CN204918690U - Stove roller at bottom of heat extruder roller - Google Patents
Stove roller at bottom of heat extruder roller Download PDFInfo
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- CN204918690U CN204918690U CN201520643170.1U CN201520643170U CN204918690U CN 204918690 U CN204918690 U CN 204918690U CN 201520643170 U CN201520643170 U CN 201520643170U CN 204918690 U CN204918690 U CN 204918690U
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- roller
- furnace
- stove
- insulating layer
- heat
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Abstract
The utility model provides a stove roller at bottom of heat extruder roller, stove roller center is equipped with the cooling water through -hole along the axial, and the asbestos fibre suppression is the circular layer cover and constitutes the insulating layer on locating the stove roller, and it is fixed that the hoop clamp is passed through at the insulating layer both ends, the thickness of insulating layer is not more than the third of stove roller radius length. Through setting up the asbestos fibre insulating layer, the stove roller can bear the high temperature environment under the abnormal condition, is showing increase of service life, has solved stove roller yin gaowen and has damaged and change frequent problem. Double deck furnace roller structure distribution of temperature under high temperature operating condition is more even, non -deformable. Including the surface of roller set up the heat insulating coat, play better thermal -insulated effect. Therefore, the coaxially connector effectively overcomes various shortages in the prior art, and has great industrial utilization values.
Description
Technical field
The utility model relates to field of metallurgy;
Particularly relate to a kind of heat extruder furnace rollers of roller bottom furnace.
Background technology
Have one in hot extrusion working district, pipe mill for the annealing process high temp. roller bottom stove of steel pipe, furnace roller is located at furnace bottom for transmitting the steel pipe of heat-treating, to realize continuous heat treatment technological process.Furnace roller is in 1000-1200 temperature range and operation under the oxidative environment of open firing, and these furnace rollers must keep the ability of transmission high temperature slab in long time continuous working.Under high-temperature service environment, although furnace roller inside is provided with axial cooling water hole, but cooling performance is limited, heat suffered by furnace roller can not distribute in time, cause roll shaft to be out of shape, furnace bottom roll can be caused time serious to lose efficacy, and work-ing life is short, furnace bottom roll lost efficacy and just need to stop production replacing furnace bottom roll, reduced production operation efficiency.
Owing to producing in the process of steel pipe in hot extrusion; often can run in furnace roller the situation that furnace roller is out of shape of cutting off the water supply or leaking and producing; thus make steel pipe have damage to a certain degree; have impact on production efficiency and quality product greatly, and the cost at every turn carrying out bottom-roller changing repairing is also quite expensive.Because furnace bottom roll quantity has 42 more than, so it is extremely urgent to improve this present situation.
Utility model content
All deficiencies of prior art in view of the above, the technical problems to be solved in the utility model is to provide a kind of heat extruder furnace rollers of roller bottom furnace, to overcome the above-mentioned defect of prior art.
For achieving the above object and other relevant objects, the utility model provides a kind of heat extruder furnace rollers of roller bottom furnace, described furnace roller center is provided with water coolant through hole vertically, fibrous magnesium silicate compacting is sheathed on layer by layer on furnace roller in the form of a ring and forms thermofin, thermofin two ends are fixed by iron hoop clip, and the thickness of described thermofin is not more than 1/3rd of furnace roller radius length.
Further, the radius of described furnace roller is 100mm, and the thickness of described thermofin is 30mm.
Further, described furnace roller comprises outer roll shaft and interior roll shaft, and described outer roll sleeve is combined on interior roll shaft, and the outside surface of interior roll shaft is provided with heat insulating coat.
By above technical scheme, the utility model has following technique effect compared to prior art: by arranging fibrous magnesium silicate thermofin, furnace roller can bear the hot environment under abnomal condition, significant prolongation work-ing life, solves furnace roller and changes problem frequently because of high temperature failure.Two-deck oven roll structure temperature distribution under high temperature operating conditions is more even, not yielding.Heat insulating coat is set at the outside surface of interior roll shaft, plays better effect of heat insulation.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of the utility model preferred embodiment.
Element numbers illustrates:
1 furnace roller
2 thermofins
3 iron hoops
Embodiment
By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar the content disclosed by this specification sheets can understand other advantages of the present utility model and effect easily.
Refer to Fig. 1.Notice, structure, ratio, size etc. that this specification sheets institute accompanying drawings illustrates, content all only in order to coordinate specification sheets to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionlity or size, do not affecting under effect that the utility model can produce and the object that can reach, still all should drop on technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this specification sheets as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
The material of original furnace roller is Cr28Ni48Ws, in process of production, furnace roller inner cooling water is often cut off the water supply or drainage because of a variety of causes, furnace roller is caused to deform due to high temperature, thus scratch steel pipe, the quality of product is subject to great impact, often rush to repair in process of production, change furnace roller, and the unit price of every root furnace roller is about 50,000, cost is quite high.Based on the object solved the problem.Consult shown in Fig. 1, the utility model provides a kind of heat extruder furnace rollers of roller bottom furnace, and furnace roller 1 center is provided with water coolant through hole vertically, and fibrous magnesium silicate compacting is sheathed on layer by layer in the form of a ring on furnace roller and forms thermofin 2, and thermofin two ends are fixed by iron hoop 3 clip.The radius of furnace roller 1 is 100mm, and the thickness of thermofin 2 is 30mm, and the thickness of thermofin 2 should be not more than 1/3rd of furnace roller 1 radius length.
As further improvement of the utility model, furnace roller 1 comprises outer roll shaft and interior roll shaft, and outer roll sleeve is combined on interior roll shaft, and two-deck oven roll structure temperature distribution under high temperature operating conditions is more even, not yielding.Heat insulating coat is set at the outside surface of interior roll shaft, plays better effect of heat insulation.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (3)
1. a heat extruder furnace rollers of roller bottom furnace, it is characterized in that, described furnace roller center is provided with water coolant through hole vertically, fibrous magnesium silicate compacting is sheathed on layer by layer on furnace roller in the form of a ring and forms thermofin, thermofin two ends are fixed by iron hoop clip, and the thickness of described thermofin is not more than 1/3rd of furnace roller radius length.
2. heat extruder furnace rollers of roller bottom furnace according to claim 1, is characterized in that, the radius of described furnace roller is 100mm, and the thickness of described thermofin is 30mm.
3. heat extruder furnace rollers of roller bottom furnace according to claim 1, is characterized in that, described furnace roller comprises outer roll shaft and interior roll shaft, and described outer roll sleeve is combined on interior roll shaft, and the outside surface of interior roll shaft is provided with heat insulating coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520643170.1U CN204918690U (en) | 2015-08-24 | 2015-08-24 | Stove roller at bottom of heat extruder roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520643170.1U CN204918690U (en) | 2015-08-24 | 2015-08-24 | Stove roller at bottom of heat extruder roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204918690U true CN204918690U (en) | 2015-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520643170.1U Active CN204918690U (en) | 2015-08-24 | 2015-08-24 | Stove roller at bottom of heat extruder roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204918690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546995A (en) * | 2016-01-16 | 2016-05-04 | 江苏丰东炉业股份有限公司 | Industrial furnace roller |
-
2015
- 2015-08-24 CN CN201520643170.1U patent/CN204918690U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105546995A (en) * | 2016-01-16 | 2016-05-04 | 江苏丰东炉业股份有限公司 | Industrial furnace roller |
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