US3750911A - Device for delivering a measured charge of a flowable powder - Google Patents

Device for delivering a measured charge of a flowable powder Download PDF

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Publication number
US3750911A
US3750911A US00208839A US3750911DA US3750911A US 3750911 A US3750911 A US 3750911A US 00208839 A US00208839 A US 00208839A US 3750911D A US3750911D A US 3750911DA US 3750911 A US3750911 A US 3750911A
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US
United States
Prior art keywords
rod
conduit
powder
reciprocating
channel
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
US00208839A
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English (en)
Inventor
H Ebner
B Stumer
H Lang
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Hoechst AG
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Hoechst AG
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Filing date
Publication date
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Publication of US3750911A publication Critical patent/US3750911A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/10—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation
    • G01F11/12—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements
    • G01F11/14—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements wherein the measuring chamber reciprocates
    • G01F11/18—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers moved during operation of the valve type, i.e. the separating being effected by fluid-tight or powder-tight movements wherein the measuring chamber reciprocates for fluent solid material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
    • B01J8/002—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor with a moving instrument
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B1/30—Devices or methods for controlling or determining the quantity or quality or the material fed or filled
    • B65B1/36—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods
    • B65B1/38—Devices or methods for controlling or determining the quantity or quality or the material fed or filled by volumetric devices or methods by pistons co-operating with measuring chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/34—Details
    • B65G53/40—Feeding or discharging devices
    • B65G53/46—Gates or sluices, e.g. rotary wheels
    • B65G53/4683—Gates or sluices, e.g. rotary wheels with a reciprocating mover acting directly on material

Definitions

  • the present invention relates to a device for delivering a measured unit volume or charge of a flowable powder, especially into a gas space under superatmospheric pressure. More particularly, the present invention relates to the charging of powdery catalysts and powdery reaction components into the gas space of a reactor operated under relatively high pressure.
  • the devices proposed for charging unit volumes of powdery solids generally comprise a storage container and a feeding device.
  • the storage container is an open vessel, and worms, disks or rolls with cells are used as the feeding device.
  • the charge of powder is determined directly by the feeding device or a measuring vessel connected thereafter.
  • mechanical discharging devices are used for cleaning the cylindrical measuring vessel.
  • Most of the known devices can be constructed with appropriate casings so as to be dust-proof. It is difficult, however, to introduce powders against superatmospheric pressures with encased devices as even small increases above atmospheric pressure cause the gas to pass back through the feeding and measuring means whereby the charging of flowable powders, which is at best inaccurate, is rendered more difficult.
  • the known devices fail completely if they are operated against high gas pressures, for example, in the range of from to 50 atmospheres gauge.
  • the present invention provides a device for delivering a measured charge of a flowable powder, comprising a vertical, slidably mounted piston rod, which rod passes through a storage container and tits tightly in a passage connecting the storage container with a lower, buffer vessel, the rod being provided with a constriction, which constriction reaches into the storage container when, and only when, the piston rod is at the upper end of its stroke, and reaches into the buffer vessel when, and only when, the piston rod is at the lower end of its stroke, the portion of the piston rod below the constriction fitting tightly in a first channel, which is in connection with a second channel which has aclearing' rod slidably mounted and fitting tightly therein, the second channel being open at one end, the clearing rod occupying thesecond channel at one end ofits stroke and at'the opposite end of its stroke enabling a communication to be established between the first channel and the open end of the second channel.
  • FIG. I is a longitudinal view of a device according to the invention and FIG. 2 is a part-sectional view of the device shown in FIG. 1.
  • the vertical piston rod 2 is provided with a constriction 1 to measure and carry the charge of the material to be introduced.
  • the piston rod 2 is in its lower end position where the constriction 1 projects into a buffer vessel 4.'At the upper end position of the piston, the constriction 1 is situated in a storagecontainer 3.
  • the end of the piston rod 2 below the constric tion 1 is fitted tightly in a channel 5. Part of the said channel is visible in FIG. 2.
  • the lower end of the channel 5 is hidden behind the lower end of the piston rod 2.
  • the channel 5 is in connection with a channel 6 of a clearing rod 7 as can be seen in FIG. 2. At one end of its stroke, the clearing rod 7 occupies the channel 6 as shown in FIG.
  • the channel 6 is open to the gas space of the reactor via a connection 8
  • the mouth of the channel 5 is in connection with the channel 6, and a connection 9 to a blowing device not shown is open.
  • the blowing device comprises a pressure gas container or a tube net in communication with the connection 9 by way of a valve 15.
  • the pistons can be driven in known manner by a gear and programming disk or advantageously by pneumatic means.
  • pneumatic cylinders 10 and 11 which are in communication via three-way valves with a known pressure gas source not shown.
  • The' valves can be opened and closed in known manner by electric devices, for example, a programme switch.
  • stuffing boxes 12 with suction channels following them are advantageously installed in the channels 5 and 6.
  • This is of special advantage when the powder to be charged is a catalyst used to initiate or accelerate a reaction in the gas space of a connected reactor.
  • gaseous reactants are prevented in simple manner from penetrating into the buffer vessel 4 and the storage container 3 by means of a suction channel 13 which is connected with a vacuum installation of known type by way of a valve 17.
  • the connection 9 in the guide channel 6 may also act as a suction channel.
  • the invention is now further described with reference to the position of the piston rod 2 and the clearing rod 7 as represented in FIG. I.
  • the valve 18 is open while valves 15 and 17 are closed.
  • the buffer vessel 4 contains a powdery catalyst in an amount corresponding to the volume of constriction I in piston rod 2.
  • Storage container 3 is at least partially charged with the powdery catalyst: under a blanket of nitrogen introduced through conduit 19.
  • Piston rod 2 is moved, to the upper end position which is reached when constriction 1 projects into storage container 3 to such an extent that it is filled with powder. In this position, the powder contained in buffer vessel 4 is discharged into channel 5 of piston rod 2. Then the piston rod 2 is moved downwards to .an intermediate position as represented in FIG. Zso that the powder in channel 5 is not compressed. The powder now contained in the contriction 1 cannot yet fall into the buffer vessel 4.
  • valves I5 and 17 are opened, the valve 18 is closed and the clearing rod 7 isreturned to the position represented in FIG. 2.
  • a gaseous reactant or a gas which is inert in the reaction flows through the open valve 15 into the free space of channels 5 and 6 and blows the powder contained therein through a connection 8 into the gas space.
  • the piston rod 2 and the clearing rod 7 return to their initial position one after the other and push any residues of the powder which may still be present out of the channels.
  • the valve is closed and the valve 18 is opened.
  • the suctioning means behind the stuffing boxes may be dispensed with.
  • a device for delivering a measured charge of a flowable powder comprising a storage container for said powder and a buffer vessel located downstream of said storage container andin communication therewith through a flow passage in said device, means defining first and-second flow conduits in said device with said first conduit being located in communication with said buffer vessel and in axial alignment with said flow passage, said second conduit being located at an angle with respect to said first conduit, in communication therewith, and having an open discharge end; a first elongated rod slidably mounted in said flow passage for reciprocating movement therein and having one end thereof slidably received in said first conduit, said first elongated rod having a constriction formed therein intermediate its ends, and means for reciprocating said first elongated rod between first and second positions wherein, at said first position said constriction is located in said storage container to receive said measured charge of powder and said one end of the rod is located in said buffer vessel, and at said second position said constriction is located in said buffer vessel to deposit said measured powder charge therein and said
  • the device as defined in claim 1 including means for supplying a pressurized gas to said second conduit to blow said powder supplied to said second conduit from said first conduit out of said open end before said second rod is moved from its first to its second positions.
  • the device as defined in claim 5 including stuffing boxes associated with each of said conduits for forming a gas seal with said rods and vacuum means for drawing off gas leaking past said seals.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Basic Packing Technique (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
US00208839A 1970-12-18 1971-12-16 Device for delivering a measured charge of a flowable powder Expired - Lifetime US3750911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2062513A DE2062513B2 (de) 1970-12-18 1970-12-18 Dosiervorrichtung zum Dosieren von Pulvern

Publications (1)

Publication Number Publication Date
US3750911A true US3750911A (en) 1973-08-07

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US00208839A Expired - Lifetime US3750911A (en) 1970-12-18 1971-12-16 Device for delivering a measured charge of a flowable powder

Country Status (16)

Country Link
US (1) US3750911A (OSRAM)
JP (1) JPS5423591B1 (OSRAM)
AT (1) AT333525B (OSRAM)
AU (1) AU452588B2 (OSRAM)
BE (1) BE776959A (OSRAM)
BR (1) BR7108372D0 (OSRAM)
CA (1) CA956280A (OSRAM)
DE (1) DE2062513B2 (OSRAM)
ES (1) ES397869A1 (OSRAM)
FR (1) FR2118159B1 (OSRAM)
GB (1) GB1370492A (OSRAM)
IT (1) IT944040B (OSRAM)
NL (1) NL7117071A (OSRAM)
PL (1) PL77084B1 (OSRAM)
RO (1) RO60595A (OSRAM)
ZA (1) ZA718476B (OSRAM)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849074A (en) * 1972-12-07 1974-11-19 Du Pont Apparatus for mixing quickly reactive materials
US4764056A (en) * 1985-12-19 1988-08-16 Basf Aktiengesellschaft Metering apparatus for introducing free-flowing, powdered substances in a controllable manner into spaces under pressure
US5439138A (en) * 1992-12-31 1995-08-08 Sedepro Dosaging device and method of dosaging
WO1996027432A1 (en) * 1995-03-07 1996-09-12 Biomolecular Assays, Inc. Pressure cycling reactor
DE19714504A1 (de) * 1997-04-08 1998-10-15 Krupp Polysius Ag Verfahren und Vorrichtung zum Vorbereiten von Feingutproben
US20040126309A1 (en) * 2002-10-28 2004-07-01 Platinum Research Organization Llc Method for producing metal fluoride materials
US20040234446A1 (en) * 2002-10-28 2004-11-25 Platinum Research Organization Ltd. Process for the production of metal fluoride materials
US20080267855A1 (en) * 2003-09-15 2008-10-30 Greer F C Process for the production of metal fluoride materials with submicron structures
CN102152962A (zh) * 2011-01-20 2011-08-17 西北工业大学 一种流量可控的高压环境送粉装置
CN102951448A (zh) * 2012-11-09 2013-03-06 裕东（中山）机械工程有限公司 一种方便粉末输送的装置
US8791056B2 (en) 2010-06-24 2014-07-29 Board Of Regents, The University Of Texas System Alkylphosphorofluoridothioates having low wear volume and methods for synthesizing and using same
US9725669B2 (en) 2012-05-07 2017-08-08 Board Of Regents, The University Of Texas System Synergistic mixtures of ionic liquids with other ionic liquids and/or with ashless thiophosphates for antiwear and/or friction reduction applications
US20230002087A1 (en) * 2013-12-26 2023-01-05 Altria Client Services Llc Slide measuring system for filling pouches and associated method
US12369614B2 (en) 2015-07-30 2025-07-29 Altria Client Services Llc Slide measuring system for filling pouches and associated method

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917189C3 (de) * 1979-04-25 1982-02-18 Wolfgang 1000 Berlin Bogen Dosiervorrichtung zum Dosieren von Pulvern
DE3317608C1 (de) * 1983-05-14 1984-12-20 AKA-Präzisionsdosierpumpen GmbH, 7253 Renningen Trockendosierer
FR2644582B1 (fr) * 1989-03-17 1993-07-09 Tech Indles Manutention Appareil microdoseur d'un produit solide discontinu
JPH05221531A (ja) * 1992-02-14 1993-08-31 Sumitomo Chem Co Ltd 粉体触媒連続供給装置及び触媒供給システム
DE4443307C1 (de) * 1994-12-06 1996-06-27 Markus Schoettler Partikeldosiervorrichtung
DE102013104003B3 (de) 2013-04-19 2014-03-13 Glatt Systemtechnik Gmbh Vorrichtung zum Einbringen einer definierten Menge eines zweiten Pulvers in einen Prozessbehälter
DE102016111214B3 (de) * 2016-06-20 2017-06-29 Ancosys Gmbh Vorrichtung zur Pulverdosierung für chemische Produktionsprozesse unter Reinraumbedingungen, Verwendung derselben und Zudosierungsverfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2358956A (en) * 1941-12-06 1944-09-26 Hydraulic Dev Corp Inc Feeding unit for injection molding machines
US2649289A (en) * 1952-01-17 1953-08-18 Richard Roosevelt Colburn Concrete gun
US2847147A (en) * 1954-10-29 1958-08-12 Philips Corp Liquid dispensing device
US3233790A (en) * 1963-12-30 1966-02-08 Kikkoman Shoyu Kabushiki Kaish Apparatus for airtight transfer of solid particles
US3248118A (en) * 1961-12-11 1966-04-26 Westinghouse Electric Corp Discharge devices fabricating apparatus and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1481858A (fr) * 1965-06-05 1967-05-19 Kalle Ag Dispositif pour l'évacuation par portions de substances gazeuses, liquides et solides sortant d'enceintes sous pression

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2358956A (en) * 1941-12-06 1944-09-26 Hydraulic Dev Corp Inc Feeding unit for injection molding machines
US2649289A (en) * 1952-01-17 1953-08-18 Richard Roosevelt Colburn Concrete gun
US2847147A (en) * 1954-10-29 1958-08-12 Philips Corp Liquid dispensing device
US3248118A (en) * 1961-12-11 1966-04-26 Westinghouse Electric Corp Discharge devices fabricating apparatus and method
US3233790A (en) * 1963-12-30 1966-02-08 Kikkoman Shoyu Kabushiki Kaish Apparatus for airtight transfer of solid particles

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3849074A (en) * 1972-12-07 1974-11-19 Du Pont Apparatus for mixing quickly reactive materials
US4764056A (en) * 1985-12-19 1988-08-16 Basf Aktiengesellschaft Metering apparatus for introducing free-flowing, powdered substances in a controllable manner into spaces under pressure
US5439138A (en) * 1992-12-31 1995-08-08 Sedepro Dosaging device and method of dosaging
WO1996027432A1 (en) * 1995-03-07 1996-09-12 Biomolecular Assays, Inc. Pressure cycling reactor
US6036923A (en) * 1995-03-07 2000-03-14 Bioseq, Inc Pressure cycling reactor and methods of controlling reactions using pressure
US6569672B1 (en) 1995-03-07 2003-05-27 Bbi Bioseq, Inc. Pressure cycling reactor
DE19714504A1 (de) * 1997-04-08 1998-10-15 Krupp Polysius Ag Verfahren und Vorrichtung zum Vorbereiten von Feingutproben
DE19714504C2 (de) * 1997-04-08 1999-09-30 Krupp Polysius Ag Verfahren und Vorrichtung zum Vorbereiten von Feingutproben
WO2004039732A3 (en) * 2002-10-28 2005-03-17 Platinum Res Organization Llc Process for the production of metal fluoride materials
US20040126309A1 (en) * 2002-10-28 2004-07-01 Platinum Research Organization Llc Method for producing metal fluoride materials
US7261872B2 (en) 2002-10-28 2007-08-28 Platinum Intellectual Property, Lp Method for producing metal fluoride materials
US20040234446A1 (en) * 2002-10-28 2004-11-25 Platinum Research Organization Ltd. Process for the production of metal fluoride materials
US20080267855A1 (en) * 2003-09-15 2008-10-30 Greer F C Process for the production of metal fluoride materials with submicron structures
US8791056B2 (en) 2010-06-24 2014-07-29 Board Of Regents, The University Of Texas System Alkylphosphorofluoridothioates having low wear volume and methods for synthesizing and using same
CN102152962A (zh) * 2011-01-20 2011-08-17 西北工业大学 一种流量可控的高压环境送粉装置
CN102152962B (zh) * 2011-01-20 2012-10-10 西北工业大学 一种流量可控的高压环境送粉装置
US9725669B2 (en) 2012-05-07 2017-08-08 Board Of Regents, The University Of Texas System Synergistic mixtures of ionic liquids with other ionic liquids and/or with ashless thiophosphates for antiwear and/or friction reduction applications
CN102951448B (zh) * 2012-11-09 2015-04-22 裕东（中山）机械工程有限公司 一种方便粉末输送的装置
CN102951448A (zh) * 2012-11-09 2013-03-06 裕东（中山）机械工程有限公司 一种方便粉末输送的装置
US20230002087A1 (en) * 2013-12-26 2023-01-05 Altria Client Services Llc Slide measuring system for filling pouches and associated method
US12304672B2 (en) * 2013-12-26 2025-05-20 Altria Client Services Llc Slide measuring system for filling pouches and associated method
US12369614B2 (en) 2015-07-30 2025-07-29 Altria Client Services Llc Slide measuring system for filling pouches and associated method

Also Published As

Publication number Publication date
ES397869A1 (es) 1975-04-16
PL77084B1 (OSRAM) 1975-02-28
ZA718476B (en) 1972-09-27
BR7108372D0 (pt) 1973-05-03
GB1370492A (en) 1974-10-16
NL7117071A (OSRAM) 1972-06-20
JPS5423591B1 (OSRAM) 1979-08-15
AU452588B2 (en) 1974-09-05
RO60595A (OSRAM) 1976-08-15
ATA1080371A (de) 1976-03-15
DE2062513A1 (de) 1972-07-13
AT333525B (de) 1976-11-25
FR2118159B1 (OSRAM) 1976-02-13
FR2118159A1 (OSRAM) 1972-07-28
IT944040B (it) 1973-04-20
AU3693671A (en) 1973-06-21
BE776959A (fr) 1972-06-20
CA956280A (en) 1974-10-15
DE2062513B2 (de) 1979-02-15

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