CN101244356B - Combined purifying method and device - Google Patents
Combined purifying method and device Download PDFInfo
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- CN101244356B CN101244356B CN 200810300693 CN200810300693A CN101244356B CN 101244356 B CN101244356 B CN 101244356B CN 200810300693 CN200810300693 CN 200810300693 CN 200810300693 A CN200810300693 A CN 200810300693A CN 101244356 B CN101244356 B CN 101244356B
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Abstract
The invention discloses a combined purifying method and the device; wherein, the method is characterized in that: the cyclone dedusting and filter bag dedusting are combined into a whole, and two-grade dedusting method is adopted. The first grade is the cyclone dedusting; the air with dust enters a rotary flue along the wall of a purifier and rotates at a high speed in the annular rotary flue; under the action of the centrifugal force, the solid particles in the dust air are separated from the air at first, and deposit at the bottom of a dust hopper arranged below the purifier. The second grade is filter bag dedusting; the dust air undergoing the first grade cyclone dedusting enters a filter bag chamber through a plurality of ring holes in the annular rotary flue from the bottom up; the filter bag is arranged in the filter bag chamber and used for fending the fine particles remained in the dust air outside the filter bag; the purified air enters a clean air chamber and is exhausted out from an air outlet of the clean air chamber. The combined dedusting method has the advantages of improved dedusting efficiency and/or purifying efficiency of the air with dust, and reducing the maintenance workload and the floor area of the equipment.
Description
Technical field
The present invention relates to a kind of combined purification method and device, belong to the udst separation technical field of dusty gas.
Background technology
In metal smelt, contain amounts of dust in the dusty gas of discharge, the dust that needs will contain in the dusty gas carries out recycling through recovery system, also need the pernicious gas in the dusty gas be utilized adsorbents adsorb to purify simultaneously.The different chemical character of pernicious gas in different metal that adsorbent reclaims as required or the gas, the flour of employing different chemical character, the adsorbent behind the absorption pernicious gas also needs to recycle.In order to improve efficiency of dust collection and purification efficiency; Preferably dusty gas and/or pernicious gas are carried out multi-stage separation and/or purification, generally all needs the occupation of land of bigger equipment input and equipment and operating maintenance expense all higher but carry out multi-stage separation and/or multistage purification.
In present sack cleaner; Generally be that dusty gas directly is blown in the deduster; Make that the airflow field in the deduster is seriously unbalance, one-sided air-flow local velocity is too fast in the general casing, makes that the dust that adheres on the sack cleaner is extremely inhomogeneous; Make the windward side of cloth bag can't stick solid particle, and a large amount of particle aggregations is at the lee face of cloth bag.Because the solid particulate distributions on the filter bag is uneven, the gas permeability of windward side is better, and part particle and pernicious gas pass filter bag and enter into air-purifying chamber, and the purification efficiency of system and efficiency of dust collection can't be improved.In addition, because there are very big difference in cloth bag windward side and lee face both sides flow velocity, the bag face of filter bag is washed away in Dual-Phrase Distribution of Gas olid from the windward side, cause the too early damage of cloth bag of innings cloth, has increased the maintenance workload of system.
Summary of the invention
The object of the present invention is to provide a kind of combined purification method efficiently and device,, reduce the floor space of maintenance load and equipment to improve the efficiency of dust collection and/or the purification efficiency of dusty gas.
The present invention is achieved in that combined purification method of the present invention is that rotational flow dust-removing and filter bag dedusting are combined into one, and adopts two-stage dust removal; The first order is a rotational flow dust-removing; Dusty gas gets into the rotation flue along purifying wall; Dusty gas is in the rotation flue high speed rotation of annular; Under action of centrifugal force, the solid particle in the dusty gas is separated from dusty gas in advance, be deposited in the ash bucket bottom along the ash bucket of clarifier bottom; The second level is the filter bag dedusting; Dusty gas behind first order rotational flow dust-removing from the bottom to top entering filter bag chamber from the rotation flue annular distance of annular; Filter bag is provided with filter bag in the chamber; Filter bag is blocked in remaining fine particle in the dusty gas in the filter bag, and purified gas gets into air-purifying chamber, discharges from the air outlet of air-purifying chamber.
