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WO2003064050A1 - Procede et dispositif de traitement et de classification d'une matiere granulaire - Google Patents

Procede et dispositif de traitement et de classification d'une matiere granulaire Download PDF

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Publication number
WO2003064050A1
WO2003064050A1 PCT/ES2003/000040 ES0300040W WO03064050A1 WO 2003064050 A1 WO2003064050 A1 WO 2003064050A1 ES 0300040 W ES0300040 W ES 0300040W WO 03064050 A1 WO03064050 A1 WO 03064050A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
granular
matter
paste
granular matter
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.)
Ceased
Application number
PCT/ES2003/000040
Other languages
English (en)
Spanish (es)
Inventor
Salvador Ruiz Asuncion
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to MXPA03008785A priority Critical patent/MXPA03008785A/es
Publication of WO2003064050A1 publication Critical patent/WO2003064050A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
    • B03B5/56—Drum classifiers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/08—Rotary bowls
    • B04B7/12—Inserts, e.g. armouring plates
    • B04B7/14—Inserts, e.g. armouring plates for separating walls of conical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/22—Revolving drums

Definitions

  • the present invention relates to a method and device for the treatment and classification of a granular material in general and of special application in the transformation of the common salt, obtained as raw material in the salt, and in particular for the recovery of the salt residual, not usable by dirt, oils or unusable elements adhered or mixed with their crystals.
  • the method and device object of the invention has the particularity of incorporating a series of operative elements, which allow in a first process the washing of the primary granular matter, such as raw salt, with water jets, while it is caused, by centrifuging the granular matter with the water, a rupture of said granular matter in other smaller grains and the separation of the mixed residues, by the knocking of the matter and the dragging by the water at the same time.
  • the primary granular matter such as raw salt
  • a mass of crumbled granular matter and water is obtained, such as salt paste, which is subjected to a second rinsing process by means of water showers, arranged inside a rotating chamber of concentric cylinders and / or in axial extension, which trans- They carry the granular paste, underwater and sieve in various grain sizes, which are collected in different outlets, classified by their diameter and according to the use that will be given to the treated material, which referring to salt, have been provided at least three different sizes of grain, one suitable for direct consumption such as table salt, a second size of coarser grain to preserve food and a third for use in various industries.
  • the salt obtained in the salt as raw material either by evaporation of sea water or salt lakes or by extraction of the earth in the form of solid mineral or saturated brine and once the impurities have been removed by natural or chemical precipitation of the calcium, potassium and magnesium salts, it is obtained crystallized from grains of sodium chloride of different diameter or even ingots, which they must be crushed until an adequate grain size is obtained for the use to which the salt is to be destined.
  • This conventional salt grinding operation presents the difficulty of not reaching a uniform grain in its diameter, resulting in many times that thicker grains are obtained, with others excessively crushed, forming a table salt powder, which although suitable for human consumption, it cakes very quickly with the environmental humidity, resulting in insufficient grain to be used as a food preservative, since a layer of salt with an adequate weight is required, which allows water to be extracted from said foods during the period of its Salting transformation.
  • the present invention presents a procedure and device for the treatment and classification of a granular matter, which manages to eliminate so thoroughly the impurities of the raw granular matter, which allows to take advantage of even the one that was eliminated an excess of waste, resulting in a granular matter with a diversity of homogeneous and uniform grains that are classifiable in various sizes, according to their use or destination.
  • the method and device for the treatment and classification of a granular matter, object of the invention is characterized in that it comprises:
  • the invention is also characterized in that the washing and breaking of the granular material is carried out by means of a centrifuge that forms several vertical chambers with conical walls, communicated with each other through a passage central, in each of which has a rotating vane endowed on its surface with helical ribs, which are able to rotate through a common vertical axis, which receives the movement of a motor system, in which rotation the vanes drive matter granulate and the water towards the walls of the chambers so that in their shock the breakage of the grain takes place in smaller ones, that are washed by the water and form a paste that is evacuated by a lower outlet.
  • the invention has provided that the feeding of the granular matter to the first chamber is carried out in a controlled manner, to avoid jams at its entry into the centrifuge, for which purpose the outlet duct of the upper hopper that receives the granular matter, directly discharges on the rotating vane of the chamber, which comprises a sheet with strategically arranged grooves, to drag the granular material that penetrates the vane through the grooves in its turn, and mixes with the wash water, which receives Superior driving
  • the invention is essentially characterized in that the rinsing and separation in grains of the paste is carried out by means of a sieve of concentric and / or axially extended, rotating and inclined axis tubes, with perforations of different diameter, through which the conduction of water with the showers, which irrigate the paste that enters the centrifuge, the outer tube being without perforations to channel the matter with a grain of a certain lower size and the residual water, until its exit.
  • the screen includes a receptacle associated with the rotating outer casing, arranged to extract, at each turn of the screen, the granular material sedimented in a well and / or tank, which receives of an exit of the sieve and whose residual water is eliminated by overflows of said well or vat.
  • Figure I a Represents by means of a perspective, a method of execution of the procedure and device for the treatment and classification of a granular matter, object of the invention.
  • a centrifuge that involves an upper hopper for loading the granular material and an upper water line for washing said load, whose lower outlet is connected to a rotating sieve of several concentric tubes, is easily appreciated.
  • On the outer cylinder there is a receptacle for the extraction of the granular matter deposited in the well or tank.
  • Figure 2 a Shows a perspective view of the centrifuge for washing and breaking the raw granular matter. It shows that it is made up of three vertical chambers with conical walls, communicated with each other by a central passage, in each of which a rotating vane is located, provided on its surface with helical ribs.
  • the outlet mouth of the receiving hopper of the raw granular material is located on the upper chamber vane, as well as an upper conduit that discharges the water into said chamber.
  • Figure 3 a Illustrates a longitudinal section of the centrifuge of the previous figure. It shows that the mouth of the outlet duct of the upper loading hopper is located on the rotating vane of the upper chamber and that the three rotating vanes are mounted on a vertical axis of rotation, which receives the movement of a drive system.
  • Figure 4 a It allows to appreciate a detail of the controlled discharge of the hopper outlet duct on the rotating vane. It shows that on the ribs of the rotating vane a sheet is welded, provided with strategic grooves through which the granular matter poured through the hopper outlet duct penetrates and is dragged by the rotating movement of the vane.
  • Figure 5 a Represents a longitudinal section of the screen for the classification and rinsing of the granular matter. It shows that it has two concentric pipes with an inclined axis and of different lengths, which are formed with a mesh of different pitch diameters, the innermost tube presenting a larger diameter passage than the outer one, which is partially wrapped by a housing external rotating with the tubes.
  • the larger inner mesh tube is connected at one end to the centrifuge and receives a water line for rinsing inside of the material.
  • the tube in outermost arrangement forms with the external housing, a chamber where a finer grain material is collected and evacuated along with the wastewater, through an outlet that will lead to a well or tank in a lower arrangement than the sieve, where the granular matter sediments, which is extracted by a receptacle associated with the rotating outer casing.
  • the device for the treatment and classification of a granular matter is constituted by a centrifuge -1- where the process of washing and breaking the granular matter occurs in smaller pieces.
  • Said centrifuge comprises a top-loading hopper -2- of the raw granular matter and a water line -3- for washing said matter.
  • Hopper -2- has a loading duct -15- that is located on the pallet -10- of the upper chamber, which has a circular plate on its helical ribs
  • the centrifuge has an outlet duct -18- that communicates with the sieve -19- where the process of rinsing and grading the granular matter is carried out.
  • the screen is made up of at least two concentric mesh tubes and inclined axes -20- and -21-, of which the inner tube -20-, has a mesh passage of greater diameter, than the outer tube -21, the latter being covered or partially covered, by an enclosing housing -22-, rotating with the tubes.
  • the inner tube -20- is connected at one end to the centrifuge and receives inside the water line -23- for rinsing the material that circulates inside.
  • the tube -21- forms with the external housing -22-, a chamber -24- where the smallest grain material and wastewater is collected that is evacuated through the outlet -25- to the well or tank -26- .
  • the granular matter of coarser grain which has not crossed the mesh of the tube -20-, is discharged through its mouth -28-.
  • the raw granular matter is introduced into the centrifuge -1-, through the loading hopper -2- and the washing water through the conduit -3-, entering the upper chamber -
  • the vanes -10-, -11- and -12- rotate by driving the granular matter and the water towards the conical walls of the chambers -4-, -5- and -6-, which pass from one to another, causing the breakdown of granular matter into smaller grains, which are washed by water, dragging impurities and forming a paste of crumbled granular material and water, which is evacuated through the duct exit -18- towards the sieve.
  • Said conduit -20- allows the passage through its mesh, to those grains that have a diameter smaller than its passage, the residual water and minor grains reaching the intermediate conduit -21-, which in turn lets pass through its mesh to the grains smaller than the diameter of their holes, that arrive with the residual water to the chamber -24-.
  • the finest grain and residual water, which is in the chamber -24- is evacuated from it by the outlet -25- that fills the pool -26- where the grain settles.
  • This grain is extracted from the well by means of the receptacle -29-, which associated with the housing -22- rotates with it and in each turn it extracts the sedimented grain, depositing it on a conveyor belt or in the appropriate place.
  • the average grain that is housed in the tube -21- is evacuated through its mouth -27- by being deposited on the ground or a conveyor belt.
  • 3 mm salt grains have been obtained. , which are suitable for being used in food preservation, due to their adequate weight to extract water from salted foods.
  • the salt with a grain greater than 3 mm. has been used for the industry.

Landscapes

  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

L'invention concerne un procédé et un dispositif de traitement et de classification d'une matière granulaire, incorporant des moyens de commande permettant d'exécuter un premier processus de lavage de la matière granulaire primaire avec des jets d'eau, tout en provoquant par centrifugation la rupture physique de la matière granulaire en d'autres grains de plus petite dimension, formant une pâte de matière granulaire fragmentée et d'eau, qui passe ensuite par un second processus de rinçage à l'aide de jets d'eau et par séparation de la masse, par criblage, en diverses dimensions de grain classifiées par différentes sorties et par évacuation de l'eau résiduelle.
PCT/ES2003/000040 2002-01-29 2003-01-24 Procede et dispositif de traitement et de classification d'une matiere granulaire Ceased WO2003064050A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MXPA03008785A MXPA03008785A (es) 2002-01-29 2003-01-24 Procedimiento y dispositivo para el tratamiento y clasificacion de una materia granular.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200200203A ES2193866B1 (es) 2002-01-29 2002-01-29 Procedimiento y dispositivo para el tratamiento y clasificacion de una materia granular.
ESP200200203 2002-01-29

Publications (1)

Publication Number Publication Date
WO2003064050A1 true WO2003064050A1 (fr) 2003-08-07

Family

ID=27635983

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2003/000040 Ceased WO2003064050A1 (fr) 2002-01-29 2003-01-24 Procede et dispositif de traitement et de classification d'une matiere granulaire

Country Status (4)

Country Link
ES (1) ES2193866B1 (fr)
MA (1) MA26235A1 (fr)
MX (1) MXPA03008785A (fr)
WO (1) WO2003064050A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101817000A (zh) * 2010-04-13 2010-09-01 新乡市高服筛分机械有限公司 离心式筛分机
CN108245993A (zh) * 2018-04-18 2018-07-06 东莞市叁益机械科技有限公司 磨液碎砂分离装置
CN108927323A (zh) * 2018-06-29 2018-12-04 李启同 一种建筑用砂石筛分装置的工作方法
CN110000082A (zh) * 2019-05-17 2019-07-12 陈常 一种建筑砂石自动过滤筛分系统
US10695697B2 (en) 2016-11-02 2020-06-30 Rotecna, S.A. Device for treating a slurry by separating solids from liquids

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747511A (en) * 1971-07-16 1973-07-24 L Palyi Device for humidifying corn
ES417093A3 (es) * 1973-07-20 1976-03-16 British Titan Ltd Un procedimiento para la trituracion de solidos en liqui- dos.
US4159242A (en) * 1977-08-08 1979-06-26 Leon Walker Coal washing apparatus
US4286748A (en) * 1980-05-19 1981-09-01 Bailey Albert C Centrifugal concentrator
US6000645A (en) * 1999-01-27 1999-12-14 Bfk Technologies, Inc. Axial flow, bi-rotor concrete reclaimer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747511A (en) * 1971-07-16 1973-07-24 L Palyi Device for humidifying corn
ES417093A3 (es) * 1973-07-20 1976-03-16 British Titan Ltd Un procedimiento para la trituracion de solidos en liqui- dos.
US4159242A (en) * 1977-08-08 1979-06-26 Leon Walker Coal washing apparatus
US4286748A (en) * 1980-05-19 1981-09-01 Bailey Albert C Centrifugal concentrator
US6000645A (en) * 1999-01-27 1999-12-14 Bfk Technologies, Inc. Axial flow, bi-rotor concrete reclaimer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101817000A (zh) * 2010-04-13 2010-09-01 新乡市高服筛分机械有限公司 离心式筛分机
US10695697B2 (en) 2016-11-02 2020-06-30 Rotecna, S.A. Device for treating a slurry by separating solids from liquids
CN108245993A (zh) * 2018-04-18 2018-07-06 东莞市叁益机械科技有限公司 磨液碎砂分离装置
CN108927323A (zh) * 2018-06-29 2018-12-04 李启同 一种建筑用砂石筛分装置的工作方法
CN110000082A (zh) * 2019-05-17 2019-07-12 陈常 一种建筑砂石自动过滤筛分系统
CN110000082B (zh) * 2019-05-17 2020-06-02 林飘飘 一种建筑砂石自动过滤筛分系统

Also Published As

Publication number Publication date
ES2193866B1 (es) 2005-03-01
MA26235A1 (fr) 2004-08-01
MXPA03008785A (es) 2005-12-14
ES2193866A1 (es) 2003-11-01

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