EP1857184A2 - Powder and granular materials doser through a flux splitting - Google Patents

Powder and granular materials doser through a flux splitting Download PDF

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Publication number
EP1857184A2
EP1857184A2 EP07425288A EP07425288A EP1857184A2 EP 1857184 A2 EP1857184 A2 EP 1857184A2 EP 07425288 A EP07425288 A EP 07425288A EP 07425288 A EP07425288 A EP 07425288A EP 1857184 A2 EP1857184 A2 EP 1857184A2
Authority
EP
European Patent Office
Prior art keywords
equipment
dosing
powder
flux
granular materials
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
EP07425288A
Other languages
German (de)
French (fr)
Other versions
EP1857184A3 (en
Inventor
Patrizia Migliaccio
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
Publication of EP1857184A2 publication Critical patent/EP1857184A2/en
Publication of EP1857184A3 publication Critical patent/EP1857184A3/en
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/144—Arrangements for supplying particulate material the means for supplying particulate material comprising moving mechanical means

Definitions

  • the off-the-shelf dosers are based on consolidated techniques like cochlea, vibration, and several volumetric systems. Each these methods has problems with powder microdosing or granular materials which are susceptible of clotting. To solve this problems are used complex techniques which have high costs.
  • This invention is referred to a dosing equipment for powder and granular materials, mentioned in the following as “dosing materials”, to be used in industrial and civil applications.
  • the dosing material (A) is in a container (B) with a small hole (C) on one of the walls.
  • the material (A) cannot go out, since the hole is too small in this situation.
  • the dosing material (A) is fluidified (D) in proximity of the hole (C).
  • the material flows through the hole (C) in a stabilized small quantity (E).
  • the dosing material (A) is within the container (B) and it is shaked by a shovel (H) moved by a motor (I) to break every clots. In such a way, it is guaranteed homogeneously and constantness of dosing material on the rotating element (F) moved by the motor (G).
  • the movement of the rotating element (F) creates a main rotating flux of the dosing material.
  • the main flux is divided in a secondary flux (E) through a calibrated hole (C) at a specific distance and positon.
  • the secondary flux (E) output the dosing material of the equipment.
  • the equipment enable a continous regolation of output mass flow in two modes: changing the main flux capacity through the speed regulation of the rotating element (F) or changing position, dimension and geometry of output hole (C).
  • the easy method is to fix the dimension and position of output hole (C) and regulates the capacity through the speed of the rotating element (F).
  • the calibrated aperture of the equipment can be fixed or interchangable and with fixed area or at variable geometry. This enable several range of capacities and the equipment can be adapted to specific phisical and fluid dynamic characteristic of dosing material.
  • the figures show an example with one main rotating flux and only one output hole, but it is possible to be applied to every type of flux and to every number of output holes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Glanulating (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

The following invention is referred to an equipment to dose powders (A) and/or granular materials to be used in industrial or civil applications.
The equipment is based on a main flux of powder or granular materials splitted in a secondary flux (E) via a calibrated hole (C). In such a way the secondary flux (E) is moved out of the container to obtain a precise dosing of the material.

Description

  • The precise dosing of powders and of granular materials is one of the main problems for a lot of industrial processes or civil applications.
  • The off-the-shelf dosers are based on consolidated techniques like cochlea, vibration, and several volumetric systems. Each these methods has problems with powder microdosing or granular materials which are susceptible of clotting. To solve this problems are used complex techniques which have high costs.
  • This invention is referred to a dosing equipment for powder and granular materials, mentioned in the following as "dosing materials", to be used in industrial and civil applications.
  • Every powder and granural material acts as a not Newtonian fluid. If you fluidify these materials, their behaviour is similar to liquid behaviour. The figures show the behaviour principle of the equipment.
  • In figure 1, the dosing material (A) is in a container (B) with a small hole (C) on one of the walls. The material (A) cannot go out, since the hole is too small in this situation.
  • In figure 2, the dosing material (A) is fluidified (D) in proximity of the hole (C). The material flows through the hole (C) in a stabilized small quantity (E).
  • This very simple and efficient principle is the base of this invention.
  • On figure 3, it can be seen a practical example of equipment realization. The dosing material (A) is within the container (B) and it is shaked by a shovel (H) moved by a motor (I) to break every clots. In such a way, it is guaranteed homogeneously and constantness of dosing material on the rotating element (F) moved by the motor (G). The movement of the rotating element (F) creates a main rotating flux of the dosing material. The main flux is divided in a secondary flux (E) through a calibrated hole (C) at a specific distance and positon. The secondary flux (E) output the dosing material of the equipment.
  • The equipment enable a continous regolation of output mass flow in two modes: changing the main flux capacity through the speed regulation of the rotating element (F) or changing position, dimension and geometry of output hole (C). The easy method is to fix the dimension and position of output hole (C) and regulates the capacity through the speed of the rotating element (F).
  • All elements must be properly dimensioned to apply the principle of this invention in function of granulometry, phisical and fluidodynamic characteristics of dosing material and the desired output flux.
  • The calibrated aperture of the equipment can be fixed or interchangable and with fixed area or at variable geometry. This enable several range of capacities and the equipment can be adapted to specific phisical and fluid dynamic characteristic of dosing material.
  • The figures show an example with one main rotating flux and only one output hole, but it is possible to be applied to every type of flux and to every number of output holes.

Claims (5)

  1. Powder and granular material dosing equipment which uses a main flux splitted into one or more secondary fluxes through one or more calibrated holes.
  2. A dosing equipment as in claim 1 with the main flux that could be rotating, linear of any other types
  3. A dosing equipment as in claim 1 with any type of calibrated holes, fix or interchangable, with a fixed area or variable geometry to adapt the equipment to different mass flows, to different types of powders or granulometry, and to different physical and fluid dynamics characteristics of the dosing material
  4. A dosing equipment with the possibility to change the output mass flow regulating the main mass flow.
  5. A dosing equipment with the possibility to regulate the output mass flow, changing position, size, and shape of output holes
EP07425288A 2006-05-19 2007-05-17 Powder and granular materials doser through a flux splitting Ceased EP1857184A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITNA20060062 ITNA20060062A1 (en) 2006-05-19 2006-05-19 DOSER FOR DUST AND / OR GRANULARS WITH FLOW DIVISION FOR INDUSTRIAL AND CIVIL APPLICATIONS

Publications (2)

Publication Number Publication Date
EP1857184A2 true EP1857184A2 (en) 2007-11-21
EP1857184A3 EP1857184A3 (en) 2008-07-02

Family

ID=38283539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07425288A Ceased EP1857184A3 (en) 2006-05-19 2007-05-17 Powder and granular materials doser through a flux splitting

Country Status (2)

Country Link
EP (1) EP1857184A3 (en)
IT (1) ITNA20060062A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111301730A (en) * 2020-04-09 2020-06-19 无为市泉康防护用品厂 Gauze mask machine waste recycling packing apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITNA20040059A1 (en) * 2004-10-25 2005-01-25 Errico Pietro D DOSER FOR DUST AND / OR GRANULAR CENTRIFUGAL ACTION FOR INDUSTRIAL AND CIVIL USE.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111301730A (en) * 2020-04-09 2020-06-19 无为市泉康防护用品厂 Gauze mask machine waste recycling packing apparatus

Also Published As

Publication number Publication date
ITNA20060062A1 (en) 2007-11-20
EP1857184A3 (en) 2008-07-02

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