In the above-mentioned combined purification method, describedly, the airflow uniform distribution plate of the dusty gas behind the first order rotational flow dust-removing in the rotation flue annular distance that is located at annular get into the filter bag chamber after eliminating or weaken swirling flow.
In the aforesaid combined purification method; Bottom inlet place in said filter bag chamber is blown into adsorbent, improves fresh adsorbent ratio on the filter bag, through the contact suction-operated of equally distributed adsorbent layer on the filter bag; Nuisance in the dusty gas is adsorbed on the adsorbent, improves purification efficiency.
In the aforesaid combined purification method, the dust that adheres to after filtering on the said filter bag is used the compressed air reverse gas cleaning, discharges from the cinder-discharging port of ash bucket bottom.
A kind of combination purification device of the present invention is: it constitutes by three sections, and hypomere is an ash bucket 3, and the stage casing is filter bag chamber 5, and epimere is an air-purifying chamber 7; The bottom of ash bucket 3 is provided with cinder-discharging port 11; Between the junction of ash bucket 3 and filter bag chamber 5, be provided with the rotation flue 2 of annular, rotation flue 2 is provided with air inlet 1; Be provided with filter bag 6 in the filter bag chamber 5; Air-purifying chamber 7 is provided with air outlet 8.
In the above-mentioned combination purification device, be provided with airflow uniform distribution plate 4 in the annular distance that described rotation flue 2 surrounds.
In the aforesaid combination purification device, the bottom inlet place of said filter bag chamber 5 is provided with fresh adsorbent splash loading pipe 12; The exit is provided with reverse-blow pipe 9, and reverse-blow pipe 9 is connected with the bag 10 of calming the anger.
Described filter bag 6 is circular outside filtering type cloth bag.
Compared with prior art; Owing to adopted the rotation flue among the present invention; Dusty gas was separated the particle in the dusty gas earlier before getting into the filter bag chamber in advance, got into the solid particle that contains in the air-flow of filter bag chamber and significantly reduced, and had reduced solid particle washing away filter bag; Can prolong the service life of filter bag, reduce maintenance workload; Because the present invention has also adopted the airflow uniform distribution plate; Get into the dust air-flow elimination of filter bag chamber or weakened eddy flow, air-flow gets into the filter bag chamber more uniformly, makes that the duty ratio of cloth bag is more even; Be blown into adsorbent in bottom, filter bag chamber simultaneously; Improved the ratio of fresh adsorbent, strengthened suction-operated, can improve the efficient of dedusting and/or purification pernicious gas.This deduster is compared with two-step filter, has not only reduced system and equipment investment, reduces floor space, and has reduced energy consumption, has reached the purpose of energy-saving and emission-reduction.
Description of drawings
Accompanying drawing 1 is a purifier sketch map used in the present invention;
Accompanying drawing 2 is side views of accompanying drawing 1;
Accompanying drawing 3 is vertical views of accompanying drawing 1;
Being labeled as in the accompanying drawing: the 1-air inlet, 2-rotates flue, 3-ash bucket, 4-airflow uniform distribution plate, 5-filter bag chamber, 6-filter bag, 7-air-purifying chamber, 8-air outlet, 9-reverse-blow pipe, the 10-bag of calming the anger, 11-cinder-discharging port, 12-charge pipe.
