CN105536359B - High efficiency gravitational precipitator - Google Patents
High efficiency gravitational precipitator Download PDFInfo
- Publication number
- CN105536359B CN105536359B CN201510919215.8A CN201510919215A CN105536359B CN 105536359 B CN105536359 B CN 105536359B CN 201510919215 A CN201510919215 A CN 201510919215A CN 105536359 B CN105536359 B CN 105536359B
- Authority
- CN
- China
- Prior art keywords
- lower cone
- air intake
- upper shell
- intake branch
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/02—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising gravity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/22—Dust arresters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cyclones (AREA)
Abstract
The present invention discloses a kind of high efficiency gravitational precipitator, the problem of dedusting demand of blast furnace gas can not be met mainly for the gravitational precipitator under prior art, it is proposed that a kind of high efficiency gravitational precipitator, including shell of dust remover, air inlet pipe and escape pipe；The dedusting housing includes upper shell and lower cone, and the upper shell bottom is arranged on inside lower cone, and the upper shell top is arranged on outside lower cone；The air inlet pipe includes inlet manifold and an at least air intake branch, the inlet manifold is connected with the upper shell, described air intake branch one end connects with the inlet manifold, the connection of the air intake branch other end and the lower cone, and the air intake branch connects with lower cone bias；The escape pipe connects with the top of the lower cone, and the height of the escape pipe and the lower cone junction is higher than the technical scheme of the bottom of the upper shell.The present invention improves the dust removing effects of gravitational precipitator, additionally it is possible to smoothly settles small particle grit.
Description
Technical field
The present invention relates to a kind of gravitational precipitator, specifically a kind of high efficiency gravitational precipitator.
Background technology
Modern ironmaking production almost all uses blast furnace, and the course of work of blast furnace is as follows：The ore Jing Guo working process,
Coke and flux are loaded by furnace roof in batches according to a certain ratio, and hot blast is blasted in stove by bottom house, with coke before air port of burning, are made
A series of physical chemical reaction occurs in stove and produces molten iron discharging.In blast furnace ironmaking process, burning and a system due to coke
The generation of row physical-chemical reaction, inevitably result from a large amount of dust-laden gas-blast furnace gases.With over twenties years I
State's rapid development of economy and the continuous improvement of living standards of the people, the demand of ferrous materials is also continuously increased.And with steel
The increase of iron production capacity, pollutant discharge amount steeply rise, resulting problem of environmental pollution, and oneself restricts China's economy through turning into
The big factors further improved with the general level of the health with social further development and people's lives.
In order to reduce the environmental problem caused by the discharge of blast furnace gas, it is necessary to which the blast furnace gas drawn in blast furnace is removed
Dirt processing, removes the dust in blast furnace gas.The gravitational precipitator that current each factory uses is in the prevalence of structure is single, coal
The position of gas import is not reasonable, and the flowing of air-flow internally is not abundant enough, the defects of dust granules can not being made effectively to settle.
With the dilatation and transformation of iron and steel enterprise's blast furnace, original blast-furnace gas dedusting system can not meet dust removal requirement, therefore right
The renewal or transformation of dust pelletizing system are extremely urgent.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of high efficiency gravitational precipitator, the efficiency of dust collection of gravitational precipitator is improved.
To reach above-mentioned purpose, high efficiency gravitational precipitator of the present invention includes shell of dust remover, air inlet pipe and escape pipe；Institute
Stating dedusting housing includes upper shell and lower cone, and the upper shell bottom is arranged on inside lower cone, and the upper shell top is set
Put outside lower cone；The air inlet pipe includes inlet manifold and an at least air intake branch, the inlet manifold with it is described on
Cylinder connects, and described air intake branch one end connects with the inlet manifold, the air intake branch other end and the lower cone
Connection, the air intake branch connect with lower cone bias；The escape pipe connects with the top of the lower cone, it is described go out
Tracheae and the mouth of pipe of the lower cone junction are highly higher than the bottom height of the upper shell.
Further, the air intake branch includes changeover portion and eddy flow section, and the eddy flow section diameter is less than the changeover portion
Diameter, the eddy flow section is connected with the lower cone, and the changeover portion is connected with the inlet manifold.
