CN105498432A - Dusty gas dedusting method and device - Google Patents
Dusty gas dedusting method and device Download PDFInfo
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- CN105498432A CN105498432A CN201610068663.6A CN201610068663A CN105498432A CN 105498432 A CN105498432 A CN 105498432A CN 201610068663 A CN201610068663 A CN 201610068663A CN 105498432 A CN105498432 A CN 105498432A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
The invention relates to a dusty gas dedusting method and device. The device consists of a closed dedusting box body, as well as a rotary dust blocking filter cylinder, a sealing partition and a dust precipitation tank which are arranged in the box body, and a draught fan, wherein the sealing partition divides an inner chamber of the dedusting box body into a dust rotary filtering adsorption chamber, a gas purification area and the dust precipitation tank; the rotary dust blocking filter cylinder is arranged in the dust rotary filtering adsorption chamber; a dusty gas inlet, the dust rotary filtering adsorption chamber, a cavity of the rotary dust blocking filter cylinder and the gas purification area form a negative pressure gas circulation passage; the draught fan is arranged at the outlet of the a gas purification circulation passage; the dust precipitation tank is arranged at the lower part of the inside of the dedusting box body, and is filled with dust adsorbing liquid; the lower end camber surface of the rotary dust blocking filter cylinder is immersed into the dust adsorbing liquid; the outer circumferences of the dust rotary filtering adsorption chamber and the rotary dust blocking filter cylinder and the dust adsorbing liquid form a working path for adsorption of dust and separation of dust and the rotary dust blocking filter cylinder. The dedusting method can conduct quantitative filter screen water film wet-type negative-pressure dust collection, rotary-cut-type dust separation and tiny dust particle collection through the dedusting device, so that dust in dusty gas can be thoroughly cleaned.
Description
Technical field
The invention belongs to a kind of dust collection method and device of dusty gas.
Background technology
It is the application for a patent for invention that " 201510125073.8 " name is called " dust collection method of dusty gas and device " that Chinese patent literature disclosed a kind of number of patent application applied for by the applicant on 06 10th, 2015.This dust arrester it be block dirt filter cylinder by closed dust cleaning case and the rotation be located in casing and seal diaphragm, blowback choke dividing plate, dust clear up hairbrush and air-introduced machine is formed, dust-removing box inner chamber is separated into dust and revolves and consider adsorption chamber and without dust purification district and dust settling district by seal diaphragm; Rotation is blocked dirt filter cylinder and is assemblied in dust and revolves and consider in adsorption chamber, and dust revolves considers adsorption chamber and rotates the chamber that blocks dirt filter cylinder and form negative-pressure gas circulation passage without dust purification district, and the delivery outlet of gas purification circulation passage is located at by air-introduced machine; Rotate the dust blocking dirt filter cylinder outer annular edge and clear up hairbrush by being located to rotate to block blowback choke dividing plate in dirt filter cylinder chamber and be located at and form dust separation district, dust separation district is communicated with dust hopper through dust settling district, is provided with spray head in dust hopper.It is removed the dust in dusty gas by revolving the dust collection method of considering negative-pressure adsorption and choke blowback and cohering control of dust.Namely under the effect of negative pressure, the adsorbing powder dust in dusty gas is being rotated the surface of blocking dirt filter cylinder, pure air revolves worry adsorption chamber via dust under the effect of air-introduced machine and rotation is blocked the chamber of dirt filter cylinder and exports without dust purification district formation negative-pressure gas circulation passage.And be adsorbed on to rotate and block dust on dirt filter cylinder by choke blowback and dirt filter cylinder is blocked in dust and rotation be separated with cleaning with water, and under the effect of adhesive, the dust be separated is cohered into dust particale and be collected in dust hopper.Although this kind of dust collection method and device have preferably quantitatively dust removing effects, but also there is following defect: the first: owing to adopting the dedusting method of the quantitative dry type of filter screen, its dust particale thing being less than filter screen can not effectively be removed, and causes dust removing effects unstable.It two is due to very strong of the fine particulates adhesive force in dust, and the anxious dirt filter opening that easily will block of its fine particulates blocks, and causes the gravitation of negative pressure to reduce, affects dust removing effects.Its three be adopt blowback, the mode of hairbrush is separated with filter cylinder dirt, although this kind of method effectively can remove the fine particle thing rotating and block the interception of dirt filter cylinder.But this kind of mode, single unit system structure, complex process, production cost is higher.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, the dust collection method to dusty gas and the device of the quantitative wet type of a kind of filter screen is provided.