The specific embodiment
Embodiments of the invention: combined purification method of the present invention such as Fig. 1, Fig. 2 and shown in Figure 3.This method is that rotational flow dust-removing and filter bag dedusting are combined into one, and adopts two-stage dust removal; The first order is a rotational flow dust-removing; Dusty gas gets into rotation flue 2 along purifying wall; Rotation flue 2 lower openings, dusty gas is in the rotation flue 2 high speeds rotation of annular, under action of centrifugal force; Solid particle in the dusty gas is separated from dusty gas in advance, be deposited in ash bucket 3 bottoms along the ash bucket 3 of clarifier bottom; The second level is the filter bag dedusting; Dusty gas behind first order rotational flow dust-removing from the bottom to top entering filter bag chamber 5 from the annular distance of the rotation flue 2 of annular; Be provided with airflow uniform distribution plate 4 in the annular distance of rotation flue 2, the feasible dust air-flow that gets into filter bag chamber 5 is eliminated or has been weakened eddy flow, and air-flow gets into filter bag chamber 5 more uniformly; Filter bag 6 duty ratios in the filter bag chamber 5 are more even like this, and filter bag 6 is blocked in remaining fine particle in the dusty gas outside the filter bag 6 uniformly; Be provided with charge pipe 12 in the porch of filter bag chamber 5; Charge pipe 12 is blown into adsorbent, improves fresh adsorbent ratio on the filter bag, through the contact suction-operated of equally distributed adsorbent layer on the filter bag; Nuisance in the dusty gas is adsorbed on the adsorbent, to improve purification efficiency; Purified gas gets into air-purifying chamber 7, and the air outlet 8 from air-purifying chamber 7 is discharged; The dust that adheres to after filtering on the filter bag 6 blows off with reverse-blow pipe 9, discharges from the cinder-discharging port 11 of ash bucket 3 bottoms.
The employed combination purification device of method of the present invention, it constitutes by three sections, and hypomere is an ash bucket 3, and the stage casing is filter bag chamber 5, and epimere is an air-purifying chamber 7; During making, produce cinder-discharging port 11 in the bottom of ash bucket 3; Between the junction of ash bucket 3 and filter bag chamber 5, install the rotation flue 2 of annular, on rotation flue 2, produce air inlet 1; In filter bag chamber 5, install filter bag 6; On air-purifying chamber 7, be provided with air outlet 8; In the annular distance that rotation flue 2 surrounds, install airflow uniform distribution plate 4; Install the charge pipe 12 that is used for the fresh adsorbent injection in the porch of filter bag chamber 5; Install reverse-blow pipe 9 in the exit of filter bag chamber 5, reverse-blow pipe 9 is connected with the bag 10 of calming the anger; Its filter bag 6 preferably adopts the circular outside filtering type cloth bag of selling on the market.
The course of work of the present invention is following:
Dusty gas is blown into the rotation flue along the wall of purifier, and dusty gas is in the rotation of rotation flue high speed, and the solid particle in the dusty gas is thrown on the wall of purifier because centrifugal force is bigger, is slipped in the ash bucket along wall.The bottom of rotation flue is an opening; Gas after rotating from the bottom of rotation flue through the annular distance of rotation flue that is located at annular from the bottom to top entering filter bag chamber; In the annular distance of rotation flue, be provided with the airflow uniform distribution plate, the airflow uniform distribution plate moves upward after the air-flow that rotates is stopped, can eliminate the eddy flow of gas; Make air-flow get into the filter bag chamber more uniformly, but the dust in the filter bag filtering gas in the filter bag chamber.In the filter bag chamber, also be blown into fresh adsorbent through charge pipe, the pernicious gas in the adsorbable gas of adsorbent reaches the effect of Purge gas.Clean gas after filter the filter bag chamber gets into air-purifying chamber at last, discharges from the air outlet of air-purifying chamber.Purifier can adhere to very thick one deck dust, at this moment the gas permeability variation of filter bag after using a period of time on the filter bag; Top at filter bag is provided with reverse-blow pipe; When needs were removed the dust on the filter bag, available compressed air was oppositely dried from the outlet of filter bag, and the dust that adheres on the filter bag is blown off; At last the cinder-discharging port of ash bucket below is opened dust in the removing purifier and the adsorbent after the use.
