CN105833627A - Water bath deduster, dedusting method and quicklime slaking and dedusting device - Google Patents
Water bath deduster, dedusting method and quicklime slaking and dedusting device Download PDFInfo
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- CN105833627A CN105833627A CN201610377691.6A CN201610377691A CN105833627A CN 105833627 A CN105833627 A CN 105833627A CN 201610377691 A CN201610377691 A CN 201610377691A CN 105833627 A CN105833627 A CN 105833627A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/021—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by bubbling the gas through a liquid bath
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/024—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by impinging the gas to be cleaned essentially in a perpendicular direction onto the liquid surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/028—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by directing the gas through a wetted wire mesh or a perforated plate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/02—Lime
- C04B2/04—Slaking
- C04B2/08—Devices therefor
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention provides a water bath deduster (Q1) which comprises a dedusting pool (Q2), a duduster shell (Q3) positioned below the dedusting pool (Q2) and a dedusting pipeline (Q4). One end of the dedusting pipeline (Q4) is externally connected with a dedusting port of a lime slaker while the other end of the same penetrates the deduster shell (Q3) from top to bottom and extends into the dedusting pool (Q2) below the deduster shell (Q3), a below-liquid pipeline nozzle (Q401) is arranged at the end, extending into the dedusting pool (Q2), of the dedusting pipeline (Q4), and the tail end of the below-liquid pipeline nozzle (Q401) is of a netty structure or a porous structure. The invention provides the efficient quicklime slaking water bath deduster and a quicklime slaking dedusting sewage treatment method and aims to solve the problem of poor quicklime slaking dedusting effect, the problem of environment pollution caused by a lot of dust and smoke generated during quicklime slaking, the problem of environment pollution caused by lime slaking dedusting sewage and the problem of how to recycle dedusting sewage.
Description
Technical field
The present invention relates to steel sintering factory quicklime slaking dust removal field, particularly relate to a kind of efficiently quicklime slaking wet dust collector
And quicklime slaking dusting waste water treatment method.
Background technology
Along with the development of modern industry, the raising of people's living standard, the requirement to environmental protection is more and more higher, keeps the safety in production, cleans
Produce the mark having become modern enterprise civilization.
In iron and steel metallurgical industry, it is generally required to be sintered before entering blast furnace ironmaking by iron ore, and quick lime is to sintered
Journey plays the most important effect, and first, improve the granulating efficiency of mixed material, improve bed permeability, compared with before digestion,
Compound > grade of 3mm adds more than 10%, and productivity of sintering machine can be made to improve 3%-5%；Second, containing Ca (OH)2
Sintering feed bead have a higher wet volume capacity, thus Heat stability is good in sintering process, the destruction of dry zone can be resisted,
Alleviate the impact of excessive moistening layer；3rd, improve material temperature；4th, reduce the consumption of solid fuel.Research shows, due to material temperature
Improving, the improvement of relatively fruit of pelletizing, Sintering Yield can improve about 10%, saves coke powder 1.5kg/t, and current quick lime is
Becoming one of sintering plant main flux, proportioning is at 3%-5%.
The digestion dedusting aspect of current quick lime exists a lot of not enough so that quicklime slaking district dust concentration is high, and environmental pollution is tight
Weight, dust removing effects is poor, and the deficiency being primarily present is:
One, existing digester is the biggest to the pollution of environment, current sintering plant commonly used single-stage digester, and digestion time is short,
Digestibility is low, and the dust of generation is many, and digestion zone dust concentration is the highest, and environmental pollution is serious.
Two, there is no special digestion deduster, a large amount of ash-laden gas during quicklime slaking, can be produced, special due to flue gas characteristic
Property, the dust removing effects of common deduster cannot meet country's emissions concentration standard, and owing to lime dust caking property is very strong, pole
Easily cause cleaning shaft blocking, fan vibration etc..Quicklime slaking smoke characteristic not only results in quick lime and sticks to cleaning shaft,
Blocking pipeline after hardening, but also the pole plate of heavy corrosion electric cleaner, affect it properly functioning.When using sack cleaner,
Also can be forced to disable because the hydraulicity causes cloth bag quickly to stick with paste stifled.The existence of problem above has a strong impact on the properly functioning of dust pelletizing system
And efficiency of dust collection.
Three, there is employing wet dedusting to carry out the dust except quicklime slaking at present, but the dedusting sewage after existing wet dedusting is random
Discharge, not only causes secondary pollution, and wastes resource environment.
Flue gas leading oblique cutting is directly entered in water by prior art, and flue gas has bigger impact to water, and forms bigger bubble, makes
Dust in bubble or particulate matter and water insufficient contact, cleaning, dedusting effect bad.
Summary of the invention
In order to solve quicklime slaking dust removal problem in sintering, improve energy-saving and emission-reduction work in sintering process further, need design
Quicklime slaking deduster, to solve the problem of quicklime slaking dust removing effects difference, solves again existing quicklime slaking environmental pollution and asks
Topic.
It is an object of the invention to provide a kind of efficiently quicklime slaking wet dust collector and quicklime slaking dusting waste water treatment side
Method, to solve the problem of quicklime slaking dust removing effects difference, and solves a large amount of dust flue gas environmental pollution of existing quicklime slaking
Problem, the problem of lime slaking dedusting sewage environmental pollution, and the problem how dedusting sewage recycles.
The smoke characteristic that quicklime slaking produces is as follows: 1, strong cohesive property and hydrophily, according to test, the fracture strength of CaO is more than
600Pa, is strong cohesive property and strongly hydrophilic dust, as easy as rolling off a log caking or stick on the inwall of deduster and pipeline thereof；2, high
Dispersiveness, quick lime is violent exothermic reaction with the chemical reaction of water, the Ca (OH) of generation2The granularity of colloidal solid is superfine, flat
All particle diameters are 30 μm, and therefore, in digestion process, quick lime dust easily fills the air with thermal current and comes, and natural subsidence is very
Slowly, range of scatter is wide, and dust catching difficulty is big；3, the hydraulicity, quick lime adds water to digest and generates Ca (OH)2, it is dispersed in air
Middle meeting absorbs water and CO further2Reaction, generates CaCO3Precipitation.Work as CaCO3Amount run up to a certain degree after, will be formed hard
Dirt and harden, this is the hydraulicity of quick lime.
So the smoke characteristic produced for quicklime slaking, the present invention provides a kind of efficiently quicklime slaking wet dust collector, should
Deduster is wet dedusting.
The first embodiment according to the present invention, it is provided that a kind of water bath dust collector (abbreviation wet dust collector):
A kind of wet dust collector, this deduster includes:
Dedusting pond；
It is positioned at the shell of dust remover above dedusting pond；
Cleaning shaft,
One end of cleaning shaft is external to one or more output containing dusty gas collection device (removing of such as limeslaker
Dirt interface), the other end passes shell of dust remover from top to bottom and stretches in the dedusting pond below shell of dust remover.Cleaning shaft is stretched
Enter the one end in dedusting pond and be provided with liquid down tube channel showerhead.Wherein the end of liquid down tube channel showerhead is network structure or loose structure.
As preferably, cleaning shaft passes (i.e. along axis) from the middle part of shell of dust remover.That is, cleaning shaft is at deduster
It is centrally located in housing or is substantially centered setting.