The object of the present invention is achieved like this: the dust collection method of this dusty gas, comprises the following steps:
A, moisture film the aspiration of negative pressure
By dusty gas, the dust introduced in closed dust-removing box revolves filter adsorption chamber, and the dust in next road dusty gas of blower fan graviational interaction blocks with rotation the moisture film that dirt filter cylinder filter screen is formed and blends, and forms moisture film adsorption of dust aspect; The dust of another road dusty gas directly enters in the liquid in dust stillpot, to be blocked in dirt filter cylinder chamber in rotation by the two-way micronic dust gas after dedusting and form aerosol mixtures, aerosol mixtures passes to rotate and blocks dirt filter cylinder inner chamber and enter gas purification district in dust-removing box;
B, dust are separated with filter cylinder
It is crossing with the liquid in rotation tangent line in the dust stillpot being located at closed dust-removing box bottom that dirt filter cylinder is blocked in rotation, and moisture film adsorption of dust aspect and rotation are blocked dirt filter cylinder and be separated, and the dust collection after separation is in dust stillpot;
C, dust particale control of dust
The method is further comprising the steps of:
Under blower fan graviational interaction, gas-water separation is carried out to aerosol mixtures:
A, aerosol mixtures carried out to air water and accelerate to be separated
Carry out air water by the covert circulation passage of the contraction of aerosol accelerating chamber to aerosol mixtures to accelerate to be separated, the free skating of dust-laden water droplet drops down onto in liquid collecting bucket, and slight aerosol mixtures accelerates to transport to the covert room of aerosol;
B, aerosol mixtures carry out break-in gas-water separation
Carry out gas-water separation to aerosol mixtures further by many groups break-in split channel of aerosol break-in indoor, the free skating of dust-laden water droplet drops down onto in liquid collecting bucket, and the aerosol mixtures containing micronic dust outputs to deceleration spray chamber;
C, aerosol mixtures carry out deceleration gas-water separation
Further carry out gas-water separation to the aerosol mixtures of cleaning by the break-in circulation passage of dispersing of deceleration spray chamber, the free skating of dust-laden water droplet drops down onto in liquid collecting bucket, and the gas of ultra micro dirt is discharged.
It is further comprising the steps of for the method:
Aerosol mixtures is introduced in the aerosol separation chamber in enclosed housing under blower fan graviational interaction, by rotating centrifugal cylinder, gas-water separation is carried out to aerosol mixtures, the free skating of dust-laden water droplet drops down onto in drip pan, and clean gas is discharged after the inner cavity chamber and dust free room of rotating centrifugal filter cylinder.
Comprise with the matching used special purpose device of dusty gas dust collection method and block dirt filter cylinder and seal diaphragm by closed dust-removing box and the rotation be located in casing, dust stillpot and air-introduced machine are formed, dust-removing box inner chamber is separated into dust and revolves and consider adsorption chamber and gas purifying area and dust stillpot by seal diaphragm, rotation is blocked dirt filter cylinder and is assemblied in dust and revolves and consider in adsorption chamber, worry adsorption chamber is revolved by dusty gas entrance and dust, rotate the chamber and gas purification district formation negative-pressure gas circulation passage that block dirt filter cylinder, the delivery outlet of gas purification circulation passage is located at by air-introduced machine, dust stillpot is located at the bottom in dust-removing box, its stillpot is built with adsorbing powder dust liquid, rotating the lower end cambered surface of blocking dirt filter cylinder invades in adsorbing powder dust liquid, dust revolves to consider adsorption chamber and rotate outer shroud week of blocking dirt filter cylinder and adsorbing powder dust liquid formation adsorbing powder dust and dust and rotation and blocks the working path that dirt filter cylinder is separated.
It also comprises a gas and water separator, this device is by case supports frame and be assemblied in the liquid collecting bucket that case supports frame is interconnected successively, aerosol accelerating chamber and the covert room of aerosol and deceleration spray chamber are formed, described aerosol accelerating chamber is a contraction covert circulation passage formula structure, the import of aerosol mixtures becomes an angle of 90 degrees with between delivery outlet, delivery outlet is communicated with the covert room of aerosol, aerosol break-in indoor are provided with gas-water separation deflector, the circulation passage of aerosol mixtures is formed between deflector, the delivery outlet of aerosol break-in room is connected with deceleration spray chamber, deceleration spray chamber is disperse covert circulation passage formula structure, the import of aerosol mixtures becomes an angle of 90 degrees with between delivery outlet.
