CN103525438B - A kind of maintenance and renovation method of waste and old fire door knife edge - Google Patents
A kind of maintenance and renovation method of waste and old fire door knife edge Download PDFInfo
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- CN103525438B CN103525438B CN201310533801.XA CN201310533801A CN103525438B CN 103525438 B CN103525438 B CN 103525438B CN 201310533801 A CN201310533801 A CN 201310533801A CN 103525438 B CN103525438 B CN 103525438B
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Abstract
The invention discloses a kind of maintenance and renovation method of waste and old fire door knife edge, belong to metallurgical production maintenance of equipment maintenance technology field.There is provided a kind of energy quick, simple maintenance and renovation method of waste and old fire door knife edge being carried out to maintenance waste and old fire door knife edge again.Described maintenance and renovation method, comprises the following steps, and a, clears up waste and old fire door knife edge, the waste and old fire door knife edge described in polishing cleaning, determines the position that occurs damaging and shape; B, prepare patching material, the damaged location of the waste and old fire door knife edge determined according to step a and shape, adopt the stainless steel plate of 2 ㎜ to prepare the patching material suitable with the shape at the damaged position of described waste and old fire door knife edge; C, assembling, the patching material prepared by step b is assembled to the damaged position of described waste and old fire door knife edge, and spot welding is firm; D, welding, adopt electric-arc welding to be welded at the damaged position of described patching material with described waste and old fire door knife edge, complete so once to the maintenance and renovation of described waste and old fire door knife edge.
Description
Technical field
The present invention relates to a kind of maintenance and renovation method, especially relate to a kind of maintenance and renovation method of waste and old fire door knife edge, belong to metallurgical production maintenance of equipment maintenance technology field.
Background technology
The pusher side of certain model coke oven existing, the many project organizations of coke side fire door are suspension type air cooling fire door, spring knife-edge, spring keeper.This fire door advantage is that fire door para postion is reproducible, and elasticity knife-edge can remain certain pressure, effectively stops fire door and smolders and burn with anger.Because this Formed Coke Furnace fire door top brick slot and oven door body do not couple together, after installing coal, cart is when opening the flat coal of little fire door, and suffered repeated load is all pressed on knife-edge web, can cause the inefficacy of spring in the course of time, reduces the work-ing life of spring.1#, 2# coke oven of described model after in October, 2010, super design coking time strengthening digestion, coke oven furnace temperature controls according to the upper limit, simultaneously due in this 1#, 2# coke oven mixed coal used, Guizhou coal proportioning more than 50%, fugitive constituent and G value higher, growth of graphite is very fast, long-time cleaning graphite, causes fire door burn out rate high, and smolder phenomenon of burning with anger of fire door is serious.In process of production simultaneously, knife-edge because of mechanical wear and operation reason easily collided, cause that brick slot bolt hole smolders, fire door web fatigue cracking or snap, therefore fire door occurs that top brick slot distortion in various degree and brick groove joint bolt head are burnt, top brick slot both sides fire door knife edge web also occurs that length is not etc., the crackle of skewness and snap mouth.Fire door knife edge burn out rate is high, and spare parts consumption is comparatively large, adds production run cost.In existing technology, fire door knife edge top scaling loss must carry out large repairs integral replacing knife-edge, and the knife-edge of scaling loss is scrapped.During the method maintenance, need integral replacing knife-edge, original old knife-edge is scrapped because of top little fire door place scaling loss, but other positions are not damaged, thus causes the waste of spare part material, increases running cost.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of maintenance and renovation method that energy is quick, simply waste and old fire door knife edge is carried out to maintenance waste and old fire door knife edge sharp again.
For solving the problems of the technologies described above adopted technical scheme be: a kind of maintenance and renovation method of waste and old fire door knife edge, comprises the following steps,
A, clear up waste and old fire door knife edge, the waste and old fire door knife edge described in polishing cleaning, determine the position that occurs damaging and shape;
B, prepare patching material, the damaged location of the waste and old fire door knife edge determined according to step a and shape, adopt the stainless steel plate of 2 ㎜ to prepare the patching material suitable with the shape at the damaged position of described waste and old fire door knife edge;
C, assembling patching material, the patching material prepared by step b is assembled on the damaged position of described waste and old fire door knife edge, and spot welding is firm;
D, welding, adopt electric-arc welding to be welded as a whole at the damaged position of described patching material and described waste and old fire door knife edge, complete once to the maintenance and renovation work of described waste and old fire door knife edge.
Be further, in stepb, when preparing patching material with the stainless steel plate of 2 ㎜, first described stainless steel plate is cut into the gauge finder more bigger than the damaged position shape of described waste and old fire door knife edge, and then by described gauge finder wide go out damaged position part compacting crimping, make the patching material suitable with the damaged position shape of described waste and old fire door knife edge.
Further, in portion's steps d, described electric-arc welding is covered arc welding.
The invention has the beneficial effects as follows: the dimension amending method described in employing, not only step is few, the processing servicing installation required is simple, general, and the patching material needed is also few especially, reach fast, simply, and with low cost by the only waste and old fire door knife edge maintenance and renovation of the top scaling loss object of fire door knife edge that becomes can reuse in using, thus a large amount of reduction and saved the operation of coke oven for iron, maintenance, maintenance cost.
Accompanying drawing explanation
Fig. 1 is the schematic three dimensional views that the waste and old fire door knife edge that the present invention relates to repairs contraposition;
Fig. 2 is the schematic three dimensional views of the fire door knife edge that the present invention has repaired.
Be labeled as in figure: waste and old fire door knife edge 1, patching material 2.
Embodiment
The maintenance and renovation method that a kind of energy provided by the invention is quick, simply waste and old fire door knife edge is carried out to maintenance waste and old fire door knife edge sharp more as shown in Figure 1 and Figure 2.Described maintenance and renovation method comprises the following steps,
A, clear up waste and old fire door knife edge, the waste and old fire door knife edge 1 described in polishing cleaning, determine the position that occurs damaging and shape;
B, prepare patching material, the damaged location of the waste and old fire door knife edge 1 determined according to step a and shape, adopt the stainless steel plate of 2 ㎜ to prepare the patching material 2 suitable with the shape at the damaged position of described waste and old fire door knife edge 1;
C, assembling, the patching material 2 prepared by step b is assembled on the damaged position of described waste and old fire door knife edge 1, and spot welding is firm;
D, welding, adopt electric-arc welding to be welded as a whole with the damaged position of described waste and old fire door knife edge 1 by described patching material 2, complete once to the maintenance and renovation work of described waste and old fire door knife edge.
Dimension amending method described in employing, not only step is few, the processing servicing installation required is simple, general, and the patching material 2 needed is also few especially, reach fast, simply, and with low cost by only waste and old fire door knife edge 1 maintenance and renovation of the top scaling loss object of fire door knife edge that becomes can reuse in using, thus a large amount of reduction and saved the operation of coke oven for iron, maintenance, maintenance cost.
In above-mentioned embodiment, in order to improve the repair quality of described waste and old fire door knife edge 1, convenient for maintaining operates, in stepb, when preparing patching material 2 with the stainless steel plate of 2 ㎜, first described stainless steel plate is cut into the gauge finder more bigger than the damaged position shape of described waste and old fire door knife edge 1, and then the Zhou Biankuan of described gauge finder is gone out the part compacting crimping at damaged position, make the patching material 2 suitable with the damaged position shape of described waste and old fire door knife edge 1.Meanwhile, in portion's steps d, described electric-arc welding also adopts easy to operate, the simple covered arc welding of equipment requirements.Thus make the maintenance and renovation method described in the application by the strengthening reconstruction of the little fire door easy scaling loss position to described waste and old fire door knife edge 1, this waste and old fire door knife edge 1 can be utilized again, avoid the fire door knife edge that integral replacing is new, thus reduce spare part materials consumption, reduce production cost.
Claims (2)
1. a maintenance and renovation method for waste and old fire door knife edge, is characterized in that: comprise the following steps,
A, clear up waste and old fire door knife edge, the waste and old fire door knife edge (1) described in polishing cleaning, determine the position that occurs damaging and shape;
B, prepare patching material, the damaged location of the waste and old fire door knife edge (1) determined according to step a and shape, adopt the stainless steel plate of 2 ㎜ to prepare the patching material (2) suitable with the shape at the damaged position of described waste and old fire door knife edge (1);
C, assembling, the patching material prepared by step b (2) is assembled on the damaged position of described waste and old fire door knife edge (1), and spot welding is firm;
D, welding, adopt electric-arc welding to be welded as a whole at the damaged position of described patching material (2) with described waste and old fire door knife edge (1), complete once to the maintenance and renovation work of described waste and old fire door knife edge,
In stepb, when preparing patching material (2) with the stainless steel plate of 2 ㎜, first described stainless steel plate is cut into the gauge finder more bigger than the damaged position shape of described waste and old fire door knife edge (1), and then the Zhou Biankuan of described gauge finder is gone out the part compacting crimping at damaged position, make the patching material (2) suitable with the damaged position shape of described waste and old fire door knife edge (1).
2. the maintenance and renovation method of a kind of waste and old fire door knife edge according to claim 1, is characterized in that: in portion's steps d, and described electric-arc welding is covered arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533801.XA CN103525438B (en) | 2013-10-31 | 2013-10-31 | A kind of maintenance and renovation method of waste and old fire door knife edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310533801.XA CN103525438B (en) | 2013-10-31 | 2013-10-31 | A kind of maintenance and renovation method of waste and old fire door knife edge |
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| Publication Number | Publication Date |
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| CN103525438A CN103525438A (en) | 2014-01-22 |
| CN103525438B true CN103525438B (en) | 2015-08-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109266367A (en) * | 2018-09-19 | 2019-01-25 | 淮北矿业股份有限公司 | A kind of fire door knife edge new process that maintenance damage length is too long |
| CN110142564A (en) * | 2019-05-08 | 2019-08-20 | 光大常高新环保能源(常州)有限公司 | A kind of screw conveyor method for maintaining |
| CN117903818B (en) * | 2024-03-20 | 2024-05-14 | 邢台轧辊沃川装备制造有限公司 | High-sealing environment-friendly knife edge web and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3142577A (en) * | 1976-12-10 | 1979-06-14 | Ikin Takatoshi | Sealing arrangement for coke oven doors |
| CN101538471A (en) * | 2009-04-24 | 2009-09-23 | 江都市焦化设备厂 | Furnace door knife edge for coke furnace |
| CN103059880A (en) * | 2011-10-19 | 2013-04-24 | 山西安泰集团股份有限公司 | Edge positioning restoration apparatus of lateral side door of cokery |
-
2013
- 2013-10-31 CN CN201310533801.XA patent/CN103525438B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU3142577A (en) * | 1976-12-10 | 1979-06-14 | Ikin Takatoshi | Sealing arrangement for coke oven doors |
| CN101538471A (en) * | 2009-04-24 | 2009-09-23 | 江都市焦化设备厂 | Furnace door knife edge for coke furnace |
| CN103059880A (en) * | 2011-10-19 | 2013-04-24 | 山西安泰集团股份有限公司 | Edge positioning restoration apparatus of lateral side door of cokery |
Non-Patent Citations (1)
| Title |
|---|
| 炉门框断裂的修复;刘存贵;《燃料与化工》;20061130;第37卷(第6期);第15-16页 * |
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