As preferably, this deduster also includes: be positioned at the overflow water water shutoff pond of side, dedusting pond.At dedusting pond and overflow water
Between water shutoff pond, the water level adjustment hole opened in the lower end of shell of dust remover side.
Preferably, outside the shell of dust remover on water level adjustment hole side, it is provided with card and puts groove and water level control apparatus.This water level is adjusted
Regulating device includes water level adjustable plate, screw rod, regulation valve.Water level regulation board is placed on described card and puts in groove.One end of screw rod
Being connected with water level adjustable plate, the other end of screw rod is connected with regulation valve.The vertical width of water level adjustable plate regulates slightly larger than water level
The vertical width in hole.Typically, the vertical width of water level adjustable plate be enough to shelter from the vertical width of described water level adjustment hole, this tune
Joint plate can by be positioned at water level control apparatus outside (being also outside shell of dust remover) governor valve control its up and down regulate
Block water level adjustment hole block or sealing area and height.
As preferably, this deduster also includes: be arranged on the cover plate above overflow water water shutoff pond.One end of cover plate and deduster shell
Body connects, and the other end inserts in overflow water water shutoff pond.
Preferably, cover plate having a through hole, screw rod passes this through hole.
As preferably, top, overflow water water shutoff pond is provided with overflow pipe.It is used for regulating the water level in overflow water water shutoff pond.
Preferably, overflow pipe is provided with overflow pipe valve.
As preferably, dedusting pond is provided with filling pipe.It is used for as dedusting pond supplements water.
Preferably, moisturizing water pipe is provided with moisturizing pipe valve.
As preferably, dedusting basin bottom is funnel-form or " V " type or is rendered as inversed-cone shape (or back taper tubular).Water in dust removal
Sewage sludge tapping equipment it is provided with bottom pond.
Preferably, in sewage sludge tapping equipment, it is additionally provided with hydraulic gage.
As preferably, wherein the dedusting pond in shell of dust remover is provided above support.It is provided with as gas below support
Bubble punctures first group of woven wire (preferably V-type screen pack or V-type woven wire) a little.It is provided above second at support
Group woven wire is preferably reverse V-shaped woven wire.
As preferably, wherein first group of woven wire and/or second group of woven wire alternating inclinations arrange.Point of intersection is provided with sealing
Card.
As preferably, wherein it is provided above sprinkler head at second group of woven wire.It is used for spraying on second group of woven wire removing
Dirt water or dedusting liquid.
As preferably, wherein it is provided above dash except mist plate at sprinkler head.At dash except arranging on shell of dust remover above mist plate
Net air is had to export.
As preferably, this deduster also includes that control system, hydraulic gage, overflow pipe valve and moisturizing pipe valve are connected with control system.
Control system controls hydraulic gage, overflow pipe valve and moisturizing pipe valve.
Wet dust collector described herein can be mounted or positioned on pedestal, or is supported on support bracket.Typically, water
It is circular or oval that the housing sidepiece of bath deduster presents the housing side cross sectional of cylindrical shape or oval cylinder, i.e. wet dust collector
Shape.Also the housing side cross sectional that can be rendered as four prism type, i.e. wet dust collector is rectangle or square.Wet dust collector
Body height (height of the most whole housing) be usually 1.2m-10m, preferably 1.5-7m, more preferably 2.0-5m.
The second embodiment provided according to the present invention, it is provided that the using method of a kind of wet dust collector or use above-mentioned water-bath to remove
Dirt device carries out the method for dedusting, and the method comprises the following steps:
(1) by filling pipe retaining in dedusting pond, regulate water level adjustable plate, make dedusting pond middle water level arrive predetermined value,
Close moisturizing pipe valve；
(2) dusty gas (such as from the dedusting interface of burnt lime digester come dust flue gas) by cleaning shaft from top to bottom from
Enter in the middle part of shell of dust remover in deduster, by smoke property and the uninterrupted of flue gas, regulate water level control apparatus, make dedusting
Pipeline inserts certain position (such as 0.2-0.8m) in dedusting pond, and insert under water one of cleaning shaft is provided with network structure or many
The liquid down tube channel showerhead of pore structure；
(3) dusty gas flows through cleaning shaft (at a relatively high speed) ejection at liquid down tube channel showerhead (to have certain speed), right
Water layer enters in water after producing percussion, and the direction of motion of gas changes, and grit then continues by originally due to the effect of inertia
Moving in direction, stays in water after wherein most grit and water adhesion, and smoke-shock water body is through the network structure of liquid down tube channel showerhead
Cut into minute bubbles, add the contact area of flue gas and water, strengthen the water in dust removal seizure to dust, it is achieved the first order is impacted
Formula water bath dust-removing；
(4) in water bath dust-removing, flue gas, major part dust is removed, and remainder particle dust is through first group of wire
Net forms first moisture film and the second moisture film of second group of woven wire formation, and the fine dust in flue gas is carried out by twice moisture film
Catching, it is achieved second level filtering type water film dedusting, purified gas is discharged from exit after dash processes except mist plate.
(5) dedusting pond is through long dedusting, has turned into sewage, by this sewage from funnel-form or " V " type dedusting pond
The sewage sludge tapping equipment of bottom is discharged, and carries out moisturizing from filling pipe.
In the present invention, liquid down tube channel showerhead extends into certain position in housing bottom dedusting pond, insertion depth and dust characteristic
Relevant, generally 20-80cm.Soot density is big, particle is thick, then insertion depth is such as 20～50cm；Soot density is little,
Particle is thin, then insertion depth is 30～80cm, and this pipeline shower nozzle purpose is flue gas to be divided into multiple gas column enter in water, increases
Flue gas contacts with water, improves efficiency of dust collection.
In the present invention, dedusting pond middle water level can be made to raise when being passed through dusty gas or flue gas, too high water can be from water level
Adjustment hole flows to be arranged on the overflow pond outside adjustable plate, and the water level in dedusting pond so can be made to keep suitably height, no
Only can make the smooth suction of flue gas, but also ensure that and shower nozzle is not had water depth.
In the present invention, in housing, dedusting pond is provided above support, is provided with first group of woven wire below support,
This woven wire is one group of V-type screen pack, for flue gas bubble out from dedusting pond is punctured, and the air-flow that scatter.?
Support is provided above reverse V-shaped second group of woven wire.Second group of woven wire alternating inclinations arrangement, point of intersection is provided with sealing
Card, side is provided with sprinkler head on a wire mesh, is used for spraying dedusting liquid on woven wire, is formed to dirty on wire netting
Dynamic moisture film, then flow to the bubble below support and puncture net and form second moisture film, fully catch dust.
In the present invention, this deduster arranges water level control apparatus, realizes water level by the height of regulation water level adjustable plate and regulates
Function, when deduster air exhauster starts, in deduster, negative pressure is uprushed, and water level raises suddenly, but water can be discharged to from water level adjustment hole
Overflow water water shutoff pond, it is ensured that liquid down tube channel showerhead does not has water depth the most within limits, thus protect blower fan to avoid resistance to dash forward
Increase and motor damage.When deduster is properly functioning, can be moved up and down, to water by water level control apparatus governor valve control adjustable plate
Position is adjusted, and shower nozzle capable of on-line does not has water depth, it is ensured that the stable and Effec-tive Function of equipment.
According to the third embodiment the present invention, it is provided that quicklime slaking and dust arrester, it includes above-mentioned wet dust collector
And burnt lime digester, wherein wet dust collector is connected with the external tapping that gathers dust of burnt lime digester by a cleaning shaft.
Preferably, burnt lime digester is two-stage burnt lime digester or three grades of burnt lime digesters.Wet dust collector passes through one
Individual cleaning shaft is connected with the external tapping that gathers dust of digester.
Above-described two-stage burnt lime digester includes: charging aperture, the sealing transportation section casing that front end is connected with charging aperture,
The the first digestion section casing being connected with the rear end sealing transportation section casing, is positioned at top or the spray of sidepiece of the first digestion section casing
Water device；It is positioned at the sealing dust excluding hood at the first digestion section casing top, is positioned at the first digestion section casing and away from that of charging aperture
At the upper digestion casing blanking of one end and disclose material mouth, it is positioned at the second digestion section casing below the first digestion section casing, is positioned at second
The discharging opening of that one end in digestion section casing and near charging aperture；Wherein: at the first digestion section casing built with a pair have
First shaft of stirring vane, this both first shaft of a pair is driven and both rotation by the first driving means
In opposite direction；It addition, at the second digestion section casing built with second shaft with stirring vane of a pair, this pair the
Both two shafts are driven by the second driving means and both direction of rotation are contrary；With, seal dust excluding hood and have and gather dust
External tapping.
Above-described three grades of burnt lime digesters include: charging aperture, the sealing transportation section casing that front end is connected with charging aperture,
The the first digestion section casing being connected with the rear end sealing transportation section casing, is positioned at top or the spray of sidepiece of the first digestion section casing
Water device；It is positioned at the sealing dust excluding hood at the first digestion section casing top, is positioned at the first digestion section casing and away from that of charging aperture
At the upper digestion casing blanking of one end and disclose material mouth, it is positioned at the second digestion section casing below the first digestion section casing, is positioned at second
Digest at casing blanking in digestion section casing and near the second of that one end of charging aperture and disclose material mouth (i.e. discharging opening), being positioned at second
The 3rd digestion section casing below digestion section casing, is positioned at the 3rd digestion section casing and the discharging opening of that one end away from charging aperture；
Wherein: digest first shaft with stirring vane that section casing is built with a pair, this first shaft two of a pair first
Person is driven by the first driving means and both direction of rotation are contrary；At the second digestion section casing built with a pair have
Second shaft of stirring vane, this both second shaft of a pair is driven and both rotation by the second driving means
In opposite direction；The 3rd shaft with stirring vane that section casing is built with a pair is digested, this 3rd stirring of a pair the 3rd
Both axles are driven by the 3rd driving means and both direction of rotation are contrary；With, seal dust excluding hood and there is the external tapping that gathers dust.
In above two digester, it is preferable that be positioned in the middle of the first shaft one of in the middle of the second shaft just under
Side, and the direction of rotation of both is contrary.
For three grades of digesters, it is preferred that be positioned in the middle of the first shaft one 's of in the middle of the second shaft
Underface, and the direction of rotation of both is contrary, and be positioned in the middle of the second shaft in the middle of the 3rd shaft
Individual underface, and the direction of rotation of both is contrary.
Preferably, the input of water injector is external with initial water supply line, output by automation flowmeter water valve be positioned at the
The multiple telescopic sprinkler head on the top of one digestion section housing interior volume connects；Preferably, automation flowmeter water valve with
Master Control Room is electrically connected to the water yield be carried out Automated condtrol and has cutting function；It may further be preferable that multiple scalable sprays
Spill head and carry out flexible adjustment, length arrangement straggly according to the length of digestion section casing.
It addition, the hot water outlet of the externally connected heat exchanger of the initial water supply line of water injector.This heat exchanger has cold water and enters
Mouthful and the cooling gas vent added after hot gas inlet and heat exchange of hot water outlet and heat.As shown in fig. 3a.
Preferably, set above the first digestion section casing height sealing dust excluding hood along this casing material conveying direction gradually
Increasing, the external tapping that gathers dust is positioned at the end of dust excluding hood, by this gather dust external tapping and extraneous deduster or the pipeline of dust pelletizing system
It is connected.
Preferably, the casing of two-stage burnt lime digester or three grades of burnt lime digesters is additionally provided with digestion casing apparatus for examination and repair, should
Apparatus for examination and repair includes that one or more digestion casing apparatus for examination and repair door and one or more digestion casing apparatus for examination and repair door activity connect machine
Structure；Preferably, one or more digestion casing apparatus for examination and repair door moving connecting mechanisms are installed in the bottom of the second casing or same
Time be installed in the second casing and the 3rd respective bottom of casing, the bottom of digestion casing apparatus for examination and repair door and digestion casing maintenance dress
Putting a moving connecting mechanism to connect, door can rotate around this moving connecting mechanism, the top of digestion casing apparatus for examination and repair door and lower box
Top snaps connection, i.e. this top can open and close.
In this application, two-stage digester is also referred to as upper and lower two-stage digester, and three grades of digesters are also referred to as upper and lower three grades of digestion
Device.
Two-stage or the length of three grades of digesters in the application are usually 3-30m, preferably 4-20m, more preferably 5-10m.Two-stage or
Three grades of digesters can be installed on support bracket or be arranged on pedestal.Two-stage or three grades of digesters in the application can prop up
Support is on support or is arranged on pedestal.Preferably, belt conveyor is set below the discharging opening of two-stage or three grades of digesters.
According to another aspect of the present invention, it is provided that a kind of use includes above-mentioned digestion and the dedusting dress of two-stage burnt lime digester
The quicklime slaking put and dust collection method, the method comprises the following steps:
1) quicklime slaking: put into by quick lime in the charging aperture of two-stage burnt lime digester, via sealing transportation section casing quilt
Being delivered in the first digestion section casing, the water injector on top or sidepiece by being positioned at the first digestion section casing digests section to first
The quick lime material water spray of motion in casing so that quick lime move under the stirring action of shaft while occur to mix with
Digestion, entering afterwards moves in the second digestion section casing again under the stirring action of shaft there is mixing further
And digestion, postdigestive quick lime is discharged via the discharging opening bottom burnt lime digester；With
2) dedusting of dusty gas: the dusty gas in sealing dust excluding hood is output to water from the external tapping that gathers dust sealing dust excluding hood
The cleaning shaft of bath deduster, dusty gas is injected in the water in dedusting pond by the liquid down tube channel showerhead of cleaning shaft, passes through
Contacting with water and carry out dedusting, the net air outlet that the gas after dedusting is arranged from shell of dust remover is discharged.
According to a further aspect of the invention, it is provided that a kind of use includes above-mentioned digestion and the dedusting dress of three grades of burnt lime digesters
The quicklime slaking put and dust collection method, the method comprises the following steps:
1) quicklime slaking: put into by quick lime in the charging aperture of three grades of burnt lime digesters, via sealing transportation section casing quilt
Being delivered in the first digestion section casing, the water injector on top or sidepiece by being positioned at the first digestion section casing digests section to first
The quick lime material water spray of motion in casing so that quick lime move under the stirring action of shaft while occur to mix with
Digestion, entering afterwards moves in the second digestion section casing again under the stirring action of shaft there is mixing further
And digestion, entering afterwards moves in the 3rd digestion section casing again under the stirring action of shaft occurs to mix further
Closing and digestion, postdigestive quick lime is discharged via the discharging opening bottom burnt lime digester；With
2) dedusting of dusty gas: the dusty gas in sealing dust excluding hood is output to water from the external tapping that gathers dust sealing dust excluding hood
The cleaning shaft of bath deduster, dusty gas is injected in the water in dedusting pond by the liquid down tube channel showerhead of cleaning shaft, passes through
Contacting with water and carry out dedusting, the net air outlet that the gas after dedusting is arranged from shell of dust remover is discharged.
Compared with prior art, the present invention has a following Advantageous Effects:
1, impulse type water bath dedusting technology and filtering type moisture film dedusting technology advantage have been gathered, targetedly capture bulky grain and micro-
Fine dust, efficiency of dust collection is up to 99.9%.
2, water level in deduster can be regulated when equipment runs, reach higher purification efficiency, ensure that purifier runs resistance simultaneously
Power is relatively low, and equipment energy consumption is low.
3, utilize overflow pond, control the fluctuation range of liquid level in purifier cylinder well, it is ensured that purifier has surely
Fixed purification efficiency, and blower fan is served protective effect.
4, dedusting sewage can recycle after sewage disposal again, reduces sewage discharge capacity, prevents secondary pollution.
5, the setting of V-type dedusting pond and the sewage sludge tapping equipment at the bottom of pond makes the discharge of dedusting sewage mud and recycles,
Automatic controlled water replanishing, automaticity is high.
6, cleaning shaft of the present invention inserts dedusting pond from middle part from top to bottom, can make dedusting pond be arranged on lower position or
Underground, saved land used, it is to avoid pollutes.
7, the present invention efficiently solves the problem of quicklime slaking dust removing effects difference, and solves a large amount of powder of existing quicklime slaking
The problem of cloud of dust gas environmental pollution.
It addition, the present invention also has a following Advantageous Effects:
8, compared with single-stage digester, digestibility increases by 1 to 2 times, and digestible degree is high, the digestion process parameter of science, maximum
Changing makes quicklime slaking complete.In digestion process, heat loss is less, i.e. the amplitude of temperature drop is relatively low.In waste gas, dust is obvious
Reduce, reduce the burden of follow-up dedusting.The power of stirring is shared by multiple shafts, reduces the abrasion of driving equipment.
9, seal the part in the casing of transportation section and be provided with continuous print conveyor screw blade, seal inwall and the continuous print of transportation section casing
Form helixseal conveying between conveyor screw blade, only allow quick lime to push ahead entrance digestion section casing, can effectively prevent
Steam anti-channeling to feeding mouth causes and hardens or affect belt conveyer scale weighing precision.
10, use Double shaft stirring form, there is stirring, pulverize multiple action and the effects such as caking and self-cleaning；Improve quick lime
Stirring frequency, makes quick lime mix with water, reacts abundant；Stirrer paddle uses manganese steel plate welding carbide bit, prolongs
Long life.
11, owing to have employed multistage digestion, the also Automated condtrol of the water yield so that digestion effect is fine, and the dust of generation is also
Corresponding a large amount of minimizing, substantially improves the external environment condition in digestion place, and digestion region dust concentration is far below country's emissions concentration
Standard, has administered the problem of environmental pollution of existing digestion zone.
12, for the maintenance blind spot below multistage digester one-level digestion section, it is provided that a kind of effective expansion repair method,
Solve a multistage digester maintenance difficult problem.
Accompanying drawing explanation
Fig. 1 is wet dust collector structure drawing of device of the present invention；
Fig. 2 is the structure chart that wet dust collector of the present invention is provided with control system.
Fig. 3 is the structural representation of the present invention (up and down) two-stage digester.
Fig. 3 a is this of the hot water outlet of initial externally connected for the water supply line L0 heat exchanger X4 of wherein water injector 5
The structural representation of bright (up and down) two-stage digester.
Fig. 4 be the present invention Fig. 2 shown in the plan structure schematic diagram of digester.
Fig. 5 be the present invention Fig. 2 shown in the left view schematic diagram of digester.
Fig. 6 is the structural representation of the present invention (up and down) three grades of digesters.
Reference:
Q1: deduster；Q2: dedusting pond；Q201: filling pipe；Q202: moisturizing pipe valve；Q203: sewage sludge discharge dress
Put；Q204: hydraulic gage；Q3: shell of dust remover；Q301: water level adjustment hole；Q302: card puts groove；Q303: net air goes out
Mouthful；Q4: cleaning shaft；Q 401: liquid down tube channel showerhead；Q5: overflow water water shutoff pond；Q501: cover plate；Q502: overflow pipe；
Q503: overflow pipe valve；Q6: water level control apparatus；Q601: water level adjustable plate；Q602: screw rod；Q603: regulation valve；
Q7: support；Q701: the first group of woven wire；Q702: the second group of woven wire；Q703: sealed card；Q8: sprinkler head；
Q9: dash removes mist plate；Q10: control system.
In Fig. 3-6,1: burnt lime digester；2-charging aperture；201-self seal valve；3-seals transportation section casing；301-
Conveyor screw blade；4-first section of digestion casing；Bed in 4a-the first bed or the first digestion section casing；401a and 401b-
First shaft；402-stirring vane；5-water injector；501-automates flowmeter water valve；The scalable sprinkler head of 502-；6-
Seal dust excluding hood；601-gathers dust external tapping；7-first (on) at digestion casing blanking and disclose material mouth；7a-second (in) digestion case
At body blanking and disclose material mouth；8-second section of digestion casing；Bed in 8a-the second bed or the second digestion section casing；801a and
801b-the second shaft；9-discharging opening；10-digests casing apparatus for examination and repair；10a-digests casing apparatus for examination and repair door；10b disappears
Change casing apparatus for examination and repair door articulating device；11-the first driving means；11a-the first shaft coupling；11b-the first gear-box；
11c-clutch shaft bearing seat；12-the second driving means；12a-the second shaft coupling；12b-the second gear-box；12c-the second axle
Bearing；13-the 3rd driving means；13a-the 3rd shaft coupling；13b-the 3rd gear-box；13c-the 3rd bearing block；14-the 3rd
Digestion section casing；Bed in 14a-the 3rd bed or the 3rd digestion section casing；1401a and 1401b-the 3rd shaft (to)；
The initial water supply line of L0-；X4-heat-exchange device；X5-cold water；X6-adds hot gas (such as central cooler hot blast).
Detailed description of the invention
The first embodiment according to the present invention, it is provided that a kind of wet dust collector:
A kind of wet dust collector, this deduster Q1 includes:
Dedusting pond Q2；
It is positioned at the shell of dust remover Q3 above the Q2 of dedusting pond；
Cleaning shaft Q4,
One end external one or more outputs containing dusty gas collection device (removing of such as limeslaker of cleaning shaft Q4
Dirt interface), the other end passes shell of dust remover Q3 from top to bottom and stretches in the dedusting pond Q2 below shell of dust remover Q3.
Cleaning shaft Q4 stretches into the one end in the Q2 of dedusting pond and is provided with liquid down tube channel showerhead Q401.Wherein liquid down tube channel showerhead Q401
End be network structure or loose structure.
As preferably, cleaning shaft Q4 passes from the middle part of shell of dust remover Q3.
