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WO2020160631A1 - Treillis modulaire pour tri cubique et lamellaire dans des tamis vibrants et systèmes vibrants indépendants - Google Patents

Treillis modulaire pour tri cubique et lamellaire dans des tamis vibrants et systèmes vibrants indépendants Download PDF

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Publication number
WO2020160631A1
WO2020160631A1 PCT/BR2019/050442 BR2019050442W WO2020160631A1 WO 2020160631 A1 WO2020160631 A1 WO 2020160631A1 BR 2019050442 W BR2019050442 W BR 2019050442W WO 2020160631 A1 WO2020160631 A1 WO 2020160631A1
Authority
WO
WIPO (PCT)
Prior art keywords
sorting
mesh
cubic
lamellar
rods
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/BR2019/050442
Other languages
English (en)
Inventor
Adalberto ANDRELLO
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.)
Haver and Boecker OHG
Original Assignee
Haver and Boecker OHG
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
Priority claimed from BR102019002597-2A external-priority patent/BR102019002597B1/pt
Application filed by Haver and Boecker OHG filed Critical Haver and Boecker OHG
Priority to PE2021001061A priority Critical patent/PE20212279A1/es
Publication of WO2020160631A1 publication Critical patent/WO2020160631A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4645—Screening surfaces built up of modular elements
    • 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
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/469—Perforated sheet-like material

Definitions

  • This description report refers to an invention patent application concerning a modular mesh, in two different configurations, for vibrating screening equipment, which can be used to sort any bulk material, particularly in the mining, recycling, fertilizing, and other industries where processing of the product to be sorted is critical, that is, when the same is too sticky due to its mineralogical composition, moisture, and granulometric curve.
  • screening is the process of separating some non-cohesive granulated material into two or more different size classes and particles, by means one or more perforated surfaces with openings of defined sizes .
  • This size sorting is therefore performed by a mechanical barrier, which is made up by the wires of the cloth of a plate or mesh.
  • screening is defined as the process of sorting a granulated material according to particle size into two or more fractions, by means of one or more perforated surfaces - or meshes.
  • Sorting which is the mineral preparation, means a separation by size, that is, separating the fragments or particles into classes (discrete values), each class encompassing those sizes between two defined limits.
  • its sizes can be classified as: “oversize”, which is the material retained, that is, the class of particles of sizes larger than the cloth aperture; “undersize” , which is the passing material, that is, the material fraction made up of particles of sizes smaller than the mesh or screening aperture; and “nearsize” , which is the material fraction made up of particles of equal or very close size to the cloth or the screening aperture.
  • vibrating screens are equipment known to be responsible for recovering the products and be capable of separating them into up to five fractions, thus increasing the screening precision and efficiency, especially intended for intermediate and final separation in dry or wet screening processes .
  • the shapes of a vibrating screen vary a lot and their size varies according to the capacity, sorting cut, and dimensions of the materials that will be worked on, receiving different types of mesh for the various types of materials.
  • FIG. 1 of the attached drawings for example purposes, an image was taken from document MU7701590-8, titled “Layout introduced for fasteners of modular components forming screening equipment for the mining industry”, which shows modular screen plates installed to the support of vibrating screens .
  • different modules are sought, in the form of plates, some of which perforated by means of a myriad of "conical” holes, as well as “U” profiles, a bottom structure, and other structural components to assemble the screen structure.
  • the meshes available on the market these days have most of the ore processing conducted in them with no water injection, that its, with natural humidity.
  • the mines located in the Amazon region where, during the rainy season, the natural humidity of the iron ore is as high as over 10%, a high proportion of fines can be seen (below 150 microns), making the material extremely sticky (cohesive) and preventing its sorting through vibrating screens. Due to its large specific surface, fines aggregate and get glued to larger grains (oversize), making the meshes exhibit low performance.
  • the inventor has developed a modular mesh for a cubic or lamellar sorting, which increases the release acceleration of the ore particles (or others) toward the screen by at least 500%, thus preventing the sticky material from getting caught in the meshes and enabling any "nearsize" material to be sorted without getting trapped in the mesh wires, in addition to disaggregating very fine materials (smaller than 150 microns) from a more granulated material (thick), therefore avoiding an operator needing to stop the screening process to clean the screens, thus effectively increasing production performance.
  • the meshes In order to be installed to vibrating screens, based on a bottom fitting, the meshes exhibit their own dynamic condition larger than the dynamic condition of the vibrating screen thanks to their configuration, which is divided into independent, partially loose rods, which allows for independent movement, improving product stratification and, as a consequence, better sorting .
  • FIG. 1 Figure 2 - top view of the mesh in its configuration for cubic sorting, with rods equipped with perpendicular segments that form the mesh and its openings, as shown in the top view in its zoomed detail A, also showing that its edges are free, detached from the screen body;
  • FIG. 3 Figure 3 - bottom view of the mesh in its configuration for cubic sorting, showing its lower pass-through cuts, constituting female fittings for vibrating screens;
  • FIG. 4 Figure 4 - top view of the mesh in its configuration for lamellar sorting, with rods laid out with uniform spacing that form the mesh and its openings and with free edges that cross the upper corner of its internal wall;
  • FIG. 5 Figure 5 - bottom view of the mesh in its configuration for lamellar sorting, showing its bottom cross-sections, constituting female fittings for vibrating screens;
  • FIG. 6 perspective view of a vibrating screen to which the meshes were installed (in this case, in a cubic sorting configuration) through its bottom female fittings;
  • FIG. 7 Figure 7 - top view of the mesh in a configuration for lamellar sorting, with detail B where the internal rear face is highlighted from which the rods extend, and the sequence of details C and D highlight the opposite edge of the rods, loose, moving independently from the mesh, in its own vibration caused by the screen vibration;
  • FIG. 8 Figure 8 - top view of the mesh in a configuration for cubic classification, with detail E where the inner rear face is highlighted from which the rods extend.
  • the sequence of details F and G highlight the opposite edge of the rods, loose, moving independently from the mesh, in its own vibration caused by the screen vibration.
  • the "MODULAR MESH FOR CUBIC AND LAMELLAR SORTING IN VIBRATING SCREENS AND INDEPENDENT VIBRATING SYSTEM” which is the subject of this invention patent application, is made up, as shown in figures 2 and 3 , of a mesh for cubic sorting ( 1 ) formed by a square body (2), which is equipped with a pair of lower pass through cuts, forming female fittings (3) and in a frame configuration, that is, centrally perforated, the inner rear face of which (4) serves as basis for a grid formed by a pattern of rods (5) longitudinally extended, parallel and equidistant to each other, toward the opposite front-side edge (6), without touching it, with the body of said rods (5) interrupted by a number of perpendicular segments (7) with uniform spacing to such a length that each perpendicular segment (7) will not touch the perpendicular segment (7) of the next rod or the side internal faces (8) of the square body (2) .
  • a second mesh for lamellar sorting 10
  • a square body ( 1 1 ) equipped with a pair of lower pass-through cuts, forming female fittings (3 ) and in a frame configuration, that is, centrally perforated, the inner rear face ( 12) of which serves as basis for an extending grid formed by a pattern of rods ( 13) with a rectilinear upper face ( 14), parallel and equidistant to each other, extended longitudinally and at an angle, passing over the opposite front-side face ( 15), until they touch its border, above the top face of the square body ( 1 1 ) .
  • the spaces in the pattern of rods ( 13 ) form the openings (9) of the grid.
  • Both meshes ( 1 and 10) are made of polyurethane (PU) supported by an internal metallic armature.
  • PU polyurethane
  • the cubic ( 1 ) and lamellar ( 10) meshes will be fitted into various units in the supporting profiles of the vibrating screen (P) to be used, as shown in figure 6, through its lower female fittings (3), fastened together to form some sort of belt, as is usual in traditional vibrating screen systems (P) .
  • the type of mesh (for either cubic ( 1 ) or lamellar ( 10) sorting) to be installed in each deck of the screen (P) is decided by the installation professional, depending on the application.
  • the lamellar mesh ( 10) will be in the upper deck of the screen (P), as a relief mesh for a first contact and primary separation of the material, and the cubic mesh ( 1 ) will be in the lower (or intermediate) deck of the screen (P) for final sorting of the material.
  • the rods (5 and 13 ) of its meshes ( 1 and 10) amplify the general dynamic condition of the screening process, increasing the release acceleration of the material and enabling good performance, particularly when critical material is processed, that is, material with higher humidity and proportion of fines (smaller than 150 microns), also providing better bed stratification, so that the larger particles will be positioned above and, as a consequence, the smaller ones will be at the bottom.
  • the independent vibration of the rods (5 and 13) of the meshes ( 1 and 10) also prevents "nearsize"- type particles, that is, those of similar or very close size than the openings (9) , from getting trapped in the latter, as well as causes the release or disaggregation of fines from thicker particles, therefore avoiding clogging, providing a much more precise material sorting, reducing the frequency of machine shutdown for mesh cleaning and unclogging, and increasing, as a consequence, screening performance.

Landscapes

  • Combined Means For Separation Of Solids (AREA)

Abstract

Pour augmenter l'accélération de libération des particules dans des tamis vibrants, empêcher tout matériau collant d'être piégé dans les treillis et permettre à tout matériau "presque de la taille" d'être trié sans être pris entre les fils, en plus de désagréger les fines de particules plus épaisses. À cet effet, un treillis à deux configurations, l'un pour le tri cubique final, et un autre pour le tri en relief lamellaire, a ses fils constitués de tiges indépendantes partiellement lâches, ce qui permet un mouvement indépendant lors de la vibration du tamis auquel il est fixé, améliorant la stratification du produit et, en conséquence, permettant un meilleur tri.
PCT/BR2019/050442 2019-02-08 2019-10-10 Treillis modulaire pour tri cubique et lamellaire dans des tamis vibrants et systèmes vibrants indépendants Ceased WO2020160631A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PE2021001061A PE20212279A1 (es) 2019-02-08 2019-10-19 Malla modular para clasificacion cubica y laminar en tamices vibratorios y sistema de vibracion independiente

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102019002597-2A BR102019002597B1 (pt) 2019-02-08 Tela modular para classificação cúbica e lamelar em peneiras vibratórias e sistema de vibração independente
BRBR102019002597-2 2019-02-08

Publications (1)

Publication Number Publication Date
WO2020160631A1 true WO2020160631A1 (fr) 2020-08-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BR2019/050442 Ceased WO2020160631A1 (fr) 2019-02-08 2019-10-10 Treillis modulaire pour tri cubique et lamellaire dans des tamis vibrants et systèmes vibrants indépendants

Country Status (3)

Country Link
CL (1) CL2021001724A1 (fr)
PE (1) PE20212279A1 (fr)
WO (1) WO2020160631A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113680796A (zh) * 2021-08-23 2021-11-23 江苏省农业科学院 一种用于餐厨垃圾资源化利用的高效预处理方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322170A (en) * 1990-12-11 1994-06-21 The Read Corporation Waste material separating apparatus and method
US5769240A (en) * 1995-10-11 1998-06-23 Western Wire Works, Inc. Screening systems and methods for screening particulate material
US20070278137A1 (en) * 2006-03-24 2007-12-06 Dieter Takev Screen device and method of making the same
US8708154B1 (en) * 2011-12-23 2014-04-29 Tim Holmberg Adjustable spring grizzly bar material separator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5322170A (en) * 1990-12-11 1994-06-21 The Read Corporation Waste material separating apparatus and method
US5769240A (en) * 1995-10-11 1998-06-23 Western Wire Works, Inc. Screening systems and methods for screening particulate material
US20070278137A1 (en) * 2006-03-24 2007-12-06 Dieter Takev Screen device and method of making the same
US8708154B1 (en) * 2011-12-23 2014-04-29 Tim Holmberg Adjustable spring grizzly bar material separator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113680796A (zh) * 2021-08-23 2021-11-23 江苏省农业科学院 一种用于餐厨垃圾资源化利用的高效预处理方法
CN113680796B (zh) * 2021-08-23 2023-06-09 江苏省农业科学院 一种用于餐厨垃圾资源化利用的高效预处理方法

Also Published As

Publication number Publication date
PE20212279A1 (es) 2021-11-30
BR102019002597A2 (pt) 2019-05-28
CL2021001724A1 (es) 2021-12-31

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