CN208378801U - Gas cleaning device - Google Patents
Gas cleaning device Download PDFInfo
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- CN208378801U CN208378801U CN201820710961.5U CN201820710961U CN208378801U CN 208378801 U CN208378801 U CN 208378801U CN 201820710961 U CN201820710961 U CN 201820710961U CN 208378801 U CN208378801 U CN 208378801U
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- pipe
- dynamic wave
- gas
- lye
- wave scrubbing
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Abstract
The utility model relates to a kind of gas cleaning devices, including shell and dynamic wave scrubbing pipe, dynamic wave scrubbing pipe is arranged on shell and encloses between inner walls and sets to form pipe external purifying chamber, the outlet end of dynamic wave scrubbing pipe is located in shell and is connected with pipe external purifying chamber, the Dynawave nozzle connecting with lye supply pipe is disposed in dynamic wave scrubbing pipe, pipe external purifying is intracavitary to be disposed with lye spraying mechanism, and purification gas exit is provided on shell.Under the action of dynamic wave scrubbing pipe and lye spraying mechanism, by combining in dynamic wave foamed cleaning and gas-liquid convection with equal purification styles, increase time of contact and the contact probability of lye and coal gas middle acid substance, clean-up effect of the guarantee to coal gas.Depickling desalination is carried out to blast furnace gas under dry method dust service condition using this gas cleaning device, gas condensed water acidic environment and various salt ions is reduced and the pollution of pipeline and auxiliary device is corroded, while simplifying peripheral matched auxiliary equipment, reduce environmental pollution.
Description
Technical field
The utility model relates to the depicklings of a kind of gas cleaning device more particularly to blast furnace gas to remove salt treatment, belong to coal
Gas purification treatment technology field.
Background technique
According to the requirement of national industrial policies and steel industry sustainable development, more and more iron and steel enterprises use blast furnace
Gas dry-dedusting system, the system have obtained widely answering because of its significant energy conservation and consumption reduction effects and higher efficiency of dust collection
With.
Although current dry dedusting technology stablize by relative maturity, with the popularization of this technique, defect
Gradually it is exposed.The domestic part iron enterprise for using dry-dedusting system at present, blast furnace gas pipeline and affiliated facility are deposited
In serious corrosion phenomenon, it is mainly shown as that compensator pitting cracking, gas piping perforation lead to gas leak, gas valve
And the component corrosions such as reducer unit, solid-state salt fouling blockage etc..Result of study shows that blast furnace gas pipeline and affiliated facility are sent out
The basic reason of raw corrosion is H in gas condensed water+、Cl-Ion severely exceeds.The fast erosion of pipeline and affiliated facility is to coal
Gas system normal operation brings serious security risk, and the task of the blast furnace gas system reform is extremely urgent.
Utility model content
The utility model embodiment is related to a kind of gas cleaning device, can at least solve the segmental defect of the prior art.
The utility model embodiment is related to a kind of gas cleaning device, including shell and dynamic wave scrubbing pipe, the power
Wave sluicing pipe is arranged on the shell and encloses between the inner walls and sets to form pipe external purifying chamber, the dynamic wave scrubbing
The outlet end of pipe is located in the shell and is connected with the pipe external purifying chamber, is disposed in the dynamic wave scrubbing pipe and lye
The Dynawave nozzle of supply pipe connection, the pipe external purifying is intracavitary to be disposed with lye spraying mechanism, is provided on the shell net
Change gas exit.
As one of embodiment, the shell is vertical housing structure and its bottom is equipped with lye collecting pit.
As one of embodiment, dynamic wave scrubbing pipe outlet end is located above the lye collecting pit.
As one of embodiment, the pipe external purifying chamber is the annular chamber around the dynamic wave scrubbing pipe.
As one of embodiment, the lye spraying mechanism includes at least one layer of spraying layer, and each spraying layer includes
The multiple lye spray heads being circumferentially circular layout in sustained height plane and along the dynamic wave scrubbing pipe.
As one of embodiment, the inner walls are cylindrical and coaxial with the dynamic wave scrubbing pipe.
As one of embodiment, the horizontal cross-section of the horizontal sectional area of the pipe external purifying chamber and the dynamic wave scrubbing pipe
The ratio between product is 2:1~4:1.
As one of embodiment, the pipe external purifying is intracavitary to there also is provided water mist trapping mechanism；Along the dynamic wave scrubbing
Pipe is axial, and the outlet end of the dynamic wave scrubbing pipe, the lye spraying mechanism, the water mist trap mechanism, the purification coal
Gas outlet is arranged successively with dynamic wave scrubbing tube inlet end.
