CN1017551B - 竖炉用的密封门 - Google Patents
竖炉用的密封门Info
- Publication number
- CN1017551B CN1017551B CN89109647A CN89109647A CN1017551B CN 1017551 B CN1017551 B CN 1017551B CN 89109647 A CN89109647 A CN 89109647A CN 89109647 A CN89109647 A CN 89109647A CN 1017551 B CN1017551 B CN 1017551B
- Authority
- CN
- China
- Prior art keywords
- liner
- gate seat
- seat
- sealed door
- shaft furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000007789 sealing Methods 0.000 title description 4
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 239000011800 void material Substances 0.000 claims description 3
- 230000008646 thermal stress Effects 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/18—Bell-and-hopper arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
- F27B1/20—Arrangements of devices for charging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0073—Seals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/10—Charging directly from hoppers or shoots
- F27D2003/105—Charging directly from hoppers or shoots using shutters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Furnace Details (AREA)
- Lift Valve (AREA)
- Furnace Charging Or Discharging (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Sliding Valves (AREA)
- Blast Furnaces (AREA)
- Details Of Valves (AREA)
Abstract
竖炉用的密封门具有软质边缘衬垫(22),并可在关闭位置和边侧位置之间移动,在关闭位置衬垫(22)对着围绕通道口的环形门座(24)放置,该门的边侧位置设在离开上述通道口之处。为了减少衬垫上的热应力,门座(24)具有一条连接到调温流体回路的内部环形通道(28)。
Description
本发明涉及一种用于竖炉的密封门,该门具有软质边缘衬垫,并可在关闭位置与边侧位置之间移动;在门的关闭位置,衬垫贴着一个围绕一通道口的环形门座放置,该边侧位置设在离开上述通道口之处。
竖炉,特别是鼓风炉通过一种闸而装料,该闸交替地在装填料时与大气接通,而在装填的材料流出时与该炉内部接通。为此用途,在该闸的流出口和装料口装有上述形式的密封门。因此这种下部密封门必然暴露于竖炉内部产生的高温中。一方面由于高温,另一方面由于高温的波动,迅速使该门的衬垫受疲劳;更由于这些衬垫是由相当薄弱的软质材料制成,因此必须经常更换衬垫。
此外,根据竖炉的运行,当炉腔内的温度降低而使环形门座冷却到低于热湿气体的凝结点时,水分便凝结在环座上;温度再升高时就会造成粉尘的沉积,从而形成结壳。这些结壳降低了密封效果并加速了衬垫的磨损。美国专利4,216,946的确建议过利用电阻器加热来减小在环座上形成结壳的危险。然而,这些措施没能解决衬垫过热的问题,而且也没有对处于开启位置上的衬垫加以保护。
本发明的目的是提供一种密封门,通过调节该门的温度使其不会有上述已有技术的缺陷。
为实现此目的,本发明所提供的密封门特征在于其最佳实施例,
即门的环座具有一条连接到调温流体回路的内部环形通道。
根据一个有利的实施例,发明中还有一个虚门座,密封门处于其边侧位置时与该虚门座相对,该门座也有一条连接上述调温流体回路的内部通道。
这种流体,可以是气体或液体,其温度将根据竖炉的运行特点来选择。起码,这种流体在两个门座上和衬垫上有时有冷却作用,有时具有加热作用。对门座及衬垫的加热基本发生在温度下降到凝结临界值之下时,而冷却基本发生在温度上升得超过衬垫的限定温度时。
本发明更详细的特征和特点通过从下述结合附图图解方式对一个有利实施例的说明而引出。附图中:
图1表示竖炉的装料设备的阀盖罩垂直截面的概括视图;
图2表示图1中用Ⅱ标出的图的放大视图;
图3表示图1中以Ⅲ标出的图的放大视图。
图1表示出一个围绕装料闸14的流出颈12设置的阀盖罩10,向位于盖罩10下面的炉子(未示出)装填材料的流量通过一个配料阀16进行调节。借助一种本质上已公知的密封门20保证了闸14与竖炉内部之间的密封,其细节显现于图2中。密封门20有一个环形边缘衬垫22,该衬垫是用能经受特殊温度的软质材料制成,并且在密封门20的关闭位置上,衬垫对着一个环形门座24放置,该环座栓接在一个包围流出颈12的固定支承26上。
根据本发明,环座24具有一条通过管子30连接到一个回路的内部通道28,经过该回路一种气体或液体以预定温度在通道28中循环。作为举例,根据竖炉的运行特点此温度约为80°至100℃。为了防止由于凝结而造成粉屑沉积在环座24和衬垫22上,当周围
的温度高于流体的温度时,流体对衬垫起冷却作用,当周围的温度低于流体的温度时,流体则对衬垫起加热作用。
密封门处于打开位置时,为了减小热应力及弄脏衬垫22的危险,根据本发明的一个有利实施例,在支承26的旁侧设有一个虚门座32,在向竖炉装料过程中,密封门20处于打开位置时贴着该虚门座放置。此虚门座32同样也具有一条通过管子连接到与环座24同一回路的内部通道36。因此,当密封门处于其边侧位置时,该回路中流体的作用同样也施加在衬垫22上。
当密封门20处于边侧位置时,由于虚门座32不与衬垫22执行密封作用,所以其形状可以这样设计,即该门座与衬垫22的接触面大于与环座24的接触面,因而使虚门座32与衬垫之间有较好的热传导。
另外,由于接触面越大,点作用力就越小,因此由虚门座32在衬垫22上造成的压痕将比较浅,此外,该压痕与环座24造成的压痕不相对应。
虚门座32的另外的优点在于,在开启位置上密封门20的衬垫22不再暴露在四周包围的气体中,因此自然减少了粉屑的沉积。
流体冷却的另外的优点在于不再需要惰性气体来冷却,因此也降低了工作费用。
Claims (3)
1、一种竖炉用的密封门,具有软质边缘衬垫(22)并可在关闭位置和边侧位置之间移动,在关闭位置该衬垫(22)贴着围绕一通道口的环形门座(24)放置,该边侧位置设在离开上述通道口之处,其特征在于:环座(24)具有一条连接到调温流体回路的内部环形通道(28)。
2、按权利要求1所述的密封门,其特征是:有一个虚门座(32),密封门(20)处于边侧位置时贴着该虚门座放置,该座同样具有一条连接到上述调温流体回路的通道(36)。
3、按权利要求2所述的密封门,其特征在于,虚门座的接触面大于环形门座(24)的接触面。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LU87419A LU87419A1 (fr) | 1988-12-30 | 1988-12-30 | Clapet d'etancheite pour four a cuve |
LU87419 | 1988-12-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1043986A CN1043986A (zh) | 1990-07-18 |
CN1017551B true CN1017551B (zh) | 1992-07-22 |
Family
ID=19731129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN89109647A Expired CN1017551B (zh) | 1988-12-30 | 1989-12-28 | 竖炉用的密封门 |
Country Status (13)
Country | Link |
---|---|
US (1) | US4986516A (zh) |
JP (1) | JP2844003B2 (zh) |
KR (1) | KR0134371B1 (zh) |
CN (1) | CN1017551B (zh) |
CZ (1) | CZ279362B6 (zh) |
DE (1) | DE3939170C2 (zh) |
FR (1) | FR2641357B1 (zh) |
GB (1) | GB2226621B (zh) |
IT (1) | IT1237926B (zh) |
LU (1) | LU87419A1 (zh) |
RU (1) | RU1836434C (zh) |
SK (1) | SK278234B6 (zh) |
UA (1) | UA24005A (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2724063B2 (ja) * | 1990-11-30 | 1998-03-09 | 川崎製鉄株式会社 | 高炉炉頂における原料装入制御方法 |
DE4117076A1 (de) * | 1991-05-25 | 1992-11-26 | Bayer Ag | Substituierte 4-hetaryl-pyrazoline |
LU88231A1 (fr) * | 1993-03-04 | 1994-10-03 | Wurth Paul Sa | Dispositif de chargement avec organe de réglage du débit |
US5965256A (en) * | 1997-10-14 | 1999-10-12 | Minnesota Mining And Manufacturing Company | Protective films and coatings |
CN101362109B (zh) * | 2008-09-27 | 2010-12-22 | 北京航空航天大学 | 温压综合实验箱控温密封门装置 |
LU92837B1 (en) * | 2015-09-25 | 2017-04-03 | Wurth Paul Sa | Sealing valve arrangement for a shaft furnace charging installation |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE79360C (de) * | j. W. HART-LEY u. J, KERR, Kilmarnock, Schott | Hahn für heifse Flüssigkeiten mit auf&enliegenden Dichlungsfedern | ||
US1746705A (en) * | 1922-09-29 | 1930-02-11 | Koppers Heinrich | Blast furnace |
GB273067A (en) * | 1926-05-25 | 1927-06-30 | American Gas Construction Comp | Improvements in and relating to valves |
US2488380A (en) * | 1945-03-26 | 1949-11-15 | Alfred C Danks | Butterfly valve |
GB668962A (en) * | 1949-03-09 | 1952-03-26 | Sulzer Ag | Improvements relating to machine parts with inserted valve seats |
CH347054A (fr) * | 1956-06-05 | 1960-06-15 | Commissariat Energie Atomique | Vanne d'étanchéité à tiroir |
US3616812A (en) * | 1969-07-23 | 1971-11-02 | Koppers Co Inc | Back-draft valve |
DE1949471C3 (de) * | 1969-10-01 | 1973-10-31 | Demag Ag, 4100 Duisburg | Klappendichtung fur Schachtofen, insbesondere fur im Hochdruckverfahren betreibbare Hochofen |
US3732993A (en) * | 1971-08-17 | 1973-05-15 | Selas Corp Of America | Seal for tower furnace |
BE788544A (fr) * | 1971-09-08 | 1973-01-02 | Rappold & Co Gmbh Hermann | Vanne a vent chaud |
DE2328085B1 (de) * | 1973-06-01 | 1974-07-18 | Zimmermann & Jansen Gmbh, 5160 Dueren | Wassergekühlter Hochtemperaturschieber, insbesondere Heißwindschieber |
LU73780A1 (zh) * | 1975-11-11 | 1976-06-11 | ||
DE2832476C2 (de) * | 1978-07-24 | 1979-11-22 | Hoesch Werke Ag, 4600 Dortmund | Abdichtung der Schleusen an Gegendruckhochöfen |
DE2909467C2 (de) * | 1979-03-10 | 1983-06-09 | Hermann Rappold & Co GmbH, 5160 Düren | Absperrschieber für Rohrleitungen |
NZ193698A (en) * | 1979-05-23 | 1984-05-31 | Siddons Ind | Water cooled furnace valve |
US4559967A (en) * | 1983-03-09 | 1985-12-24 | Xomox Corporation | Valve and method of making same |
DE3343299C2 (de) * | 1983-11-30 | 1985-12-12 | Hermann Rappold & Co GmbH, 5160 Düren | Absperrschieber für Rohrleitungen großer Nennweiten, insbesondere Heißwindleitungen |
JPS6251158U (zh) * | 1985-09-13 | 1987-03-30 |
-
1988
- 1988-12-30 LU LU87419A patent/LU87419A1/fr unknown
-
1989
- 1989-11-27 GB GB8926747A patent/GB2226621B/en not_active Expired - Lifetime
- 1989-11-27 DE DE3939170A patent/DE3939170C2/de not_active Expired - Lifetime
- 1989-12-08 US US07/447,992 patent/US4986516A/en not_active Expired - Fee Related
- 1989-12-14 FR FR898916551A patent/FR2641357B1/fr not_active Expired - Fee Related
- 1989-12-21 CZ CS897243A patent/CZ279362B6/cs not_active IP Right Cessation
- 1989-12-21 SK SK7243-89A patent/SK278234B6/sk unknown
- 1989-12-22 UA UA4742631A patent/UA24005A/uk unknown
- 1989-12-22 JP JP1334604A patent/JP2844003B2/ja not_active Expired - Lifetime
- 1989-12-22 RU SU894742631A patent/RU1836434C/ru active
- 1989-12-22 IT IT02282389A patent/IT1237926B/it active IP Right Grant
- 1989-12-28 KR KR1019890019904A patent/KR0134371B1/ko not_active IP Right Cessation
- 1989-12-28 CN CN89109647A patent/CN1017551B/zh not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB8926747D0 (en) | 1990-01-17 |
FR2641357B1 (fr) | 1993-01-22 |
GB2226621A (en) | 1990-07-04 |
DE3939170A1 (de) | 1990-07-05 |
KR0134371B1 (ko) | 1998-06-15 |
JP2844003B2 (ja) | 1999-01-06 |
IT1237926B (it) | 1993-06-18 |
CN1043986A (zh) | 1990-07-18 |
RU1836434C (ru) | 1993-08-23 |
JPH02225609A (ja) | 1990-09-07 |
FR2641357A1 (fr) | 1990-07-06 |
GB2226621B (en) | 1993-05-12 |
LU87419A1 (fr) | 1990-07-10 |
CZ724389A3 (en) | 1994-11-16 |
DE3939170C2 (de) | 1998-05-14 |
SK724389A3 (en) | 1996-05-08 |
CZ279362B6 (cs) | 1995-04-12 |
IT8922823A0 (it) | 1989-12-22 |
KR900010004A (ko) | 1990-07-06 |
US4986516A (en) | 1991-01-22 |
SK278234B6 (en) | 1996-05-08 |
UA24005A (uk) | 1998-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C13 | Decision | ||
GR02 | Examined patent application | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
OR01 | Other related matters | ||
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Granted publication date: 19930505 |