompanying drawing:
Fig. 1 is the sketch of pollution control device of the present invention;
Fig. 2 is the local sketch of gas reverser of the present invention;
Fig. 3 is the local sketch of another gas reverser of the present invention.
Figure 1 shows that the novel pollution control device 10 of the present invention.Device 10 is collected hot flue gas from the calcining furnace that produces harmful exhaust.Often have harmful really heavy metal, the dust that maybe may be harmful to of health in the flue gas stream, contain acid gas and other materials.
Generally speaking, device 10 is equipped with the casing 11 of condensation heat dump 13, gas diffusion and reverse district 15 of air-flow and wet electrostatic filter 23 in long and narrow by one.Gas is flowed through after the device 10, and wherein harmful substance is eliminated substantially, and gas just is discharged in the atmosphere usually and goes.In this respect, the gas institute moisture vapor that is discharged in the atmosphere by the exhaust blower (not shown) that installs is less than 1/5 of common pollution control device.
In operation, waste gas is pressed direction shown in the arrow 17 through inlet 18 accesss to plant 10, enters the cooler 8 that Venturi tube 19 wherein is housed again.Venturi tube 19 has the aditus laryngis part 22 that is formed by wedge 24,25.During through Venturi tube 19, the atomizer (not shown) usually makes and is full of water smoke in the gas at air-flow.Gas is in saturation state because of cooling off through subcooler 8 time, a bigger material is cleaned away.Gas arrives 26 o'clock process pipe 28 inflow casings 11 of outlet.
Most main members of device 10 are contained in the casing 11.These members are sump 31, condensation heat dump 13, atomizer such as nozzle 33 and 42, gas diffusion and reverse district 15 and wet electrostatic filter 23.Including acid gas at turriform casing 11 will be eliminated, the volume contraction of gas, and gas then is subjected to further cooling.In this stage, volatile heavy metal just is condensed into the granulated attitude from steam condition.The heavy metal of these condensations and other submicrons become big and are easy to remove.
Water pumping from pipeline 38 in the collection holding tank 31 is gone out, it is cooled off by the heat exchanger (not shown).Make water flow into header 39 again, in this pipe, mix and enter reverse atomizer 33,34,35,36 and atomizer 42,43,44 forward with general alkaline aqueous solution from the liquid-accumulating trough (not shown) through cooling.Above-mentioned reverse and forward nozzle at device 10 the water smoke that sprays continuously in service.
The gas condensation heat dump 13 of after entering casing 11, upwards flowing through.Condensation heat dump 13 is equipped with structural type or the irregular type filler that is the wet film shape, has translot, in order to form very broad wetting from the teeth outwards air-flow is flow through on this surface.
For example the recirculated cooling water with reversal nozzle 33 and forward these atomizers ejections of nozzle 43 makes condensation heat dump 13 wetting, and makes the air-flow cooling, reaches the water vapour condensation and make to contain in the acid gas and make submicron become big so that by inertial collision it is removed simultaneously.In this respect, should see that inertial collision is effectively to bigger particle, but ineffective to the particle less than about 0.3 μ.When airflow passes condensation heat dump 13, smaller particles plays the effect of the nuclei of condensation that become water vapour, and drop diameter will be grown up to about 0.6-0.7 μ.This water droplet particle of growing up is just effectively removed for the downstream and is created conditions.
Gas is flowed through behind the condensation heat dump 13, promptly runs into plate 46, and plate is provided with plurality of opening such as perforate 53,54,55, is carrying out particle aggregation here.Every Kong Rukong 53 has aditus laryngis part as throat 56, and aditus laryngis can produce particle aggregation efficiently under low pressure drop.In fact, thus the throat of about 10-20 inches of water(in H pressure drop just can alleviate the performance of the load improved filter of filter 23.
Air-flow flows out perforate 52,53,54 back gas coming through diffusion and reverse districts 15.Air-flow collides for example gas reverser 62,63,64 of the downward dome-shaped gas reverser of concave surface when distinguishing through this.Each gas reverser is aimed at corresponding perforate outlet haply.Like this, for instance, reverser 62 is with regard to alignment apertures 53 and throat 56.Each gas rhetorical question utensil has the double action of separator and diffuser, with so that air-flow reverse flow reposefully, and gas is flowed out along its edge, and for example the edge 66 along gas reverser 64 flows out.As can be seen, enter the air-flow part of reverser haply along path flows shown in arrow 7 and 9.Like this, gas before flowing through the reverser edge because the collision gas reverser is subjected to significantly mixed effect.Therefore, gas reverser 62,63,64 has played multiple effect.
At first, air-flow during along reverser concave surface smooth flow the uniformity of air-flow improved.This just makes, and each composition more effectively mixes in the air-flow, meanwhile, has encouraged growing up of particle nucleome diameter.In addition, in air-flow, produced bigger diffusion, thereby and created condition for air-flow in the processing of the electrostatic filter 23 that places its downstream owing to improved in the air-flow immixture of each composition.These factors have obviously been improved the polymerization of particle, also with regard to electrostatic filter is compared with general pollution control device more can keep its clean and also its to comfort the corrosion ability also higher.
The effect of gas reverser 62,63,64 each composition in playing mixed airflow reposefully, also prolonged the time of staying and the load of filter has been alleviated by the flow velocity that reduces airflow passes filter 23.In addition, owing to eliminated the irregular problem of air water in the air-flow, improved the performance of filter.
In a word, device 10 whenever flow through the 2000-6000 cubic feet/minute gas must adopt a perforate and corresponding gas reverser.In some applications, maximum stream flow can reach 50,000 cubic feet/minute.Like this, just must adopt perforate and gas reverser more than 12 just can satisfy the demand, the gas reverser can be made coaxial arrangement with respect to casing in casing 11.
Downstream at reverser 62,63,64 is provided with gauze pad 67, enters the water droplet of filter 23 in order to minimizing.Grid 59 is supporting on the gauze pad 67, also is used for supporting gas reverser 42,43,44 simultaneously.Gauze pad available metal, polypropylene or the establishment of other suitable materials.One or several dewatering outlet for example dewatering outlet 48 is delivered to sump 31 with the water droplet particle of water and gathering by pipeline 57 so that do irregularly discharging in 10 from installing.
Gas enters filter 23 after flowing out diffusion and the zones of inversions 15 and the gauze pad 67 of flowing through.Filter 23 by some be equipped with the pipe that plays the aggtegation electrode to up cylindricality for example manage 71 and the rod-shaped electrode 73 that is provided with one heart constitute.Electrode is suspended on the busbar 77, is contained in the casing 78, dry air circulation is all arranged in casing so that high-tension insulator for example insulator 83 keep dry.When gas is flowed through filter 23, make particle and remaining fine liquid particles have electrostatic charge and condense on the wall body of assembling pipe 71 so that finally remove away from installing 10.
The gas that purifies also will be flowed through when outflow filter 23 and be had another gauze pad 76 of same structure and effect with gauze pad 67.At this moment gas flowed through a pumping chamber 75 and pressed direction bleeder 10 shown in the arrow 81 from exporting 79.At this moment the blast pipe (not shown) of gas inflow device and exhaust blower (not shown) are so that be discharged in the atmosphere.The gas that purifies is in saturation state, in fact no longer has water droplet.
Liquid of assembling and particle just deposit in the sump 31 of casing 11 bottoms from assembling Guan Ruguan 71, and from then on it excludes the most at last in the groove.
Shown in Fig. 2,3,, but different shapes is arranged with cheese reverser shown in Figure 1 though gas reverser 62a, 62b have similar effect.As shown in Figure 3, perforate 53a has structure and the effect identical with perforate 53 among Fig. 1.Reverser 62a alignment apertures faces down, and has the shape of the dome of folding more than.As can be seen, reverser 62a makes gas along path flows shown in the arrow 7a.Equally, the reverser 62b alignment apertures 53b among Fig. 2.This reverser has ventricumbent cone shape and makes gas press path flows shown in the arrow 7b.
As can be seen, the structure of other gas reversers such as dish type or cup-shaped structure also belong to scope of the present invention.Like this,, should be appreciated that, also can make various change and make in its spiritual essence and scope that still remains on appended claims although specific embodiments of the invention are described.Therefore, unintentionally notion accurately or disclosure proposed by the invention are made restriction here.
Claims
Modification according to the 19th of treaty
1. one kind from from the method for removing deleterious particle the hot flue gas in calcining furnace or similar flue gas source, may further comprise the steps:
(a) make the hot flue gas of emitting in a cooler, be cooled to saturation state;
(b) make saturated gas pass through a condenser and do further cooling, make smaller particles wherein become the nuclei of condensation of water vapour at least, thereby because water vapour condenses thereon becomes greatly, thereby be suspended in particle in the water droplet at the interruption-forming that goes out of described condenser;
(c) make gas and water droplet, thereby also make particle, the outlet in perforate is assembled by a perforate at least;
(d) make the outlet of a gas reverser substantial registration perforate, thereby make gas and water droplet collide described gas reverser and make this reverser become a separator and diffuser, cause the water droplet of collision to be ground into the fine particle and the fine liquid particles of mixing with gas;
(e) filter tiny particle and water droplet, deleterious particle is removed away from gas, gas is purified, and the gas that purifies is discharged in the atmosphere again.
2. from hot flue gas, remove the device of deleterious particle, have from calcining furnace or similar flue gas source:
(a) container has the upstream extremity of a band perforate, in order to send into gas and the particle from described calcining furnace, also has a perforate that is positioned at downstream, in order to being discharged into through the Purge gas of described container in the atmosphere;
(b) condenser, be contained in the described container, perforate near its upstream extremity, make gas lead to the downstream of described condensation heat dump and cooled off, at least make smaller particles wherein become the nucleus of condensation of water vapour, thereby become big thereon, thereby form the particle that is suspended in the water droplet at the lower exit end of described condenser owing to water vapour condenses;
(c) mechanism that does not wherein have a perforate at least, it is contained in the described container, is positioned at the downstream of described condensation heat dump, make described gas and water droplet, thereby also make particle, by at least one perforate, thereby gas and water droplet are assembled at the place of swimming out of once of described at least one perforate;
(d) a gas reverser, be contained in the described container, be positioned at the downstream of described at least one perforate, the outlet of substantial registration perforate, with and make gas and water droplet collide described gas reverser and make described gas reverser become a separator and diffuser, thereby the water droplet that makes collision is ground into tiny particle and fine liquid particles, and mixes with gas before further leading to described container downstream;
(e) filter is contained in the described container, is positioned at the downstream of described gas reverser, in order to filtering tiny particle and water droplet, thereby from gas eliminating particle and Purge gas, again the gas that the purifies downstream opening by described container is discharged in the atmosphere.
3. the gas cleaning plant of a calcining furnace includes:
(a) cooler has an inlet and an outlet, and in order to being cooled to saturation state from the hot flue gas of a calcining furnace, flue gas has the acid gas of containing and deleterious particle;
(b) container has the upstream extremity with a perforate, in order to the saturated gas of input from described cooler outlet, also has a perforate in the one downstream, in order to being discharged into by the Purge gas of described container in the atmosphere;
(c) a condensation heat dump, be contained in the described container, be positioned at the downstream of described container upstream extremity open interior, described condensation heat dump further cools off saturated gas, and major part contains acid gas and a part of particle so that remove at least, at least make smaller particles become the nuclei of condensation of water vapour, thereby owing to water recovery becomes big on it, thereby form bigger drops particle, and make and remaining contain acid gas and water droplet leads to the downstream of described condensation heat dump;
(d) mechanism that inside has plurality of opening, it is contained in the described container, is positioned at described condensation absorber downstream, with so that remaining acid gas and the water droplet of containing, thereby particle is all assembled and is led to each perforate downstream;
(e) gas reverser, be contained in the described container, be positioned at described downstream with mechanism of plurality of opening, make and remaining contain acid gas and water droplet collides described gas reverser, thereby make the gas reverser become a separator and expand the number device and remove the remaining acid gas that contains, emit no acid gas, and make the fine particle and the fine liquid particles that are ground into by the water droplet collision before the no acid gas from perforate further flows to described container downstream, not have the acid gas mixing therewith;
(f) filter is contained in the described container, is positioned at described gas reverser downstream, in order to filtering tiny particle and fine liquid particles, thereby removes remaining particle from no acid gas, the perforate of Purge gas by described container downstream is discharged in the atmosphere again.
4. by the described method of claim 1, wherein: gas and the water droplet step by at least one perforate is comprised make gas and water droplet, therefore also make particle, export the step of formed throat in described at least one perforate by one.
5. by the described method of claim 4, also comprise the step that makes gas and water droplet they be descended at the pressure in described at least one perforate exit by described throat.
6. by the described device of claim 2, wherein: the mechanism that described portion within it has a perforate at least also has throat in the outlet of its perforate, improves agglomeration of particles efficient in order to collide described gas reverser at water droplet before.
7. by the described device of claim 6, wherein: described gas reverser has a cheese member, and this member has the concave surface of also aiming at it basically towards described throat.
8. by the described device of claim 7, also have one and bring the mechanism of the water droplet of described filter in order to minimizing, it is contained in described reverser downstream.
9. by the described device of claim 8, wherein: the mechanism that the water droplet of described filter is brought in described minimizing into is the dictyosome structure.
10. by the described device of claim 9, wherein: the mechanism that the water droplet of described filter is brought in described minimizing into supports with a grid, the described cheese member of described grill bearing.
11. by the described calcining furnace gas of claim 3 purifier, wherein, the mechanism that described portion within it has plurality of opening also has throat, this throat is contained in described perforate downstream part, and aim at each perforate basically, in order to collide the efficient that improves particle aggregation before the described gas reverser at water droplet.
12. by the described calcining furnace gas of claim 11 purifier, wherein: described gas reverser has some cheese members, its quantity equals the quantity of described throat, and each member has a concave surface, and concave surface is towards also aiming at corresponding throat in the described contraction mouth substantially.
13. by the described calcining furnace gas of claim 12 purifier, also have one and bring the mechanism of the water droplet of described filter in order to minimizing, it is contained in described gas reverser downstream part.
14. by the described calcining furnace gas of claim 13 purifier, wherein: the mechanism that the water droplet of described filter is brought in described minimizing into is the dictyosome structure.
15. by the described calcining furnace gas of claim 14 purifier, wherein: the mechanism that the water droplet of described filter is brought in described minimizing into supports with a grid, the described a plurality of cheese members of described grill bearing.
Claims (3)
1. one kind from from the method for removing deleterious particle the hot flue gas in calcining furnace or similar flue gas source, may further comprise the steps:
(a) make the hot flue gas of emitting in a cooler, be cooled to saturation state;
(b) make saturated gas pass through a condenser and do further cooling, make smaller particles wherein become the nuclei of condensation of water vapour at least, thereby because water vapour condenses thereon becomes greatly, thereby be suspended in particle in the water droplet at the interruption-forming that goes out of described condenser;
(c) make gas and water droplet, thereby also make particle, the outlet in perforate is assembled by a perforate at least;
(d) make the outlet of a gas reverser substantial registration perforate, thereby make gas and water droplet collide described gas reverser and make this reverser become a separator and diffuser, cause the water droplet of collision to be ground into the fine particle and the fine liquid particles of mixing with gas;
(e) filter tiny particle and water droplet, deleterious particle is removed away from gas, gas is purified, and the gas that purifies is discharged in the atmosphere again.
2. from hot flue gas, remove the device of deleterious particle, have from calcining furnace or similar flue gas source:
(a) container has the upstream extremity of a band perforate, in order to send into gas and the particle from described calcining furnace, also has a perforate that is positioned at downstream, in order to being discharged into through the Purge gas of described container in the atmosphere;
(b) condenser, be contained in the described container, perforate near its upstream extremity, make gas lead to the downstream of described condensation heat dump and cooled off, at least make smaller particles wherein become the nucleus of condensation of water vapour, thereby become big thereon, thereby form the particle that is suspended in the water droplet at the lower exit end of described condenser owing to water vapour condenses;
(c) mechanism that does not wherein have a perforate at least, it is contained in the described container, is positioned at the downstream of described condensation heat dump, make described gas and water droplet, thereby also make particle, by at least one perforate, thereby gas and water droplet are assembled at the place of swimming out of once of described at least one perforate;
(d) a gas reverser, be contained in the described container, be positioned at the downstream of described at least one perforate, the outlet of substantial registration perforate, with and make gas and water droplet collide described gas reverser and make described gas reverser become a separator and diffuser, thereby the water droplet that makes collision is ground into tiny particle and fine liquid particles, and mixes with gas before further leading to described container downstream;
(e) filter is contained in the described container, is positioned at the downstream of described gas reverser, in order to filtering tiny particle and water droplet, thereby from gas eliminating particle and Purge gas, again the gas that the purifies downstream opening by described container is discharged in the atmosphere.
3. the gas cleaning plant of a calcining furnace includes:
(a) cooler has an inlet and an outlet, and in order to being cooled to saturation state from the hot flue gas of a calcining furnace, flue gas has the acid gas of containing and deleterious particle;
(b) container has the upstream extremity with a perforate, in order to the saturated gas of input from described cooler outlet, also has a perforate in the one downstream, in order to being discharged into by the Purge gas of described container in the atmosphere;
(c) a condensation heat dump, be contained in the described container, be positioned at the downstream of described container upstream extremity open interior, described condensation heat dump further cools off saturated gas, and major part contains acid gas and a part of particle so that remove at least, at least make smaller particles become the nuclei of condensation of water vapour, thereby owing to water recovery becomes big on it, thereby form bigger drops particle, and make and remaining contain acid gas and water droplet leads to the downstream of described condensation heat dump;
(d) mechanism that inside has plurality of opening, it is contained in the described container, is positioned at described condensation absorber downstream, with so that remaining acid gas and the water droplet of containing, thereby particle is all assembled and is led to each perforate downstream;
(e) gas reverser, be contained in the described container, be positioned at described downstream with mechanism of plurality of opening, make and remaining contain acid gas and water droplet collides described gas reverser, thereby make the gas reverser become a separator and expand the number device and remove the remaining acid gas that contains, emit no acid gas, and make the fine particle and the fine liquid particles that are ground into by the water droplet collision before the no acid gas from perforate further flows to described container downstream, not have the acid gas mixing therewith;
(f) filter is contained in the described container, is positioned at described gas reverser downstream, in order to filtering tiny particle and fine liquid particles, thereby removes remaining particle from no acid gas, the perforate of Purge gas by described container downstream is discharged in the atmosphere again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94194960 CN1142784A (en) | 1994-01-03 | 1994-01-03 | Apparatus and method for controlling pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94194960 CN1142784A (en) | 1994-01-03 | 1994-01-03 | Apparatus and method for controlling pollution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1142784A true CN1142784A (en) | 1997-02-12 |
Family
