CN104874892B - The restorative procedure on high-pressure roller mill roller tire surface - Google Patents
The restorative procedure on high-pressure roller mill roller tire surface Download PDFInfo
- Publication number
- CN104874892B CN104874892B CN201510297462.9A CN201510297462A CN104874892B CN 104874892 B CN104874892 B CN 104874892B CN 201510297462 A CN201510297462 A CN 201510297462A CN 104874892 B CN104874892 B CN 104874892B
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- Prior art keywords
- abrasion
- backing block
- proof backing
- repaired
- welded
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K5/00—Gas flame welding
- B23K5/213—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K5/00—Gas flame welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K5/00—Gas flame welding
- B23K5/006—Gas flame welding specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K5/00—Gas flame welding
- B23K5/22—Auxiliary equipment, e.g. backings, guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a kind of restorative procedure on high-pressure roller mill roller tire surface, comprise the following steps：Surface forms the high-pressure roller mill roller tire to be repaired of pit after selection roller nail comes off, and the dust of area to be repaired is cleaned out；Selected in area to be repaired at one and be used as position to be welded, position to be welded is preheated using fire weldering；The abrasion-proof backing block that the size of selection and position to be welded matches, abrasion-proof backing block are made up of bottom and upper strata two parts；Abrasion-proof backing block is placed on position to be welded, the bottom of abrasion-proof backing block is in contact with position to be welded, then all around whole full welds, guarantee weld bead height are equal with the thickness of abrasion-proof backing block by abrasion-proof backing block using stainless steel electrode；The abrasion-proof backing block edge completed to welding removes flash removed；Above-mentioned five steps are repeated in whole area to be repaired, are completed until whole area to be repaired is repaired.The present invention solves the problems, such as to lack the high-pressure roller mill roller tire surface for effectively repairing abrasion in the prior art.
Description
Technical field
The invention belongs to plant equipment restorative procedure technical field, and in particular to repair on a kind of high-pressure roller mill roller tire surface
Compound method.
Background technology
High-pressure roller mill is a kind of efficient metallic ore disintegrating apparatus, be in muck production technology much broken and lessmill theory most
For important equipment, its advanced Multi layer extrusion crushing technology can make product granularity -8mm be maintained at more than 90%, be muck
The equipment of workshop most critical.After high-pressure roller mill uses a period of time, with the aggravation of roller tire surface abrasion, the roller on roller tire surface
Nail will be started shedding off, and then Gun Tai basic units can also wear herein, and " pitting " that shape differs is caused to roller tire surface, and
Roller nail comes off and the impaired caused most direct result of basic unit is exactly that discharging-material size can not ensure, if the roller nail on roller tire surface is complete
Portion comes off, then and roller mill will lose the ability of attrition crushing substantially, the difficulty very big to the processing ore increase of downstream ball mill,
It can even influence completely to stop production.If the new roller mill roller tire of more transducer set takes around 12,000,000 yuans, this will be to car
Between production cost cause no small burden, and the roller tire for repairing abrasion faces many difficulties, at this stage almost without comparing into
The recovery scenario of type and reliable in quality.Roller mill roller tire is made up of dynamic roller and fixed roll, and wherein abrading section is mainly what roller was followed closely
Come off and the abrasion of basic unit, roller nail and basic unit's material are diamondite steel.In former installation process, roller nail is mainly adopted
It is embedded in special glue using hydraulic technique inside Gun Tai basic units, exposed 5mm.With the abrasion of basic unit, roller nail will start
Different degrees of comes off, and then causes whole surrounding Gun Ding collectives to come off, and " pitting " that formation rule differs, loses roller tire crowded
Press breaking capacity.Even if continuing to purchase roller nail, it can not also be inlayed using prior art, its surface can not more be added
Work.Therefore, how effectively to repair the high-pressure roller mill roller tire surface of abrasion turns into a difficult problem of the pendulum in face of technical staff.
The content of the invention
It is an object of the invention to provide a kind of restorative procedure on high-pressure roller mill roller tire surface, solution lacks in the prior art
The problem of effectively repairing the high-pressure roller mill roller tire surface of abrasion.
The technical solution adopted in the present invention is：
A kind of restorative procedure on high-pressure roller mill roller tire surface, specifically implements according to following steps：
Step 1, surface forms the high-pressure roller mill roller tire to be repaired of pit after selection roller nail comes off, by area to be repaired
Dust is cleaned out；
Step 2, selected in area to be repaired at one and be used as position to be welded, position to be welded carried out using fire weldering pre-
Heating；
Step 3, the abrasion-proof backing block that the size of selection and position to be welded matches, abrasion-proof backing block is by bottom and two, upper strata
It is grouped into；
Step 4, the abrasion-proof backing block that step 3 is selected is placed on position to be welded, make the bottom of abrasion-proof backing block with it is to be welded
Position is in contact, and abrasion-proof backing block all around whole full welds then are ensured into weld bead height and abrasion-proof backing block using stainless steel electrode
Thickness it is equal；
Step 5, subsequent treatment：Flash removed is removed to welding the abrasion-proof backing block edge completed through step 4；
Step 6, above-mentioned five steps are repeated in whole area to be repaired, is completed until whole area to be repaired is repaired.
The features of the present invention also resides in：
The instrument that cleaning dust uses in step 1 is hairbrush or steel brush.
The instrument that the weldering of step 2 moderate heat uses is adjustable A.C. welder and oxygen-acetylene bottle.
The bottom of abrasion-proof backing block is steel plate in step 3, and thickness 6mm, the upper strata of abrasion-proof backing block is formed with volume for built-up welding
Fraction reaches more than 50% Cr7C3Alloy wear-resisting layer based on carbide, thickness 6mm.
Abrasion-proof backing block length and width dimensions have following four specification in step 3：50×100mm、50×200mm、50×
250mm、50×300mm。
The beneficial effects of the invention are as follows：
The restorative procedure on a kind of high-pressure roller mill roller tire surface of the present invention, in the roller tire surface soldered that roller nail comes off the bottom of by
The abrasion-proof backing block that layer steel plate and wearing layer collectively form, makes the roller tire service life of surface abrasion significantly extend, greatlys save
Production cost；The restorative procedure of the present invention is simple and easy, and uses effect using the roller tire after the restorative procedure reparation of the present invention
Fruit is good, and its product granularity crushed is not affected by very big influence.
Embodiment
The present invention is described in further detail with reference to embodiment：
A kind of restorative procedure on high-pressure roller mill roller tire surface of the present invention, specifically implements according to following steps：
Step 1, surface forms the high-pressure roller mill roller tire to be repaired of pit after selection roller nail comes off, using hairbrush or steel
Brush cleans out the dust of area to be repaired；
Step 2, selected in area to be repaired at one and be used as position to be welded, position to be welded carried out using fire weldering pre-
Heating, the instrument used is the oxygen-acetylene bottle needed for adjustable A.C. welder and fire weldering；
Step 3, the abrasion-proof backing block that the size of selection and position to be welded matches, abrasion-proof backing block is by bottom and two, upper strata
It is grouped into, wherein, bottom is steel plate, and thickness 6mm, upper strata is that built-up welding formation reaches more than 50% Cr with volume fraction7C3Carbonization
Alloy wear-resisting layer based on thing, thickness 6mm；Abrasion-proof backing block length and width dimensions have following four specification：50×100mm、
50×200mm、50×250mm、50×300mm；
Step 4, the abrasion-proof backing block that step 3 is selected is placed on position to be welded, make the bottom of abrasion-proof backing block with it is to be welded
Position is in contact, and abrasion-proof backing block all around whole full welds then are ensured into weld bead height and abrasion-proof backing block using stainless steel electrode
Thickness it is equal；
Step 5, subsequent treatment：Flash removed is removed to welding the abrasion-proof backing block edge completed through step 4；
Step 6, above-mentioned five steps are repeated in whole area to be repaired, is completed until whole area to be repaired is repaired.
Above-mentioned steps 1 and step 2 are provided to strengthen weldability.High-pressure roller mill is repaired using the welding method of the present invention
Behind the roller tire surface of abrasion, its discharging-material size is only a small amount of compared with new high-pressure roller mill to be declined, from original product granularity -8mm
Drop to 80% or so for more than 90%；Occur being shed to the final roller tire more renewed from the roller nail on roller tire surface, using this hair
After bright welding method, the usage time of roller tire extends 10 months or so again, greatly ensure that productivity effect.Such as
Molybdenum concntrate workshop, molybdenum concntrate yield maintains 550 tons or so every month, and in 10 months of extension, molybdenum concntrate processing will
Nearly 6000T, very big contribution is made that to production.
The welding method of the present invention is notable for roller tire protecting effect, is mainly reflected in the following aspects：
1. because former roller tire is expensive, and abrasion-proof backing block and stainless steel electrode lower cost for material, therefore can be big
It is big cost-effective.
2. after welding abrasion-proof backing block, product granularity is not greatly affected, by some other auxiliary production technologies, than
As again the methods of gap in small, broken bits, addition product humidity, roller tire continues 10 months life-spans, and pole is made for productivity effect in reasonable adjusting
Big contribution.
3. the welding method of the present invention is simple to operate, the roller on roller tire surface nail need to only weld to it again after coming off,
And welding abrasion-proof backing block up has the function that to resist abrasion, is to achieve many things at one stroke.
Claims (1)
1. the restorative procedure on high-pressure roller mill roller tire surface, it is characterised in that specifically implement according to following steps：
Step 1, surface forms the high-pressure roller mill roller tire to be repaired of pit after selection roller nail comes off,
The dust of area to be repaired is cleaned out；The instrument that described cleaning dust uses is hairbrush or steel brush；
Step 2, selected in area to be repaired at one and be used as position to be welded, pre-add is carried out to position to be welded using fire weldering
Heat；The instrument that described fire weldering uses is adjustable A.C. welder and oxygen-acetylene bottle；
Step 3, the abrasion-proof backing block that the size of selection and position to be welded matches, abrasion-proof backing block is by bottom and upper strata two parts group
Into；The bottom of described abrasion-proof backing block is steel plate, and thickness 6mm, the upper strata of the abrasion-proof backing block is formed with volume integral for built-up welding
Number reaches the alloy wear-resisting layer based on more than 50% Cr7C3 carbide, thickness 6mm；Described abrasion-proof backing block length and width
Size has following four specification：50×100mm、50×200mm、50×250mm、50×300mm；
Step 4, the abrasion-proof backing block that step 3 is selected is placed on position to be welded, makes the bottom and position to be welded of abrasion-proof backing block
It is in contact, abrasion-proof backing block all around whole full welds is then ensured by weld bead height and the thickness of abrasion-proof backing block using stainless steel electrode
Spend equal；
Step 5, subsequent treatment：Flash removed is removed to welding the abrasion-proof backing block edge completed through step 4；
Step 6, above-mentioned five steps are repeated in whole area to be repaired, is completed until whole area to be repaired is repaired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510297462.9A CN104874892B (en) | 2015-06-03 | 2015-06-03 | The restorative procedure on high-pressure roller mill roller tire surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510297462.9A CN104874892B (en) | 2015-06-03 | 2015-06-03 | The restorative procedure on high-pressure roller mill roller tire surface |
Publications (2)
| Publication Number | Publication Date |
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| CN104874892A CN104874892A (en) | 2015-09-02 |
| CN104874892B true CN104874892B (en) | 2018-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510297462.9A Active CN104874892B (en) | 2015-06-03 | 2015-06-03 | The restorative procedure on high-pressure roller mill roller tire surface |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105921850A (en) * | 2016-05-31 | 2016-09-07 | 铜陵市东方矿冶机械有限责任公司 | Overlaying abrasion-resistant plate |
| CN108942077A (en) * | 2018-08-13 | 2018-12-07 | 芜湖鼎瀚再制造技术有限公司 | A kind of grinder hammerhead renovation technique |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101288A (en) * | 1987-12-29 | 1988-11-09 | 中国船舶工业总公司天津修船技术研究所 | Process for repairing high manganese steel bagger |
| CN2204643Y (en) * | 1992-05-29 | 1995-08-09 | 贾世文 | Dual-metal roller for coal mill |
| CN1174772A (en) * | 1997-06-27 | 1998-03-04 | 重庆大学 | Technology for finishing surface defect on iron casting |
| JP2013180312A (en) * | 2012-03-01 | 2013-09-12 | Kurimoto Ltd | Removing method for existing padding material and crushing member |
| CN103612000A (en) * | 2013-12-02 | 2014-03-05 | 湖州市银鑫轧辊有限公司 | Cold bend roller welding repairing method |
| CN104526248A (en) * | 2014-11-04 | 2015-04-22 | 马鞍山市格林矿冶环保设备有限公司 | Column nail roller surface repairing method of novel high-pressure roller mill |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101966476A (en) * | 2009-07-28 | 2011-02-09 | 鞍钢集团矿业公司 | Welding process of crusher fixed cone lining plate with abrasion-resistant steel plate |
-
2015
- 2015-06-03 CN CN201510297462.9A patent/CN104874892B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87101288A (en) * | 1987-12-29 | 1988-11-09 | 中国船舶工业总公司天津修船技术研究所 | Process for repairing high manganese steel bagger |
| CN2204643Y (en) * | 1992-05-29 | 1995-08-09 | 贾世文 | Dual-metal roller for coal mill |
| CN1174772A (en) * | 1997-06-27 | 1998-03-04 | 重庆大学 | Technology for finishing surface defect on iron casting |
| JP2013180312A (en) * | 2012-03-01 | 2013-09-12 | Kurimoto Ltd | Removing method for existing padding material and crushing member |
| CN103612000A (en) * | 2013-12-02 | 2014-03-05 | 湖州市银鑫轧辊有限公司 | Cold bend roller welding repairing method |
| CN104526248A (en) * | 2014-11-04 | 2015-04-22 | 马鞍山市格林矿冶环保设备有限公司 | Column nail roller surface repairing method of novel high-pressure roller mill |
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|---|---|
| CN104874892A (en) | 2015-09-02 |
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