Grinding system for grinding a material to be ground, and method for grinding a material to be ground
A technology for grinding materials and coarse materials, which is applied in the grinding system for grinding materials to be ground and in the field of grinding materials to be ground, and can solve the problems of no longer realizing sufficient grinding of grinding materials and prolonging the grinding process.
Inactive Publication Date: 2017-08-29
THYSSENKRUPP IND SOLUTIONS AG +1
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Problems solved by technology
Said process fluctuations result in an overload of the grinding device, wherein sufficient comminution of the ground material is no longer achieved in the grinding device
This leads firstly to increased wear of the grinding device and secondly to the situation that insufficiently comminuted ground material is supplied to the grinding device again and significantly prolongs the grinding process
Method used
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[0036] figure 1 A grinding plant 10 is shown for comminuting brittle ground material such as limestone, clinker, dolomite or ore material. The grinding facility 10 includes a first grinding device 12 , a classifying device 14 and a second grinding device 16 .
[0037] exist figure 1 In the exemplary embodiment shown, the first grinding device 12 is a roller press with two counter-rotating grinding rolls 18a, 18b, which are figure 1 A pressing device, not shown in , exerts a grinding pressure of up to 250 MPa on said grinding rollers 18a, 18b, wherein a grinding gap is maintained between the grinding rollers 18a, 18b. The roller press further includes a feed shaft 20 disposed above the grinding rollers 18a and 18b. Feed shaft 20 includes a tubular upper portion and a funnel-shaped lower portion to direct the grinding material into the grinding nip between grinding rollers 18a and 18b. Furthermore, the roller press 12 comprises an outlet 38 for discharging the abrasive mater...
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The invention relates to a grinding system (10) for grinding a material to be ground, comprising at least one grinding device (12, 16) and a sifting device (14) connected to the at least one grinding device (12, 16) for sifting the ground material with a static sifter and a dynamic sifter, wherein the static sifter is arranged in such a way that it at least partially surrounds the dynamic sifter, wherein the sifting device (14) has at least one coarse material outlet (24) for releasing a coarse material having a coarse grain fraction, at least one grit outlet (26) for releasing a grit having a medium grain fraction, and at least one finished material outlet (28) for releasing a finished material having a fine grain fraction, wherein the grinding system has a control / regulation device for controlling / regulating at least one part of the flow of material to be ground to the at least one grinding device (12, 16). The invention also relates to a method for grinding a material to be ground, comprising at least the following steps: grinding the material to be ground in at least one grinding device (12, 16); sifting the ground material in a sifting device (14) into coarse material, grit and fine material, wherein the sifting device (14) has a static sifter and a dynamic sifter, wherein the static sifter is arranged in such a way that it at least partially surrounds the dynamic sifter, and wherein the flow of material to be ground to the at least one grinding device (12, 16) is controlled / regulated by means of a control / regulation device.
Description
technical field [0001] The present invention relates to a grinding installation for comminuting abrasive material and a method for comminuting abrasive material. Background technique [0002] It is known to comminute ground material such as limestone, dolomite, ore, clinker, slag or fly ash in a grinding plant comprising at least one grinding device and at least one screening machine. [0003] DE 10 2011 055 762 A1 discloses a grinding plant for comminuting ground material, which comprises a classifying plant with a static screen and a dynamic screen and with at least one grinding device. [0004] The milled material is usually supplied to a screening machine or milling unit. In the screening machine, the ground material is divided into a fine-grained fraction and a coarse-grained fraction, wherein the coarse-grained fraction is supplied to the grinding plant for comminution. After crushing, the ground material is reclassified in a screening machine, wherein the coarse gro...
Claims
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IPC IPC(8): B02C23/02B02C23/08B02C25/00
CPCB02C23/02B02C23/08B02C25/00B02C23/10B02C23/14B02C15/00B02C17/161
Inventor O·哈葛梅尔M·维尔切克
Owner THYSSENKRUPP IND SOLUTIONS AG