CS231396B1 - Crushing core for crushed crushed clay crushers - Google Patents

Abstract

The purpose of the invention is to reduce the energy requirements for the crushing process of blocky materials mined in surface quarries by suitable design of the functional parts of the rotors and modification of the shapes of individual rotor elements. The crusher core consists of a pair of parallel rotors, a left rotor and a right rotor, rotating against each other. The left shaft (3) of the left rotor (1) and the right shaft (4) of the right rotor (2) are fitted alternately and evenly with crushing discs (5) with an asymmetrical shape of the crushing tooth (6) and smooth sharp-edged discs (7). Opposite each crushing disc (5) of the left rotor (1) is a smooth sharp-edged disc (7) located on the right rotor (2) in the same plane perpendicular to the axes of the left rotor (1) and the right rotor (2), and opposite each crushing disc (5) of the right rotor (2) is a smooth sharp-edged disc (7) located on the left rotor (1) in the same plane perpendicular to the axes of the left rotor (1) and the right rotor (2).

Description

The invention relates to a crushing core for crushers of mined blocking clay-like material, e.g.

The prior art crushing cores for crushed cuboid crushers (eg overburdened pairs of rotors) between which the crushed material passes are based on a regular arrangement of crushing disks with a symmetrical shape of the crushing tooth · These disks are offset by half pitch on parallel shafts »In the crushing process, the crushed material enters between the blade edge of one rotor and the rotor hub of the counter-rotating rotor and the material is crushed due to different peripheral velocities of the crushing disk edge and hub * Essentially, the material is crushed · In the case of a larger piece of crushed material, it enters between a plurality of crushing disks of counter-rotating shafts and then the first phase of the crushing process by breaking a large piece of material into smaller ones, which in the second phase of the crushing process are further

The crushing process, when a piece of material is broken up by penetrating the sharp edge of the crushing disk of one rotor and crushed against the hub surface of the crushing disk of the other rotor, is very energy intensive · Another disadvantage is energy losses due to unsuitable crushing tooth geometry gripping properties of the crushing disc when pulling a piece of material between the rotors of the crushing core, which must be compensated either by moving the rotors apart, which means, due to greater distance, the maximum dimensions of the crushed grain output or kernels ·

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These drawbacks are solved by a crushing core for crushers of mined blocking clay-like material * eg overlaps consisting of a pair of parallel rotors * rotating against each other * whose essence is * that the rotors are alternately and evenly equipped with crushing disks with asymmetrical crushing tooth shape and smooth sharpened disks. The arrangement of the individual discs is such that, opposite to the crushing disc, one of the rotors of the crushing core is in the same plane perpendicular to the axes of the two rotors, a smooth sharp-edged disc is placed on the other rotor and vice versa.

The advantage of this crushing core is that when crushing a piece of material * eg a blanket, it gets between the cutting edge of the tooth of the crushing disc located on one rotor and the cutting edge of the smooth sharp-edged coil. of the second rotor, or between several blades of the crushing and smooth disks of both rotors and the material is destroyed by the penetration of these. It cuts into the material. In terms of energy, this process of breaking the material by crushing between the blades is more efficient. The asymmetrical shape of the crushing wheel tooth ensures optimum cutting conditions for the crushing tooth penetration into the piece of material until it is excited. In addition, the asymmetrical shape of the crushing tooth ensures better gripping properties of the crushing discs when pulling a piece of material between the counter rotating rotors. In addition to the aforementioned energy savings, the proposed crushing core is smaller in size, i.e., saving construction material, due to the improved grip properties of the asymmetric crushing jaw for the same size of input and output grain and the crushed amount of material.

An exemplary embodiment of a crushing core according to the invention is shown schematically in the accompanying drawings, in which Fig. 1 is a view of the crushing core rotors fitted with crushing disks with an asymmetrical crushing tooth shape in the direction of the crushed material inlet;

is a cross-section along the line A-A.

The left shaft 3 of the left rotor is alternately and evenly fitted with crushing disks J5 with an asymmetrical shape of the crushing tooth 6 and smooth sharp-edged wheels 2 · The right shaft 4 of the right rotor 2 is alternately and evenly equipped with a grinding wheel 7 and crushing disks 5 with an asymmetrical grinding shape. . The arrangement of the disks on the shafts of the two crushing core rotors 1, 2 is such that in one plane perpendicular to the axes of the left rotor 1 and the right rotor 2 is

231 396 - 3 - on the left shaft 3 of the left rotor 2 a crushing disk 5 is placed and in the same plane on the right shaft 4 of the right rotor 2 a smooth acute blade 2 · In another plane perpendicular to the axes of both rotors 1, 2 the value 10 is on the right shaft 4 of the right rotor 2 a grinding wheel 5 is placed and in the same plane on the left shaft 2 of the left rotor 2 a smooth acute blade 7 «Distance 2 of rotors 2» 2 and periodic value 10 is free of required output grain dimensions ·

When crushing piece 2 of material between rotors 2 # 2, it is gripped by crushing teeth 6 of asymmetric shape and pulled in between rotor blades 1, 2. The edges of the crushing discs 5 and smooth sharp-edged wheels 7 penetrate into the piece 8 of material until maximum deformation stress 11 ·

This crushing core can be used for all crushing devices of blocking clay-like material, eg overburden · In its modification, one rotor can be used / fitted only with crushing discs and the other with sharp-edged smooth discs.

Claims (1)

A crushing core for crushers of quarryed clay-like material, for example a blanket consisting of a pair of parallel rotors, a left rotor and a right rotor rotating against each other, characterized in that the left shaft (3) of the left rotor (1) and the right shaft (4) the right rotor (2) are fitted alternately and evenly with crushing discs (5) with an asymmetrical shape of the crushing tooth (6) and smooth sharp-edged discs (7), with each crushing disc (5) of the left rotor (1) The left-hand rotor (1) and the right-hand rotor (2) are positioned on the right-hand rotor (2) with a smooth sharp-edged blade (7) and opposite each crushing disk (5) of the right-hand rotor (2). ) and the right rotor (2) placed on the left rotor (1) smooth burr (7) ·