It also comprises a centrifugal gas and water separator, this device is by bracing frame and be assemblied in the enclosed housing on bracing frame and the rotating centrifugal cylinder be assemblied in casing is formed, closed enclosure intracoelomic cavity is separated into aerosol separation chamber and dust free room by locellus dividing plate, rotating centrifugal filter cylinder is assemblied in aerosol separation chamber, the bottom of enclosed housing is drip pan, drip pan is connected with aerosol separation chamber, form negative-pressure gas circulation passage by the import of aerosol mixtures and the inner cavity chamber of rotating centrifugal filter cylinder and dust free room, the gas delivery port of dust free room is located at by air-introduced machine; The inwall of enclosed housing and dust hopper form the assembly collection channel of dust-laden water droplet.
The technological progress that the present invention obtains is: the present invention is removed the dust in dusty gas by the dust separation of the dust suction of quantitative filter screen water film wet type negative pressure and rotary-cutting type and dust particale control of dust.Namely under the effect of air-introduced machine, by dusty gas, the dust introduced in closed dust cleaning case revolves worry adsorption chamber, the surperficial moisture film formed of dirt filter cylinder that blocks of the dust in dusty gas and rotation mixes, namely moisture film adsorption of dust layer is defined rotating the outer surface blocking dirt filter cylinder, rotation is blocked dirt filter cylinder and is driven moisture film adsorption of dust layer crossing with the liquid in rotation tangent line in dust stillpot, moisture film adsorption of dust layer and rotation are blocked dirt filter cylinder and are separated, and the dust collection after separation is in dust stillpot.And pure air revolves worry adsorption chamber via dust under the effect of air-introduced machine and rotate the chamber blocking dirt filter cylinder and the negative-pressure gas circulation passage output formed without dust purification district.Key innovations of the present invention is:
One: adopt moisture film the aspiration of negative pressure mode
The dirt filter cylinder that blocks rotated revolves to consider in adsorption chamber at the dust closed and at the uniform velocity rotates, block dirt filter cylinder turning after the liquid in dust stillpot, water film is defined on the surface of blocking dirt filter cylinder, dust revolves the dust of considering in adsorption chamber and is subject to rotating the rotary-cut active force blocking dirt filter cylinder formation water film on the one hand, particularly be subject to the attraction being produced negative pressure by air-introduced machine, the dust made revolves the dust of considering in adsorption chamber more than 90% and is adsorbed on the top layer rotating and block dirt filter cylinder uniformly, define moisture film adsorption of dust layer, namely net is passed through, liquid combines the moisture film tension force formed and is used for tackling fine particulates.The adsorbing powder dust liquid of moisture film, volume increases, the increase of dust volume not only increases proportion and the gravitation of dust, also reduce the buoyancy of dust and penetrate the ability of blocking dirt filter screen, therefore quantitative filter screen water film wet type negative pressure dust suction mode, not only can tackle the dust being greater than aperture of filter screen, also effectively can tackle the dust being less than aperture of filter screen, its interception rate can reach more than 90%.Define alveolate texture between the dust in moisture film adsorption of dust layer and moisture film, the air gap that the micronic dust gas in dusty gas passes moisture film adsorption of dust layer under the effect of negative pressure enters to rotate and blocks in the chamber of dirt filter cylinder.
Its two: the separate mode adopting rotary-cutting type dust and filter cylinder
The rotation defining moisture film adsorption of dust layer blocks the uniform rotation of dirt filter cylinder by dust stillpot, it is crossing that moisture film adsorption of dust layer and the liquid in dust stillpot produce rolling tangential, moisture film adsorption of dust layer is subject to the reverse shock of liquid in dust stillpot, moisture film adsorption of dust aspect and rotation are blocked dirt filter cylinder and are separated, and the dust collection after separation is in dust stillpot.Periodically clear up being adsorbed on the rotation moisture film adsorption of dust layer blocked on dirt filter cylinder, not only effectively ensure that to rotate and block the gas permeability that dirt filter cylinder metal considers net, also ensure that interception dust granules thing is by the stability of quantitatively tackling, and further improves the accuracy class of interception dust.Simultaneously after moisture film adsorption of dust layer is eliminated, the rotation of operation in dust stillpot liquid is blocked dirt filter screen and is reduced liquid, the resistance that gas passes through, directly enter dusty gas in dust stillpot in liquid and liquid to merge and form liquid, dirt, gas mixture, liquid, dirt, gas mixture is under the effect of negative pressure gravitation, it is greater than and rotates the dust blocking dirt aperture of filter screen and be intercepted in the liquid in dust stillpot, be less than and rotate the air water dust particale thing blocking dirt aperture of filter screen and enter to rotate and block in the chamber of dirt filter screen, air water dust particale thing rotates the micronic dust gas and vapor permeation blocking dirt filter cylinder chamber and forms aerosol mixtures with entering through moisture film adsorption of dust layer, this aerosol mixtures passes to rotate and blocks dirt filter cylinder inner chamber and enter gas purification district in dust-removing box, thus achieve the water-film wet dust removal of quantitative filter screen continuous high-efficient.
Its three: adopt break-in, speed change and centrifugal mode carry out gas-water separation
In order to ensure the thorough purification to dusty gas, the present invention carries out udst separation by break-in, speed change and centrifugal gas-water separation mode further to the aerosol mixtures containing micronic dust.Its udst separation effect is reached close to zero-emission.(examining report--see appendix).
Its four: the present invention also has that overall structure is simple, volume is little, applying flexible is convenient, according to the needs of different user, not only can be used alone, and also can organize serial connection more and use.The dedusting of the industries such as power plant, steel mill, smelting, stove, chemical industry can be widely used in, also can support the use with dusting and desulfuring system.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 rotates the structural representation blocking dirt filter cylinder.
Fig. 3 is gas and water separator structural representation.
Fig. 4 is centrifugal gas and water separator structural representation.
Fig. 5 is that the present invention combines embodiment structural representation.
Fig. 6 is the second of the present invention combination embodiment structural representation.
Fig. 7 is the third combination embodiment structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, invention is described in further detail: as shown in Figure 1, the dust arrester of this dusty gas blocks dirt filter cylinder 2.3 and seal diaphragm 2.6 by comprising by closed dust-removing box 2.2 and the rotation be located in casing 2.2, dust stillpot 2.4 and air-introduced machine 5, dust-removing box 2.2 inner chamber is separated into dust and revolves and consider adsorption chamber 2.10 and gas purifying area 2.8 and dust stillpot 2.4 by seal diaphragm 2.6, the bottom of its seal diaphragm 2.6 is inserted in the adsorptive liquid 2.13 in dust stillpot 2.4, rotate and block dirt filter cylinder 2.3 and be installed on the filter cylinder main shaft 2.18 that driven by motor 2.11, filter cylinder main shaft 2.18 is supported by the support of bearing 2.12.Rotating the profile of blocking dirt filter cylinder 2.3 is a conical shell structure, as shown in Figure 2, rotates and blocks dirt filter cylinder 2.3 and be assemblied in dust and revolve and consider in adsorption chamber 2.10.The dust that corresponding rotation blocks dirt filter cylinder 2.3 top revolves to consider in adsorption chamber 2.10 and is equipped with and rotates the rolling hairbrush 2.7 blocking dirt filter cylinder extrados and match, rolling hairbrush 2.7 is assemblied on the power transmission shaft that driven by motor 2.14, and power transmission shaft has the hairbrush support of bearing 2.15 to support.In order to all loose dusty gas introduced, be provided with in dusty gas entrance 2.1 and block dirt plate 2.16, form negative-pressure gas circulation passage by the chamber that dusty gas entrance 2.1 and dust revolve worry adsorption chamber 2.10, dirt filter cylinder 2.3 is blocked in rotation and gas purification district 2.8, the delivery outlet of gas purification circulation passage is located at by air-introduced machine 5.Dust stillpot 2.4 is located at the bottom in closed dust-removing box 2.2, its stillpot 2.4 is built with adsorbing powder dust liquid 2.13, slope base plate 2.17 is equipped with in the bottom of dust stillpot 2.4, and in the bottom of dust stillpot 2.4, slag remover 2.5 is housed, for being discharged outside seal case 2.2 by dust.Rotating the lower end cambered surface of blocking dirt filter cylinder 2.3 invades in adsorbing powder dust liquid 2.13, and dust revolves to consider adsorption chamber 2.10 and rotate all and adsorbing powder dust liquid 2.13 of the outer shroud blocking dirt filter cylinder 2.3 and forms adsorbing powder dust and dust and rotation and block the working path that dirt filter cylinder is separated.
