CN110064261A - It is a kind of processing high humility, high temperature, high-dust flue gas high-precision deduster - Google Patents
It is a kind of processing high humility, high temperature, high-dust flue gas high-precision deduster Download PDFInfo
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- CN110064261A CN110064261A CN201910493981.0A CN201910493981A CN110064261A CN 110064261 A CN110064261 A CN 110064261A CN 201910493981 A CN201910493981 A CN 201910493981A CN 110064261 A CN110064261 A CN 110064261A
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- Prior art keywords
- dust
- hollow
- flue gas
- deduster
- precision
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
It is a kind of processing high humility, high temperature, high-dust flue gas high-precision deduster, with cylinder drive envelope bowl array move up and down, seal or open each gas outlet of filter arrays, take turns to operate filtering and deashing state；It uses Hydrophilic hollow fiber membrane as main filter material, obtains tolerance high humidity, high temperature, ability dusty；The superhigh precision treatment effect for being less than 1ug/m3 is obtained with the advantage of material itself；Using point-to-point sampling and measurement method, the detection to each filter core is realized.Realize the process of refinement to big industrial high pollution.
Description
Technical field
A kind of high-precision deduster handling high humility high-dust flue gas.
Background technique
" high humility " mentioned here refers to that the moisture in flue gas has reached saturation state, or even is in moisture condensation state；Institute
" high temperature " said refers to that the temperature in flue gas reaches 150-250 DEG C；Described " dusty " refers to that the dust content in flue gas reaches
100g/m3 or more；Described " high-precision " refers to that, by the present apparatus treated flue gas, dust content drops to 10ug/m3
Below.
The high-temperature flue gas that processing large quantity of moisture is mixed with a large amount of dust is the technology an of complexity and difficulty.Use centrifugal method
The biggish dust of particle can only be separated, it is difficult to obtain very high filtering accuracy；Currently a popular bag filter or folded membrane cylinder
Shape deduster, when facing dry flue gas, filtering accuracy only up to reach 1-3mg/m3, when in face of the high flue gas of moisture content,
Need to guarantee that the operating temperature of deduster is higher than the dew point of flue gas, when temperature is reduced to a certain degree, vapor can be condensed into
Liquid soaks dust, and deduster is caused to block, so if flue-gas temperature is too low, needs to install heater, cost dearly,
It is difficult to operate.Difficult in view of this, in industrial production, the processing for the high-dust flue gas containing high humility generallys use WATER-WASHING METHOD.
The shortcomings that WATER-WASHING METHOD is to consume a large amount of water, electric resources and more equipment, place, maintenance investment, and highest filtering
Also there are no the successful precedents for being better than 1-3mg/m3 for precision.The performance of common filter cylinder and cloth bag tolerance high temperature is bad.
Summary of the invention
The purpose of the present invention is to provide it is a kind of processing high humility, high temperature, high-dust flue gas high-precision deduster, in fact
Matter is: dust collector box body (14) is divided into upper and lower two warehouses by big card (29), lower warehouse by air intake branch (11) with
Inlet manifold (12) connection, upper warehouse are connect by going out gas branch pipe (27) with outlet general pipeline (28), going out gas branch pipe (27) and outlet
Air outlet valve (26) are housed between general pipeline (28)；
A series of membrane module array being made of hollow-fibre membrane membrane modules (24) is mounted on big card (29), in each
The top of empty fiber membrane membrane module (24) each faces an envelope bowl (25) respectively, seals the leading portion flexible material of bowl (25)
Be made, middle section is made of a steel, and back segment is an escape pipe, the escape pipe of each envelope bowl (25) back segment, all with tracheae frame (23)
Connection, constitutes the array for the envelope bowl (25) being fixed on tracheae frame (23), the quadrangle of tracheae frame (23) is respectively equipped with a row
The envelope bowl array that journey is 1-3cm drives cylinder (22), and tracheae frame (23) is hollow pipe, and one end of the hollow pipe passes through one section
Hose (21) and a pipe fitting are connected with the pulse air valve (20) of dust collector box body (14) outside, pulse air valve (20) it is another
End is connected to high pressure tank (19)；
The outlet end of each hollow-fibre membrane membrane module (24) is equipped with corresponding probe tube (16), probe tube (16)
It is connect by switch (17) with dust measurement (18), monitors the working effect of each hollow-fibre membrane membrane module (24)；
Under blower driving, the flue gas in vacuum suction air inlet supervisor (12) in exhaust supervisor (28) enters dust collector box body
(14), the dust in flue gas is filtered by the film wire (15) in hollow fiber film assembly (24) array, and clean gas enters hollow fibre
The outlet end of membrane module (24) is tieed up, at this moment tracheae frame (23) is under the action of sealing bowl array driving cylinder (22) in upper, envelope
Bowl (25) edge have at a distance from 1-3cm between the outlet end of hollow fiber film assembly (24), pure air can smoothly into
Enter upper warehouse, is sent out by going out gas branch pipe (27) and outlet general pipeline (28)；
Dust can form muffin in film wire (15) outer surface, be excessively that will result in film wire windage to rise when muffin accumulates, at this moment,
Envelope bowl array driving cylinder (22) starts to act, and moves downward, and pushes tracheae frame (23) and envelope bowl (25) to move downward, often
The edge of one envelope bowl (25) is all contacted and is sealed with the outlet end of corresponding hollow fiber film assembly (24), pulse air valve (20)
It opens, the high pressure blowback air-flow in high pressure tank (19) rushes in the inner cavity of film wire (15), will be attached to film wire (15) outer surface
Muffin blow off, restore original windage, later pulse air valve (20) close, envelope bowl array driving cylinder (22) move up,
Hollow fiber film assembly (24) array is again introduced into filtering operating condition；
Due to the large specific surface area of hollow fiber membrane cartridge, length only has 0.5-1.5m, far away from 2.5-8m's of dust-removal cloth-bag
Length, therefore dust collector box body (14) is also different with the structure of conventional cloth bag deduster, it is characterized in that: the deduster case
Body (14) is made of left box body (30), right case (34), (31) three, middle channel part, and middle channel (31) is inner to be equipped with inlet manifold
(12) and outlet general pipeline (28), the lower half portion of left box body (30) and right case (34) is made 30 --- 45 degree of slope, bottom
Equipped with dust mouth (32), dust accumulation is excreted in middle channel (31), is discharged through total dust mouth (33).
Since dust collector box body (14) total height is far below traditional bag filter, by several layers of dust collector box bodies (14) weight
Folded installation, can save floor occupying area.It is characterized by: 3-5 layers of dirt device cabinet (14) overlapping are installed in vertical direction,
Stereoscopic arrangement is constituted gas wash tower (40), in the horizontal direction 2-100 gas wash tower (40) continuous arrangements, constitutes gas wash tower battle array
Column.
It remains to reliably filter high-dust flue gas under the conditions of high humility even condenses to realize, it is characterised in that: adopted
The film wire (15) of hollow fiber film assembly is hydrophilic polyfluortetraethylemicroporous hollow-fibre membrane film wire.
In order to accurately detect the working condition and precision of deduster, the accurate location of failure is found, the present apparatus is using biography
The structure of sensor circling measurment.It is characterized by: the outlet end of each hollow-fibre membrane membrane module (24) has one to take
Sample pipe (16), all probe tubes (16) all through except dust collector box body (14), are connect with the inlet side of switch (17), are switched
The outlet of device (17) is connected to dust measurement (18), in switch (17) respectively and under selection, dust measurement (18) wheel
The sample that stream monitoring is got from each hollow-fibre membrane membrane module (24), judges each hollow-fibre membrane membrane module (24)
Working effect；
Material appropriate is selected, bears the high temperature of 150-250 degree, it is characterised in that: hollow-fibre membrane membrane module (24) institute
The film wire of use is polytetrafluoroethylhollow hollow fiber membrane；The resin or plastics poured for hollow-fibre membrane membrane module (24) is work
Make resin or silicon rubber that temperature is more than 150 degree or more, the material of the shell of hollow-fibre membrane membrane module (24) is operating temperature
Resin or silicon rubber or metal material more than 150 degree or more.
For the purpose being sealed to blowback air stream under the conditions of reaching a high temperature, it is characterised in that: the leading portion envelope of envelope bowl (25)
Oral area point is made of silicon rubber, and middle section is made of stainless steel, and back segment is an escape pipe.
Detailed description of the invention
Attached drawing 1 is the core structural representation of the high-precision deduster example of a processing high humility high-dust flue gas
Figure.(14) dust collector box body in figure；(29) big card；(24) hollow-fibre membrane membrane module；(25) bowl is sealed；(22) hose；(20)
Pulse air valve；(19) high pressure tank；(11) air intake branch；(12) air inlet is responsible for；(27) going out gas branch pipe；(28) exhaust supervisor；
(26) air outlet valve；(15) film wire；(16) probe tube；(17) switch；(18) dust measurement.
Attached drawing 2 is the structural schematic diagram of an example of the dust collector box body (14).In figure: (30) left box body；(34)
Right case；(31) channel in；(32) dust mouth；(33) total dust mouth.
Attached drawing 3 is the schematic diagram of an example of the gas wash tower (40).
Specific implementation
A Pilot Unit of the invention, air quantity 50m3/h, wind pressure 680pa, blowback pressure 0.3Mp, respectively in certain oxidation
Zinc production line and certain coke preheating workshop section have carried out online experiment operation in one month by a definite date, upstream 10-100g/m of dust concentration
3, humidity 100%, filtered precision is less than 1ug/m3.
A medium-sized experimental provision of the invention, air quantity 3800m3/h, wind pressure 680pa, blowback pressure 0.3Mp, in certain lead
The sintering workshop section on-line operation of smeltery, upstream 50-100g/m3 of dust concentration, 99 DEG C of temperature, humidity 63%, filtered essence
Degree is less than 1ug/m3.Wherein, the population of pm0.3u is 3640/m3, and the example number of pm2.5 is 0/m3.
Claims (6)
1. the high-precision deduster of a kind of processing high humility, high temperature, high-dust flue gas, essence are: dust collector box body (14)
Upper and lower two warehouses are divided by big card (29), lower warehouse is connect by air intake branch (11) with inlet manifold (12), upper storehouse
Room is connect by going out gas branch pipe (27) with outlet general pipeline (28), and air outlet valve is housed between going out gas branch pipe (27) and outlet general pipeline (28)
(26)；
A series of membrane module array being made of hollow-fibre membrane membrane modules (24) is mounted on big card (29), in each
The top of empty fiber membrane membrane module (24) each faces an envelope bowl (25) respectively, seals the leading portion flexible material of bowl (25)
Be made, middle section is made of a steel, and back segment is an escape pipe, the escape pipe of each envelope bowl (25) back segment, all with tracheae frame (23)
Connection, constitutes the array for the envelope bowl (25) being fixed on tracheae frame (23)；
The quadrangle of tracheae frame (23) is respectively equipped with the envelope bowl array that a stroke is 1-3cm and drives cylinder (22), and tracheae frame (23) is
One end of hollow pipe, the hollow pipe by one section of hose (21) and a pipe fitting and is located at the arteries and veins of dust collector box body (14) outside
Qi of chong channel ascending adversely valve (20) is connected, and the other end of pulse air valve (20) is connected to high pressure tank (19)；
The outlet end of each hollow-fibre membrane membrane module (24) is equipped with corresponding probe tube (16), probe tube (16)
It is connect by switch (17) with dust measurement (18), timesharing monitors the work of each hollow-fibre membrane membrane module (24) in turn
Make effect；
Under blower driving, the flue gas in vacuum suction air inlet supervisor (12) in exhaust supervisor (28) enters dust collector box body
(14), the dust in flue gas is filtered by the film wire (15) in hollow fiber film assembly (24) array, and clean gas enters hollow fibre
The outlet end of membrane module (24) is tieed up, at this moment tracheae frame (23) is under the action of sealing bowl array driving cylinder (22) in upper, envelope
Bowl (25) edge have at a distance from 1-3cm between the outlet end of hollow fiber film assembly (24), pure air can smoothly into
Enter upper warehouse, is sent out by going out gas branch pipe (27) and outlet general pipeline (28)；
Dust can form muffin in film wire (15) outer surface, when muffin accumulation is excessive, will result in the rising of film wire windage, at this moment,
Envelope bowl array driving cylinder (22) starts to act, and moves downward, and pushes tracheae frame (23) and envelope bowl (25) to move downward, often
The edge of one envelope bowl (25) is all contacted and is sealed with the outlet end of corresponding hollow fiber film assembly (24), pulse air valve (20)
It opens, the high pressure blowback air-flow in high pressure tank (19) rushes in the inner cavity of film wire (15), will be attached to film wire (15) outer surface
Muffin blow off, restore original windage, later pulse air valve (20) close, envelope bowl array driving cylinder (22) move up,
Hollow fiber film assembly (24) array is again introduced into filtering operating condition.
2. the high-precision deduster of a kind of processing high humility according to claim 1, high temperature, high-dust flue gas, feature
Be: the dust collector box body (14) is made of left box body (30), right case (34), (31) three, middle channel part, middle channel
(31) inner that inlet manifold (12) and outlet general pipeline (28) are housed, the lower half portion of left box body (30) and right case (34) is made tiltedly
Slope, bottom are equipped with dust mouth (32), dust accumulation are excreted in middle channel (31), are discharged through total dust mouth (33).
3. the high-precision deduster of a kind of processing high humility according to claim 1, high temperature, high-dust flue gas, feature
Be: by 3-5 layers of dirt device cabinet (14) the overlapping installation in vertical direction, stereoscopic arrangement is constituted gas wash tower (40), in level
2-100 gas wash tower (40) continuous arrangements on direction constitute gas wash tower array.
4. the high-precision deduster of a kind of processing high humility according to claim 1, high temperature, high-dust flue gas, feature
Be: the film wire (15) of used hollow fiber film assembly is hydrophilic polyfluortetraethylemicroporous hollow-fibre membrane film wire.
5. the high-precision deduster of a kind of processing high humility according to claim 1, high temperature, high-dust flue gas, feature
Be: the outlet end of each hollow-fibre membrane membrane module (24) has a probe tube (16), all probe tubes (16)
It all through except dust collector box body (14), is connect with the inlet side of switch (17), the outlet of switch (17) is connected to dust survey
It measures instrument (18), in switch (17) respectively and under selection, dust measurement (18) timesharing is monitored in turn from each hollow fibre
The sample that dimension film membrane module (24) is got, judges the working effect of each hollow-fibre membrane membrane module (24)；
A kind of processing high humility according to claim 1, high temperature, high-dust flue gas high-precision deduster, feature exists
In: film wire used by the hollow-fibre membrane membrane module (24) is polytetrafluoroethylhollow hollow fiber membrane；For hollow-fibre membrane
The resin or plastics that membrane module (24) pours are the resin or silicon rubber that operating temperature is more than 150 degree or more, hollow-fibre membrane
The material of the shell of component (24) is the resin or silicon rubber or metal material that operating temperature is more than 150 degree or more.
6. the high-precision deduster of a kind of processing high humility according to claim 1, high temperature, high-dust flue gas, feature
Be: the leading portion closure part of the envelope bowl (25) is made of high temperature silicone rubber, and middle section is made of stainless steel, and back segment is one and goes out
Tracheae.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493981.0A CN110064261A (en) | 2019-06-08 | 2019-06-08 | It is a kind of processing high humility, high temperature, high-dust flue gas high-precision deduster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910493981.0A CN110064261A (en) | 2019-06-08 | 2019-06-08 | It is a kind of processing high humility, high temperature, high-dust flue gas high-precision deduster |
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| CN110064261A true CN110064261A (en) | 2019-07-30 |
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ID=67372673
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|---|---|---|---|
| CN201910493981.0A Pending CN110064261A (en) | 2019-06-08 | 2019-06-08 | It is a kind of processing high humility, high temperature, high-dust flue gas high-precision deduster |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787549A (en) * | 2019-12-20 | 2020-02-14 | 广东风和洁净工程有限公司 | Improved structure of bag-type dust collector |
| CN111265951A (en) * | 2020-04-23 | 2020-06-12 | 广东风和洁净工程有限公司 | Semi-rotary reverse blowing hood type hollow fiber film dust remover |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110787549A (en) * | 2019-12-20 | 2020-02-14 | 广东风和洁净工程有限公司 | Improved structure of bag-type dust collector |
| CN111265951A (en) * | 2020-04-23 | 2020-06-12 | 广东风和洁净工程有限公司 | Semi-rotary reverse blowing hood type hollow fiber film dust remover |
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