Screening media

Patent metadata

Field	Value
Publication number	US-2016114356-A1
Application number	US-201414786850-A
Country	US
Kind code	A1
Filing date	Mar 10, 2014
Priority date	Apr 25, 2013
Publication date	Apr 28, 2016
Grant date	—

Abstract

A screening media of a vibrating screen screens fractions of stone or gravel. The screening media is formed of ribs extending from one end of the screening media to the opposite end thereof. Pins projecting perpendicularly from the ribs are placed on opposite sides of the ribs. Each pin ends at a distance from an adjacent rib. The dimension and placement of the pins are such that a continuous aperture is formed between two adjacent ribs. Each aperture is formed of a number of rectangular screening areas of identical size. Each screening area is placed perpendicular to each adjacent screening area and end areas of adjacent screening areas coincide.

First claim

1 . A screening media of a vibrating screen for screening fractions of stones or gravel, the screening media of comprising:
a plurality of ribs extending from one end of the screening media to an opposite end thereof; and a plurality of pins projecting perpendicularly from the ribs on opposite sides of each rib and ending at a distance from an adjacent rib the dimension and placement of the pins are such that there is formed a continuous aperture between two adjacent ribs, each aperture being formed of a number of rectangular screening areas of identical sizes, each screening area being placed perpendicular to each adjacent screening area and that end areas of adjacent screening areas coincide.

2 . The screening media of claim 1 , wherein a pin projecting from one rib is positioned in the middle between two pins projecting from the adjacent rib.

3 . The screening media of claim 1 , wherein the pins on each side of the ribs are placed with even spacing and the distance between adjacent pins is the same as a distance between a free end of each pin and an adjacent rib and a distance with which two adjacent pins on adjacent ribs extend past each other.

4 . The screening media of claim 1 , wherein an upper surface of each pin is flush with an upper surface of each rib.

5 . The screening media of claim 1 , wherein each rib extends above an upper surface of each pin.

6 . The screening media of claim 5 , wherein each rib has a rounded upper surface.

7 . The screening media of claim 1 , wherein each rib extends in a direction of motion of matters to be screened.

8 . The screening media of claim 1 , wherein each rib includes a reinforcement placed inside the rib and extending all the length of the rib.

9 . The screening media of claim 8 , wherein the reinforcement is made of a polymeric material.

10 . The screening media of claim 7 , wherein a bar is disposed in a middle of the screening panel with an extension perpendicular to the direction of motion for the fraction to be screened.

11 . The screening media of claim 10 , wherein an upper surface of the bar is flush with an upper surface of the pins.

12 . The screening media of claim 1 , wherein the screening media is made by injection moulding.

13 . The screening media of claim 12 , wherein the screening media is injection moulded together with reinforcements of the ribs.

14 . The screening media of claim 1 , wherein the screening media is a screening panel.

Assignees

• Sandvik Intellectual Property

Inventors

• Malmberg Mats

Classifications

• B07B1/4618

  Manufacturing of screening surfaces · CPC title

• B07B1/4609 Primary

  constructional details of screening surfaces or meshes · CPC title