As one of embodiment, water mist trapping mechanism include axially be sequentially arranged along the dynamic wave scrubbing pipe it is more
Layer stainless steel wire corrugated wire gauze packing.
The coal gas for detecting gas flow and pressure is equipped with as one of embodiment, at the dynamic wave scrubbing tube inlet
Detection unit, the lye supply pipe be equipped with flow regulating unit and with the coal gas detection unit interlocked control.
The utility model embodiment at least has the following beneficial effects: gas cleaning device provided by the utility model, benefit
It is gentle by dynamic wave foamed cleaning under the action of dynamic wave scrubbing pipe and lye spraying mechanism with neutralization reaction principle
In liquid convection current and purification styles is waited to combine, increases time of contact and the contact probability of lye and coal gas middle acid substance, effectively
Acidic materials therein are removed, guarantee the clean-up effect to coal gas.Using this gas cleaning device to dry method dust service condition
Lower blast furnace gas carries out depickling desalination, reduces gas condensed water acidic environment and various salt ions to pipeline and auxiliary device
Pollution corrosion, while simplifying peripheral matched auxiliary equipment, reduce environmental pollution.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of gas cleaning device provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
Such as Fig. 1, the utility model embodiment provides a kind of gas cleaning device, including shell 11 and dynamic wave scrubbing pipe 3,
The dynamic wave scrubbing pipe 3 is arranged on the shell 11 and encloses to set to form pipe external purifying chamber 6 between 11 inner wall of shell,
The outlet end of the dynamic wave scrubbing pipe 3 is located in the shell 11 and is connected with the pipe external purifying chamber 6, and the dynamic wave is washed
The Dynawave nozzle 5 for being disposed in pipe 3 and connecting with lye supply pipe 4 is washed, is disposed with lye spray thrower in the pipe external purifying chamber 6
Structure is provided with purification gas exit on the shell 11.Based on above structure, dynamic wave scrubbing tube inlet end is located at shell 11
Outside, for being connect with coal gas inlet pipe 1, coal gas to be clean is imported, in the dynamic wave scrubbing pipe 3, is sprayed by Dynawave nozzle 5
Lye is penetrated, one section of gas-liquid froth zone is formed in the tube, strong turbulent flow group promotes gas-liquid to be sufficiently mixed contact；Dynamic wave scrubbing pipe
It exports coal gas and enters above-mentioned pipe external purifying chamber 6, lye is sprayed by above-mentioned lye spraying mechanism and further purifies coal gas, reaches and fills
Divide the effect of purification, shell 11 is discharged via above-mentioned purification gas exit in purification coal gas, which can pass through coal gas
Outlet pipe 2 is connect with purified gas storage facilities.
Gas cleaning device provided in this embodiment is sprayed using neutralization reaction principle in dynamic wave scrubbing pipe 3 and lye
It drenches under the action of mechanism, by combining in dynamic wave foamed cleaning and gas-liquid convection with equal purification styles, increases lye and coal gas
The time of contact of middle acid substance and contact probability effectively remove acidic materials therein, guarantee the clean-up effect to coal gas.
Such as Fig. 1, generally, axial along dynamic wave scrubbing pipe 3, above-mentioned purification gas exit is located at the remote of lye spraying mechanism
Side from the dynamic wave scrubbing pipe outlet end, i.e. guarantee dynamic wave scrubbing pipe outlet coal gas are handled via the lye spraying mechanism
Afterwards again from purification gas exit discharge；Further, which is located between dynamic wave scrubbing pipe inlet/outlet end, i.e.,
Dynamic wave scrubbing pipe outlet coal gas is handled and is discharged again shell 11 by lye spraying mechanism after turning back, and gas purification can be improved
Effect.It is further preferred that water mist trapping processing is first carried out before purification coal gas discharge shell 11, to meet coal gas user to coal
The requirement of gas calorific value correspondingly there also is provided water mist trapping mechanism in above-mentioned pipe external purifying chamber 6, water mist trapping mechanism is located at
Between lye spraying mechanism and purification gas exit, thus, the dynamic wave scrubbing pipe 3 axial along the dynamic wave scrubbing pipe 3
Outlet end, the lye spraying mechanism, water mist trapping mechanism, the purification gas exit and the dynamic wave scrubbing pipe
Arrival end is arranged successively.Conventional water mist catching apparatus can be used in above-mentioned water mist trapping mechanism, this is this field routine techniques；This
In embodiment, it includes the multilayer stainless steel cloth wave being axially sequentially arranged along the dynamic wave scrubbing pipe 3 which, which traps mechanism,
Line filler 9, the stainless steel wire corrugated wire gauze packing 9 can efficiently trap water mist contained in coal gas.
As preferred embodiment, such as Fig. 1, the shell 11 is vertical housing structure and its bottom is collected equipped with lye
Pond 8, lye can come downwards to tower bottom collection under the effect of gravity, on the one hand arrange convenient for structure, save space occupied, another party
Face, convenient for lye collection and recycle, reduce energy consumption, moreover, in dynamic wave scrubbing pipe 3, the lye downlink mistake of ejection
It can constantly be contacted with coal gas in journey, improve gas purification effect.It that is to say, the outlet end of dynamic wave scrubbing pipe 3 is its bottom
End, arrival end are located at 11 top of shell；It is further preferred that dynamic wave scrubbing pipe outlet end is located at the lye such as Fig. 1
The top of collecting pit 8 guarantees that separation is realized in the space of gas-liquid between, meanwhile, coal gas air-flow turn back (reversal of direction of flow) and
A small amount of pressure is only lost in exhumation process；In addition, the height between control dynamic wave scrubbing pipe 3 and lye collecting pit 8 is certain
In range, entrained liquid lye forms lye collecting pit 8 impact under the effect of gravity in sluicing pipe, forms secondary gas-liquid and connects
Touching further removes the acid ingredient in coal gas.Drain pipe 10 is connected on above-mentioned lye collecting pit 8, and in the drain pipe 10
Upper setting tapping valve can control the liquid level of lye collecting pit 8 by the tapping valve, and can arrange after running for a period of time
Waste liquid in lye collecting pit 8 out；In addition, above-mentioned lye supply pipe 4 is equipped with for hydraulic control valve, by this for hydraulic control valve
Adjusting liquid supply rate also can control the liquid level of lye collecting pit 8, and the concentration of lye in adjustable lye collecting pit 8.This
In embodiment, above-mentioned lye collecting pit 8 is preferably taper steel construction wide at the top and narrow at the bottom, and structural strength is high, convenient for the receipts of lye
Collection.
In the present embodiment, in conjunction with dynamic wave foamed cleaning primary purification, 8 liquid fluctuating double purification of lye collecting pit and gas
Liquid convection current neutralization purifies three times, can effectively improve coal gas depickling desalting efficiency, the effective removal efficiency of acid ingredient can reach 98%
More than.
Above-mentioned gas cleaning device, such as Fig. 1 are advanced optimized, the pipe external purifying chamber 6 is around the dynamic wave scrubbing
The annular chamber of pipe 3, dynamic wave scrubbing pipe export coal gas disperse around, the uniformity of gas flow distribution are improved, to improve purification
Effect.Above structure can make coal gas runner arrangement smooth, and gas pressure loses lower (< 2KPa), and processing tolerance can satisfy reality
Border production requirement.Such as Fig. 1, in the annular chamber, the lye spraying mechanism includes at least one layer of spraying layer, each spray
Layer includes the multiple lye spray heads 7 being circular layout in sustained height plane and circumferentially along the dynamic wave scrubbing pipe 3；This reality
It applies in example, spraying layer is one layer, and the quantity of lye spray head 7 is 8~12, can meet actual production demand.It is further preferred that
11 inner wall of shell is cylindrical and coaxial with the dynamic wave scrubbing pipe 3, to further increase the uniformity of gas flow distribution
And the smoothness of coal gas runner.As preferred embodiment, the horizontal sectional area and the dynamic wave of the pipe external purifying chamber 6
The ratio between horizontal sectional area of sluicing pipe 3 is 2:1~4:1, is preferred with 3:1, and preferably coal gas runner arrangement effect, coal gas pressure are reached
Power loss is smaller, and can reach better purified treatment effect.
As preferred embodiment, 3 inlet of dynamic wave scrubbing pipe is equipped with for detecting gas flow and pressure
Coal gas detection unit, the lye supply pipe 4 be equipped with flow regulating unit and with the coal gas detection unit interlocked control,
It can be applicable in the operating condition (especially blast furnace coal tolerance is easy fluctuation) of gas volume fluctuation, guarantee to imitate the purified treatment of coal gas
Fruit, job stability and high reliablity, in the present embodiment, operating flexibility range (is based on nominal situation between 30~110%
Gas volume).Conventional gas pressure detection device/gas flow detection device can be used in above-mentioned coal gas detection unit, into one
Walk also settable temperature sensor；Above-mentioned flow regulating unit realizes (such as above-mentioned for hydraulic control valve) by valve；Wherein relate to
And interlocked control be conventional automation control mode, be this field routine techniques, without in addition programming.Since the present apparatus is de-
The raising of sour desalting efficiency, actually required flux of alkaline liquor are greatly decreased, and greatly reduce alkali liquor circulating system equipment and operation
The investment of cost.
