CN105536359A - High-efficiency gravity dust remover - Google Patents
High-efficiency gravity dust remover Download PDFInfo
- Publication number
- CN105536359A CN105536359A CN201510919215.8A CN201510919215A CN105536359A CN 105536359 A CN105536359 A CN 105536359A CN 201510919215 A CN201510919215 A CN 201510919215A CN 105536359 A CN105536359 A CN 105536359A
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- CN
- China
- Prior art keywords
- lower cone
- air intake
- intake branch
- upper shell
- pipe
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cyclones (AREA)
Abstract
The invention discloses a high-efficiency gravity dust remover, mainly aims at the problem that a gravity dust remover of the prior art cannot meet the needs of dust removal of blast furnace coal gas, and provides the high-efficiency gravity dust remover which comprises a dust remover shell body, a gas inlet pipe and a gas outlet pipe; the dust remover shell body comprises an upper cylinder body and a lower cone; the lower part of the upper cylinder body is arranged inside the lower cone, and the upper part of the upper cylinder body is arranged outside the lower cone; the gas inlet pipe comprises a gas inlet header pipe and at least one gas inlet branched pipe, the gas inlet header pipe is connected with the upper cylinder body, one end of the gas inlet branched pipe communicates with the gas inlet header pipe, the other end of the gas inlet branched pipe communicates with the lower cone, and the gas inlet branched pipe eccentrically communicates with the lower cone; the gas outlet pipe communicates with the upper part of the lower cone, and the height of the connection part of the gas outlet pipe and the lower cone is higher than that of the bottom of the upper cylinder body. The dust removing effect of the gravity dust remover is improved, and small-size dust particles can be smoothly settled.
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, the course of work of blast furnace is as follows: the ore processed through processing, coke and flux are loaded by furnace roof according to a certain ratio in batches, hot blast blasts in stove by bottom house, with coke before air port of burning, make in stove, series of physical chemical reaction occur and produce molten iron.In blast furnace ironmaking process, due to the burning of coke and the generation of series of physical chemical reaction, inevitably produce a large amount of dust-laden gas-blast furnace gas.Along with improving constantly of twenties Nian Lai China rapid developments of economy and living standards of the people, the demand of ferrous materials is also constantly increased.And along with the increase of iron and steel production capacity, pollutant discharge amount sharply rises, consequent problem of environmental pollution, oneself further develops through becoming restriction China economy and society the big factors improved further with people's lives and the general level of the health.
In order to the environmental problem that the discharge reduced due to blast furnace gas causes, the dedusting of blast furnace gas process that must will draw in blast furnace, the dust in removing blast furnace gas.The gravitational precipitator ubiquity that at present each factory uses that structure is single, the position of gas inlet is reasonable not, and the flowing of air-flow in inside is abundant not, cannot make the dust granules defect such as sedimentation effectively.Along with dilatation and the transformation of iron and steel enterprise's blast furnace, original blast-furnace gas dedusting system can not meet dust removal requirement, therefore to the renewal of dust pelletizing system or transformation extremely urgent.
Summary of the invention
For the problems referred to above, the invention provides a kind of high efficiency gravitational precipitator, improve the efficiency of dust collection of gravitational precipitator.
For achieving the above object, high efficiency gravitational precipitator of the present invention comprises shell of dust remover, air inlet pipe and escape pipe; Described dedusting housing comprises upper shell and lower cone, and described upper shell bottom is arranged on lower cone inside, and described upper shell top is arranged on lower cone outside; Described air inlet pipe comprises inlet manifold and at least one air intake branch, described inlet manifold is connected with described upper shell, described air intake branch one end is communicated with described inlet manifold, and the described air intake branch other end is communicated with described lower cone, and described air intake branch is communicated with described lower cone bias; Described escape pipe is communicated with the top of described lower cone, and the mouth of pipe height of described escape pipe and described lower cone junction is higher than the bottom height of described upper shell.
Further, described air intake branch comprises changeover portion and eddy flow section, and described eddy flow section diameter is less than the diameter of described changeover portion, and described eddy flow section is connected with described lower cone, and described changeover portion is connected with described inlet manifold.
Particularly, described air intake branch eddy flow section is horizontally disposed with.
Further, the bottom side height of described air intake branch is not less than the bottom height of described upper shell.
Particularly, the axis of described air intake branch and described lower cone junction is air inlet axis, the intersection point of described air inlet axis and described lower cone inwall is air inlet radius to the distance of lower cone axis, the distance of described air inlet axis and described upper shell axis is greater than described upper shell and described air intake branch radius sum, is less than the difference of described air inlet radius and described air intake branch radius.
Further, described air inlet pipe comprises two air intake branches, and described two air intake branches respectively both sides relative to described lower cone are communicated with, and the gas cyclone direction entering described lower cone from two air intake branches is identical.
High efficiency gravitational precipitator of the present invention draws arm in the inlet manifold of gravitational precipitator, crossflow is formed in deduster lower cone, the horizontal of air-flow blows the interaction strengthening particle and particle, particle and wall, not only can significantly improve the efficiency of dust collection of deduster, can also make tiny grit also can be clear smoothly.Air-flow forms swirling eddy in uphill process, thus extends the time of staying of air-flow at gravitational precipitator, and particle speed can decline gradually, moves, facilitate the gas solid separation of gravitational precipitator under the effect of gravity and inertia bottom deduster.
Accompanying drawing explanation
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.
Detailed description of the invention
Below in conjunction with 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 comprises shell of dust remover, air inlet pipe and escape pipe 6; Described dedusting housing comprises upper shell 1 and lower cone 2, and it is inner that described upper shell 1 bottom is arranged on lower cone 2, and it is outside that described upper shell 1 top is arranged on lower cone 2; Described air inlet pipe comprises inlet manifold 3 and air intake branch 4, described inlet manifold 3 is connected with described upper shell 1, described air intake branch 4 one end is communicated with described inlet manifold 3, and described air intake branch 4 other end is communicated with described lower cone 2, and described air intake branch 4 is communicated with described lower cone 2 bias; Described escape pipe 6 is communicated with the top of described lower cone 2, and the height of described escape pipe 6 and described lower cone 2 junction is higher than the bottom of described upper shell 1.
The present embodiment high efficiency gravitational precipitator draws air intake arm from air intake house steward, crossflow is formed in deduster lower cone 2, the horizontal of air-flow blows the interaction strengthening particle and particle, particle and wall, not only can significantly improve the efficiency of dust collection of deduster, can also make tiny grit also can be clear smoothly.Because air intake branch 4 is communicated with lower cone 2 bias, horizontal blowing gas stream can make air-flow form swirling eddy in uphill process, thus extend the time of staying of air-flow at gravitational precipitator, particle speed can decline gradually, move bottom deduster under the effect of gravity and inertia, facilitate the gas solid separation of gravitational precipitator.
Embodiment 2
On the basis of above-described embodiment, as shown in Figure 2, described air intake branch 4 comprises changeover portion and eddy flow section, and described eddy flow section diameter is less than the diameter of described changeover portion, and described eddy flow section is connected with described lower cone 2, and described changeover portion is connected with described inlet manifold 3.Described air intake branch 4 eddy flow section is horizontally disposed with.
Described air intake branch 4 is carried out reducing in exit by the present embodiment, pipe diameter is reduced, thus adds the speed of air intake branch 4 in exit, make the air-flow of rising form swirling eddy, the time of staying of air-flow in gravitational precipitator can be extended further, strengthen dust removing effects.Due to the lifting of crossflow flowing velocity, the collision effect of grit and grit, grit and wall in air is strengthened, thus the effect of settling to tiny grit can be strengthened.Simultaneously, air inlet pipe eddy flow section is horizontally disposed with, and makes the rotary thrust of formation level in lower cone 2, can not produce extra thrust up or down, also grit would not be disturbed due to the normal sedimentation of inertia and gravity, in gas uphill process, just extend the time that it rises.
Embodiment 3
As shown in Figure 2, the high efficiency gravitational precipitator of the present embodiment comprises shell of dust remover, air inlet pipe and escape pipe 6; Described dedusting housing comprises upper shell 1 and lower cone 2, and it is inner that described upper shell 1 bottom is arranged on lower cone 2, and it is outside that described upper shell 1 top is arranged on lower cone 2; Described air inlet pipe comprises inlet manifold 3 and two air intake branches 4,5, described inlet manifold 3 is connected with described upper shell 1, described two air intake branches 4,5 one end is communicated with described inlet manifold 3, described two air intake branches 4,5 other end is communicated with the described relative both sides of lower cone 2 respectively, described air intake branch 4,5 is communicated with described lower cone 2 bias, and the gas cyclone direction entering described lower cone 2 from two air intake branches 4,5 is identical; Described escape pipe 6 is communicated with the top of described lower cone 2, and the height of described escape pipe 6 and described lower cone 2 junction is higher than the bottom of described upper shell 1.
The high efficiency gravitational precipitator of the present embodiment arranges air intake arm in the relative both sides of lower cone 2, can form stronger swirling eddy, make dust removing effects better.
Embodiment 4
On the basis of above-described embodiment, the bottom side height of described air intake branch 4 is not less than the bottom height of described upper shell 1.Described air intake branch 4 is air inlet axis with the axis of described lower cone 2 junction, the intersection point of described air inlet axis and described lower cone 2 inwall is air inlet radius to the distance of lower cone 2 axis, the distance of described air inlet axis and described upper shell 1 axis is greater than described upper shell 1 and described air intake branch 4 radius sum, is less than the difference of described air inlet radius and described air intake branch 4 radius.
The high efficiency gravitational precipitator of the present embodiment makes the air-flow of air intake branch 4 derive along in the annulus between described upper shell 1 and lower cone 2, more easily form swirling eddy, simultaneously, the restriction of the spacing of air intake branch 4 and lower cone 2 axis can make the air current flow direction of air inlet pipe towards in the space between upper shell 1 and lower cone 2, the inwall of the outer wall or lower cone 2 that avoid upper shell 1 is to the stop of air-flow, the choosing that can form shape good turns air-flow, makes dust removing effects better.
Above; be only preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should define with claim is as the criterion.
Claims (6)
1. a high efficiency gravitational precipitator, is characterized in that: comprise shell of dust remover, air inlet pipe and escape pipe; Described dedusting housing comprises upper shell and lower cone, and described upper shell bottom is arranged on lower cone inside, and described upper shell top is arranged on lower cone outside; Described air inlet pipe comprises inlet manifold and at least one air intake branch, described inlet manifold is connected with described upper shell, described air intake branch one end is communicated with described inlet manifold, and the described air intake branch other end is communicated with described lower cone, and described air intake branch is communicated with described lower cone bias; Described escape pipe is communicated with the top of described lower cone, and the height of described escape pipe and described lower cone junction is higher than the bottom height of described upper shell.
2. high efficiency gravitational precipitator as claimed in claim 1, it is characterized in that: described air intake branch comprises changeover portion and eddy flow section, described eddy flow section diameter is less than the diameter of described changeover portion, and described eddy flow section is connected with described lower cone, and described changeover portion is connected with described inlet manifold.
3. high efficiency gravitational precipitator as claimed in claim 1, is characterized in that: the bottom side height of described air intake branch is not less than the bottom height of described upper shell.
4. high efficiency gravitational precipitator as claimed in claim 1, it is characterized in that: described air inlet pipe comprises two air intake branches, described two air intake branches respectively both sides relative to described lower cone are communicated with, and the gas cyclone direction entering described lower cone from two air intake branches is identical.
5. high efficiency gravitational precipitator as claimed in claim 2, is characterized in that: described air intake branch eddy flow section is horizontally disposed with.
6. high efficiency gravitational precipitator as claimed in claim 3, it is characterized in that: the axis of described air intake branch and described lower cone junction is air inlet axis, the intersection point of described air inlet axis and described lower cone inwall is air inlet radius to the distance of lower cone axis, the distance of described air inlet axis and described upper shell axis is greater than described upper shell and described air intake branch radius sum, is less than the difference of described air inlet radius and described air intake branch radius.
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 |
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| Publication Number | Publication Date |
|---|---|
| CN105536359A true CN105536359A (en) | 2016-05-04 |
| CN105536359B CN105536359B (en) | 2018-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510919215.8A Active CN105536359B (en) | 2015-12-11 | 2015-12-11 | High efficiency gravitational precipitator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304557A (en) * | 2021-04-30 | 2021-08-27 | 成都易态科技有限公司 | Dust removal system and dust removal method for primary flue gas of converter steelmaking |
Citations (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 |
| CN103933786A (en) * | 2014-04-04 | 2014-07-23 | 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
Patent Citations (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 |
| CN103933786A (en) * | 2014-04-04 | 2014-07-23 | 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 |
Non-Patent Citations (1)
| Title |
|---|
| 王纯等: "《除尘设备手册》", 30 September 2009, 北京：化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304557A (en) * | 2021-04-30 | 2021-08-27 | 成都易态科技有限公司 | Dust removal system and dust removal method for primary flue gas of converter steelmaking |
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| CN105536359B (en) | 2018-03-02 |
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| 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 |
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