Granular excreta treating material, production method thereof, and extrusion type compressive granulating apparatus thereof

Abstract

Provided are a granular excreta treating material which has high absorbing property and is expected to exhibit disintegrability and aggregativeness, a production method thereof, and an extrusion type compressive granulating apparatus thereof. The granular excreta treating material has absorbing property and is formed by extruding and granulating a raw material via a granulating hole, wherein the granulating hole includes a small diameter hole and a large diameter hole which are continuous to each other in the axial direction of the hole, in which the small diameter hole forms a compression zone, and the large diameter hole forms a non-compression zone, and in which the raw material is compressed at the compression zone, swells at the non-compression zone, and is cut into granules by a cutting blade rotating along an outlet surface of the non-compression zone.

1 . A granular excreta treating material having absorbing property and formed by extruding and granulating a raw material via a granulating hole,
 wherein the granulating hole includes a small diameter hole and a large diameter hole which are continuous to each other in the axial direction of the hole,   the small diameter hole forms a compression zone, and the large diameter hole forms a non-compression zone, and   the raw material is compressed at the compression zone, swells at the non-compression zone, and is cut into granules by a cutting blade rotating along an outlet surface of the non-compression zone.   
     
     
         2 . A granular excreta treating material that has absorbing property and is formed by extruding and granulating a raw material via a granulating hole,
 wherein a cutting blade is provided with a gap from an outlet surface side of the granulating hole,   the granulating hole forms a compression zone, and the gap forms a non-compression zone, and   the raw material is compressed at the compression zone, swells at the non-compression zone, and is cut into granules by a cutting blade rotating along an outlet surface of the non-compression zone.   
     
     
         3 . A method of producing a granular excreta treating material by press-inserting a raw material from an inlet of a granulating hole of an extrusion type compressive granulating apparatus and cutting the raw material extruded from an outlet of the granulating hole into granules by a cutting blade, the method comprising:
 forming the granulating hole of which the front stage side forms a compression zone and the rear stage side forms a non-compression zone continuous to the compression zone;   installing the cutting blade in a manner such that the cutting blade rotates along an outlet surface of the non-compression zone;   compressing the raw material at the compression zone;   allowing the raw material to swell at the non-compression zone; and   causing the cutting blade to rotate along the outlet surface of the non-compression zone to cut the raw material into granules.   
     
     
         4 . A method of producing a granular excreta treating material by press-inserting a raw material from an inlet of a granulating hole of an extrusion type compressive granulating apparatus and cutting the raw material extruded from an outlet of the granulating hole into granules by a cutting blade, the method comprising:
 installing the cutting blade with a gap from an outlet surface side of the granulating hole;   forming a compression zone in the granulating hole;   forming a non-compression zone in the gap;   compressing the raw material at the compression zone;   allowing the raw material to swell at the non-compression zone; and   causing the cutting blade to rotate along the outlet surface of the non-compression zone to cut the raw material into granules.   
     
     
         5 . An extrusion type compressive granulating apparatus for a granular excreta treating material, comprising:
 a die table which has a plurality of granulating holes passing through the die table;   a pressurizing rotation wheel which press-inserts a raw material into each granulating hole of the die table into granules; and   a cutting blade which cuts the raw material extruded from an outlet of each granulating hole of the die table into granules,   wherein the front stage side of the granulating hole forms a compression zone and the rear stage side thereof forms a non-compression zone continuous to the compression zone,   the cutting blade is provided to rotate along an outlet surface of the non-compression zone,   the raw material is compressed at the compression zone,   the raw material swells at the non-compression zone, and   the cutting blade rotates along the outlet surface of the non-compression zone to cut the raw material into granules.   
     
     
         6 . An extrusion type compressive granulating apparatus for a granular excreta treating material, comprising:
 a die table which has a plurality of granulating holes passing through the die table;   a pressurizing rotation wheel which press-inserts a raw material into each granulating hole of the die table; and   a cutting blade which cuts the raw material extruded from an outlet of each granulating hole of the die table into granules,   wherein the cutting blade is provided with a gap from an outlet surface side of the granulating hole,   a compression zone is formed in the granulating hole,   a non-compression zone is formed in the gap,   the raw material is compressed at the compression zone,   the raw material swells at the non-compression zone, and   the cutting blade rotates along the outlet surface of the non-compression zone to cut the raw material into granules.