CN203307362U - Gravitational dust-removing system in blast furnace system - Google Patents
Gravitational dust-removing system in blast furnace system Download PDFInfo
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- CN203307362U CN203307362U CN2013204085654U CN201320408565U CN203307362U CN 203307362 U CN203307362 U CN 203307362U CN 2013204085654 U CN2013204085654 U CN 2013204085654U CN 201320408565 U CN201320408565 U CN 201320408565U CN 203307362 U CN203307362 U CN 203307362U
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a gravitational dust-removing system in a blast furnace system and belongs to the field of dust removal of the blast furnace system. The gravitational dust-removing system comprises a gas rising pipe and a gravitational dust remover leading-out pipe and also comprises a falling pipe, wherein the falling pipe comprises a main pipeline and two positioning pipelines, wherein the positioning pipelines are respectively positioned at the two ends of the main pipeline, the outer diameter of each positioning pipeline is less than that of the main pipeline, and the outer surfaces of the connecting positions of the positioning pipelines and the main pipeline are stepped; the outer diameter of the main pipeline is respectively as the same as that of the gas rising pipe and that of the gravitational dust remover leading-out pipe; the outer diameter of the positioning pipeline is respectively as the same as that of the gas rising pipe and that of the gravitational dust remover leading-out pipe. The positioning pipelines are 5-30mm in length and 0.5-1.5mm in thickness. The gravitational dust-removing system disclosed by the utility model can effectively avoid the phenomenon of weld penetration of the pipelines in the gravitational dust remover leading-out pipe, effectively improve the dust removing effect of the blast furnace system and the welding quality of welding seams, and is simple in structure, convenient to use, reasonable and ingenious in design and easy to manufacture and the like.
Description
Technical field
The utility model belongs to the dedusting field in blast furnace system, specifically, relates to the gravitational dust collection system in a kind of blast furnace system.
Background technology
In blast furnace ironmaking process, blast furnace expellant gas dust content is very high, directly uses and can block pipeline, and can cause the corrosion failure of the firebrick lining such as hotblast stove and burner.Therefore, the blast furnace gas use that just can act as a fuel after must dedusting.
The gravitational dust collection system is one of principal mode of blast furnace crude gas dedusting, mainly contains raw gas pipeline and gravitational precipitator two portions and forms, and wherein the raw gas pipeline is transported to gravitational precipitator to raw gas from blast furnace.And the raw gas pipeline can be divided into gas conduit, gas up take and three sections whole system gas export control one ends of coal gas downtake according to space trend and is supported on the raw gas steel platform of blast-furnace body, gravitational precipitator one end is fixed on the fly-ash separator platform.If structurally the gravitational dust collection system is regarded as to a large member, this member has connected with the blast-furnace body of raw gas platform and the concrete frame platform structure of supporting fly-ash separator.
From structure, consider, in the installation work of metallurgy industry ironmaking system, the gas up take of blast furnace system connected with being connected by downtake of gravitational precipitator delivery line, and the coal gas downtake should be unsuitable long, and namely the span of this beam section is not too big.And in Practical Project, due to the complicacy of ironmaking engineering and the place restriction of plant area, make the frequent location comparison of blast furnace and gravitational precipitator far away, cause the coal gas downtake stressed very unfavorable, easy burn-through pipeline when coal gas downtake and the joint weld of gravitational precipitator delivery line, cause pipeline gas leakage, then affect pipe safety, in prior art, the general mode of pipeline butt welding that adopts is welded in addition, adopt this mode coal gas downtake and gravitational precipitator delivery line interface easily by dust-laden coal gas, to be blown through, produce gas leak phenomenon.
China Patent No.: 201220659333.1, open day: on 06 12nd, 2013, the patent document that a name is called the butt compensator of aerial low pressure large-diameter pipeline is disclosed, this utility model is a kind of butt compensator of aerial low pressure large-diameter pipeline, it is characterized in that: this butt compensator is being installed respectively between gas up take and downtake and between gravitational precipitator delivery line and downtake, this butt compensator mainly is comprised of cover tiles and lower cover tile, this cover tiles is identical with the structure of lower cover tile, this cover tiles and lower cover tile are all cylindrical shells that cross section is the semicircle annular, and the inside radius of this cover tiles and lower cover tile is all identical with the outside radius of downtake, and the thickness of this cover tiles and lower cover tile all with the consistency of thickness of downtake, this cover tiles and corresponding fastening of lower cover tile are assembled, easy to use, safe and reliable, the aerial joint quality of downtake and the welding quality of butt weld have effectively been improved.But the method is easy burn-through pipeline when welding, under long-time running, be easy to occur pipeline crack, then cause pipeline gas leakage, affect pipe safety, and when in this patent, upper FE Tiler is with the difficult corresponding fastening assembling of lower FE Tiler, be prone to skew, thereby directly affect the pipeline joint quality.
Summary of the invention
The problem that 1, will solve
For gas up take in blast furnace system and gravitational precipitator, weld and be prone to the pipeline burn-through by downtake, then cause pipeline gas leakage, affect the problem of pipe safety, the utility model provides a kind of gravitational dust collection system of novel blast furnace system, the utility model can effectively be avoided the pipeline burn-through phenomenon occurred in the gravitational dust collection system, can effectively improve the welding quality of blast furnace system dust removing effects and welded seam.
2, technical scheme
For addressing the above problem, the utility model adopts following technical scheme.
A kind of gravitational dust collection system of blast furnace system, comprise gas up take, gravitational precipitator delivery line, also comprise downtake, described downtake comprises main pipe line and targeted duct, described targeted duct has two, lay respectively at the main pipe line two ends, the external diameter of targeted duct is less than the external diameter of main pipe line, and the outside surface of targeted duct and main pipe line junction is stepped; The external diameter of described main pipe line is all identical with the external diameter of the external diameter of gas up take, gravitational precipitator delivery line; The external diameter of described targeted duct is all identical with the internal diameter of the internal diameter of gas up take, gravitational precipitator delivery line.
Preferably, the length of described targeted duct is 5 ~ 30mm.
More preferably, the length of described targeted duct is 15mm.
Preferably, the thickness of described targeted duct is 0.5 ~ 1.5mm.
More preferably, the thickness of described targeted duct is 1mm.
During the actual use of the utility model, two sections positioning catheters are inserted respectively in gas up take and gravitational precipitator delivery line, then respectively main pipe line two ends and gas up take and gravitational precipitator delivery line are firmly welded by fillet weld.
3, beneficial effect
The beneficial effects of the utility model are:
(1) in the utility model, downtake comprises main pipe line and targeted duct, adopt the notch cuttype downtake, targeted duct has two, lay respectively at the main pipe line two ends, the external diameter of targeted duct is less than the external diameter of main pipe line, the outside surface of targeted duct and main pipe line junction is stepped, can effectively avoid the pipeline burn-through phenomenon occurred in the gravitational dust collection system;
(2) external diameter of the external diameter of the external diameter of the utility model main pipe line and gas up take, gravitational precipitator delivery line is all identical; The external diameter of targeted duct is all identical with the internal diameter of the internal diameter of gas up take, gravitational precipitator delivery line, can effectively improve the welding quality of blast furnace system dust removing effects and welded seam;
(3) the utility model adopts socket weld, can effectively avoid coal gas downtake and gravitational precipitator delivery line interface to be blown through phenomenon by dust-laden coal gas;
(4) the utility model is simple in structure, easy to use, reasonable in design ingenious, is easy to manufacture.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of downtake in the utility model.
Number in the figure explanation: 1, downtake; 2, gas up take; 3, gravitational precipitator delivery line; 11, main pipe line; 12, targeted duct.
Embodiment
For further understanding content of the present utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of gravitational dust collection system of blast furnace system, comprise gas up take 2, gravitational precipitator delivery line 3, also comprise downtake 1, this downtake 1 comprises main pipe line 11 and targeted duct 12, and targeted duct 12 has two, lays respectively at main pipe line 11 two ends, the external diameter of targeted duct 12 is less than the external diameter of main pipe line 11, and targeted duct 12 is stepped with the outside surface of main pipe line 11 junctions; Wherein the external diameter of the external diameter of the external diameter of main pipe line 11 and gas up take 2, gravitational precipitator delivery line 3 is all identical, and the internal diameter of the external diameter of targeted duct 12 and gas up take 2, the internal diameter of gravitational precipitator delivery line 3 are all identical.The length of targeted duct 12 is 15mm in addition, and thickness is 1mm.
During use, two sections positioning catheters 12 of downtake 1 are inserted respectively in gas up take 2 and gravitational precipitator delivery line 3, until main pipe line 11 two ends contact with gas up take 2 and gravitational precipitator delivery line 3 respectively, finally respectively main pipe line 11 two ends and gas up take 2 and gravitational precipitator delivery line 3 are firmly welded in socket welded mode.
With embodiment 1, difference is, the length of targeted duct 12 is 5mm, and thickness is 0.5mm.
With embodiment 1, difference is, the length of targeted duct 12 is 30mm, and thickness is 1.5mm.
Claims (5)
1. the gravitational dust collection system of a blast furnace system, comprise gas up take (2), gravitational precipitator delivery line (3), it is characterized in that: also comprise downtake (1), described downtake (1) comprises main pipe line (11) and targeted duct (12), described targeted duct (12) has two, lay respectively at main pipe line (11) two ends, the external diameter of targeted duct (12) is less than the external diameter of main pipe line (11), and targeted duct (12) is stepped with the outside surface of main pipe line (11) junction; The external diameter of described main pipe line (11) is all identical with the external diameter of the external diameter of gas up take (2), gravitational precipitator delivery line (3); The external diameter of described targeted duct (12) is all identical with the internal diameter of the internal diameter of gas up take (2), gravitational precipitator delivery line (3).
2. according to the gravitational dust collection system of claims 1 described a kind of blast furnace system, it is characterized in that: the length of described targeted duct (12) is 5 ~ 30mm.
3. according to the gravitational dust collection system of claims 2 described a kind of blast furnace systems, it is characterized in that: the length of described targeted duct (12) is 15mm.
4. according to the gravitational dust collection system of claims 1 described a kind of blast furnace system, it is characterized in that: the thickness of described targeted duct (12) is 0.5 ~ 1.5mm.
5. according to the gravitational dust collection system of claims 4 described a kind of blast furnace systems, it is characterized in that: the thickness of described targeted duct (12) is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204085654U CN203307362U (en) | 2013-07-10 | 2013-07-10 | Gravitational dust-removing system in blast furnace system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204085654U CN203307362U (en) | 2013-07-10 | 2013-07-10 | Gravitational dust-removing system in blast furnace system |
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| CN203307362U true CN203307362U (en) | 2013-11-27 |
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| CN2013204085654U Expired - Fee Related CN203307362U (en) | 2013-07-10 | 2013-07-10 | Gravitational dust-removing system in blast furnace system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156534A (en) * | 2020-01-21 | 2020-05-15 | 成都易态科技有限公司 | Dusty gas conveying pipeline and dusty gas conveying method |
-
2013
- 2013-07-10 CN CN2013204085654U patent/CN203307362U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111156534A (en) * | 2020-01-21 | 2020-05-15 | 成都易态科技有限公司 | Dusty gas conveying pipeline and dusty gas conveying method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20140710 |
|
| EXPY | Termination of patent right or utility model |