EP0186739A2 - Dispositif d'échange de chaleur entre un gaz et une charge finement divisée - Google Patents

Dispositif d'échange de chaleur entre un gaz et une charge finement divisée Download PDF

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Publication number
EP0186739A2
EP0186739A2 EP85112728A EP85112728A EP0186739A2 EP 0186739 A2 EP0186739 A2 EP 0186739A2 EP 85112728 A EP85112728 A EP 85112728A EP 85112728 A EP85112728 A EP 85112728A EP 0186739 A2 EP0186739 A2 EP 0186739A2
Authority
EP
European Patent Office
Prior art keywords
separator
axis
vertical
gas
separators
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Withdrawn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
EP85112728A
Other languages
German (de)
English (en)
Other versions
EP0186739A3 (fr
Inventor
Otto Dipl.-Ing. Heinemann
Heinz-Herbert Dipl.-Ing. Schmits
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.)
ThyssenKrupp Industrial Solutions AG
Original Assignee
Krupp Polysius AG
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 Krupp Polysius AG filed Critical Krupp Polysius AG
Publication of EP0186739A2 publication Critical patent/EP0186739A2/fr
Publication of EP0186739A3 publication Critical patent/EP0186739A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00—Other direct-contact heat-exchange apparatus
    • F28C3/10—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material
    • 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
    • F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • 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
    • B04C5/08—Vortex chamber constructions
    • B04C5/081—Shapes or dimensions
    • 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
    • B04C5/24—Multiple arrangement thereof
    • B04C5/26—Multiple arrangement thereof for series flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
    • F28C3/00—Other direct-contact heat-exchange apparatus
    • F28C3/10—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material
    • F28C3/12—Other direct-contact heat-exchange apparatus one heat-exchange medium at least being a fluent solid, e.g. a particulate material the heat-exchange medium being a particulate material and a gas, vapour, or liquid