As preferably, this deduster Q1 also includes: be positioned at the overflow water water shutoff pond Q5 of Q2 side, dedusting pond.In dedusting pond
Between Q2 and overflow water water shutoff pond Q5, the water level adjustment hole Q301 opened in the lower end of shell of dust remover Q3 side.
Preferably, outside the shell of dust remover Q3 on water level adjustment hole Q301 side, it is provided with card puts groove Q302 and water level regulation dress
Put Q6.This water level control apparatus Q6 includes water level adjustable plate Q601, screw rod Q602, regulation valve Q603.Water level adjustable plate
Q601 card is placed on described card and puts in groove Q302.One end of screw rod Q602 is connected with water level adjustable plate Q601, screw rod Q602
The other end with regulation valve Q603 be connected.The vertical width of the water level adjustable plate Q601 vertical width slightly larger than water level adjustment hole Q301
Degree.
As preferably, this deduster Q1 also includes: be arranged on the cover plate Q501 above overflow water water shutoff pond Q5.Cover plate Q501
One end be connected with shell of dust remover Q3, the other end inserts in overflow water water shutoff pond Q2.
Preferably, cover plate Q501 having a through hole, screw rod Q602 passes this through hole.
As preferably, Q5 top, overflow water water shutoff pond is provided with overflow pipe Q502.It is used for regulating the water level in overflow water water shutoff pond.
Preferably, overflow pipe Q502 is provided with overflow pipe valve Q503.
As preferably, dedusting pond Q2 is provided with filling pipe Q201.It is used for as dedusting pond supplements water.
Preferably, moisturizing water pipe Q201 is provided with moisturizing pipe valve Q202.
As preferably, it is funnel-form or " V " type bottom the Q2 of dedusting pond.Sewage sludge discharge dress it is provided with bottom the Q2 of dedusting pond
Put Q203.
Preferably, in sewage sludge tapping equipment Q203, it is additionally provided with hydraulic gage Q204.
As preferably, wherein the dedusting pond Q2 in shell of dust remover Q3 is provided above support Q7.Below support Q7
It is provided with and punctures first group of woven wire Q701 (preferably V-type screen pack or V-type woven wire) a little as bubble.Propping up
Frame Q7 is provided above second group of woven wire Q702 and is preferably reverse V-shaped woven wire.
As preferably, wherein first group of woven wire Q701 and/or second group of woven wire Q702 alternating inclinations arrange.Point of intersection
It is provided with sealed card Q703.
As preferably, wherein it is provided above sprinkler head Q8 at second group of woven wire Q702.It is used for second group of woven wire
Q702 upper sprinkling water in dust removal or dedusting liquid.
As preferably, wherein it is provided above dash except mist plate Q9 at sprinkler head Q8.At dash except deduster shell above mist plate Q9
Net air outlet Q303 it is provided with on body.
As preferably, this deduster also includes control system Q10, hydraulic gage Q204, overflow pipe valve Q503 and moisturizing pipe valve Q202
It is connected with control system Q10.Control system Q10 controls hydraulic gage Q204, overflow pipe valve Q503 and moisturizing pipe valve Q202.
The second embodiment provided according to the present invention, it is provided that the using method of a kind of wet dust collector or use above-mentioned water-bath to remove
The dust collection method of dirt device, the method comprises the following steps:
(1) by filling pipe Q201 retaining in dedusting pond, regulate water level adjustable plate Q601, make water in the Q2 of dedusting pond
Position arrives predetermined value, closes moisturizing pipe valve Q202；
(2) dusty gas (dust flue gas as fetched from burnt lime digester dust removal port) by cleaning shaft Q4 from top to bottom from
Enter in the middle part of shell of dust remover Q3 in deduster Q1, by smoke property and the uninterrupted of flue gas, regulate water level control apparatus Q6,
Making cleaning shaft Q4 insert certain position in the Q2 of dedusting pond, insert under water one of cleaning shaft Q4 is provided with cancellated
Liquid down tube channel showerhead Q401；
(3) there is the dusty gas of certain speed flow through cleaning shaft Q4 and spray at a relatively high speed at liquid down tube channel showerhead Q401,
Entering after water layer produces percussion in water, the direction of motion of gas changes, and grit then continues by former due to the effect of inertia
Carrying out direction motion, stay in water after wherein most grit and water adhesion, smoke-shock water body is through the net of liquid down tube channel showerhead Q401
Shape structure cuts into minute bubbles, adds the contact area of flue gas and water, strengthens the water in dust removal seizure to dust, it is achieved first
Level impulse type water bath dedusting；
(4) in water bath dust-removing, flue gas, major part dust is removed, and remainder particle dust is through first group of wire
The second moisture film that net Q701 forms first moisture film and second group of woven wire Q702 is formed, micro-in flue gas of twice moisture film
Fine dust catches, it is achieved second level filtering type water film dedusting, and purified gas removes after mist plate Q9 processes from outlet through dash
Place discharges.
(5) dedusting pond Q2 is through long dedusting, has turned into sewage, by this sewage from funnel-form or " V " type dedusting
Sewage sludge tapping equipment Q203 bottom the Q2 of pond discharges, and carries out moisturizing from filling pipe Q201.
According to the third embodiment the present invention, it is provided that quicklime slaking and dust arrester, it includes above-mentioned wet dust collector
Q1 and burnt lime digester, wherein wet dust collector Q1 is external with gathering dust of burnt lime digester by a cleaning shaft Q4
Mouth is connected.
Preferably, burnt lime digester is two-stage burnt lime digester 1 or three grades of burnt lime digesters 1.Wet dust collector Q1
It is connected with the external tapping 601 that gathers dust of digester 1 by a cleaning shaft Q4.
That is, one quicklime slaking and dust arrester, it includes above-mentioned wet dust collector Q1 and burnt lime digester 1 He, water
Bath deduster Q1 is connected with the external tapping 601 that gathers dust of digester 1 by a cleaning shaft Q4；Wherein burnt lime digester
1 can use two-stage burnt lime digester 1 or three grades of burnt lime digesters 1.
Above-described two-stage burnt lime digester 1 includes: charging aperture 2, the sealing transportation section that front end is connected with charging aperture 2
Casing 3, the first digestion section casing 4 being connected with the rear end sealing transportation section casing 3, it is positioned at the upper of the first digestion section casing 4
The water injector 5 of portion or sidepiece；It is positioned at the sealing dust excluding hood 6 at the first digestion section casing 4 top, is positioned at the first digestion section casing 4
In and away from the upper digestion casing blanking of that one end of charging aperture 2 and disclose material mouth 7, be positioned at below the first digestion section casing 4
Second digestion section casing 8, is positioned at the second digestion section casing 8 and the discharging opening 9 of that one end near charging aperture 2；Wherein:
First digestion section casing 4 built with first shaft 401a and 401b with stirring vane 402 of a pair, this pair the
One shaft 401a and 401b is driven by the first driving means 11 and both direction of rotation are contrary；It addition,
Second digestion section casing 8 built with second shaft 801a and 801b with stirring vane of a pair, this pair second stirs
Mix axle 801a and 801b to be driven and both direction of rotation are contrary by the second driving means 12；With, seal dedusting
Cover 6 has the external tapping 601 that gathers dust.
Above-described three grades of burnt lime digesters 1 include: charging aperture 2, the sealing transportation section that front end is connected with charging aperture 2
Casing 3, the first digestion section casing 4 being connected with the rear end sealing transportation section casing 3, it is positioned at the upper of the first digestion section casing 4
The water injector 5 of portion or sidepiece；It is positioned at the sealing dust excluding hood 6 at the first digestion section casing 4 top, is positioned at the first digestion section casing 4
In and away from the upper digestion casing blanking of that one end of charging aperture 2 and disclose material mouth 7, be positioned at below the first digestion section casing 4
Second digestion section casing 8, is positioned at the second digestion section casing 8 and the second digestion casing blanking near that one end of charging aperture 2
Place and disclose material mouth (i.e. discharging opening) 7a, be positioned at below the second digestion section casing 8 the 3rd digestion section casing 14, be positioned at the 3rd digestion
The discharging opening 9 of that one end in section casing 14 and away from charging aperture 2；Wherein: at the first digestion section casing 4 built with a pair
Having the first shaft 401a and 401b of stirring vane 402, this first shaft 401a and 401b of a pair is by the
One driving means 11 is driven and both direction of rotation are contrary；Second digestion section casing 8 built with a pair there is stirring
Second shaft 801a and 801b of blade, this second shaft 801a and 801b of a pair pass through the second driving means
12 are driven and both direction of rotation are contrary；The 3rd digestion section casing 14 built with a pair there is the of stirring vane
Three shaft 1401a and 1401b, this 3rd shaft 1401a and 1401b of a pair pass through the 3rd driving means 13 institute
Drive and both direction of rotation are contrary；With, seal dust excluding hood 6 and there is the external tapping 601 that gathers dust.
In above two digester, it is preferable that a 801a in the middle of the second shaft 801a and 801b is positioned at the first shaft
The underface of a 401a in the middle of 401a and 401b, and the direction of rotation of they 401a and 801a is contrary.
For three grades of digesters, it is preferred that a 801a in the middle of the second shaft 801a and 801b is positioned at first and stirs
Mix the underface of a 401a in the middle of axle 401a and 401b, and the direction of rotation of they 401a and 801a be contrary,
It is positioned at a 801a in the middle of the second shaft 801a and 801b with a 1401a in the middle of the 3rd shaft 1401a and 1401b
Underface, and the direction of rotation of they 401a and 801a is contrary.
Preferably, the input of water injector 5 is external with initial water supply line L0, and output is by automation flowmeter water valve 501
It is connected with the multiple telescopic sprinkler head 502 on the top being positioned at the first digestion section casing 4 inner space；Preferably, automatically
Change flowmeter water valve 501 to be electrically connected to the water yield be carried out Automated condtrol and there is cutting function with Master Control Room；Further preferably
, multiple scalable sprinkler heads 502 carry out flexible adjustment, length arrangement straggly according to the length of digestion section casing.
It addition, the hot water outlet of initial externally connected for the water supply line L0 heat exchanger X4 of water injector 5.This heat exchanger
X4 has the cooling gas vent added after hot gas inlet X6 and heat exchange of cooling water inlet X5 and hot water outlet and heat.Such as figure
Shown in 3a.
Preferably, set above the first digestion section casing 4 height material conveying side along this casing 4 sealing dust excluding hood 6
To being gradually increased, the external tapping 601 that gathers dust is positioned at the end of dust excluding hood 6, by this gather dust external tapping 601 and extraneous deduster
Or the pipeline of dust pelletizing system is connected.
Preferably, the casing of two-stage burnt lime digester 1 or three grades of burnt lime digesters 1 is additionally provided with digestion casing apparatus for examination and repair
10, this apparatus for examination and repair 10 includes one or more digestion casing apparatus for examination and repair door 10a and one or more digestion casing apparatus for examination and repair
The movable even mechanism 10b of door；Preferably, one or more digestion casing apparatus for examination and repair door moving connecting mechanism 10b are installed in
The bottom of the second casing or be simultaneously installed in the second casing and the 3rd respective bottom of casing, digests casing apparatus for examination and repair door 10a
Bottom with digestion casing apparatus for examination and repair door moving connecting mechanism 10b be connected, door 10a can rotate around this moving connecting mechanism 10b,
The top of digestion casing apparatus for examination and repair door 10a snaps connection with lower box top, i.e. this top can open and close.
In this application, two-stage digester is also referred to as upper and lower two-stage digester, and three grades of digesters are also referred to as upper and lower three grades of digestion
Device.
According to another aspect of the present invention, it is provided that a kind of use includes above-mentioned digestion and the dedusting dress of two-stage burnt lime digester
The quicklime slaking put and dust collection method, the method comprises the following steps:
1) quicklime slaking: put into by quick lime in the charging aperture 2 of two-stage burnt lime digester 1, via sealing transportation section case
Body 3 is transported in the first digestion section casing 4, by being positioned at top or the water injector 5 of sidepiece of the first digestion section casing 4
In the first digestion section casing 4, the quick lime material water spray of motion is so that quick lime moves on one side under the stirring action of shaft
While generation mixing and digestion, enter motion one under the stirring action of shaft again in the second digestion section casing 8 afterwards
There is mixing further and digestion in limit, postdigestive quick lime is discharged via the discharging opening 9 bottom burnt lime digester 1；With
2) dedusting of dusty gas: the dusty gas in sealing dust excluding hood 6 is from external tapping 601 quilt that gathers dust sealing dust excluding hood 6
Output is sprayed to the cleaning shaft Q4 of wet dust collector Q1, dusty gas by the liquid down tube channel showerhead Q401 of cleaning shaft Q4
Enter in the water of dedusting pond Q2, carry out dedusting by contacting with water, the net air that the gas after dedusting is arranged from shell of dust remover
Outlet Q303 is discharged.
According to a further aspect of the invention, it is provided that a kind of use includes above-mentioned digestion and the dedusting dress of three grades of burnt lime digesters
The quicklime slaking put and dust collection method, the method comprises the following steps:
1) quicklime slaking: put into by quick lime in the charging aperture 2 of three grades of burnt lime digesters 1, via sealing transportation section case
Body 3 is transported in the first digestion section casing 4, by being positioned at top or the water injector 5 of sidepiece of the first digestion section casing 4
In the first digestion section casing 4, the quick lime material water spray of motion is so that quick lime moves on one side under the stirring action of shaft
While generation mixing and digestion, enter motion one under the stirring action of shaft again in the second digestion section casing 8 afterwards
There is mixing further and digestion in limit, enters afterwards in the 3rd digestion section casing 14 and again transport under the stirring action of shaft
Dynamic while there is mixing further and digestion, postdigestive quick lime is discharged via the discharging opening 9 bottom burnt lime digester 1；
With
2) dedusting of dusty gas: the dusty gas in sealing dust excluding hood 6 is from external tapping 601 quilt that gathers dust sealing dust excluding hood 6
Output is sprayed to the cleaning shaft Q4 of wet dust collector Q1, dusty gas by the liquid down tube channel showerhead Q401 of cleaning shaft Q4
Enter in the water of dedusting pond Q2, carry out dedusting by contacting with water, the net air that the gas after dedusting is arranged from shell of dust remover
Outlet Q303 is discharged.
Embodiment 1
A kind of wet dust collector, this deduster Q1 includes:
Dedusting pond Q2；
It is positioned at the shell of dust remover Q3 above the Q2 of dedusting pond；
Cleaning shaft Q4,
The dedusting interface of the external limeslaker in one end of cleaning shaft Q4, the other end is from top to bottom through shell of dust remover Q3 also
Stretch in the dedusting pond Q2 below shell of dust remover Q3.One end that cleaning shaft Q4 stretches in the Q2 of dedusting pond is provided with liquid
Down tube channel showerhead Q401.Wherein the end of liquid down tube channel showerhead Q401 is network structure or loose structure.
Cleaning shaft Q4 passes from the middle part of shell of dust remover Q3.
This deduster Q1 also includes: be positioned at the overflow water water shutoff pond Q5 of Q2 side, dedusting pond.In dedusting pond Q2 and overflow
Between the Q5 of water seal pond, the water level adjustment hole Q301 opened in the lower end of shell of dust remover Q3 side.
Outside the shell of dust remover Q3 of water level adjustment hole Q301, side is provided with card and puts groove Q302 and water level control apparatus Q6.This water
Position adjusting means Q6 includes water level adjustable plate Q601, screw rod Q602, regulation valve Q603.Water level adjustable plate Q601 card is placed on
Described card is put in groove Q302.One end of screw rod Q602 is connected with water level adjustable plate Q601, the other end of screw rod Q602 with
Regulation valve Q603 connects.The width of the water level adjustable plate Q601 width slightly larger than water level adjustment hole Q301.
This deduster Q1 also includes: be arranged on the cover plate Q501 above overflow water water shutoff pond Q5.One end of cover plate Q501 with remove
Dirt device housing Q3 connects, and the other end inserts in overflow water water shutoff pond Q2.
Having a through hole on cover plate Q501, screw rod Q602 passes this through hole.
Q5 top, overflow water water shutoff pond is provided with overflow pipe Q502.It is used for regulating the water level in overflow water water shutoff pond.
Dedusting pond Q2 is provided with filling pipe Q201.It is used for as dedusting pond supplements water.
It is funnel-form or " V " type bottom the Q2 of dedusting pond.Sewage sludge tapping equipment Q203 it is provided with bottom the Q2 of dedusting pond.
Wherein the dedusting pond Q2 in shell of dust remover Q3 is provided above support Q7.It is provided with conduct below support Q7
Bubble punctures first group of woven wire Q701 (preferably V-type screen pack or V-type woven wire) a little.Above support Q7
It is provided with second group of woven wire Q702 and is preferably reverse V-shaped woven wire.
Wherein first group of woven wire Q701 and/or second group of woven wire Q702 alternating inclinations arrangement.Point of intersection is provided with sealing
Card Q703.
Wherein it is provided above sprinkler head Q8 at second group of woven wire Q702.It is used for spraying on second group of woven wire Q702
Water in dust removal or dedusting liquid.
Wherein it is provided above dash except mist plate Q9 at sprinkler head Q8.At dash except being provided with on shell of dust remover above mist plate Q9
Net air outlet Q303.
The present embodiment efficiency of dust collection reaches 99.9%.And the present embodiment can quick effluent sewerage mud
Embodiment 2
Repeating embodiment 1, simply overflow pipe Q502 is provided with overflow pipe valve Q503.Moisturizing water pipe Q201 is provided with moisturizing pipe valve
Q202。
The present embodiment efficiency of dust collection reaches 99.9%.The device of the present embodiment can realize controlling the position of the water surface in dedusting pond in real time
Put.
Embodiment 3
Repeat embodiment 1, simply in sewage sludge tapping equipment Q203, be additionally provided with hydraulic gage Q204.
The present embodiment efficiency of dust collection reaches 99.9%.The device of the present embodiment can detect the content of sewage sludge in dedusting pond,
Can effluent sewerage mud in time.
Embodiment 4
Repeat embodiment 1. simply this deduster and also include control system Q10, hydraulic gage Q204, overflow pipe valve Q503 and moisturizing
Pipe valve Q202 is connected with control system Q10.Control system Q10 controls hydraulic gage Q204, overflow pipe valve Q503 and moisturizing pipe valve
Q202.The device of the present embodiment can realize can only dedusting.
The present embodiment efficiency of dust collection reaches 99.9%.
Application Example 1
A kind of using method of wet dust collector, the method comprises the following steps:
(1) by filling pipe Q201 retaining in dedusting pond, regulate water level adjustable plate Q601, make water in the Q2 of dedusting pond
Position arrives predetermined value, closes moisturizing pipe valve Q202；
(2) dust flue gas fetched from burnt lime digester dust removal port passes through cleaning shaft Q4 from top to bottom from shell of dust remover Q3
Middle part enters in deduster Q1, by smoke property and the uninterrupted of flue gas, regulates water level control apparatus Q6, makes cleaning shaft
Q4 inserts certain position in the Q2 of dedusting pond, and cleaning shaft Q4 inserts under water and is provided with pipeline spray under cancellated liquid
Head Q401；
(3) dusty gas with certain speed sprays at liquid down tube channel showerhead Q401 at a relatively high speed through entering cleaning shaft Q4,
Entering after water layer produces percussion in water, the direction of motion of gas changes, and grit then continues by former due to the effect of inertia
Carrying out direction motion, stay in water after wherein most grit and water adhesion, smoke-shock water body is through the net of liquid down tube channel showerhead Q401
Shape structure cuts into minute bubbles, adds the contact area of flue gas and water, strengthens the water in dust removal seizure to dust, it is achieved first
Level impulse type water bath dedusting；
(4) in water bath dust-removing, flue gas, major part dust is removed, and remainder particle dust is through first group of wire
The second moisture film that net Q701 forms first moisture film and second group of woven wire Q702 is formed, micro-in flue gas of twice moisture film
Fine dust catches, it is achieved second level filtering type water film dedusting, and purified gas removes after mist plate Q9 processes from outlet through dash
Place discharges.
(5) dedusting pond Q2 is through long dedusting, has turned into sewage, by this sewage from funnel-form or " V " type dedusting
Sewage sludge tapping equipment Q203 bottom the Q2 of pond discharges, and carries out moisturizing from filling pipe Q201.
Comparative example 1
Using the equipment similar to Fig. 2, simply water level control apparatus uses the structure such as patent 00224384.9 as a result, regulate
Liquid level needs to open cover plate, is not easy to operation, and owing to water level regulation is not in place, cleaning shaft inserts nothing in dedusting pond
Method is controlled very well as a result, efficiency of dust collection is also reduced to less than 87%.
Comparative example 2
Use the equipment similar to Fig. 2, simply under the liquid of cleaning shaft pipeline without network structure shower nozzle, but directly as
Pipeline inserts in dedusting pond, and result flue gas has bigger impact to water, and forms bigger bubble so that the ash in bubble
Dirt or particulate matter are insufficient contact with water, and efficiency of dust collection is reduced to 83%.
Claims (11)
1. a wet dust collector (Q1), this deduster (Q1) including:
Dedusting pond (Q2)；
It is positioned at the shell of dust remover (Q3) of top, dedusting pond (Q2)；
Cleaning shaft (Q4),
It is characterized in that: one end of cleaning shaft (Q4) is external to one or more output containing dusty gas collection device (such as
The dedusting interface of limeslaker), the other end passes shell of dust remover (Q3) from top to bottom and stretches into shell of dust remover (Q3) lower section
In dedusting pond (Q2), cleaning shaft (Q4) stretches into the one end in dedusting pond (Q2) and is provided with liquid down tube channel showerhead (Q401), its
The end of middle liquid down tube channel showerhead (Q401) is network structure or loose structure；Preferably, cleaning shaft (Q4) is from deduster shell
The middle part of body (Q3) passes.
Wet dust collector the most according to claim 1, it is characterised in that: this deduster (Q1) also includes: be positioned at water in dust removal
The overflow water water shutoff pond (Q5) of pond (Q2) side, and between dedusting pond (Q2) and overflow water water shutoff pond (Q5), at deduster
The water level adjustment hole (Q301) that the lower end of housing (Q3) side is opened；
Preferably, it is provided with card in shell of dust remover (Q3) outside that water level adjustment hole (Q301) is other and puts groove (Q302) and water level regulation
Device (Q6), this water level control apparatus (Q6) includes water level adjustable plate (Q601), screw rod (Q602), regulation valve (Q603), water
Position adjustable plate (Q601) card is placed on described card and puts in groove (Q302), and one end of screw rod (Q602) is connected with water level adjustable plate (Q601),
The other end of screw rod (Q602) is connected with regulation valve (Q603), and the vertical width of its middle water level adjustable plate (Q601) is slightly larger than water level
The vertical width of adjustment hole (Q301).
Wet dust collector the most according to claim 2, it is characterised in that this deduster (Q1) also includes: be arranged on overflow
The cover plate (Q501) of top, water seal pond (Q5), one end of cover plate (Q501) is connected with shell of dust remover (Q3), and the other end inserts and overflows
In flowing water water shutoff pond (Q2), it is preferred that have a through hole on cover plate (Q501), screw rod (Q602) passes this through hole.
4. according to the wet dust collector according to any one of claim 1-3, it is characterised in that: overflow water water shutoff pond (Q5) top
It is provided with overflow pipe (Q502), is used for regulating the water level in overflow water water shutoff pond；Preferably, overflow pipe (Q502) is provided with excessive
Flow tube valve (Q503).
5. according to the wet dust collector according to any one of claim 1-4, it is characterised in that: in dedusting pond (Q2) upper setting
There is filling pipe (Q201), be used for as dedusting pond supplements water；Preferably, moisturizing water pipe (Q201) is provided with moisturizing pipe valve
(Q202)。
6. according to the wet dust collector according to any one of claim 1-5, it is characterised in that: dedusting pond (Q2) bottom is leakage
Bucket-shaped or " V " type or be rendered as inversed-cone shape, dedusting pond (Q2) bottom is provided with sewage sludge tapping equipment (Q203)；Preferably
, sewage sludge tapping equipment (Q203) is additionally provided with hydraulic gage (Q204).
7. according to the deduster in any of the one of claim 1-6, the wherein dedusting pond (Q2) in shell of dust remover (Q3)
It is provided above support (Q7), support (Q7) lower section is provided with the first group of woven wire (Q701) punctured a little as bubble (excellent
Elect V-type screen pack or V-type woven wire as) and it is provided above second group of woven wire (Q702) (preferably at support (Q7)
Reverse V-shaped woven wire)；Preferably, first group of woven wire (Q701) and/or second group of woven wire (Q702) alternating inclinations
Arrangement, point of intersection is provided with sealed card (Q703).
8., according to the deduster in any of the one of claim 1-7, wherein it is provided above second group of woven wire (Q702)
There is sprinkler head (Q8), be used for second group of woven wire (Q702) upper sprinkling water in dust removal or dedusting liquid；Preferably, at sprinkler head
(Q8) it is provided above dash and removes mist plate (Q9), at dash except being provided with net air outlet on the shell of dust remover of mist plate (Q9) top
(Q303)。
9., according to the deduster in any of the one of claim 5-8, this deduster also includes control system (Q10), hydraulic pressure
Meter (Q204), overflow pipe valve (Q503) and moisturizing pipe valve (Q202) are connected with control system (Q10), and control system (Q10) controls water
Pressure meter (Q204), overflow pipe valve (Q503) and moisturizing pipe valve (Q202).
10. use the dust collection method of wet dust collector or use wet dust collector according to any one of claim 1-9 to carry out dedusting
Method, the method comprises the following steps:
(1) by filling pipe (Q201) retaining in dedusting pond, regulation water level adjustable plate (Q601), make dedusting pond (Q2)
Middle water level arrives predetermined value, closes moisturizing pipe valve (Q202)；
(2) dusty gas (dust flue gas such as fetched from burnt lime digester dust removal port) is by cleaning shaft (Q4) from top to bottom
Enter deduster (Q1) from shell of dust remover (Q3) middle part, by smoke property and the uninterrupted of flue gas, regulation water level regulation dress
Putting (Q6), make cleaning shaft (Q4) insert certain position in dedusting pond (Q2), cleaning shaft (Q4) inserts a setting under water
There is liquid down tube channel showerhead (Q401) of network structure or loose structure；
(3) dusty gas flows through cleaning shaft (Q4) and sprays at liquid down tube channel showerhead (Q401) place, produces water layer after percussion
Entering in water, the direction of motion of gas changes, and grit then continues to move by original direction due to the effect of inertia, the biggest portion
Staying in water after dividing grit and water adhesion, smoke-shock water body cuts into minute bubbles through the network structure of liquid down tube channel showerhead (Q401),
Add the contact area of flue gas and water, strengthen the water in dust removal seizure to dust, it is achieved first order impulse type water bath dedusting；
(4) in water bath dust-removing, flue gas, major part dust is removed, and remainder particle dust is through first group of wire
The second moisture film that net (Q701) formation first moisture film and second group of woven wire (Q702) are formed, twice moisture film is in flue gas
Fine dust catches, it is achieved second level filtering type water film dedusting, purified gas through dash except mist plate (Q9) process after from
Exit is discharged.
(5) dedusting pond (Q2) is through long dedusting, has turned into sewage, by this sewage from funnel-form or " V " type dedusting
The sewage sludge tapping equipment (Q203) of bottom, pond (Q2) is discharged, and carries out moisturizing from filling pipe (Q201).
11. quicklime slakings and dust arrester, it include the wet dust collector (Q1) in any of the one of claim 1-10 and
Burnt lime digester, wherein wet dust collector (Q1) is by the external tapping phase of gathering dust of a cleaning shaft (Q4) with burnt lime digester
Connection；Preferably, burnt lime digester is two-stage burnt lime digester (1) or three grades of burnt lime digesters (1).
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| CN106390668A (en) * | 2016-12-15 | 2017-02-15 | 五河大丁自动化科技有限公司 | Solution cleaning type air purifier |
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| CN107174915A (en) * | 2017-07-27 | 2017-09-19 | 国网河南省电力公司西峡县供电公司 | One kind reclaims cable high-temperature separator exhaust treatment system |
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| CN111408214A (en) * | 2020-04-18 | 2020-07-14 | 程业春 | Industrial flue gas purification treatment method |
| CN111408214B (en) * | 2020-04-18 | 2020-10-30 | 江苏世清环保科技有限公司 | Industrial flue gas purification treatment method |
| CN112023569A (en) * | 2020-08-26 | 2020-12-04 | 哈尔滨理工大学 | Novel welding flue gas purification device |
| CN112827280A (en) * | 2021-01-07 | 2021-05-25 | 崔小勤 | Conical cooling and dedusting integrated system for treating waste gas |
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