Apparatus and process for producing crushed product, crushed product and processed good
First Claim
1. An apparatus for producing a crushed product comprisinga stationary crushing disc provided in its central portion with a raw material entrance port and in its outer region on its underside with a crush face,a rotatable crushing disc disposed beneath the stationary crushing disc in opposition thereto so as to form a mill gap therebetween and provided, on its upper side, in its inner region with an abrader face, in its outer circumferential region with a fine-crush face and in its inner region with a plurality of rough-crush dispensing grooves extending from a central portion thereof to the fine-crush face,a driving shaft which is fixedly connected to the central portion of the rotatable crushing disc and extends through and above the stationary crushing disc,a power transmission means for transmitting a rotational power from a driving device to the driving shaft while preventing heat transfer,a mill gap adjusting means which supports the rotational crushing disc through the driving shaft and is operable to adjust the mill gap between the stationary and the rotatable crushing discs,a cooling means for cooling the stationary crushing disc and/or the rotatable crushing disc,a raw material supply path for supplying raw material to the raw material entrance port in the stationary crushing disc anda crushed product receiver for receiving the crushed product expelled out of the mill gap at the disc periphery.
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Accused Products
Abstract
A raw material is fed through a raw material supply channel into a raw material introduction part between a fixed grinding disc and a moving grinding disc. The moving grinding disc is provided on a drive shaft and the gap between the same and the fixed grinding disc is adjusted by means of a gap adjusting mechanism. Heat transfer from the drive unit is prevented while power is transmitted to the drive shaft to rotate the moving grinding disc. The raw material while being transferred through the coarse grinding distributing channel is coarsely ground and any raw material of low grindability is crushed by the crushing part, distributed to the microgrinding part and microground to thereby attain the production of ground matter.
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Citations
10 Claims
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1. An apparatus for producing a crushed product comprising
a stationary crushing disc provided in its central portion with a raw material entrance port and in its outer region on its underside with a crush face, a rotatable crushing disc disposed beneath the stationary crushing disc in opposition thereto so as to form a mill gap therebetween and provided, on its upper side, in its inner region with an abrader face, in its outer circumferential region with a fine-crush face and in its inner region with a plurality of rough-crush dispensing grooves extending from a central portion thereof to the fine-crush face, a driving shaft which is fixedly connected to the central portion of the rotatable crushing disc and extends through and above the stationary crushing disc, a power transmission means for transmitting a rotational power from a driving device to the driving shaft while preventing heat transfer, a mill gap adjusting means which supports the rotational crushing disc through the driving shaft and is operable to adjust the mill gap between the stationary and the rotatable crushing discs, a cooling means for cooling the stationary crushing disc and/or the rotatable crushing disc, a raw material supply path for supplying raw material to the raw material entrance port in the stationary crushing disc and a crushed product receiver for receiving the crushed product expelled out of the mill gap at the disc periphery.
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7. A process for producing a crushed product, comprising
supplying a raw material to be crushed via one or more raw material supply paths to a mill gap formed between a stationary crushing disc and a rotatable crushing disc, said stationary crushing disc being provided in its central portion with a raw material entrance port and in its outer region on its underside with a crush face, and said rotatable crushing disc being disposed beneath the stationary crushing disc in opposition thereto and provided on its upper side, in its inner region, with an abrader face, in its outer circumferential region, with a fine-crush face and, in its inner region, with a plurality of rough-crush dispensing grooves extending from the central portion to the fine-crush face, adjusting the mill gap between the stationary crushing disc and the rotatable crushing disc by means of a mill gap adjusting means which supports the rotatable crushing disc through a driving shaft, rotating the rotatable crushing disc by transmitting a rotational power from a driving device to the driving shaft while preventing heat transfer and cooling the stationary crushing disc and/or the rotatable crushing disc, effecting a rough crushing of the raw material while the raw material is caused to travel through the rough-crush dispensing grooves from the raw material entrance port and, at the same time, breaking down a hardly crushable raw material between the underside of the stationary disc and the abrader face of the rotatable crushing disc and dispensing the resulting roughly crushed mass to the mill gap between the crush faces from the rough-crush dispensing grooves to subject it to fine crushing and collecting the resulting crushed product expelled out of the mill gap between the stationary and the rotatable crushing discs at the disc periphery.
Specification