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • a device of this type is known from DE-A-1 069 059.
  • the cyclone-like separators of this known device consist of a cylindrical body inclined at an angle of approximately 45 ° with respect to the vertical, to which the funnel-shaped material discharge line is connected, which runs transversely to this cylindrical body (and thus also inclined at approximately 45 ° with respect to the vertical) .
  • the invention has for its object to develop the device according to the preamble of claim 1 in such a way that the structural design is simplified and at the same time the separation conditions are improved.
  • the main body of the cyclone-type separator in the device according to the invention is not cylindrical over the entire height (with a straight axis), but is composed of two parts with an angled axis: the separator upper part forms the same angle with the vertical as the axis of the adjoining gas line, while the axis of the separator lower part encloses a smaller angle with the vertical.
  • the device for heat exchange between gas and fine-grained material illustrated in a partial representation in FIG. 1 consists of a number of cyclone-type separators 1, 2, 3, etc. arranged one above the other. Each of these separators consists of an upper part 4 (with Axis 5) and a funnel-shaped lower part 6 (with axis 7).
  • a gas line 8 connects to the separator upper part 4 and leads to the next separator.
  • the separator lower part 6 is followed by a discharge line 9 (axis 10), in which, for example, pendulum flaps 11 are arranged and which opens into the gas line 8, which leads to the separator arranged underneath.
  • the axis 5 of the separator upper part 4 coincides with the axis 12 of the gas line 8 adjoining this separator, the separators being arranged in such a way that the gas lines 8 are formed by straight pipes.
  • the axes 5 and 12 form an angle cl of preferably approximately 45 ° with the vertical, while the axis 7 of the separator lower part 6 and the axis 10 of the part of the material discharge line 9 adjoining the lower part 6 preferably coincide with the vertical .
  • the axis 13 of the lowermost section of the discharge line 9 is slightly inclined with respect to the vertical in the illustrated embodiment.
  • the separator upper part 4 has an essentially elliptical cross-sectional shape.
  • the separator lower part 6 is funnel-shaped, the wall of this separator lower part 6 forming an angle ⁇ with the axis 7 of this lower part 6, which deviates by at most + 30 ° from the angle ⁇ that the axis 5 of the separator upper part 4 with the perpendicular.
  • the cyclone-like separators of the device according to the invention can have an essentially circular-cylindrical cross-sectional shape, as is generally the case with cyclones.
  • Substantially improved deposition ratios can be achieved, however, if the upper part 4 of the separator has an elliptical cross-sectional shape (according to FIG. 4) or the cross-sectional shape of a polygon with rounded corners (Fig.5). With these cross-sectional shapes, there is a periodic change in the gas velocity during the flow through the separator, which leads to an improvement in the separating performance, ie to an increase in efficiency.
  • the installation of the heat exchanger shown in Fig.1 in a larger system is not illustrated in detail.
  • the heat exchanger is used, for example, to heat fine-grained material, such as cement raw material, before firing in a rotary kiln
  • the hot gas exhaust gas from the rotary kiln
  • the bottom separator 1 for example via a calcining loop 14, and then flows through the following separators 2 in a known manner , 3 etc.
  • FIG. 6 to 9 illustrate an exemplary embodiment in which the separators 1, 2, 3 have an elliptical upper part 4 and a lower part which is composed of a cylindrical section 6a, a funnel-shaped section 6b and a transition piece 6c.
  • the transition piece 6c is expediently rotatable about the axis 7 of the separator lower part, so that the material outlet opening 6d can be pivoted in different directions.
  • the length of the immersion tube 20 can - as in all other exemplary embodiments - be chosen differently.
  • the upper part 4 of the separators 1, 2, 3 likewise has an elliptical cross-sectional shape, but the height of the separator upper part 4 inclined relative to the vertical is greater in the higher peripheral region than in the lower one lying circumferential area.
  • the gas line 8 leading to the separator opens into the upper part 4 approximately parallel to the small ellipse axis.
  • the separator lower part 6 consists of a single funnel-shaped section, the opening angle of which, however, is kept somewhat smaller than in the embodiment according to FIGS. 1 to 4.
  • the separator shown in FIGS. 14 to 16 contains a cylindrical upper part 4 and a lower part, which is composed of a cylindrical section 6a and a funnel-shaped section 6b.
  • the variant of a separator illustrated in FIGS. 17 to 19 likewise contains an upper part 4 of cylindrical cross section, but a lower part 6, which is formed by a single funnel or cone.
  • the cylindrical upper part 4 and the conical lower part 6 are cut at such an angle ⁇ that congruent ellipses result for the cylindrical upper part and the conical lower part.
  • the flour-like material separated in a cyclone-like separator falls directly from the vertically running material discharge line 9 onto the bottom of a flat, fan-shaped chute 21 which is inclined (for example at an angle) from 25 to 35 ° with respect to the vertical) and opens into the gas line leading to the next lower separator.
  • the chute 21 thus acts as a material distributor and ensures that the material enters the gas line approximately uniformly over the cross section of the gas line.
  • the material falls from an inclined chute part 9a of the material discharge line 9 through a vertically extending pipe section 9b onto the bottom of the fan-widening chute 21.
  • the chute 21 in this exemplary embodiment (as well as in the variant according to FIGS. 20, 21) widen to three to five times the diameter of the discharge line 9.
  • FIGS. 24 and 25 illustrate a variant in which (as shown in FIG. 6) a pendulum flap 11 is arranged in the oblique product discharge line 9, which has a round cross section on the inlet side and a square cross section on the outlet side.
  • a flat chute 21 adjoins the swing flap 11, which widens in a fan shape and causes the flow of material to dissolve over the flat, inclined bottom of the fan-shaped chute.
  • the inclination of the chute 21 with respect to the vertical is also expediently 25 to 35 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Cyclones (AREA)
  • Furnace Details (AREA)
EP85112728A 1984-11-23 1985-10-08 Dispositif d'échange de chaleur entre un gaz et une charge finement divisée Withdrawn EP0186739A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3442806 1984-11-23
DE19843442806 DE3442806A1 (de) 1984-11-23 1984-11-23 Vorrichtung zum waermetausch zwischen gas und feinkoernigem gut

Publications (2)

Publication Number Publication Date
EP0186739A2 true EP0186739A2 (fr) 1986-07-09
EP0186739A3 EP0186739A3 (fr) 1987-03-04

Family

ID=6251010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85112728A Withdrawn EP0186739A3 (fr) 1984-11-23 1985-10-08 Dispositif d'échange de chaleur entre un gaz et une charge finement divisée

Country Status (9)