ID=5039592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94194960 Pending CN1142784A (en) | 1994-01-03 | 1994-01-03 | Apparatus and method for controlling pollution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1142784A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101780435A (en) * | 2010-02-25 | 2010-07-21 | 宁波大学 | Wet static dedusting device |
| CN101147891B (en) * | 2007-07-26 | 2010-09-15 | 北京科技大学 | High-performance charge pre-agglomerated electric tar corrector |
| CN102266699A (en) * | 2010-02-25 | 2011-12-07 | 宁波大学 | Method for treating flue gas of dyeing and finishing setting machine |
| CN102764542A (en) * | 2011-05-06 | 2012-11-07 | 苏州威琅智能系统集成有限公司 | Low-consumption high-efficiency industrial waste gas filter |
| CN104307630A (en) * | 2014-10-23 | 2015-01-28 | 上海龙净环保科技工程有限公司 | Continuous spraying washing and humidifying system and process of vertical flow wet type electric precipitator |
| CN105587376A (en) * | 2016-01-20 | 2016-05-18 | 四川村田机械制造有限公司 | Waste gas treatment mechanism of gas turbine unit |
| CN107029510A (en) * | 2015-11-26 | 2017-08-11 | 釜山大学校产学协力团 | The air cleaning unit grown using coalescence |
| CN116532241A (en) * | 2023-05-16 | 2023-08-04 | 宁波天秦自动化设备有限公司 | High-temperature oil smoke waste gas treatment system and treatment method |
-
1994
- 1994-01-03 CN CN 94194960 patent/CN1142784A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101147891B (en) * | 2007-07-26 | 2010-09-15 | 北京科技大学 | High-performance charge pre-agglomerated electric tar corrector |
| CN101780435A (en) * | 2010-02-25 | 2010-07-21 | 宁波大学 | Wet static dedusting device |
| CN102266699A (en) * | 2010-02-25 | 2011-12-07 | 宁波大学 | Method for treating flue gas of dyeing and finishing setting machine |
| CN102266699B (en) * | 2010-02-25 | 2014-03-05 | 宁波大学 | Method for treating flue gas of dyeing and finishing setting machine |
| CN102764542A (en) * | 2011-05-06 | 2012-11-07 | 苏州威琅智能系统集成有限公司 | Low-consumption high-efficiency industrial waste gas filter |
| CN104307630A (en) * | 2014-10-23 | 2015-01-28 | 上海龙净环保科技工程有限公司 | Continuous spraying washing and humidifying system and process of vertical flow wet type electric precipitator |
| CN104307630B (en) * | 2014-10-23 | 2016-07-06 | 上海龙净环保科技工程有限公司 | A kind of vertical current wet electrical dust precipitator is sprayed continuously and is rinsed and humidification system and technique |
| CN107029510A (en) * | 2015-11-26 | 2017-08-11 | 釜山大学校产学协力团 | The air cleaning unit grown using coalescence |
| CN105587376A (en) * | 2016-01-20 | 2016-05-18 | 四川村田机械制造有限公司 | Waste gas treatment mechanism of gas turbine unit |
| CN116532241A (en) * | 2023-05-16 | 2023-08-04 | 宁波天秦自动化设备有限公司 | High-temperature oil smoke waste gas treatment system and treatment method |
| CN116532241B (en) * | 2023-05-16 | 2024-02-09 | 宁波天秦自动化设备有限公司 | High-temperature oil smoke waste gas treatment system and treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5391220A (en) | Pollution control system and method of using same | |
| EP2466085A2 (en) | Centrifugal, wet-type air cleaner | |
| CN106422621B (en) | A kind of compound exhaust gas processor | |
| JPH0372913A (en) | Method and apparatus for treating exhaust gas | |
| CN1048506A (en) | Processing contains the method and apparatus of the waste gas of dust and chemical pollutant | |
| CN106512704A (en) | Fly ash modified high-efficient mercury removal method of dust remover and system thereof | |
| JP2000107540A (en) | Waste gas treatment system | |
| CN1142784A (en) | Apparatus and method for controlling pollution | |
| RU2381056C2 (en) | Unit to process powder materials | |
| CN213492812U (en) | Flue gas treatment system | |
| US4153432A (en) | Apparatus and method for collection of contaminants | |
| CN109529577A (en) | A kind of hypergravity cloud and mist anion VOC processing system of high temperature sterilization | |
| WO1995018664A1 (en) | Method and apparatus for pollution control | |
| JP3491124B2 (en) | Filtration type dust collector | |
| CN208553591U (en) | A kind of wet cottrell with spray washing function | |
| CN208320476U (en) | A kind of energy-efficient photooxidation catalytic waste gas processing unit | |
| SU1657913A1 (en) | Gas vent | |
| AU696223B2 (en) | Method and apparatus for pollution control | |
| CN2631619Y (en) | Vortex fluid-bed waste-gas purifier | |
| JPH10331623A (en) | Electroless exhaust gas cooling clean method | |
| CN212417411U (en) | Tail gas recovery cooling treatment device | |
| CN109529557A (en) | A kind of cloud and mist hypergravity VOC processing system | |
| CN214972821U (en) | Physical barrier adsorption gas-liquid-solid separation device | |
| CN214437267U (en) | Smoke treatment device | |
| CN216149301U (en) | Spray set for boiler dust removal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |