CN201183802Y - Blast furnace taphole side-suction dust removal device - Google Patents
Blast furnace taphole side-suction dust removal device Download PDFInfo
- Publication number
- CN201183802Y CN201183802Y CNU2008200118380U CN200820011838U CN201183802Y CN 201183802 Y CN201183802 Y CN 201183802Y CN U2008200118380 U CNU2008200118380 U CN U2008200118380U CN 200820011838 U CN200820011838 U CN 200820011838U CN 201183802 Y CN201183802 Y CN 201183802Y
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- CN
- China
- Prior art keywords
- pipe
- dust
- suction
- orifice
- blast furnace
- 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.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 title claims abstract description 61
- 238000004140 cleaning Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 22
- 229910052742 iron Inorganic materials 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Blast Furnaces (AREA)
Abstract
The utility model relates to a blast furnace taphole side-suction dust removal device, which mainly comprises a left side dust-suction pipe and a right side dust-suction pipe, wherein the pipe orifice of the left side dust-suction pipe is an oblique orifice, and the included angle between the pipe orifice oblique plane and the horizontal line is 30-60 degrees; the diameter of the pipe orifice section of the right side dust suction and removal pipe is slightly larger than that of the rear section of the right side dust suction and removal pipe; and a sealing device is arranged between the left dust suction and removal pipe and the blast furnace taphole. Because the pipe orifice of the left side dust suction and removal pipe is changed from a straight orifice to an oblique orifice, the area of the pipe orifice is increased, the direct dust suction is changed into oblique dust suction, and the air inlet direction is adjusted from horizontal to oblique downward dust suction. And the diameter of the pipe orifice section of the right dust suction and removal pipe is larger than that of the rear section of the right dust suction and removal pipe, so that the area of the pipe orifice is increased, and the dust suction effect is improved. The sealing device seals the dust near the taphole and prevents the dust from overflowing. The dust absorption amount can be improved by more than 30 percent, and the emission reaching the standard is ensured.
Description
Technical field
The utility model belongs to metallurgical environmental protection equipment, the employed side draught cleaning apparatus of particularly a kind of blast furnace taphole zone dedusting.
Background technology
When iron-smelting blast furnace tapped a blast furnace, near the dust the iron mouth was very serious, all is provided with certain dust removal installation for preventing to pollute.At present, the blast furnace taphole zone is generally adopted the top dedusting and is implemented the method for dust removal of side draught in the Tie Kou both sides, the method that combines with side draught is inhaled on this top makes near the dust of iron mouth at first carry out the side draught dedusting through the side draught pipe of Tie Kou both sides, and remaining dust siphons away by the cleaning apparatus on top again.
But in the blast furnace actual production, the dust separating effect of iron mouth is unsatisfactory.Especially tap a blast furnace initial stage and when tapping a blast furnace latter stage when the iron mouth, a large amount of dust are discharged from the iron mouth, because Dust Capacity is excessive, iron oral-lateral energy-absorbing power deficiency makes the part dust overflow from the Tie Kou both sides, not only causes discharging to exceed standard, and serious environment pollution.Find that through long-term observation cause the unfavorable reason of iron oral-lateral absorption dirt effect to be: the mouth of pipe of side draught dust removing tube is straight mouthful, and the air draught area is little; And air suction inlet air intake direction is undesirable to be two major causes that cause dust removing effects bad.And bottom iron mouth one side of left side suction dust removing tube does not have complete closed, then is the secondary cause that influences dust removing effects.
Summary of the invention
The purpose of this utility model is exactly in order to eliminate above-mentioned drawback, and it is simple to aim to provide a kind of method, reasonable in design, can significantly improve whole pick-up performance, guarantees that the iron mouth dust that taps a blast furnace in the process is not excessive, realizes the side draught cleaning apparatus of qualified discharge.
For this reason, technical solution of the present utility model is:
This blast furnace taphole side draught cleaning apparatus comprises that dust removing tube is inhaled in the left side and dust removing tube is inhaled on the right side, it is characterized in that the mouth of pipe that dust removing tube is inhaled in the left side is an angle; The diameter of the mouth of pipe section diameter of dust removing tube greater than its back segment inhaled on the right side; Between left side suction dust removing tube and blast furnace taphole, be provided with enclosing wall.
The angle of inclination that the mouth of pipe angle of dust removing tube is inhaled in described left side is: the angle between mouth of pipe inclined-plane and the sea line is 30 °～60 °.
