WO1996014140A1 - Moyen pour melanger une poudre avec un liquide pour former une boue epaisse - Google Patents

Moyen pour melanger une poudre avec un liquide pour former une boue epaisse Download PDF

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Publication number
WO1996014140A1
WO1996014140A1 PCT/SE1995/001291 SE9501291W WO9614140A1 WO 1996014140 A1 WO1996014140 A1 WO 1996014140A1 SE 9501291 W SE9501291 W SE 9501291W WO 9614140 A1 WO9614140 A1 WO 9614140A1
Authority
WO
WIPO (PCT)
Prior art keywords
slurry
cistern
liquid
container
powder
Prior art date
Application number
PCT/SE1995/001291
Other languages
English (en)
Inventor
Stefan Allert
Original Assignee
Stefan Allert
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 Stefan Allert filed Critical Stefan Allert
Priority to EP95938088A priority Critical patent/EP0790857A1/fr
Priority to AU38849/95A priority patent/AU3884995A/en
Publication of WO1996014140A1 publication Critical patent/WO1996014140A1/fr
Priority to NO971958A priority patent/NO971958L/no
Priority to DK049897A priority patent/DK49897A/da
Priority to FI971975A priority patent/FI971975A/fi

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/02—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing
    • B28C5/06—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions without using driven mechanical means effecting the mixing the mixing being effected by the action of a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/50—Circulation mixers, e.g. wherein at least part of the mixture is discharged from and reintroduced into a receptacle

Definitions

  • the object of the present invention is to produce a slurry with a dry solids content of up to 85% and, according to the invention, this is achieved by supplying both powder and liquid to a container to be mixed therein.
  • the container has an outlet at its bottom and said outlet is connected to a pump that, in one way or another, transports liquid from the outlet to the container in such a way that liquid under pressure from the outlet is sprayed into the slurry inside the container in such a way that the jet introduced into the container effects rotation of the slurry already in the container. It is recommended that the jet is directed approximately so that it is substantially at a tangent to the actual liquid quantity. The jet may thus be perpendicular to a radius of the liquid quantity.
  • the jet may be directed obliquely upwards, obliquely downwards or exactly tangentially and several jets may be arranged around the periphery of the container.
  • the jets may also be arranged along the height of the container. Slurry produced in this manner has great permanence thanks to its high dry solids content which results in the individual particles in the slurry taking a long time to reach the bottom of the container.
  • the powder to be mixed with liquid may be of various types. Lime has proved to be a suitable product and lime in slurry form is extremely suitable for liming ground areas. The advantage here is that the lime tor reducing; aridity in ground areas is not blown awav since it is in the form of a sturrv.
  • Figure 1 shows a mixer according to the invention seen from the side and Figure 2 shows the mixer in Figure 1 seen from above.
  • the drawings show a cistern 1 with a lid 2 and two channels 3 and 4 for the supply of liquid and powder.
  • the lower end of the cistern 1 is provided with an outlet which is connected to an outlet pipe 5, in turn connected to a pump 6 which may be a centrifugal pump, for instance.
  • the outlet end of the pump is provided with a connection 7 to the cistern, the connection 7 having an orifice opening into the cistern, below the surface of the slurry in the cistern.
  • the inner surface of the connection 7 is provided with a nozzle directed so that slurry in the cistern is set in rotation about the axis of the cistern.
  • the nozzle it is therefore suitable for the nozzle to be directed substantially perpendicularly to the radius of the cistern, in which case it may be situated between the centre and the periphery of the cistern.
  • Several nozzles may also be arranged in parallel beside each other. Said nozzle may also be directed slightly upwardly, slightly downwardly or purely horizontally in relation to the cistern.
  • the nozzles may also be arranged around the periphery of the cistern and they may also be placed between the upper and lower ends of the cistern. However, the nozzles must always be located below the surface of the slurry in the cistern.
  • the cistern may of course be provided with a mechanical stirrer if necessary.
  • the device according to the invention functions by liquid first being supplied to the container and then tapped at the bottom of the container and returned to the container via the pump 6, whereupon the liquid is immediately set in rotation about the axis of the cistern.
  • powder is added. Thanks to said rotation, the present invention allows a slurry to be produced having a dry solids content of up to 85%. Slurry with this dry solids content can be withdrawn by suitable means from the cistern 1 for any purpose desired. It has been found that, when the powder used is lime, the slurry obtained is particularly suitable for liming ground areas. Liming was previously carried out using only dry substance but supplying it in the form of a slurry gives the advantage that the wind cannot influence it to the same extent as a dry substance.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Un agitateur à jet comprend un récipient (1) qui est alimenté par deux conduites (3, 4) servant à introduire des produits utilisés pour réaliser une boue épaisse. On génère une pression à l'aide d'une pompe (6) dans une partie du mélange qui est retourné dans le récipient par une buse, en provoquant une rotation du mélange.
PCT/SE1995/001291 1994-11-08 1995-11-01 Moyen pour melanger une poudre avec un liquide pour former une boue epaisse WO1996014140A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP95938088A EP0790857A1 (fr) 1994-11-08 1995-11-01 Moyen pour melanger une poudre avec un liquide pour former une boue epaisse
AU38849/95A AU3884995A (en) 1994-11-08 1995-11-01 Means for mixing a powder with a liquid to form a slurry
NO971958A NO971958L (no) 1994-11-08 1997-04-28 Anordning for å blande et pulver med en væske for å danne en slurry
DK049897A DK49897A (da) 1994-11-08 1997-05-01 Indretning til blanding af et pulver med en væske for dannelse af en suspension
FI971975A FI971975A (fi) 1994-11-08 1997-05-07 Välineet jauheen sekoittamiseksi nesteen kanssa lietteen muodostamiseksi

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9403816-3 1994-11-08
SE9403816A SE503767C2 (sv) 1994-11-08 1994-11-08 Anordning för att blanda ett pulver med en vätska till slam

Publications (1)

Publication Number Publication Date
WO1996014140A1 true WO1996014140A1 (fr) 1996-05-17

Family

ID=20395877

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1995/001291 WO1996014140A1 (fr) 1994-11-08 1995-11-01 Moyen pour melanger une poudre avec un liquide pour former une boue epaisse

Country Status (7)

Country Link
EP (1) EP0790857A1 (fr)
AU (1) AU3884995A (fr)
DK (1) DK49897A (fr)
FI (1) FI971975A (fr)
NO (1) NO971958L (fr)
SE (1) SE503767C2 (fr)
WO (1) WO1996014140A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6200937B1 (en) 1998-06-09 2001-03-13 Neutrogena Corporation Anti-residue shampoo and liquid toiletry production method
CN105946113A (zh) * 2016-05-23 2016-09-21 肥西县鑫山机械厂 风动式水泥注浆搅拌桶
CN106738331A (zh) * 2016-12-13 2017-05-31 顾广才 一种水泥搅拌过程中的反应釜装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422918A (en) * 1943-07-05 1947-06-24 Murray Corp Burner grid

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DIALOG INFORMATION SERVICES, File 347, Japio Database, Accession Number 03776126, HISAKA WORKS LTD, "Apparatus for Supplying Powder to Mixing Tank and Mixing Same"; & DIALOG INFORMATION SERVICES, File 351, World Patent Index 81-96, Dialog Accession No. 009085401, WPI Accession No. 92-212818/26, HISAKA SEISAKUSHO KK., *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6200937B1 (en) 1998-06-09 2001-03-13 Neutrogena Corporation Anti-residue shampoo and liquid toiletry production method
CN105946113A (zh) * 2016-05-23 2016-09-21 肥西县鑫山机械厂 风动式水泥注浆搅拌桶
CN106738331A (zh) * 2016-12-13 2017-05-31 顾广才 一种水泥搅拌过程中的反应釜装置

Also Published As

Publication number Publication date
NO971958D0 (no) 1997-04-28
AU3884995A (en) 1996-05-31
NO971958L (no) 1997-04-28
SE9403816L (sv) 1996-05-09
EP0790857A1 (fr) 1997-08-27
FI971975A0 (fi) 1997-05-07
SE503767C2 (sv) 1996-08-26
FI971975A (fi) 1997-05-07
DK49897A (da) 1997-05-01
SE9403816D0 (sv) 1994-11-08

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