EP0197207A1 - Wandkonstruktion mit Kühlrohrwindungen für zylindrische Hochtemperatur-Öfen, Behälter, Zyklone und dergleichen - Google Patents

Wandkonstruktion mit Kühlrohrwindungen für zylindrische Hochtemperatur-Öfen, Behälter, Zyklone und dergleichen Download PDF

Info

Publication number
EP0197207A1
EP0197207A1 EP85301463A EP85301463A EP0197207A1 EP 0197207 A1 EP0197207 A1 EP 0197207A1 EP 85301463 A EP85301463 A EP 85301463A EP 85301463 A EP85301463 A EP 85301463A EP 0197207 A1 EP0197207 A1 EP 0197207A1
Authority
EP
European Patent Office
Prior art keywords
tube
shell
spiral coil
vessel
extending
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.)
Withdrawn
Application number
EP85301463A
Other languages
English (en)
French (fr)
Inventor
Robert D. Stewart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foster Wheeler Energy Corp
Original Assignee
Foster Wheeler Energy Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Foster Wheeler Energy Corp filed Critical Foster Wheeler Energy Corp
Priority to EP85301463A priority Critical patent/EP0197207A1/de
Priority to AU39532/85A priority patent/AU583496B2/en
Publication of EP0197207A1 publication Critical patent/EP0197207A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/20—Apparatus in which the axial direction of the vortex is reversed with heating or cooling, e.g. quenching, means
    • 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
    • F27D1/12—Casings; Linings; Walls; Roofs incorporating cooling arrangements
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/0002—Cooling of furnaces
    • F27D2009/0018—Cooling of furnaces the cooling medium passing through a pattern of tubes
    • F27D2009/0021—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine
    • F27D2009/0027—Cooling of furnaces the cooling medium passing through a pattern of tubes with the parallel tube parts close to each other, e.g. a serpentine linked by elements