In order to the micronic dust in the aerosol mixtures to closed dust-removing box 2.2 output carries out further dedusting, the present invention also can be equipped with gas and water separator and centrifugal gas and water separator, is described respectively below:
Described gas and water separator is that the covert room 3.9 of liquid collecting bucket 3.8, aerosol accelerating chamber 3.3 and aerosol that case supports frame 3.10 is interconnected by case supports frame 310 and being assemblied in successively and deceleration spray chamber 3.4 are formed, described aerosol accelerating chamber 3.3 is a contraction covert circulation passage formula structure, the import 3.5 of aerosol mixtures becomes an angle of 90 degrees with between delivery outlet, in order to improve the output flow velocity of aerosol mixtures, the delivery outlet of aerosol accelerating chamber 3.3 is a contraction-like structure, and aerosol aerosol mixtures being carried out to accelerating type is separated.The delivery outlet of aerosol accelerating chamber 3.3 is communicated with the covert room 3.9 of aerosol, gas-water separation deflector 3.2 is provided with in aerosol break-in room 3.9, gas-water separation deflector 3.2 can adopt rotary structure, also the bending shape structure of the present embodiment can be adopted, the circulation passage 3.7 of the aerosol mixtures of bending shape is formed between deflector 3.2, the acceleration aerosol mixtures exported by aerosol accelerating chamber 3.3 enters in the covert room 3.9 of aerosol, the aerosol mixtures of high flow rate carries out refraction collision repeatedly in circulation passage 3.7, further carries out aerosol separation to the aerosol mixtures of input.The aerosol mixtures of further gasification exports deceleration spray chamber 3.4 to, and the import of aerosol mixtures becomes an angle of 90 degrees with between delivery outlet.Deceleration spray chamber 3.4 is disperse covert circulation passage formula structure, and the entrance namely accelerating spray chamber 3.4 is a funnel-shaped structure, and this kind of structure greatly reduces the flow velocity of aerosol mixtures, further carries out gas to aerosol mixtures, mist is separated.
Described centrifugal gas and water separator it by bracing frame 4.15 be assemblied in the enclosed housing 4.2 on bracing frame 4.15 and the rotating centrifugal cylinder 4.6 be assemblied in casing 4.2 is formed, enclosed housing 4.2 inner chamber is separated into aerosol separation chamber 4.4 and dust free room 4.5 by locellus dividing plate 4.3, rotating centrifugal filter cylinder 4.6 is assemblied on the drum spindle 4.13 that driven by drive motors 4.9, drum spindle 4.13 is supported by the support of bearing, in order to control to adjust the rotating speed of drive motors 4.9, be also equipped with PLC automatic speed regulation controller 4.12.Rotating centrifugal filter cylinder 4.6 is assemblied in aerosol separation chamber 4.4, and the bottom of enclosed housing 4.2 is drip pan 4.11, and the bottom of drip pan 4.11 is provided with mixture collecting bin 4.14.Drip pan 4.11 is connected with aerosol separation chamber 4.4, and form negative-pressure gas circulation passage by the inner cavity chamber of aerosol mixtures import 4.8 and rotating centrifugal filter cylinder 4.6 and dust free room 4.5, the gas delivery port 4.10 of dust free room 4.5 is located at by air-introduced machine; The inwall of enclosed housing 4.2 and drip pan 4.11 form the assembly collection channel of dust-laden water droplet.
The present invention is mainly used in the dedusting to dusty gas, owing to producing the industry of dusty gas and kind is a lot, is to adapt to the dedusting to different industries, kind dusty gas, and the present invention can select different to combinationally use mode.Can according to the difference of dustiness in the Drainage feature of different industries dusty gas and dusty gas, different combinations can be selected to use, the combination being used alone dust arrester different from gas and water separator and centrifugal gas and water separator with dust arrester uses, the main mode that combinationally uses has, one: be used alone dust arrester, as shown in Figure 1.Its two: dust arrester and gas and water separator, the combinationally using of centrifugal gas and water separator, as shown in Figure 5.Its three: combinationally using of dust arrester and gas and water separator, as shown in Figure 6.Its four: combinationally using of dust arrester and centrifugal gas and water separator, as shown in Figure 7.The general principle and the course of work that respectively combinationally use mode are substantially identical, existing are only described in the mode that combinationally uses of dust arrester and gas and water separator, centrifugal gas and water separator, and other combinations no longer repeat:
As shown in Figure 5, the present embodiment is made up of the tandem compound of dust arrester 2 and gas and water separator 3 and centrifugal gas and water separator 4, the dust pelletizing system that combination is formed is encapsulated in casing, when this system uses, first air-introduced machine 5 and motor 2.11, motor 2.14, drive motors 4.9 is opened, for the dedusting of dust pelletizing system is ready.