In addition, the inlet of above-mentioned dynamic wave scrubbing pipe 3 uses expanding structure such as Fig. 1, coal gas is improved in dynamic wave scrubbing
Turbulent flow effect in pipe 3.The spray direction of 5 injection direction of Dynawave nozzle and above-mentioned lye spray head 7 is preferably and coal gas
Contrary is flowed, to improve clean-up effect；Dynawave nozzle 5 and lye spray head 7, which are both preferably, uses the fan-shaped atomized spray of heavy caliber
Head controls atomization droplets diameter range, and to improve clean-up effect, and structure is simple, is not easy to plug, and can guarantee that this purification fills
Set operation steady in a long-term.It is respectively provided with inspection manhole on above-mentioned shell 11 and dynamic wave scrubbing pipe 3, is convenient for system overhaul.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of gas cleaning device, it is characterised in that: including shell and dynamic wave scrubbing pipe, the dynamic wave scrubbing pipe is worn
In enclosing to set on the shell and between the inner walls to form pipe external purifying chamber, the outlet end position of the dynamic wave scrubbing pipe
It is connected in the shell and with the pipe external purifying chamber, is disposed in the dynamic wave scrubbing pipe and is connect with lye supply pipe
Dynawave nozzle, the pipe external purifying is intracavitary to be disposed with lye spraying mechanism, and purification gas exit is provided on the shell.
2. gas cleaning device as described in claim 1, it is characterised in that: the shell is vertical housing structure and its bottom
Equipped with lye collecting pit.
3. gas cleaning device as claimed in claim 2, it is characterised in that: dynamic wave scrubbing pipe outlet end is located at described
Above lye collecting pit.
4. gas cleaning device as claimed in claim 2, it is characterised in that: the pipe external purifying chamber is around the dynamic wave
The annular chamber of sluicing pipe.
5. gas cleaning device as claimed in claim 4, it is characterised in that: the lye spraying mechanism includes at least one layer of spray
Drenching layer, each spraying layer include being located in sustained height plane and being circumferentially circular layout along the dynamic wave scrubbing pipe more
A lye spray head.
6. gas cleaning device as claimed in claim 4, it is characterised in that: the inner walls are cylindrical and move with described
Reeb sluicing pipe is coaxial.
7. gas cleaning device as claimed in claim 6, it is characterised in that: the horizontal sectional area of the pipe external purifying chamber and institute
Stating the ratio between horizontal sectional area of dynamic wave scrubbing pipe is 2:1~4:1.
8. the gas cleaning device as described in any one of claims 1 to 7, it is characterised in that: the pipe external purifying is intracavitary also
It is disposed with water mist trapping mechanism；It is axial along the dynamic wave scrubbing pipe, the outlet end of the dynamic wave scrubbing pipe, lye spray
Leaching mechanism, water mist trapping mechanism, the purification gas exit are arranged successively with dynamic wave scrubbing tube inlet end.
9. gas cleaning device as claimed in claim 8, it is characterised in that: water mist trapping mechanism includes along the power
The multilayer stainless steel wire corrugated wire gauze packing that wave sluicing pipe is axially sequentially arranged.
10. gas cleaning device as described in claim 1, it is characterised in that: be equipped with and use at the dynamic wave scrubbing tube inlet
In detection gas flow and pressure coal gas detection unit, the lye supply pipe be equipped with flow regulating unit and with the coal
Gas detection unit interlocked control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820710961.5U CN208378801U (en) | 2018-05-14 | 2018-05-14 | Gas cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820710961.5U CN208378801U (en) | 2018-05-14 | 2018-05-14 | Gas cleaning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208378801U true CN208378801U (en) | 2019-01-15 |
Family
ID=64970360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820710961.5U Active CN208378801U (en) | 2018-05-14 | 2018-05-14 | Gas cleaning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208378801U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021227488A1 (en) * | 2020-05-13 | 2021-11-18 | 中冶南方工程技术有限公司 | Coal gas deacidification cooling device |
| WO2021227521A1 (en) * | 2020-05-13 | 2021-11-18 | 中冶南方工程技术有限公司 | Gas cleaning apparatus and gas system |
-
2018
- 2018-05-14 CN CN201820710961.5U patent/CN208378801U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021227488A1 (en) * | 2020-05-13 | 2021-11-18 | 中冶南方工程技术有限公司 | Coal gas deacidification cooling device |
| WO2021227521A1 (en) * | 2020-05-13 | 2021-11-18 | 中冶南方工程技术有限公司 | Gas cleaning apparatus and gas system |
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