SU1228896A1 - Gravity feeder of loose materials - Google Patents

Description

The invention relates to loading devices that allow the rock to be evenly distributed and to regulate its level around the crushing cavity of cone crushers used in various areas of the national economy, in particular for fine crushers.

The purpose of the invention is to simplify the design and increase reliability.

FIG. 1 schematically depicts a gravity feeder, the general view in FIG. 2 - the same plan view.

The gravitational feeder consists of a hopper 1, installed by means of a cross 2 and rods 3 on the crusher support ring 4, intended for receiving and passing through the intermediate pipe 5 of the material, a shut-off valve in the form of a straight cone 6, illuminated in the center of the bunker 1 by means of vertical pull 7 with the spring 8 fixed at its ends by means of the spokes 9 and the cross 2, and intended to change the width of the discharge gap; the sensor 10 with the limiters 11 and 12 mounted on the 1-spring-loaded end of the rod 7, designed to monitor the level of the material in the hopper 1.

The feeder works as follows.

At the initial moment in the absence of material, the discharge target of the circular opening of the feeder is closed with a cone 6. When the material is fed into the hopper 1, the material first passes through the intermediate nozzle 5 and falls onto the surface of the locking cone 6. The material accumulates in the cavity

nozzle 5 of the hopper 1. With a certain accumulation of material in the hopper 1, its weight exerts pressure on the cone 6, which through the pull 7 acts on the spring 8, squeezing it down, thereby forming a discharge gap. Through the resulting schie. 1, the material slides along the surface of the cone 6 and is discharged by a uniform layer over the entire crushing ring of the crusher. The passage of excess material into the fragmentation zone is limited by the optimal formation of the gap size by the effect of the elasticity of the spring 8.

The material overload in the hopper 1 is monitored by a level limiter 11, and a reduction in the material supply or its absence is controlled by a level 12 limiter by means of a sensor 10.

The proposed design of the feeder ensures an even distribution and supply of the initial crushing product over the entire circumference of the fraction-sh loading slot and its cone crusher zone.

The economic effect from the introduction of one device will be 2.3 thousand rubles. in year.

about

((R icch-, 11th c. G, oajx p.

Editor I. Papp Ge.hrel I, VeresK (; rek-: Ch) r I

Order 2LM2; t) Circulation tH2Subscription

VNIIPI State Committee (HSR

on pzo5rs beings and discoveries

113035, Moscow, Zh-35, Rau1pskg pub., D. 4/5

Phi. PPP "Patent, Uzhgorod, y. i. Project, 4

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Claims (1)

A GRAVITY FEEDER OF BULK MATERIALS is predominantly for a cone crusher of fine crushing, containing a hopper located above the crushing chamber with a vertical discharge pipe and located under the pipe mounted on the cross by means of an elastic suspension, a shut-off valve in the form of a straight cone and a valve position sensor, characterized in that, for the purpose of simplifying the design and improving reliability, the elastic suspension is made in the form of a vertical rod, one end connected to the top of the straight cone, and the other opera mouth on the cross by means of a compression spring, while the valve position sensor is mounted on the spring-loaded end of the rod. SU „„ 1228896 FIG. 1