CN206033580U

CN206033580U - Lime slaking , dust removal and sewage sludge processing apparatus

Info

Publication number: CN206033580U
Application number: CN201620518501.3U
Authority: CN
Inventors: 刘海玉; 刘水石; 伍岳; 段炼; 苏道; 李康
Original assignee: Zhongye Changtian International Engineering Co Ltd
Current assignee: Zhongye Changtian International Engineering Co Ltd
Priority date: 2016-06-01
Filing date: 2016-06-01
Publication date: 2017-03-22
Anticipated expiration: 2026-06-01

Abstract

Lime slaking, dust removal and sewage sludge processing apparatus, it includes: lime slaking ware (1), water -bath deduster (Q1) and sewage treatment plant, wherein sewage treatment plant includes the effluent water sump, set up the agitating unit on the effluent water sump, sewage pump and sludge dewaterer, sealed dust excluding hood (6) that have the external tapping that gathers dust (601) are equipped with with wherein lime slaking ware (1), water -bath deduster (Q1) is linked together with the external tapping that gathers dust (601) of digester (1) through a cleaning tube (Q4), water -bath deduster's (Q1) bottom has the dust removal sewage pipe of intercommunication to above -mentioned effluent water sump.

Description

Quicklime slaking, dedusting and sewage sludge processing meanss

Technical field

The utility model is related to steel sintering factory quicklime slaking field, more particularly to for a kind of efficient quicklime slaking, Dedusting and sewage disposal system.Digestion and digestion dedusting and the sewage environmental pollution of quick lime are solved the problems, such as mainly.

Background technology

With the development of modern industry, the raising of people's living standard, the requirement more and more higher to environmental protection, keep the safety in production, Clean manufacturing has become the mark of modern enterprise civilization.

Quick lime, also known as lime, main component is calcium oxide, chemical formula CaO, relative molecular mass 56.08；White chunks Or powdery, cubic system, in industrial goods, Chang Yin contains MgO, Al₂O₃And Fe₂O₃It is in lead, faint yellow or brown Deng impurity； 3.25～3.38g/cm3 of relative density, real density 3.34g/cm3,1.6～2.8g/cm3 of bulk density, 2614 DEG C of fusing point, boiling point 2850℃；It is dissolved in acid.The commonly used calcium hydroxides of metallurgy industry Jing (also known as white lime), its main component is calcium hydroxide, chemistry Formula Ca (OH)₂, calcium hydroxide is the product of quick lime and water reaction, releases heat during the course of the reaction, and reaction equation is as follows：

CaO+H₂O=Ca (OH)₂+64.9kJ

Sintering is, by various powdery iron-containing raw materials, to be put on agglomerating plant and light a fire after suitable flux and fuel mixing granulation Sintering, in the presence of fuel produces hyperpyrexia and series of physical chemical change, makes partial blend surface occur to soften and melt Change, produce a number of liquid phase, and moisten other unfused ore particles, after cooling, mineral powder granular is bondd by liquid phase Into the process of sintering deposit.Quick lime is one of main flux of sintering, and which plays more important effect to sintering process.Raw stone Ash is carried out reacting with water and generates the superfine calcium hydroxide of granularity, and in colloidal solid, particle is superfine, and specific surface area is up to 300,000 cm²/ g, Be conducive to compound balling-up, improve the gas permeability of granulating efficiency and sinter bed.Containing Ca (OH)₂Sintering feed bead have higher Wet volume capacity, thus heat endurance is good in sintering process, can resist the destruction of dry zone, mitigates the impact of excessive moistening layer. In addition, amount of heat is released in quick lime and water course of reaction, improve material temperature, reduce the consumption of solid fuel.

A large amount of ash-laden gas can be produced during quicklime slaking, due to the particularity of flue gas characteristic, common electric precipitation and cloth bag Dedusting is not applied to, and current sintering plant generally adopts water bath dust-removing technology for quicklime slaking flue gas, although dust removing effects are obtained To improvement, but the dedusting sewage that water bath dust-removing is produced is not arranged through any effective process outward, causes secondary pollution and waste, The presence of the problem seriously governs application of the wet dust collector in sintering.

In iron and steel metallurgical industry, generally require and iron ore is sintered before blast furnace ironmaking is entered, and quick lime pair Sintering process plays more important effect, and first, the granulating efficiency of mixed material is improved, improves bed permeability, with digestion Before compare, compound>The grade of 3mm increased more than 10%, 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 in sintering process, heat endurance is good, can resist dry zone Destruction, mitigates the impact of excessive moistening layer；3rd, improve material temperature；4th, reduce the consumption of solid fuel.Research shows, due to The raising of material temperature, the improvement of relatively fruit of pelletizing, Sintering Yield can improve 10% or so, save coke powder 1.5kg/t；Current quick lime One of sintering plant main flux is had become, proportioning is in 3%-5%.

Before sintering machine is entered, in addition it is also necessary to also have postdigestive white lime to mix in mixing drum iron ore concentrate, coking coal powder And granulation, then go sintering machine to be sintered again.Existing technique is that quick lime and other raw materials are deposited in same dispensing Workshop, Jing after of short duration digestion, Jing tape transports into drum mixer are mixed and are made quick lime together with other raw materials Grain.Existing this procedure is primarily present problems with：

First, sintering plant generally adopts single-stage digester, and digestion time is short, and digestibility is low, and indigested quick lime is mixed one Continue digestion in mixed with two.1～1.5 times of volumetric expansion during quicklime slaking, destroys the granulation bead of balling-up, affects the bed of material Gas permeability, does not give full play to the digestion of quick lime.

2nd, there is no special digestion deduster.A large amount of ash-laden gas can be produced during quicklime slaking, due to flue gas characteristic Particularity, the dust removing effects of common deduster cannot meet national emissions concentration standard, and due to lime dust caking property very By force, cleaning shaft blocking, fan vibration etc. are easily caused.

3rd, additionally, dedusting sewage, steel-smelting sewage sludge, dedusting sludge etc. are not effectively addressed, cause to waste and secondary Pollution.

4th, pollution of the existing digester to environment is also very big.A large amount of ash-laden gas can be produced during quicklime slaking, due to The particularity of flue gas characteristic, common electric precipitation and bag-type dust are not applied to.Process and emission measure because not effective so that Digestion region dust concentration is up to 200mg/m3, far above national emissions concentration standard, seriously polluted.

5th, release amount of heat during quick lime and water digestion reaction, postdigestive white lime due to own temperature compared with Height, is also easy to produce steam in transportation, if quick lime and other raw materials are located at same batch plant, due to batch plant with Between drum mixer, distance is longer, and a large amount of steam are produced during white lime long-distance transportation to drum mixer, and steam is waved A large amount of dust is carried while sending out, partial heat is not only taken away, also surrounding enviroment is polluted, but also white lime can be reduced Temperature and humidity, certain impact is caused on follow-up batch mixing and granulation so that white lime is beaten to sintering process role greatly Discount.

6th, digestion water adopts cold water, and temperature is low, affects quicklime slaking effect.

7th, quick lime feed bin and its digestion and other raw materials are placed on into same batch plant, are passed through together after mixing again To drum mixer, this causes batch plant other raw material storages to diminish to conveyer belt long distance delivery, while also making in digestion It is serious into digestion region smoke contamination；This not only also increases cost of transportation, also add energy consumption, also pollutes environment.

The presence of problem above has a strong impact on the digestion of quick lime, dedusting, the process for also having sewage sludge.In order to solve to burn Quicklime slaking and dust removal problem in knot, further improve energy-saving and emission-reduction work in sintering process, need to design quicklime slaking And dust pelletizing system is poor to solve the problems, such as raw ash digestion effect, solves the dust removal problem that quicklime slaking brings again.

In addition, to solve the above problems, further improving energy-saving and emission-reduction work in sintered material hybrid technique, needing design New quick lime sintered material hybrid technique.

Utility model content

The purpose of this utility model is to provide a kind of efficient burnt lime digester, with solve digester digestive efficiency it is low and The problem of digestion effect difference, and the problems such as a large amount of dust smoke pollution.

The utility model provides a kind of efficient burnt lime digester, and the digester is multistage digester, there is provided perfect is more Level digestion process, quick lime falls on the belt conveyer scale under storehouse from ash silo, then sends in multistage digester by conveying worm Row digestion.

Digester described herein be multistage digester, that is, digest section have it is upper and lower two or more.

Another purpose of the present utility model is to provide a kind of efficient quicklime slaking and batch mixing and dust pelletizing system, to solve Certainly quicklime slaking is insufficient, the low problem of digester efficiency of dust collection, and cleaning shaft blocking, fan vibration, dedusting sewage The problems such as process.

Solve limeslaker dust removal problem it may first have to understand physics, the chemistry of the technique and dust of lime slaking Characteristic.Quicklime slaking is a chemical reaction process, i.e. quick lime (CaO) adds water (H₂O) generate calcium hydroxide (Ca (OH)₂) And release substantial amounts of heat.The dust main component that digester is produced is CaO, Ca (OH)₂And water vapour.Dust is being collected and is being located During reason, calcium hydroxide (Ca (OH)₂) and generate calcium carbonate (CaCO with the carbon dioxide reaction part in air₃), Ca (OH)₂And CaCO₃Deng easily sticking on deduster and dedusting tube wall, here it is causing deduster and cleaning shaft blocking, blower fan The true cause of vibration.

The utility model provides a kind of efficient quicklime slaking and dust pelletizing system, to solve quicklime slaking in prior art It is insufficient, there is lime dust to collect, the problems such as deduster and cleaning shaft blocking, fan vibration, dust waste water are recycled.