The beneficial effects of the utility model are:
Owing to the mouth of pipe of the left side being inhaled dust removing tube changes angle into by straight mouthful, be equivalent to increase greatly the orifice area that dust removing tube is inhaled in the left side, will directly inhale simultaneously and make oblique suction into, making the air intake direction is certainly down to tiltedly going up dust suction by horizontal adjustment.Because the diameter of the mouth of pipe section diameter of dust removing tube greater than its back segment inhaled on the right side, the orifice area that directly contacts with dust is increased, improved pick-up performance.The former bottom that communicates with the iron mouth of dust removing tube is inhaled in the left side set up enclosing wall, improved suction relatively, prevented flour dust overflow.Through practical application and measuring and calculating, the utility model can improve the dust suction amount more than 30%, has guaranteed qualified discharge, has greatly improved site work environment and Air quality.In addition, the utility model is owing to can original side draught dust removal installation being reequiped according to on-site actual situations, and is therefore both simple and easy to do, saves material and investment again.
Description of drawings
Accompanying drawing is a blast furnace taphole side draught cleaning apparatus structural representation.
Among the figure: 1 for inhaling dust removing tube in the left side, and 2 for inhaling the dust removing tube angle in the left side, and 3 for inhaling dust removing tube mouth of pipe section in the right side, and 4 are right side suction dust removing tube, and 5 is blast furnace taphole, and 6 for increasing enclosed appts newly, 7 original enclosed apptss.
Embodiment
The utility model is described in further detail in conjunction with the accompanying drawings.
By accompanying drawing as seen, this blast furnace taphole side draught cleaning apparatus is mainly inhaled dust removing tube 1 by the left side and right side suction dust removing tube 4 is constituted, and it is separately positioned on the and arranged on left and right sides of blast furnace taphole 5.The left side is inhaled the mouth of pipe design of dust removing tube 1 and is made as angle 2; The inclination angle of angle 2 is generally: the angle between mouth of pipe inclined-plane and the sea line is 30 °～60 °, and the angle of recommendation is 45 °.
The enlarged diameter of the mouth of pipe section 3 of dust removing tube 4 is inhaled on the right side, and making it is the vertical caliber of section in the accompanying drawing greater than back segment; But both diameter differences should not be too big, and the diameter of general mouth of pipe section 3 should not surpass 1.2 times of its back segment diameter, in order to avoid influence pick-up performance.
Inhale dust removing tube 1 in the left side enclosed appts 6 is set between blast furnace taphole 5, make it jointly dust to be covered, to prevent flour dust overflow with near blast furnace taphole 5 original enclosed apptss 7.Enclosed appts 6 can be built by laying bricks or stones with refractory brick or refractory materials etc., and also available iron plate adds materials such as spray material and is made.
Claims (2)
1, a kind of blast furnace taphole side draught cleaning apparatus comprises that dust removing tube is inhaled in the left side and dust removing tube is inhaled on the right side, it is characterized in that the mouth of pipe that dust removing tube is inhaled in the left side is an angle, and the diameter of the mouth of pipe section diameter of dust removing tube greater than its back segment inhaled on the right side; Between left side suction dust removing tube and blast furnace taphole, be provided with enclosed appts.
2, blast furnace taphole side draught cleaning apparatus according to claim 1 is characterized in that, the angle of inclination that the mouth of pipe angle of dust removing tube is inhaled in described left side is: the angle between mouth of pipe inclined-plane and the sea line is 30 °～60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200118380U CN201183802Y (en) | 2008-03-31 | 2008-03-31 | Blast furnace taphole side-suction dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200118380U CN201183802Y (en) | 2008-03-31 | 2008-03-31 | Blast furnace taphole side-suction dust removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201183802Y true CN201183802Y (en) | 2009-01-21 |
Family
ID=40271538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200118380U Expired - Fee Related CN201183802Y (en) | 2008-03-31 | 2008-03-31 | Blast furnace taphole side-suction dust removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201183802Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586522A (en) * | 2012-02-29 | 2012-07-18 | 中冶南方工程技术有限公司 | Dust hood for blast furnace tap hole |
-
2008
- 2008-03-31 CN CNU2008200118380U patent/CN201183802Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102586522A (en) * | 2012-02-29 | 2012-07-18 | 中冶南方工程技术有限公司 | Dust hood for blast furnace tap hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20140331 |