CN109338029A - A kind of gas flow adjusting means and deduster and dust pelletizing system - Google Patents
A kind of gas flow adjusting means and deduster and dust pelletizing system Download PDFInfo
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- CN109338029A CN109338029A CN201811318460.3A CN201811318460A CN109338029A CN 109338029 A CN109338029 A CN 109338029A CN 201811318460 A CN201811318460 A CN 201811318460A CN 109338029 A CN109338029 A CN 109338029A
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- thallium
- gas
- aditus laryngis
- tube half
- adjusting means
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to dedusting technology field, provides a kind of gas flow adjusting means and deduster and dust pelletizing system, the gas flow adjusting means include Venturi tube and weight thallium；Venturi tube includes diffuser and reducing pipe, and reducing pipe is connect to form aditus laryngis with diffuser, and reducing pipe is located at the lower section of diffuser；Weight thallium is movably disposed at aditus laryngis, and the thallium body of weight thallium is in the first arc line type, and the gas for controlling outflow aditus laryngis keeps preset flow rate；The big opening end of reducing pipe is provided with air inlet, and the big opening end of diffuser is provided with gas outlet, and reducing pipe is divided into upper tube half and lower tube half, and the tube wall of upper tube half is in the second arc line type, equal with preset flow rate for controlling the flow velocity of gas of inflow aditus laryngis.Venturi tube provided by the invention and weight thallium to change the size of aditus laryngis, and change the size of the circumferential weld between weight thallium and upper tube half by adjusting the position of weight thallium, so that flow velocity when gas is maintained at best dust removing effects.
Description
Technical field
The present invention relates to dedusting technology fields, more particularly to a kind of gas flow adjusting means and deduster and dedusting system
System.
Background technique
The flue gas generated in pneumatic steelmaking production not only contains a large amount of dust pollutant, also contains recovery value very high one
Carbon oxide gas.Wherein carbonomonoxide concentration is up to 60%~80%, if do not recycled, directly by flue gas emission to atmosphere, not only
It pollutes the environment and also will cause the wasting of resources.It is increasingly serious with environmental protection and economy form, by converter gas purification and recycle it
In CO gas it is imperative.How effectively purifying, recycling converter gas is one that negative energy emission reduction is realized in metallurgy industry
The great work of item.
With the development of converter gas purification recovery technology, foring mainly includes dry method (LT method) and wet process (OG method) two
Class method.Since hydrometallurgic recovery technology occurs early, technology is more mature, and investment is relatively fewer, and the country is big absolutely to be counted using such method.
The country is directed to production practices, has carried out technological improvement to traditional OG method, has made to core component-venturi scrubber of dedusting
It improves, improves dust removing effects.RD valve is added in Venturi tube aditus laryngis in the venturi scrubber for representing mainstream dedusting technology scheme, changes
Become aditus laryngis circulation area, improved efficiency of dust collection, but the blocking of RD valve, it is linear non-adjustable the problems such as, to dust removing effects and
Manipulation brings extreme difficulties；Another circular seam Venturi tube deduster of wet dedusting cutting edge technology is represented although weight thallium line can
Adjust, but circumferential weld area with position it is bigger closer to aditus laryngis flow velocity, make flow velocity be not up to best dedusting speed just with atomized water
Drop contact, affects dust removing effects.For these deficiencies, a kind of new heavy thallium deduster design method is proposed.
Summary of the invention
(1) technical problems to be solved
The object of the present invention is to provide a kind of gas flow adjusting means, to solve the prior art or text in the related technology
RD valve in family name's pipe easily blocks, linear non-adjustable, the heavy thallium control accuracy of aditus laryngis circulation area is low and dedusting speed is non-uniform
Technical problem.
(2) technical solution
In order to solve the above technical problem, the present invention provides gas flow adjusting means, including Venturi tube and weight thallium；Wen
Pipe includes diffuser and reducing pipe, and reducing pipe is connect to form aditus laryngis with diffuser, and reducing pipe is located at the lower section of diffuser；Weight thallium
It is movably disposed at aditus laryngis, the thallium body of weight thallium is in the first arc line type, and the gas for controlling outflow aditus laryngis keeps default stream
Speed；The big opening end of reducing pipe is provided with air inlet, and the big opening end of diffuser is provided with gas outlet, and reducing pipe is divided into upper tube half under
Semicanal, the tube wall of upper tube half are in the second arc line type, equal with preset flow rate for controlling the flow velocity of gas of inflow aditus laryngis.
Wherein, the thallium body of the heavy thallium meets: L=n Δ L, Δ L=Xn-Xn-1,
N, m is derived from so
Number, wherein L attaches most importance to the total length of thallium；Δ L attaches most importance to the single shift motion of thallium；SnThallium of attaching most importance to is in XnCross section at position
Product；Δ S attaches most importance to after the mobile Δ L of thallium, the cross-section variation amount of weight thallium；S is the area of the aditus laryngis.
Wherein, the length of the upper tube half is l, and l=L；Second camber line meets: S1=Δ S, Sn=n Δ S, Mn=S+n
Δ S,N takes natural number, wherein S1After thallium of attaching most importance to is mobile for the first time, throat area reduction amount；MnFor upper tube half
The maximum cross-section area, the smallest cross-section area of upper tube half is S；RnFor the maximum radius of upper tube half, rnFor the most smaller part of upper tube half
Diameter.
Wherein, which further includes drive rod；One end of drive rod with weight thallium connect, drive rod it is another
One end is connect with driving device.
Wherein, which further includes atomizer；Atomizer is located in lower tube half, is used for humidifier
Body.
Wherein, which further includes atomizer；Atomizer is located in lower tube half, is used for humidifier
Body；Drive rod is located in diffuser.
A kind of deduster, including above-mentioned gas flow regulator.
A kind of dust pelletizing system, including above-mentioned deduster.
(3) beneficial effect
Gas flow adjusting means provided by the invention pass through the thallium to aditus laryngis size and counterweight thallium in Venturi tube
First camber line of body, the second camber line of the tube wall of upper tube half carry out improvement design, so that passing through tune when the flow of gas changes
The position of weight thallium is saved, to change the size of aditus laryngis, and changes the size of the circumferential weld between weight thallium and upper tube half, so that gas is protected
Hold the flow velocity in best dust removing effects.
Detailed description of the invention
Fig. 1 is the overall structure diagram of one embodiment of gas flow adjusting means provided by the invention；
Fig. 2 is the design drawing of one embodiment of the thallium body of heavy thallium provided by the invention；
Fig. 3 is the three-dimensional effect diagram of one embodiment of heavy thallium provided by the invention；
Fig. 4 is the design drawing of one embodiment of the tube wall of Venturi tube provided by the invention；
In figure, 1- diffuser；2- aditus laryngis；3- upper tube half；4- lower tube half；5- drive rod；
6- weight thallium；7- atomizer.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Following instance
For illustrating the present invention, but it is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As shown in Figure 1, the present invention provides a kind of gas flow adjusting means, including Venturi tube and weight thallium 6；Venturi tube includes
Diffuser 1 and reducing pipe；The big opening end of reducing pipe is provided with air inlet；The big opening end of diffuser 1 is provided with gas outlet；Reducing pipe
Positioned at the lower section of diffuser 1, and reducing pipe is connect with diffuser 1, forms aditus laryngis 2；Weight thallium 6 is movably disposed at aditus laryngis 2,
The thallium body of weight thallium 6 is in the first arc line type, and the flue gas for controlling outflow aditus laryngis 2 keeps preset flow rate；Reducing pipe is divided into upper tube half 3
With lower tube half 4, the tube wall of upper tube half 3 is in the second arc line type, for controlling the flow velocity and preset flow rate phase that flow into the flue gas of aditus laryngis 2
Deng.
Specifically, for example, can primarily determine the length of diffuser 1 according to the exhaust gas volumn during practical off-gas recovery
Degree, the size of gas outlet, the length of reducing pipe and the size of air inlet；The junction of diffuser 1 and reducing pipe is that sealing connects
It connects, forms aditus laryngis 2；For example, the size of aditus laryngis 2 can be according to formula:It finds out, wherein v is preset flow rate, Q0For flue gas
Maximum stream flow, S be aditus laryngis 2 area.Specifically, for example, the maximum of flue gas flow can be obtained by historical statistical data
Value, then calculates the area of aditus laryngis 2, and then obtain the radius of aditus laryngis 2 according to above-mentioned preset flow rate；So set, making
The device can be in flue gas flow maximum, when can still to guarantee to flow through flue gas flow rate at aditus laryngis 2 be best dust removing effects
Flow velocity, improve the reliability of the device.For example, preset flow rate can be determined according to historical statistical data, as design
Reference frame；Weight thallium 6 it is moving up and down be arranged at aditus laryngis 2, successively come adjust aditus laryngis 2 opening size, control cigarette
Flow velocity of the air-flow through aditus laryngis 2；The thallium body of weight thallium 6 is in the first arc line type, it is ensured that when weight thallium 6 is mobile every time, to aditus laryngis 2
The regulated quantity of opening area is equal；The tube wall of upper tube half 3 is in the second arc line type, it is ensured that when the thallium point of weight thallium 6 is in aditus laryngis 2
When place, the cross section product moment of the circumferential weld between upper tube half 3 and weight thallium 6 is equal in magnitude with aditus laryngis 2；And when weight thallium 6 is per this movement
When, the regulated quantity of the opening area of aditus laryngis 2 is equal to the knots modification of the cross section product moment of the circumferential weld between upper tube half 3 and weight thallium 6；
For example, the exhaust gas volumn of the different times of real-time monitoring can be used as the trigger data of the adjusting of weight thallium 6；So set, can make
The adjusting of aditus laryngis 2 and the adjusting synchronous coordination of circumferential weld guarantee the flow velocity when flow velocity of flue gas is in best purification effect.
Venturi tube and weight thallium 6 provided by the invention passes through the thallium body to 2 size of aditus laryngis and counterweight thallium 6 in Venturi tube
The first camber line, upper tube half 3 the second camber line of tube wall carry out improvement design so that passing through tune when the flow of flue gas changes
The position of weight thallium 6 is saved, to change the size of aditus laryngis 2, and changes the size of the circumferential weld between weight thallium 6 and upper tube half 3, so that cigarette
Gas is maintained at flow velocity when best dust removing effects.
As shown in Figure 2 and Figure 3, further, the thallium body of weight thallium 6 meets: L=n Δ L, Δ L=Xn-Xn-1,N takes natural number, wherein L attaches most importance to the total length of thallium 6, and Δ L attaches most importance to thallium 6
Single shift motion；It is located at aditus laryngis 2 using the thallium point of weight thallium 6 as initial position, is denoted as X0；It is located at larynx with the thallium tail of weight thallium 6
It is final position at mouth 2, is denoted as Xn；With X0、X1、...XnFor abscissa, X is corresponded to weight thallium 60、X1、...XnSection at position
Radius r0、r1、...rnCoordinate system is established for ordinate；SnThallium 6 of attaching most importance to is in XnCross-sectional area at position；Δ S attach most importance to thallium 6 shifting
After dynamic Δ L, the cross-section variation amount of weight thallium 6, and Δ S is preset definite value, wherein Δ S meetsM is natural number, and n and m is corresponded, n takes 0,1 ... n, m be corresponding to take 0,1 ... m；QmFor
The flow of flue gas different moments.Specifically, for example, n can take 20, alternatively, n takes the more big precision adjusted every time of the value of 50, n
It is higher, depending on the value of n needs to combine the exhaust gas volumns of the different times of statistics when actual design, Q0When for exhaust gas volumn maximum, QmFor
When exhaust gas volumn is 0；The selection of Δ L is determined according to the selection of the length and n value of weight thallium 6, for example, working as different times exhaust gas volumn
Variable quantity it is bigger, when change frequency is faster, correspondingly, Δ L is also corresponding bigger, and the travel frequency of weight thallium 6 is also corresponding
It is faster；Wherein, the radius of thallium point is 0, that is to say, that the thallium point of weight thallium 6 is a point, and the radius of thallium tail is rn, the radius and larynx
The radius of mouth 2 is equal, i.e., after weight thallium 6 moves up n times, aditus laryngis 2 is blocked completely；Wherein, each amount of movement of weight thallium 6
For Δ L, the variable quantity of the cross-sectional area of weight thallium 6 is Δ S, and Δ S is constant, i.e., the cross-sectional area of weight thallium 6 is all when mobile every time
Can changes delta S, accordingly, Δ S is also decreased or increased after weight thallium 6 is mobile every time in the area of aditus laryngis 2, then can be with
X0、X1、...XnFor abscissa, X is corresponded to weight thallium 60、X1、...XnSection radius r at position0、r1、...rnIt is built for ordinate
Vertical coordinate system, can make the first camber line by mapping software again by above-mentioned corresponding relationship, later by first camber line in
Axis is rotated by 360 ° the perspective view that can be obtained by weight thallium 6.For example, in order to keep dedusting region peripheral speed uniform, the tail portion of weight thallium 6
It can be processed into down semicircular body, slow down the inhomogeneities of VELOCITY DISTRIBUTION.So set, making weight thallium 6 when moving, adjust every time
The area of the aditus laryngis 2 of section is equal, and is regulated and controled more accurate.
As shown in figure 4, further, the length of upper tube half 3 is l, and l=L；Second camber line meets: S1=Δ S, Sn=n
Δ S, Mn=S+n Δ S,N takes natural number, wherein S1After thallium 6 of attaching most importance to moves for the first time, 2 area of aditus laryngis subtracts
On a small quantity；MnFor the maximum cross-section area of upper tube half 3, the smallest cross-section area of upper tube half 3 is S；RnFor the maximum radius of upper tube half 3,
rnFor the least radius of upper tube half 3.Specifically, for example, being located at aditus laryngis 2 using the thallium point of weight thallium 6 as initial position, then upper tube half
3 cross-sectional area is downward from aditus laryngis 2, at interval of the distance of Δ L, the increase Δ S of the cross-sectional area of upper tube half 3, upper tube half 3
The maximum cross-section area is Mn, due to Mn=S+n Δ S, therefore the cross-sectional area of the circumferential weld between upper tube half 3 and weight thallium 6 is definite value S；
When weight thallium 6 moves up, the cross-sectional area of the distance of every mobile Δ L, the circumferential weld between upper tube half 3 and weight thallium 6 reduces Δ S,
Finally after the mobile n times of weight thallium 6, the cross-sectional area of the circumferential weld between upper tube half 3 and weight thallium 6 is reduced to 0, at this time aditus laryngis 2
It is blocked completely.It is similar with the forming method of weight thallium 6, after obtaining the second camber line, i.e. around 360 ° of middle shaft rotation by the second camber line
The stereochemical structure of upper tube half 3 can be obtained.So set, making the change of the variable quantity of the cross-sectional area of circumferential weld and the area of aditus laryngis 2
Change amount is synchronous and equal, ensure that flow velocity of the flue gas in circumferential weld and at aditus laryngis 2 is optimal dedusting flow velocity, regulates and controls more smart
Really, dust removing effects are more preferable.
Further, which further includes drive rod 5；One end of drive rod 5 is connect with weight thallium 6, is driven
The other end of lever 5 is connect with driving device.Specifically, for example, drive rod 5 can be set in diffuser 1, drive rod 5
One end is connect with the thallium point of weight thallium 6, and the other end is connect with driving device, and driving device can drive according to real-time exhaust gas volumn
Drive rod 5 moves, and then weight thallium 6 is driven to move, to adjust the size of the opening of aditus laryngis 2.So set, making the device more
It is intelligent.
Further, which further includes atomizer 7；Atomizer 7 is located in lower tube half 4, uses
In humidification flue gas.Specifically, for example, atomizer 7 can be set in the middle of lower tube half 4, Alevaire can be made in this way
That sprays is more uniform, is conducive to improve dust removing effects.
Further, which further includes atomizer 7；Atomizer 7 is located in lower tube half 4, uses
In humidification flue gas；Drive rod 5 is located in diffuser 1.Specifically, for example, when drive rod 5 is located in diffuser 1, with atomizer
7 are located at the not ipsilateral of weight thallium 6, and this avoid the work of the motion artifacts atomizer 7 because of drive rod 5, are conducive to improve
Dust removing effects.
A kind of deduster, including above-mentioned gas flow regulator.
A kind of dust pelletizing system, including above-mentioned deduster.
As can be seen from the above embodiments, gas flow adjusting means provided by the invention are able to maintain dedusting area speed guarantor
It holds in best dedusting speed level, so that dedusting region different height area of section is equal, extends best dedusting zone length,
Efficiency of dust collection is to be improved；Linearisation further increases, so that manipulation drive rod is more easy；The present invention designs letter
Single, feasibility is strong, and control accuracy is high.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of gas flow adjusting means, which is characterized in that including Venturi tube and weight thallium；
The Venturi tube includes diffuser and reducing pipe, and the reducing pipe is connect to form aditus laryngis with the diffuser, it is described gradually
The draw is located at the lower section of the diffuser；
The heavy thallium is movably disposed at the aditus laryngis, and the thallium body of the heavy thallium is in the first arc line type, for controlling outflow
The gas of the aditus laryngis keeps preset flow rate；
The big opening end of the reducing pipe is provided with air inlet, and the big opening end of the diffuser is provided with gas outlet, the reducing pipe
It is divided into upper tube half and lower tube half, the tube wall of the upper tube half is in the second arc line type, for controlling the gas for flowing into the aditus laryngis
Flow velocity is equal with the preset flow rate.
2. gas flow adjusting means according to claim 1, which is characterized in that the thallium body of the heavy thallium meets: L=n
Δ L, Δ L=Xn-Xn-1,
N, m takes natural number, wherein
L is the total length of the heavy thallium；Δ L is the single shift motion of the heavy thallium；SnX is in for the heavy thalliumnIt is transversal at position
Area；After Δ S is the mobile Δ L of the heavy thallium, the cross-section variation amount of the heavy thallium；S is the area of the aditus laryngis.
3. gas flow adjusting means according to claim 2, which is characterized in that the length of the upper tube half is 1, and l
=L；
Second camber line meets: S1=Δ S, Sn=n Δ S, Mn=S+n Δ S,N takes natural number, wherein S1
After heavy thallium movement for the first time, the throat area reduction amount；MnFor the maximum cross-section area of the upper tube half, it is described on
The smallest cross-section area of semicanal is S；RnFor the maximum radius of the upper tube half, rnFor the least radius of the upper tube half.
4. gas flow adjusting means according to claim 1, which is characterized in that further include drive rod；
One end of the drive rod is connect with the heavy thallium, and the other end of the drive rod is connect with driving device.
5. gas flow adjusting means according to claim 1, which is characterized in that further include atomizer；
The atomizer is located in the lower tube half, for humidifying the gas.
6. gas flow adjusting means according to claim 5, which is characterized in that further include atomizer；
The atomizer is located in the lower tube half, for humidifying the gas；
The drive rod is located in the diffuser.
7. a kind of deduster, which is characterized in that including the described in any item gas flow adjusting means of claim 1-7.
8. a kind of dust pelletizing system, which is characterized in that including deduster according to any one of claims 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318460.3A CN109338029A (en) | 2018-11-07 | 2018-11-07 | A kind of gas flow adjusting means and deduster and dust pelletizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811318460.3A CN109338029A (en) | 2018-11-07 | 2018-11-07 | A kind of gas flow adjusting means and deduster and dust pelletizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109338029A true CN109338029A (en) | 2019-02-15 |
Family
ID=65314221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811318460.3A Pending CN109338029A (en) | 2018-11-07 | 2018-11-07 | A kind of gas flow adjusting means and deduster and dust pelletizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109338029A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351184A (en) * | 2023-03-07 | 2023-06-30 | 华基环保(武汉)有限公司 | Dust remover for filter material processing workshop and control method thereof |
| CN116351184B (en) * | 2023-03-07 | 2024-07-19 | 华基环保(武汉)有限公司 | Dust remover for filter material processing workshop and control method thereof |
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| CN201040220Y (en) * | 2007-01-26 | 2008-03-26 | 李昌德 | Adjustable aditus laryngis circumferential seam venturi |
| CN201154281Y (en) * | 2008-02-15 | 2008-11-26 | 北京博鹏北科科技有限公司 | Downstriker circular seam venturi tube |
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| CN201040220Y (en) * | 2007-01-26 | 2008-03-26 | 李昌德 | Adjustable aditus laryngis circumferential seam venturi |
| CN201154281Y (en) * | 2008-02-15 | 2008-11-26 | 北京博鹏北科科技有限公司 | Downstriker circular seam venturi tube |
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| CN116351184A (en) * | 2023-03-07 | 2023-06-30 | 华基环保(武汉)有限公司 | Dust remover for filter material processing workshop and control method thereof |
| CN116351184B (en) * | 2023-03-07 | 2024-07-19 | 华基环保(武汉)有限公司 | Dust remover for filter material processing workshop and control method thereof |
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