Definitions

  • This invention relates to high temperature process vessels such as furnaces, reactors, containment vessels, cyclones, etc. which are subjected to relatively high temperatures and, more particularly, to such type of vessels in which water cooled spiral coils are provided to reduce the temperature of the vessel.
  • cyclone separators used in coal gasification, incineration, fuel combustion, calcining, etc., include a gas discharge tube, or vortex finder, located centrally within the cyclone separator and extending into the housing below the top of the separator. Since both the exterior and the interior walls of the discharge tube are exposed to extremely high temperature conditions these walls must be fabricated from materials including a commercially available ceramic or refractory material. However, it is difficult, if not impossible, to construct a gas discharge tube of the above type entirely of such material without encountering structural limitations and support problems.
  • the discharge tube For example, it has been suggested to construct the discharge tube from metallic materials and insulate same on both sides with ceramic or refractory materials.
  • this is unsatisfactory since both sides of the tube are exposed to the high temperature and the metal is trapped within the insulation materials and is subjected to the high temperature on both sides.
  • the metal can reach its molten temperature and fail structurally.
  • Other attempts to cope with this problem include designs having water-cooled tangent tubes in front of the refractory or internal vessel heads, fluidization grids, cyclone throats, etc.
  • each of these designs gives rise to other problems, such as inadequate sealing, poor support and'short life spans.
  • the vessel of the present invention includes a housing having a generally horizonally extending gas inlet and an outlet for the separated particles.
  • a vertically extending tubular portion extends through the upper'portion of the housing for providing an outlet for the gas after separation from the particles, and includes a water tube formed into a spiral coil and a layer of insulation material to at least one side of the coil.
  • FIGs. 1-3 An exemplary embodiment of the vessel of the present invention is shown in Figs. 1-3 in the form of a cyclone separator consisting of a metallic outer cylindrical shell 10 having an-open upper end portion 10a and a conically.-. shaped lower end portion 10b.
  • a refractory lining 12 extends immediately within the shell 10 and has an upper top portion 12a having a central opening formed therein for reasons that will be described in detail later, and a lower conical 12b portion/complementing the end portion 10b of.the shell 10.
  • An inlet pipe 14 extends substantially horizontally at the upper portion of the shell 10 and extends through a suitable opening formed in the wall of the shell and in a tangential relation to the interior of the shell as better shown in Fig. 2.
  • hot gases containing entrained particulate material entering the inlet pipe 14 are discharged into the interior of the shell in a substantially tangential relationship to the interior wall thereof which promotes separation of the particulate material from the gases, in a conventional manner.
  • An outlet opening 16 is formed through the lower end portions of the shell 10 and the lining 12 to permit discharge of the particulate material to external processing apparatus (not shown).
  • a water-cooled outlet tube assembly shown in general by the reference numeral 18, is provided through the aforementioned central opening formed in the top portion 12a of the lining 12.
  • the assembly 18 consists of a tube 20 formed in a spiral coil configuration extending from the interior of the vessel upwardly through the opening and projecting from the latter opening.
  • the diameter of the spiral coil portion of the tube 20 is less than that of the interior wall portion of the lining 12 to form an annular chamber 21.
  • One end portion 20a of the tube 20 extends through appropriate openings formed through the side wall of the shell 10 and the corresponding portion of the lining 12, and across the shell and upwardly to the spiral portion, as shown.
  • the other end portion 20b of the tube 20 extends outwardly from the plane of the spiral portion projecting from the upper end portion of the shell 10, for connection to external equipment (not shown).
  • a continuous fin 22 is attached to the spiral coil portion of the tube 20 for its entire length and is connected between adjacent sections of the spiral portions of the tube 20 by weldments, or the like, to render the spiral portion airtight.
  • the tube assembly 18 also includes two tubular portions 24 and 26 of refractory insulation material extending to either side of the spiral portion of the tube 20.
  • the tubular portions 24 and 26 are secured to the spiral portion of the tube 20 by a plurality of anchors 28 extending from the fin 22 and into the tubular portions as shown.
  • An insulating material, shown in general by the reference numeral 29, also surrounds that portion of the tube 20 between its end portion 20a and the spiral portion.
  • a cooling fluid such as water, is circulated through the tube 20 by a pump, or the like, (not shown) connected between the tube end portions 20a and 20b to reduce the temperature of the tube 20.
  • gases from the inlet tube 14 are introduced into the interior of the shell 10 and into the annular chamber 21 and the centrifugal forces thus created cause a separation of the particulate material entrained in the gas.
  • the separated particulate material falls downwardly by gravity and discharges from the shell through the outlet 16, while the clean gases rise by convection upwardly through the hollow portion of the tube assembly 18 and outwardly to external apparatus for further processing.
  • the spiral coil tube 20 provides a structural support for the refractory portions 24 and 26 to render them structurally stable. Also, the temperatures surrounding the tube can be kept below a value that will cause potential damage Further, in situations in which corrosive specie, such as H 2 CO 3 , H 2 SO 3 , H 2 SO 4 , etc., are present in the gases introduced into the chamber 21, the temperature of the spiral tube 20 can be kept at a temperature above the dewpoint of these specie to eliminate any corrosion.
  • corrosive specie such as H 2 CO 3 , H 2 SO 3 , H 2 SO 4 , etc.
  • Fi g . 4 is similar to that of Figs. 1-3, and identical components will be given the same reference numbers.
  • an additional spiral coil tube shown in general by the reference numeral 30 is sandwiched between the liner 12 and the metallic shell 10, and has a continuous fin 32 attached thereto and extend- in g for the length of the tube.
  • a plurality of anchors 34 extend from the interior side of the fin 32 into the refractory material of the liner 12 to anchor the latter in place.
  • the spiral coil portion of the tube 30 is shaped to conform to the shape of the shell 10 and includes a'conically shaped lower end portion.
  • the lower and upper end portions 30a and 30b of the tube 30 extend externally of the shell 10 as shown and are adapted to be connected to a pump or the like, for circulating a cooling fluid through the tube as in the previous embodiment. Since the tube assembly 18 of the shell of Fig. 4 is formed and cooled in a manner identical to that of the previous embodiment, the entire vessel may be utilized in a very high temperature environment.
  • the vessel can be a process vessel having an outer metallic shell 40, an inner refractory lining 42 and spiral coil tube 44 sandwiched therebetween.
  • the shell 40, the lining 42 and the tube 44 each have a necked-down portion in the upper and lower portions of the shell to define an open inlet 46 at the lower end portion of the shell and an outlet 48 at the upper end portion of the shell, and a conical portion 50 extending between the lower necked-down portion and the cylindrical wall portion.
  • the tube 44 extends in a spiral coil configuration from the lower inlet end portion to the upper outlet end portion of the shell 40 and has two end portions 44a and 44b extending out of the plane of the shell and functioning as an inlet and outlet, respectively for a cooling fluid as in the previous embodiment.
  • a continuous fin 52 is connected to the tube 44_and extends between adjacent tube sections for the entire length of the shell to render the shell gas-tight.
  • anchors similar to those disclosed in the previous embodiments can be utilized to anchor the refractory lining 42 relative to the spiral coil tube 44.
  • a cooling fluid upon being introduced into the inlet portion 44a of the tube 44 travels the entire distance of the shell before discharging through the outlet'end tube portion 44b to maintain the vessel at a lower temperature than otherwise would be possible.
  • the material to be processed is introduced into the shell inlet 46 where it passes upwardly into the shell where the desired reaction is completed, with the reacted material then discharging from the outlet 48.
  • both the inlet and outlet End portions of the water tube can be located at the upper portion of the shell as shown by the reference numerals 44c and 44d, respectively, in Fig. 6.
  • the water would flow downwardly through alternating sections of the spiral coil tube and then upwardly through other alternating sections before discharging from the outlet end portion 44d.
  • this circuit can also be incorporated in any of the previous embodiments.
  • a shell is provided with or without a discharge tube, that is stable from a structural standpoint, yet is immune to corrosion and can withstand relative high temperatures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cyclones (AREA)
EP85301463A 1985-03-04 1985-03-04 Wandkonstruktion mit Kühlrohrwindungen für zylindrische Hochtemperatur-Öfen, Behälter, Zyklone und dergleichen Withdrawn EP0197207A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP85301463A EP0197207A1 (de) 1985-03-04 1985-03-04 Wandkonstruktion mit Kühlrohrwindungen für zylindrische Hochtemperatur-Öfen, Behälter, Zyklone und dergleichen
AU39532/85A AU583496B2 (en) 1985-03-04 1985-03-05 Spiral coil cool wall construction for high temperature cylindrical furnaces, vessels, cyclones, etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP85301463A EP0197207A1 (de) 1985-03-04 1985-03-04 Wandkonstruktion mit Kühlrohrwindungen für zylindrische Hochtemperatur-Öfen, Behälter, Zyklone und dergleichen

Publications (1)

Publication Number Publication Date
EP0197207A1 true EP0197207A1 (de) 1986-10-15

Family

ID=8194155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85301463A Withdrawn EP0197207A1 (de) 1985-03-04 1985-03-04 Wandkonstruktion mit Kühlrohrwindungen für zylindrische Hochtemperatur-Öfen, Behälter, Zyklone und dergleichen

Country Status (2)

Country Link
EP (1) EP0197207A1 (de)
AU (1) AU583496B2 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618272A1 (de) * 1986-05-30 1987-12-03 Krupp Gmbh Vorrichtung zum abscheiden von in heissem gas dispergierten feststoffen
EP0298671A2 (de) * 1987-07-06 1989-01-11 Foster Wheeler Energy Corporation Zyklonabscheider mit wasser- bzw. dampfgekühlten Wänden
EP0807793A1 (de) * 1996-05-13 1997-11-19 DANIELI & C. OFFICINE MECCANICHE S.p.A. Gasabzug- und Kühlungsanordnung für einen Elektrolichtbogenofen
FR2880824A1 (fr) * 2005-01-20 2006-07-21 Renault Sas Dispositif perfectionne de separation de phases d'un fluide diphasique
CN104259018A (zh) * 2014-10-31 2015-01-07 南宁市英德肥业有限责任公司 一种多级旋风分离器回收装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB567450A (en) * 1942-09-08 1945-02-14 David Dalin Improvements in dust separators
GB641357A (en) * 1947-07-31 1950-08-09 C U R A Patents Ltd Improvements in gas cleaning devices of the cyclone type
FR1184834A (fr) * 1956-10-19 1959-07-27 Hoechst Ag Cyclone
GB1114252A (en) * 1964-08-31 1968-05-22 British Oxygen Co Ltd Heat exchange unit
US3470678A (en) * 1967-06-20 1969-10-07 Exxon Research Engineering Co Cyclone separator for high temperature operations
SU709182A1 (ru) * 1977-04-11 1980-01-15 Днепропетровский Металлургический Институт Циклон
FR2533680A1 (fr) * 1982-09-23 1984-03-30 Inst Ochistke T Refroidisseur pour les fours verticaux
EP0107520A1 (de) * 1982-10-25 1984-05-02 Constructions Navales Et Industrielles De La Mediterranee Schutzvorrichtungen von Verbrennungskammerrohrwänden für Kessel

