CN105854477A - Self-circulation purification method for smoke dust - Google Patents

Self-circulation purification method for smoke dust Download PDF

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Publication number
CN105854477A
CN105854477A CN201610191571.7A CN201610191571A CN105854477A CN 105854477 A CN105854477 A CN 105854477A CN 201610191571 A CN201610191571 A CN 201610191571A CN 105854477 A CN105854477 A CN 105854477A
Authority
CN
China
Prior art keywords
air
flue dust
purification
filter
self
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
Application number
CN201610191571.7A
Other languages
Chinese (zh)
Inventor
李谊
刘海涛
王建华
孙赛
吴修平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Liwei Environmental Protection Equipment Co Ltd
Original Assignee
Qingdao Liwei Environmental Protection Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao Liwei Environmental Protection Equipment Co Ltd filed Critical Qingdao Liwei Environmental Protection Equipment Co Ltd
Priority to CN201610191571.7A priority Critical patent/CN105854477A/en
Publication of CN105854477A publication Critical patent/CN105854477A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0019Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/0023Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0057Regenerating the filter material in the filter
    • B01D46/0067Regenerating the filter material in the filter by acting counter-currently on the filtering surface (e.g. flushing)
    • B01D46/0068Regenerating the filter material in the filter by acting counter-currently on the filtering surface (e.g. flushing) with pressurised gas, e.g. pulsed air
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of devices for separating particles from gases or vapours
    • B01D50/002Combinations of devices relating to groups B01D45/00 and B01D46/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area

Abstract

The invention discloses a self-circulation purification method for smoke dust. The method comprises the steps: (I) carrying out high-position air supplying from an air supply outlet, and meanwhile, carrying out low-position air suction from an air suction port, so as to enable a smoke dust layer to flow into the air suction port under the action of negative pressure; (II) carrying out smoke dust purification: (1) carrying out first-stage filtering; (2) carrying out medium-efficiency filtering; (3) carrying out high-efficiency purification; and (4) carrying out pulse back flushing; and (III) filtering organic waste gases and heavy metals: in a clean room, subjecting air obtained from the step (3) to further purification through an activated-charcoal adsorption device which is arranged in front of the air supply outlet, so as to purify the contained organic waste gases and heavy metals. According to the self-circulation purification method for the smoke dust, the efficient purification of the smoke dust resulted from a cutting or welding process of large-sized and ultra-large-sized workpieces of a machining workshop can be achieved; and the investment is small, the operating cost is low, the method is energy-saving, and the operation is convenient.

Description

A kind of flue dust self-circulation purifying method
Technical field
The invention belongs to field of Environment Protection, be specifically related to a kind of flue dust self-circulation purifying method.
Background technology
In engineering shop, the cutting of large-scale workpiece, ultra-large workpiece or welding process will necessarily be produced Raw a lot of flue dust, dust, it is therefore desirable to carry out purified treatment.Currently for large-scale cutting or welding car Between the method for clarifying smoke taked specifically include that
Air-suction cover is collected: this control measures needs at station collecting hood installed above mouth.If cover mouth is installed The lowest, then affect shop worker's work;If setting height(from bottom) Gao Ze easily causes during flue dust collecting Escaping, collecting effect is undesirable;Especially for the highest workpiece, cover mouth is collected need to use pipe Road connects each cover mouth, and mostly there are driving and other pipelines in existing industrial undertaking workshop, and therefore this is System has bigger difficulty when design and installation, and the engineering construction cycle is long, and systematic air flow is big, system Construction, Operation and maintenance cost are the highest.
Local air draft comprehensively: this control measures is that the zone isolation that workshop produces dust is opened, and needs to build If airtight room.This results in system Construction high cost, related request system Construction need to be met Exhaust air rate accurately calculated, to design and construct the most relatively cumbersome.Which is administered flue dust and is also required to Use pipeline that waste gas causes outdoor overhead discharge.Existing industrial undertaking workshop mostly have driving and His pipeline, the pipeline drawn outside waste gas will affect the construction of these pipelines and driving and use.Therefore this is System has bigger difficulty when design and installation, and the engineering construction cycle is long, and systematic air flow is big, system Construction, Operation and maintenance cost are the highest;Very flexible, during plant process change, system cannot adapt to, impact Workshop is attractive in appearance.
Air draft comprehensively: air draft is exactly to be replaced by the air in whole workshop comprehensively, sets in workshop Put exhaust outlet, either inside air is discharged, air outlet is additionally set in workshop, by outside workshop New wind is sent in workshop.This type of mode administer be in fact local general ventilation enlarged version.This system is controlled Reason seldom has enterprise can afford cost of investment and the operation maintenance cost of great number.General standard The annual operation cost of Factory Building just can be the most millions of.
Universal air suction arm is collected: universal air suction arm collects flue dust in the environmental protection industry (epi) quite a long time It is inside ideal administration way, but continuing to increase along with facility capacity, production requirement is not The disconnected shortcoming promoting which gradually displays.Using air suction arm to collect needs workman to pull air suction arm Near pad, this adds increased the amount of labour of workman, reduce production efficiency.Air suction arm is collected Flue dust is also required to use pipeline to connect, and it has equally collects the problem as flue gas with air-suction cover. Air suction arm collects flue dust has huge limitation, every air suction arm maximum to collect model on capture range Enclosing general all at below 4m, if plus extension rod, maximum can arrive 7m.And which needs in weldering Collecting near contact, this is for some bigger workpiece, or the workpiece such as tank body, casing is just not suitable for.
Summary: above each technology all also exists long construction period, system footprint area is big, system maintenance The difficult problems such as cost is high, be not suitable for large-scale workpiece, and operation cost is high.
Summary of the invention
In order to solve in above-mentioned engineering shop large-scale workpiece, ultra-large workpiece cutting or welding process Problem existing for clarifying smoke method, the invention provides a kind of flue dust self-circulation purifying method, should Method uses flue dust self-circulation purifying all-in-one, can realize flue dust high-efficient purification, and small investment, operation Conveniently, operating cost is low, energy-conservation.
In order to realize the present invention, the technical solution used in the present invention is as follows:
A kind of flue dust self-circulation purifying method, the method uses flue dust self-circulation purifying all-in-one, by cigarette Dirt self-circulation purifying all-in-one inlet scoop one be placed on flue dust source produce side, operative employee opposite:
The first step, flue dust collecting: an air outlet high position is blown so that workshop air is shape on certain altitude Become the air-supply layer of stable bottom horizontal flow sheet, and utilize this air-supply layer to block flue dust to diffuse up, inhale simultaneously Lower air port air draught, makes dust layer flow into inlet scoop under suction function.
Second step, clarifying smoke:
(1) single filter: the flue dust of collection enters single filter net, utilizes single filter net to make cigarette Colliding of dirt, extinguishes spark, reduces temperature, filters oarse-grained flue dust simultaneously, and this flue dust enters Enter ash bucket;
(2) medium air filtration: entering medium effeciency filter through the flue dust of step (1), to carry out medium air filtration clean Change;
(3) high-efficient purification: through the air entrance clean room of step (2) filtration, purification, in clean room In, the most oarse-grained flue dust is directly down to ash bucket under action of gravity with air upflow effect In, tiny microgranule is filtered purification by filter blocks at its outer surface, clean gas After, filter center flow into toilet;
(4) pulse backblowing: utilize compressed air bag to be blown into by the graininess flue dust of filter outer skin Ash bucket;
3rd step, organic exhaust gas and heavy metal filter: in toilet, and the air of step (3) leads to Before crossing air outlet arrange absorbent charcoal adsorber purify further containing organic exhaust gas and heavy metal.
An air outlet high position described above air-supply flow velocity is more than inlet scoop low level air draught flow velocity, the sky of air-supply layer Gas flows downward the gas that supplementary dust layer is pumped;Diffuse to the flue dust of air-supply layer also in this process In be brought into lower floor, flow into the flue dust built-in circularly purifying of self-circulation purifying all-in-one along with air System purification, the air after purification enters again air-supply layer addition and circulates next time.
During above-mentioned high-efficient purification, filter is during filtrating smoke dust, and surface is constantly gathered Weldering dirt, tiny weldering dirt is gathered in filter cylinder surface and forms one layer of superfine tunic, and the existence of tunic is more The strong filtering accuracy of filter element.
One flue dust self-circulation purifying method of the present invention, the flue dust self-circulation purifying one that the method uses Machine is the patent equipment that applicant applies on the same day, and it specifically includes:
A kind of flue dust self-circulation purifying all-in-one, it include ash bucket, clean room, compressed air bag, Toilet, described ash bucket is arranged on the lower section of clean room, and toilet is arranged on the top of clean room; The side of clean room offers inlet scoop, is provided with several filters, sets above filter in clean room There is compressed air bag;The side of toilet offers air outlet.
Front end, inlet scoop described above is sequentially provided with single filter net, medium air filtration net.
Air outlet front end described above is provided with absorbent charcoal adsorber.
Single filter net described above is wire netting, is preferentially aluminum metal net.
Accompanying drawing explanation
Fig. 1 is flue dust self-circulation purifying all-in-one machine structure schematic diagram involved by the present invention;
Fig. 2 is flue dust self-circulation purifying all-in-one B-B structural representation involved by the present invention;
Fig. 3 is one flue dust self-circulation purifying procedure schematic diagram of the present invention.
Detailed description of the invention:
Below in conjunction with embodiment, the present invention is further elaborated.It should be noted that the present embodiment is In conjunction with concrete preferred implementation further description made for the present invention, it is impossible to assert this Bright detailed description of the invention is only limitted to this, comes for general technical staff of the technical field of the invention Say, without departing from the inventive concept of the premise, it is also possible to make some simple deduction or replace, All should be considered as belonging to the present invention and be determined scope of patent protection by the claims submitted to.
Embodiment 1:
A kind of flue dust self-circulation purifying method, the method uses flue dust self-circulation purifying all-in-one, such as figure 1,2, this flue dust self-circulation purifying all-in-one: include ash bucket 1, clean room 2, compressed air bag 3, toilet 4, described ash bucket is arranged on the lower section of clean room 2, and toilet 4 is arranged on only Change the top of room 2;The side of clean room 2 offers inlet scoop 5, is provided with several in clean room 5 Filter 6, filter 6 is arranged over compressed air bag 3;The side of toilet 4 offers air-supply Mouth 7.Front end, inlet scoop 5 described above is sequentially provided with single filter net 8, medium air filtration net 9. Air outlet described above is provided with absorbent charcoal adsorber 10.Single filter net 8 described above is gold Belong to net, be preferentially aluminum metal net.
As shown in Figure 1, Figure 2, Fig. 3, a kind of flue dust self-circulation purifying method, its use above-mentioned flue dust from Circularly purifying all-in-one: flue dust self-circulation purifying all-in-one inlet scoop 5 one is placed on flue dust source and produces Side, operative employee opposite:
The first step, flue dust collecting: the high-order air-supply of air outlet 7 so that workshop air is on certain altitude Form the air-supply layer of stable bottom horizontal flow sheet, and utilize this air-supply layer to block flue dust to diffuse up, simultaneously Inlet scoop 5 low level air draught, makes dust layer flow into inlet scoop 5 under suction function.
Second step, clarifying smoke:
(1) single filter: the flue dust of collection enters single filter net 8, utilizes single filter net 8 Make colliding of flue dust, extinguish spark, reduce temperature, filter oarse-grained flue dust, this cigarette simultaneously Dirt enters ash bucket 1;
(2) medium air filtration: through step (1) flue dust enter medium effeciency filter 9 carry out medium air filtration Purify;
(3) high-efficient purification: through the air entrance clean room 2 of step (2) filtration, purification, purifying In room 2, the most oarse-grained flue dust is directly down to dust stratification under action of gravity with air upflow effect In bucket 1, tiny microgranule is blocked in its outer surface by filter 6, and clean gas is through filter 6 After filtration, purification, filter center flow into toilet 4;
(4) pulse backblowing: utilize compressed air bag 3 by the graininess flue dust of filter 6 outer surface Blow into ash bucket 1;
3rd step, organic exhaust gas and heavy metal filter: in toilet 4, the air of step (3) By before air outlet 7 arrange absorbent charcoal adsorber 10 purify further containing organic exhaust gas and Heavy metal.
The present invention a kind of flue dust self-circulation purifying method solves the long construction period that prior art exists, The difficult problems such as system footprint area is big, system maintenance cost is high, be not suitable for large-scale workpiece, and operation cost is high.
One flue dust self-circulation purifying method of the present invention, can realize that engineering shop is large-scale, ultra-large type Flue dust high-efficient purification in work piece cut or welding process, and small investment, operating cost are low, energy-conservation, behaviour Facilitate.Disclosure is particularly well suited to double workshop.

Claims (2)

1. a flue dust self-circulation purifying method, it is characterised in that: the method uses flue dust self-circulation purifying one Body machine, flue dust self-circulation purifying all-in-one inlet scoop one is placed on flue dust source produce side, operative employee opposite:
The first step, flue dust collecting: an air outlet high position is blown so that workshop air is formed flat on certain altitude The air-supply layer of steady bottom horizontal flow sheet, and utilize this air-supply layer to block flue dust to diffuse up, inlet scoop low level simultaneously Air draught, makes dust layer flow into inlet scoop under suction function;
Second step, clarifying smoke:
(1) single filter: the flue dust of collection enters single filter net, utilizes single filter net to make sending out of flue dust Raw collision, extinguishes spark, reduces temperature, filters oarse-grained flue dust simultaneously, and this flue dust enters ash bucket;
(2) medium air filtration: through step (1) flue dust enter medium effeciency filter carry out medium air filtration purification;
(3) high-efficient purification: through the air entrance clean room of step (2) filtration, purification, in clean room, phase Directly being down to the flue dust of larger particles in ash bucket under action of gravity with air upflow effect, tiny is micro- Grain by filter blocks at its outer surface, after clean gas is filtered purification, by filter center Flow into toilet;
(4) pulse backblowing: utilize compressed air bag that the graininess flue dust of filter outer skin is blown into ash bucket;
3rd step, organic exhaust gas and heavy metal filter: in toilet, and the air of step (3) is by air-supply Mouthful before arrange absorbent charcoal adsorber purify further containing organic exhaust gas and heavy metal.
A kind of flue dust self-circulation purifying method the most according to claim 1, it is characterised in that: described Air outlet high position air-supply flow velocity is more than inlet scoop low level air draught flow velocity.
CN201610191571.7A 2016-03-30 2016-03-30 Self-circulation purification method for smoke dust Pending CN105854477A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610191571.7A CN105854477A (en) 2016-03-30 2016-03-30 Self-circulation purification method for smoke dust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610191571.7A CN105854477A (en) 2016-03-30 2016-03-30 Self-circulation purification method for smoke dust

Publications (1)

Publication Number Publication Date
CN105854477A true CN105854477A (en) 2016-08-17

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Country Status (1)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101564631A (en) * 2009-05-18 2009-10-28 北京埃森恒业科技有限公司 Smoke purification equipment and system thereof
CN201558623U (en) * 2009-05-18 2010-08-25 北京埃森恒业科技有限公司 Combined type filtering device
WO2010131583A1 (en) * 2009-05-12 2010-11-18 Nozaki Atsuo Air cleaning device and air cleaning monitoring system using the same
CN201664690U (en) * 2010-03-12 2010-12-08 南通克莱克空气处理设备有限公司 Multifunctional weld fume purification system
CN203437000U (en) * 2013-08-30 2014-02-19 大连绿亿环保科技有限公司 Plasticizer oil fume purification system
CN203940575U (en) * 2014-06-30 2014-11-12 凯天环保科技股份有限公司 A kind of adjustable ventilation purification integrated machine
CN104606975A (en) * 2015-01-30 2015-05-13 河北宇清环保设备有限公司 Dedusting purifier
CN204582794U (en) * 2015-05-04 2015-08-26 林名楠 A kind of cement plant small-size dust remover

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010131583A1 (en) * 2009-05-12 2010-11-18 Nozaki Atsuo Air cleaning device and air cleaning monitoring system using the same
CN101564631A (en) * 2009-05-18 2009-10-28 北京埃森恒业科技有限公司 Smoke purification equipment and system thereof
CN201558623U (en) * 2009-05-18 2010-08-25 北京埃森恒业科技有限公司 Combined type filtering device
CN201664690U (en) * 2010-03-12 2010-12-08 南通克莱克空气处理设备有限公司 Multifunctional weld fume purification system
CN203437000U (en) * 2013-08-30 2014-02-19 大连绿亿环保科技有限公司 Plasticizer oil fume purification system
CN203940575U (en) * 2014-06-30 2014-11-12 凯天环保科技股份有限公司 A kind of adjustable ventilation purification integrated machine
CN104606975A (en) * 2015-01-30 2015-05-13 河北宇清环保设备有限公司 Dedusting purifier
CN204582794U (en) * 2015-05-04 2015-08-26 林名楠 A kind of cement plant small-size dust remover

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Application publication date: 20160817

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