A, moisture film the aspiration of negative pressure
After unlatching air-introduced machine 5, introduced by dusty gas entrance 2.1 by the dusty gas of dedusting, dusty gas enters dust after being subject to blocking dirt plate 2.16 obstruct dispersion and revolves in filter adsorption chamber 2.10, under the graviational interaction of blower fan 5, entering the dusty gas that dust revolves in filter adsorption chamber 2.10 divides two-way flow, one road flow through to be revolved by dust consider adsorption chamber 2.10, the chamber of dirt filter cylinder 2.3 is blocked in rotation and gas purification district 2.8 is formed negative-pressure gas circulation passage.The dirt filter cylinder 2.3 that blocks rotated revolves to consider in adsorption chamber 2.10 at the dust closed and at the uniform velocity rotates, block dirt filter cylinder 2.3 turning after the liquid in dust stillpot 2.4, water film is defined on the surface of blocking dirt filter cylinder 2.3, the dust dust revolved in worry adsorption chamber 2.10 is subject to rotating on the one hand and blocks the rotary-cut active force that dirt filter cylinder 2.3 forms water film, particularly be subject to the attraction being produced negative pressure by air-introduced machine, the dust made revolves the dust of considering in adsorption chamber and is adsorbed on the top layer rotating and block dirt filter cylinder 2.3 uniformly, define moisture film adsorption of dust layer, alveolate texture is defined between the dust in moisture film adsorption of dust layer and moisture film, the air gap that micronic dust gas in dusty gas passes moisture film adsorption of dust layer under the effect of negative pressure enters to rotate and blocks in the chamber of dirt filter cylinder 2.3.The dust of another road dusty gas directly enters in the liquid in dust stillpot 2.4 simultaneously, after the rotation moisture film adsorption of dust layer blocked on dirt filter cylinder 2.3 is eliminated, the rotation of operation in dust stillpot 2.4 liquid is blocked dirt filter screen and is reduced liquid, the resistance that gas passes through, directly enter dusty gas in dust stillpot in liquid and liquid to merge and form liquid, dirt, gas mixture, liquid, dirt, gas mixture is under the effect of negative pressure gravitation, it is greater than and rotates the dust blocking dirt aperture of filter screen and be intercepted in the liquid in dust stillpot 2.4, be less than and rotate the air water dust particale thing blocking dirt aperture of filter screen and enter to rotate and block in the chamber of dirt filter cylinder 2.3, air water dust particale thing rotates the micronic dust gas and vapor permeation blocking dirt filter cylinder 2.3 chamber and forms aerosol mixtures with entering through moisture film adsorption of dust layer, this aerosol mixtures passes to rotate and blocks dirt filter cylinder 2.3 inner chamber and enter gas purification district 2.8 in dust-removing box.
B, dust are separated with filter cylinder
The rotation defining moisture film adsorption of dust layer blocks dirt filter cylinder 2.3 uniform rotation by dust stillpot 2.4, it is crossing that moisture film adsorption of dust layer and the liquid in dust stillpot 2.4 produce rolling tangential, moisture film adsorption of dust layer is subject to the reverse shock of liquid in dust stillpot 2.4, moisture film adsorption of dust aspect and rotation are blocked dirt filter cylinder 2.3 and are separated, and the dust collection after separation is in dust stillpot 2.4.Simultaneously in order to further improve the effect removed and be adsorbed on and rotate the moisture film adsorption of dust layer blocked on dirt filter cylinder 2.3, the rolling hairbrush 2.7 blocking dirt filter cylinder 2.3 top by being located at rotation is cleaned with water in real time to being adsorbed on the rotation moisture film adsorption of dust layer blocked on dirt filter cylinder 2.3.Thus periodically clear up being adsorbed on the rotation moisture film adsorption of dust layer blocked on dirt filter cylinder 2.3, not only effectively ensure that to rotate and block the gas permeability that dirt filter cylinder metal considers net, also ensure that interception dust granules thing is by the stability of quantitatively tackling, and further improves the accuracy class of interception dust.
C, dust particale control of dust
Enter dust in dust stillpot 2.4 liquid and liquid merges, form dirt liquid mixture, this dirt liquid mixture rotates the acting in conjunction of slope base plate 2.17 sliding force of blocking dirt filter cylinder 2.3 thrust and centrifugal force and be located at dust stillpot 2.4 bottom in taper under, make dirt liquid mixture enter the dust settling district of dust stillpot 2.4 bottom, discharge after fine particulates being cohered into dust granules by the adhesive be sprayed in dust stillpot 2.4.
In order to remove the micronic dust in the aerosol mixtures of dust arrester output further, present invention employs following gas-water separation method:
A, aerosol mixtures carried out to air water and accelerate to be separated
Under blower fan graviational interaction, aerosol mixtures introduces aerosol accelerating chamber 3.3 by the import 3.5 of aerosol mixtures, when aerosol mixtures flows through break-in place of aerosol accelerating chamber 3.3, volume increases, the flow velocity of aerosol mixtures and gravitation reduce, thus accelerate the condensation of the aerosol of aerosol mixtures, form dust-laden water droplet, the free skating of dust-laden water droplet drops down onto in liquid collecting bucket, and slight aerosol mixtures accelerates to transport to the covert room of aerosol by the delivery outlet that aerosol accelerating chamber 3.3 shrinks.
