CN201311184Y - Open type depression structure of walking beam furnace - Google Patents
Open type depression structure of walking beam furnace Download PDFInfo
- Publication number
- CN201311184Y CN201311184Y CNU200820154492XU CN200820154492U CN201311184Y CN 201311184 Y CN201311184 Y CN 201311184Y CN U200820154492X U CNU200820154492X U CN U200820154492XU CN 200820154492 U CN200820154492 U CN 200820154492U CN 201311184 Y CN201311184 Y CN 201311184Y
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- heating furnace
- furnace
- shaped beam
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Abstract
The utility model relates to a walking beam furnace, in particular to an open type depression structure of a walking beam furnace, which comprises a furnace body, a U-shaped beam on the furnace body, a C-shaped clamping piece and a U-shaped connecting piece, wherein the furnace body is constructed by suspension anchor bricks, the C-shaped clamping piece is used to connect the U-shaped beam and the furnace body, and the U-shaped connecting piece positioned between the C-shaped clamping piece and the U-shaped beam is in welded connection with the U-shaped beam, thereby a natural air ventilation layer is formed on the lower portion of the U-shaped beam. The utility model resolves the collapse problem caused by the depression of a furnace top of the waling beam furnace.
Description
Technical field
The utility model stepping beam type relates to heating furnace, especially the walking beam heating furnace screw-down structure.
Background technology
Hot-rolling heating furnace mainly is to be used for slab before rolling is carried out the high temperature heating, and Large-scale Heater stove pattern is generally and heats walking beam heating furnace up and down, is made up of soaking zone, two sections of adding, the section of adding, preheating section, heat-recovery section and charging chamber.
The heating furnace furnace roof is full open hearth roof construction, in order to make soaking zone, bringing-up section, heat-recovery section furnace temperature relatively independent, be provided with " U " type screw-down structure respectively at soaking zone and two sections of adding, preheating section and heat-recovery section furnace roof, the furnace roof anchored brick is depressed girder (straight carbon steel) by " C " type fastener (heat-resistance stainless steel) with furnace roof " U " type and is connected, " C " type fastener and U " type depresses between the girder and to adopt the mode of welding to connect; the furnace roof thermal insulation layer is directly laid to U " type depresses the girder lower surface, and at U " the type top of depressing girder is provided with airduct with holes and cools off.
In the actual use, because " C " type fastener and U " type depresses the girder lower curtate and is close to thermal insulation layer; though top has cooling duct to cool off; girder bottom cooling circulation of air effect is very undesirable; especially after the moldable appearance cracking in bottom stitches; " C " type fastener and U " type depresses that girder lower curtate temperature is too high to cause above-mentioned two structural member sealing-offs, causes anchored brick to come off, furnace roof caves in.As, in January, 1991, after certain 1#-3# of steel mill stove is gone into operation " U " type has taken place soon and depressed position furnace roof cave-in accident; Same accident took place behind the 1# of this factory heating furnace reformation soon once more in April, 2008.
Though this factory is when the 1# heating furnace reformation, structure is improved under the 1-3# furnace pressure than before, promptly increased the cooling air hose newly depressing the position, can adopt cooling air to cool off, but find that the girder bottom is sluggish in air circulation in actual the use, cooling effect is relatively poor, and the cracking of the body of anti-material part impels this position temperature higher, cause the distortion of " U " type girder, peeling decarburization, " C " type fastener to come off, finally cause the reduction section furnace roof to cave in.
Summary of the invention
The utility model is intended to solve the above-mentioned defective of prior art, and a kind of walking beam heating furnace open type screw-down structure is provided.The utility model has solved the walking beam heating furnace furnace roof and has depressed the problem of caving in.
The utility model is achieved in that
A kind of walking beam heating furnace open type screw-down structure, it comprises heating furnace body, U-shaped beam on the heating furnace body of hanging anchored brick and building up and the C shape fastener that connects U-shaped beam and heating furnace body, it also comprises a U-shaped connector, it between C shape fastener and U-shaped beam and and the U-shaped beam be welded together, thereby form a natural air circulation layer in the bottom of U-shaped beam.
Described walking beam heating furnace open type screw-down structure, described U-shaped connector and U-shaped beam are ordinary carbon steel and make.
Described walking beam heating furnace open type screw-down structure, described U-shaped connector is connected with U-shaped beam full weld.
Natural wind is walked in the utility model girder bottom, communicates with external environment, and each parts is all open in air, considers that simultaneously moldable cracking may cause the local ambient temperature height, is designed to identical with C shape part material U-shaped spare.Increase U-shaped spare and not only can eliminate and depress the urgent blowing out accident that " C " part comes off and causes hanger brick and moldable slump and cause, but also cancelled cooling duct, energy savings consumption reduces operating cost.
Compare with original technology and domestic and international existing technology, effect of the present utility model is mainly reflected in the following aspects:
1. remove a hidden danger, solve and depress the anti-material slump in position.Operating position is very good, has thoroughly solved " C " part and has come off and cause hanger brick and moldable slump problem.
2, the cancellation cooling duct reduces operating cost.
It is all open in the free convection air to depress girder, utilizes the convection current air in workshop to cool off depressing girder, has cancelled the cooling duct in the former screw-down structure, reduces operating cost.
Description of drawings
Below, further specify the utility model in conjunction with the accompanying drawings:
Fig. 1 is this practical working state schematic representation;
Fig. 2 is the utility model schematic diagram.
The specific embodiment
As depicted in figs. 1 and 2: 1 is the U-shaped beam among the figure; The 2nd, C type fastener; The 3rd, the U-shaped connector; The 4th, natural air circulation layer; The 5th, the anchored brick layer; The 6th, the furnace wall body.
A kind of walking beam heating furnace open type screw-down structure, it comprises U-shaped beam of hanging on anchored brick layer 5, the furnace wall body anchor 61 and the C shape fastener 2 that connects U-shaped beam 1 and heating furnace body 5, it comprises that also a U-shaped connects 3, it between C shape fastener 2 and U-shaped beam 1 and and U-shaped beam 1 full weld be welded together, thereby form a natural air circulation layers 4 in the bottom of U-shaped beam.
Described U-shaped connector 3 and U-shaped beam 1 be ordinary carbon steel make make both at high temperature consistent the preventing of the coefficient of expansion come off.
Claims (3)
1. walking beam heating furnace open type screw-down structure, it comprises heating furnace body, U-shaped beam on the heating furnace body of hanging anchored brick and building up and the C shape fastener that connects U-shaped beam and heating furnace body, it is characterized in that, it also comprises a U-shaped connector, it between C shape fastener and U-shaped beam and and the U-shaped beam be welded together, thereby form a natural air circulation layer in the bottom of U-shaped beam.
2. walking beam heating furnace open type screw-down structure according to claim 1 is characterized in that described U-shaped connector and U-shaped beam are ordinary carbon steel and make.
3. walking beam heating furnace open type screw-down structure according to claim 1 is characterized in that, described U-shaped connector is connected with U-shaped beam full weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820154492XU CN201311184Y (en) | 2008-10-27 | 2008-10-27 | Open type depression structure of walking beam furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820154492XU CN201311184Y (en) | 2008-10-27 | 2008-10-27 | Open type depression structure of walking beam furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201311184Y true CN201311184Y (en) | 2009-09-16 |
Family
ID=41108439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820154492XU Expired - Fee Related CN201311184Y (en) | 2008-10-27 | 2008-10-27 | Open type depression structure of walking beam furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201311184Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596289A (en) * | 2015-02-03 | 2015-05-06 | 中冶华天工程技术有限公司 | Hanging device for preventing furnace top collapse at furnace top anchoring brick fracture part of heating furnace |
| CN105928363A (en) * | 2016-05-28 | 2016-09-07 | 江苏常宝钢管股份有限公司 | U-shaped compound fire damper beam capable of avoiding interference between temperature fields in steel billet annular heating furnace |
-
2008
- 2008-10-27 CN CNU200820154492XU patent/CN201311184Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596289A (en) * | 2015-02-03 | 2015-05-06 | 中冶华天工程技术有限公司 | Hanging device for preventing furnace top collapse at furnace top anchoring brick fracture part of heating furnace |
| CN105928363A (en) * | 2016-05-28 | 2016-09-07 | 江苏常宝钢管股份有限公司 | U-shaped compound fire damper beam capable of avoiding interference between temperature fields in steel billet annular heating furnace |
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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: 20090916 Termination date: 20121027 |