CN202898442U - Compositely-strengthened blast furnace top cloth chute - Google Patents
Compositely-strengthened blast furnace top cloth chute Download PDFInfo
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- CN202898442U CN202898442U CN 201220581889 CN201220581889U CN202898442U CN 202898442 U CN202898442 U CN 202898442U CN 201220581889 CN201220581889 CN 201220581889 CN 201220581889 U CN201220581889 U CN 201220581889U CN 202898442 U CN202898442 U CN 202898442U
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- chute
- blast furnace
- hard alloy
- furnace top
- plate
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Abstract
The utility model discloses a compositely-strengthened blast furnace top cloth chute. The compositely-strengthened blast furnace top cloth chute comprises a chute housing, wherein a chute bottom lining plate and chute side lining plates are mounted in the chute housing, inlayed into a press plate, a tail baffle and a front baffle and fixedly integrated with the chute housing through bolts; and the chute bottom lining plate and the chute side lining plates comprises chute lining plate substrates, protruded hard alloy blocks are uniformly distributed on the working surfaces of the chute lining plate substrates at intervals, a fusion covering alloy layer is further arranged at the working surfaces of the chute lining plate substrates at the clearance parts among intervals of the hard alloy blocks and integrally connected with the surfaces of the chute lining plate substrate and the hard alloy blocks. The compositely-strengthened blast furnace top cloth chute has the advantages that the structure is simple, the high-temperature impact wear is resisted, the temperature distortion is small, the cloth is smooth, the hard alloy blocks and the fusion covering alloy layers are metallurgically bonded, the bonding strength is large, and the service life of the cloth chute is prolonged.
Description
Technical field
The utility model belongs to technical field of metallurgical machinery, particularly a kind of material distribution chute on furnace top of blast furnace of complex intensifying.
Background technology
Distributor chute is the key equipment in the blast furnace system, and can distributor chute work directly affects blast furnace natural labor and ton rail fuel consumption.Since the impact of blast furnace high temperature, reducing atmosphere and material impact wearing and tearing, distributor chute ubiquity short problem in work-ing life.Existing distributor chute generally is comprised of body skin, wear-resistant chute liner plate, afterbody baffle plate, pressing plate, bolt and syndeton, wherein chute lining board is the main factor that determines the chute life-span, for addressing this problem, described wear-resistant chute liner plate generally is comprised of liner plate matrix, hardfacing alloy layer and syndeton.In order to improve the work-ing life of distributor chute, the lattice gear often is set in the wear-resistant chute liner plate, in order to form material dnockout and material abrasive construction, can find in actual use, because the mineral aggregate drop is large, it is serious to collapse material, practical effect is not obvious, and because the existence of a large amount of lattice gears, so that the distributor chute cloth is not smooth, affect the windrow quality, directly caused the capacity factor of a blast furnace to reduce.And, in actual use, because operating mode is abominable, the hardfacing alloy layer often owing to reasons such as high temperature oxidation, mineral aggregate gouging abrasion, corrosion, early failure even breakdown occurs easily, causes distributor chute to lose efficacy, cause blast furnace blowing-out maintenance, increased enterprise cost.The blast furnace ironmaking production practice to improve BF Productivity, reduce fuel consumption in the urgent need to a kind of high life, cloth Novel cloth chute smoothly.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes above-mentioned technology, and provides a kind of rational in infrastructure, and cloth is smooth and easy, shock-resistant wearing and tearing, the material distribution chute on furnace top of blast furnace of a kind of complex intensifying of resistance to high temperature oxidation.
The purpose of this utility model can be achieved through the following technical solutions: a kind of material distribution chute on furnace top of blast furnace of complex intensifying, comprise the chute housing, chute bottom lining plate and side plate are housed in it, this chute bottom lining plate and chute side plate are embedded on pressing plate, afterbody baffle plate, the anterior baffle plate, are fixed into one by bolt and chute housing; Wherein said chute bottom lining plate and chute side plate comprise the chute lining board matrix, on the working face of this chute lining board matrix by have uniformly at intervals the projection hard alloy blocks, the chute lining board matrix working face that is positioned at the position, space of each hard alloy blocks compartment also is provided with the cladding alloy layer, and this cladding alloy layer forms with chute lining board matrix face and hard alloy blocks respectively.
This novel described hard alloy blocks and chute lining board matrix can be fixed into one each other, or Split type structure, are bolted to be integral.
This novel described chute side plate is directly to dock with junction between the chute bottom lining plate, or connects into " U " type by the rectangle prionodont structure that has each other.
This novel described hard alloy blocks is cylindric, frustum, or ellipticity.
Be embedded with the bolt that is connected with the chute housing on this novel described chute lining board matrix.
The advantage that the utlity model has:
1, simple in structure, cloth is smooth, has reduced the consumption of fuel;
2, hard alloy blocks hardness is high, can reach more than the HRC85, adopts the screw fastening mode to fix, and the screw head cladding has alloy layer, has guaranteed the reliability that connects;
3, cladding alloy layer high temperature wear resistant excellent performance, excellent shock resistance, and form metallurgical binding with chute lining board matrix internal surface and hard alloy blocks, bonding strength is large, has realized complex intensifying, has prolonged the work-ing life of distributor chute.
Description of drawings
Fig. 1 is this novel overall schematic;
Fig. 2 is Fig. 1 chute side plate synoptic diagram;
Fig. 3 is that Fig. 2 A is to synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing embodiment, to this novel being described further.
The material distribution chute on furnace top of blast furnace of a kind of complex intensifying as shown in Figure 1 to Figure 3, comprise the chute housing 8 that is " U " type, these chute housing 8 interior bottom sides are equipped with chute bottom lining plate 2 and are positioned at the chute side plate of three end faces of chute side plate 3 compositions of both sides, and this chute bottom lining plate 2 and chute side plate 3 are embedded in the frame of pressing plate 4, afterbody baffle plate 5, anterior baffle plate 1.Its center platen 4, afterbody baffle plate 5, anterior baffle plate 1 all are connected and fixed by bolt 6 and chute housing 8.The described chute bottom lining plate 2 of present embodiment is identical molectron with chute side plate 3, comprise and have a chute lining board matrix 9, on the working face of this chute lining board matrix 9 by have uniformly at intervals the projection hard alloy blocks 10, chute lining board matrix 9 working faces that are positioned at the position, space of each hard alloy blocks 10 compartment also are provided with cladding alloy layer 11, and this cladding alloy layer 11 links into an integrated entity with 9 of chute lining board matrixes and hard alloy blocks 10 respectively.The junction that the described chute side plate 3 of present embodiment and chute bottom lining plate are 2 is to connect into " U " type by the rectangle prionodont structure that has each other.
Described hard alloy blocks 10 and the chute lining board matrix 9 of present embodiment are two Split type structures, and the bolt 12 of installing by the deep gouge hole of hard alloy blocks 10 links into an integrated entity it.Be embedded with the bolt 7 that is connected with chute housing 8 on this novel described chute lining board matrix 9.
In above-mentioned, being connected each other except by the rectangle prionodont structure mode of connection of described chute side plate 3 and 2 of chute bottom lining plates can also utilize two end limits directly to dock.
In above-mentioned, described hard alloy blocks 10 except select cylindric, can also select frustum, or ellipticity.
Be embedded with the bolt 7 that is connected for chute housing 8 on this novel described chute lining board matrix 9.
This novel chute side plate 3, the chute bottom lining plate 2 that can select according to the length of chute integral body.The chute side plate 3 of present embodiment, chute bottom lining plate 2 are to adopt the polylith liner plate to form.
In above-mentioned, described hard alloy blocks 10 can also be fixed into one by two bodies each other mechanically with outside chute lining board matrix 9 is connected by bolt 6.
This novel cladding alloy layer 11 be by high power laser with the anti abrasive powdered alloy cladding of resistance to oxidation on chute lining board matrix 9.
Complex intensifying chute lining board matrix of the present utility model need come and will determine according to reality.The chute lining board matrix thickness of present embodiment: 15-50mm; Hard alloy blocks diameter: 20-60mm, hill height: 11-25mm; Hard alloy blocks spacing: 10-80mm; Cladding alloy layer thickness: 5-15mm.
Claims (5)
1. the material distribution chute on furnace top of blast furnace of a complex intensifying, comprise the chute housing, chute bottom lining plate and chute side plate are housed in it, and this chute bottom lining plate and chute side plate are embedded on pressing plate, afterbody baffle plate, the anterior baffle plate, are fixed into one by bolt and chute housing; It is characterized in that, described chute bottom lining plate (2) and chute side plate (3) comprise chute lining board matrix (9), on the working face of this chute lining board matrix (9) by have uniformly at intervals the projection hard alloy blocks (10), chute lining board matrix (9) working face that is positioned at the position, space of each hard alloy blocks (10) compartment also is provided with cladding alloy layer (11), and this cladding alloy layer (11) forms with chute lining board matrix (9) face and hard alloy blocks (10) respectively.
2. the material distribution chute on furnace top of blast furnace of a kind of complex intensifying according to claim 1 is characterized in that, described hard alloy blocks (10) can be fixed into one each other with chute lining board matrix (9), or Split type structure, is bolted to be integral.
3. the material distribution chute on furnace top of blast furnace of a kind of complex intensifying according to claim 1, it is characterized in that, described chute side plate (3) is directly to dock with junction between chute bottom lining plate (2), or connects into " U " type by the rectangle prionodont structure that has each other.
4. the material distribution chute on furnace top of blast furnace of a kind of complex intensifying according to claim 1 is characterized in that, described hard alloy blocks (10) is cylindric, frustum, or ellipticity.
5. the material distribution chute on furnace top of blast furnace of a kind of complex intensifying according to claim 1 is characterized in that, is embedded with the bolt (7) that is connected with chute housing (8) on the described chute lining board matrix (9).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220581889 CN202898442U (en) | 2012-11-07 | 2012-11-07 | Compositely-strengthened blast furnace top cloth chute |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201220581889 CN202898442U (en) | 2012-11-07 | 2012-11-07 | Compositely-strengthened blast furnace top cloth chute |
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CN202898442U true CN202898442U (en) | 2013-04-24 |
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CN 201220581889 Expired - Fee Related CN202898442U (en) | 2012-11-07 | 2012-11-07 | Compositely-strengthened blast furnace top cloth chute |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110142383A (en) * | 2019-05-24 | 2019-08-20 | 乳源瑶族自治县东阳光高纯新材料有限公司 | A kind of molten aluminum chute |
-
2012
- 2012-11-07 CN CN 201220581889 patent/CN202898442U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110142383A (en) * | 2019-05-24 | 2019-08-20 | 乳源瑶族自治县东阳光高纯新材料有限公司 | A kind of molten aluminum chute |
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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: 20130424 Termination date: 20171107 |
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CF01 | Termination of patent right due to non-payment of annual fee |