B, aerosol mixtures carry out break-in gas-water separation
Slight aerosol mixtures after acceleration enters in many groups break-in split channel 3.7 of being separated into by gas-water separation deflector 3.2, under the promotion of air-flow, the aerosol mixtures of high flow rate carries out repetitious refraction collision in circulation passage 3.7, further aerosol separation is carried out to the aerosol mixtures of input, droplet in aerosol is changed from small to big, the free skating of dust-laden water droplet drops down onto in liquid collecting bucket, and the aerosol mixtures containing micronic dust outputs to deceleration spray chamber.
C, aerosol mixtures carry out deceleration gas-water separation
What the aerosol mixtures containing micronic dust introduced deceleration spray chamber 3.4 by the input port of expansion disperses covert circulation passage, the volume flowing through passage due to slight aerosol mixtures increases suddenly, the flow velocity of aerosol mixtures and gravitation are reduced, thus accelerate the condensation of the aerosol of aerosol mixtures, further gas-water separation is carried out to the aerosol mixtures containing micronic dust, the free skating of dust-laden water droplet drops down onto in liquid collecting bucket, and the aerosol mixtures of ultra micro dirt is discharged.
In order to further remove the micronic dust in aerosol mixtures, the present embodiment additionally uses centrifugal gas-water separation method:
Under blower fan graviational interaction, the aerosol mixtures of ultra micro dirt is introduced in the aerosol separation chamber 4.4 in enclosed housing 4.2, aerosol mixtures directly acts on the centrifugal filter cylinder 4.6 of High Rotation Speed, what the reaction force that aerosol mixtures shock rotating centrifugal filter cylinder produces and the centrifugal force that rotating centrifugal filter cylinder produces were formed makes a concerted effort, got rid of by droplet in aerosol mixtures on the inwall of enclosed housing 4.2, droplet enters in mixture collecting bin 4.14 through drip pan 4.11.Clean gas discharges through the inner cavity chamber of rotating centrifugal filter cylinder 4.6 and dust free room 4.5.
Claims (9)
1. a dust collection method for dusty gas, is characterized in that it comprises the following steps:
A, moisture film the aspiration of negative pressure
By dusty gas, the dust introduced in closed dust-removing box revolves filter adsorption chamber, and the dust in next road dusty gas of blower fan graviational interaction blocks with rotation the moisture film that dirt filter cylinder filter screen is formed and blends, and forms moisture film adsorption of dust aspect; The dust of another road dusty gas directly enters in the liquid in dust stillpot, formed aerosol mixtures by the two-way micronic dust gas after dedusting rotating in the chamber of blocking dirt filter cylinder, aerosol mixtures passes to rotate and blocks dirt filter cylinder inner chamber and enter gas purification district in dust-removing box;
B, dust are separated with filter cylinder
It is crossing with the liquid in rotation tangent line in the dust stillpot being located at closed dust-removing box bottom that dirt filter cylinder is blocked in rotation, and moisture film adsorption of dust aspect and rotation are blocked dirt filter cylinder and be separated; Dust collection after separation is in dust stillpot;
C, dust particale control of dust.
2. the dust collection method of dusty gas according to claim 1, is characterized in that it is further comprising the steps of:
Under blower fan graviational interaction, gas-water separation is carried out to aerosol mixtures:
A, aerosol mixtures carried out to air water and accelerate to be separated
Carry out air water by the contraction break-in circulation passage of aerosol accelerating chamber to aerosol mixtures to accelerate to be separated, the free skating of dust-laden water droplet drops down onto in liquid collecting bucket, and slight aerosol mixtures accelerates to transport to the covert room of aerosol;
B, aerosol mixtures carry out break-in gas-water separation
Carry out gas-water separation to aerosol mixtures further by many groups break-in split channel of aerosol break-in indoor, the free skating of dust-laden water droplet drops down onto in liquid collecting bucket, and the aerosol mixtures containing micronic dust outputs to deceleration spray chamber;
C, aerosol mixtures carry out deceleration gas-water separation
Further carry out gas-water separation to the aerosol mixtures containing micronic dust by the covert circulation passage of dispersing of deceleration spray chamber, the free skating of dust-laden water droplet drops down onto in liquid collecting bucket, and the gas of ultra micro dirt is discharged.
3. the dust collection method of dusty gas according to claim 1 and 2, is characterized in that it is further comprising the steps of:
Aerosol mixtures is introduced in the aerosol separation chamber in enclosed housing under blower fan graviational interaction, by rotating centrifugal cylinder, gas-water separation is carried out to aerosol mixtures, the free skating of dust-laden water droplet drops down onto in drip pan, and clean gas is discharged after the inner cavity chamber and dust free room of rotating centrifugal filter cylinder.
4. the dust arrester of a dusty gas, it comprises blocks dirt filter cylinder and seal diaphragm by closed dust-removing box and the rotation be located in casing, dust stillpot and air-introduced machine are formed, dust-removing box inner chamber is separated into dust and revolves and consider adsorption chamber and gas purifying area and dust stillpot by seal diaphragm, rotation is blocked dirt filter cylinder and is assemblied in dust and revolves and consider in adsorption chamber, worry adsorption chamber is revolved by dusty gas entrance and dust, rotate the chamber and gas purification district formation negative-pressure gas circulation passage that block dirt filter cylinder, the delivery outlet of gas purification circulation passage is located at by air-introduced machine, it is characterized in that dust stillpot is located at the bottom in dust-removing box, its stillpot is built with adsorbing powder dust liquid, rotating the lower end cambered surface of blocking dirt filter cylinder invades in adsorbing powder dust liquid, dust revolves to consider adsorption chamber and rotate outer shroud week of blocking dirt filter cylinder and adsorbing powder dust liquid formation adsorbing powder dust and dust and rotation and blocks the working path that dirt filter cylinder is separated.
5. the dust arrester of dusty gas according to claim 4, is characterized in that dust that said corresponding rotation blocks dirt filter cylinder top revolves to consider in adsorption chamber and is equipped with and rotates the rolling hairbrush blocking dirt filter cylinder extrados and match.
6. the dust arrester of the dusty gas according to claim 4 or 5, is provided with in the dusty gas entrance that it is characterized in that said closed dust-removing box and blocks dirt plate.
7. the dust arrester of dusty gas according to claim 4, is characterized in that the profile that dirt filter cylinder is blocked in said rotation is a cone post shapes.
8. the dust arrester of dusty gas according to claim 4, it is characterized in that it also comprises a gas and water separator, this device is by case supports frame and be assemblied in the liquid collecting bucket that case supports frame is interconnected successively, aerosol accelerating chamber and the covert room of aerosol and deceleration spray chamber are formed, described aerosol accelerating chamber is a contraction covert circulation passage formula structure, the import of aerosol mixtures becomes an angle of 90 degrees with between delivery outlet, delivery outlet is communicated with the covert room of aerosol, aerosol break-in indoor are provided with gas-water separation deflector, the circulation passage of aerosol mixtures is formed between deflector, the delivery outlet of aerosol break-in room is connected with deceleration spray chamber, deceleration spray chamber is disperse covert circulation passage formula structure, the import of aerosol mixtures becomes an angle of 90 degrees with between delivery outlet.
9. the dust arrester of the dusty gas according to claim 4 or 8, it is characterized in that it also comprises a centrifugal water separator, this device is by bracing frame and be assemblied in the enclosed housing on bracing frame and the rotating centrifugal cylinder be assemblied in casing is formed, closed enclosure intracoelomic cavity is separated into aerosol separation chamber and dust free room by locellus dividing plate, rotating centrifugal filter cylinder is assemblied in aerosol separation chamber, the bottom of enclosed housing is drip pan, drip pan is connected with aerosol separation chamber, negative-pressure gas circulation passage is formed by the import of aerosol mixtures and the inner cavity chamber of rotating centrifugal filter cylinder and dust free room, the gas delivery port of dust free room is located at by air-introduced machine, the inwall of enclosed housing and drip pan form the assembly collection channel of dust-laden water droplet.
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| CN201610068663.6A CN105498432A (en) | 2016-02-02 | 2016-02-02 | Dusty gas dedusting method and device |
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| CN201610068663.6A CN105498432A (en) | 2016-02-02 | 2016-02-02 | Dusty gas dedusting method and device |
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| CN108375118A (en) * | 2018-03-27 | 2018-08-07 | 刘俊腾 | A kind of factory's dust control equipment conducive to environmental protection |
| CN108465330A (en) * | 2018-05-30 | 2018-08-31 | 中国航空制造技术研究院 | A kind of purifier and method of dusty gas |
| CN114425208A (en) * | 2020-09-17 | 2022-05-03 | 中国石油化工股份有限公司 | Scale pan and dirty gas cleaning device |
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