CN2459604Y - Front end support for straight blowing pipe of blast furnace - Google Patents
Front end support for straight blowing pipe of blast furnace Download PDFInfo
- Publication number
- CN2459604Y CN2459604Y CN 00225759 CN00225759U CN2459604Y CN 2459604 Y CN2459604 Y CN 2459604Y CN 00225759 CN00225759 CN 00225759 CN 00225759 U CN00225759 U CN 00225759U CN 2459604 Y CN2459604 Y CN 2459604Y
- Authority
- CN
- China
- Prior art keywords
- blowing pipe
- supporting piece
- straight blowing
- belly pipe
- circumferential
- 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
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Abstract
The utility model discloses a supporting device for the front end of a straight blowing pipe of a blast furnace. The utility model is composed of a longitudinal supporting piece and a circumferential supporting piece, wherein, the longitudinal support piece forms a right-angled triangle shape; the circumferential supporting piece forms an arc shape; the longitudinal supporting piece and the circumferential supporting piece are connected via a T-shaped structure. The supporting device is arranged under the front end of the straight blowing pipe adjacent to a small sleeve of a tuyere to bear the weight of the front end of the straight blowing pipe and to ensure that the spherical surface of the front end of the straight blowing pipe and the spherical surface of the small sleeve of the tuyere are favorably fit without the need of correction with external force applied. The supporting device with the structure for the straight blowing pipe has the advantage that the utility model has quick installation but no leakage, and can extend the service life of the straight blowing pipe.
Description
The utility model relates to a kind of device that is applied to the preceding end bearing of metallurgy high furnace belly pipe, belongs to the C21B7/16 class.
Before the utility model, the two ends of metallurgy high furnace belly pipe are to contact with tuyere small sleeve and elbow respectively with spherical shape, and its relies on the pressure of pull bar that belly pipe is joined in the tuyere small sleeve inner tight to keep sealing.Though the belly pipe of this structural shape can guarantee to enter high furnace chamber, the following problem of this belly pipe ubiquity: 1. leak out easily and scaling loss from the hot blast that hotblast stove comes.Because whole belly pipe only depends on the point on elbow and the air port sphere to support, and is in a kind of vacant state.When blast furnace through behind repeatedly the damping down and multiple wind several times, owing to expanding with heat and contract with cold or reason such as pressure is not enough, belly pipe sinks and produces and leak out from tuyere small sleeve sphere centre line under action of gravity, cause a large amount of hot blasts to be run out of outside the stove, not only waste energy and power, and produce huge sound pollution.Also because the washing away and oxygenizement of high temperature gas flow, belly pipe is easy to be forced blast furnace staying by scaling loss simultaneously; 2. because belly pipe is unsettled installation, and the air port sleeving inner space is narrow and small again, so the belly pipe front end is difficult to contraposition when assembling, assembly precision is difficult to guarantee, and wastes time and energy.Difficult method and the relevant report that finds head it off from present production practice and documents and materials.
Task to be solved in the utility model provides a kind of novel blast-furnace belly pipe front end supporting device that can assemble, have again the leakproof effect fast.Mainly by traditional belly pipe is only changed into the preceding supporting structure shape of belly pipe in tuyere small sleeve by point-contact junction configuration shape on elbow and the air port sphere.Before this supporting type directly blow the support tube device, simple in structure, practical, assembling fast is difficult for scaling loss.
For realizing that the technical scheme that above-mentioned task adopts is: near the front end of tuyere small sleeve a belly pipe supporting device is installed at the blast furnace belly pipe, this supporting device is made of circumferential rest pad and longitudinal supporting piece, the circumferential curved shape of rest pad, the rectangular triangular shape of longitudinal supporting piece.Circumferentially be between rest pad and the longitudinal supporting piece that " T " font is staggered to be connected.Circumferentially an end of rest pad is connected with belly pipe, and the other end contacts with cover inwall in the air port.A square edge of longitudinal supporting piece is connected with circumferential rest pad, and another square edge is connected with the outer wall of belly pipe.
Adopt the as above belly pipe supporting device of technical scheme formation, its beneficial effect is: 1. quick for installation, it can guarantee voluntarily that the height of its belly pipe front end and tuyere small sleeve match during installation, need not adopt other aligning tool; 2. prevent to leak out, it can remain contacting of belly pipe front end sphere and tuyere small sleeve sphere, can not drop to produce and leak out; 3. can prolong straight tube work-ing life between 20-30%; 4. save energy, reduce noise ...
Below in conjunction with accompanying drawing specific embodiments of the present utility model is described in further detail.
Fig. 1 is a cross-sectional schematic of the present utility model, also is specification digest accompanying drawing of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to synoptic diagram.
As shown in Figure 1, the front end at blast furnace belly pipe 1 close tuyere small sleeve 2 is the staggered formation of " T " font belly pipe supporting device.This device is made of longitudinal supporting piece 3 and circumferential rest pad 4, and longitudinal supporting piece 3 rectangular triangular shapes, circumferentially rest pad 4 curved shapes.A square edge of longitudinal supporting piece 3 is connected with circumferential rest pad 4, and another square edge is connected with the outer wall of belly pipe 1.Circumferentially an end of rest pad 4 is connected with the outer wall in overlapping 5 sections in belly pipe 1 and the air port, and the other end contacts with the inwall that overlaps 5 in the air port, guarantees during assembling that the sphere of blast furnace belly pipe front end sphere and tuyere small sleeve coincide well.
In addition to the implementation, also circumferential rest pad 4 can be made into toroidal.
Claims (1)
1, a kind of blast furnace belly pipe front end supporting device, constitute by longitudinal supporting piece (3), circumferential rest pad (4), it is characterized in that at right angles triangular shape of longitudinal supporting piece (3), the circumferential curved shape of rest pad (4), be connected with " T " font structure between longitudinal supporting piece (3) and the circumferential rest pad (4), a square edge of longitudinal supporting piece (3) is connected with circumferential rest pad (4), the outer wall of another square edge and belly pipe (1) is connected, circumferentially an end and the belly pipe (1) of rest pad (4) are connected, and its other end contacts with the inwall that overlaps (5) in the air port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00225759 CN2459604Y (en) | 2000-10-08 | 2000-10-08 | Front end support for straight blowing pipe of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00225759 CN2459604Y (en) | 2000-10-08 | 2000-10-08 | Front end support for straight blowing pipe of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2459604Y true CN2459604Y (en) | 2001-11-14 |
Family
ID=33589786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00225759 Expired - Fee Related CN2459604Y (en) | 2000-10-08 | 2000-10-08 | Front end support for straight blowing pipe of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2459604Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270873B (en) * | 2007-03-23 | 2011-06-15 | 宝山钢铁股份有限公司 | Method and device for blowing breeze to pure oxygen smelting mobile filling bed smelting furnace |
| CN103088173A (en) * | 2011-11-01 | 2013-05-08 | 张昭贵 | Blast furnace coal injection device, and mounting and operating methods thereof |
-
2000
- 2000-10-08 CN CN 00225759 patent/CN2459604Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101270873B (en) * | 2007-03-23 | 2011-06-15 | 宝山钢铁股份有限公司 | Method and device for blowing breeze to pure oxygen smelting mobile filling bed smelting furnace |
| CN103088173A (en) * | 2011-11-01 | 2013-05-08 | 张昭贵 | Blast furnace coal injection device, and mounting and operating methods thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |