CN106938381A - Coal winnowing machine fan blade restorative procedure - Google Patents
Coal winnowing machine fan blade restorative procedure Download PDFInfo
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- CN106938381A CN106938381A CN201710319368.8A CN201710319368A CN106938381A CN 106938381 A CN106938381 A CN 106938381A CN 201710319368 A CN201710319368 A CN 201710319368A CN 106938381 A CN106938381 A CN 106938381A
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- blade
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- winnowing machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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Abstract
The present invention relates to a kind of coal winnowing machine fan blade restorative procedure, it is under conditions of blower fan is not dismantled, handle hole is cut out on Blower Housing, then the blade cuts of abrasion are removed from handle hole and measures the size of the blade under cutting, according to the size, new blade is processed using with original blade material identical steel plate, the new blade of processing is weldingly fixed on original position, then dynamic balancing is calibrated, finally handle hole is blocked, operate easy step simple, blower fan need not be dismantled, repaired simultaneously just for the blade of abrasion, rehabilitation cost can effectively be saved, improve remediation efficiency.
Description
Technical field
The present invention relates to coal pneumatic separator technical field, and in particular to a kind of coal winnowing machine fan blade reparation side
Method.
Background technology
Coal winnowing machine is a kind of to set the coarse crushing of bulk coal, conventional coal production in small, broken bits and wind model with machinery
It is standby, it is typically that blower fan is set in the one end in air channel when the coal after to crushing carries out wind model at present, will by blower fan
Coal particles in small, broken bits are delivered to the recovery that fiber bag precipitator carries out fines, and the blower fan used by existing coal winnowing machine is big
Many is all centrifugal blower, because coal selection by winnowing environment is very severe, has coal particles and enters blower interior, therefore, blower fan exists
It is extremely serious using a period of time rear blade wear phenomenon, and blade makes once wearing and tearing and causing wind supply quantity to meet coal selection by winnowing
With requiring.Coal selection by winnowing quality and efficiency are influenceed, ature of coal is reduced.And existing coal winnowing machine Yi Dan install after, due to equipment
Larger, dismounting and change is very difficult, especially the blower fan of coal winnowing machine, once blade damage is, it is necessary to which blower fan is pulled down, then incites somebody to action
Blower fan is taken apart all blade integral replacings of whole blower fan, and detaching fan first changes very difficult, generally requires destructiveness
Remove, secondly change all blades, cost is higher, it is time-consuming longer to have a strong impact on production efficiency.
The content of the invention
In summary, in order to overcome the shortcomings of prior art problem, the invention provides a kind of coal winnowing machine blower fan leaf
Piece restorative procedure, it is that under conditions of blower fan is not dismantled, handle hole is cut out on Blower Housing, then will be ground from handle hole
The blade cuts of damage remove and measure the size of the blade under cutting, according to the size, using with original blade material identical
Steel plate processes new blade, and the new blade of processing is weldingly fixed on into original position, dynamic balancing is then calibrated, finally by handle hole
Closure, operates easy step simple, without dismantling blower fan, while repaired just for the blade of abrasion, can be effective
Saving rehabilitation cost, improve remediation efficiency.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of coal winnowing machine fan blade restorative procedure, wherein：Comprise the following steps that：
A, the cutting operation hole on Blower Housing；
B, rotation fan shaft, the blade of abrasion is turned to just to operation hole site；
C, the blade cuts removal by abrasion；
D, the size of the blade measured under cutting and record；
E, the size according to the blade under the cutting of measurement, new blade is processed using with original blade material identical steel plate, plus
The quantity of the new blade of work is identical with the quantity of the blade under cutting；
F, the new blade processed in step e is weldingly fixed on original position；
G, dynamic balance checking；
H, plugging operations hole.
Technical scheme may also is that realization：In described step c, in the blade of cutting abrasion,
The welding point needed for the new blade of welding is reserved, and polish welding groove.
Technical scheme may also is that realization：In described step d, the blade under cutting is being measured
During size, to measure cutting under blade each length of side and thickness.
Technical scheme may also is that realization：In described step e, the weight of the new blade of monolithic is weighed
And record, it is ensured that the weight of all new blades of processing is identical.
Technical scheme may also is that realization：In described step f, when being welded and fixed new blade,
The gross weight M of the welding rod used by a piece of new blade of welding is first calculated, computing formula is：
M=n*m-w
Wherein：M is the weight of single weld electrode,
N for the welding rod needed for being welded and fixed a piece of new blade quantity,
W is the gross weight of a piece of new remaining discard electrode of blade of welding completion weighed,
The gross weight of welding rod when welding other new blades is M.
Technical scheme may also is that realization：In described step g, during dynamic balance checking, blower fan is rotated
Rotating shaft, rotates fan blade, dynamic balance calibration is carried out to blade, in trimming process, by not wearing and tearing in new blade or/and
Blade on increase weld seam method, adjust fan blade dynamic balancing.
Beneficial effects of the present invention are：
1st, the present invention is that under conditions of blower fan is not dismantled, handle hole is cut out on Blower Housing, then will be ground from handle hole
The blade cuts of damage remove and measure the size of the blade under cutting, according to the size, using with original blade material identical
Steel plate processes new blade, and the new blade of processing is weldingly fixed on into original position, dynamic balancing is then calibrated, finally by handle hole
Closure, operates easy step simple, without dismantling blower fan, while repaired just for the blade of abrasion, can be effective
Saving rehabilitation cost, improve remediation efficiency.
2nd, the present invention reserves the welding point welded needed for new blade, and polish weldering in the blade of cutting abrasion
Connect groove, the welding operation of convenient follow-up new blade, meanwhile, the present invention is when making new blade, it is ensured that processing it is all
The weight of new blade is identical, while when welding new blade, also to ensure that the gross weight of used welding rod is identical, so as to ensure
The weight of new blade is identical after replacing, so as to ensure that the weight of each blade of blower fan is uniform as far as possible, is easy to dynamically balanced tune
It is whole.
Embodiment
With reference to embodiment, the present invention is described in further detail.
A kind of coal winnowing machine fan blade restorative procedure, is comprised the following steps that：
A, the cutting operation hole on Blower Housing；The size of handle hole is more than the size of single blade.And by the wind cut down
Machine hull plate is preserved.
B, rotation fan shaft, the blade of abrasion is turned to just to operation hole site；
C, the blade cuts removal by abrasion；In the blade of cutting abrasion, the welding point welded needed for new blade is reserved,
And polish welding groove.Typically the width of reserved welding point is 5 ~ 10mm, and, the size of reserved welding point to the greatest extent may be used
Can it is identical.
D, the size of the blade measured under cutting and record；During the size of the blade under measurement cutting, cutting is measured
Under blade each length of side and thickness.Also, wearing part size is supplemented in measurement, is surveyed according to the theoretical profile of blade
Amount.
E, the size according to the blade under the cutting of measurement, young leaves is processed using with original blade material identical steel plate
Piece, the quantity of the new blade of processing is identical with the quantity of the blade under cutting；Weigh the weight and record of the new blade of monolithic, it is ensured that
The weight of all new blades of processing is identical.
F, the new blade processed in step e is weldingly fixed on original position；
When being welded and fixed new blade, wherein a piece of new blade is first welded, and the welding rod used by a piece of new blade is welded in calculating
Gross weight M, computing formula is：
M=n*m-w
Wherein：M is the weight of single weld electrode,
N for the welding rod needed for being welded and fixed a piece of new blade quantity,
W is the gross weight of a piece of new remaining discard electrode of blade of welding completion weighed,
Then other new blades are welded, the gross weight of welding rod when welding other new blades will be used with first new blade
Welding rod gross weight it is identical, be M.
G, dynamic balance checking；
During dynamic balance checking, fan shaft is rotated, fan blade is rotated, dynamic balance calibration is carried out to blade, in trimming process,
By increasing the method for weld seam on new blade or/and unworn blade, the dynamic balancing of fan blade is adjusted.
H, plugging operations hole.The steel plate of Blower Housing under the cutting of preservation is weldingly fixed on handle hole again, will
Handle hole is blocked.
It is noted that above-described embodiment is to the illustrative and not limiting of technical solution of the present invention, art is general
The equivalent of logical technical staff or the other modifications made according to prior art, as long as not exceeding technical solution of the present invention
Thinking and scope, should be included within interest field of the presently claimed invention.
Claims (6)
1. a kind of coal winnowing machine fan blade restorative procedure, it is characterised in that：Comprise the following steps that：
A, the cutting operation hole on Blower Housing；
B, rotation fan shaft, the blade of abrasion is turned to just to operation hole site；
C, the blade cuts removal by abrasion；
D, the size of the blade measured under cutting and record；
E, the size according to the blade under the cutting of measurement, new blade is processed using with original blade material identical steel plate, plus
The quantity of the new blade of work is identical with the quantity of the blade under cutting；
F, the new blade processed in step e is weldingly fixed on original position；
G, dynamic balance checking；
H, plugging operations hole.
2. coal winnowing machine fan blade restorative procedure according to claim 1, it is characterised in that：In described step c,
In the blade of cutting abrasion, the welding point welded needed for new blade is reserved, and polish welding groove.
3. coal winnowing machine fan blade restorative procedure according to claim 1, it is characterised in that：In described step d,
Measurement cutting under blade size when, to measure cutting under blade each length of side and thickness.
4. coal winnowing machine fan blade restorative procedure according to claim 1, it is characterised in that：In described step e,
Weigh the weight and record of the new blade of monolithic, it is ensured that the weight of all new blades of processing is identical.
5. coal winnowing machine fan blade restorative procedure according to claim 1, it is characterised in that：In described step f,
When being welded and fixed new blade, the gross weight M of the welding rod used by a piece of new blade of welding is first calculated, computing formula is：
M=n*m-w
Wherein：M is the weight of single weld electrode,
N for the welding rod needed for being welded and fixed a piece of new blade quantity,
W is the gross weight of a piece of new remaining discard electrode of blade of welding completion weighed,
The gross weight of welding rod when welding other new blades is M.
6. coal winnowing machine fan blade restorative procedure according to claim 1, it is characterised in that：In described step g,
During dynamic balance checking, fan shaft is rotated, fan blade is rotated, dynamic balance calibration is carried out to blade, in trimming process, passed through
Increase the method for weld seam on new blade or/and unworn blade, adjust the dynamic balancing of fan blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319368.8A CN106938381A (en) | 2017-05-09 | 2017-05-09 | Coal winnowing machine fan blade restorative procedure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710319368.8A CN106938381A (en) | 2017-05-09 | 2017-05-09 | Coal winnowing machine fan blade restorative procedure |
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| CN106938381A true CN106938381A (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710319368.8A Pending CN106938381A (en) | 2017-05-09 | 2017-05-09 | Coal winnowing machine fan blade restorative procedure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107627073A (en) * | 2017-09-19 | 2018-01-26 | 成都成发泰达航空科技有限公司 | A kind of repair method of stator blade |
| CN109773405A (en) * | 2019-01-28 | 2019-05-21 | 安徽晋煤中能化工股份有限公司 | Slideway docks restorative procedure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4819313A (en) * | 1988-06-03 | 1989-04-11 | Westinghouse Electric Corp. | Method of salvaging stationary blades of a steam turbine |
| US20060090336A1 (en) * | 2004-10-29 | 2006-05-04 | Graham James H | Adaptive machining and weld repair process |
| CN101204768A (en) * | 2006-12-22 | 2008-06-25 | 沈阳大陆激光技术有限公司 | Repair process of centrifugal compressor runner blade |
| CN104014903A (en) * | 2014-06-27 | 2014-09-03 | 河北瑞兆激光再制造技术有限公司 | Manual arc welding repair method for centrifugal blower after impeller blade abrasion |
| CN105127663A (en) * | 2015-08-24 | 2015-12-09 | 武汉理工大学 | Remanufacturing technology for pulverizer exhauster impeller of boiler |
| CN105290707A (en) * | 2015-12-04 | 2016-02-03 | 玉溪大红山矿业有限公司 | Repeatable repair method for impeller of agitation tank |
-
2017
- 2017-05-09 CN CN201710319368.8A patent/CN106938381A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4819313A (en) * | 1988-06-03 | 1989-04-11 | Westinghouse Electric Corp. | Method of salvaging stationary blades of a steam turbine |
| US20060090336A1 (en) * | 2004-10-29 | 2006-05-04 | Graham James H | Adaptive machining and weld repair process |
| CN101204768A (en) * | 2006-12-22 | 2008-06-25 | 沈阳大陆激光技术有限公司 | Repair process of centrifugal compressor runner blade |
| CN104014903A (en) * | 2014-06-27 | 2014-09-03 | 河北瑞兆激光再制造技术有限公司 | Manual arc welding repair method for centrifugal blower after impeller blade abrasion |
| CN105127663A (en) * | 2015-08-24 | 2015-12-09 | 武汉理工大学 | Remanufacturing technology for pulverizer exhauster impeller of boiler |
| CN105290707A (en) * | 2015-12-04 | 2016-02-03 | 玉溪大红山矿业有限公司 | Repeatable repair method for impeller of agitation tank |
Non-Patent Citations (2)
| Title |
|---|
| 刘瑞明等: "窑头风机叶片损坏后的修复", 《水泥技术》 * |
| 李升等: "330MW汽轮机低压转子叶片断裂修复处理", 《西北电力技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107627073A (en) * | 2017-09-19 | 2018-01-26 | 成都成发泰达航空科技有限公司 | A kind of repair method of stator blade |
| CN109773405A (en) * | 2019-01-28 | 2019-05-21 | 安徽晋煤中能化工股份有限公司 | Slideway docks restorative procedure |
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Application publication date: 20170711 |