Claims (4)
1. combined purification method, it is characterized in that: this method is that rotational flow dust-removing and filter bag dedusting are combined into one, and adopts two-stage dust removal; The first order is a rotational flow dust-removing; Make dusty gas get into the rotation flue along purifying wall; Dusty gas is in the rotation flue high speed rotation of annular; Under action of centrifugal force, the solid particle in the dusty gas is separated from dusty gas in advance, be deposited in the ash bucket bottom along the ash bucket of clarifier bottom; The second level is the filter bag dedusting; Dusty gas behind first order rotational flow dust-removing from the bottom to top entering filter bag chamber from the rotation flue annular distance of annular; Filter bag is equipped with filter bag in the chamber; Filter bag is blocked in remaining fine particle in the dusty gas outside the filter bag, and purified gas gets into air-purifying chamber, discharges from the air outlet of air-purifying chamber; Describedly, the airflow uniform distribution plate of the dusty gas behind the first order rotational flow dust-removing in the rotation flue annular distance that is located at annular get into the filter bag chamber after eliminating or weaken swirling flow; Porch in said filter bag chamber sprays into adsorbent, improves fresh adsorbent ratio on the filter bag, and the contact suction-operated through equally distributed adsorbent layer on the filter bag is adsorbed on the nuisance in the dusty gas on the adsorbent, improves purification efficiency.
2. combined purification method according to claim 1 is characterized in that: the dust that adheres to after filtering on the said filter bag is used the compressed air reverse gas cleaning, discharges from the cinder-discharging port of ash bucket bottom.
3. combination purification device, it is characterized in that: it constitutes by three sections, and hypomere is ash bucket (3), and the stage casing is filter bag chamber (5), and epimere is air-purifying chamber (7); The bottom of ash bucket (3) is provided with cinder-discharging port (11); Between the junction of ash bucket (3) and filter bag chamber (5), be provided with the rotation flue (2) of annular, rotation flue (2) is provided with air inlet (1); Be provided with filter bag (6) in the filter bag chamber (5); Air-purifying chamber (7) is provided with air outlet (8); Be provided with airflow uniform distribution plate (4) in the annular distance that described rotation flue (2) surrounds; The bottom inlet place of filter bag chamber (5) is provided with fresh adsorbent splash loading pipe (12); The exit is provided with reverse-blow pipe (9), and reverse-blow pipe (9) is connected with the bag (10) of calming the anger.
4. combination purification device according to claim 3 is characterized in that: described filter bag (6) is circular outside filtering type cloth bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810300693 CN101244356B (en) | 2008-03-24 | 2008-03-24 | Combined purifying method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810300693 CN101244356B (en) | 2008-03-24 | 2008-03-24 | Combined purifying method and device |
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| CN101244356A CN101244356A (en) | 2008-08-20 |
| CN101244356B true CN101244356B (en) | 2012-12-05 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773754A (en) * | 2010-03-26 | 2010-07-14 | 贵阳铝镁设计研究院 | Bag-type dust remover for dry purifying system |
| CN104200860B (en) * | 2014-09-05 | 2017-01-18 | 上海华畅环保设备发展有限公司 | Coolant rotational-flow purification method and device for boron removal section of boron recycle system |
| CN107126794B (en) * | 2015-06-03 | 2019-07-05 | 南通宏泰机械制造有限公司 | A kind of absorption cleaning method of two fans dust absorbing clarifier |
| CN105713692B (en) * | 2016-01-28 | 2018-05-15 | 青岛华睿能源科技有限责任公司 | A kind of methane purification filtration drying device |
| CN106221819B (en) * | 2016-08-29 | 2019-02-19 | 合肥合意环保科技工程有限公司 | A kind of blast furnace gas pocket type dust removing device |
| CN106362529A (en) * | 2016-11-01 | 2017-02-01 | 凯天环保科技股份有限公司 | High-efficiency adsorbing and purifying device |
| CN109750172B (en) * | 2019-03-20 | 2023-09-26 | 中南大学 | Combined dust collector and copper bottom blowing smelting equipment |
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| GB1534019A (en) * | 1974-11-18 | 1978-11-29 | Atelier Dandy | Air cleaners |
| CN2146298Y (en) * | 1992-12-17 | 1993-11-17 | 唐甦 | High-efficient dust remover |
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| CN101244356A (en) | 2008-08-20 |
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