JP2010004815A - Method for producing excreta treatment material for pet animal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing an excreta treatment material for pet animals, capable of producing granules with high water-absorbing ability using Hinoki(Japanese cypress)-based wood meal. <P>SOLUTION: The method comprises the first step of grinding Hinoki's processed residues, thinnings and wind-fallen trees in several portional stages into wood meal about 0.2-2.0 mm in particle size, the second step of adding a caking agent to a stock material consisting of the thus ground Hinoki wood meal followed by mixing under agitation to prepare a mixture, the third step of producing granules by extrusion molding of the mixture, and the fourth step of drying the granules at 50-200°C. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a method for producing a pet excreta treating material used when discarding feces and urine of small animals such as dogs and cats.

  As is well known, when a small animal pet such as a dog or a cat is raised in a general household, an excrement disposal material is used to dispose of manure.

  This kind of excrement disposal material is, for example, a place where it is used in general households, and it is desired that it is excellent in deodorizing power, antibacterial properties, incineration, and hygienic. The excrement processing material which shape | molded the done wood flour in the shape of a small lump is used.

  For example, an animal manure treatment material described in Japanese Patent Application Laid-Open No. 2001-204288 is formed into a porous granule mainly composed of wood flour mainly composed of straw and a material containing sodium carboxymethylcellulose. It is the composition which consists of grains.

  A method for producing the animal excrement disposal material will be described. First, timber made of thinned timber and saw sawdust is put into a grinder. When birch wood is put into a grinder, it is crushed to produce wood powder. Then, the generated wood powder of firewood is stored in a hopper. By storing the wood powder in the hopper in this way, moisture absorption is prevented and scattering by wind is prevented. Thereafter, the wood powder of the firewood is taken out from the hopper, and the wood powder of the firewood is mixed with the inorganic material, CMC, and other substances added as necessary in a mixer to form a mixed material. The mixed material and water are put into a kneader and kneaded to form a kneaded material.

The kneaded material formed by the kneader is put into an extruder, extruded into a pellet shape, that is, a cylindrical shape, and cut into a predetermined length to form a cylindrical granular body. The cylindrical granular material discharged from the extruder is obtained by extruding what is kneaded by adding water and contains moisture. The cylindrical granule formed by the extruder is put into a dryer to remove moisture. The drying time is set so that the cylindrical granular material has an appropriate water content. The dried cylindrical granular material is sent to the sieving machine 11 and subjected to a process of sorting into those having a predetermined diameter or larger and those having a predetermined diameter or smaller, and those having a predetermined diameter or larger are sent to the bagging machine, Perform bagging. The size of the granular material to be packed is 3.0 mm to 3.5 mm in diameter and 3 mm to 7 mm in length (height). In addition, the thing below a predetermined diameter is returned to the mixer 7 again.
JP 2001-204288 A

  Firewood has a higher oil content than other woods, and it is difficult to solidify into granules, and the granules formed by an extruder take time to penetrate into the interior even when wet with water, and water absorption is poor. Therefore, it has been desired to improve the excrement disposal material for pets of small animals.

  This invention is providing the manufacturing method of the excrement disposal material for pets which can manufacture the granule excellent in water absorption using the wood flour which made the chiefly rice cake.

According to the first aspect of the present invention, the processing residue of the firewood, the thinned wood, and the wind fallen tree are pulverized in several stages, and after the final pulverization process, pulverized to a wood powder of about 0.2 to 2.0 mm. A first step, a second step of creating a mixture by adding a binder to the raw material comprising the pulverized oak wood powder and stirring and mixing; and a step of producing a granule by extruding the mixture. 3 steps,
And a fourth step of drying the granular material at 50 to 200 ° C. A method for producing a pet excreta treating material.

  The invention according to claim 2 is the pet excreta treatment according to claim 1, wherein a fifth step of promoting the drying of the granular material by spraying the raw material with steam is provided in the previous step of the second step. It is a manufacturing method of material.

  ADVANTAGE OF THE INVENTION According to this invention, the excrement disposal material for pets excellent in water absorption can be manufactured using the wood flour mainly made from a cocoon.

  Hereinafter, embodiments of the present invention will be described in detail.

  The excrement disposal material for pets according to the present invention has a substantially cylindrical granular material, which is obtained by solidifying birch wood powder into a solid granular material. Carboxymethyl cellulose as a binder to birch wood powder (CMC) and a water-absorbing polymer are mixed, and a granular body is constituted in a state of being bonded to each other.

  In addition, the wood of the firewood, which is the main raw material 11, uses the processing residue of the firewood (oga powder and planar scraps) generated in the sawmill process, the thinned wood in the forest, or the windfall trees. These raw materials are stored in the raw material stock tank 12.

  Next, the manufacturing method of the pet excrement disposal material of this invention is demonstrated, referring the schematic of the manufacturing process of the pet excrement disposal material shown in FIG.

  First, the processing residue of firewood, the raw material 11 of firewood made by thinned wood or wind-fallen wood is pulverized in several stages in a first step 13 which is put into a pulverizer and crushes the wood of firewood. For example, it is pulverized to a certain size of 5 mm or less by primary pulverization, then pulverized to a small diameter of 3 mm or less by secondary pulverization, and then further reduced to a diameter of 0.5 mm or less by tertiary pulverization. It is pulverized and sent to the raw material quantitative supply device 14.

  Further, in the first step 13, the cocoon wood that is not sufficiently pulverized is put on the vibration sieve 12. And the wood of the firewood which could not pass is thrown into the grinder 11 again and ground to 1.5 mm or less. If the oak wood powder is 0.2 mm or less, the caking property is poor, and if it is 2.0 mm or more, it is too large to be granulated. it can. Therefore, the first step 13 for pulverizing the timber wood is not limited to three stages from primary pulverization to tertiary pulverization as long as it can be processed into birch wood powder of about 0.2 to 2.0 mm.

  The raw material fixed supply device 14 supplies a raw material made of oak wood powder of about 0.2 to 2.0 mm to the agitating mixer 16 for every fixed amount. The stirring mixer 16 is in charge of the second step of creating a mixture, and the proportion of CMC as a binder is 0.5 to 4% by weight and the water-absorbing polymer is 0.1 to 2% by weight with respect to 50 liters of raw material. The raw material, CMC and the water-absorbing polymer are mixed with stirring to make a mixture. By carrying out like this, the improvement of the caking property of the product grain shape | molded with the granulator mentioned later, solubility, and the water absorption performance of a water | moisture content is aimed at. The mixing ratio of CMC used as a binder was selected to be 0.5 to 4% by weight because it was difficult to bond when the mixing ratio of CMC was 0.5% by weight or less, and when it was 4% by weight or more. This is because it cannot be poured into a flush toilet, and the mixing ratio of the water-absorbing polymer was selected to be 0.1 to 2% by weight. This is because the efficiency is poor and if it is 2% by weight or more, there is no economic value.

  In the second step, the mixture obtained by stirring and mixing the raw material, the binder and the water-absorbing polymer by the stirring mixer 16 is supplied to the granulator 17 in charge of the third step. In the third step, the mixture supplied to the granulator 17 is extruded and granulated into, for example, a cylindrical granule having a particle size of 3 to 8 mm and a particle length of 2 to 15 mm.

  In the third step, the granulate granulated by the granulator 17 is supplied to the dryer 18 in charge of the fourth step. In the dryer 18, when the drying temperature is 50 ° C. or lower, the granular material has poor drying efficiency, and when the drying temperature is 200 ° C. or higher, moisture rapidly evaporates and the wood flour is heated. Drying is performed at a temperature of 50 ° C to 200 ° C.

  In addition, the granular material is mixed with a water-absorbing polymer, so that the granular material dissolves and disintegrates due to urinary water and has a function of chaining and solidifying due to a synergistic effect with the water-absorbing polymer during urination. become.

  The granular material dried by the dryer 18 is sent to a weighing machine 19 and weighed, and sent to a bagging machine 20 in a predetermined weight unit to be bagged to be a product.

  Thus, the commercialized granule mainly composed of koji has a bactericidal component called hinokitiol, and it aromas when in contact with moisture, deodorizing and antibacterial, and is hygienic. Since it is suitable for use, it can be used as it is in a flush toilet, and it can be incinerated, so it can be disposed of as household waste and is easy to handle.

  In the above description, the pulverized raw material is sent from the raw material supply device 14 to the second step as it is, and is mixed with CMC and the water-absorbing polymer by the stirring mixer 16 to create a mixture. Although the excrement disposal material for pets has been manufactured, it is preferable to provide a step of promoting the drying of the raw material in the previous step of the second step.

  That is, the closed mixing device 21 in charge of the fifth step is provided in the previous step of the second step in which the mixture is prepared by the stirring mixer 16. In this case, the raw material fixed supply device 14 supplies the raw material to the hermetic mixing device 21 in charge of the fifth step for every fixed amount. The closed mixer 21 mixes the raw material with steam (temperature 60 ° C.) for 30 seconds to promote the drying of the raw material.

  Granules granulated using the raw material subjected to the fifth step are supplied to the second step, and the raw material, CMC and water-absorbing polymer are stirred and mixed by the stirring mixer 16 as described above. The mixture is supplied to the third step, extruded by the granulator 17 and granulated into granules, supplied to the fourth step, and dried by the dryer 18.

It is the schematic which shows the manufacturing process of the excrement disposal material for pets concerning this invention.

Explanation of symbols

11 Raw material 12 Raw material stock tank 13 Stepwise grinding process
14 Raw Material Quantitative Supply Device 16 Agitation Mixer 17 Granulator 18 Dryer 19 Weighing Machine 20 Bagging Machine 21 Sealing Mixer

Claims (2)

A first step of crushing firewood processing residue, thinned wood and wind fallen tree in several stages, and crushing to a wood powder of about 0.2 to 2.0 mm after the final crushing process,
A second step of creating a mixture by adding a binder to the raw material comprising the pulverized oak wood powder and stirring and mixing;
A third step of extruding the mixture to produce a granule;
A fourth step of drying the granular material at 50 to 200 ° C .;
A method for producing a pet excreta treating material, comprising:   The manufacturing method of the excrement disposal material for pets of Claim 1 which provided the 5th process of spraying and mixing the said raw material and promoting the drying of the said granular material in the front process of the said 2nd process.

Images