CN200984489Y

CN200984489Y - Wet-type nanometer-level transverse-current duster

Info

Publication number: CN200984489Y
Application number: CNU2006200367581U
Authority: CN
Inventors: 董俊; 王忠义
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-22
Filing date: 2006-12-22
Publication date: 2007-12-05
Anticipated expiration: 2016-12-22

Abstract

The utility model discloses a wet type nanometer eddy current duster, which mainly consists of a furnace body, a smoke-liquid mixing chamber arranged at the top of the furnace body and a treatment liquid spray port positioned at the side wall, a smoke-liquid expansion chamber communicated with the smoke-liquid mixing chamber, an eddy current duster arranged inside the furnace body and positioned inside the smoke-liquid expansion chamber, a settling tank positioned at the bottom of the furnace body, and a purified gas and a purified liquid outlet pipe nozzles arranged on the furnace body wall. The utility model is characterized in that: the eddy current duster consists of a hollow-core diversion taper at the top and an eddy current foam dedusting chamber at the underpart; the surrounding wall formed the chamber is a slat consisting of a circle of curved triangular fins arranged outside of the chamber; a circulator positioned below and communicated with the chamber is provided with a purified gas and a foam liquid outlet pipes. The utility model has the advantages that: through adopting measures including smoke-liquid mixing expansion, eddy current foam filtering and filter plate dedusting, dedusting efficiency of nanometer dust with particle size being less than 0.2 um reaches 99.95 percent; meanwhile, discharged gas and liquid can be reused without environmental pollution.

Description

The wet nanometer grade vortex dust removal machine

Technical field

The utility model relates to a kind of device that dusty gas is carried out dedusting, especially relates to a kind of cleaner that can effectively remove the nano level superfine dust that flue dust behind the high-risk castoff burning or mining industry produce.

Background technology

High-risk discarded object, the rubbish that produces as hospital, zooperal discarded object, with useless sensitization liquid, developer solution or the like, people's custom is the most unmanageable part in the townm refuse with extraordinary rubbish of its appellation or high-risk rubbish.The a large amount of toxic and harmfuls that produce in the burning disposal process directly are discharged in the atmosphere, surrounding air, water quality, natural environment are polluted very serious, have not only seriously endangered the healthy of people, have also destroyed ecological environment, and are very harmful.

Pulverize in the process at ore, also produce a large amount of dust, people claim that the dust of granularity below 0.20 μ m is the nanoscale dust, different with big dust particle is: the former is easy to remove, and this nanoscale dust is because little, the light weight of its granularity, pulverize very easily to float in the process at ore and be diffused in the air, remove that they are very difficult in for a long time.Therefore, this dust is to people, bigger to the harm of environment.

The patent No. is the Chinese patent of ZL 94212017.5, a kind of eddy current type micropore deduster is disclosed, its structure is: in the housing upper end deflection cone and air inlet pipe are housed, the housing inner chamber is equipped with vortex cone, the micropore tube is housed between vortex cone and housing, housing is equipped with blast pipe on the face of cylinder, and base cone and ash bucket are equipped with in the housing lower end.This deduster is by micropore tube and vortex cone structure in the housing, purges the micropore tube by micro porous filtration on the micropore tube and eddy current and carries out dedusting.Because its efficiency of dust collection is subjected to the restriction of filter opening on the micropore tube, efficiency of dust collection only is controlled at 97%, does not also reach the mean level of efficiency of dust collection 99%, so the deduster of this structure, dust removing effects is unsatisfactory, and is only limited to processing dry type dust-contained airflow.

Summary of the invention

Goal of the invention of the present utility model is: for the user provides a kind of wet nanometer grade vortex dust removal machine that can efficiently remove flue dust or mining industry nano level superfine dust.

Goal of the invention of the present utility model realizes by implementing following technical proposals:

A kind of wet nanometer grade vortex dust removal machine, the body of heater that mainly has the acid and alkali-resistance lining by inwall, be contained in the tobacco juice mixing chamber that the body of heater top is connected with the venturi type equipment flue dust input mouth of pipe, the treatment fluid that is contained on this chamber locular wall sprays the mouth of pipe, be positioned at the tobacco juice expanding chamber that is communicated with it below the tobacco juice mixing chamber, be contained in the hydrocyclone that is positioned at the tobacco juice expanding chamber in the body of heater, be positioned at bottom of furnace body and collect the sedimentation basin and the slag-drip opening thereof of dust, and the Purge gas discharge mouth of pipe and the decontaminating liquid discharge mouth of pipe that are contained on the furnace body wall are formed, it is characterized in that: the described hydrocyclone that is positioned at the tobacco juice expanding chamber in the body of heater that is contained in is by the hollow deflection cone that is positioned at this hydrocyclone top point upward, sidewall is made up of the eddy current foam dust-removing chamber that slat constitutes around being contained in this deflection cone bottom; Constitute the slat of wall around this eddy current foam dust-removing chamber, by around the vertical axis of hollow deflection cone, equidistantly arrange each other, top, blade face has following bending angle and is positioned at the outdoor circle of this foam dust-removing and be similar to the leg-of-mutton fin of curved surface and formed; Also include and be arranged on that this eddy current foam dust-removing Shi Xia Bu And is communicated with it, sidewall and have the circulator that Purge gas discharge pipe and foam liquid remove out pipe, Purge gas discharge pipe on the circulator sidewall and the Purge gas on the furnace body wall are discharged the mouth of pipe and are fused, and the foam liquid discharge pipe then stretches to sedimentation basin.

In above-mentioned wet nanometer grade vortex dust removal machine, described and eddy current foam dust-removing chamber, hollow deflection cone are formed the circulator of one, are that seat is contained on the horizontal semitight division board of forming along the most of horizontal edge of inboard wall of furnace body at the sedimentation basin top of sedimentation basin.

In above-mentioned wet nanometer grade vortex dust removal machine, the horizontal semitight division board of this sedimentation basin is provided with the Purge gas passing away that is communicated with Purge gas discharge pipe on the circulator.

In above-mentioned wet nanometer grade vortex dust removal machine, also be provided with and be arranged in the filter that sedimentation basin liquid is filtered below the horizontal semitight division board of sedimentation basin.

Above-mentioned wet nanometer grade vortex dust removal machine also is equipped with the heat exchanger of protecting special constant temperature for the foam solution in the cavity and Purge gas in described circulator cavity.

The operation principle of the utility model dedusting is as follows:

With pending flue gas or mining industry nanoscale dusty gas, enter the tobacco juice mixing chamber at body of heater top by the flue dust gas inlet pipe of venturi type equipment, the injection mouth of pipe on this locular wall simultaneously, the treatment fluid that will contain chemical reagent sprays into indoor and flue gas hybrid cooling with the pressure of 0.20-0.30MPa, the gas-liquid of hybrid cooling enters the tobacco juice expanding chamber of bottom then, because the volumetric expansion flow velocity slows down, the above separated sedimentation basin that falls into of bulky grain flue dust of 50 μ m in the flue gas, and accelerate because of the channel narrows flow velocity through deflection cone through the tobacco juice mixed liquor after the dedusting, slat around the high speed impact eddy current foam dust-removing chamber on the wall, make whole hydrocyclone rotation, make simultaneously and produce negative pressure in its cavity, the tobacco juice mixed liquor just enters in the hydrocyclone cavity from the space between adjacent two curved surface triangle fins, be subjected to the effect of powerful eddy current that mixed liquor is stirred into foam, flue dust in the former mixed liquor in the contained flue gas is caught by foam and is flowed into following circulator with foam solution, foam liquid drain on the circulator sidewall is discharged into sedimentation basin again, and by the Purge gas behind the foamed filter, Purge gas discharge pipe on the circulator sidewall is discharged the mouth of pipe by the Purge gas on the furnace body wall and is discharged; Liquid in the sedimentation basin and dust are through precipitation, the dirt slag is discharged by slag-drip opening, precipitated liquid and contained gas thereof the filter below being positioned at the horizontal semitight division board of sedimentation basin filters, and Purge gas is discharged through circulator Purge gas discharge pipe by the Purge gas passing away that is provided with on this division board; And filtered fluid is discharged by the discharge of the decontaminating liquid on the furnace body wall mouth of pipe, recycles through dealing with liquid introducing treatment fluid playpipe after the additional chemical agent examination again.

Needs according to Purge gas and decontaminating liquid use can be provided with heat exchanger in circulator, make the Purge gas of discharge and liquid keep needed serviceability temperature.

Advantage of the present utility model is: ordinary circumstance can reach the ideal effect of udst separation gas by the two-stage dust removal installation:

First order dust removal installation: adopted tobacco juice mixing chamber and tobacco juice expanding chamber structure combining, made the tobacco juice that in the tobacco juice mixing chamber, mixes, by the expanse effect in expanding chamber, that the bulky grain flue dust more than the 50 μ m is separated;

Second level dust removal installation: in body of heater, be provided with and be positioned at the hydrocyclone that the flue gas expanding chamber has special construction, by the hollow deflection cone of this deduster and the powerful eddy current that synergy produced of eddy current foam dust-removing cell structure, to stir into foam through the mixing tobacco juice after the first order dedusting, by foamed filter effect udst separation gas.

As required, the utility model also can be set up third level dust removal installation: filter is set on sedimentation basin, promptly below the horizontal semitight division board of sedimentation basin filter is set, liquid in the sedimentation basin and contained gas are carried out dust removal by filtration.

Because the utility model has structurally adopted the dust removal installation of combinations thereof, improved efficiency of dust collection greatly, test shows: for the nano level superfine dust of granularity below 0.2 μ m, its efficiency of dust collection is up to 99.95%.Thereby the dust removing effects of the utility model wet type hydrocyclone is very good, and the gas that it is discharged, liquid not only can cycling and reutilizations, and gas can not pollute environment yet in the air and directly be discharged into.

Description of drawings

Fig. 1 is a main cutaway view of the present utility model.

Fig. 2 hydrocyclone structural representation

Mark among the figure: 1 is body of heater, 2 is the tobacco juice mixing chamber at body of heater top, 3 is the tobacco juice expanding chamber, 4 is the treatment fluid injection mouth of pipe on the tobacco juice mixing chamber sidewall, 5 is the hollow deflection cone at hydrocyclone top, 6 is the eddy current foam dust-removing chamber as the hydrocyclone matrix, 7 is the circulator that is communicated with eddy current foam dust-removing chamber, 8 is the Purge gas discharge mouth of pipe on the furnace body wall, 9 is the Purge gas discharge pipe on the circulator sidewall, 10 is the horizontal semitight isolation seat board of circulator and sedimentation basin, 11 is the foam liquid drain on the circulator sidewall, 12 is that the Purge gas passing away on the seat board is isolated in horizontal semitight, and 13 is the decontaminating liquid discharge mouth of pipe on the furnace body wall, and 14 is the filter on the sedimentation basin, 15 is sedimentation basin, the 16 flue dust gas inlet pipe mouths for venturi type equipment are the gas approach of tobacco juice mixing chamber, and 17 is slag-drip opening, and 18 is the curved surface triangle fin in the slat.

The specific embodiment

A kind of wet nanometer grade vortex dust removal machine, its cylindrical furnace are stainless steel casing 1, and outer casing inner wall is resistance to acids and bases material coating, the high 160cm of body of heater, horizontal diameter 200cm; The gas approach of the tobacco juice mixing chamber 2 at body of heater top is connected with the venturi type equipment flue dust input mouth of

pipe

16,2 one-tenth hollow frusto-conical of tobacco juice mixing chamber, its top mouthful diameter 24cm, cone bottom diameter 40cm, high 25cm, treatment fluid sprays the mouth of pipe 4 and is contained on this chamber locular wall; Being positioned at below the tobacco juice mixing chamber 2 is the cylindric tobacco juice expanding chamber 3 of hollow that is communicated with it, its column diameter 40cm, the high 25cm of post; Be contained in the hydrocyclone that is positioned at flue gas expanding chamber 3 in the body of heater, sidewall is made up of the eddy current foam dust-removing chamber 6 that slat constitutes by the hollow deflection cone 5 that is positioned at this dust remover roof point upward and around being contained in this deflection cone bottom, and the cone bottom diameter of this hollow deflection cone 5 is 20cm, bore high 18cm; Eddy current foam dust-removing chamber 6 is that hollow is cylindric, horizontal diameter 20cm, the high 20cm of post, be positioned at the slat of this outdoor its perisporium of composition, by around the vertical axis of hollow deflection cone 5, equidistantly arrange each other, a circle that top, blade face has following bending angle is similar to the leg-of-mutton fin 18 of curved surface and formed; The frustum circulator 7 that is positioned at below the eddy current foam dust-removing chamber 6 and connects with this chamber disjunctor, its top diameter 20cm, high 25cm, end diameter 22cm is that the Breadth Maximum 160cm of this plate is isolated on the seat board 10 in the horizontal semitight that seat is contained in sedimentation basin 15; Below isolating seat board 10, this horizontal semitight is provided with the identical filter 14 of shape size; Purge gas discharge pipe 9 on circulator 7 sidewalls is discharged the mouth of pipe 8 with the Purge gas on the furnace body wall and is connected, and the Purge gas passing away 12 that sedimentation basin is isolated on the seat board 10 is communicated with the Purge gas discharge pipe 9 of circulator 7; Foam liquid drain 11 on circulator 7 sidewalls stretches to sedimentation basin 15; Decontaminating liquid also is housed on furnace body wall discharges the mouth of pipe 13, bottom of furnace body is provided with slag-drip opening 17.Constitute all components of the utility model wet type eddy current dust removal machine; except the curved surface triangle fin 18 of filter 14 and formation slat; remaining component all is a stainless steel part, and these assemblies all have the protective finish that prevents acid and alkali corrosion on the surface of contact flue gas, treatment fluid.The curved surface triangle fin 18 that constitutes slat then is to make with carbon fibre composite.Needs according to Purge gas and decontaminating liquid use can be provided with heat exchanger in circulator 7, make the Purge gas of discharge and liquid keep needed serviceability temperature.Test shows: the utility model wet type eddy current dust removal machine, for the nano level superfine dust below the granularity 0.2 μ m, its efficiency of dust collection is up to 99.95%.Thereby the dust removing effects of the utility model wet type eddy current dust removal machine is very good, and the gas that it is discharged, liquid not only can utilize again, also can not pollute environment and Purge gas directly is discharged in the air.

