CA1073842A - Method of sealing around a movable closure member - Google Patents
Method of sealing around a movable closure memberInfo
- Publication number
- CA1073842A CA1073842A CA255,927A CA255927A CA1073842A CA 1073842 A CA1073842 A CA 1073842A CA 255927 A CA255927 A CA 255927A CA 1073842 A CA1073842 A CA 1073842A
- Authority
- CA
- Canada
- Prior art keywords
- putty
- skin
- closure member
- aperture
- clay
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B25/00—Doors or closures for coke ovens
- C10B25/02—Doors; Door frames
- C10B25/16—Sealing; Means for sealing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
-
- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/18—Door frames; Doors, lids, removable covers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
Doors and other closure members for apertures of high temperature plant eg. coke ovens, are sealed by a heat-resistant putty, conveniently a clay-based putty, applied in a tubular skin, eg. of polyethylene. On closing the aperture the skin deforms and bursts to distribute the putty to the mating surfaces.
.
.
Doors and other closure members for apertures of high temperature plant eg. coke ovens, are sealed by a heat-resistant putty, conveniently a clay-based putty, applied in a tubular skin, eg. of polyethylene. On closing the aperture the skin deforms and bursts to distribute the putty to the mating surfaces.
.
.
Description
-: 10'~3~Z
The present invention relates to sealing materials.
In accordance with the present invention, there is provided a method of sealing around a door or other movable closing member fitted to an aperture of an installation having a high operating temperature to prevent gaseous leakage between the mating surfaces of the movable member and the aperture which comprises inserting between the mating surfaces a high temperature putty provided in the form of at least one strip having an outer skin of coherent material.
More particularly, the invention relates to a method of sealing around a movable closure member fitted to an ; aperture of an installation to prevent gaseous leakage, said closure member having an outer face, an inner face, and an outwardly directed peripheral surface which is generally convergent in the direction of the inner face, and said installation having said aperture formed with a mating surface generally complementary to said peripheral surface said method comprising applying to the peripheral surface of the closure member a putty provided in the form of at least one strip having an outer skin of coherent material, and inserting the closure member into the aperture thereby compressing the putty in said skin so that the skin is caused to burst with spreading of the putty between said surfaces.
The method is of special interest when applied to coke ovens for sealing around such closures as doors, coal hole closures and ascension pipe inspection doors. Its effect is to reduce gaseous leakage thereby leading to increased efficiency and/or reduced atmospheric pollution~ It may also be applied to other firing installations for example in the ceramic, cement and glass industries. In some cases the skin and contained strip material deform together to fit between the mating surfaces. In other cases, bringing the mating '3842 surfaces together causes the skin to burst leaving the p~ltty to spread between the sur~aces.
Having an outer skin formed of coherent material renders the putty simple to transport, store and apply, as well as tending to extend the shelf-life thereof~ Simple readily available materials may be employed for the outer skin, conveniently thin-wal.led polyethylene or polyvinyl chloride tubing of the kind produced by blowing techniques.
Whilst it is preferred to employ, as the coherent material, an impermeable material which retains moisture, 1073~342 ~:
a permeable material may be employed and soaked, with its content of putty, in water preparatory to use.
In many instances, the structure to which the closure is to be sealed is in a hot condition. Even so, a relatively low melting thermoplastic material such as poly-thene can still give good results, retaining its coherence sufficiently for the purpose if the operation is carried out quickly. In cases where the tenacity of a thermoplastic skin i~ insufficient, it may be covered with a temperature-re~i~tant sheet material, e.g. cotton or jute fabric.
A skin of non-thermoplastic material, e.g.
regenerated cellulose film of the kind known by the trade name Cellophane, may be employed for cases where a thermo-plastic material is unsuitable.
It is generally preferred to apply the strip to the closure member rather than to the door frame or other opening which the closure member is to seal. Positioning the strip around the outside of a closure member having an outwardly directed face for mating with the face of the aperture gives a r~asonably stable assembly without providing attachments to secure the strip temporarily to the closure member. Additionally, the closure member is in many practical cases, substantially cooler than the structure to which it is applied.
The tensile strength of the strip may be improved, if required, by incorporating a tension resistant member such as a wire or a cord formed from textile fibre within - the skin. ~hiq arrangement improves the hot-handling ~ properties of the material and can be advantageous when . ,; .
.
~'73~2 the material is applied in heavy suspended lengths. For application to circular clo~ures, the strip material may be provided in annular form and, if de~ired, provided with an internal wire to hold it in its annular configuration.
The choice of a suitable putty depends upon factors which will be apparent to those skilled in the art. For some purposes a putty formed simply of clay and sufficient moisture to facilitate manipulation may be employed. In general it is preferred to formulate the composition from such materials as refractory powders, clays, cement and modifying agents such as detergents and materials which harden by hydration as described in British Patent Specification 1,161,109. Examples of suitable putties are as follows:
Weight % Weight %
Example 1 Example 2 Fireclay 55.0 27.5%
Sand 17.5 20.OyO
Water 21.5 22.0%
Portland Cement 0.75 to 3.0 Calcium Chloride CaC12.6H20 1 to 5 Detergent - 0.5%
The sand, which is to be considered optional, reduce~ sticking and renders the sealing element friable after use so that it can easily be broken and brushed away when the mating surfaces are moved apart.
The two putties shown above are readily extruded and filled into the skin of ~ausage manufacture. The calcium chloride of Example 1 soften~ the mix i~7~4'~
and retards the hardening thereof and is particularly suitable for extrudin~ to smàll diameters.
~he following description in which reference is made to the accompanying drawin~ i9 given by wag of illustr~tion. In the drawing:
Fi~.l shows a coke oven in vertical longitudinal ¢ross ~ection, Fig.2 is a plan o~ one end of the oven showing ~ door thereof open and with a strip of materi~l according to the invention positioned thereon.
ig.3 is a cross section of part of the door and adjacent door-j~mb ~fter closing, and show~ the strip of material in cross ~ection.
The coke oven of Fig.l i8 conventional. It has an oven chamber 11 with a floor 12 and a roof 13 formed with charging holes 14. Below the floor 12 i8 a structure 15 built on foundation 16 with cheakers 17 and flue~ 18. Chsmber 11 is closed by a pair o~ doors ; 20 19 and 20.
Fig. 2 is a plan showi~g door 20 opened as ~ee~ in the direction of arrow ~ in Fig.l. ~he periphery of door 20 i8 tapered to fit the four complementary sur~ace~
of the door ~amb. The ~ertical sur~ces are shown at 21 and 22. With tha door open a thin-walled tube of polyethylene 23 filled with a putty 24 according to Example 1 or Example 2, and optionally reinforced , tensionally with an internal wire or cord 25 (Fig.4) ; is fitted across the top of, and around the sides and bottom 26 of the door. On closing the door, the tube 23 deforms, stretches and bur~ts to provide a filling ,' ' . .
of the putty between the door and the door jamb.
In use, the surfaces of the door jamb and the periphery of the door become uneven from corrosion and the deposition of tar and ¢oke-like deposits so that a gas-tight mating fit of machined mating surfaces is difficult to maintain~
. . The spaoing between the surfaces, and the thickness of the tube 23 are exaggerated in Figs. 3 and 4 respectively : for clarity of illustration.
It iq to be understood that the exampleæ, and the application of the invention described with reference to the drawing, are provided for pUrpOSe5 of illustration only a~d that variou~ depart~res ma~ be made therefrom by those skilled in the art, alI within the ~pirit and . ~cope of the invention. . ~ :
. , ; ~ ' .
.
: . - ' ' ~.. : -. ~ ', '',' ' ' : ,.
. . . .
, . ' - . "
. ., .
, .
. . ~ . .
: . ' ,: .
, ~ , ' ' ' . ' .
.
~ ~ ' -.
- '' . . ' ' , ', ., . ... ' ' ' ':
The present invention relates to sealing materials.
In accordance with the present invention, there is provided a method of sealing around a door or other movable closing member fitted to an aperture of an installation having a high operating temperature to prevent gaseous leakage between the mating surfaces of the movable member and the aperture which comprises inserting between the mating surfaces a high temperature putty provided in the form of at least one strip having an outer skin of coherent material.
More particularly, the invention relates to a method of sealing around a movable closure member fitted to an ; aperture of an installation to prevent gaseous leakage, said closure member having an outer face, an inner face, and an outwardly directed peripheral surface which is generally convergent in the direction of the inner face, and said installation having said aperture formed with a mating surface generally complementary to said peripheral surface said method comprising applying to the peripheral surface of the closure member a putty provided in the form of at least one strip having an outer skin of coherent material, and inserting the closure member into the aperture thereby compressing the putty in said skin so that the skin is caused to burst with spreading of the putty between said surfaces.
The method is of special interest when applied to coke ovens for sealing around such closures as doors, coal hole closures and ascension pipe inspection doors. Its effect is to reduce gaseous leakage thereby leading to increased efficiency and/or reduced atmospheric pollution~ It may also be applied to other firing installations for example in the ceramic, cement and glass industries. In some cases the skin and contained strip material deform together to fit between the mating surfaces. In other cases, bringing the mating '3842 surfaces together causes the skin to burst leaving the p~ltty to spread between the sur~aces.
Having an outer skin formed of coherent material renders the putty simple to transport, store and apply, as well as tending to extend the shelf-life thereof~ Simple readily available materials may be employed for the outer skin, conveniently thin-wal.led polyethylene or polyvinyl chloride tubing of the kind produced by blowing techniques.
Whilst it is preferred to employ, as the coherent material, an impermeable material which retains moisture, 1073~342 ~:
a permeable material may be employed and soaked, with its content of putty, in water preparatory to use.
In many instances, the structure to which the closure is to be sealed is in a hot condition. Even so, a relatively low melting thermoplastic material such as poly-thene can still give good results, retaining its coherence sufficiently for the purpose if the operation is carried out quickly. In cases where the tenacity of a thermoplastic skin i~ insufficient, it may be covered with a temperature-re~i~tant sheet material, e.g. cotton or jute fabric.
A skin of non-thermoplastic material, e.g.
regenerated cellulose film of the kind known by the trade name Cellophane, may be employed for cases where a thermo-plastic material is unsuitable.
It is generally preferred to apply the strip to the closure member rather than to the door frame or other opening which the closure member is to seal. Positioning the strip around the outside of a closure member having an outwardly directed face for mating with the face of the aperture gives a r~asonably stable assembly without providing attachments to secure the strip temporarily to the closure member. Additionally, the closure member is in many practical cases, substantially cooler than the structure to which it is applied.
The tensile strength of the strip may be improved, if required, by incorporating a tension resistant member such as a wire or a cord formed from textile fibre within - the skin. ~hiq arrangement improves the hot-handling ~ properties of the material and can be advantageous when . ,; .
.
~'73~2 the material is applied in heavy suspended lengths. For application to circular clo~ures, the strip material may be provided in annular form and, if de~ired, provided with an internal wire to hold it in its annular configuration.
The choice of a suitable putty depends upon factors which will be apparent to those skilled in the art. For some purposes a putty formed simply of clay and sufficient moisture to facilitate manipulation may be employed. In general it is preferred to formulate the composition from such materials as refractory powders, clays, cement and modifying agents such as detergents and materials which harden by hydration as described in British Patent Specification 1,161,109. Examples of suitable putties are as follows:
Weight % Weight %
Example 1 Example 2 Fireclay 55.0 27.5%
Sand 17.5 20.OyO
Water 21.5 22.0%
Portland Cement 0.75 to 3.0 Calcium Chloride CaC12.6H20 1 to 5 Detergent - 0.5%
The sand, which is to be considered optional, reduce~ sticking and renders the sealing element friable after use so that it can easily be broken and brushed away when the mating surfaces are moved apart.
The two putties shown above are readily extruded and filled into the skin of ~ausage manufacture. The calcium chloride of Example 1 soften~ the mix i~7~4'~
and retards the hardening thereof and is particularly suitable for extrudin~ to smàll diameters.
~he following description in which reference is made to the accompanying drawin~ i9 given by wag of illustr~tion. In the drawing:
Fi~.l shows a coke oven in vertical longitudinal ¢ross ~ection, Fig.2 is a plan o~ one end of the oven showing ~ door thereof open and with a strip of materi~l according to the invention positioned thereon.
ig.3 is a cross section of part of the door and adjacent door-j~mb ~fter closing, and show~ the strip of material in cross ~ection.
The coke oven of Fig.l i8 conventional. It has an oven chamber 11 with a floor 12 and a roof 13 formed with charging holes 14. Below the floor 12 i8 a structure 15 built on foundation 16 with cheakers 17 and flue~ 18. Chsmber 11 is closed by a pair o~ doors ; 20 19 and 20.
Fig. 2 is a plan showi~g door 20 opened as ~ee~ in the direction of arrow ~ in Fig.l. ~he periphery of door 20 i8 tapered to fit the four complementary sur~ace~
of the door ~amb. The ~ertical sur~ces are shown at 21 and 22. With tha door open a thin-walled tube of polyethylene 23 filled with a putty 24 according to Example 1 or Example 2, and optionally reinforced , tensionally with an internal wire or cord 25 (Fig.4) ; is fitted across the top of, and around the sides and bottom 26 of the door. On closing the door, the tube 23 deforms, stretches and bur~ts to provide a filling ,' ' . .
of the putty between the door and the door jamb.
In use, the surfaces of the door jamb and the periphery of the door become uneven from corrosion and the deposition of tar and ¢oke-like deposits so that a gas-tight mating fit of machined mating surfaces is difficult to maintain~
. . The spaoing between the surfaces, and the thickness of the tube 23 are exaggerated in Figs. 3 and 4 respectively : for clarity of illustration.
It iq to be understood that the exampleæ, and the application of the invention described with reference to the drawing, are provided for pUrpOSe5 of illustration only a~d that variou~ depart~res ma~ be made therefrom by those skilled in the art, alI within the ~pirit and . ~cope of the invention. . ~ :
. , ; ~ ' .
.
: . - ' ' ~.. : -. ~ ', '',' ' ' : ,.
. . . .
, . ' - . "
. ., .
, .
. . ~ . .
: . ' ,: .
, ~ , ' ' ' . ' .
.
~ ~ ' -.
- '' . . ' ' , ', ., . ... ' ' ' ':
Claims (10)
1. A method of sealing around a movable closure member fitted to an aperture of an installation to prevent gaseous leakage, said closure member having an outer face, an inner face, and an outwardly directed peripheral surface which is generally convergent in the direction of the inner face, and said installation having said aperture formed with a mating surface generally complementary to said peripheral surface, said method comprising applying to the peripheral surface of the closure member a putty provided in the form of at least one strip having an outer skin of coherent material, and insert-ing the closure member into the aperture thereby compressing the putty in said skin so that the skin is caused to burst with spreading of the putty between said surfaces.
2. A method according to claim 1 in which the installation is a coke oven.
3. A method according to claim 1 in which the installa-tion is a coke oven and the closure member is a door thereof.
4. A method according to any one of claims 1 to 3 in which the skin is formed from polyethylene or polyvinyl chloride tubing.
5. A method according to any one of claims 1 to 3 in which the putty is formed of moist clay.
6. A method according to any one of claims 1 to in which the putty is formed from clay, and calcium chloride or a detergent.
7. A method according to claim 1 in which a tensile resistant member is incorporated within the skin.
8. A method according to claim 7 in which said member is a wire.
9. A method according to claim 7 in which said member is a cord formed of textile fibre.
10. A method according to any one of claims 1 to 3, in which the putty is a clay putty, the skin is formed of a moisture permeable material and the strip is soaked, with its content of putty, in water preparatory to use.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB27657/75A GB1535046A (en) | 1975-07-01 | 1975-07-01 | Sealing materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1073842A true CA1073842A (en) | 1980-03-18 |
Family
ID=10263138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA255,927A Expired CA1073842A (en) | 1975-07-01 | 1976-06-29 | Method of sealing around a movable closure member |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS528002A (en) |
| CA (1) | CA1073842A (en) |
| DE (1) | DE2628784A1 (en) |
| FR (1) | FR2316499A1 (en) |
| GB (1) | GB1535046A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2845045C2 (en) * | 1978-10-16 | 1981-09-24 | Fa. Carl Still Gmbh & Co Kg, 4350 Recklinghausen | Method and device for sealing doors on horizontal chamber furnaces |
-
1975
- 1975-07-01 GB GB27657/75A patent/GB1535046A/en not_active Expired
-
1976
- 1976-06-25 FR FR7619339A patent/FR2316499A1/en not_active Withdrawn
- 1976-06-26 DE DE19762628784 patent/DE2628784A1/en not_active Withdrawn
- 1976-06-29 JP JP51078466A patent/JPS528002A/en active Pending
- 1976-06-29 CA CA255,927A patent/CA1073842A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2316499A1 (en) | 1977-01-28 |
| JPS528002A (en) | 1977-01-21 |
| DE2628784A1 (en) | 1977-01-27 |
| GB1535046A (en) | 1978-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2961142D1 (en) | Thermoexpandable sealing material for cracks, interstices or the like and process for sealing walls or doors in case of fire | |
| US4172598A (en) | Sealing methods | |
| CA1073842A (en) | Method of sealing around a movable closure member | |
| US3616108A (en) | Refractory construction units with high-temperature bonding joint fillers and method of making said units | |
| BR0012799A (en) | Resin-coated aggregates and forming processes for refractory configurations | |
| CN103306388B (en) | Vacuum insulation plate and manufacturing method thereof | |
| US4425191A (en) | Arrangement for minimizing leakage from heated chambers and method for making same | |
| CN1303226C (en) | Pit heating furnace cover for implementing sealing state work piece transfer | |
| CN203412122U (en) | Vacuum thermal insulation board | |
| US1168062A (en) | Method of sealing or luting molds. | |
| CN206308895U (en) | A kind of light-weight environment-friendly pure water silt wallboard | |
| CA1173778A (en) | Arrangement for minimizing leakage from heated chambers and method for making same | |
| CN205475817U (en) | Wall structure who gives sound insulation and prevent fires | |
| CN100362267C (en) | Fire resistant inorganic seal gasket, and preparation method | |
| CN219493439U (en) | Pipeline joint structure | |
| CN107557026B (en) | A kind of dry coke quenching regulating rod sealing device | |
| CN211522095U (en) | Novel coke oven door with surface compounded with ceramic material lining bricks | |
| CN203393981U (en) | Novel fireproof safe flue gas exhaust channel | |
| ATE31653T1 (en) | FIRE WIRE. | |
| DE456095C (en) | Slide lock for oven doors | |
| JPS588343B2 (en) | Double tube forming equipment | |
| CN207190889U (en) | A kind of construction material detects mobile laboratory | |
| KR950010170B1 (en) | Making method of closing plug & the same goods | |
| CN108534554A (en) | A kind of automatic wicket of high-temperature-resistant thermal-insulation | |
| JPS61223087A (en) | Method for preventing leak of gas from door frame of coke oven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |