SU706111A1 - Jaw breaker - Google Patents

Description

(54) JAW CRUSHER

one

The invention relates to the field of crushing and grinding of various rocks, ores and materials, namely, jaw crushers of vibration-impact action, and can be used in the mining, chemical, construction and other industries.

Known sh, eka crusher, containing body with side walls, fractional sh, necks with self-synchronizing vibration exciters, crushing chamber with loading hole and exit slit, elastic elements 1,

This crusher is closest to the invention by technical sush.nosti and the achieved result.

A disadvantage of the known crusher is that the increase in the degree of grinding of the crushed material, which is necessary in a number of cases, or, in particular, the restriction of the size of particles of large fractions, the product of crushing, requires the use of cumbersome conjugate equipment and additional production areas and capital investments.

The purpose of the invention is to increase the degree of grinding of the crushed material.

The goal is achieved by the fact that in each of the side walls outside the chamber a vertical gutter is mounted with the lower receiving and upper outlets, and under the exit slit a perforated bottom attached to the body is mounted so that the receiving windows of the gutters communicate with the cavity between the bottom and the exit slit, and exhaust - with a loading opening of the camera.

In this design, compact | 1O crushers combine the means and functions of comminution, screening, and vertical transportation with the return of the product to the chamber for regrinding.

five

FIG. 1 shows a crusher, side view; in fig. 2 is the same, section A-A in FIG. one.

Each of the two crushing cheeks 1 of the crusher is suspended by elastic elements 2 to the housing 3 and carries a vibration exciter with unbalance 4 driven through the coupling 5 during rotation from the engine 6. The crushing cheeks form between themselves a crushing chamber with a loading opening at the top, an exit slit below, and the side stakes that make up the hull of the hull and carrying the side armor lining. A vertical j chute 7 (with lower receiving and upper outlet ports) is mounted in each of the side walls of the casing of the chamber, which is a means of vertical vibratory displacement of crushed material particles from the bottom, from the gap, up to the charging opening of the crusher chamber.

Under the outlet chamber, a perforated bottom 8 is attached to the crusher body in the form of, for example, a gable grille. The lower part of the body is made in the form of discharge chute 9.,

The upper outlets of the vertically vibrating transport chutes are mated by means of the chutes 10 to the receiving hopper 11 of the housing, thus communicating directly with the feed opening of the crusher chamber, while the lower windows of the chutes enter the cavity between the bottom and the slot.

The crusher is wiped with its body by means of vibration-isolating elastic elements jj 12 on a supporting base 13.

In the process of working, the shotguns. The unbalances brought into rotation by the engine develop centrifugal forces, shown in fig. 1, with unbalances together with the arrows of the trajectories, they do not rotate. Antiphase vibrations of the cheeks are ensured by the effect of self-synchronization of vibration exciters. The horizontal components of their forces drive fe t oscillations on the elastic elements 2, due to which j

There is grinding material inter-.

doe | MIGA helicopters are driven into vertical cabins; the casing and the crusher as a whole on vibration isolator; 12.

The material coming from the funnel 11 into the chamber is crushed between the cheeks and poured from under the slit onto the grill 8, which allows fine fractions to be discharged through the chute 9. The same fraction under the influence of vibration and pressure of the layer in the cavity between the grill and the slit moves inside the grooves upwards (according to the known effect of vibration displacement in a pipe with a support) and is reunited through trays 10 with the initial load.

Thus, in the crusher, a closed grinding cycle is carried out, which allows, without the use of additional aggregates, areas and means, to achieve a relative increase in the degree of grinding of the crushed material, and in a number of cases - process efficiency and product quality.

Claims (1)

 Invention Formula A jaw crusher containing a body with side walls, crushing cheeks with self-synchronizing vibro-exciters, a crushing measure with a loading opening and an exit slit, elastic elements, in order to increase the degree of crushing of the material to be crushed, in each of the side walls, a vertical gutter with a BOTTOM receiving and upper outlet ports and, under the exit slit, a perforated bottom attached to the housing is mounted so that the receiving windows of the gutters communicate with a cavity between impoverished and output-gap and the exhaust - with feeding hole. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 328932, cl. B 02 C 1/02, 1970.