US3020025A - Rotary heat exchanger - Google Patents

Rotary heat exchanger Download PDF

Info

Publication number
US3020025A
US3020025A US680942A US68094257A US3020025A US 3020025 A US3020025 A US 3020025A US 680942 A US680942 A US 680942A US 68094257 A US68094257 A US 68094257A US 3020025 A US3020025 A US 3020025A
Authority
US
United States
Prior art keywords
shaft
heat exchanger
means
heat transfer
interior
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 - Lifetime
Application number
US680942A
Inventor
Richard F O'mara
Original Assignee
Richard F O'mara
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 Richard F O'mara filed Critical Richard F O'mara
Priority to US680942A priority Critical patent/US3020025A/en
Application granted granted Critical
Publication of US3020025A publication Critical patent/US3020025A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D11/00Heat-exchange apparatus employing moving conduits
    • F28D11/02Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F5/00Elements specially adapted for movement
    • F28F5/04Hollow impellers, e.g. stirring vane
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S165/00Heat exchange
    • Y10S165/135Movable heat exchanger
    • Y10S165/139Fully rotatable
    • Y10S165/147Fluid impeller or material advancer
    • Y10S165/15Radial or axial impeller
    • Y10S165/151Radial or axial impeller having hollow blade

Description

Feb. 6, 1962 R. F. OMARA ROTARY,l HEAT EXCHANGER 2 Sheets-Sheet 1 Filed Aug. 29. 1957 "www Tom

INVENTOR.

BY @if/fvr rfaA/ff/.s

Feb. 6 1962 R. F. o'MARA 3,020,025

ROTARYI HEAT EXCHANGER Filed Aug. 29. 195? 2 Sheets-Sheet 2 INVENTOR.

United States Patent 3,020,025 ROTARY HEAT EXCHANGER Richard F. Mara, 839 S. Lorraine Blvd., Los Angeles, Calif. Filed Aug. 29, 1957, Ser. No. 680,942 4 Claims. (Cl. 257-79) This invention is directed generally to the provision of a heat exchanger adapted to be rotated during operation and particularly to such a device in the form o-f a double hollow shaft assembly having a number of lins or paddles spaced therealong including fins which may be selectively adjusted as to angular inclination and fins which employ a substantial portion of their volume for circulation of heat exchange fluid therein.

In its preferred form hereinafter shown and described, apparatus embodying the present invention includes a longitudinally extending trough or casing. When horizontally oriented, the lower portion of the trough is desirably but not necessarily provided with a cylindrically shaped inner wall. A double hollow shaft assembly extends the length of the trough or casing. The shaft assembly includes a central portion for the axial passage of a heat transfer fluid which may be steam, water or other desired liquid or gas. A larger hollow shaft surrounds and is fixed to the rst named hollow shaft and the annular space between the inner and outer shafts alfords a passageway for the heat transfer fluid axially of the shaft. Typically, the flow of iluid in the annular space may be opposite to the direction of fluid flow in the inner hollow shaft.

Spaced longitudinally along the shaft assembly just referred to are a number of radially projecting heat transfer assemblies. Each such assembly may include a pair of rigid pipes or conduits, one pipe of each assembly being substantially smaller than the other. The smallerpipe is ilxed to the inner hollow shaft so that tluid communication is established between the inner shaft and the interior of the smaller pipe. The outer pipe is connected to the outer of the hollow shafts, and the two pipes are arranged in coaxial relation with iluid communication existing between the annular space between the two pipes and the annular space between the two hollow shafts. The outer ends of the larger pipe is closed olf, so that fluid moving, for example, outwardly in the inner pipe must ilow inwardly in the annular space between the two pipes, there being no other outlet for such iluid. By preference, throttling means may be provided for selectively adjusting the effective cross-sectional area of iluid flow in the heat transfer assembly. Other return path means may be substituted for the outer pipe, as set forth hereinafter.

In connection with each of the heat transfer assemblies just mentioned there is provided a fin approximately in the shape of a circular sector. The n is supported on the outer of the two pipes of the heat transfer assembly and may be adjustably positioned rela* tive thereto by suitable means so that the plane of the fin assumes any desired angle relative to a plane perpendicular to the axis of the double shaft. Additional impeller tins may also be provided at spaced points along the shaft.

In another form of the invention the sector-shaped iin may be formed to have a hollow interior, and the outer pipe above referred to may then be omitted so that the return path of heat exchange fluid may include the entire hollow interior of the n, this construction providing for fluid communication between the fin interior and the annular space between the hollow shafts of the shaft assembly.

Because of the angular adjustability of the individual tins of the heat transfer assemblies as well as of the additional impeller fins, when used, the present heat exchanger is particularly valuable in many industrial processes involving the transfer of heat either to or from a quantity of flowable material. may be tluid in form or may be a granular or pasty solid; in the completed apparatus for carrying out the present invention, the trough or casing within which 'the apparatus described above is rotatably mounted is pro vided near one end with an inlet opening for the material to be treated and near the opposite endwith an outlet for such material. The entire apparatus may be oriented with the axis of the double shaft disposed horizontally, vertically or at any desired angle best suited for the particular process being carried out, and a plurality of the heat exchangers may be provided in rows or tiers with the fins of one heat exchanger -interfolded and meshing those of another.

Accordingly, the objects of the present invention are to provide a novel construction of heat exchange apparatus; to provide such an apparatus adapted to rotate during operation within a trough or casing; to provide such apparatus including a double hollow shaft for the axial movement of heat exchange fluid together with means for fluid flow outwardly and inwardly relative to the shaft and meansfor impelling material longitudinally of the casing; to provide a plurality of heat transfer assemblies each including a pair of coaxial radially extending pipes connected respectively to the interiors of the double hollow shaft; and to provide in connection with each of the heat transfer assemblies means for controllably adjusting iluid flow therein and impeller tins angularly adjustable around the axis of each heat transfer assemblies to control movement of material longitudinally of the shaft axis.

These and other and similar objects and purposes willA be understood Vfrom the following description of preferred embodiments of the invention taken in connection with the accompanying drawings, in which:

FIG. l is a longitudinal broken sectional view of a heat exchange apparatus embodying the invention.

FIG. 2 is a sectional view on line II-II of FIG. l.

FlG. 3 is a sectional view on line III-III of FIG. 1.

FIG. 4 is a sectional view on line IV-IV of FIG. l.

FIG. 5 is a sectional view of a hollow interior iin or paddle in accordance with the invention.

Referring in detail to the drawings in FIG. l, there is indicated generally at 1t) a longitudinally extending heat exchange conveyor including a trough or casing, the lower inner surface 12 being preferably cylindrical and extending the entire length of the apparatus. An inlet opening 14 is provided at one end of the apparatus, preferably in the upper portion thereof, and an outlet opening 16 is provided at the other end of the apparatus, preferably in the lower portion thereof, when the device is mounted with its axis horizontal. The inlet and outlet openings 14 and 16 may be connected to suitable conduits or other structures for bringing material to be treated to the heat exchanger and for conveying it therefrom following the heat exchange process.

Rotatably mounted within the heat exchanger 10 is a double hollow shaft indicated generally at 20 including an outer shaft 22 and coaxially mounted therein an inner shaft 24. As shown in the righthand portion of FIG. l, conventional rotary coupling and bearing means are provided for fluid communication with the hollow interior of shafts 22 and 2.4. Shaft 24 is coupled to an extension 25 which projects into cap 26 which may be connected to a conduit or the like Z7. Shaft 22 is coupled to an extension Z9 which communicates the annular space 30 between the shafts 22 and 2.4 with the interior of housing 3-1 and thereby with an exterior con` duit 32 for the iluid. The other end of the hollow shaft The material so treated shafts and removing the same from lthe interior of the other shaft; and means for rotating the shaft assembly.

2. In a rotary heat exchanger: means forming an elongated trough having a lower generally cylindrical inner surface; a double hollofw shaft assembly mounted for r0- tation in the trough lincluding an inner hollow shaft within an outer hollow shaft; a plurality of heat transfer assemblies in tluid communication with the interiors of said shafts and spaced therealong, each assembly including a conduit for leading tluid from the interior of one of said shafts radially outwardly, means for conveying said fluid from Ithe end of the conduit into the interior of the other said shatit, impeller n means in heat transfer relation with the `conveyed uid and with owable material in the trough and having an arcuate outer edge adapted to sweep adjacent said cylindrical surface during rotation of the shaft assembly in the trough and means for securing the n means with its elective plane at a selected angle relative to a plane perpendicular to the axis of said shaft assembly; and means for supplying heat transfer fluid .-to the interior of one of said shafts and removing the same from the interior of the other said shaft.

3. The invention as stated in claim k2 wherein said conveying means comprise a generally sector-shaped cav# ity formed within said impeller iin means and surrounding said conduit. v

4. The invention as stated in claim 2 Iwherein said con veying means comprise a pipe concentric ywith and surrounding said conduit.

References Cited in the file of this patent UNITED STATES PATENTS 208,705 Bazemore Oct. 8, 1878 1,355,137` Frick Oct. 12, 1920 1,689,189 Broadhurst Oct. 30, 1928 1,818,082 Mott Aug. 11, 1931 2,027,185 Loomis Jan. 7, 1936 2,160,533 Bonath May 30, 1939 FOREIGN PATENTS 59,016 Norway Feb. 2:1, 1938 764,544 Great Britain Dec. 28, 1956 1,127,505 France Aug. 13, 1956

US680942A 1957-08-29 1957-08-29 Rotary heat exchanger Expired - Lifetime US3020025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US680942A US3020025A (en) 1957-08-29 1957-08-29 Rotary heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US680942A US3020025A (en) 1957-08-29 1957-08-29 Rotary heat exchanger

Publications (1)

Publication Number Publication Date
US3020025A true US3020025A (en) 1962-02-06

Family

ID=24733141

Family Applications (1)

Application Number Title Priority Date Filing Date
US680942A Expired - Lifetime US3020025A (en) 1957-08-29 1957-08-29 Rotary heat exchanger

Country Status (1)

Country Link
US (1) US3020025A (en)

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181840A (en) * 1962-04-12 1965-05-04 Rietz Mfg Co Mixing apparatus
US3241606A (en) * 1962-08-16 1966-03-22 Shionogi & Co Agitator
US3250321A (en) * 1964-07-09 1966-05-10 Bethlehem Steel Corp Rotary batch processor
US3263748A (en) * 1964-09-30 1966-08-02 Mine And Smelter Company Conveyor heat exchanger
US3273863A (en) * 1964-04-24 1966-09-20 Lodige Wilhelm Mixing apparatus
US3285330A (en) * 1964-07-09 1966-11-15 Bethlchem Corp Rotary processor
US3313341A (en) * 1964-02-22 1967-04-11 Buss Ag Heat exchanger
US3391733A (en) * 1966-12-02 1968-07-09 Norbert J. Stevens Thermal processor
US3477500A (en) * 1967-10-27 1969-11-11 Stuart B Sear Apparatus for high-speed treatment of continuously moving material
US3495383A (en) * 1968-06-18 1970-02-17 American Cyanamid Co System for condensation of fecl3
US3500901A (en) * 1967-11-08 1970-03-17 Bethlehem Corp The Mixer
US3596712A (en) * 1969-02-28 1971-08-03 Stewart Bolling & Co Inc Mixing machine rotor
US3613777A (en) * 1969-02-18 1971-10-19 Jiyuichi Nara Heat exchange apparatus for powdered materials
US3633664A (en) * 1968-11-08 1972-01-11 Contherm Corp Vertically oriented swept surface heat exchanger
FR2156271A1 (en) * 1971-10-07 1973-05-25 Beteiligungs Ag Haustechnik
US3765481A (en) * 1972-02-09 1973-10-16 Bethlehem Steel Corp Heat exchanger and mixer
US3788375A (en) * 1972-11-15 1974-01-29 Fmc Corp Evaporator having moving heat exchange tubes
US4039024A (en) * 1972-11-21 1977-08-02 Heinz List Heat exchanger
US4143975A (en) * 1974-08-03 1979-03-13 Loedige Wilhelm Apparatus for applying adhesive to fibrous material
US4233676A (en) * 1978-01-24 1980-11-11 Gebruder Lodige Maschinenbau Gmbh Mixing mechanism for a mixing machine
US4245915A (en) * 1979-02-22 1981-01-20 Bracegirdle P E Apparatus for making asphalt concrete
US4395132A (en) * 1979-12-28 1983-07-26 Constructie Werkhuizen Vandekerckhove N.V. Stirring gear with internal heating
US4636127A (en) * 1985-04-03 1987-01-13 The International Metals Reclamation Co., Inc. Conveying screw for furnace
EP0247348A2 (en) * 1986-05-10 1987-12-02 Santrade Ltd. Pre-crystallization apparatus
US4770236A (en) * 1987-03-18 1988-09-13 Blaw-Knox Food & Chemical Equipment Co. Rotary dryer
FR2613470A1 (en) * 1987-04-03 1988-10-07 Pelletier Jean Claude Rotary heat exchanger
US4854374A (en) * 1988-02-02 1989-08-08 Frank Harrison Temperature controlling apparatus
US4879880A (en) * 1989-01-17 1989-11-14 Frank Harrison Air temperature regulator
US4993593A (en) * 1989-07-21 1991-02-19 Ralph Fabiano Apparatus and methods for dispensing a flowable medium
US5061082A (en) * 1989-11-27 1991-10-29 J.C. Steele & Sons, Inc. Replaceable pug mill blade
US5507306A (en) * 1993-12-23 1996-04-16 Howmet Corporation Cleaning apparatus and method for cleaning internal airfoil cooling passages
US5607235A (en) * 1990-07-13 1997-03-04 Campbell; Craig C. High speed combined mixing and transport tool
US6364520B1 (en) * 2000-06-12 2002-04-02 Dynamic Air Inc. Conduction mixers
US20050276157A1 (en) * 2002-09-18 2005-12-15 Kabushiki Kaisha Kobe Seiko Sho Heat exchange system and rotor having the same
US20060283203A1 (en) * 2005-06-16 2006-12-21 Kelly Patrick L Rapid fluid cooling apparatus and method
US20070280039A1 (en) * 2003-11-19 2007-12-06 Bayer Technology Services Gmbh Method for Melting Frozen, Water-Containing Products
US7334628B2 (en) * 2000-05-18 2008-02-26 Behr Gmbh & Co. Flow control device for gas stream
US20100059204A1 (en) * 2008-07-23 2010-03-11 Klaus Stanke Device and process for heat transfer
US20140027095A1 (en) * 2011-03-19 2014-01-30 M.E.E. Gmbh Screw and method for producing same
US20150131399A1 (en) * 2013-11-12 2015-05-14 Zzyzx Polymers LLC Systems and methods of regulating temperature of a solid-state shear pulverization or solid-state melt extrusion device
US20160091255A1 (en) * 2013-02-07 2016-03-31 John Carl Bastian Rotary high density heat exchanger
US20180229197A1 (en) * 2017-02-15 2018-08-16 Wenger Manufacturing, Inc. High thermal transfer hollow core extrusion screw assembly

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US208705A (en) * 1878-10-08 Improvement in rotary churns
US1355137A (en) * 1916-05-29 1920-10-12 Smalley Mfg Company Feed-mixing attachment for feed-cutters
US1689189A (en) * 1925-03-30 1928-10-30 Frank S Broadhurst Rotary heat exchanger
US1818082A (en) * 1928-08-10 1931-08-11 George T Mott Apparatus for heat exchanging
US2027185A (en) * 1934-06-15 1936-01-07 Evarts G Loomis Mixing machine
US2160533A (en) * 1936-01-11 1939-05-30 Werkspoor Nv Apparatus for continuously crystallizing solutions by evaporation or cooling
FR1127505A (en) * 1955-06-01 1956-12-18 element heat exchanger, particularly for radiation heating in the premises
GB764544A (en) * 1954-06-19 1956-12-28 George Fletcher And Company Lt Improvements in heat exchangers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US208705A (en) * 1878-10-08 Improvement in rotary churns
US1355137A (en) * 1916-05-29 1920-10-12 Smalley Mfg Company Feed-mixing attachment for feed-cutters
US1689189A (en) * 1925-03-30 1928-10-30 Frank S Broadhurst Rotary heat exchanger
US1818082A (en) * 1928-08-10 1931-08-11 George T Mott Apparatus for heat exchanging
US2027185A (en) * 1934-06-15 1936-01-07 Evarts G Loomis Mixing machine
US2160533A (en) * 1936-01-11 1939-05-30 Werkspoor Nv Apparatus for continuously crystallizing solutions by evaporation or cooling
GB764544A (en) * 1954-06-19 1956-12-28 George Fletcher And Company Lt Improvements in heat exchangers
FR1127505A (en) * 1955-06-01 1956-12-18 element heat exchanger, particularly for radiation heating in the premises

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181840A (en) * 1962-04-12 1965-05-04 Rietz Mfg Co Mixing apparatus
US3241606A (en) * 1962-08-16 1966-03-22 Shionogi & Co Agitator
US3313341A (en) * 1964-02-22 1967-04-11 Buss Ag Heat exchanger
US3273863A (en) * 1964-04-24 1966-09-20 Lodige Wilhelm Mixing apparatus
US3250321A (en) * 1964-07-09 1966-05-10 Bethlehem Steel Corp Rotary batch processor
US3285330A (en) * 1964-07-09 1966-11-15 Bethlchem Corp Rotary processor
US3263748A (en) * 1964-09-30 1966-08-02 Mine And Smelter Company Conveyor heat exchanger
US3391733A (en) * 1966-12-02 1968-07-09 Norbert J. Stevens Thermal processor
US3477500A (en) * 1967-10-27 1969-11-11 Stuart B Sear Apparatus for high-speed treatment of continuously moving material
US3500901A (en) * 1967-11-08 1970-03-17 Bethlehem Corp The Mixer
US3495383A (en) * 1968-06-18 1970-02-17 American Cyanamid Co System for condensation of fecl3
US3633664A (en) * 1968-11-08 1972-01-11 Contherm Corp Vertically oriented swept surface heat exchanger
US3613777A (en) * 1969-02-18 1971-10-19 Jiyuichi Nara Heat exchange apparatus for powdered materials
US3596712A (en) * 1969-02-28 1971-08-03 Stewart Bolling & Co Inc Mixing machine rotor
FR2156271A1 (en) * 1971-10-07 1973-05-25 Beteiligungs Ag Haustechnik
US3765481A (en) * 1972-02-09 1973-10-16 Bethlehem Steel Corp Heat exchanger and mixer
US3788375A (en) * 1972-11-15 1974-01-29 Fmc Corp Evaporator having moving heat exchange tubes
US4039024A (en) * 1972-11-21 1977-08-02 Heinz List Heat exchanger
US4143975A (en) * 1974-08-03 1979-03-13 Loedige Wilhelm Apparatus for applying adhesive to fibrous material
US4233676A (en) * 1978-01-24 1980-11-11 Gebruder Lodige Maschinenbau Gmbh Mixing mechanism for a mixing machine
US4245915A (en) * 1979-02-22 1981-01-20 Bracegirdle P E Apparatus for making asphalt concrete
USRE32206E (en) * 1979-02-22 1986-07-15 Process for making asphalt concrete
US4378162A (en) * 1979-02-22 1983-03-29 Bracegirdle P E Process for making asphalt concrete
EP0031604B1 (en) * 1979-12-28 1984-05-23 Constructie Werkhuizen VANDEKERCKHOVE N.V. Rotary stirrer with internal heating
US4395132A (en) * 1979-12-28 1983-07-26 Constructie Werkhuizen Vandekerckhove N.V. Stirring gear with internal heating
US4636127A (en) * 1985-04-03 1987-01-13 The International Metals Reclamation Co., Inc. Conveying screw for furnace
EP0247348A2 (en) * 1986-05-10 1987-12-02 Santrade Ltd. Pre-crystallization apparatus
EP0247348A3 (en) * 1986-05-10 1988-09-14 Santrade Ltd. Pre-crystallization apparatus
US4770236A (en) * 1987-03-18 1988-09-13 Blaw-Knox Food & Chemical Equipment Co. Rotary dryer
FR2613470A1 (en) * 1987-04-03 1988-10-07 Pelletier Jean Claude Rotary heat exchanger
US4854374A (en) * 1988-02-02 1989-08-08 Frank Harrison Temperature controlling apparatus
US4879880A (en) * 1989-01-17 1989-11-14 Frank Harrison Air temperature regulator
US4993593A (en) * 1989-07-21 1991-02-19 Ralph Fabiano Apparatus and methods for dispensing a flowable medium
US5061082A (en) * 1989-11-27 1991-10-29 J.C. Steele & Sons, Inc. Replaceable pug mill blade
US5692831A (en) * 1990-07-13 1997-12-02 Campbell; Craig C. High speed combined mixing and transport tool
US5607235A (en) * 1990-07-13 1997-03-04 Campbell; Craig C. High speed combined mixing and transport tool
US5618353A (en) * 1993-12-23 1997-04-08 Howmet Corporation Cleaning, method for cleaning internal airfoil cooling passages
US5507306A (en) * 1993-12-23 1996-04-16 Howmet Corporation Cleaning apparatus and method for cleaning internal airfoil cooling passages
US7334628B2 (en) * 2000-05-18 2008-02-26 Behr Gmbh & Co. Flow control device for gas stream
US6364520B1 (en) * 2000-06-12 2002-04-02 Dynamic Air Inc. Conduction mixers
US20050276157A1 (en) * 2002-09-18 2005-12-15 Kabushiki Kaisha Kobe Seiko Sho Heat exchange system and rotor having the same
US7063454B2 (en) * 2002-09-18 2006-06-20 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Heat exchange system and rotor having the same
US8075175B2 (en) * 2003-11-19 2011-12-13 Grifols Therapeutics Inc. Method for melting frozen, water-containing products in a mixer
US20070280039A1 (en) * 2003-11-19 2007-12-06 Bayer Technology Services Gmbh Method for Melting Frozen, Water-Containing Products
US7810349B2 (en) 2005-06-16 2010-10-12 Patrick Laughlin Kelly Rapid fluid cooling apparatus and method
US20060283203A1 (en) * 2005-06-16 2006-12-21 Kelly Patrick L Rapid fluid cooling apparatus and method
US20100059204A1 (en) * 2008-07-23 2010-03-11 Klaus Stanke Device and process for heat transfer
US8211371B2 (en) * 2008-07-23 2012-07-03 Andritz Technology And Asset Management Gmbh Device and process for heat transfer
US20140027095A1 (en) * 2011-03-19 2014-01-30 M.E.E. Gmbh Screw and method for producing same
US20160091255A1 (en) * 2013-02-07 2016-03-31 John Carl Bastian Rotary high density heat exchanger
US9970712B2 (en) * 2013-02-07 2018-05-15 John Carl Bastian Rotary high density heat exchanger
US20150131399A1 (en) * 2013-11-12 2015-05-14 Zzyzx Polymers LLC Systems and methods of regulating temperature of a solid-state shear pulverization or solid-state melt extrusion device
US20180229197A1 (en) * 2017-02-15 2018-08-16 Wenger Manufacturing, Inc. High thermal transfer hollow core extrusion screw assembly
US10434483B2 (en) * 2017-02-15 2019-10-08 Wenger Manufacturing Inc. High thermal transfer hollow core extrusion screw assembly

Similar Documents

Publication Publication Date Title
US6749330B2 (en) Cement mixing system for oil well cementing
US4714108A (en) Heat pump system
US3747899A (en) Mixer
US3338173A (en) Variable fluid proportioner
US2008684A (en) Emulsifying unit
SU469270A3 (en) Apparatus for metering a mixture of two gases
US4092013A (en) Mixer with no moving parts
US3459133A (en) Controllable flow pump
CA1081687A (en) Dual scraped surface heat exchanger
CN104422265B (en) Flat paddle dryer and flat paddle formula drying means
RU2203128C2 (en) Device for ejection of liquid and method of ejection by means of this device
US3476522A (en) High viscosity reactors
US5547277A (en) Preheating screw
GB988855A (en) Material treatment apparatus
US4770236A (en) Rotary dryer
EP1277513B1 (en) Apparatus for homogenizing powder, its use and a method making use of such an apparatus
US2210031A (en) Refrigerating apparatus and method
US2973944A (en) Heat transfer apparatus
JPS61114093A (en) Heat exchanger
US3751010A (en) Mixer
SE7413544L (en)
US3548926A (en) Screw type material processor
US3199898A (en) Swivel pipe joint assembly
US5460448A (en) Preconditioning apparatus having intermeshing beaters with a variable pitch helix
ES281289U (en) Bypass valve