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB567450A (en) * 1942-09-08 1945-02-14 David Dalin Improvements in dust separators
GB641357A (en) * 1947-07-31 1950-08-09 C U R A Patents Ltd Improvements in gas cleaning devices of the cyclone type
FR1184834A (fr) * 1956-10-19 1959-07-27 Hoechst Ag Cyclone
GB1114252A (en) * 1964-08-31 1968-05-22 British Oxygen Co Ltd Heat exchange unit
US3470678A (en) * 1967-06-20 1969-10-07 Exxon Research Engineering Co Cyclone separator for high temperature operations
SU709182A1 (ru) * 1977-04-11 1980-01-15 Днепропетровский Металлургический Институт Циклон
FR2533680A1 (fr) * 1982-09-23 1984-03-30 Inst Ochistke T Refroidisseur pour les fours verticaux
EP0107520A1 (de) * 1982-10-25 1984-05-02 Constructions Navales Et Industrielles De La Mediterranee Schutzvorrichtungen von Verbrennungskammerrohrwänden für Kessel

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618272A1 (de) * 1986-05-30 1987-12-03 Krupp Gmbh Vorrichtung zum abscheiden von in heissem gas dispergierten feststoffen
EP0298671A2 (de) * 1987-07-06 1989-01-11 Foster Wheeler Energy Corporation Zyklonabscheider mit wasser- bzw. dampfgekühlten Wänden
EP0298671A3 (de) * 1987-07-06 1990-03-28 Foster Wheeler Energy Corporation Zyklonabscheider mit wasser- bzw. dampfgekühlten Wänden
EP0807793A1 (de) * 1996-05-13 1997-11-19 DANIELI & C. OFFICINE MECCANICHE S.p.A. Gasabzug- und Kühlungsanordnung für einen Elektrolichtbogenofen
US5896409A (en) * 1996-05-13 1999-04-20 Danieli & C. Officine Meccaniche Spa Fume intake and cooling device for electric arc furnaces
FR2880824A1 (fr) * 2005-01-20 2006-07-21 Renault Sas Dispositif perfectionne de separation de phases d'un fluide diphasique
CN104259018A (zh) * 2014-10-31 2015-01-07 南宁市英德肥业有限责任公司 一种多级旋风分离器回收装置

Also Published As

Publication number Publication date
AU3953285A (en) 1986-09-11
AU583496B2 (en) 1989-05-04

Similar Documents

Publication Publication Date Title
US4913711A (en) Spiral coil cool wall construction for high temperature cylindrical furnaces, vessels, cyclones, etc.
US4746337A (en) Cyclone separator having water-steam cooled walls
US3470678A (en) Cyclone separator for high temperature operations
US4615715A (en) Water-cooled cyclone separator
US3273320A (en) Cyclone separator for high temperature operations
US2372514A (en) Multistage centrifugal separating apparatus
US5167932A (en) Circulating fluid bed reactor
US4944250A (en) Cyclone separator including a hopper formed by water-steam cooled walls
US4520760A (en) Heat exchanger outlet arrangement
FI102733B (fi) Erotussykloni
US5116394A (en) Cyclone separator roof
US5117770A (en) Combustion unit
EP0298671A2 (de) Zyklonabscheider mit wasser- bzw. dampfgekühlten Wänden
EP0197207A1 (de) Wandkonstruktion mit Kühlrohrwindungen für zylindrische Hochtemperatur-Öfen, Behälter, Zyklone und dergleichen
US4125385A (en) Cyclone separator for high temperature operations with corrosive gases
US4004898A (en) Cyclone separator gas tube heat dissipator
CA1274791A (en) Spiral coil cool wall construction for high temperature cylindrical furnaces, vessels, cyclones, etc.
US5226936A (en) Water-cooled cyclone separator
US4900516A (en) Fluidized bed reactor
EP0424079A1 (de) Vorrichtung zum Abscheiden von festen Teilchen aus einer Flüssigkeit
JPS6249559B2 (de)
GB2159726A (en) Apparatus for separating solid material in a circulating fluidized bed reactor
CA1323585C (en) Cyclone separator having water-steam cooled walls
HU181856B (en) Water gas reactors
CA1327946C (en) Cyclone separator having water-steam cooled walls

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

RBV Designated contracting states (corrected)

Designated state(s): GB IT NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870616

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STEWART, ROBERT D.