CN105833627B - A kind of wet dust collector, dust removal method and quicklime slaking and dust-extraction unit - Google Patents
A kind of wet dust collector, dust removal method and quicklime slaking and dust-extraction unit Download PDFInfo
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- CN105833627B CN105833627B CN201610377691.6A CN201610377691A CN105833627B CN 105833627 B CN105833627 B CN 105833627B CN 201610377691 A CN201610377691 A CN 201610377691A CN 105833627 B CN105833627 B CN 105833627B
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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
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- 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
A kind of wet dust collector, the deduster (Q1) include：Dedusting pond (Q2)；Shell of dust remover (Q3) above dedusting pond (Q2)；Cleaning shaft (Q4), the dedusting interface of the external limeslaker in one end of cleaning shaft (Q4), the other end passes through shell of dust remover (Q3) and stretches into the dedusting pond (Q2) below shell of dust remover (Q3) from top to bottom, one end that cleaning shaft (Q4) stretches into dedusting pond (Q2) is provided with liquid down tube channel showerhead (Q401), and the wherein end of liquid down tube channel showerhead (Q401) is reticular structure or porous structure.A kind of efficient quicklime slaking wet dust collector of present invention offer and quicklime slaking dusting waste water treatment method, to solve the problems, such as that quicklime slaking dust removing effects are poor, and solve the problem of how existing quicklime slaking a large amount of dust flue gas problem of environmental pollution, lime slaking dedusting sewage environmental pollution and dedusting sewage recycle.
Description
Technical field
The present invention relates to steel sintering factory quicklime slaking dust removal field more particularly to a kind of efficient quicklime slaking water-baths
Deduster and quicklime slaking dusting waste water treatment method.
Background technology
With the development of modern industry, the raising of people's living standard, the requirement to environmental protection is higher and higher, safety in production,
Clean manufacturing has become the mark of modern enterprise civilization.
In iron and steel metallurgical industry, generally require iron ore into being sintered before blast furnace ironmaking, and quick lime pair
Sintering process plays more important role, and first, the granulating efficiency of mixed material is improved, improves bed permeability, with digestion
Before compare, mixture>The grade of 3mm increases 10% or more, and productivity of sintering machine can be made to improve 3%-5%；Second, contain
There is Ca (OH)2Sintering feed bead have higher wet volume capacity, thus thermal stability is good in sintering process, can resist dry zone
Destruction mitigates the influence of excessive moistening layer；Third improves material temperature；4th, reduce the consumption of solid fuel.Studies have shown that due to
The raising of material temperature is pelletized compared with the improvement of fruit, and Sintering Yield can be improved 10% or so, save coke powder 1.5kg/t, at present quick lime
Have become one of sintering plant main flux, matches in 3%-5%.
There are many deficiencies in terms of the digestion dedusting of current quick lime so that quicklime slaking area dust concentration is high, environment
Seriously polluted, dust removing effects are poor, and the deficiency being primarily present is：
One, existing digester is also very big to the pollution of environment, and sintering plant generally uses single-stage digester at present, when digestion
Between it is short, digestibility is low, and the dust of generation is more, and digestion zone dust concentration is too high, and environmental pollution is serious.
Two, unspecial digestion deduster, when quicklime slaking, will produce a large amount of ash-laden gas, due to flue gas characteristic
The dust removing effects of particularity, common deduster cannot be satisfied national emissions concentration standard, and very due to lime dust caking property
By force, cleaning shaft blocking, fan vibration etc. are easily caused.Quicklime slaking smoke characteristic, which not only results in quick lime and is adhered to, to be removed
Dirt pipeline blocks pipeline, but also the pole plate of heavy corrosion electric precipitator, influences its normal operation after hardened.It is removed using pocket type
When dirt device, also it can be forced to deactivate due to the hydraulicity causes cloth bag to paste stifled quickly.The presence of problem above seriously affects dust pelletizing system
Normal operation and efficiency of dust collection.
Three, there is the dust for removing quicklime slaking using wet dedusting at present, but dustiness is removed after existing wet dedusting
Water arbitrarily discharges, and not only causes secondary pollution to environment, but also waste resource.
The prior art directly enters flue gas leading oblique cutting in water, and flue gas has water larger impact, and forms larger gas
Bubble so that dust or particulate matter and water in bubble it is insufficient contact, cleaning, the effect of dedusting are bad.
Invention content
In order to solve quicklime slaking dust removal problem in sintering, further improves energy-saving and emission-reduction in sintering process and work, need
Quicklime slaking deduster is designed to solve the problems, such as that quicklime slaking dust removing effects are poor, and solves existing quicklime slaking ring
Border pollution problem.
The purpose of the present invention is to provide a kind of efficient quicklime slaking wet dust collector and quicklime slaking dedusting sewages
Processing method to solve the problems, such as that quicklime slaking dust removing effects are poor, and solves existing quicklime slaking a large amount of dust flue gas
The problem of how the problem of problem of environmental pollution, lime slaking dedusting sewage environmental pollution and dedusting sewage recycle.
The smoke characteristic that quicklime slaking generates is as follows：1, strong cohesive property and hydrophily, according to test, the fracture strength of CaO
It is strong cohesive property and strongly hydrophilic dust more than 600Pa, is easy to caking or is adhered on the inner wall of deduster and its pipeline；
2, the chemical reaction of polymolecularity, quick lime and water is violent exothermic reaction, the Ca (OH) of generation2The granularity pole of colloidal solid
Carefully, average grain diameter is 30 μm, and therefore, quick lime dust is easily diffused with thermal current and come in digestion process, and naturally heavy
Drop is very slow, and range of scatter is wide, and dust catching difficulty is big；3, the hydraulicity, quick lime add water digestion to generate Ca (OH)2, it is dispersed in sky
It can further absorb water in gas and CO2Reaction generates CaCO3Precipitation.Work as CaCO3Amount accumulation to a certain extent after, will be formed hard
Dirty and hardened, this is the hydraulicity of quick lime.
So for the smoke characteristic that quicklime slaking generates, the present invention provides a kind of efficient quicklime slaking water bath dust-removing
Device, the deduster are wet dedusting.
The first embodiment according to the present invention provides a kind of water bath dust collector (abbreviation wet dust collector)：
A kind of wet dust collector, the deduster include：
Dedusting pond；
Shell of dust remover above dedusting pond；
Cleaning shaft,
One end of cleaning shaft is external to output end (such as the lime slaking of one or more collection devices containing dusty gas
The dedusting interface of device), the other end passes through shell of dust remover and stretches into the dedusting pond below shell of dust remover from top to bottom.It removes
One end that dirt pipeline stretches into dedusting pond is provided with liquid down tube channel showerhead.Wherein the end of liquid down tube channel showerhead is reticular structure
Or porous structure.
Preferably, cleaning shaft passes through (i.e. along central axes) from the middle part of shell of dust remover.That is, cleaning shaft except
It is centrally located or is substantially centered setting in dirt device shell.
Preferably, the deduster further includes：Overflow water seal water pond positioned at dedusting pond side.In dedusting pond and overflow
Between flowing water water shutoff pond, in the water level regulation hole that the lower end of shell of dust remover side is issued.
Preferably, it is equipped with card on the outside of the shell of dust remover beside water level regulation hole and puts slot and water level control apparatus.It should
Water level control apparatus includes water level regulation plate, screw rod, regulating valve.Water level regulation board is placed on the card and puts in slot.Screw rod
One end connect with water level regulation plate, the other end of screw rod is connect with regulating valve.The vertical width of water level regulation plate is slightly larger than
The vertical width in water level regulation hole.Generally, the vertical width of water level regulation plate is enough to shelter from the vertical of the water level regulation hole
Width, the adjustable plate can be controlled by being located at the regulating valve of (and outside shell of dust remover) outside water level control apparatus above and below it
Activity come adjust block water level regulation hole block or sealing area and height.
Preferably, the deduster further includes：Cover board above overflow water seal water pond is set.One end of cover board and dedusting
Device shell connects, and the other end is inserted into overflow water seal water pond.
Preferably, it is opened on cover board there are one through-hole, screw rod passes through the through-hole.
Preferably, overflow water seal water pond top is provided with overflow pipe.For adjusting the water level in overflow water seal water pond.
Preferably, overflow pipe is equipped with overflow pipe valve.
Preferably, being provided with water supply pipe on dedusting pond.For to supplement water in dedusting pond.
Preferably, moisturizing water pipe is equipped with moisturizing pipe valve.
Preferably, dedusting basin bottom is funnel-form or " V " type or is rendered as inversed-cone shape (or back taper tubular).It removes
Dirt basin bottom is equipped with sewage sludge tapping equipment.
Preferably, it is additionally provided with hydraulic gage in sewage sludge tapping equipment.
Preferably, being provided with holder above dedusting pond wherein in shell of dust remover.It is provided with below holder
First group of woven wire (preferably V-type filter screen or V-type woven wire) a little is punctured as bubble.It is provided with above holder
Second group of woven wire is preferably reverse V-shaped woven wire.
Preferably, wherein first group of woven wire and/or second group of woven wire alternating inclinations arrangement.Point of intersection is arranged
There is sealing to block.
Preferably, being wherein provided with sprinkler head above second group of woven wire.For on second group of woven wire
Spray water in dust removal or dedusting liquid.
Preferably, being wherein provided with water blocking demisting plate above sprinkler head.The shell of dust remover above water blocking demisting plate
On be provided with net air outlet.
Preferably, the deduster further includes control system, hydraulic gage, overflow pipe valve and moisturizing pipe valve and control system connect
It connects.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 be supported on support bracket.One
As, cylindrical shape or oval cylinder is presented in the shell side of wet dust collector, i.e. the shell side cross sectional of wet dust collector is circle
Shape or ellipse.Also it can be rendered as four prism type, i.e. the shell side cross sectional of wet dust collector is rectangle or square.Water
The body height (height of i.e. entire shell) for bathing deduster is usually 1.2m-10m, preferably 1.5-7m, more preferable 2.0-5m.
According to second of embodiment provided by the invention, a kind of application method of wet dust collector is provided or using above-mentioned
The method that wet dust collector is dusted, this approach includes the following steps：
(1) by water supply pipe water storage into dedusting pond, water level regulation plate is adjusted, keeps water level arrival in dedusting pond predetermined
Value closes moisturizing pipe valve；
(2) dusty gas (such as the dust flue gas come from the dedusting interface of burnt lime digester) by cleaning shaft from upper
Enter in deduster in the middle part of shell of dust remover under and, by the uninterrupted of smoke property and flue gas, adjust water level control apparatus,
Cleaning shaft is set to be inserted into certain position (such as 0.2-0.8m) in dedusting pond, cleaning shaft is inserted into underwater one and is provided with net
The liquid down tube channel showerhead of shape structure or porous structure；
(3) (with certain speed), dusty gas flows through cleaning shaft and sprays (at a relatively high speed) at the liquid down tube channel showerhead
Go out, enter in water after generating percussion to water layer, the direction of motion of gas changes, and grit then continues due to the effect of inertia
It moves, is stayed in water after wherein most grit and water adhesion, smoke-shock water body is through liquid down tube channel showerhead by original direction
Reticular structure cuts into minute bubbles, increases the contact area of flue gas and water, strengthens capture of the water in dust removal to dust, realizes the
Level-one impulse type water bath dedusting；
(4) pass through water bath dust-removing, most of dust is removed in flue gas, and remainder particle dust is by first group of gold
Belong to silk screen and form the second moisture film that first of moisture film and second group of woven wire are formed, twice moisture film is to the fine powder in flue gas
Dirt is captured, and realizes that second level filtering type water film dedusting, purified gas are arranged after the processing of water blocking demisting plate from exit
Go out.
(5) prolonged dedusting is passed through in dedusting pond, has turned into sewage, by the sewage from funnel-form or " V " type water in dust removal
The sewage sludge tapping equipment in bottom of pond portion is discharged, and moisturizing is carried out from water supply pipe.
In the present invention, liquid down tube channel showerhead extends into certain position, insertion depth and powder in housing bottom dedusting pond
Dirt property is related, generally 20-80cm.Soot density is big, particle is thick, then insertion depth is such as 20~50cm；Soot density
It is small, particle is thin, then insertion depth is 30~80cm, and the purpose of pipeline nozzle is that flue gas is divided into multiple air columns to enter in water,
Increase contact of the flue gas with water, improves efficiency of dust collection.
In the present invention, it can make that water level is raised in dedusting pond when being passed through dusty gas or flue gas, excessively high water can
The overflow pond being arranged on the outside of adjustable plate is flowed to from water level regulation hole, and the water level in dedusting pond can be made to keep suitable in this way
Highly, can not only flue gas be made smoothly to be pumped into, but also also assures and does not have water depth to nozzle.
In the present invention, it is provided with holder above dedusting pond in shell, first group of metal is provided with below holder
Silk screen, the woven wire are one group of V-type filter screen, for the flue gas bubble from dedusting pond out to be punctured, and the gas that scatter
Stream.Reverse V-shaped second group of woven wire is provided with above holder.Second group of woven wire alternating inclinations arrangement, point of intersection setting
There is sealing to block, side is provided with sprinkler head on a wire mesh, is used for spraying dedusting liquid on woven wire, be formed on metal mesh
The moisture film to flow downward, then the bubble that flows to below holder puncture net and form second moisture film, fully capture dust.
In the present invention, water level control apparatus is arranged in this deduster, and water is realized by adjusting the height of water level regulation plate
Position regulatory function, when deduster exhaust fan starts, negative pressure is uprushed in deduster, and water level increases suddenly, but water can be from water level regulation
Hole is discharged to overflow water seal water pond, ensures that liquid down tube channel showerhead does not have water depth to stablize within limits, to protect wind turbine to keep away
Exempt from resistance to uprush and burn motor.When deduster normal operation, plate or more can be controlled to adjust by water level control apparatus regulating valve
It is mobile, water level is adjusted, nozzle capable of on-line does not have water depth, ensures the stabilization and Effec-tive Function of equipment.
According to the third embodiment the present invention, quicklime slaking and dust-extraction unit are provided, it includes above-mentioned water-bath
The external tapping that gathers dust that deduster and burnt lime digester, wherein wet dust collector pass through a cleaning shaft and burnt lime digester
It is connected.
Preferably, burnt lime digester is two-stage burnt lime digester or three-level burnt lime digester.Wet dust collector
It is connected with the external tapping that gathers dust of digester by a cleaning shaft.
Above-described two-stage burnt lime digester includes：Feed inlet, the sealing transportation section that front end is connected with feed inlet
Babinet, with sealing transportation section babinet rear end be connected first digestion section babinet, be located at first digestion section babinet top or
The water injector of side；Sealing dust excluding hood positioned at the first digestion section top of the box is located in the first digestion section babinet and separate
At the upper digestion babinet blanking of that one end of feed inlet and material mouth is disclosed, the second digestion section case being located at below the first digestion section babinet
Body is located in the second digestion section babinet and close to the discharge port of that one end of feed inlet；Wherein：It is built-in in the first digestion section babinet
There is a pair of the first agitating shaft with stirring blade, this pair of both first agitating shaft is driven by first driving means
And the direction of rotation of the two is opposite；In addition, being stirred equipped with second a pair of with stirring blade in the second digestion section babinet
Axis is mixed, this pair of both second agitating shaft is driven by the second driving device and the direction of rotation of the two is opposite；With it is close
Envelope dust excluding hood has the external tapping that gathers dust.
Above-described three-level burnt lime digester includes：Feed inlet, the sealing transportation section that front end is connected with feed inlet
Babinet, with sealing transportation section babinet rear end be connected first digestion section babinet, be located at first digestion section babinet top or
The water injector of side；Sealing dust excluding hood positioned at the first digestion section top of the box is located in the first digestion section babinet and separate
At the upper digestion babinet blanking of that one end of feed inlet and material mouth is disclosed, the second digestion section case being located at below the first digestion section babinet
Body, second in the second digestion section babinet and close to that one end of feed inlet digests at babinet blanking and discloses material mouth (to go out
Material mouth), it is located at the third below the second digestion section babinet and digests section babinet, is located in third digestion section babinet and far from feed inlet
That one end discharge port；Wherein：The first agitating shaft with stirring blade equipped with a pair in the first digestion section babinet, this
A pair of both the first agitating shafts are driven by first driving means and the direction of rotation of the two is opposite；Section is digested second
It is filled by the second driving equipped with a pair of the second agitating shaft with stirring blade, both this second a pair of agitating shafts in babinet
Set driving and the two direction of rotation it is opposite；Equipped with a pair of third with stirring blade in third digestion section babinet
Agitating shaft, this pair of both third agitating shaft is driven by third driving device and the direction of rotation of the two is opposite；With,
Sealing dust excluding hood has the external tapping that gathers dust.
In above two digester, it is preferable that one be located in the first agitating shaft in the second agitating shaft
Underface, and the direction of rotation of both is opposite.
For three-level digester, it is preferred that one in the second agitating shaft is located in the first agitating shaft
One underface, and the direction of rotation of both with one in third agitating shaft on the contrary, be located at the second agitating shaft
One underface in the middle, and the direction of rotation of both is opposite.
It is preferred that the input terminal of water injector and initial water supply line are external, output end by automate flowmeter water valve with
Multiple telescopic sprinkler head connections positioned at the top of the first digestion section housing interior volume；Preferably, flow is automated
Meter water valve is electrically connected to carry out automation control to water and has cutting function with Master Control Room；It may further be preferable that more
A scalable sprinkler head carries out flexible adjustment, length arrangement straggly according to the length of digestion section babinet.
In addition, the initial water supply line of water injector is connected to the hot water outlet of external heat exchanger.The heat exchanger has
The heat gas import of cooling water inlet and hot water outlet and heat and the cooling gas outlet after heat exchange.As shown in fig. 3a.
It is preferred that the height of sealing dust excluding hood set above the first digestion section babinet is along the material conveying side of the babinet
To gradually increasing, the external tapping that gathers dust is located at the end of dust excluding hood, passes through gather dust external tapping and extraneous deduster or the dedusting system
The pipeline of system is connected.
It is preferred that being additionally provided with digestion babinet maintenance dress on the babinet of two-stage burnt lime digester or three-level burnt lime digester
It sets, which includes that one or more digestion babinet apparatus for examination and repair doors and one or more digestion babinet apparatus for examination and repair doors are lived
Dong Lian mechanisms；Preferably, one or more digestion babinet apparatus for examination and repair door moving connecting mechanisms are installed in the second babinet
Bottom is installed in the second babinet and the respective bottom of third babinet simultaneously, digests bottom and the digestion of babinet apparatus for examination and repair door
Babinet apparatus for examination and repair door moving connecting mechanism connects, and door can be rotated around the moving connecting mechanism, digestion babinet apparatus for examination and repair door
Top is snapped connection with lower box top, i.e., this top can open and close.
In this application, the also referred to as upper and lower two-stage digester of two-stage digester, three-level digester also referred to as upper and lower three
Grade digester.
The length of two-stage or three-level digester in the application is usually 3-30m, preferably 4-20m, more preferable 5-10m.Two
Grade or three-level digester can be installed on support bracket or on pedestals.Two-stage in the application or three-level digester
It can be supported on holder or on pedestal.Preferably, it is arranged below the discharge port of two-stage or three-level digester defeated
Send belt.
According to another aspect of the present invention, provide it is a kind of using include two-stage burnt lime digester above-mentioned digestion with
The quicklime slaking and dust removal method of dust-extraction unit, this approach includes the following steps：
1) quicklime slaking：Quick lime is put into the feed inlet of two-stage burnt lime digester, via sealing transportation section
Babinet is transported in the first digestion section babinet, by the water injector positioned at the top of the first digestion section babinet or side to the
The quick lime material moved in one digestion section babinet is sprayed water so that quick lime moves one on one side under the stirring action of agitating shaft
While be mixed and digest, enter later in the second digestion section babinet. while moving under the stirring action of agitating shaft again
Further mixing and digestion occurs, postdigestive quick lime is discharged via the discharge port of burnt lime digester bottom；With
2) dedusting of dusty gas：The external tapping that gathers dust of dusty gas from sealing dust excluding hood in sealing dust excluding hood is defeated
Go out the cleaning shaft to wet dust collector, dusty gas is injected into the water in dedusting pond by the liquid down tube channel showerhead of cleaning shaft
In, it is dusted by being contacted with water, 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, provide it is a kind of using include three-level burnt lime digester above-mentioned digestion with
The quicklime slaking and dust removal method of dust-extraction unit, this approach includes the following steps：
1) quicklime slaking：Quick lime is put into the feed inlet of three-level burnt lime digester, via sealing transportation section
Babinet is transported in the first digestion section babinet, by the water injector positioned at the top of the first digestion section babinet or side to the
The quick lime material moved in one digestion section babinet is sprayed water so that quick lime moves one on one side under the stirring action of agitating shaft
While be mixed and digest, enter later in the second digestion section babinet. while moving under the stirring action of agitating shaft again
Further mixing and digestion occurs, enters later in third digestion section babinet and is moved on one side under the stirring action of agitating shaft again
Further mixing and digestion occur on one side, postdigestive quick lime is discharged via the discharge port of burnt lime digester bottom；With
2) dedusting of dusty gas：The external tapping that gathers dust of dusty gas from sealing dust excluding hood in sealing dust excluding hood is defeated
Go out the cleaning shaft to wet dust collector, dusty gas is injected into the water in dedusting pond by the liquid down tube channel showerhead of cleaning shaft
In, it is dusted by being contacted with water, 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 following advantageous effects：
1, gather impulse type water bath dedusting technology and filtering type moisture film dedusting technology advantage, targetedly capture big
Grain and fine dust, efficiency of dust collection are up to 99.9%.
2, water level in deduster can be adjusted when equipment is run, and reach higher purification efficiency, while ensureing purifier
Running resistance is relatively low, and equipment energy consumption is low.
3, using overflow pond, the fluctuation range of liquid level in purifier cylinder is controlled well, ensures purifier
Protective effect is played with stable purification efficiency, and to wind turbine.
4, dedusting sewage can again recycle after sewage disposal, reduce sewage discharge capacity, prevent secondary pollution.
5, the setting of the sewage sludge tapping equipment of V-type dedusting pond and bottom of pond makes the discharge of dedusting sewage sludge and follows
Ring utilizes, automatic controlled water replanishing, high degree of automation.
6, cleaning shaft of the present invention is inserted into from middle part in dedusting pond from top to bottom, and dedusting pond can be made to be arranged compared with low level
It sets or underground, has saved land used, avoided pollution.
7, the present invention efficiently solves the problems, such as that quicklime slaking dust removing effects are poor, and solves existing quicklime slaking
The problem of a large amount of dust flue gas environmental pollution.
In addition, the present invention also has 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, most
Bigization keeps quicklime slaking complete.In digestion process, heat loss is smaller, i.e. the amplitude of temperature drop is relatively low.Dust is bright in exhaust gas
It is aobvious to reduce, reduce the burden of follow-up dedusting.The power of stirring is shared by multiple agitating shafts, reduces the abrasion of driving equipment.
9, seal transportation section babinet in part be equipped with continuous conveyor screw blade, seal transportation section babinet inner wall with
Helixseal conveying is formed between continuous conveyor screw blade, and quick lime is only allowed to push ahead into digestion section babinet, it can
It effectively prevent steam anti-channeling to feeding mouth to cause hardened or influence belt conveyer scale weighing accuracy.
10, using Double shaft stirring form, have effects that stirring, crush the multiple actions such as caking and self-cleaning and；Improve life
Lime under agitation frequency makes quick lime be uniformly mixed with water, react abundant；Stirrer paddle welds carbide cutter tool using manganese steel plate
Head prolongs the service life.
11, it is digested as a result of multistage, also the automation control of water so that digestion effect is fine, the powder of generation
Dirt also accordingly largely reduces, and substantially improves the external environment in digestion place, and digestion region dust concentration is discharged far below country
Object concentration standard has administered the problem of environmental pollution of existing digestion zone.
12, it is directed to multistage digester level-one and digests section maintenance blind spot below, provide a kind of effective expansion maintenance
Method solves multistage digester maintenance problem.
Description of the drawings
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 equipped with control system.
Fig. 3 is the structural schematic diagram of (upper and lower) two-stage digester of the invention.
Fig. 3 a are the sheet for the hot water outlet that the initial water supply line L0 of wherein water injector 5 is connected to external heat exchanger X4
Invent the structural schematic diagram of (upper and lower) two-stage digester.
Fig. 4 is the overlooking structure diagram of digester shown in Fig. 2 of the present invention.
Fig. 5 is the left view schematic diagram of digester shown in Fig. 2 of the present invention.
Fig. 6 is the structural schematic diagram of (upper and lower) three-level digester of the invention.
Reference numeral：
Q1：Deduster；Q2：Dedusting pond；Q201：Water supply pipe；Q202：Moisturizing pipe valve；Q203：Sewage sludge discharge dress
It sets；Q204：Hydraulic gage；Q3：Shell of dust remover；Q301：Water level regulation hole；Q302：Card puts slot；Q303：Net air exports；Q4：
Cleaning shaft；Q 401：Liquid down tube channel showerhead；Q5：Overflow water seal water pond；Q501：Cover board；Q502：Overflow pipe；Q503：Overflow pipe
Valve；Q6：Water level control apparatus；Q601：Water level regulation plate；Q602：Screw rod；Q603：Regulating valve；Q7：Holder；Q701：First
Group woven wire；Q702：Second group of woven wire；Q703：Sealing card；Q8：Sprinkler head；Q9：Water blocking demisting plate；Q10：Control system
System.
In Fig. 3-6,1：Burnt lime digester；2- feed inlets；201- self seal valves；3- seals transportation section babinet；301-
Conveyor screw blade；4- first digests section babinet；Bed in the first beds of 4a- or the first digestion section babinet；401a and 401b-
First agitating shaft；402- stirring blades；5- water injectors；501- automates flowmeter water valve；The scalable sprinkler heads of 502-；6- is close
Seal dust excluding hood；601- gathers dust external tapping；7- first (on) digest at babinet blanking and disclose material mouth；7a- second (in) digestion babinet
At blanking and disclose material mouth；8- second digests section babinet；Bed in the second beds of 8a- or the second digestion section babinet；801a and
The second agitating shafts of 801b-；9- discharge ports；10- digests babinet apparatus for examination and repair；10a- digests babinet apparatus for examination and repair door；10b digests case
Device gate articulating device is repaiied in physical examination；11- first driving means；11a- first shaft couplings；11b- first gear casees；11c-
One bearing block；The second driving devices of 12-；12a- second shaft couplings；12b- second gear casees；12c- second bearing seats；13- thirds
Driving device；13a- third shaft couplings；13b- third gear-boxes；13c- 3rd bearing seats；14- thirds digest section babinet；14a-
Bed in third bed or third digestion section babinet；1401a and 1401b- third agitating shafts (to)；The initial water supply lines of L0-；
X4- heat-exchange devices；X5- cold water；X6- heat gas (such as ring cold machine hot wind).
Specific implementation mode
The first embodiment according to the present invention, provides a kind of wet dust collector：
A kind of wet dust collector, deduster Q1 include：
Dedusting pond Q2；
Shell of dust remover Q3 above the Q2 of dedusting pond；
Cleaning shaft Q4,
Output end (such as the lime slaking of the external one or more collection devices containing dusty gas in one end of cleaning shaft Q4
The dedusting interface of device), the other end passes through shell of dust remover Q3 and stretches into the dedusting pond below shell of dust remover Q3 from top to bottom
In Q2.One end that cleaning shaft Q4 is stretched into the Q2 of dedusting pond is provided with liquid down tube channel showerhead Q401.Wherein liquid down tube channel showerhead
The end of Q401 is reticular structure or porous structure.
Preferably, cleaning shaft Q4 is passed through from the middle part of shell of dust remover Q3.
Preferably, deduster Q1 further includes：Overflow water seal water pond Q5 positioned at the dedusting pond sides Q2.In water in dust removal
Between pond Q2 and overflow water seal water pond Q5, in the water level regulation hole Q301 that the lower end of the sides shell of dust remover Q3 is issued.
Preferably, it is equipped with card on the outside of the shell of dust remover Q3 beside the Q301 of water level regulation hole and puts slot Q302 and water level tune
Regulating device Q6.Water level control apparatus Q6 includes water level regulation plate Q601, screw rod Q602, regulating valve Q603.Water level regulation plate
Q601 cards are placed on the card and put in slot Q302.One end of screw rod Q602 is connect with water level regulation plate Q601, screw rod Q602's
The other end is connect with regulating valve Q603.The vertical width of water level regulation plate Q601 is slightly larger than the vertical width of water level regulation hole Q301
Degree.
Preferably, deduster Q1 further includes：Cover board Q501 above overflow water seal water pond Q5 is set.Cover board Q501
One end connect with shell of dust remover Q3, the other end is inserted into overflow water seal water pond Q2.
Preferably, it is opened on cover board Q501 there are one through-hole, screw rod Q602 passes through the through-hole.
Preferably, the overflow water seal water pond tops Q5 are provided with overflow pipe Q502.For adjusting in overflow water seal water pond
Water level.
Preferably, overflow pipe Q502 is equipped with overflow pipe valve Q503.
Preferably, being provided with water supply pipe Q201 on the Q2 of dedusting pond.For to supplement water in dedusting pond.
Preferably, moisturizing water pipe Q201 is equipped with moisturizing pipe valve Q202.
Preferably, the dedusting pond bottoms Q2 are funnel-form or " V " type.It is discharged equipped with sewage sludge the dedusting pond bottoms Q2
Device Q203.
Preferably, it is additionally provided with hydraulic gage Q204 in sewage sludge tapping equipment Q203.
Preferably, being provided with holder Q7 above dedusting pond Q2 wherein in shell of dust remover Q3.At holder Q7
Side is provided with punctures first group of woven wire Q701 (be preferably V-type filter screen or V-type woven wire) a little as bubble.It is propping up
It is preferably reverse V-shaped woven wire to be provided with second group of woven wire Q702 above frame Q7.
Preferably, wherein first group of woven wire Q701 and/or second group of woven wire Q702 alternating inclinations arrangement.It hands over
Sealing card Q703 is provided at point.
Preferably, being wherein provided with sprinkler head Q8 above second group of woven wire Q702.For to second group of metal
Water in dust removal or dedusting liquid are sprayed on silk screen Q702.
Preferably, being wherein provided with water blocking demisting plate Q9 above sprinkler head Q8.The dedusting above water blocking demisting plate Q9
Net air outlet Q303 is provided on device shell.
Preferably, the deduster further includes control system Q10, hydraulic gage Q204, overflow pipe valve Q503 and moisturizing pipe valve
Q202 is connect with control system Q10.Control system Q10 control hydraulic gages Q204, overflow pipe valve Q503 and moisturizing pipe valve Q202.
According to second of embodiment provided by the invention, a kind of application method of wet dust collector is provided or using above-mentioned
The dust removal method of wet dust collector, this approach includes the following steps：
(1) by water supply pipe Q201 water storages into dedusting pond, water level regulation plate Q601 is adjusted, water in the Q2 of dedusting pond is made
Position reaches predetermined value, closes moisturizing pipe valve Q202；
(2) dusty gas (dust flue gas such as fetched from burnt lime digester dust removal port) by cleaning shaft Q4 from it is upper by
Under enter in deduster Q1 in the middle part of shell of dust remover Q3, by the uninterrupted of smoke property and flue gas, adjust water level regulation dress
Set Q6, cleaning shaft Q4 made to be inserted into certain position in dedusting pond Q2, cleaning shaft Q4 be inserted into underwater one be provided with it is netted
The liquid down tube channel showerhead Q401 of structure；
(3) dusty gas with certain speed flows through cleaning shaft Q4 at liquid down tube channel showerhead Q401 with fair speed
Spray, enter in water after generating percussion to water layer, the direction of motion of gas changes, and grit due to inertia effect then after
It is continuous to be moved by original direction, it is stayed in water after wherein most grit and water adhesion, smoke-shock water body is through liquid down tube channel showerhead
The reticular structure of Q401 cuts into minute bubbles, increases the contact area of flue gas and water, strengthens capture of the water in dust removal to dust,
Realize first order impulse type water bath dedusting；
(4) pass through water bath dust-removing, most of dust is removed in flue gas, and remainder particle dust is by first group of gold
Belong to silk screen Q701 and form the second moisture film that first of moisture film and second group of woven wire Q702 are formed, twice moisture film is in flue gas
Fine dust captured, realize second level filtering type water film dedusting, purified gas is after water blocking demisting plate Q9 processing
It is discharged from exit.
(5) dedusting pond Q2 passes through prolonged dedusting, has turned into sewage, by the sewage from funnel-form or " V " type dedusting
The sewage sludge tapping equipment Q203 discharges of the pond bottoms Q2, moisturizing is carried out from water supply pipe Q201.
According to the third embodiment the present invention, quicklime slaking and dust-extraction unit are provided, it includes above-mentioned water-bath
Deduster Q1 and burnt lime digester, wherein wet dust collector Q1 are gathered dust by a cleaning shaft Q4 and burnt lime digester
External tapping is connected.
Preferably, burnt lime digester is two-stage burnt lime digester 1 or three-level burnt lime digester 1.Water bath dust-removing
Device Q1 is connected by a cleaning shaft Q4 with the external tapping 601 that gathers dust of digester 1.
That is, a kind of quicklime slaking and dust-extraction unit, it includes 1 He of above-mentioned wet dust collector Q1 and burnt lime digester,
Wet dust collector Q1 is connected by a cleaning shaft Q4 with the external tapping 601 that gathers dust of digester 1；Wherein burnt lime digester
1 can be used two-stage burnt lime digester 1 or three-level burnt lime digester 1.
Above-described two-stage burnt lime digester 1 includes：Feed inlet 2, the sealing conveying that front end is connected with feed inlet 2
Section babinet 3, the first digestion section babinet 4 being connected with the rear end of sealing transportation section babinet 3, is located at the first digestion section babinet 4
The water injector 5 on top or side；Sealing dust excluding hood 6 positioned at 4 top of the first digestion section babinet is located at the first digestion section babinet
In 4 and at the upper digestion babinet blanking of that one end far from feed inlet 2 and material mouth 7 is disclosed, is located at 4 lower section of the first digestion section babinet
Second digestion section babinet 8 is located in the second digestion section babinet 8 and close to the discharge port 9 of that one end of feed inlet 2；Wherein：
It is stirred equipped with a pair of the first agitating shaft 401a and 401b with stirring blade 402, the first of this pair in one digestion section babinet 4
The direction of rotation that both axis 401a and 401b are mixed by 11 drivings of first driving means and the two is opposite；In addition, second
It digests in section babinet 8 equipped with a pair of the second agitating shaft 801a and 801b with stirring blade, this second a pair of agitating shaft
Both 801a and 801b are opposite by the direction of rotation of 12 drivings of the second driving device and the two；With the sealing tool of dust excluding hood 6
Gather dust external tapping 601.
Above-described three-level burnt lime digester 1 includes：Feed inlet 2, the sealing conveying that front end is connected with feed inlet 2
Section babinet 3, the first digestion section babinet 4 being connected with the rear end of sealing transportation section babinet 3, is located at the first digestion section babinet 4
The water injector 5 on top or side；Sealing dust excluding hood 6 positioned at 4 top of the first digestion section babinet is located at the first digestion section babinet
In 4 and at the upper digestion babinet blanking of that one end far from feed inlet 2 and material mouth 7 is disclosed, is located at 4 lower section of the first digestion section babinet
Second digestion section babinet 8 is located at the second digestion babinet blanking in the second digestion section babinet 8 and close to that one end of feed inlet 2
Place and material mouth (i.e. discharge port) 7a is disclosed, is located at the third digestion section babinet 14 of 8 lower section of the second digestion section babinet, is located at third and digests
In section babinet 14 and the discharge port 9 of that one end far from feed inlet 2；Wherein：Equipped with a pair of tool in the first digestion section babinet 4
There is the first agitating shaft 401a and 401b of stirring blade 402, this pair of both first agitating shaft 401a and 401b passes through first
The direction of rotation of 11 drivings of driving device and the two is opposite；There is stirring equipped with a pair of in the second digestion section babinet 8
Second agitating shaft 801a and 801b of blade, this pair of both second agitating shaft 801a and 801b pass through the second driving device 12
It drives and the direction of rotation of the two is opposite；Equipped with a pair of third with stirring blade in third digestion section babinet 14
Agitating shaft 1401a and 1401b, this pair of both third agitating shaft 1401a and 1401b are driven by third driving device 13
And the direction of rotation of the two is opposite；With sealing dust excluding hood 6, which has, to gather dust external tapping 601.
In above two digester, it is preferable that a 801a in the second agitating shaft 801a and 801b is stirred positioned at first
The underface of a 401a in axis 401a and 401b is mixed, and the direction of rotation of both their 401a and 801a is opposite.
For three-level digester, it is preferred that a 801a in the second agitating shaft 801a and 801b is located at the
The underface of a 401a in one agitating shaft 401a and 401b, and the direction of rotation phase of both their 401a and 801a
One be instead located at a 1401a in third agitating shaft 1401a and 1401b in the second agitating shaft 801a and 801b
The underface of 801a, and the direction of rotation of both their 401a and 801a is opposite.
It is preferred that the input terminal of water injector 5 and initial water supply line L0 are external, output end is by automating flowmeter water valve
501 connect with multiple telescopic sprinkler heads 502 on the top positioned at 4 inner space of the first digestion section babinet；Preferably, certainly
Dynamicization flowmeter water valve 501 is electrically connected to carry out automation control to water and has 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 babinet.
In addition, the initial water supply line L0 of water injector 5 is connected to the hot water outlet of external heat exchanger X4.The heat exchanger
X4 has the cooling gas outlet after cooling water inlet X5 and hot water outlet and the heat gas import X6 of heat and heat exchange.Such as Fig. 3 a
Shown in.
It is preferred that the height of the sealing dust excluding hood 6 set by being digested above section babinet 4 first is defeated along the material of the babinet 4
Direction is sent to gradually increase, the external tapping 601 that gathers dust is located at the end of dust excluding hood 6, passes through gather dust external tapping 601 and the extraneous dedusting
Device or the pipeline of dust pelletizing system are connected.
It is preferred that being additionally provided with digestion babinet maintenance on the babinet of two-stage burnt lime digester 1 or three-level burnt lime digester 1
Device 10, the apparatus for examination and repair 10 include one or more digestion babinet apparatus for examination and repair door 10a and one or more digestion babinet inspections
It repaiies device gate activity and connects mechanism 10b；Preferably, one or more digestion babinet apparatus for examination and repair door moving connecting mechanism 10b quilts
It is installed in mounted on the bottom of the second babinet or simultaneously the second babinet and the respective bottom of third babinet, digestion babinet maintenance dress
The bottom for setting a 10a is connect with digestion babinet apparatus for examination and repair door moving connecting mechanism 10b, and door 10a can be around the moving connecting mechanism
10b is rotated, and the top of digestion babinet apparatus for examination and repair door 10a is snapped connection with lower box top, i.e., this top can beat Push And Release
It closes.
In this application, the also referred to as upper and lower two-stage digester of two-stage digester, three-level digester also referred to as upper and lower three
Grade digester.
According to another aspect of the present invention, provide it is a kind of using include two-stage burnt lime digester above-mentioned digestion with
The quicklime slaking and dust removal method of dust-extraction unit, this approach includes the following steps：
1) quicklime slaking：Quick lime is put into the feed inlet 2 of two-stage burnt lime digester 1, is conveyed via sealing
Section babinet 3 is transported in the first digestion section babinet 4, is filled by the water spray positioned at the top of the first digestion section babinet 4 or side
The quick lime material water spray that 5 move into the first digestion section babinet 4 is set so that quick lime is one under the stirring action of agitating shaft
Side movement is mixed and digests on one side, enters later in the second digestion section babinet 8 again one under the stirring action of agitating shaft
Side movement on one side occur further mixing and digestion, postdigestive quick lime via 1 bottom of burnt lime digester 9 row of discharge port
Go out；With
2) dedusting of dusty gas：Sealing gather dust external tapping of the dusty gas in dust excluding hood 6 from sealing dust excluding hood 6
601 are output to the cleaning shaft Q4 of wet dust collector Q1, the liquid down tube channel showerhead Q401 that dusty gas passes through cleaning shaft Q4
It is injected into the water of dedusting pond Q2, is dusted by being contacted with water, what the gas after dedusting was arranged from shell of dust remover
Net air outlet Q303 is discharged.
According to a further aspect of the invention, provide it is a kind of using include three-level burnt lime digester above-mentioned digestion with
The quicklime slaking and dust removal method of dust-extraction unit, this approach includes the following steps：
1) quicklime slaking：Quick lime is put into the feed inlet 2 of three-level burnt lime digester 1, is conveyed via sealing
Section babinet 3 is transported in the first digestion section babinet 4, is filled by the water spray positioned at the top of the first digestion section babinet 4 or side
The quick lime material water spray that 5 move into the first digestion section babinet 4 is set so that quick lime is one under the stirring action of agitating shaft
Side movement is mixed and digests on one side, enters later in the second digestion section babinet 8 again one under the stirring action of agitating shaft
Further mixing and digestion occur on one side for side movement, enter later in third digestion section babinet 14 and make again in the stirring of agitating shaft
Occur further to mix and digest while moving with lower, postdigestive quick lime goes out via 1 bottom of burnt lime digester
Material mouth 9 is discharged；With
2) dedusting of dusty gas：Sealing gather dust external tapping of the dusty gas in dust excluding hood 6 from sealing dust excluding hood 6
601 are output to the cleaning shaft Q4 of wet dust collector Q1, the liquid down tube channel showerhead Q401 that dusty gas passes through cleaning shaft Q4
It is injected into the water of dedusting pond Q2, is dusted by being contacted with water, what the gas after dedusting was arranged from shell of dust remover
Net air outlet Q303 is discharged.
Embodiment 1
A kind of wet dust collector, deduster Q1 include：
Dedusting pond Q2；
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 pass through shell of dust remover from top to bottom
Q3 is simultaneously stretched into the dedusting pond Q2 below shell of dust remover Q3.One end that cleaning shaft Q4 is stretched into 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 reticular structure or porous structure.
Cleaning shaft Q4 is passed through from the middle part of shell of dust remover Q3.
Deduster Q1 further includes：Overflow water seal water pond Q5 positioned at the dedusting pond sides Q2.In dedusting pond Q2 and overflow
Between flowing water water shutoff pond Q5, in the water level regulation hole Q301 that the lower end of the sides shell of dust remover Q3 is issued.
The other card that is equipped with puts slot Q302 and water level control apparatus Q6 on the outside of the shell of dust remover Q3 of water level regulation hole Q301.It should
Water level control apparatus Q6 includes water level regulation plate Q601, screw rod Q602, regulating valve Q603.Water level regulation plate Q601 cards are placed on institute
Card is stated to put in slot Q302.One end of screw rod Q602 is connect with water level regulation plate Q601, the other end of screw rod Q602 and adjusting
Valve Q603 connections.The width of water level regulation plate Q601 is slightly larger than the width of water level regulation hole Q301.
Deduster Q1 further includes：Cover board Q501 above overflow water seal water pond Q5 is set.One end of cover board Q501 with
Shell of dust remover Q3 connections, the other end are inserted into overflow water seal water pond Q2.
It is opened on cover board Q501 there are one through-hole, screw rod Q602 passes through the through-hole.
The overflow water seal water pond tops Q5 are provided with overflow pipe Q502.For adjusting the water level in overflow water seal water pond.
It is provided with water supply pipe Q201 on the Q2 of dedusting pond.For to supplement water in dedusting pond.
The dedusting pond bottoms Q2 are funnel-form or " V " type.The dedusting pond bottoms Q2 are equipped with sewage sludge tapping equipment Q203.
