DE1607442A1 - Crusher - Google Patents

Description

Crusher

The invention relates to a crusher with an inclined at an angle to the horizontal Crushing gap, the. from a fixed upper and a movable lower breaker link is limited and with the smallest gap width a wedge-shaped narrowing inlet zone as well as an adjoining second zone with a constant passage cross-section for the crushed material

Crushers of this type are known in the form of cone and jaw crushers. You work as a so-called Breaker, d. to «the tumbling or swinging movement of the lower movable breaker link takes place at such a high frequency and speed, that the crushed material falls vertically through the inclined crushing gap during each opening movement - and only during the subsequent closing movement of the lower frangible link thrown back by this approximately in a horizontal direction (and / or sliding diagonally downwards on it), i.e. in multiple changing directions crossed. The crushed material is loosened up in a veil and turned several times, so that in particular the cone crusher with a relatively high throughput delivers a sharp-edged, cubic grain of uniform size - this in particular through the formation of the second zone of the crushing gap mentioned at the beginning, in which each grain is broken up at least once

In the case of the known crushers of the type mentioned at the beginning, however, the discharge * well, often not the sharper ones that have recently been raised, especially in road construction Requirements that this discharge material - regardless of the type and the crystalline structure of the material to be shredded - practically free of platy, and must be stalky grain. "_...

The invention is based on the basic idea of eliminating this disadvantage by taking measures

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fix that cause the crushed material to accumulate in the lower part of the crushing gap, because the grains of the Crushed material pressed against each other and the splintery, stalky and platy grains are largely destroyed

According to the invention, a third zone is attached to the second zone of the crushing gap for this purpose Zone with initially larger and then smaller again for the crushed material and a fourth zone with a constant, but smaller passage cross-section as connected in the second zone.

The described measures are advantageous in cone crushers to realize that the crushing jacket and / or the crushing cone - so the replaceable Wear body he trained and for lining the breaking members serving breaking tools - in the area of the third zone with a ring provided over the circumference extending recess iat.

If such a recess _for ii in the crushing cone, that is provided in the lining of the lower oeweglichen power portion, so it is expedient to select the inclination of the crushing gap in the fourth zone is less than in the second zone. The easiest way to do this is to keep the angle of inclination of the breaking cone in the lower part of the recess mentioned unchanged in the fourth tooth.

The drawing shows the prior art on which the invention is based, as well as i these themselves in the form of several exemplary embodiments, shown schematically. : show in individual cases

Fig. 1 shows the shape and mutual position of the breaking tools in a known one Cone crusher in a vertical partial section at the point of the smallest

Gap width,. .

FIGS. 2 to 5 partial sections as in FIG. 1, but with four exemplary embodiments the invention,

"Fig. 6 shows a cone crusher with breaking tools corresponding to Fig. _2f in a vertical section, and · '

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Pig. 7 a hammer jaw crusher with crushing tools similar to Pig. 5, in a vertical section. / ^r

You the pig. 1 to 6 are the substantially conical envelope-shaped Breehspalt Crushing tools of the cone crusher with 1 and 2 that limit the top and bottom designated. The so-called Crushing jacket 1 represents the interchangeable closure body trained lining of the housing part J5 and the so-called »crushing cone 2 the corresponding trained lining of the movable support cone 4 represents «■

In the known embodiment according to FIG. 1, the Breehspalt consists of two zones Zl and Z2. In which the crushed material fed in from above is pre-broken or on a a certain grain size is broken down by the set narrowest gap width. in the The material to be crushed can still be grains with a flaky, stalky or platy shape appear. - "-. ■ - '"

In the embodiments according to FIGS. 2 to 5, on the other hand, the crushing gap consists of four zones Zl * Z2, ZJ and Z4 *. Zone Z J> has an initially larger and then smaller passage cross section for the crushed material, while the adjacent zones Z2 and 7h have constant passage cross-sections. The zone ZJ is formed in that either the crushing jacket 1 (Flg. 2 and 5) or the crushing cone 2 (Fig. 4) or both crushing tools 1 and 2 at the same time (Fig. 5 and 6) with "corresponding, ring-shaped over the ^ Circumferentially extending recesses 5. In the embodiment according to Fig. 4, the angle of inclination R of the zone Z4 is also greater than the angle of inclination OC of the zone Z2.

In the case of the impact jaw crusher according to FIG. 7, the crushing jaws 6 and 7 form the linings the stationary OehäuBeteils 8 or the breaking member oscillating about the axis 9 The crushing gap here also consists of the four zones Z1, Z2, Z> and Z4 and has a cross-section similar to that of the cone crusher according to FIG.

The mode of operation of the cone or beater jaw crusher shown in FIGS. 2 to J differs from that of the known cone crusher according to FIG. 1 in that the crushed material is accumulated in the zone ZJ after it has entered it

of the crushed material.

the grains '' are not only on the working surfaces of the crushing tools, but larger

partly also pressed against each other, whereby the grains still contained in it of

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splintery, stalky and platy shape are destroyed, so that the crushed material after further break-up in zone Z4, essentially only cubic ones Having grains.

Patent claims:

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Claims (2)

Patent a η s ρ r Ü c he » 1. Crusher with a crushing gap inclined at an angle to the horizontal, which is supported by a fixed upper and a movable lower breaker link is limited and with the smallest gap " te a wedge-shaped narrowing inlet zone and a subsequent second zone having a constant passage cross-section for the crushed material ^ characterized in that that at the second zone of the crushing gap (Z2) there is a third zone (Z>) with initially larger and then again smaller passage cross-section and then a fourth zone (Z4) with a constant but smaller passage cross-section as follows in the second zone ». . 2. Breaking tools designed as exchangeable wear bodies for removing the Crushing members of a cone crusher according to Claim 1, characterized in that the Crushing jacket (1) and / or the crushing cone (2) in the area of the third zone (ZjS) a ring-shaped recess (5) extending over the circumference is provided 5 · Crushing tools according to claim 2, characterized in that when only in the crushing cone (2) provided recess, the inclination of the crushing gap in the fourth zone (Z4) is less than in the second zone (Z2) (Fig. 4). 909832/07 7 5 L e e γ s e i t e