The utility model also provides a kind of sewage-treatment plant.

According to first embodiment of the present utility model, there is provided quicklime slaking, dedusting and sewage-treatment plant, it wraps Include：Burnt lime digester, wet dust collector and sewage-treatment plant, wherein sewage-treatment plant include cesspool, are arranged at dirt Agitating device, sewage pump and sludge dewatering equipment on pond, and wherein burnt lime digester is equipped with the close of external tapping that gather dust Envelope dust excluding hood, wet dust collector are connected with the external tapping that gathers dust of digester by a cleaning shaft, the bottom of wet dust collector Portion has the dedusting sewage pipe for being communicated to above-mentioned cesspool.

It is preferred that, burnt lime digester is two-stage burnt lime digester, and it includes：Charging aperture, front end are connected with charging aperture Sealing transportation section casing, with sealing transportation section casing rear end be connected first digestion section casing, positioned at first digestion section The top of casing or the water injector of sidepiece；Positioned at the sealing dust excluding hood of the first digestion section casing top, positioned at the first digestion section In casing and away from the upper digestion casing blanking of that one end of charging aperture and material mouth is disclosed, below the first digestion section casing Second digestion section casing, in the second digestion section casing and near the discharging opening of that one end of charging aperture；Wherein：Disappear first Change both the first shaft with stirring vane that section casing is built with a pair, this pair first shaft to drive by first Dynamic device is driven and both direction of rotation is contrary；In addition, in the second digestion section casing built with a pair with stirring Both second shaft of blade, this pair second shaft are by the second driving means are driven and both rotation side To contrary；With sealing dust excluding hood has the external tapping that gathers dust.

It is preferred that, burnt lime digester is three-level burnt lime digester, and it includes：Charging aperture, front end are connected with charging aperture Sealing transportation section casing, with sealing transportation section casing rear end be connected first digestion section casing, positioned at first digestion section The top of casing or the water injector of sidepiece；Positioned at the sealing dust excluding hood of the first digestion section casing top, positioned at the first digestion section In casing and away from the upper digestion casing blanking of that one end of charging aperture and material mouth is disclosed, below the first digestion section casing Second digestion section casing, positioned at second digestion section casing in and near charging aperture that one end second digestion casing blanking at and Material mouth (i.e. discharging opening) is disclosed, the 3rd digestion section casing below the second digestion section casing, in the 3rd digestion section casing And the discharging opening of that one end away from charging aperture；Wherein：In the first digestion section casing built with a pair with stirring vane Both first shaft, this pair first shaft are by first driving means are driven and both direction of rotation phase Instead；The second shaft with stirring vane that section casing is built with a pair, this pair second shaft two are digested second Person by the second driving means it is driven and both direction of rotation it is contrary；The tool that section casing is built with a pair is digested the 3rd Have the 3rd shaft of stirring vane, both this pair the 3rd shafts by the 3rd driving means it is driven and both Direction of rotation is contrary；With sealing dust excluding hood has the external tapping that gathers dust.

It is further preferred that for two-stage digester, in the middle of the second shaft is located at a 's in the middle of the first shaft Underface, and the direction of rotation of both is contrary.

It is further preferred that for three-level digester, in the middle of the second shaft is located at a 's in the middle of the first shaft Underface, and the direction of rotation of both is conversely, be located in the middle of the second shaft with the middle of the 3rd shaft The underface of one, and the direction of rotation of both is contrary.

It is preferred that, the input of water injector is external with initial water supply line, output end by automate flowmeter water valve with Positioned at the multiple telescopic sprinkler head connection on the top of the first digestion section housing interior volume；Preferably, automate flow Meter water valve is electrically connected to carry out the water yield Automated condtrol and have cutting function with Master Control Room；It may further be preferable that many Individual scalable sprinkler head carries out flexible adjustment, length arrangement straggly according to the length of digestion section casing.

In addition, the hot water outlet of the externally connected heat exchanger of the initial water supply line of water injector.The heat exchanger has Cooling gas outlet after the hot gas import and heat exchange of cooling water inlet and hot water outlet and heat.As shown in Figure 2 a.

It is preferred that, above the first digestion section casing, the height of set sealing dust excluding hood is along the material conveying side of the casing To gradually increasing, the external tapping that gathers dust is located at the end of dust excluding hood, by gather dust external tapping and deduster or the dedusting system in the external world The pipeline of system is connected.

It is preferred that, digestion casing maintenance dress is additionally provided with the casing of two-stage burnt lime digester or three-level burnt lime digester Put, the apparatus for examination and repair includes that one or more digestion casing apparatus for examination and repair doors and one or more digestion casing apparatus for examination and repair doors are lived Dong Lian mechanisms；Preferably, one or more digestion casing apparatus for examination and repair door moving connecting mechanisms are installed in the second casing Bottom while be installed in the second casing and the respective bottom of the 3rd casing, digests bottom and the digestion of casing apparatus for examination and repair door Casing apparatus for examination and repair door moving connecting mechanism connects, and digestion casing apparatus for examination and repair door can be rotated around the moving connecting mechanism, digestion The top of casing apparatus for examination and repair door is snapped connection with lower box top, i.e., Push And Release can be beaten in the digestion casing apparatus for examination and repair door top Close.

It is preferred that, above-described wet dust collector includes：

Dedusting pond；

Shell of dust remover above dedusting pond；

Cleaning shaft,

One end of the cleaning shaft is external to the dedusting interface of limeslaker, and the other end passes through deduster shell from top to bottom Body is simultaneously stretched in the dedusting pond below shell of dust remover, and cleaning shaft stretches into the one end in dedusting pond and is provided with pipeline under liquid Shower nozzle, the wherein end of liquid down tube channel showerhead are network structure or loose structure；Preferably, cleaning shaft is from shell of dust remover Middle part pass through (i.e. along central shaft).

It is preferred that, the deduster also includes：Positioned at the overflow water seal water pond of dedusting pond side, and dedusting pond with overflow Between flowing water water shutoff pond, in the water level regulation hole issued by the lower end of shell of dust remover side；It is further preferred that in water level regulation Card is provided with the outside of shell of dust remover by hole and puts groove and water level control apparatus, the water level control apparatus include water level regulation plate, spiral shell Swing arm, regulating valve, water level regulation board are placed on the card and put in groove, and one end of screw rod is connected with water level regulation plate, screw rod The other end be connected with regulating valve, wherein the vertical width of water level regulation plate slightly larger than water level regulation hole vertical width.

It is preferred that, the deduster also includes：The cover plate being arranged on above overflow water seal water pond, one end and the deduster shell of cover plate Body connects, and in other end insertion overflow water seal water pond, it is preferred that a through hole is provided with cover plate, screw rod passes through the through hole. Screw rod is moved up and down along the through hole, therefore drive water level regulation plate to move up and down.

It is preferred that, overflow water seal water pond top is provided with overflow pipe, for adjusting the water level in overflow water seal water pond；More preferably , overflow pipe is provided with overflow pipe valve.

It is preferred that, be provided with filling pipe on dedusting pond, for in dedusting pond supplement water；Preferably, moisturizing water Pipe is provided with moisturizing pipe valve.

It is preferred that, dedusting basin bottom is funnel-form or " V " type or is rendered as inversed-cone shape；Dedusting basin bottom is provided with dirt Sewage sludge tapping equipment；Preferably, hydraulic gage is additionally provided with sewage sludge tapping equipment.

It is preferred that, support is provided with above the dedusting pond in shell of dust remover, be provided with as bubble below support Puncture first group of woven wire (preferably V-type screen pack or V-type woven wire) a little and second group is provided with above support Woven wire (preferably reverse V-shaped woven wire)；Preferably, first group of woven wire and/or second group of woven wire interlock Oblique arrangement, point of intersection are provided with sealing card.

It is preferred that, sprinkler head is provided with above second group of woven wire, for spraying dedusting on second group of woven wire Water or dedusting liquid；Preferably, dash demisting plate is provided with above sprinkler head, on shell of dust remover above dash demisting plate It is provided with net air outlet.

It is preferred that, deduster also includes control system, and hydraulic gage, overflow pipe valve and moisturizing pipe valve are connected with control system, are controlled System control hydraulic gage processed, overflow pipe valve and moisturizing pipe valve.

According to second embodiment of the present utility model, there is provided a kind of quicklime slaking, dedusting and sewage water treatment method Or the method for carrying out quicklime slaking, dedusting and sewage disposal using above-mentioned quicklime slaking, dedusting and sewage-treatment plant, should Method includes：

1) quicklime slaking：

When using two-stage burnt lime digester, quick lime is put in the charging aperture of two-stage burnt lime digester, Jing It is transported in the first digestion section casing by sealing transportation section casing, by positioned at the top of the first digestion section casing or sidepiece Water injector to first digestion section casing in move quick lime material water spray so that quick lime shaft stirring action It is lower to move while occur to mix and digest, afterwards in the second digestion section casing again under the stirring action of shaft Move while occurring further to mix and digest, postdigestive quick lime is arranged via the discharging opening of burnt lime digester bottom Go out；Or

When using three-level burnt lime digester, quick lime is put in the charging aperture of three-level burnt lime digester, Jing It is transported in the first digestion section casing by sealing transportation section casing, by positioned at the top of the first digestion section casing or sidepiece Water injector to first digestion section casing in move quick lime material water spray so that quick lime shaft stirring action It is lower to move while occur to mix and digest, afterwards in the second digestion section casing again under the stirring action of shaft Move while occur further mix and digest, afterwards into the 3rd digestion section casing in again shaft stirring make Moved while occurring further to mix and digest, discharging of the postdigestive quick lime via burnt lime digester bottom with lower Mouth is discharged；

2) dedusting of dusty gas：Dusty gas in the sealing dust excluding hood of burnt lime digester is from sealing dust excluding hood The external tapping that gathers dust is output to the cleaning shaft of wet dust collector, and dusty gas is sprayed by the liquid down tube channel showerhead of cleaning shaft Enter in the water in dedusting pond, dedusting is carried out by contacting with water, the net air that the gas after dedusting is arranged from shell of dust remover Outlet is discharged；Dedusting sewage in the dedusting pond of wet dust collector bottom is discharged in cesspool；

3) Treatment of Sludge：The sewage in cesspool is stirred beneficial to the agitating device arranged on cesspool, sewage Upper strata in pond is sewage；And the sludge for depositing cesspool bottom is discharged in sludge dewatering equipment via mud discharging passage and carries out Dehydration, forms sludge silt and sewage, and the sewage is transported in cesspool；

4) sewage disposal：Upper strata sewage in cesspool is transported to digester by the first sewage pump and is used as digestion water And/or the roller humidifying machine below the dust cabin being transported in quicklime slaking operation by the second sewage pump is carried out to dust Humidification.

It is preferred that, in step 3) in obtain sludge silt be transported to the ash silo or life being delivered in quicklime slaking operation again In limeslaker, realize recycling.

In this application, " optional " expression is with or without.

In this application, two-stage digester is also referred to as upper and lower two-stage digester, three-level digester also referred to as upper and lower three Level digester.

The length of two-stage or three-level digester in the application is usually 3-30m, preferred 4-20m, more preferably 5-10m.This Two-stage or three-level digester in application can be supported on support or be arranged on pedestal.

Wet dust collector described herein can be mounted or positioned on pedestal, or is supported on support bracket.One As, the housing sidepiece of wet dust collector is presented the housing side cross sectional of cylindrical shape or oval cylinder, i.e. wet dust collector for circle Shape or ellipse.The housing side cross sectional that four prism type, i.e. wet dust collector can be also rendered as is rectangle or square.Water Body height (height of i.e. whole housing) the usually 1.2m-10m of bath deduster, more preferably preferred 1.5-7m, 2.0-5m.

The utility model provides a kind of quicklime slaking dusting waste water treatment method, to solve quicklime slaking dedusting sewage The problems such as pollution for causing and waste.

Sintering plant typically sets dust cabin, and for collecting the dedusting dust of full factory, dust participates in dispensing as iron-bearing material.By In dust be in powdery, fine size, easily producing airborne dust with addition of process, so dust is with addition of generally going through dust wetting before Machine carries out the humidification that adds water, to reduce airborne dust.And dust cabin and quick lime storehouse are generally in same workshop, the utility model is exactly profit Dust is humidified with quicklime slaking dedusting sewage, solve the process problem of quicklime slaking dedusting sewage.

Treatment method is comprised the following steps：

(1) sewage is concentrated：The ash-laden gas that digester 1 is produced carries out dedusting into wet dust collector, through the dry of dedusting Net gas Jing chimneys enter air, and dedusting sewage enters cesspool.

(2) sewage disposal：Sewage in cesspool has two places to go, and a part is pumped into digester by the first sewage Used as digestion water, remainder is pumped into the roller humidifying machine below dust cabin by the second sewage to carry out adding to dust It is wet.

(3) sewage stirring：Due to containing part Ca (OH) in sewage₂, easily precipitate in cesspool, gradually form dirt Mud, not only bad for conveying, also needs periodic cleaning, and the purposes that the sludge for clearing is not adapted to, easily cause waste and Pollution, so agitating device is set in cesspool, not only solves Ca (OH) by stirring₂The sedimentation problem in cesspool, also protects In card sewage, each component is uniform.

(4) Treatment of Sludge：Cesspool bottom is provided with mud discharging passage, and the sludge of cesspool bottom deposit is from mud discharging Passage enters Stacked sludge dewatering machine, and Stacked sludge dewatering machine carries out screw extrusion dehydration to sludge, the waste water for squeezing out Import in cesspool again, the sludge after dehydration is crushed, be then delivered to ash silo or burnt lime digester again, realize circulation Utilize.

According to second embodiment that the utility model is provided, there is provided a kind of using method of wet dust collector or use The method that above-mentioned wet dust collector carries out dedusting, the method are comprised the following steps：

(1) by filling pipe to retaining in dedusting pond, water level regulation plate is adjusted, water level reaches predetermined in making dedusting pond Value, closes moisturizing pipe valve；

(2) dusty gas (dust flue gas for for example coming from the dedusting interface of burnt lime digester) by cleaning shaft from upper And under enter from the middle part of shell of dust remover in deduster, by smoke property and the uninterrupted of flue gas, adjust water level control apparatus, Certain position (such as 0.2-0.8m) in cleaning shaft insertion dedusting pond, cleaning shaft is made to insert under water and be provided with net The liquid down tube channel showerhead of shape structure or loose structure；

(3) dusty gas flows through cleaning shaft and sprays (at a relatively high speed) at liquid down tube channel showerhead (to have certain speed) Go out, water layer is produced and is entered after percussion in water, the direction of motion of gas changes, and grit is then continued due to the effect of inertia Move by original direction, stay in water after wherein most grit and water adhesion, smoke-shock water body Jing liquid down tube channel showerheads Network structure cuts into minute bubbles, increased the contact area of flue gas and water, strengthens seizure of the water in dust removal to dust, realizes One-level impulse type water bath dedusting；

(4) in water bath dust-removing, flue gas, most of dust is removed, and remainder particle dust is golden through first group Category silk screen forms the second moisture film that first moisture film and second group of woven wire are formed, and twice moisture film is to the fine powder in flue gas Dirt is caught, and realizes second level filtering type water film dedusting, and purified gas is arranged from exit Jing after the process of dash demisting plate Go out；

(5) dedusting pond has turned into sewage through prolonged dedusting, 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 carries out moisturizing from filling pipe.

In the utility model, liquid down tube channel showerhead extends into certain position in housing bottom dedusting pond, insertion depth It is relevant with dust characteristic, generally 20-80cm.Soot density is big, particle is thick, then insertion depth is such as 20～50cm；Dust Density is little, particle is thin, then insertion depth is 30～80cm, and the pipeline shower nozzle purpose is that flue gas is divided into multiple gas columns to enter water In, increase contact of the flue gas with water, improve efficiency of dust collection.

In the utility model, can be too high so that water level is raised in dedusting pond when dusty gas or flue gas is passed through Water can be arranged on the overflow pond on the outside of adjustable plate from water level regulation hole flow direction, can so make the water level holding conjunction in dedusting pond Suitable height, can not only make the smooth suction of flue gas, and also assures that do not have water depth to shower nozzle.

In the utility model, support is being provided with above dedusting pond in housing, first group is being provided with below support Woven wire, the woven wire are one group of V-type screen pack, for the flue gas bubble from dedusting pond out is punctured, and are disperseed Open air-flow.Reverse V-shaped second group of woven wire is provided with above support.Second group of woven wire alternating inclinations arrangement, point of intersection Sealing card is provided with, side is provided with sprinkler head on a wire mesh, for dedusting liquid is sprayed on woven wire, on wire netting The moisture film for flowing downward is formed, then the bubble flowed to below support punctures net and forms second moisture film, fully catches dust.

In the utility model, this deduster arranges water level control apparatus, by adjusting the height of water level regulation plate come real Existing water level regulation function, when deduster air exhauster starts, in deduster, negative pressure is uprushed, and water level is raised suddenly, but water energy is from water level Adjustment hole is discharged to overflow water seal water pond, it is ensured that liquid down tube channel showerhead does not have water depth stably within limits, so as to protect wind Machine avoids resistance from uprushing and motor damage.When deduster normally runs, water level control apparatus governor valve control adjustable plate can be passed through Move up and down, water level is adjusted, shower nozzle capable of on-line does not have water depth, it is ensured that the stable and Effec-tive Function of equipment.

Compared with prior art, the utility model has following Advantageous Effects：

1st, the dedusting sewage that wet dust collector can be made full use of to discharge, realizes that effluent cycle is utilized, it is to avoid wastewater disposition is made Into secondary pollution and the wasting of resources.

2nd, sintering plant quicklime slaking system and dust wetting system belong to same workshop, and two systems distance is near so that Sewage transport distance is short, can not only reduce cost of investment, moreover it is possible to the line clogging for avoiding the long distance delivery of sewage from easily causing Problem.

3rd, in raw materials for sintering, granularity of dust is generally 0～1mm, and fine fraction dust causes raw materials for sintering packed layer with membership The decline of gas permeability and the decline of productivity of sinter.Due to containing being in partly colloidal Ca (OH) 2, being conducive to dust in dedusting sewage Balling-up, in the continuous rotation process of dust-moisturized machine, serves prefabricated grain effect, is conducive to improving the gas permeability of sintering feed.

4th, the sludge of dedusting sewage is also processed in time, and realize recycle, it is to avoid the wasting of resources, and saved into This.

5th, using the multistage digester of designed, designed, the various problems that existing quick lime single-stage digester brings are solved, Such as overcome that digestion time is short, digestibility is low, destroy the granulation bead of balling-up, affect bed permeability, do not give full play to The shortcomings of digestion of quick lime etc..

6th, using the multistage digester of designed, designed, reduce the pollution to environment so that digestion region dust concentration is remote Less than national emissions concentration standard, and there is provided a kind of repair method of multistage digester.

7th, compared with single-stage digestion, digestibility increases by 1 to 2 times, and digestible degree is high, the digestion process parameter of science, maximum Change makes quicklime slaking complete.

8th, the part sealed in the casing of transportation section is provided with continuous conveyor screw blade, seal the inwall of transportation section casing with Helixseal conveying is formed between continuous conveyor screw blade, only allows quick lime to push ahead into digestion section casing, can Effectively prevent steam anti-channeling to feeding mouth from causing hardened or affecting belt conveyer scale weighing precision.

9th, using Double shaft stirring form, with stirring, multiple action and the effects such as caking and self-cleaning are crushed；Improve raw stone Grey stirring frequency, is made quick lime be well mixed with water, reacts abundant；Stirrer paddle adopts manganese steel plate weld carbide bit, Increase the service life.

10th, as a result of multistage digestion, the also Automated condtrol of the water yield so that digestion effect very well, the powder of generation Dirt also corresponding a large amount of reductions, substantially improve the external environment condition in digestion place, and digestion region dust concentration is discharged far below country Thing concentration standard, has administered the problem of environmental pollution of existing digestion zone.

11st, the maintenance blind spot of below section is digested for multistage digester one-level, there is provided a kind of effective expansion maintenance Method, solves a multistage digester maintenance difficult problem.

Again, deduster of the present utility model is produced the advantage that：

12nd, the utility model is by adjusting water level regulation equipment, it is ensured that suitable immersion depth (such as 50cm- of fume pipe 80cm), by the shower nozzle of network structure or loose structure and the synergy of water level regulation equipment so that the ripple of the pressure of flue gas It is dynamic to be buffered.The size of produced bubble is less and uniform.Realize being fully contacted for flue gas containing dust and water, dust removing effects It is good.

13rd, impulse type water bath dedusting technology and filtering type moisture film dedusting technology advantage have been gathered, have targetedly captured big Particle and fine dust, efficiency of dust collection are up to 99.9%.

14th, water level in deduster can be adjusted when equipment runs, reaches higher purification efficiency, while ensureing purifier Running resistance is relatively low, and equipment energy consumption is low.

15th, using overflow water seal, the fluctuation range of liquid level in purifier cylinder is controlled well, it is ensured that purifier With stable purification efficiency, and protective effect is served to blower fan.

16th, dedusting sewage can be recycled after sewage disposal again, reduced sewage discharge capacity, prevented secondary dirt Dye.

The utility model efficiently solves the problems, such as that quicklime slaking dust removing effects are poor, and solves existing quick lime and disappear Change the problem of a large amount of dust flue gas and sewage environmental pollution.

Description of the drawings

Fig. 1 is the utility model sewage treatment process schematic diagram.

Structural representations of the Fig. 2 for the utility model (upper and lower) two-stage digester.

Fig. 2 a are the sheet of the hot water outlet of the externally connected heat exchanger X4 of initial water supply line L0 of wherein water injector 5 The structural representation of utility model (upper and lower) two-stage digester.

Fig. 3 is the overlooking the structure diagram of digester shown in Fig. 2 of the present utility model.

Fig. 4 is the left view schematic diagram of digester shown in Fig. 2 of the present utility model.

Structural representations of the Fig. 5 for the utility model (upper and lower) three-level digester.

Fig. 6 is the structural representation of the wet dust collector of quicklime slaking of the present utility model and dust pelletizing system.

Fig. 7 is the structural representation that the utility model wet dust collector is provided with control system.

Reference：

In Fig. 1,1- burnt lime digesters；Q1- wet dust collectors；T1- cesspools；The first sewage pumps of P1-；P2- second is dirty Water pump；T3- roller humidifying machines；S1- agitating devices；T2- Stacked sludge dewatering machines.

In Fig. 2-5,1：Burnt lime digester；2- charging apertures；201- self seal valves；3- seals transportation section casing；301- Conveyor screw blade；4- first digests section casing；Bed in the first beds of 4a- or the first digestion section casing；401a and 401b- First shaft；402- stirring vanes；5- water injectors；501- automates flowmeter water valve；The scalable sprinkler heads of 502-；6- is close Envelope dust excluding hood；601- gathers dust external tapping；7- first (on) at digestion casing blanking and disclose material mouth；7a- second (in) digestion casing At blanking and disclose material mouth；8- second digests section casing；Bed in the second beds of 8a- or the second digestion section casing；801a and The second shafts of 801b-；9- discharging openings；10- digests casing apparatus for examination and repair；10a- digests casing apparatus for examination and repair door；10b digests case Device gate articulating device is repaiied in health check-up；11- first driving means；11a- first shaft couplings；11b- first gear casees；11c- One bearing block；The second driving means of 12-；12a- second shaft couplings；12b- second gear casees；12c- second bearing seats；13- the 3rd Driving means；The 3rd shaft couplings of 13a-；The 3rd gear-boxes of 13b-；13c- 3rd bearing seats；14- the 3rd digests section casing；14a- Bed in 3rd bed or the 3rd digestion section casing；The 3rd shaft (to) of 1401a and 1401b-；The initial water supply lines of L0-.

In Fig. 6 and Fig. 7, Q1：Deduster；Q2：Dedusting pond；Q201：Filling pipe；Q202：Moisturizing pipe valve；Q203：Sewage Device for discharging sludge；Q204：Hydraulic gage；Q3：Shell of dust remover；Q301：Water level regulation hole；Q302：Card puts groove；Q303：Headroom Gas is exported；Q4：Cleaning shaft；Q 401：Liquid down tube channel showerhead；Q5：Overflow water seal water pond；Q501：Cover plate；Q502：Overflow pipe； Q503：Overflow pipe valve；Q6：Water level control apparatus；Q601：Water level regulation plate；Q602：Screw rod；Q603：Regulating valve；Q7： Frame；Q701：First group of woven wire；Q702：Second group of woven wire；Q703：Sealing card；Q8：Sprinkler head；Q9：Dash demisting Plate；Q10：Control system.

Specific embodiment

According to first embodiment of the present utility model, there is provided quicklime slaking, dedusting and sewage-treatment plant, it wraps Include：Burnt lime digester 1, wet dust collector Q1 and sewage-treatment plant, wherein sewage-treatment plant include cesspool T1, arrange Agitating device S1, sewage pump P1 on cesspool, P2 and sludge dewatering equipment T2, and wherein burnt lime digester 1 is equipped with having Gather dust the sealing dust excluding hood 6 of external tapping 601, and wet dust collector Q1 is external with gathering dust for digester 1 by a cleaning shaft Q4 Mouth 601 is connected, and the bottom of wet dust collector Q1 has the dedusting sewage pipe for being communicated to above-mentioned cesspool.

It is preferred that, burnt lime digester is two-stage burnt lime digester 1, and it includes：Charging aperture 2, front end are connected with charging aperture 2 Logical sealing transportation section casing 3, the first digestion section casing 4 being connected with the rear end of sealing transportation section casing 3, is disappeared positioned at first Change the top of section casing 4 or the water injector 5 of sidepiece；Sealing dust excluding hood 6 at the top of the first digestion section casing 4, positioned at the In one digestion section casing 4 and away from the upper digestion casing blanking of that one end of charging aperture 2 and material mouth 7 is disclosed, positioned at the first digestion The second digestion section casing 8 below section casing 4, in the second digestion section casing 8 and near the discharging of that one end of charging aperture 2 Mouth 9；Wherein：The first shaft 401a and 401b with stirring vane 402 that section casing 4 is built with a pair is digested first, Both this pair first shaft 401a and 401b are by first driving means 11 are driven and both direction of rotation phase Instead；In addition, digesting the second shaft 801a, 801b with stirring vane that section casing 8 is built with a pair second, this is a pair Both the second shaft 801a and 801b it is driven by the second driving means 12 and both direction of rotation is contrary；With, Sealing dust excluding hood 6 has the external tapping 601 that gathers dust.

It is preferred that, burnt lime digester is three-level burnt lime digester 1, and it includes：Charging aperture 2, front end are connected with charging aperture 2 Logical sealing transportation section casing 3, the first digestion section casing 4 being connected with the rear end of sealing transportation section casing 3, is disappeared positioned at first Change the top of section casing 4 or the water injector 5 of sidepiece；Sealing dust excluding hood 6 at the top of the first digestion section casing 4, positioned at the In one digestion section casing 4 and away from the upper digestion casing blanking of that one end of charging aperture 2 and material mouth 7 is disclosed, positioned at the first digestion The second digestion section casing 8 below section casing 4, positioned at the second of that one end of 8 interior and close charging aperture 2 of the second digestion section casing Material mouth (i.e. discharging opening) 7a is digested at casing blanking and discloses, the 3rd digestion section casing 14 below the second digestion section casing 8, The discharging opening 9 of that one end in the 3rd digestion section casing 14 and away from charging aperture 2；Wherein：In the first digestion section casing 4 Equipped with a pair of the first shaft 401a and 401b with stirring vane 402, this pair first shaft 401a and 401b Both by first driving means 11 it is is driven and both direction of rotation it is contrary；Section casing 8 is digested built with one second To the second shaft 801a and 801b with stirring vane, both this pair of the second shaft 801a and 801b is by the Two driving means 12 are driven and both direction of rotation is contrary；In the 3rd digestion section casing 14 built with a pair with stirring The 3rd shaft 1401a and 1401b of blade is mixed, both this pair the 3rd shaft 1401a and 1401b are driven by the 3rd Device 13 is driven and both direction of rotation is contrary；With sealing dust excluding hood 6 has the external tapping 601 that gathers dust.

It is further preferred that for two-stage digester 1, a 801a in the middle of the second shaft 801a and 801b is positioned at the first stirring The underface of a 401a in the middle of axle 401a and 401b, and the direction of rotation of both their 401a and 801a is contrary.

It is further preferred that for three-level digester 1, the second shaft 801a, in the middle of 801b a 801a are positioned at the first stirring The underface of a 401a in the middle of axle 401a and 401b, and the direction of rotation of both their 401a and 801a is conversely, with A 801as of the 1401a in the middle of three shaft 1401a and 1401b in the middle of the second shaft 801a and 801b is just Lower section, and the direction of rotation of both their 401a and 801a is contrary.

It is preferred that, the input of water injector 5 is external with initial water supply line L0, and output end is by automating flowmeter water valve 501 are connected with the multiple telescopic sprinkler head 502 on the top positioned at 4 inner space of the first digestion section casing；Preferably, certainly Dynamicization flowmeter water valve 501 is electrically connected to carry out the water yield Automated condtrol and have 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.

In addition, the hot water outlet of the initial water supply line L0 of water injector 5 externally connected heat exchanger X4.The heat exchanger There is X4 cooling water inlet X5 and hot water outlet and the hot gas import X6 of heat to export with the cooling gas after heat exchange.Such as Fig. 2 a Shown in.

It is preferred that, above the first digestion section casing 4, the height of set sealing dust excluding hood 6 is defeated along the material of the casing 4 Direction is sent gradually to increase, the external tapping 601 that gathers dust is located at the end of dust excluding hood 6, by gather dust external tapping 601 and the extraneous dedusting The pipeline of device or dust pelletizing system is connected.

It is preferred that, digestion casing maintenance is additionally provided with the casing 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 casing apparatus for examination and repair door 10a and one or more digestion casing inspections Repair device gate activity even mechanism 10b；Preferably, one or more digestion casing apparatus for examination and repair door moving connecting mechanism 10b quilts Installed in the bottom of the second casing or while be installed in the second casing and the respective bottom of the 3rd casing, digestion casing maintenance dress The bottom for putting a 10a is connected with digestion casing apparatus for examination and repair door moving connecting mechanism 10b, and digestion casing apparatus for examination and repair door 10a can Rotate around moving connecting mechanism 10b, the top for digesting casing apparatus for examination and repair door 10a is snapped connection with lower box top, i.e., should Digestion casing apparatus for examination and repair door 10a can be opened and be closed in top.

It is preferred that, above-described wet dust collector Q1 includes：

Dedusting pond Q2；

Shell of dust remover Q3 above the Q2 of dedusting pond；

Cleaning shaft Q4,

One end of cleaning shaft Q4 is external to the dedusting interface of limeslaker 1, and the other end passes through dedusting from top to bottom Device housing Q3 is simultaneously stretched in the dedusting pond Q2 below shell of dust remover Q3, and cleaning shaft Q4 stretches into the one end in the Q2 of dedusting pond Liquid down tube channel showerhead Q401 is provided with, the wherein end of liquid down tube channel showerhead Q401 is network structure or loose structure；Preferably It is that cleaning shaft Q4 is passed through (i.e. along central shaft) from the middle part of shell of dust remover Q3.

It is preferred that, deduster Q1 also includes：Positioned at the overflow water seal water pond Q5 of dedusting pond Q2 sides, and in water in dust removal Between pond Q2 and overflow water seal water pond Q5, in the water level regulation hole Q301 issued by the lower end of shell of dust remover Q3 sides；It is more excellent Choosing, on the outside of the shell of dust remover Q3 by the Q301 of water level regulation hole is provided with card and puts groove Q302 and water level control apparatus Q6, should Water level control apparatus Q6 includes water level regulation plate Q601, screw rod Q602, regulating valve Q603, and water level regulation plate Q601 cards are placed on institute State card to put in groove Q302, one end of screw rod Q602 is connected with water level regulation plate Q601, the other end and the regulation of screw rod Q602 Valve Q603 connects, wherein vertical width of the vertical width of water level regulation plate Q601 slightly larger than water level regulation hole Q301.

It is preferred that, deduster Q1 also includes：The cover plate Q501 being arranged on above overflow water seal water pond Q5, the one of cover plate Q501 End is connected with shell of dust remover Q3, in other end insertion overflow water seal water pond Q2, it is preferred that one is provided with cover plate Q501 and is led to Hole, screw rod Q602 pass through the through hole.

It is preferred that, overflow water seal water pond Q5 tops are provided with overflow pipe Q502, for adjusting the water level in overflow water seal water pond； It is further preferred that overflow pipe Q502 is provided with overflow pipe valve Q503.

It is preferred that, be provided with filling pipe Q201 on the Q2 of dedusting pond, for in dedusting pond supplement water；Preferably, Moisturizing water pipe Q201 is provided with moisturizing pipe valve Q202.

It is preferred that, dedusting pond Q2 bottoms are funnel-form or " V " type or are rendered as inversed-cone shape；Dedusting pond Q2 bottoms set There is sewage sludge tapping equipment Q203；Preferably, hydraulic gage Q204 is additionally provided with sewage sludge tapping equipment Q203.

It is preferred that, support Q7 is provided with above the dedusting pond Q2 in shell of dust remover Q3, be provided with below support Q7 First group of woven wire Q701 (preferably V-type screen pack or V-type woven wire) a little is punctured and on support Q7 as bubble Side is provided with second group of woven wire Q702 (preferably 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 to seal blocks Q703.

It is preferred that, sprinkler head Q8 is provided with above second group of woven wire Q702, for second group of woven wire Q702 Upper sprinkling water in dust removal or dedusting liquid；Preferably, dash demisting plate Q9 is provided with above sprinkler head Q8, in dash demisting plate Q9 Net air outlet Q303 is provided with the shell of dust remover of top.

It is preferred that, deduster Q1 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 control hydraulic gage Q204, overflow pipe valve Q503 and moisturizing pipe valve Q202.

1) quicklime slaking：

When using two-stage burnt lime digester 1, quick lime is put in the charging aperture 2 of two-stage burnt lime digester 1, Be transported in the first digestion section casing 4 via sealing transportation section casing 3, by positioned at the top of the first digestion section casing 4 or The quick lime material that the water injector 5 of sidepiece is moved into the first digestion section casing 4 is sprayed water so that quick lime is in shaft Move under stirring action while occur to mix and digest, afterwards in the second digestion section casing 8 again in shaft Move under stirring action while occurring further to mix and digest, postdigestive quick lime is via 1 bottom of burnt lime digester The discharging opening 9 in portion is discharged；Or

When using three-level burnt lime digester 1, quick lime is put in the charging aperture 2 of three-level burnt lime digester 1, Be transported in the first digestion section casing 4 via sealing transportation section casing 3, by positioned at the top of the first digestion section casing 4 or The quick lime material that the water injector 5 of sidepiece is moved into the first digestion section casing 4 is sprayed water so that quick lime is in shaft Move under stirring action while occur to mix and digest, afterwards in the second digestion section casing 8 again in shaft Move under stirring action while occur further to mix and digest, stirred in the 3rd digestion section casing 14 again afterwards Move under the stirring action for mixing axle while occurring further to mix and digest, postdigestive quick lime is via quicklime slaking The discharging opening 9 of 1 bottom of device is discharged；

The dedusting of 2 dusty gases：Burnt lime digester 1 sealing dust excluding hood 6 in dusty gas from sealing dust excluding hood 6 The external tapping 601 that gathers dust be output to the cleaning shaft Q4 of wet dust collector Q1, under liquid of the dusty gas by cleaning shaft Q4 Pipeline shower nozzle Q401 is injected in the water of dedusting pond Q2, carries out dedusting by contacting with water, and the gas after dedusting is from deduster The net air outlet Q303 arranged on housing is discharged；Dedusting sewage in the dedusting pond of wet dust collector Q1 bottoms is arranged Enter in cesspool T1；

3 Treatment of Sludge：The sewage in cesspool T1 is stirred beneficial to the agitating device S1 arranged on cesspool T 1 Mix, the upper strata in cesspool T1 is sewage W1；And the sludge for depositing cesspool T1 bottoms is discharged into dirt via mud discharging passage It is dehydrated in mud dewaterer T2, is formed sludge silt and sewage, the sewage is transported in cesspool T1；

4 sewage disposals：Upper strata sewage W1 in cesspool T1 is transported to digester 1 by the first sewage pump P1 is used as and disappears Roller humidifying machine T3 below change water and/or the dust cabin that is transported in quicklime slaking operation by the second sewage pump P2 Dust is humidified.

It is preferred that, the sludge silt for obtaining in step 3 is transported to the ash silo or life being delivered in quicklime slaking operation again In limeslaker 1, realize recycling.

Treatment method is comprised the following steps：

(1) sewage is concentrated：The ash-laden gas that digester 1 is produced carries out dedusting into wet dust collector Q1, through dedusting Clean gas Jing chimney enters air, and dedusting sewage enters cesspool T1.

(2) sewage disposal：Sewage in cesspool T1 has two places to go, and a part is transported to by the first sewage pump P1 and is disappeared Change device 1 as digestion water, remainder is transported to the roller humidifying machine T3 below dust cabin to powder by the second sewage pump P2 Dirt is humidified.

(3) sewage stirring：Due to containing part Ca (OH) in sewage₂, easily precipitate in cesspool, gradually form dirt Mud, not only bad for conveying, also needs periodic cleaning, and the purposes that the sludge for clearing is not adapted to, easily cause waste and Pollution, so agitating device S1 is set in cesspool T1, not only solves Ca (OH) by stirring₂The sedimentation problem in cesspool, In also ensureing sewage, each component is uniform.

(4) Treatment of Sludge：Cesspool T1 bottoms are provided with mud discharging passage, and the sludge of cesspool bottom deposit is arranged from sludge Put passage and enter Stacked sludge dewatering machine T2, Stacked sludge dewatering machine T2 carries out screw extrusion dehydration to sludge, squeezes out Waste water imported in cesspool again, the sludge after dehydration is crushed, and is then delivered to ash silo or burnt lime digester again, real Now recycle.

With reference to Fig. 2～Fig. 4, the slaking apparatus B of the system is two-stage digester, including upper lower box, and upper box is divided into phase First digestion section casing 4 of connection and sealing transportation section casing 3, it is parallel in the first digestion section casing 4 to be respectively arranged with two The first the shaft 401a and 401b driven by power set, two shaft 401a and 401b synchronous axial systems and direction of rotation phase Instead, the power set include first driving means 11, and first driving means 11 are connected with first gear by first shaft coupling 11a Case 11b, two shafts 401a and 401b are respectively by first bearing seat 11c and intermeshing in the first gear case 11b A pair of gears be connected, so as to realize that synchronous backward is rotated, first bearing seat 11c is located at outside casing 4, and is set using split Meter, bearing working environment are good, long service life；The part of two stirring rod 401a and 401b in the first digestion section casing 4 Some scattered stirring vanes 402 are provided with, the 402 interlaced setting (Fig. 2 of stirring vane on two shafts 401a and 401b In merely illustrate a shaft 401 and its stirring vane 402), two shafts 401a and 401b are located at sealing transportation section case Part in body 3 is provided with conveyor screw blade 301, is provided with charging aperture 2 on the top of sealing transportation section casing 3, charging aperture 2 with it is close The junction of envelope transportation section casing 3 is provided with self seal valve 201, and the discharging opening connection first for sealing transportation section casing 3 digests The head end feeding mouth of section casing 4；It is provided with digestion casing blanking in the tail end discharging opening of the first digestion section casing 4 and discloses material Mouth 7, material digest at casing blanking and disclose the head end that material mouth 7 digests section casing 8 into lower box second by upper, disappear second It is also parallel in change section casing 8 to be respectively arranged with two the second shaft 801a and 801b driven by power set, two stirrings Also conversely, the power set include the second driving means 12, second drives dress synchronous axial system and direction of rotation for axle 801a and 801b Put 12 and second gear case 12b is connected with by second shaft coupling 12a, two shafts 801a and 801b pass through second bearing respectively Seat 12c is connected with intermeshing a pair of gears in the second gear case 12b, so as to realize that synchronous backward is rotated, and the The steering of two driving means 12 is contrary with the steering of first driving means 11；Two shafts 801a and 801b are positioned at the second digestion Part in section casing 8 also is provided with some scattered stirring vanes, and the stirring vane on two shafts 801a and 801b is mutual It is crisscross arranged, the tail end of the second digestion section casing 8 is provided with discharging opening 9, digestion case is additionally provided with two-stage digester casing Body apparatus for examination and repair 10, connects mechanism 10b, digestion including digestion casing apparatus for examination and repair door 10a and the door activity of digestion casing apparatus for examination and repair Casing apparatus for examination and repair door moving connecting mechanism 10b is arranged on lower box bottom, digestion casing apparatus for examination and repair door 10a bottoms and digestion Casing apparatus for examination and repair door moving connecting mechanism 10b connects, and digestion casing apparatus for examination and repair door 10a can be around moving connecting mechanism 10b Rotate, digestion casing apparatus for examination and repair door 10a tops are snapped connection with lower box top, i.e. digestion casing apparatus for examination and repair door 10a Top can be opened and be closed, and during maintenance, open digestion casing apparatus for examination and repair door 10a and overhauled, and the apparatus for examination and repair is generally opened up Open type, greatly facilitates the maintenance of digester.Sealing dust excluding hood 6, dust excluding hood 6 are additionally provided with above the first digestion section casing 4 Height gradually increase along material conveying direction, be additionally provided with the external tapping 601 that gathers dust in the end of dust excluding hood 6, gather dust outer by this Interface 601 is connected with extraneous dust pelletizing system pipeline.Be additionally provided with water injector 5 on upper box, 5 one end of water injector with it is initial Water supply line L0 is external, and the other end is connected with some scalable sprinkler heads 502 by automating flowmeter water valve 501, automates Flowmeter water valve 501 is electrically connected with Master Control Room to carry out Automated condtrol and has cutting function, some scalable sprinklings to the water yield 502 stretch in 4 top dust excluding hood 6 of the first digestion section casing shower water are carried out to material, and some scalable sprinkler heads 502 can root Flexible adjustment, length arrangement straggly are carried out according to the length of digestion section casing so that add water evenly, the region that adds water is wider, the water yield Also obtain Automated condtrol.

The slaking apparatus have the following advantages：1st, compared with single-stage digestion, digestibility increases by 1 to 2 times, and digestible degree is high, section Digestion process parameter, maximization make quicklime slaking complete.2nd, seal the part in the casing of transportation section and be provided with continuous defeated Square auger blade, forms helixseal conveying, only permits between the inwall and continuous conveyor screw blade that seal transportation section casing Perhaps quick lime is pushed ahead into digestion section casing, can effectively prevent steam anti-channeling to feeding mouth from causing hardened or affecting belt conveyer scale Weighing precision.3rd, using Double shaft stirring form, with stirring, multiple action and the effects such as caking and self-cleaning are crushed；Improve life Lime under agitation frequency, is made quick lime be well mixed with water, reacts abundant；Stirrer paddle adopts manganese steel plate weld carbide cutter tool Head, increases the service life.4th, as a result of multistage digestion, the also Automated condtrol of the water yield so that digestion effect very well, is produced The also corresponding a large amount of reductions of raw dust, substantially improve the external environment condition in digestion place, and digestion region dust concentration is far below state Family's emissions concentration standard, has administered the problem of environmental pollution of existing digestion zone.5th, for multistage digester one-level digest section with Under maintenance blind spot, there is provided a kind of effective expansion repair method, solve a multistage digester maintenance difficult problem.

Quicklime slaking smoke characteristic：1st, strong cohesive property and hydrophily, according to test, the fracture strength of CaO is more than 600Pa, It is strong cohesive property and strongly hydrophilic dust, is easy to caking or sticks on the inwall of deduster and its pipeline；2nd, polymolecularity, The chemical reaction of quick lime and water is violent exothermic reaction, the Ca (OH) of generation₂The granularity of colloidal solid is superfine, average grain diameter For 30 μm, therefore, in digestion process, quick lime dust easily diffuses with thermal current and comes, and natural subsidence is very slow, diffusion Scope is wide, and dust catching difficulty is big；3rd, the hydraulicity, quick lime add water to digest and generate Ca (OH)₂, dispersion in atmosphere can be further Water suction and CO₂Reaction, generates CaCO₃Precipitation, works as CaCO₃Amount accumulation to a certain extent after, hard scale will be formed and hardened.It is raw Lime slaking smoke characteristic not only results in quick lime and sticks to cleaning shaft, hardened rear blocking pipeline, but also heavy corrosion The pole plate of electric cleaner, affects its normal operation.During using sack cleaner, also can because the hydraulicity cause cloth bag paste quickly it is stifled and It is forced to disable.

Digester water：Cooling device of the central cooler as sintering deposit in sintering plant, central cooler is by cooling down sintering mineral products The a large amount of hot blasts of life.With reference to Fig. 1, the utility model is carried out to cold water X5 by heat-exchange device X4 using the hot blast X6 of central cooler Hot water after heating is accessed the initial water supply line of digester, is subsequently used for quicklime slaking by heating.It is so not only fully sharp With the hot blast of central cooler, and the temperature of quicklime slaking water is also improved, improve the effect of digestion.

The dust flue gas fetched from burnt lime digester dust removal port are entered in deduster by cleaning shaft, and cleaning shaft is inserted Enter certain position in dedusting pond, the position is determined by exhaust gas volumn, cleaning shaft inserts under water and is provided with netted knot The pipeline shower nozzle of structure；Dusty gas Jing with certain speed enters cleaning shaft and is sprayed at shower nozzle at a relatively high speed, to water layer Enter after producing percussion in water, the direction of motion of gas changes, and grit is then continued by original side due to the effect of inertia To motion, stay in water after wherein most grit and water adhesion, the netted knot of the bubble Jing shower nozzles that smoke-shock water body is produced Structure cuts into minute bubbles, increased the contact area of bubble and water, strengthens seizure of the water in dust removal to dust, realizes that the first order is rushed Hit formula water bath dust-removing；In water bath dust-removing, flue gas, most of dust is removed, and remainder particle dust is through two-layer V Type net, the moisture film formed in net are caught to the fine dust in flue gas, realize second level filtering type water film dedusting, after purification Gas Jing dash demisting process after from exit discharge.

With advantages below compared with traditional wet scrubber：1st, impulse type water bath dedusting technology and filtering type have been gathered Water film dedusting technological merit, targetedly captures bulky grain and fine dust, and efficiency of dust collection is up to 99.9%.2nd, can be in equipment Water level in deduster is adjusted during operation, higher purification efficiency is reached, while ensure that purifier running resistance is relatively low, equipment energy Consumption is low.3rd, using overflow water seal, the fluctuation range of liquid level in purifier cylinder is controlled well, it is ensured that purifier has Stable purification efficiency, and protective effect is served to blower fan.4th, dedusting sewage can be recycled after sewage disposal again, Sewage discharge capacity is reduced, secondary pollution is prevented.5th, the utility model simple structure, operation, it is easy to maintenance.

The utility model can solve that existing digester digestive efficiency is low, dust collector efficiency is low completely, cleaning shaft it is stifled A series of problems, such as plug, the vibration of blower fan, sewage sludge are recycled, it is ensured that dust pelletizing system can be run steadily in the long term.Raw stone Grey digestibility is very high, and dust, the collecting effect of steam can also reach more than 99%, and after purification, the concentration of emission of exhaust gas dust is far little In the discharge standard of national regulation, the purpose of energy-conserving and environment-protective is also realized.

The dust collection method of wet dust collector, the method are comprised the following steps：

(1) by filling pipe Q201 to retaining in 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 for such as fetching from burnt lime digester dust removal port) by cleaning shaft Q4 from upper and Under from the middle part of shell of dust remover Q3 in deduster Q1, by smoke property and the uninterrupted of flue gas, adjust water level regulation dress Q6 is put, certain position in cleaning shaft Q4 insertion dedusting pond Q2, cleaning shaft Q4 insertion under water one is provided with netted The liquid down tube channel showerhead Q401 of structure；

(3) dusty gas with certain speed flows through cleaning shaft Q4 at the liquid down tube channel showerhead Q401 at a relatively high speed Spray, water layer produced and is entered after percussion in water, the direction of motion of gas changes, and grit due to inertia effect then after It is continuous to press original direction motion, stay in water after wherein most grit and water adhesion, smoke-shock water body Jing liquid down tube channel showerheads The network structure of Q401 cuts into minute bubbles, increased the contact area of flue gas and water, strengthens seizure of the water in dust removal to dust, Realize first order impulse type water bath dedusting；

(4) in water bath dust-removing, flue gas, most of dust is removed, and remainder particle dust is golden through first group Category silk screen Q701 forms the second moisture film that first moisture film and second group of woven wire Q702 are formed, and twice moisture film is in flue gas Fine dust caught, realize second level filtering type water film dedusting, purified gas is Jing after dash demisting plate Q9 process Discharge from exit.

(5) dedusting pond Q2 has turned into sewage through prolonged dedusting, by the sewage from funnel-form or " V " type dedusting The sewage sludge tapping equipment Q203 of pond Q2 bottoms is discharged, and carries out moisturizing from filling pipe Q201.

Claims

1. quicklime slaking, dedusting and sewage sludge processing meanss, it includes：Burnt lime digester (1), wet dust collector (Q1) And sewage-treatment plant, wherein sewage-treatment plant includes cesspool (T1), the agitating device (S1) being arranged on cesspool, dirty Water pump (P1, P2) and sludge dewatering equipment (T2), and wherein burnt lime digester (1) is equipped with the close of external tapping (601) that gather dust Envelope dust excluding hood (6), gather dust external tapping (601) phase of the wet dust collector (Q1) by a cleaning shaft (Q4) and digester (1) Connection, the bottom of wet dust collector (Q1) have the dedusting sewage pipe for being communicated to above-mentioned cesspool, wherein：Burnt lime digester Length is 3-30m.

2. device according to claim 1, wherein：The length of burnt lime digester is 4-20m.

3. device according to claim 1, wherein burnt lime digester (1) is two-stage burnt lime digester, and it includes：Enter Material mouth (2), sealing transportation section casing (3) that front end is connected with charging aperture (2), the rear end phase with sealing transportation section casing (3) First digestion section casing (4) of connection, positioned at the top of the first digestion section casing (4) or the water injector (5) of sidepiece；Positioned at Sealing dust excluding hood (6) at the top of one digestion section casing (4), that in the first digestion section casing (4) and away from charging aperture (2) At the upper digestion casing blanking of one end and disclose material mouth (7), the second digestion section casing below the first digestion section casing (4) (8), in the second digestion section casing (8) and near the discharging opening (9) of that one end of charging aperture (2)；Wherein：In the first digestion Section casing (4) first is stirred for this pair built with a pair of the first shaft (401a, 401b) with stirring vane (402) Mix axle (401a, 401b) both by first driving means (11) it is driven and both direction of rotation it is contrary；In addition, Two digestion section casing (8) second are stirred for this pair built with a pair of the second shaft (801a, 801b) with stirring vane Mix axle (801a, 801b) both by the second driving means (12) it is driven and both direction of rotation it is contrary；With sealing is removed Dust hood (6) is with the external tapping that gathers dust (601).

4. device according to claim 1, wherein burnt lime digester (1) is three-level burnt lime digester, and it includes：Enter Material mouth (2), sealing transportation section casing (3) that front end is connected with charging aperture (2), the rear end phase with sealing transportation section casing (3) First digestion section casing (4) of connection, positioned at the top of the first digestion section casing (4) or the water injector (5) of sidepiece；Positioned at Sealing dust excluding hood (6) at the top of one digestion section casing (4), that in the first digestion section casing (4) and away from charging aperture (2) At the upper digestion casing blanking of one end and disclose material mouth (7), the second digestion section casing below the first digestion section casing (4) (8), second positioned at that one end of the interior and close charging aperture (2) of the second digestion section casing (8) digests at casing blanking and discloses material Mouth (7a), the 3rd digestion section casing (14) below the second digestion section casing (8), in the 3rd digestion section casing (14) And the discharging opening (9) of that one end away from charging aperture (2)；Wherein：In the first digestion section casing (4) built with a pair with stirring First shaft (401a, 401b) of blade (402) is mixed, both this pair first shafts (401a, 401b) pass through first Driving means (11) are driven and both direction of rotation is contrary；Have built with a pair in the second digestion section casing (8) Both second shaft (801a, 801b) of stirring vane, this pair second shaft (801a, 801b) are driven by second Device (12) is driven and both direction of rotation is contrary；In the 3rd digestion section casing (14) built with a pair with stirring Both 3rd shaft (1401a, 1401b) of blade, this pair the 3rd shaft (1401a, 1401b) are driven by the 3rd Device (13) is driven and both direction of rotation is contrary；With sealing dust excluding hood (6) is with the external tapping that gathers dust (601).

5. the device according to claim 3 or 4, wherein, (801a) position in the middle of the second shaft (801a, 801b) The underface of one (401a) in the middle of the first shaft (401a, 401b), and their (401a) and (801a) both Direction of rotation conversely, or

One (801a) in the middle of second shaft (801a, 801b) one in the middle of the first shaft (401a, 401b) (401a) underface, and their (401a) and (801a) both direction of rotation conversely, with the 3rd shaft (1401a, The underface of (801a) of (1401a) in the middle of 1401b) in the middle of the second shaft (801a, 801b), and Their (401a) and (801a) both direction of rotation are contrary.

6. the device according to claim 3 or 4, wherein, the input of water injector (5) is with initial water supply line (L0) outward Connect, output end is multiple with the top positioned at the first digestion section casing (4) inner space by automating flowmeter water valve (501) Telescopic sprinkler head (502) connection；And/or

Above the first digestion section casing (4), the height of set sealing dust excluding hood (6) is along the material conveying side of the casing (4) To gradually increasing, the external tapping that gathers dust (601) positioned at the end of sealing dust excluding hood (6), by the external tapping that gathers dust (601) with it is extraneous Deduster or the pipeline of dust pelletizing system be connected.

7. device according to claim 5, wherein, the input of water injector (5) is external with initial water supply line (L0), Output end can with the multiple of top positioned at the first digestion section casing (4) inner space by automating flowmeter water valve (501) Flexible sprinkler head (502) connection；And/or

8. device according to claim 6, wherein, it is right that automation flowmeter water valve (501) is electrically connected to Master Control Room The water yield carries out Automated condtrol and has cutting function；Multiple scalable sprinkler heads (502) are entered according to the length of digestion section casing The flexible adjustment of row, length arrangement straggly.

9. device according to claim 7, wherein, it is right that automation flowmeter water valve (501) is electrically connected to Master Control Room The water yield carries out Automated condtrol and has cutting function；Multiple scalable sprinkler heads 502 are carried out according to the length of digestion section casing Flexible adjustment, length arrangement straggly.

10. device according to claim 3, wherein, digestion case is additionally provided with the casing of two-stage burnt lime digester (1) Body apparatus for examination and repair (10), the apparatus for examination and repair (10) include one or more digestion casing apparatus for examination and repair door (10a) and one or many Individual digestion casing apparatus for examination and repair door activity connects mechanism (10b).

11. devices according to claim 4, wherein, digestion case is additionally provided with the casing of three-level burnt lime digester (1) Body apparatus for examination and repair (10), the apparatus for examination and repair (10) include one or more digestion casing apparatus for examination and repair door (10a) and one or many Individual digestion casing apparatus for examination and repair door activity connects mechanism (10b).

12. devices according to claim 5, wherein, in two-stage burnt lime digester (1) or three-level burnt lime digester (1) digestion casing apparatus for examination and repair (10) is additionally provided with casing, the apparatus for examination and repair (10) includes one or more digestion casing inspections Repair device gate (10a) and one or more digestion casing apparatus for examination and repair door activities connect mechanism (10b).

13. devices according to any one of claim 10-12, wherein, one or more digestion casing apparatus for examination and repair Door moving connecting mechanism 10b is installed in the bottom of the second casing or while is installed in the second casing and the 3rd casing is respective Bottom, the bottom for digesting casing apparatus for examination and repair door (10a) are connected with digestion casing apparatus for examination and repair door moving connecting mechanism (10b), Digestion casing apparatus for examination and repair door (10a) can be rotated around the moving connecting mechanism (10b), digest casing apparatus for examination and repair door (10a) Top is snapped connection with lower box top, i.e., digestion casing apparatus for examination and repair door (10a) top can be opened and be closed.

14. devices according to any one of claim 1-4 or 7-12, wherein wet dust collector (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 dedusting interface of limeslaker (1), and the other end is from top to bottom Through shell of dust remover (Q3) and stretch in the dedusting pond (Q2) below shell of dust remover (Q3), cleaning shaft (Q4) is stretched into and removed One end in dirt pond (Q2) is provided with liquid down tube channel showerhead (Q401), and the wherein end of liquid down tube channel showerhead (Q401) is netted Structure or loose structure.

15. devices according to claim 5, wherein wet dust collector (Q1) include：

Dedusting pond (Q2)；

Shell of dust remover (Q3) above dedusting pond (Q2)；

Cleaning shaft (Q4),

16. devices according to claim 6, wherein wet dust collector (Q1) include：

Dedusting pond (Q2)；

Shell of dust remover (Q3) above dedusting pond (Q2)；

Cleaning shaft (Q4),

17. devices according to claim 14, wherein, cleaning shaft (Q4) is passed through from the middle part of shell of dust remover (Q3).

18. devices according to claim 15 or 16, wherein, cleaning shaft (Q4) is worn from the middle part of shell of dust remover (Q3) Cross.

19. devices according to claim 14, it is characterised in that：The deduster (Q1) also includes：Positioned at dedusting pond (Q2) the overflow water seal water pond (Q5) of side, and between dedusting pond (Q2) and overflow water seal water pond (Q5), in deduster The water level regulation hole (Q301) issued by the lower end of housing (Q3) side.

20. devices according to any one of claim 15-17, it is characterised in that：The deduster (Q1) also includes：It is located at The overflow water seal water pond (Q5) of dedusting pond (Q2) side, and between dedusting pond (Q2) and overflow water seal water pond (Q5), In the water level regulation hole (Q301) issued by the lower end of shell of dust remover (Q3) side.

21. devices according to claim 18, it is characterised in that：The deduster (Q1) also includes：Positioned at dedusting pond (Q2) the overflow water seal water pond (Q5) of side, and between dedusting pond (Q2) and overflow water seal water pond (Q5), in deduster The water level regulation hole (Q301) issued by the lower end of housing (Q3) side.

22. devices according to claim 19 or 21, it is characterised in that：(Q301) the other deduster shell in water level regulation hole Card is provided with the outside of body (Q3) and puts groove (Q302) and water level control apparatus (Q6), the water level control apparatus (Q6) are including water level regulation plate (Q601), screw rod (Q602), regulating valve (Q603), water level regulation plate (Q601) card are placed on the card and put in groove (Q302), spiral shell One end of swing arm (Q602) is connected with water level regulation plate (Q601), and the other end of screw rod (Q602) is with regulating valve (Q603) even Connect, wherein vertical width of the vertical width of water level regulation plate (Q601) slightly larger than water level regulation hole (Q301).

23. devices according to claim 20, it is characterised in that：(Q301) the other shell of dust remover in water level regulation hole (Q3) card is provided with the outside of and puts groove (Q302) and water level control apparatus (Q6), the water level control apparatus (Q6) are including water level regulation plate (Q601), screw rod (Q602), regulating valve (Q603), water level regulation plate (Q601) card are placed on the card and put in groove (Q302), spiral shell One end of swing arm (Q602) is connected with water level regulation plate (Q601), and the other end of screw rod (Q602) is with regulating valve (Q603) even Connect, wherein vertical width of the vertical width of water level regulation plate (Q601) slightly larger than water level regulation hole (Q301).

24. devices according to claim 19,21 or 23, it is characterised in that the deduster (Q1) also includes：It is arranged on excessive Cover plate (Q501) above flowing water water shutoff pond (Q5), one end of cover plate (Q501) are connected with shell of dust remover (Q3), and the other end is inserted Enter in overflow water seal water pond (Q2).

25. devices according to claim 20, it is characterised in that the deduster (Q1) also includes：It is arranged on overflow water seal Cover plate (Q501) above pond (Q5), one end of cover plate (Q501) are connected with shell of dust remover (Q3), other end insertion overflow In water seal pond (Q2).

26. devices according to claim 22, it is characterised in that the deduster (Q1) also includes：It is arranged on overflow water seal Cover plate (Q501) above pond (Q5), one end of cover plate (Q501) are connected with shell of dust remover (Q3), other end insertion overflow In water seal pond (Q2).

27. devices according to claim 24, it is characterised in that：A through hole, screw rod are provided with cover plate (Q501) (Q602) through the through hole.

28. devices according to claim 25 or 26, it is characterised in that：A through hole, spiral are provided with cover plate (Q501) Bar (Q602) is through the through hole.

29. devices according to any one of claim 19,21,23,25,26 or 27, it is characterised in that：Overflow water seal water Pond (Q5) top is provided with overflow pipe (Q502), for adjusting the water level in overflow water seal water pond.

30. devices according to claim 20, it is characterised in that：Overflow water seal water pond (Q5) top is provided with overflow pipe (Q502), for adjusting the water level in overflow water seal water pond；Overflow pipe (Q502) is provided with overflow pipe valve (Q503).

31. devices according to claim 24, it is characterised in that：Overflow water seal water pond (Q5) top is provided with overflow pipe (Q502), for adjusting the water level in overflow water seal water pond；Overflow pipe (Q502) is provided with overflow pipe valve (Q503).

32. devices according to claim 29, it is characterised in that：Overflow pipe (Q502) is provided with overflow pipe valve (Q503).

33. devices according to claim 14, it is characterised in that：Filling pipe is provided with dedusting pond (Q2) (Q201), for in dedusting pond supplement water.

34. according to claim 15-17,19,21,23,25,26,27 or 30-32 any one of device, its feature exists In：Filling pipe (Q201) is provided with dedusting pond (Q2), for in dedusting pond supplement water；On moisturizing water pipe (Q201) It is provided with moisturizing pipe valve (Q202).

35. devices according to claim 29, it is characterised in that：Filling pipe is provided with dedusting pond (Q2) (Q201), for in dedusting pond supplement water.

36. devices according to claim 33, it is characterised in that：Moisturizing water pipe (Q201) is provided with moisturizing pipe valve (Q202)。

37. devices according to claim 14, it is characterised in that：Dedusting pond (Q2) bottom be funnel-form or " V " type or It is rendered as inversed-cone shape；Dedusting pond (Q2) bottom is provided with sewage sludge tapping equipment (Q203).

38. devices according to any one of claim 15-17,19,21,23,25,26,27,30-32,33,35 or 36, It is characterized in that：Dedusting pond (Q2) bottom is funnel-form or " V " type or is rendered as inversed-cone shape；Dedusting pond (Q2) bottom It is provided with sewage sludge tapping equipment (Q203)；Hydraulic gage (Q204) is additionally provided with sewage sludge tapping equipment (Q203).

39. devices according to claim 34, it is characterised in that：It is additionally provided with sewage sludge tapping equipment (Q203) Hydraulic gage (Q204).

40. devices according to claim 37, it is characterised in that：It is additionally provided with sewage sludge tapping equipment (Q203) Hydraulic gage (Q204).

41. devices according to claim 14, wherein arranging above the dedusting pond (Q2) in shell of dust remover (Q3) There is support (Q7), be provided with below support (Q7) and first group of woven wire (Q701) a little punctured and in support as bubble (Q7) second group of woven wire (Q702) is provided with above.

42. according to any one of claim 15-17,19,21,23,25,26,27,30-32,33,35,37 or 39 Device, wherein being provided with support (Q7) above the dedusting pond (Q2) in shell of dust remover (Q3), sets below support (Q7) Be equipped with first group of woven wire (Q701) a little is punctured as bubble and be provided with second group of woven wire above support (Q7) (Q702)。

43. devices according to claim 41, wherein first group of woven wire (Q701) V-type screen pack or V-type wire Net, second group of woven wire (Q702) are reverse V-shaped woven wire, first group of woven wire (Q701) and/or second group of wire Net (Q702) alternating inclinations are arranged, and point of intersection is provided with sealing card (Q703).

44. devices according to claim 42, wherein first group of woven wire (Q701) V-type screen pack or V-type wire Net, second group of woven wire (Q702) are reverse V-shaped woven wire, first group of woven wire (Q701) and/or second group of wire Net (Q702) alternating inclinations are arranged, and point of intersection is provided with sealing card (Q703).

45. devices according to any one of claim 41,43 or 44, wherein on second group of woven wire (Q702) Side is provided with sprinkler head (Q8), for water in dust removal or dedusting liquid are sprayed on second group of woven wire (Q702).

46. devices according to claim 42, wherein being provided with sprinkler head above second group of woven wire (Q702) (Q8), for sprinkling water in dust removal or dedusting liquid on second group of woven wire (Q702).

47. devices according to claim 45, wherein, dash demisting plate (Q9) is provided with above sprinkler head (Q8), Net air outlet (Q303) is provided with above dash demisting plate (Q9) on shell of dust remover.

48. devices according to claim 46, wherein, dash demisting plate (Q9) is provided with above sprinkler head (Q8), Net air outlet (Q303) is provided with above dash demisting plate (Q9) on shell of dust remover.

49. quicklime slakings according to claim 39, dedusting and sewage sludge processing meanss, the deduster (Q1) are also wrapped Control system (Q10) is included, hydraulic gage (Q204), overflow pipe valve (Q503) and moisturizing pipe valve (Q202) are with control system (Q10) even Connect, control system (Q10) control hydraulic gage (Q204), overflow pipe valve (Q503) and moisturizing pipe valve (Q202).