SU1726016A1 - Cone inertial crusher - Google Patents

Abstract

SUMMARY OF THE INVENTION: In a cone inertial crusher containing an outer cone 1 with a crosspiece 2, the head 6 of the inner cone 7 is made with channels 8, the outlets of which are directed to the grinding cavity 9. The inlets of the channels 8 are equipped with a fitting 5 connected to a swivel 3 placed inside the crosshead, through a flexible pipe 4. Through a pipe 10, water is supplied to the swivel 3, which, after leaving the channels 8, irrigates the material evenly in the grinding chamber. 1 il.

Description

The invention relates to devices for supplying a liquid to the crushing cavity of an inertial crusher during the process of crushing materials, can be used for regrinding in a wet process difficult to grind ore pellets coming from a self-grinding mill.

A cone crusher is known, comprising an outer and an inner cone with an unbalanced drive. The crusher is intended for dry crushing and cannot work with water supply, since it is not equipped with the means of its uniform feeding around the circumference of the grinding cavity,

A cone inertial crusher is also known, which includes an outer cone and an inner cone forming a crushing cavity with it, the head of which is located in the receiving funnel, as well as a pipeline for supplying water to the feed material.

A disadvantage of the known device is the uneven distribution of water throughout the volume of the crushed material placed in the cavity due to the fixed water supply system.

In addition, the placement of perforations above the outer cone, in the area of the receiving tank, creates conditions for pressing some of them with ore, which contributes to the additional irregularity of the water supply. For this reason, a number of sectors of the crushed material in the cavity remain dry. which leads to overgrinding of ore in them due to slow transportation. In the over-humid zones, there is undermixing due to excessively active evacuation of crushed ore. In general, a known device is characterized by reduced productivity and a tendency to over-grinding.

The purpose of the invention is to increase productivity by increasing the uniformity of the irrigation of the material.

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The goal is achieved by the fact that in a cone inertial crusher containing an outer cone and forming with it an internal cone with a crushing cavity, the head of which is located in the receiving funnel, as well as a pipeline for supplying water to the feed material, the head of the inner cone is made with channels, inlets which by means of a flexible supply pipe and a swivel are connected to a pipeline for supplying water, and the outlet openings of the channels are directed towards the crushing cavity.

The water supply channels are made in the head of the hydrogenating and rotating inner cone, which ensures uniform distribution of water around the circumference of the cavity and uniform wetting of its volume. In addition, the holes are not blocked, since the active vibration of the inner cone prevents it from being rolled over an uneven layer of material.

To ensure unimpeded water supply, the cone head is connected by a flexible pipe to a swivel located in the crosspiece of the funnel, into which water is supplied.

The drawing shows the proposed device, a longitudinal section.

The device contains an outer cone 1 with a beam 2, inside which is placed a swivel 3 connected by a flexible pipe 4 with a fitting 5 of the head 6 of the inner cone 7. The head 6 has channels 8, the outlet openings of which are directed to the grinding cavity 9. Water flows into the swivel through pipeline 10.

The device works as follows.

When the ore is fed into the crushing cavity 9 and with the gyratory oscillation of the internal cone 7, the latter receives a circular rotation due to the running in of the ore according to the principle of internal friction engagement. The cone 7 rotates with the flexible nozzle 4 and the swivel tube 3, through which water is supplied from the conduit 10 to the channels 8, and from them to the crushing cavity 9.

Due to the rotation of the cone 7, water is evenly distributed around the circumference of cavity 9 and the volume of ore flowing into it. This ensures that the crushing of the ore is uniform along the circumference and that the crushed product is evacuated uniformly along the segments of the crushing cavity. Overall, a 25% increase in productivity is achieved.

Claims (1)

Invention Formula Cone Inertia Crusher, containing an outer cone and forming with Him crushing cavity internal cone, the head of which is located in the receiving funnel, as well as a pipeline for supplying water to the feed material, characterized in that, in order to increase productivity by increasing the uniformity of the material irrigation, the head of the inner cone is made with channels, the inlets of which are connected to the water supply pipe by means of a flexible connection pipe and a swivel. and the outlets of the channels are directed; fractional cavity.