Claims

1, the wet nanometer grade vortex dust removal machine, the body of heater (1) that mainly has the acid and alkali-resistance lining by inwall, be contained in the tobacco juice mixing chamber (2) that the body of heater top is connected with the flue gas input equipment mouth of pipe (16), the treatment fluid that is contained on the locular wall of this chamber (2) sprays the mouth of pipe (4), be positioned at the following tobacco juice expanding chamber (3) that is communicated with it of tobacco juice mixing chamber (2), be contained in the hydrocyclone that is positioned at tobacco juice expanding chamber (3) in the body of heater, be positioned at bottom of furnace body and collect the sedimentation basin (15) and the slag-drip opening (17) thereof of dust, and the Purge gas discharge mouth of pipe (8) and the decontaminating liquid discharge mouth of pipe (13) that are contained on the furnace body wall are formed, it is characterized in that: the described hydrocyclone that is positioned at tobacco juice expanding chamber (3) in the body of heater that is contained in is by the hollow deflection cone (5) that is positioned at this hydrocyclone top point upward, sidewall is made up of the eddy current foam dust-removing chamber (6) that slat constitutes around being contained in this deflection cone (5) bottom; Constitute this eddy current foam dust-removing chamber (6) slat of wall all around, by around the vertical axis of hollow deflection cone (5), equidistantly arrange each other, top, blade face has following bending angle and is positioned at the outer circle in this foam dust-removing chamber (6) and be similar to the leg-of-mutton fin of curved surface (18) and formed; Also include and be arranged on this eddy current foam dust-removing chamber (sidewall that 6) Xia Mian And is communicated with it has Purge gas discharge pipe (9) and foam liquid removes out the circulator (7) of pipe (11), Purge gas discharge pipe (9) on circulator (7) sidewall is discharged the mouth of pipe (8) with the Purge gas on the furnace body wall and is fused, and foam liquid discharge pipe (11) then stretches to sedimentation basin (15).

2, according to the described wet nanometer grade vortex dust removal machine of claim 1, it is characterized in that: described and eddy current foam dust-removing chamber (6), hollow deflection cone (5) are formed the circulator (7) of one, be seat be contained in the top of sedimentation basin (15) and along the most of level of body of heater (1) inwall along on the horizontal semitight division board of being formed of sedimentation basin (10).

3, according to the described wet nanometer grade vortex dust removal machine of claim 2, it is characterized in that: on the horizontal semitight division board of described sedimentation basin (10), be provided with the Purge gas passing away (12) that is communicated with Purge gas discharge pipe (9) on the circulator (7).

4, according to the described wet nanometer grade vortex dust removal machine of claim 1, it is characterized in that: below the horizontal semitight division board of sedimentation basin (10), be provided with filter (14).

5, according to the described wet nanometer grade vortex dust removal machine of claim 1, it is characterized in that: in the cavity of described circulator (7), also heat exchanger can be housed.