GB668394A - Improvements in or relating to method of and apparatus for densifying dry powdered solids - Google Patents

Improvements in or relating to method of and apparatus for densifying dry powdered solids

Info

Publication number
GB668394A
GB668394A GB10331/49A GB1033149A GB668394A GB 668394 A GB668394 A GB 668394A GB 10331/49 A GB10331/49 A GB 10331/49A GB 1033149 A GB1033149 A GB 1033149A GB 668394 A GB668394 A GB 668394A
Authority
GB
United Kingdom
Prior art keywords
casing
screw
perforated
surrounded
exit end
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
Application number
GB10331/49A
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.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Monsanto Chemical Co
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 Monsanto Chemicals Ltd, Monsanto Chemical Co filed Critical Monsanto Chemicals Ltd
Publication of GB668394A publication Critical patent/GB668394A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
    • B65B63/02—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles
    • B65B63/028—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles by pneumatic means
    • 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
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/0052—Preparation of gels
    • B01J13/0069—Post treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/763—Vent constructions, e.g. venting means avoiding melt escape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Abstract

668,394. Screw pumps. MONSANTO CHEMICALS CO. April 19, 1949 [May 1, 1948], No 10331/49. Class 110(i) [Also in Group XVII] A device for densifying dry, powdered material, which contains occluded and included air, comprises a casing containing a rotatable screw conveyer 10 whose pitch increases progressively towards the exit end of the casing. The screw is surrounded by a freely-mounted, perforated, cylindrical member or wire screen 26 supporting a cylindrical canvas filter 24 which in turn is surrounded by a perforated, cylindrical member of wire screen 23 welded to the casing, the perforations in the member 26 being large compared with those in the member 23. The latter member is spaced from the wall 18 of the casing which is formed with a central pipe 25 connected to a source of vacuum. The member 26 may be omitted. The material is fed to the screw conveyer through an inlet 29 and is discharged from the exit end of the casing into packaging containers. Specification 649,896, [Group III], is referred to.
GB10331/49A 1948-05-01 1949-04-19 Improvements in or relating to method of and apparatus for densifying dry powdered solids Expired GB668394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US668394XA 1948-05-01 1948-05-01

Publications (1)

Publication Number Publication Date
GB668394A true GB668394A (en) 1952-03-19

Family

ID=22072037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10331/49A Expired GB668394A (en) 1948-05-01 1949-04-19 Improvements in or relating to method of and apparatus for densifying dry powdered solids

Country Status (1)

Country Link
GB (1) GB668394A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088031B (en) * 1958-10-30 1960-09-01 Engelsmann Akt Ges J Device for compacting voluminous substances
WO2001014210A1 (en) * 1999-08-23 2001-03-01 Ciba Specialty Chemicals Holding Inc. Method and device for densifying pulverized material
EP1400337B1 (en) * 2002-09-20 2007-08-22 Basf Aktiengesellschaft Apparatus and method for extrusion of thermoplastics and use thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1088031B (en) * 1958-10-30 1960-09-01 Engelsmann Akt Ges J Device for compacting voluminous substances
WO2001014210A1 (en) * 1999-08-23 2001-03-01 Ciba Specialty Chemicals Holding Inc. Method and device for densifying pulverized material
EP1283169A3 (en) * 1999-08-23 2003-03-05 Ciba Specialty Chemicals Holding Inc. Method and device for densifying pulverized material
US6688345B1 (en) 1999-08-23 2004-02-10 Ciba Specialty Chemicals Corporation Method and device for densifying pulverized material
EP1400337B1 (en) * 2002-09-20 2007-08-22 Basf Aktiengesellschaft Apparatus and method for extrusion of thermoplastics and use thereof

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