Specifically, the air intake branch eddy flow section is horizontally disposed with.
Further, bottom height of the bottom side height of the air intake branch not less than the upper shell.
Specifically, the axis of the air intake branch and the lower cone junction be air inlet axis, the air inlet axis and
The distance of the intersection point of the lower cone inwall to lower cone axis is air inlet radius, the air inlet axis and the upper shell axis
Distance be more than the upper shell and the air intake branch radius sum, less than the air inlet radius and the air intake branch radius
Difference.
Further, the air inlet pipe includes two air intake branches, two air intake branches respectively with the lower cone
Opposite sides connects, identical from the gas cyclone direction that two air intake branches enter the lower cone.
High efficiency gravitational precipitator of the present invention draws branch pipe in the inlet manifold of gravitational precipitator, in deduster lower cone
Crossflow is formed, the horizontal of air-flow blows the interaction for strengthening particle and particle, particle and wall, can not only significantly improved
The efficiency of dust collection of deduster, it can also make tiny grit also can be smoothly clear.Air-flow forms rotary pneumatic in uphill process
Stream, so as to extend residence time of the air-flow in gravitational precipitator, particle speed can be gradually reduced, in the effect of gravity and inertia
It is lower to be moved to deduster bottom, promote the gas solid separation of gravitational precipitator.
Brief description of the drawings
Fig. 1 is the structural representation of high efficiency gravitational precipitator of the present invention；
Fig. 2 is the structural representation that high efficiency gravitational precipitator of the present invention is provided with two air intake branches.
Embodiment
With reference to Figure of description, the present invention will be further described.
Embodiment 1
As shown in Figure 1, the high efficiency gravitational precipitator of the present embodiment includes shell of dust remover, air inlet pipe and escape pipe 6；Institute
Stating dedusting housing includes upper shell 1 and lower cone 2, and the bottom of upper shell 1 is arranged on inside lower cone 2, on the upper shell 1
Portion is arranged on outside lower cone 2；The air inlet pipe includes inlet manifold 3 and air intake branch 4, the inlet manifold 3 with it is described on
Cylinder 1 connects, and described one end of air intake branch 4 connects with the inlet manifold 3, the other end of air intake branch 4 and the lower cone
The connection of body 2, the air intake branch 4 connect with the bias of lower cone 2；The top of the escape pipe 6 and the lower cone 2 connects
Logical, the height of the escape pipe 6 and the junction of lower cone 2 is higher than the bottom of the upper shell 1.
The present embodiment high efficiency gravitational precipitator draws winding pipe from air intake house steward, the shape in deduster lower cone 2
Into crossflow, the horizontal of air-flow blows the interaction for strengthening particle and particle, particle and wall, can not only significantly improve and remove
The efficiency of dust collection of dirt device, it can also make tiny grit also can be smoothly clear.Because air intake branch 4 and lower cone 2 are eccentric even
Logical, horizontal blowing gas stream can make air-flow form swirling eddy in uphill process, stop so as to extend air-flow in gravitational precipitator
The time is stayed, particle speed can be gradually reduced, and moved in the presence of gravity and inertia to deduster bottom, promoted gravitational dust collection
The gas solid separation of device.
Embodiment 2
On the basis of above-described embodiment, as shown in Fig. 2 the air intake branch 4 includes changeover portion and eddy flow section, the rotation
The diameter that section diameter is less than the changeover portion is flowed, the eddy flow section is connected with the lower cone 2, the changeover portion and the air inlet
House steward 3 connects.The eddy flow section of air intake branch 4 is horizontally disposed with.
The air intake branch 4 is carried out reducing by the present embodiment in exit, pipe diameter is reduced, so as to add air inlet
Branch pipe 4 makes the air-flow of rising form swirling eddy, can further extend air-flow in gravitational precipitator in the speed in exit
Residence time, strengthen dust removing effects.Due to the lifting of crossflow flowing velocity, make grit and grit in air, grit with
The collision effect of wall is strengthened, so as to strengthen the effect of settling to tiny grit.Meanwhile air inlet pipe eddy flow section level is set
Put, make the rotary thrust that formation is horizontal in lower cone 2, extra thrust up or down will not be produced, would not also be disturbed
Grit simply extends its time risen due to the normal sedimentation of inertia and gravity in gas uphill process.
