CN106081537A - A kind of New-type cast steel discaling roll - Google Patents
A kind of New-type cast steel discaling roll Download PDFInfo
- Publication number
- CN106081537A CN106081537A CN201610400116.3A CN201610400116A CN106081537A CN 106081537 A CN106081537 A CN 106081537A CN 201610400116 A CN201610400116 A CN 201610400116A CN 106081537 A CN106081537 A CN 106081537A
- Authority
- CN
- China
- Prior art keywords
- roll
- roll shaft
- new
- transmission
- discaling
- 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.)
- Pending
Links
- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 239000012790 adhesive layer Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000009750 centrifugal casting Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000005058 metal casting Methods 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 3
- 238000005453 pelletization Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors
- B65G39/02—Adaptations of individual rollers and supports therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
- F27B1/24—Cooling arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a kind of New-type cast steel discaling roll, including the body of roll, transmission roll shaft and support roll shaft, support roll shaft and be fixedly welded on transmission roll shaft one end, the transmission roll shaft other end is connected with the body of roll, and be welded to connect by spindle nose is fixing between transmission roll shaft and the body of roll, the body of roll is formed by chilled cast iron and the seamless steel pipe composite casting of metal pattern centrifugal casting, form steel bushing, it is axially arranged with multiple roller tooth on steel bushing, and it is provided with axial notch between adjacent two roller teeth, present configuration is simple, heat resistance and wearability are high, production cost is low, the impact on discaling roll service life for the defects such as pore can be reduced, improve product quality.
Description
Technical field
The present invention relates to discaling roll technical field, be specially a kind of New-type cast steel discaling roll.
Background technology
Pellet is one of main iron-bearing material needed for blast furnace ironmaking, and the production equipment of pellet is usually pelletizing and erects
Stove, is installed with the furnace bottom of discaling roll composition activity in palletizing shaft furnace, discharge the ball good through 800 DEG C of-900 DEG C of high temperature sinterings for continuous
Nodulizing, existing gear roller of pelletizing vertical furnace has monoblock cast, split welding casting and square shaft, tooth set three kinds of forms, wherein square shaft, tooth
Set type discaling roll because of tooth set thermal deformation, dismounting and change difficulty, do not reach former design require and among being eliminated；Monoblock cast type
Discaling roll, because volume is excessive, from great, is easily generated casting flaw, causes yield rate low；The discaling roll of Split type welding casting is because of weldering
Seam is positioned at vertical furnace high-temperature region, bears bigger thermal stress and ftractures, leaks, has a strong impact on production.
Content of the invention
It is an object of the invention to provide a kind of New-type cast steel discaling roll, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme: a kind of New-type cast steel discaling roll, including the body of roll, transmission
Roll shaft and support roll shaft, described support roll shaft is fixedly welded on transmission roll shaft one end, the described transmission roll shaft other end and body of roll phase
Even, and being welded to connect by spindle nose is fixing between described transmission roll shaft and the described body of roll, the described body of roll is by metal pattern centrifugal casting
Chilled cast iron and seamless steel pipe composite casting form, formed steel bushing, described steel bushing is axially arranged with multiple roller tooth, and adjacent two
It is provided with axial notch between individual roller tooth.
Preferably, the outer surface of described roller tooth is provided with the first wearing layer, the wear-resisting weldering of the interior high carbon and chromium of described axial notch
Silk one layer of second wearing layer of built-up welding, and it is provided with adhesive layer between described second wearing layer and axial notch wall.
Preferably, the axle center of the described body of roll, transmission roll shaft and support roll shaft is on same straight line.
Preferably, a diameter of 600mm-700mm of the described body of roll, a length of 4100mm-4200mm of the described body of roll.
Preferably, the thickness of described first wearing layer is 3cm-5cm；The thickness of described second wearing layer is 5cm-7cm.
Compared with prior art, the invention has the beneficial effects as follows:
(1) present configuration is simple, and heat resistance and wearability are high, and production cost is low, and can reduce the defects such as pore makes to discaling roll
With the impact in life-span, improve product quality.
(2) body of roll of the present invention is formed by chilled cast iron and the seamless steel pipe composite casting of metal pattern centrifugal casting, is formed
It is axially arranged with on steel bushing, and steel bushing and is provided with axial notch between multiple roller tooth, and adjacent two roller teeth, use this structure, can
Improve when sintering, pelletizing production, the cooling effect of discaling roll, extend the service life of discaling roll.
Brief description
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is the top view of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
Referring to Fig. 1-2, the present invention provides a kind of technical scheme: a kind of New-type cast steel discaling roll, including the body of roll the 1st, live-roller
Axle 2 and support roll shaft 3, a diameter of 600mm-700mm of the body of roll 1, a length of 4100mm-4200mm of the described body of roll 1；The body of roll is the 1st,
The axle center of transmission roll shaft 2 and support roll shaft 3 is on same straight line；Described support roll shaft 3 is fixedly welded on transmission roll shaft 2 one
End, described transmission roll shaft 2 other end is connected with the body of roll 1, and is fixed by spindle nose 4 between described transmission roll shaft 2 and the described body of roll 1
Being welded to connect, the described body of roll 1 is formed by chilled cast iron and the seamless steel pipe composite casting of metal pattern centrifugal casting, forms steel bushing 5,
It is axially arranged with on described steel bushing 5 and is provided with axial notch 7 between multiple roller tooth 6, and adjacent two roller teeth 6, use this structure, can
Improve when sintering, pelletizing production, the cooling effect of discaling roll, extend the service life of discaling roll.
In the present embodiment, the outer surface of roller tooth 6 is provided with the first wearing layer, and the interior high carbon and chromium of described axial notch 7 is wear-resisting
One layer of second wearing layer of welding wire built-up welding, and it is provided with adhesive layer between described second wearing layer and axial notch wall 7, the first wearing layer
Thickness be 3cm-5cm；The thickness of described second wearing layer is 5cm-7cm.Selected high carbon and chromium welding wire anti-wear performance is good,
HRC > 60, friction durability is more than 10 times of cast steel, and low cost, uses the wearing layer of different-thickness to add the resistance to of roller tooth
Mill property and corrosion resistance, present configuration is simple, and heat resistance and wearability are high, and production cost is low, can reduce the defects such as pore
Impact on discaling roll service life, improves product quality.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and multiple change, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention be defined by the appended.
Claims (5)
1. a New-type cast steel discaling roll, including the body of roll (1), transmission roll shaft (2) and support roll shaft (3), it is characterised in that: described
Supporting roll shaft (3) and being fixedly welded on transmission roll shaft (2) one end, described transmission roll shaft (2) other end is connected with the body of roll (1), and institute
Stating and being welded to connect by spindle nose (4) is fixing between transmission roll shaft (2) and the described body of roll (1), the described body of roll (1) is centrifuged by metal pattern
The chilled cast iron of cast and seamless steel pipe composite casting form, and form steel bushing (5), and described steel bushing is axially arranged with multiple roller on (5)
It is provided with axial notch (7) between tooth (6), and adjacent two roller teeth (6).
2. a kind of New-type cast steel discaling roll according to claim 1, it is characterised in that: the outer surface of described roller tooth (6) is provided with
First wearing layer, with one layer of second wearing layer of high carbon and chromium abrasion-resistant welding wire built-up welding in described axial notch (7) and described second resistance to
It is provided with adhesive layer between mill layer and axial notch wall (7).
3. a kind of New-type cast steel discaling roll according to claim 1, it is characterised in that: the described body of roll (1), transmission roll shaft (2)
It is on same straight line with the axle center supporting roll shaft (3).
4. a kind of New-type cast steel discaling roll according to claim 1, it is characterised in that: the described body of roll (1) a diameter of
600mm-700mm, a length of 4100mm-4200mm of the described body of roll (1).
5. a kind of New-type cast steel discaling roll according to claim 2, it is characterised in that: the thickness of described first wearing layer is
3cm-5cm；The thickness of described second wearing layer is 5cm-7cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400116.3A CN106081537A (en) | 2016-06-08 | 2016-06-08 | A kind of New-type cast steel discaling roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610400116.3A CN106081537A (en) | 2016-06-08 | 2016-06-08 | A kind of New-type cast steel discaling roll |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106081537A true CN106081537A (en) | 2016-11-09 |
Family
ID=57228160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610400116.3A Pending CN106081537A (en) | 2016-06-08 | 2016-06-08 | A kind of New-type cast steel discaling roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106081537A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US68667A (en) * | 1867-09-10 | Henry t | ||
| CN201145472Y (en) * | 2007-11-05 | 2008-11-05 | 马鞍山东兴铸造有限公司 | Split type welding compound casting gear roller |
| CN201964750U (en) * | 2011-04-08 | 2011-09-07 | 郑素珍 | Novel long-life tooth roller for tooth roller discharger |
| CN202492144U (en) * | 2012-03-15 | 2012-10-17 | 马鞍山市晨光高耐磨科技发展有限公司 | One-piece cast and molded wear-resistant alloy roller way |
| CN202613952U (en) * | 2012-05-07 | 2012-12-19 | 河北津西钢铁集团大方重工科技有限公司 | Shaft furnace tooth roller |
| CN205708602U (en) * | 2016-06-08 | 2016-11-23 | 马鞍山东兴铸造有限公司 | A kind of New-type cast steel discaling roll |
-
2016
- 2016-06-08 CN CN201610400116.3A patent/CN106081537A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US68667A (en) * | 1867-09-10 | Henry t | ||
| CN201145472Y (en) * | 2007-11-05 | 2008-11-05 | 马鞍山东兴铸造有限公司 | Split type welding compound casting gear roller |
| CN201964750U (en) * | 2011-04-08 | 2011-09-07 | 郑素珍 | Novel long-life tooth roller for tooth roller discharger |
| CN202492144U (en) * | 2012-03-15 | 2012-10-17 | 马鞍山市晨光高耐磨科技发展有限公司 | One-piece cast and molded wear-resistant alloy roller way |
| CN202613952U (en) * | 2012-05-07 | 2012-12-19 | 河北津西钢铁集团大方重工科技有限公司 | Shaft furnace tooth roller |
| CN205708602U (en) * | 2016-06-08 | 2016-11-23 | 马鞍山东兴铸造有限公司 | A kind of New-type cast steel discaling roll |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
|
| RJ01 | Rejection of invention patent application after publication |