JPH0975759A - Method for preparing nonuniform material fragment produced during operation of hammer crusher or crushing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a preparation method of ununiform broken material pieces generating at the time of operating a hammer crusher or a press crusher by which a separation degree or a pulverizing degree suitable to the expected uses of individual material components of the broken material pieces is attained. SOLUTION: In a method for preparing crushed light-weight broken material pieces consisting of ununiform broken material pieces generating at the time of operation of the hammer crusher or press crusher, especially those consisting of plural material components such as metal, synthetic resin, ceramics and fabric and also showing fracture behaviors different in the material compositions, the broken material pieces are those separated and crushed in a drum mill having pulverizing bodies.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to non-uniform material fragments, especially metals, synthetic resins, ceramics and the like, which are produced during the operation of a hammer crusher or a crusher according to the general concept of claim 1. It relates to a method for the preparation of crushed lightweight debris, which consists of a plurality of material components such as textiles and which material components exhibit different fracture modes.

[0002]

2. Description of the Prior Art According to known methods, crushed lightweight debris is ground in a hammer or impact mill. As a result of this milling process, a product of significantly varying particle size or size, having a broad particle size or size distribution in which the material components at least partially overlap, can be used to reclaim any particle size of each of the material components for reuse. -Or obtained regardless of whether it should be present in size. During the long residence of the material in the mill, the material is partly severely comminuted such that no metal can be obtained by the separation of the other material constituents. On the other hand, the degree of separation of a particular material component-mixture during a short residence time is not so high that the material components of this mixture can be separated from one another.

Of course, cutter roll mills, which are subject to strong wear, have also been used on a trial basis.

[0004]

SUMMARY OF THE INVENTION The present invention relates to the operation of a hammer crusher or crusher in which a disintegration degree or degree of grind is achieved which is adapted to the intended use of the individual material components of the material debris. It is an object to create a method for preparing a non-uniform material debris that occurs in the above.

[0005]

The object of the invention is, according to the invention, that in the process of the invention, the material debris to be prepared is disintegrated or comminuted in a drum mill containing rod-shaped comminuting bodies. Will be solved by. The present invention provides, in particular, a material debris to be prepared in a drum mill containing rod-shaped grinds,
The combined advantage of being able to be disintegrated for the separation of its constituent parts without causing undesired further grinding of the individual material components via this disintegration is associated.

As a result of the disintegration of inhomogeneous material debris and due to the different grinding modes of the constituent parts of this material debris, different particle sizes or sizes of the material constituents result, which result in particle sizes in rational processing methods. Alternatively, the separation of material components by size can be performed. In this case, such a separation is carried out in particular in order to reduce the size of the equipment required for processing in a drum mill with rod-shaped crushing bodies. The incorporation of guide plates in the material discharge area of such a mill enhances the achievable classification effect.

If the grindability of the components of the material prepared for other uses is insufficient, each of these material components is reasonably, preferably passed at least once more in a drum mill equipped with rod-shaped grinding bodies. By doing so, it is crushed to a corresponding final size. Due to the influence of the distribution of the material constituents due to the process, depending on the disintegration or grinding mode, the type of material is changed and / or the size of the rod of the drum mill is changed.

A particularly beneficial effect of the process results is achieved by the fact that the type of material and / or the dimensions of the drum mill rods are varied depending on the metal preparation result.

Front Page Continuation (72) Inventor Zigmar Schiehuel Germany, 09599 Freiberg, Maxim-Gorky-Strasse, 42 (72) Inventor Petre Zervan, Germany 34125 Kassel, Osterbach Wake, 60

Claims (7)

[Claims] 1. An inhomogeneous material debris produced during the operation of a hammer crusher or a crusher, in particular a fracture mode consisting of a plurality of material components such as metals, synthetic resins, ceramics and textiles, the material components being different. A method for the preparation of crushed lightweight debris, characterized in that the material debris is disintegrated or comminuted in a drum mill having a comminuted body. 2. The method according to claim 1, wherein the crushed or crushed material debris in a drum mill equipped with rod-shaped crushed bodies is separated according to the particle size or size of its material components. 3. The method according to claim 2, wherein the separation of the material components is carried out according to particle size or size in a drum mill equipped with rod-shaped crushing bodies. 4. The method according to claim 2, wherein the one or more material components resulting from the separation are comminuted in another comminuting device to a final size specified by the intended use of the material composition. Method. 5. One or more of the material constituents resulting from the separation are at least once again passed through a drum mill equipped with rod-shaped grinding bodies to be ground to the final size specified by the intended use of the material constituents. The method according to claim 2 or claim 3. 6. The method according to claim 1, wherein the type of material and / or the size of the rod of the drum mill are changed depending on the crushing or crushing mode of the prepared material debris. 7. The method according to claim 1, wherein depending on the preparation state of the metal achieved by the drum mill, the type of material and / or the dimensions of the rods of the drum mill are changed.