It is provided with holder Q7 above dedusting pond Q2 wherein in shell of dust remover Q3.Work is provided with below holder Q7
First group of woven wire Q701 (preferably V-type filter screen or V-type woven wire) a little is punctured for bubble.It is set above holder Q7
It is preferably reverse V-shaped woven wire to be equipped with second group of woven wire Q702.
Wherein first group of woven wire Q701 and/or second group of woven wire Q702 alternating inclinations arrangement.Point of intersection is arranged
There is sealing card Q703.
Wherein sprinkler head Q8 is provided with above second group of woven wire Q702.For on second group of woven wire Q702
Spray water in dust removal or dedusting liquid.
Water blocking demisting plate Q9 is wherein provided with above sprinkler head Q8.It is set on shell of dust remover above the water blocking demisting plate Q9
It is equipped with net air outlet Q303.
The present embodiment efficiency of dust collection reaches 99.9%.And sewage sludge can be quickly discharged in the present embodiment
Embodiment 2
Embodiment 1 is repeated, only overflow pipe Q502 is equipped with overflow pipe valve Q503.Moisturizing water pipe Q201 is equipped with water supply pipe
Valve Q202.
The present embodiment efficiency of dust collection reaches 99.9%.Real-time control dedusting pond Zhong Shui may be implemented in the device of the present embodiment
The position in face.
Embodiment 3
Embodiment 1 is repeated, is only additionally provided with hydraulic gage Q204 in sewage sludge tapping equipment Q203.
The present embodiment efficiency of dust collection reaches 99.9%.The device of the present embodiment can detect sewage sludge in dedusting pond
Sewage sludge can be discharged in content in time.
Embodiment 4
Repeating embodiment 1., only the deduster further includes control system Q10, hydraulic gage Q204, overflow pipe valve Q503 and benefit
Water pipe valve Q202 is connect with control system Q10.Control system Q10 control hydraulic gages Q204, overflow pipe valve Q503 and moisturizing pipe valve
Q202.The device of the present embodiment may be implemented can only dedusting.
The present embodiment efficiency of dust collection reaches 99.9%.
Application Example 1
A kind of application method of wet dust collector, this approach includes the following steps：
(1) by water supply pipe Q201 water storages into dedusting pond, water level regulation plate Q601 is adjusted, water in the Q2 of dedusting pond is made
Position reaches predetermined value, closes moisturizing pipe valve Q202；
(2) dust flue gas fetched from burnt lime digester dust removal port by cleaning shaft Q4 from top to bottom from deduster shell
Enter in deduster Q1 in the middle part of body Q3, by the uninterrupted of smoke property and flue gas, adjusts water level control apparatus Q6, make dust removing tube
Road Q4 is inserted into certain position in dedusting pond Q2, and cleaning shaft Q4 is inserted into underwater one and is provided with pipeline under the liquid of reticular structure
Nozzle Q401；
(3) with certain speed dusty gas pass through into cleaning shaft Q4 at liquid down tube channel showerhead Q401 with fair speed
Spray, enter in water after generating percussion to water layer, the direction of motion of gas changes, and grit due to inertia effect then after
It is continuous to be moved by original direction, it is stayed in water after wherein most grit and water adhesion, smoke-shock water body is through liquid down tube channel showerhead
The reticular structure of Q401 cuts into minute bubbles, increases the contact area of flue gas and water, strengthens capture of the water in dust removal to dust,
Realize first order impulse type water bath dedusting；
(4) pass through water bath dust-removing, most of dust is removed in flue gas, and remainder particle dust is by first group of gold
Belong to silk screen Q701 and form the second moisture film that first of moisture film and second group of woven wire Q702 are formed, twice moisture film is in flue gas
Fine dust captured, realize second level filtering type water film dedusting, purified gas is after water blocking demisting plate Q9 processing
It is discharged from exit.
(5) dedusting pond Q2 passes through prolonged dedusting, has turned into sewage, by the sewage from funnel-form or " V " type dedusting
The sewage sludge tapping equipment Q203 discharges of the pond bottoms Q2, moisturizing is carried out from water supply pipe Q201.
Comparative example 1
Using equipment similar with Fig. 2, only water level control apparatus is using the structure such as patent 00224384.9, as a result,
The highly desirable opening cover board of regulating liquid surface, is not easy to operate, and since water level regulation is not in place, and cleaning shaft is inserted into dedusting pond
In be unable to get fine control, as a result, efficiency of dust collection is also reduced to 87% or less.
Comparative example 2
Using equipment similar with Fig. 2, only under the liquid of cleaning shaft pipeline without reticular structure nozzle, but directly
It is inserted into dedusting pond as pipeline, as a result flue gas has water larger impact, and forms larger bubble so that in bubble
Dust or particulate matter and water it is insufficient contact, efficiency of dust collection is reduced to 83%.
Claims (26)
1. a kind of wet dust collector (Q1), the deduster (Q1) include：
Dedusting pond (Q2)；
Shell of dust remover (Q3) above dedusting pond (Q2)；
Cleaning shaft (Q4),
It is characterized in that：One end of cleaning shaft (Q4) is external to the output end of one or more collection devices containing dusty gas,
The other end passes through shell of dust remover (Q3) and stretches into the dedusting pond (Q2) below shell of dust remover (Q3), dedusting from top to bottom
One end that pipeline (Q4) stretches into dedusting pond (Q2) is provided with liquid down tube channel showerhead (Q401), wherein liquid down tube channel showerhead
(Q401) end is reticular structure or porous structure；
The deduster (Q1) further includes：Overflow water seal water pond (Q5) positioned at the side dedusting pond (Q2), and in dedusting pond
(Q2) between overflow water seal water pond (Q5), in the water level regulation hole that the lower end of the side shell of dust remover (Q3) is issued
(Q301)；
It is equipped with card on the outside of water level regulation hole (Q301) other shell of dust remover (Q3) and puts slot (Q302) and water level control apparatus
(Q6), which includes water level regulation plate (Q601), screw rod (Q602), regulating valve (Q603), water level tune
Section plate (Q601) card is placed on the card and puts in slot (Q302), and one end of screw rod (Q602) is connect with water level regulation plate (Q601),
The other end of screw rod (Q602) is connect with regulating valve (Q603), and wherein the vertical width of water level regulation plate (Q601) is slightly larger than water
The vertical width of position adjustment hole (Q301)；
The deduster (Q1) further includes：The cover board (Q501) being arranged above overflow water seal water pond (Q5), the one of cover board (Q501)
End is connect with shell of dust remover (Q3), and the other end is inserted into overflow water seal water pond (Q5), is opened on cover board (Q501) there are one through-hole,
Screw rod (Q602) passes through the through-hole.
2. wet dust collector according to claim 1, it is characterised in that：Cleaning shaft (Q4) is from shell of dust remover (Q3)
Middle part passes through.
3. wet dust collector according to claim 1 or 2, it is characterised in that：The top overflow water seal water pond (Q5) is provided with
Overflow pipe (Q502), for adjusting the water level in overflow water seal water pond.
4. wet dust collector according to claim 3, it is characterised in that：Overflow pipe (Q502) is equipped with overflow pipe valve
(Q503)。
5. according to the wet dust collector described in any one of claim 1-2 or 4, it is characterised in that：On dedusting pond (Q2)
It is provided with water supply pipe (Q201), for supplement water in dedusting pond.
6. wet dust collector according to claim 3, it is characterised in that：It is provided with water supply pipe on dedusting pond (Q2)
(Q201), for supplement water in dedusting pond.
7. wet dust collector according to claim 5, it is characterised in that：Water supply pipe (Q201) is equipped with moisturizing pipe valve
(Q202)。
8. wet dust collector according to claim 6, it is characterised in that：Water supply pipe (Q201) is equipped with moisturizing pipe valve
(Q202)。
9. according to the wet dust collector described in any one of claim 1-2,4 or 6-7, it is characterised in that：Dedusting pond (Q2)
Bottom is funnel-form, and the bottom dedusting pond (Q2) is equipped with sewage sludge tapping equipment (Q203).
10. wet dust collector according to claim 3, it is characterised in that：The bottom dedusting pond (Q2) is funnel-form, dedusting
The bottom pond (Q2) is equipped with sewage sludge tapping equipment (Q203)；It is additionally provided with hydraulic pressure in sewage sludge tapping equipment (Q203)
It counts (Q204).
11. wet dust collector according to claim 5, it is characterised in that：The bottom dedusting pond (Q2) is funnel-form, dedusting
The bottom pond (Q2) is equipped with sewage sludge tapping equipment (Q203)；It is additionally provided with hydraulic pressure in sewage sludge tapping equipment (Q203)
It counts (Q204).
12. wet dust collector according to claim 9, it is characterised in that：In sewage sludge tapping equipment (Q203) also
It is provided with hydraulic gage (Q204).
13. according to the deduster described in any one of claim 1-2,4,6-8 or 10-12, wherein in shell of dust remover
(Q3) be provided with holder (Q7) above dedusting pond (Q2) in, be provided with below holder (Q7) as bubble puncture a little the
One group of woven wire (Q701) and second group of woven wire (Q702) is provided with above the holder (Q7).
14. deduster according to claim 3, wherein dedusting pond (Q2) the top setting in shell of dust remover (Q3)
There is holder (Q7), is provided with below the holder (Q7) and punctures first group of woven wire (Q701) a little as bubble and in holder
(Q7) top is provided with second group of woven wire (Q702).
15. deduster according to claim 5, wherein dedusting pond (Q2) the top setting in shell of dust remover (Q3)
There is holder (Q7), is provided with below the holder (Q7) and punctures first group of woven wire (Q701) a little as bubble and in holder
(Q7) top is provided with second group of woven wire (Q702).
16. deduster according to claim 13, wherein first group of woven wire (Q701) is V-type woven wire, second
Group woven wire (Q702) is reverse V-shaped woven wire；First group of woven wire (Q701) and/or second group of woven wire (Q702)
Alternating inclinations arrange, and point of intersection is provided with sealing card (Q703).
17. the deduster according to claims 14 or 15, wherein first group of woven wire (Q701) is V-type woven wire,
Second group of woven wire (Q702) is reverse V-shaped woven wire；First group of woven wire (Q701) and/or second group of woven wire
(Q702) alternating inclinations arrange, and point of intersection is provided with sealing card (Q703).
18. deduster according to claim 13, wherein being provided with sprinkler head above second group of woven wire (Q702)
(Q8), it is used for spraying water in dust removal on second group of woven wire (Q702).
19. according to the deduster described in any one of claim 14-16, wherein above second group of woven wire (Q702)
It is provided with sprinkler head (Q8), is used for spraying water in dust removal on second group of woven wire (Q702).
20. deduster according to claim 18, wherein it is provided with water blocking demisting plate (Q9) above sprinkler head (Q8),
Net air outlet (Q303) is provided with above water blocking demisting plate (Q9) on shell of dust remover.
21. deduster according to claim 19, wherein it is provided with water blocking demisting plate (Q9) above sprinkler head (Q8),
Net air outlet (Q303) is provided with above water blocking demisting plate (Q9) on shell of dust remover.
22. according to the deduster described in any one of claim 1-2,4,6-8,10-12,14-16,18 or 20-21, this is removed
Dirt device further includes control system (Q10), hydraulic gage (Q204), overflow pipe valve (Q503) and moisturizing pipe valve (Q202) and control system
(Q10) it connects, control system (Q10) controls hydraulic gage (Q204), overflow pipe valve (Q503) and moisturizing pipe valve (Q202).
23. deduster according to claim 3, which further includes control system (Q10), and hydraulic gage (Q204) overflows
Flow tube valve (Q503) and moisturizing pipe valve (Q202) are connect with control system (Q10), and control system (Q10) controls hydraulic gage
(Q204), overflow pipe valve (Q503) and moisturizing pipe valve (Q202).
24. a kind of method being dusted using any one of the claim 1-23 wet dust collectors, this method include with
Lower step：
(1) by water supply pipe (Q201) water storage into dedusting pond, water level regulation plate (Q601) is adjusted, is made in dedusting pond (Q2)
Water level reaches predetermined value, closes moisturizing pipe valve (Q202)；
(2) dusty gas is entered in the middle part of shell of dust remover (Q3) in deduster (Q1) from top to bottom by cleaning shaft (Q4),
By the uninterrupted of smoke property and flue gas, water level control apparatus (Q6) is adjusted, cleaning shaft (Q4) is made to be inserted into dedusting pond
(Q2) certain position in, cleaning shaft (Q4) are inserted into underwater one and are provided with pipeline spray under the liquid of reticular structure or porous structure
Head (Q401)；
(3) dusty gas flows through cleaning shaft (Q4) and is sprayed at liquid down tube channel showerhead (Q401), and percussion is generated to water layer
Enter in water afterwards, the direction of motion of gas changes, and grit is since the effect of inertia then continues to move by original direction, wherein greatly
It is stayed in water after part grit and water adhesion, reticular structure of the smoke-shock water body through liquid down tube channel showerhead (Q401) cuts into small
Bubble increases the contact area of flue gas and water, strengthens capture of the water in dust removal to dust, realizes that first order impulse type water bath removes
Dirt；
(4) pass through water bath dust-removing, most of dust is removed in flue gas, and remainder particle dust passes through first group of wire
The second moisture film that first of the moisture film and second group of woven wire (Q702) that net (Q701) is formed are formed, twice moisture film is to flue gas
In fine dust captured, realize second level filtering type water film dedusting, purified gas through water blocking demisting plate (Q9) at
It is discharged from exit after reason；
(5) dedusting pond (Q2) passes through prolonged dedusting, has turned into sewage, by the sewage from the bottom funnel-form dedusting pond (Q2)
The sewage sludge tapping equipment (Q203) in portion is discharged, and moisturizing is carried out from water supply pipe (Q201).
25. quicklime slaking and dust-extraction unit, it includes the wet dust collector (Q1) described in any one of claim 1-23
And burnt lime digester, wherein wet dust collector (Q1) are external by a cleaning shaft (Q4) and gathering dust for burnt lime digester
Mouth is connected.
26. quicklime slaking according to claim 25 and dust-extraction unit, it is characterised in that：The burnt lime digester is
Two-stage burnt lime digester (1) or three-level burnt lime digester (1).
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| CN110748373A (en) * | 2019-10-25 | 2020-02-04 | 重庆懿熙品牌策划有限公司 | Differential pressure mechanism and airtight space ventilation device thereof |
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| CN2069747U (en) * | 1990-06-16 | 1991-01-23 | 长沙市环境保护研究所 | High-efficiency wet-type dust collector |
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| CN110748373A (en) * | 2019-10-25 | 2020-02-04 | 重庆懿熙品牌策划有限公司 | Differential pressure mechanism and airtight space ventilation device thereof |
| CN110748373B (en) * | 2019-10-25 | 2021-06-04 | 重庆懿熙品牌策划有限公司 | Ventilation device for underground closed space |
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