Country Link
US (1) US4756093A (fr)
EP (1) EP0186739A3 (fr)
KR (1) KR860004297A (fr)
BR (1) BR8505795A (fr)
DE (1) DE3442806A1 (fr)
ES (1) ES8707335A1 (fr)
IN (1) IN164037B (fr)
TR (1) TR22477A (fr)
ZA (1) ZA858689B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5236132A (en) * 1992-01-03 1993-08-17 Vortec, Inc. Gradient-force comminuter/dehydrator apparatus and method
US5598979A (en) * 1995-04-20 1997-02-04 Vortec, Inc. Closed loop gradient force comminuting and dehydrating system
US6394371B1 (en) 1998-06-19 2002-05-28 Superior Technologies Llc Closed-loop cyclonic mill, and method and apparatus for fiberizing material utilizing same
US6517015B2 (en) 2000-03-21 2003-02-11 Frank F. Rowley, Jr. Two-stage comminuting and dehydrating system and method
AT409347B (de) * 2000-06-06 2002-07-25 Voest Alpine Ind Anlagen Elektrostatischer staubabscheider
US6715705B2 (en) 2001-03-16 2004-04-06 Frank F. Rowley, Jr. Two-stage comminuting and dehydrating system and method
US6790349B1 (en) 2003-05-05 2004-09-14 Global Resource Recovery Organization, Inc. Mobile apparatus for treatment of wet material
US20080061004A1 (en) * 2004-10-29 2008-03-13 Loran Balvanz Method and apparatus for producing dried distillers grain
US20070007198A1 (en) * 2005-07-07 2007-01-11 Loran Balvanz Method and apparatus for producing dried distiller's grain
US7736409B2 (en) * 2007-04-27 2010-06-15 Furrow Technologies, Inc. Cyclone processing system with vortex initiator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE676175C (de) * 1936-09-08 1939-05-27 Theodor Froehlich A G Fliehkraft-Staubabscheider
GB532791A (en) * 1938-09-22 1941-01-30 Corinth Ltd Improvements in or relating to apparatus for extraction of dust, grit and the like from gases
DE1069059B (fr) * 1959-11-12
EP0113607A1 (fr) * 1982-12-14 1984-07-18 FIVES-CAIL BABCOCK, Société anonyme Echangeur pour le traitement thermique de matières pulvérulentes au moyen de gaz

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US638983A (en) * 1899-02-09 1899-12-12 Elwin C Bryant Dust-collector.
US710605A (en) * 1900-12-17 1902-10-07 William S Osborne Dust collector or separator.
DE830285C (de) * 1950-03-10 1952-02-28 Mann & Hummel Filter Einlaufduese fuer Fliehkraftabscheider und Verfahren zu ihrer Herstellung
US3049343A (en) * 1959-08-25 1962-08-14 Polysius G M B H Fa Apparatus for heating cement powder or similar fine-granular materials
JPS5722908B2 (fr) * 1973-04-11 1982-05-15
JPS532646B2 (fr) * 1974-09-30 1978-01-30
DE2815461A1 (de) * 1978-04-10 1979-10-18 Kloeckner Humboldt Deutz Ag Verfahren und vorrichtung zur thermischen behandlung von feinkoernigem gut mit heissen gasen
DE3000494A1 (de) * 1980-01-08 1981-07-09 Krupp Polysius Ag, 4720 Beckum Verfahren und anlage zur waermebehandlung von feinkoernigem gut
DE3147374A1 (de) * 1981-09-16 1983-03-24 Krupp Polysius Ag, 4720 Beckum "vorrichtung zur einfuehrung von feingut in eine brennzone"

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069059B (fr) * 1959-11-12
DE676175C (de) * 1936-09-08 1939-05-27 Theodor Froehlich A G Fliehkraft-Staubabscheider
GB532791A (en) * 1938-09-22 1941-01-30 Corinth Ltd Improvements in or relating to apparatus for extraction of dust, grit and the like from gases
EP0113607A1 (fr) * 1982-12-14 1984-07-18 FIVES-CAIL BABCOCK, Société anonyme Echangeur pour le traitement thermique de matières pulvérulentes au moyen de gaz

Also Published As

Publication number Publication date
ZA858689B (en) 1986-07-30
TR22477A (tr) 1987-07-22
BR8505795A (pt) 1986-08-12
ES549208A0 (es) 1987-07-16
DE3442806A1 (de) 1986-06-05
IN164037B (fr) 1988-12-31
EP0186739A3 (fr) 1987-03-04
ES8707335A1 (es) 1987-07-16
US4756093A (en) 1988-07-12
KR860004297A (ko) 1986-06-20

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Inventor name: HEINEMANN, OTTO, DIPL.-ING.

Inventor name: SCHMITS, HEINZ-HERBERT, DIPL.-ING.