Embodiment 3
As shown in Fig. 2 the high efficiency gravitational precipitator of the present embodiment includes shell of dust remover, air inlet pipe and escape pipe 6；Institute
Stating dedusting housing includes upper shell 1 and lower cone 2, and the bottom of upper shell 1 is arranged on inside lower cone 2, on the upper shell 1
Portion is arranged on outside lower cone 2；The air inlet pipe includes inlet manifold 3 and two air intake branches 4,5, the inlet manifold 3 with
The upper shell 1 connects, and two air intake branches 4,5 one end connect with the inlet manifold 3, two air intake branches 4,
5 other ends connect with the opposite sides of lower cone 2 respectively, and the air intake branch 4,5 connects with the bias of lower cone 2, from
The gas cyclone direction that two air intake branches 4,5 enter the lower cone 2 is identical；The escape pipe 6 is upper with the lower cone 2
Portion connects, and the height of the escape pipe 6 and the junction of lower cone 2 is higher than the bottom of the upper shell 1.
The high efficiency gravitational precipitator of the present embodiment sets winding pipe in the opposite sides of lower cone 2, can be formed more
Strong swirling eddy, make dust removing effects more preferably.
Embodiment 4
On the basis of above-described embodiment, the bottom side height of the air intake branch 4 is high not less than the bottom of the upper shell 1
Degree.The air intake branch 4 and the axis of the junction of lower cone 2 are air inlet axis, the air inlet axis and the lower cone 2
The distance of the intersection point of inwall to the axis of lower cone 2 is air inlet radius, and the distance of the air inlet axis and the axis of upper shell 1 is big
In the upper shell 1 and the radius sum of air intake branch 4, less than the difference of the air inlet radius and the radius of the air intake branch 4.
The high efficiency gravitational precipitator of the present embodiment makes the air-flow of air intake branch 4 along between the upper shell 1 and lower cone 2
Annulus in export, it is easier to form swirling eddy, meanwhile, the restriction of distance between air intake branch 4 and the axis of lower cone 2
The air current flow direction of air inlet pipe can be made to avoid the outer of upper shell 1 towards in the space between upper shell 1 and lower cone 2
Stop of the inwall of wall or lower cone 2 to air-flow, the good choosing of shape can be formed and turn air-flow, make dust removing effects more preferable.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto is any to be familiar with sheet
Those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in should all be covered
Within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by the protection domain that claim is defined.
Claims (4)
- A kind of 1. high efficiency gravitational precipitator, it is characterised in that：Including shell of dust remover, air inlet pipe and escape pipe；The dedusting Housing includes upper shell and lower cone, and the upper shell bottom is arranged on inside lower cone, and the upper shell top is arranged on down Outside cone；The air inlet pipe includes inlet manifold and an at least air intake branch, and the inlet manifold connects with the upper shell Connect, described air intake branch one end connects with the inlet manifold, and the air intake branch other end connects with the lower cone, described Air intake branch connects with lower cone bias；The escape pipe connects with the top of the lower cone, the escape pipe and institute State bottom height of the height higher than the upper shell of lower cone junction；Bottom height of the bottom side height of the air intake branch not less than the upper shell；The axis of the air intake branch and the lower cone junction be air inlet axis, in the air inlet axis and the lower cone The distance of the intersection point of wall to lower cone axis is air inlet radius, and the distance of the air inlet axis and the upper shell axis is more than institute Upper shell and the air intake branch radius sum are stated, less than the difference of the air inlet radius and the air intake branch radius.
- 2. high efficiency gravitational precipitator as claimed in claim 1, it is characterised in that：The air intake branch includes changeover portion and eddy flow Section, the eddy flow section diameter are less than the diameter of the changeover portion, and the eddy flow section is connected with the lower cone, the changeover portion and Inlet manifold's connection.
- 3. high efficiency gravitational precipitator as claimed in claim 1, it is characterised in that：The air inlet pipe includes two air intake branches, Two air intake branches are connected with the lower cone opposite sides respectively, and the gas of the lower cone is entered from two air intake branches Body eddy flow direction is identical.
