CN204084451U - A kind of burner electrode cooling device of roller hearth heat-treated furnace - Google Patents
A kind of burner electrode cooling device of roller hearth heat-treated furnace Download PDFInfo
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- CN204084451U CN204084451U CN201420545727.3U CN201420545727U CN204084451U CN 204084451 U CN204084451 U CN 204084451U CN 201420545727 U CN201420545727 U CN 201420545727U CN 204084451 U CN204084451 U CN 204084451U
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Abstract
A burner electrode cooling device for roller hearth heat-treated furnace, belongs to steel rolling roller hearth heat-treated furnace equipment technical field, for cooling burner ignitor.The utility model has been set with cooling air base and cooling of electrode airduct in the periphery of burner ignitor, cooling-air enters in cooling of electrode airduct by the cooling of electrode wind entrance of cooling air base rear portion, cooling-air carries out cooling down to the ignitor porcelain bushing in cooling of electrode airduct and ignitor wire, reach the object that ignitor is lowered the temperature, cooled cooling-air enters combustion chamber.The utility model structure is simple, making is easy, result of use is fabulous, thoroughly solve burner ignitor and hold yielding problem in high temperature environments for a long time, after adopting the utility model, burner fault rate reduces by 30%, the service life of ignitor was increased to 6 months by 2 months, maintenance cost reduces about 60%, and year saves spare part expense about 600,000 yuan, has significant economic benefit.
Description
Technical field
The utility model relates to a kind of burner for steel rolling mill's roller hearth heat-treated furnace, belongs to steel rolling roller hearth heat-treated furnace equipment technical field.
Background technology
Burner at present for steel rolling mill's roller hearth heat-treated furnace is traditional self preheating burner, find in actual use, because burner hearth internal temperature is in the condition of high temperature all the time, burner when quitting work, under the effect of furnace pressure, furnace high-temperature gaseous mixture enters burner inside, for a long time in such a case, burner ignitor can deform, the situation of even carbonization, cause ignition signal flase drop, directly affects production.The problem of the easy overheating deforming of current solution burner ignitor does not have special method, can only frequently adjust or change spare part, so not only cause maintenance cost high, and the burner electrode changed fundamentally does not solve burner electrode and is subject to the problem that high temperature deforms, still can break down, cause burner fluctuation of service, the continuity that impact is produced and product quality.Therefore must take effective technical measures, avoid the problem of burner electrode generation high temperature deformation.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of burner electrode cooling device of roller hearth heat-treated furnace, this burner electrode cooling device can cool in time to burner electrode, reduce the temperature of burner electrode, burner electrode Yin Gaowen is avoided to produce the defects such as distortion, reduce maintenance cost, improve the operation stability of burner.
The technical scheme solved the problems of the technologies described above is:
A kind of burner electrode cooling device of roller hearth heat-treated furnace, it is made up of cooling air base and cooling of electrode airduct, cooling air base and cooling of electrode airduct are metal sleeve, cooling air base sheath is contained in the periphery of the ignitor of burner, the front end of cooling air base is connected with burner outer wall, ignitor is arranged on the rear end face of cooling air base, the tube wall of cooling air base has cooling of electrode wind entrance, cooling of electrode airduct is positioned at burner, cooling of electrode duct sleeve is contained in ignitor porcelain bushing periphery, the rear end of cooling of electrode airduct is connected with the front end of cooling air base, the front end of cooling of electrode airduct flushes with the front end of ignitor porcelain bushing.
The burner electrode cooling device of above-mentioned roller hearth heat-treated furnace, vertical range between described ignitor wire periphery and the internal surface of sleeve pipe of cooling air base is greater than 7mm, and the vertical range between ignitor porcelain bushing periphery and cooling of electrode airduct inwall is greater than 1mm.
The beneficial effects of the utility model are:
The utility model has been set with cooling air base and cooling of electrode airduct in the periphery of burner ignitor, cooling-air enters in cooling of electrode airduct by the cooling of electrode wind entrance of cooling air base rear portion, cooling-air carries out cooling down to the ignitor porcelain bushing in cooling of electrode airduct and ignitor wire, reach the object that ignitor is lowered the temperature, after cooling-air cooling, enter burner combustion chamber.The utility model structure is simple, making is easy, result of use is fabulous, thoroughly solve burner ignitor and hold yielding problem in high temperature environments for a long time, tool is added up, after adopting the utility model, burner fault rate reduces by 30%, and the service life of ignitor was increased to 6 months by 2 months, and maintenance cost reduces about 60%, year saves spare part expense about 600,000 yuan, has significant economic benefit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 installs nozzle structure schematic diagram of the present utility model.
In figure, mark is as follows: ignitor 1, ignitor porcelain bushing 2, ignitor wire 3, cooling of electrode wind base 4, cooling of electrode airduct 5, cooling of electrode wind entrance 6, fuel gas inlet 7, exhanst gas outlet 8, smoke tube 9, air conduit 10, metallic recuperator 11, combustion chamber 12, combustion air inlet 13.
Detailed description of the invention
The utility model is made up of cooling air base 4 and cooling of electrode airduct 5, and cooling air base 4 and cooling of electrode airduct 5 are metal sleeve.The material of the cooling air base 4 of an embodiment of the present utility model is HMn58-2, and the material of cooling of electrode airduct 5 is Cr25Ni20.
Show in figure, burner of the present utility model is installed and comprises ignitor 1, ignitor porcelain bushing 2, ignitor wire 3, fuel gas inlet 7, exhanst gas outlet 8, smoke tube 9, air conduit 10, metallic recuperator 11, combustion chamber 12, combustion air inlet 13, the utility model is arranged on the burner wall of ignitor 1, plays the effect for burner ignitor 1 cools.
Show in figure, cooling air base 4 is sleeved on the periphery of the ignitor 1 of burner, and the front end of cooling air base 4 is connected with burner outer wall, and ignitor 1 is arranged on the rear end face of cooling air base 4, and the tube wall of cooling air base 4 has cooling of electrode wind entrance 6.
Show in figure, cooling of electrode airduct 5 is positioned at burner, cooling of electrode airduct 5 is sleeved on ignitor porcelain bushing 2 periphery, and the rear end of cooling of electrode airduct 5 is connected with the front end of cooling air base 4, and the front end of cooling of electrode airduct 5 flushes with the front end of ignitor porcelain bushing 2.
Show in figure, the vertical range between the internal surface of sleeve pipe of ignitor wire 3 periphery and cooling air base 4 is greater than 7mm, and the vertical range between ignitor porcelain bushing 2 periphery and cooling of electrode airduct 5 inwall is greater than 1mm.
The cooling air base 4 of an embodiment of the present utility model and cooling of electrode airduct 5 inside are respectively the through hole of ∮ 18 and ∮ 12, ignitor 1 lengthens 105mm on the original basis, object ignitor wire 3 part of external diameter ∮ 4 is moved in ∮ 18 through hole in cooling air base 4, the spacing between the metal pipe-wall of ignitor wire 3 and cooling air base 4 is made to be increased to 7mm, avoid wire and metal pipe-wall short circuit, affect burner normal ignition.The ignitor porcelain bushing 2 of external diameter ∮ 10 is positioned at cooling of electrode airduct 5 inside, between ignitor porcelain bushing 2 periphery and cooling of electrode airduct 5 inwall, gap is 1mm, cooling-air enters cooling of electrode airduct 5 by the cooling of electrode wind entrance 6 above cooling air base 4, enter burner combustion chamber 12 by the gap between cooling of electrode airduct 5 and ignitor porcelain bushing 2, reach the object that ignitor 1 is lowered the temperature.
Claims (2)
1. the burner electrode cooling device of a roller hearth heat-treated furnace, it is characterized in that: it is made up of cooling air base (4) and cooling of electrode airduct (5), cooling air base (4) and cooling of electrode airduct (5) are metal sleeve, cooling air base (4) is sleeved on the periphery of the ignitor (1) of burner, the front end of cooling air base (4) is connected with burner outer wall, ignitor (1) is arranged on the rear end face of cooling air base (4), the tube wall of cooling air base (4) has cooling of electrode wind entrance (6), cooling of electrode airduct (5) is positioned at burner, cooling of electrode airduct (5) is sleeved on ignitor porcelain bushing (2) periphery, the rear end of cooling of electrode airduct (5) is connected with the front end of cooling air base (4), the front end of cooling of electrode airduct (5) flushes with the front end of ignitor porcelain bushing (2).
2. the burner electrode cooling device of roller hearth heat-treated furnace according to claim 1, it is characterized in that: the vertical range between described ignitor wire (3) periphery and the internal surface of sleeve pipe of cooling air base (4) is greater than 7mm, and the vertical range between ignitor porcelain bushing (2) periphery and cooling of electrode airduct (5) inwall is greater than 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545727.3U CN204084451U (en) | 2014-09-23 | 2014-09-23 | A kind of burner electrode cooling device of roller hearth heat-treated furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420545727.3U CN204084451U (en) | 2014-09-23 | 2014-09-23 | A kind of burner electrode cooling device of roller hearth heat-treated furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204084451U true CN204084451U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420545727.3U Active CN204084451U (en) | 2014-09-23 | 2014-09-23 | A kind of burner electrode cooling device of roller hearth heat-treated furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN204084451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539305A (en) * | 2019-01-15 | 2019-03-29 | 佛山市科皓燃烧设备制造有限公司 | A kind of novel self-cooling applied to industrial burner but electrode |
-
2014
- 2014-09-23 CN CN201420545727.3U patent/CN204084451U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539305A (en) * | 2019-01-15 | 2019-03-29 | 佛山市科皓燃烧设备制造有限公司 | A kind of novel self-cooling applied to industrial burner but electrode |
| CN109539305B (en) * | 2019-01-15 | 2023-10-10 | 佛山市科皓燃烧设备制造有限公司 | Novel self-cooling electrode applied to industrial burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |