Cooling of rotary furnace shell burner pipes and method专利检索-回转窑炉窑专利检索查询-专利查询网

Cooling of rotary furnace shell burner pipes and method

阅读：839发布：2024-02-11

专利汇可以提供Cooling of rotary furnace shell burner pipes and method专利检索，专利查询，专利分析的服务。并且Overheating of rotary kiln shell burner pipes has resulted in serious deterioration and severely limited service life in a number of operating furnace installations. Various measures have been applied in attempts to solve this problem, but with only limited success. This invention provides a positive solution by use of forced cooling employing an array of high-velocity air jets directed to impinge directly on the inner burner pipe walls. The apparatus includes an assembly of internal cooling header ducting within the burner pipe in an annular configuration, supplied with air under pressure, and equipped with an array of spaced jet nozzle openings through which cooling air jets are directed to impinge on the inner pipe surface, thereby effecting accelerated and continuous cooling of the burner pipe as it operates in the hot furnace atmosphere.，下面是Cooling of rotary furnace shell burner pipes and method专利的具体信息内容。

权利要求

1. In a rotary furnace in which blowing media for combustion is supplied through a shell burner pipe projeCting radially into the furnace interior, the method for cooling the burner pipes comprising the steps of: a. positioning cooling header ducting within the shell burner pipe adjacent the inner burner pipe walls and supplying gaseous cooling media to said cooling header ducting; maintaining said gaseous cooling media under a greater positive pressure within said cooling header ducting than the pressure of said blowing media for combustion within said shell burner pipe; c. directing jets of said gaseous cooling media at substantial velocity in an array of cooling media jets impinging directly against the inner side walls of said burner pipe, said jets issuing from an array of jet nozzle openings in said cooling header ducting.

2. The method according to claim 1 in which the impingement velocity of said gaseous cooling media exceeds 100 feet per second.

3. The method according to claim 1 in which said pressure of the gaseous cooling media within said header ducting is at least twice as great as the average pressure of said blowing media for combustion within the burner pipe.

4. The method according to claim 1 in which said positive pressure and thereby the impingement velocity of said gaseous cooling media is maintained substantially constant, independently of the velocity of the blowing media for combustion flowing through said burner pipe, to maintain the forced cooling effect regardless of the firing rate of said blowing media for combustion.

5. In a rotary kiln furnace employing at least one shell burner pipe projecting radially into the furnace interior through which blowing media is introduced for combustion, forced cooling apparatus comprising: a. cooling header ducting positioned within and along the length of said burner pipe adjacent to and at a selected distance from, those portions of the inner burner pipe walls subject to overheating; b. gaseous cooling media supply means, for supplying and maintaining gaseous cooling media under pressure within said cooling header ducting; c. an array of spaced cooling jet nozzle openings in the walls of said cooling header ducting for directing said gaseous cooling media in the form of an array of directly impinging multiple high velocity jets directly against the inner side walls of said burner pipe.

6. An apparatus according to claim 5 in which said cooling header ducting is fixed in relation to the shell burner only at the inlet end of said burner, allowing free differential thermal expansion of said ducting axially of said burner pipe.

7. The apparatus according to claim 5 in which the composite area of said jet nozzle openings is in the range of 1 to 5 per cent of the total area of the interior surface of said burner pipe covered by the array of cooling jets.

8. The apparatus according to claim 5 in which the distance between the jet nozzle openings and the interior walls of said burner pipe is in the range of four to 15 times the diameter of the individual jet nozzle openings.

9. The apparatus according to claim 5 in which said header ducting comprises a plurality of internal cooling header ducts positioned longitudinally in a concentric annular arrangement and substantially parallel to the inner burner pipe walls, each internal cooling header duct being equipped with a portion of said array of spaced cooling jet nozzle openings.

10. An apparatus according to claim 9 in which said internal cooling header ducts are joined together with at least one set of annular spacing rings within the burner pipe, and said ducts communicate with and join in a common external supply header pipe ring fixed rigidly at the burner inlet, which is supplied with pressurized cooling media via a separate cooling media supply duct, said internal cooling header ducts, annular spacing rings and header pipe ring comprising an integral assembly which is fastened in fixed relation to the burner at the burner inlet, and along the burner pipe interior length allows for free longitudinal movement as caused by differential thermal expansion between said integral assembly and burner pipe.

说明书全文

相关专利内容

标题	发布/更新时间	阅读量
采用风冷出渣的危废物焚烧系统及工艺	2020-06-10	0
复合岩棉增强板及其制备方法	2021-07-24	1
大型回转窑的筒节组对的焊接方法	2021-10-27	0
红矾钠湿法工艺中副产含铬氧化铁粉的铬回收利用方法	2020-07-13	1
一种链篦机-回转窑球团低NOx生产工艺及系统	2020-07-26	1
一种农药行业固体废弃物焚烧回转窑装置	2020-08-07	2
陶粒的造粒筛选再利用装置	2021-09-22	1
药用真空干燥装置	2023-06-19	1
放射性物質で汚染された稲わら、牧草、もみ殻等草木の炭化による放射性物質封じ込め方法	2021-02-27	0
Manufacture of molten iron containing chromium in cupola	2023-08-03	1

高效检索全球专利

专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。

我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。

申请试用

分析报告

专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。

申请试用

回转窑热门专利

热门分类

Cooling of rotary furnace shell burner pipes and method

该功能需要专业版企业版VIP权限，您可以：