CA1327946C - Cyclone separator having water-steam cooled walls - Google Patents
Cyclone separator having water-steam cooled wallsInfo
- Publication number
- CA1327946C CA1327946C CA 581869 CA581869A CA1327946C CA 1327946 C CA1327946 C CA 1327946C CA 581869 CA581869 CA 581869 CA 581869 A CA581869 A CA 581869A CA 1327946 C CA1327946 C CA 1327946C
- Authority
- CA
- Canada
- Prior art keywords
- tubes
- inner cylinder
- outer cylinder
- gases
- annular chamber
- 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 - Fee Related
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Abstract
CYCLONE SEPARATOR HAVING WATER-STEAM COOLED WALLS
Abstract of the Disclosure A cyclone separator in which an outer cylinder is formed by a plurality of vertically-extending, spaced, parallel tubes and extends around an inner pipe in a coaxial relationship therewith to define an annular chamber. A portion of the tubes forming the outer cylinder are bent out of the plane of the cylinder to form an inlet opening in a tangential relationship to the annular chamber for receiving gases containing solid particles and directing same through the annular chamber for separating the solid particles from the gas by centrifugal forces. The tubes are bent to form a roof for the annular chamber and to form a discharge chamber for the separated gases.
Abstract of the Disclosure A cyclone separator in which an outer cylinder is formed by a plurality of vertically-extending, spaced, parallel tubes and extends around an inner pipe in a coaxial relationship therewith to define an annular chamber. A portion of the tubes forming the outer cylinder are bent out of the plane of the cylinder to form an inlet opening in a tangential relationship to the annular chamber for receiving gases containing solid particles and directing same through the annular chamber for separating the solid particles from the gas by centrifugal forces. The tubes are bent to form a roof for the annular chamber and to form a discharge chamber for the separated gases.
Description
13279~
CYCLONE SEPARATOR _AVI~G wATER-STEAM COOLED WALLS
This application is related to Canadian Serial No.
5S9,794 filed FebruarY 25, 1988.
Backqround of the Invention This invention relates to a cyclone separator and, more particularly, to such a separator for separating solid fuel particles from gases discharged from a combustion system or the like.
Conventional cyclone separators are normally provided with a ~onolithic e~ternal refractory wall which is abrasion resistant and insulative so that the outer casing runs relativelY cool. Typically, these walls are formed by an insulative refractory material sandwiched between an inner hard refractory material and an outer metal casing.
In order to achieve proper insulation, these layers must -- 1327~
-be rel~tively thick which adds to the bulk, weight, and cost of the separator. Also, the outside metal casing of these designs cannot be further insulated from the outside since to do so could raise its temperature as high as 1500F which is far in excess of the maximum temperature it can tolerate.
Further, most conventional cyclone separators require relatively expensive, high temperature, refractory-lined ductwork and expansion joints between the reactor and the cyclone, and between the cyclone and the heat recovery section, which are fairly sophisticated and expensive.
Still further, conventional separators formed in the above manner require a relatively long time to heat up before going online to eliminate premature cracking of the refractory walls, which is inconvenient and adds to the cost of the process. Also, cyclone separators of this type may require a separate roof tube circuit which still further adds to the cost of the system.
SummarY of the Invention The present invention seeks to provide a cyclone separator in which heat losses are reduced and the requirement for internal refractory insulation is minimized.
'~ .
. ~ :
~ .:
- ~ .
1327~
The present invention further seeks to provide a cyclone separator of the above type in which the need for expensive, high-temperature, refractory-lined ductwork and expansion joints between the furnace and the cyclone separator and between the latter and the heat recovery section are minimized.
More particularly, the invention pertains to a cyclone separator comprising an inner cylinder, an outer cylinder extending around the inner cylinder in a coaxial relationship to define an annular chamber between the two cylinders, the outer cylinder comprising a plurality of tubes extending vertically and circumferentially in a parallel relationship for at least a portion of their lengths. A ring header is connected to the lower ends of the tubes for supplying cooling fluid to the tubes and a hopper extends downwardly from the ring header. Means is provided for directing gases containing solid particles through the annular chamber for separating the solid particles from the gases by centrifugal forces, the separated gases exiting through the inner cylinder and the separated solids falling to the hopper. The upper end portions of the tubes are bent to form a roof for the annular chamber and to form an outlet chamber for the separated gases and there is means for passing water or steam or a steam and water mixture through the tubes to cool the outer cylinder.
In one aspect the outlet chamber has a floor and wherein the inner cylinder is disposed so that an upper portion of the inner cylinder extends above a plane formed by the floor of the outlet A~
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. .. . .
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13279~
chamber.
In another aspect a continuous fin extends between adjacent tubes and a plurality of tiles extend adjacent an inner wall of the outer cylinder with means connecting the tiles to the fins.
Refractory is disposed between the fins and the tiles.
In a still further aspect a continuous fin extends from corresponding portions of adjacent tubes to form a gas tight structure.
Further still in another aspect each of the bent upper end portions of the tubes include a horizontal portion extending from the outer cylinder to the inner cylinder, a vertical portion engaging a corresponding portion of the inner cylinder along the length of the vertical portion and another horizontal portion extending outwardly from the inner cylinder to form a floor of the outlet chamber.
Brief Description of the Drawings The above brief description as well as further objects, features and advantages of the present invention will be more fully appreciated by reference to the following detailed description of presently pre-ferred but nonetheless illustrative embodiments in accordance with the present invention when taken in conjunction with the accompanying drawings wherein:
Fig. l is a schematic view of the cyclone separator of the present invention and an adjacent heat recovery area of a boiler system Fig. 2 is an enlarged perspective view of the tubes forming the outer cylinder of the separator of Fig. l; and .. ' : ' ' ' . : . - ' `"
~ _5_ 1327~6 Fig. 3 is an enlarged, cross-sectional view taken along the portion of the wall of the outer cylinder of Fig. 3 designated by the line 3-3, and showing the insulative materials surrounding the tubes.
Description of the Preferred Embodi~ent Referring to Figs. 1 & 2 of the drawings, the reference numeral 10 refers in general to the cyclone separator of the present invention which includes a lower ring header 12 and an upper header 14. The header 12 extends immediately above, and is connected to, a hopper 16 disposed at the lower portion of the separator 10.
A group of vertically-extending, spaced, parallel tubes 20 are connected at their lower ends to the header 12 and extend vertically for the greater parts of their lengths to form a right circular cylinder 22.
A portion of the tubes 20 are bent out of the plane of the cylinder 22, as shown by the reference numerals 20a, and, as shown in Fig. 2, approximately half of these bent tube portions are bent away from the other half to form an inlet passage 24 to the interior of the cylinder for reasons that will be described.
At the upper end of the cylinder 22 the tubes 20 are bent radially inwardly, as shown by the reference numeral 20b, and then upwardly as shown by the reference numeral -6- 1327~
20c, to define a circular opening which, of course, is of a diameter less than that of the diameter of the cylinder 22. The tubes 20 are then bent radially outwardly as shown by the reference numeral 20d, and a portion of these bent tube portions 20d are bent upwardly as shown by the reference numeral 20e. As better shown in Fig. 2 the best tube portions 20e form approximately one-half of a right circular cylinder 26. The remaining portions of the bent tube portions 20d extend horizontally are bent at right angles in a horizontal plane, and then vertically, as shown by the reference numeral 20f, to form two vertically extending, spaced walls one of which is shown by the reference numeral 28. The tube portions 20e and the vertically extending tube portions 20f are bent to form lS horizontal tube portions 20g which form a roof 30 for an enclosure 32 defined by the tube portions 20d, the partial cylinder 26 and the walls 28.
The enclosure 32 has an outlet opening 32a which discharges to a heat recovery area, shown in general by the reference numeral 36.
The lower header 12 can be connected to a source of cooling fluid, such as water which passes from the header 12, through the tubes 20, and into the upper header 14 .- , ~................ , , _7_ iq 2 ~
which is converted to a header 37 rorming a portion of the water flow circuitry of the heat recovery area 36.
An inner pipe, or barrel, 38 is disposed within the cylinder 22, is formed from a solid, metallic material, such as stainless steel, and has an upper end portion extending slightly above the plane of the tube portions 20d. The pipe 38 extends immediately adjacent the tube portions 20c, and its length substantially coincides with the inlet passage formed by the bent tube portions 20a.
Thus, an annular Chamber 3~ is formed between the outer surface of the pipe 38 and the inner surface of the cylinder 22, and the tube portions 20b form a roof for said chamber.
The tubes 20 are disposed between an insulative material and an erosion preventing structure which are omitted from Fig. 2 for the convenience of presentation but which are shown in Fig. 3. More particularly, a fin -40 is welded to, and extends from, the corresponding walls of each pair of adjacent tubes 20. A lagging, or panel 42 of a lightweight material, such as aluminum, is provided in a slightly spaced relationship to the plane of the tubes 20, and a heat insulative material 44 is disposed between the outer surface of the tubes 20 and the inner wall of the lagging ~4. ~ plurality of tiles 46 extend adjacent the inner wall of the cylinder 22 and are , . . - .
.,. ~ . .
--- 1327~6 connected by anchors 48 extending from the inner walls of the tubes 20. A layer of refractory material 50 is disposed between the tiles 46 and the tubes 20.
In operation, and assuming the separator lO of the present invention is part of a boiler system including a -fluidized bed reactor, or the like, disposed adjacent to the separator, the inlet passage 24 formed by the bent tube portions 20a receives hot gases from the reactor which gases contain entrained fine solid particulate fuel, ash, limestone, etc. from the fluidized bed. The gases containing the particulate material thus enter and swirl around in the annular chamber 34 defined between the cylinder 22 and the inner pipe 38, and the entrained solid particles are propelled by centrifugal forces against the inner wall of the cylinder 22 where they collect and fall downwardly by gravity into the hopper 16. The relatively clean gases remaining in the annular chamber 34 are prevented from flowing upwardly by the roof formed by the tube portions 20b and their corresponding fins 40, and thus enter the pipe 38 through its lower end. The gases thus pass through the length of the pipe 38 before exiting from the upper end of the pipe to the enclosure 32 which directs the hot gases radially outwardly to the heat recovery area 36.
_9_ 13279~6 water or steam from an external source is passed into the lower header 12 and passes upwardly through the tubes 20 before exiting, via the upper header 14 to the header 37 of the heat recovery area 36. The water thus maintains the cylinder 22 and the enclosure 32 at a relatively low temperature.
Several advantages result from the foregoing arrangement. For example, the separator of the present invention reduces heat losses and minimizes the requirement for internal refractory insulation. Also, the bulk, weight, and cost of the separator of the present invention is much less than that of conventional separators. The separator of the present invention also minimizes the need for expensive high temperature refractory-lined ductwork and expansion joints between the reactor and cyclone separator, and between the latter and the heat recovery section. Still further, by utilizing the tube portions 20b to form a roof for the annular chamber 34 between the cylinder 22 and the pipe 38, the requirement for additional roof circuitry is eliminated.
A latitude of modification, change and substitution is intended in the foregoing disclosure and in some instances some features of the invention will be employed without a corresponding use of other features.
.
-10- 1327~346 Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the scope of the invention therein.
CYCLONE SEPARATOR _AVI~G wATER-STEAM COOLED WALLS
This application is related to Canadian Serial No.
5S9,794 filed FebruarY 25, 1988.
Backqround of the Invention This invention relates to a cyclone separator and, more particularly, to such a separator for separating solid fuel particles from gases discharged from a combustion system or the like.
Conventional cyclone separators are normally provided with a ~onolithic e~ternal refractory wall which is abrasion resistant and insulative so that the outer casing runs relativelY cool. Typically, these walls are formed by an insulative refractory material sandwiched between an inner hard refractory material and an outer metal casing.
In order to achieve proper insulation, these layers must -- 1327~
-be rel~tively thick which adds to the bulk, weight, and cost of the separator. Also, the outside metal casing of these designs cannot be further insulated from the outside since to do so could raise its temperature as high as 1500F which is far in excess of the maximum temperature it can tolerate.
Further, most conventional cyclone separators require relatively expensive, high temperature, refractory-lined ductwork and expansion joints between the reactor and the cyclone, and between the cyclone and the heat recovery section, which are fairly sophisticated and expensive.
Still further, conventional separators formed in the above manner require a relatively long time to heat up before going online to eliminate premature cracking of the refractory walls, which is inconvenient and adds to the cost of the process. Also, cyclone separators of this type may require a separate roof tube circuit which still further adds to the cost of the system.
SummarY of the Invention The present invention seeks to provide a cyclone separator in which heat losses are reduced and the requirement for internal refractory insulation is minimized.
'~ .
. ~ :
~ .:
- ~ .
1327~
The present invention further seeks to provide a cyclone separator of the above type in which the need for expensive, high-temperature, refractory-lined ductwork and expansion joints between the furnace and the cyclone separator and between the latter and the heat recovery section are minimized.
More particularly, the invention pertains to a cyclone separator comprising an inner cylinder, an outer cylinder extending around the inner cylinder in a coaxial relationship to define an annular chamber between the two cylinders, the outer cylinder comprising a plurality of tubes extending vertically and circumferentially in a parallel relationship for at least a portion of their lengths. A ring header is connected to the lower ends of the tubes for supplying cooling fluid to the tubes and a hopper extends downwardly from the ring header. Means is provided for directing gases containing solid particles through the annular chamber for separating the solid particles from the gases by centrifugal forces, the separated gases exiting through the inner cylinder and the separated solids falling to the hopper. The upper end portions of the tubes are bent to form a roof for the annular chamber and to form an outlet chamber for the separated gases and there is means for passing water or steam or a steam and water mixture through the tubes to cool the outer cylinder.
In one aspect the outlet chamber has a floor and wherein the inner cylinder is disposed so that an upper portion of the inner cylinder extends above a plane formed by the floor of the outlet A~
, . . . .. .... . ~ , .. , .,., , . ~ . .. . ...
. .. . .
.. . ~ , . .. .
, . ~ . ~ . . . .. .
.. ~ . . . ; . .. . ..
.. . , , ~ . ~ . . .
^\
13279~
chamber.
In another aspect a continuous fin extends between adjacent tubes and a plurality of tiles extend adjacent an inner wall of the outer cylinder with means connecting the tiles to the fins.
Refractory is disposed between the fins and the tiles.
In a still further aspect a continuous fin extends from corresponding portions of adjacent tubes to form a gas tight structure.
Further still in another aspect each of the bent upper end portions of the tubes include a horizontal portion extending from the outer cylinder to the inner cylinder, a vertical portion engaging a corresponding portion of the inner cylinder along the length of the vertical portion and another horizontal portion extending outwardly from the inner cylinder to form a floor of the outlet chamber.
Brief Description of the Drawings The above brief description as well as further objects, features and advantages of the present invention will be more fully appreciated by reference to the following detailed description of presently pre-ferred but nonetheless illustrative embodiments in accordance with the present invention when taken in conjunction with the accompanying drawings wherein:
Fig. l is a schematic view of the cyclone separator of the present invention and an adjacent heat recovery area of a boiler system Fig. 2 is an enlarged perspective view of the tubes forming the outer cylinder of the separator of Fig. l; and .. ' : ' ' ' . : . - ' `"
~ _5_ 1327~6 Fig. 3 is an enlarged, cross-sectional view taken along the portion of the wall of the outer cylinder of Fig. 3 designated by the line 3-3, and showing the insulative materials surrounding the tubes.
Description of the Preferred Embodi~ent Referring to Figs. 1 & 2 of the drawings, the reference numeral 10 refers in general to the cyclone separator of the present invention which includes a lower ring header 12 and an upper header 14. The header 12 extends immediately above, and is connected to, a hopper 16 disposed at the lower portion of the separator 10.
A group of vertically-extending, spaced, parallel tubes 20 are connected at their lower ends to the header 12 and extend vertically for the greater parts of their lengths to form a right circular cylinder 22.
A portion of the tubes 20 are bent out of the plane of the cylinder 22, as shown by the reference numerals 20a, and, as shown in Fig. 2, approximately half of these bent tube portions are bent away from the other half to form an inlet passage 24 to the interior of the cylinder for reasons that will be described.
At the upper end of the cylinder 22 the tubes 20 are bent radially inwardly, as shown by the reference numeral 20b, and then upwardly as shown by the reference numeral -6- 1327~
20c, to define a circular opening which, of course, is of a diameter less than that of the diameter of the cylinder 22. The tubes 20 are then bent radially outwardly as shown by the reference numeral 20d, and a portion of these bent tube portions 20d are bent upwardly as shown by the reference numeral 20e. As better shown in Fig. 2 the best tube portions 20e form approximately one-half of a right circular cylinder 26. The remaining portions of the bent tube portions 20d extend horizontally are bent at right angles in a horizontal plane, and then vertically, as shown by the reference numeral 20f, to form two vertically extending, spaced walls one of which is shown by the reference numeral 28. The tube portions 20e and the vertically extending tube portions 20f are bent to form lS horizontal tube portions 20g which form a roof 30 for an enclosure 32 defined by the tube portions 20d, the partial cylinder 26 and the walls 28.
The enclosure 32 has an outlet opening 32a which discharges to a heat recovery area, shown in general by the reference numeral 36.
The lower header 12 can be connected to a source of cooling fluid, such as water which passes from the header 12, through the tubes 20, and into the upper header 14 .- , ~................ , , _7_ iq 2 ~
which is converted to a header 37 rorming a portion of the water flow circuitry of the heat recovery area 36.
An inner pipe, or barrel, 38 is disposed within the cylinder 22, is formed from a solid, metallic material, such as stainless steel, and has an upper end portion extending slightly above the plane of the tube portions 20d. The pipe 38 extends immediately adjacent the tube portions 20c, and its length substantially coincides with the inlet passage formed by the bent tube portions 20a.
Thus, an annular Chamber 3~ is formed between the outer surface of the pipe 38 and the inner surface of the cylinder 22, and the tube portions 20b form a roof for said chamber.
The tubes 20 are disposed between an insulative material and an erosion preventing structure which are omitted from Fig. 2 for the convenience of presentation but which are shown in Fig. 3. More particularly, a fin -40 is welded to, and extends from, the corresponding walls of each pair of adjacent tubes 20. A lagging, or panel 42 of a lightweight material, such as aluminum, is provided in a slightly spaced relationship to the plane of the tubes 20, and a heat insulative material 44 is disposed between the outer surface of the tubes 20 and the inner wall of the lagging ~4. ~ plurality of tiles 46 extend adjacent the inner wall of the cylinder 22 and are , . . - .
.,. ~ . .
--- 1327~6 connected by anchors 48 extending from the inner walls of the tubes 20. A layer of refractory material 50 is disposed between the tiles 46 and the tubes 20.
In operation, and assuming the separator lO of the present invention is part of a boiler system including a -fluidized bed reactor, or the like, disposed adjacent to the separator, the inlet passage 24 formed by the bent tube portions 20a receives hot gases from the reactor which gases contain entrained fine solid particulate fuel, ash, limestone, etc. from the fluidized bed. The gases containing the particulate material thus enter and swirl around in the annular chamber 34 defined between the cylinder 22 and the inner pipe 38, and the entrained solid particles are propelled by centrifugal forces against the inner wall of the cylinder 22 where they collect and fall downwardly by gravity into the hopper 16. The relatively clean gases remaining in the annular chamber 34 are prevented from flowing upwardly by the roof formed by the tube portions 20b and their corresponding fins 40, and thus enter the pipe 38 through its lower end. The gases thus pass through the length of the pipe 38 before exiting from the upper end of the pipe to the enclosure 32 which directs the hot gases radially outwardly to the heat recovery area 36.
_9_ 13279~6 water or steam from an external source is passed into the lower header 12 and passes upwardly through the tubes 20 before exiting, via the upper header 14 to the header 37 of the heat recovery area 36. The water thus maintains the cylinder 22 and the enclosure 32 at a relatively low temperature.
Several advantages result from the foregoing arrangement. For example, the separator of the present invention reduces heat losses and minimizes the requirement for internal refractory insulation. Also, the bulk, weight, and cost of the separator of the present invention is much less than that of conventional separators. The separator of the present invention also minimizes the need for expensive high temperature refractory-lined ductwork and expansion joints between the reactor and cyclone separator, and between the latter and the heat recovery section. Still further, by utilizing the tube portions 20b to form a roof for the annular chamber 34 between the cylinder 22 and the pipe 38, the requirement for additional roof circuitry is eliminated.
A latitude of modification, change and substitution is intended in the foregoing disclosure and in some instances some features of the invention will be employed without a corresponding use of other features.
.
-10- 1327~346 Accordingly, it is appropriate that the appended claims be construed broadly and in a manner consistent with the scope of the invention therein.
Claims (9)
1. A cyclone separator comprising an inner cylinder, on outer cylinder extending around said inner cylinder in a coaxial relationship to define an annular chamber between the two cylinders, said outer cylinder comprising a plurality of tubes extending vertically and circumferentially in a parallel relationship for at least a portion of their lengths, a ring header connected to the lower ends of said tubes for supplying cooling fluid to said tubes, a hopper extending downwardly from solid ring header, means for directing gases containing solid particles through said annular chamber for separating the solid particles from said gases by centrifugal forces, the separated gases exiting through said inner cylinder and the separated solids falling to said hopper, the upper end portions of said tubes being bent to form a roof for said annular chamber and to form an outlet chamber for the separated gases, and means for passing water or steam or a steam and water mixture through said tubes to cool said outer cylinder; and said outlet chamber having a floor and wherein said inner cylinder is disposed that an upper portion of said inner cylinder extends above a plane formed by said floor of said outlet chamber.
2. A cyclone separator comprising an inner cylinder, an outer cylinder extending around said inner cylinder in a coaxial relationship to define an annular chamber between the two cylinders, said outer cylinder comprising a plurality of tubes extending vertically and circumferentially in a parallel relationship for at least a portion of their lengths, a ring header connected to the lower ends of said tubes for supplying cooling fluid to said tubes, a hopper extending downwardly from said ring header, means for directing gases containing solid particles through said annular chamber for separating the solid particles from said gases by centrifugal forces, the separated gases exiting through said inner cylinder and the separated solids falling to said hopper, the upper end portions of said tubes being bent to form a roof for said annular chamber and to form an outlet chamber for the separated gases and means for passing water or steam or a steam and water mixture through said tubes to cool said outer cylinder; and a continuous fin extending between adjacent tubes, a plurality of tiles extending adjacent an inner wall of said outer cylinder and means connecting said tiles to said fins and refractory disposed between said fins and said tiles.
3. A cyclone separator comprising an inner cylinder, an outer cylinder extending around said inner cylinder in a coaxial relationship to define an annular chamber between the two cylinders, said outer cylinder comprising a plurality of tubes extending vertically and circumferentially in a parallel relationship for at least a portion of their lengths, a ring header connected to the lower ends of said tubes for supplying cooling fluid to said tubes, a hopper extending downwardly from said ring header, means for directing gases containing solid particles through said annular chamber for separating the solid particles from said gases by centrifugal forces, the separated gases exiting through said inner cylinder and the separated solids falling to said hopper, the upper end portions of said tubes being bent to form a roof for said annular chamber and to form an outlet chamber for the separated gases and means for passing water or steam or a steam and water mixture through said tubes to cool said outer cylinder; and a continuous fin extending from corresponding portions of adjacent tubes to form a gas tight structure.
4. The separator of claim 2 or 3 wherein said outlet chamber has a floor and wherein said inner cylinder is disposed so that an upper portion of said inner cylinder extends above a plane formed by said floor of said outlet chamber.
5. The separator of claim 2 or 3 wherein said tubes are disposed in a spaced relationship.
6. The separator of claim 2 or 3 further comprising refractory means extending around the inner and outer surfaces of said outer cylinder.
7. The separator of claim 2 or 3 wherein said directing means is formed by a portion of said tubes bent from the plane of the outer cylinder to form an inlet opening for receiving said gases.
8. The separator of claim 2 or 3 wherein each of said bent upper end portions of said tubes include a horizontal portion extending from said outer cylinder to said inner cylinder, a vertical portion engaging a corresponding portion of said inner cylinder along the length of said vertical portion and another horizontal portion extending outwardly from said inner cylinder to form a floor of said outlet chamber.
9. A cyclone separator comprising an inner cylinder, an outer cylinder extending around said inner cylinder in a coaxial relationship to define an annular chamber between the two cylinders, said outer cylinder comprising a plurality of tubes extending vertically and circumferentially in a parallel relationship for at least a portion of their lengths, a ring header connected to the lower ends of said tubes for supplying cooling fluid to said tubes, a hopper extending downwardly from said ring header, means for directing gases containing solid particles through said annular chamber for separating the solid particles from said gases by centrifugal forces, the separated gases exiting through said inner cylinder and the separated solids falling to said hopper, the upper end portions of said tubes being bent to form a roof for said annular chamber and to form an outlet chamber for the separated gases and means for passing water or steam or a steam and water mixture through said tubes to cool said outer cylinder; and each of said bent upper end portions of said tubes include a horizontal portion extending from said outer cylinder to said inner cylinder, a vertical portion engaging a corresponding portion of said inner cylinder along the length of said vertical portion and another horizontal portion extending outwardly from said inner cylinder to form a floor of said outlet chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US161,632 | 1988-02-29 | ||
| US07161632 US4880450B1 (en) | 1987-07-06 | 1988-02-29 | Cyclone separator having water-steam cooled walls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1327946C true CA1327946C (en) | 1994-03-22 |
Family
ID=22582036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 581869 Expired - Fee Related CA1327946C (en) | 1988-02-29 | 1988-11-01 | Cyclone separator having water-steam cooled walls |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1327946C (en) |
-
1988
- 1988-11-01 CA CA 581869 patent/CA1327946C/en not_active Expired - Fee Related
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| MKLA | Lapsed |