RU2296630C2 - Jigging sieve - Google Patents

Abstract

FIELD: technique for separation of bulk materials by particle sizes, used in mining, metallurgical and other branches of industry.

SUBSTANCE: jigging sieve has elastic base with openings and transverse ribs provided on lower side of elastic base and equipped with formed-in reinforcing members, said ribs being arranged between openings. Reinforcing members are made in the form of reinforcing filaments. Longitudinal ribs additionally provided on lower side of elastic base are joined to transverse ribs and arranged between openings. Additional formed-in reinforcing filaments are connected with reinforcing filaments of transverse ribs at transverse and longitudinal ribs intersection sites through nodes, with ends of reinforcing filaments being inserted into elastic base.

EFFECT: enhanced reliability in operation of jigging sieve.

5 dwg

Description

The invention relates to techniques for the separation of bulk materials by particle size and can be used in mining, metallurgical and other industries.

In the current level of technology, an analogue is known - a screen sieve from the book ″ Naduty V.P., Zolotareva V.L. Polymeric screening surfaces of vibrating screens. - M .: Nedra, 1993 "- p.119, Figure 11. This sieve contains an elastic base with holes. These features of the analogue coincide with the essential features of the invention. The disadvantage of this sieve is its rapid wear, since reduced stiffness creates conditions for fatigue fracture.

This disadvantage is less in the prototype - screen sieve according to patent GB 1176997A, 04/15/1970, 07 1/46, 7 C. This sieve contains an elastic base with holes, the bottom of which has transverse ribs with reinforcing elements formed in them, placed between the holes. These features are common with the essential features of the invention.

The disadvantage of the prototype is that it does not increase rigidity, which also creates the conditions for fatigue fracture.

The basis of the invention the task is to increase the reliability of the sieve when using the invention.

The problem is solved in that in a screen sieve, which contains an elastic base with holes, from the bottom of which there are transverse ribs with reinforcing elements formed in them, placed between the holes, according to the invention, the reinforcing elements are made in the form of reinforcing threads, and longitudinally additionally are made from the bottom of the elastic base ribs joined to the transverse ribs and located between the holes, and additional reinforcing threads are formed into the longitudinal ribs, which are at the intersections the ribs are knotted with reinforcing threads of the transverse ribs, while the ends of the reinforcing threads are brought into an elastic base.

This allows you to increase the rigidity of the sieve and thereby reduce the conditions for fatigue fracture. All this leads to increased reliability of the sieve.

Figure 1 shows a side view of a sieve; figure 2 is a top view; figure 3 shows a section along aa of figure 2, figure 4 shows a section along bb of figure 2, and figure 5 is a section along bb of figure 2.

The sieve of the screen consists of an elastic base 1 with holes 2. The elastic base has supporting protrusions 3 by which the sieve is installed in the longitudinal supports 4 of the screen. Bottom of the elastic base is made of transverse ribs 5 located between the holes. Reinforcing threads 6 are molded into these ribs. Additionally, longitudinal ribs 7 are made between the holes from the bottom of the elastic base, and additional reinforcing threads 8 are formed therein, which are connected at the points of intersection of the ribs by nodes 9 with reinforcing threads of transverse ribs. The ends 10 of the reinforcing threads at the ends of the ribs are brought into the elastic base 1.

During the operation of the screen, the movement of the sieve is transmitted from the longitudinal supports 4 of the screen through the support protrusions 3. The screen material falls onto the elastic base 1, moves along it and its small fraction is sifted into the sublattice through holes 2. At the same time, ribs 5 and 7 together with reinforcing threads 6 and 8 provide increased sieve rigidity when using rubber with low and medium hardness, which is selected according to the conditions of minimal wear. At the same time, the nodes 9, which are connected with the reinforcing threads 6 and 8, as well as the ends 10 of the reinforcing threads, wound into an elastic base 1, contribute to a further increase in the rigidity of the sieve and create conditions under which it is impossible to peel off the reinforcing sieve. All this increases the reliability of the sieve.

Claims (1)

Screen sieve containing an elastic base with holes, below which there are transverse ribs with reinforcing elements formed in them, placed between the holes, characterized in that the reinforcing elements are made in the form of reinforcing threads, and longitudinal ribs joined to the transverse ribs are additionally made from the bottom of the elastic base and located between the holes, and additional reinforcing threads are formed into the longitudinal ribs, which are connected at the points of intersection of the ribs by nodes with reinforcing threads along pepper ribs, while the ends of the reinforcing threads are brought into an elastic base.

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