- 4. high efficiency gravitational precipitator as claimed in claim 2, it is characterised in that：The air intake branch eddy flow section is horizontally disposed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510919215.8A CN105536359B (en) | 2015-12-11 | 2015-12-11 | High efficiency gravitational precipitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510919215.8A CN105536359B (en) | 2015-12-11 | 2015-12-11 | High efficiency gravitational precipitator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105536359A CN105536359A (en) | 2016-05-04 |
| CN105536359B true CN105536359B (en) | 2018-03-02 |
Family
ID=55816209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510919215.8A Active CN105536359B (en) | 2015-12-11 | 2015-12-11 | High efficiency gravitational precipitator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105536359B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304557B (en) * | 2021-04-30 | 2022-05-13 | 成都易态科技有限公司 | Dust removal system and dust removal method for primary flue gas of converter steelmaking |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04298278A (en) * | 1991-03-27 | 1992-10-22 | Kawasaki Steel Corp | Treatment of blast furnace dust |
| CN2763284Y (en) * | 2004-12-28 | 2006-03-08 | 首钢总公司 | Gravity type dust collector for blast-furnace gas |
| CN2791061Y (en) * | 2005-01-18 | 2006-06-28 | 赵正清 | Dust collector for blast furnace |
| CN103933786B (en) * | 2014-04-04 | 2017-01-25 | 莱芜钢铁集团有限公司 | Gravity dust collector |
| CN205199137U (en) * | 2015-12-11 | 2016-05-04 | 中冶华天南京工业炉有限公司 | High efficiency gravitational precipitator |
-
2015
- 2015-12-11 CN CN201510919215.8A patent/CN105536359B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105536359A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204093815U (en) | Colliery dust collecting | |
| CN201899951U (en) | Combined dust removal and environment protection equipment for flue gas of smelting furnace | |
| CN204601912U (en) | A kind of intelligent waste gas dust-removal device | |
| CN206540401U (en) | A kind of high-efficiency drying apparatus of mixer slag | |
| CN206064647U (en) | A kind of cyclone dust remover of blast furnace | |
| CN104888571A (en) | Industrial flue gas dust removal device | |
| CN202667015U (en) | Cyclone dust extractor with continuous spiral ribs on inner wall | |
| CN101721175B (en) | Bag type dust collector with novel air inlet mode and airflow distribution structure | |
| CN205188329U (en) | Blast furnace gas rough cleaner | |
| CN105536359B (en) | High efficiency gravitational precipitator | |
| CN205199137U (en) | High efficiency gravitational precipitator | |
| CN201175682Y (en) | Double-cylinder centrifugation frequency-changing static granule preprocessor | |
| CN201558749U (en) | Cyclone dust collector | |
| CN201371085Y (en) | Cyclone separation dust removing device | |
| CN2358345Y (en) | Vertical flowing particle layer fume remover | |
| CN203155402U (en) | Backspin cyclone dust collector and smoke atomization desulfuration equipment | |
| CN204952542U (en) | Novel frit stove flue gas dust removal device | |
| CN201543343U (en) | Bag type dust collector with novel gas intake mode and novel airflow distribution structure | |
| CN201848321U (en) | Axial shunt-type cyclone and cyclone separator | |
| CN104084031A (en) | A flue gas purification device of a lime shaft kiln adopting soft coal as fuel | |
| CN205988640U (en) | The charged ultrapurification plant of mist formula | |
| CN201543512U (en) | Cyclone dust cleaner device | |
| CN204891506U (en) | Aluminium is multiple -effect dust collector for lime -ash | |
| CN203935776U (en) | A kind of lime shaft kiln smoke eliminator that is fuel with bituminous coal | |
| CN202667013U (en) | Cyclone dust extractor capable of changing gas flow state |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161213 Address after: 243005 Hunan West Road, Anhui, China, No. 699, No. Applicant after: Huatian Engineering & Technology Corporation, MCC Address before: Jianye District of Nanjing City, Jiangsu province 210019 the Fuchun River Street No. 18 Applicant before: Nanjing Industrial Furnace Co., Ltd., HTC |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |