JP2023010077A - Manufacturing method and manufacturing device for excrement disposal material - Google Patents

Abstract

A manufacturing method and manufacturing apparatus for an excrement disposal material capable of suppressing variations in hardness among a plurality of granular materials.
A manufacturing device is a device for manufacturing excrement disposal materials composed of a plurality of granular bodies, and includes a granulator (10). The granulator 10 is an extrusion granulator that forms granules constituting each granule by extruding and granulating a material to be granulated. The granulator 10 has a die 12 and rollers 14 . The die 12 is provided with a plurality of through holes 13 through which the material to be granulated passes. The rollers 14 press the material to be granulated into the through-holes 13 while revolving around the central axis A1 of the die 12 . The diameter of the roller 14 gradually increases as the distance from the center axis A1 of the die 12 increases.
[Selection drawing] Fig. 6

Description

The present invention relates to a method and apparatus for manufacturing excrement disposal material.

As a conventional excreta disposal material, there is one described in Patent Document 1, for example. The excrement disposal material described in the document is an excrement disposal material used for disposal of animal or human excrement, and is composed of a plurality of water-absorbing granules. Granular cores constituting each granule are formed using a granulator.

JP 2017-192320 A

The above-mentioned granulator includes a die provided with a plurality of through-holes for passing the material to be granulated (material constituting the core), and the material to be granulated while revolving around the central axis of the die. Extrusion granulators with rollers that push through holes are commonly used.

However, in such an extrusion granulator, the force with which the roller pushes the material to be granulated becomes weaker as the distance from the center axis of the die increases. That is, the strength of the force with which the roller pushes the material to be granulated differs depending on the position of the die (distance from the central axis). The difference in the forces is the difference in pressure applied to the material to be granulated passing through the through-holes. Conventionally, the pressure difference generated in this manner has been the cause of variations in hardness among a plurality of obtained granules.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and an apparatus for manufacturing an excrement disposal material that can reduce variations in hardness among a plurality of granules.

A method for producing an excrement treating material according to the present invention is a method for producing an excrement treating material comprising a plurality of granules. A granulation step of forming granules constituting each granule, wherein the extrusion granulator includes a die provided with a plurality of through-holes for passing the material to be granulated, and a central axis of the die. It has a roller that presses the material to be granulated into each of the through-holes while revolving around it, and the diameter of the roller gradually increases with distance from the central axis.

In this manufacturing method, an extrusion granulator with dies and rollers is used. The diameter of the roller gradually increases with increasing distance from the center axis of the die. When the strength of the force for pushing the material to be granulated into the through-hole is the same, the larger the diameter of the roller, the greater the pressure applied to the material to be granulated passing through the through-hole. Therefore, the diameter of the roller is relatively large at a position relatively far from the central axis (where the force to push the material to be granulated is relatively weak), and at a position relatively close to the central axis (where the force to push the material to be granulated is relatively weak). By making the diameter of the roller at the relatively strong position relatively small, variations in the hardness of the granules and thus of the granular material can be kept small.

Further, an apparatus for producing excrement treating materials according to the present invention is an apparatus for producing excrement treating materials composed of a plurality of granules, comprising a die provided with a plurality of through-holes for allowing the materials to be granulated to pass through, and Granulation for forming the granules by extruding and granulating the material to be granulated, having rollers for pushing the material to be granulated into the through holes while revolving around the central axis of the die. An extrusion granulator for forming an object, characterized in that the diameter of the rollers gradually increases away from the central axis.

This manufacturing apparatus is provided with an extrusion granulator having a die and rollers. The diameter of the roller gradually increases with increasing distance from the center axis of the die. When the strength of the force for pushing the material to be granulated into the through-hole is the same, the larger the diameter of the roller, the greater the pressure applied to the material to be granulated passing through the through-hole. Therefore, the diameter of the roller is relatively large at a position relatively far from the central axis (where the force to push the material to be granulated is relatively weak), and at a position relatively close to the central axis (where the force to push the material to be granulated is relatively weak). By making the diameter of the roller at the relatively strong position relatively small, variations in the hardness of the granules and thus of the granular material can be kept small.

According to the present invention, a manufacturing method and a manufacturing apparatus for excrement disposal materials capable of suppressing variations in hardness among a plurality of granules are realized.

1 is a schematic diagram showing one embodiment of an excrement disposal material according to the present invention. FIG. FIG. 3 is a schematic diagram showing a granule 30; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a configuration diagram showing an embodiment of an excrement disposal material manufacturing apparatus according to the present invention; 1 is a plan view showing a granulator 10; FIG. 4 is a bottom view showing the granulator 10. FIG. 5 is an end view along line VI-VI of FIG. 4; FIG. 4 is a plan view for explaining an effective area 12a of the dice 12; FIG. 3 is a diagram for explaining the structure of the coating machine 20; FIG. FIG. 2 is a diagram for explaining a granulation step in one embodiment of the method for producing excreta disposal materials according to the present invention. FIG. 2 is a diagram for explaining a granulation step in one embodiment of the method for producing excreta disposal materials according to the present invention. It is a side view which shows the example of a changed completely type of the roller 14. FIG. FIG. 11 is a side view showing another modification of the roller 14;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and overlapping descriptions are omitted.

FIG. 1 is a schematic diagram showing one embodiment of the excrement disposal material according to the present invention. The excrement disposal material 6 is an excrement disposal material used for disposal of excrement (particularly urine), and is composed of a plurality of granules 30 for disposal of excrement. The excrement disposal material 6 may be an animal excrement disposal material for disposal of animal excrement such as cats and dogs, or a human excrement disposal material for disposal of human excrement. good too. The excrement disposal material 6 is used, for example, in a state in which a plurality of granules 30 are laid in a box-shaped toilet.

In this embodiment, each granule 30 has water absorbency, and treats the excrement by absorbing it. The particle size of each granular material 30 is, for example, 5 mm or more and 20 mm or less. Here, the particle size of the granular material 30 is defined as the diameter of the smallest sphere that can contain the granular material 30 .

FIG. 2 is a schematic diagram showing the granules 30. As shown in FIG. The granular body 30 takes in urine and holds it inside the granular body 30 . The granular material 30 has a core portion 32 (granules) and a coating portion 34 . The core part 32 is granulated in a substantially cylindrical shape. The core 32 has a function of absorbing and retaining urine. The core 32 contains a water absorbent material. The core part 32 is mainly made of a water absorbing material. Here, the main material of the core portion 32 means one or more materials constituting the core portion 32 that occupy the largest weight ratio in the core portion 32 .

The core portion 32 may be made of only the water-absorbing material, or may be made of the water-absorbing material and another material. The absorbent material is preferably organic. For example, papers, used tea leaves, plastics, or soybean curd refuse can be used as organic water-absorbing materials. The core 32 may or may not contain an adhesive material. As adhesive materials, for example, water-absorbing polymers, starch, CMC (carboxymethylcellulose), PVA (polyvinyl alcohol), or dextrin can be used. Examples of water absorbing polymers include acrylic water absorbing polymers such as sodium polyacrylate.

Paper refers to materials mainly composed of pulp. Examples of paper include, in addition to ordinary paper, classified vinyl chloride wallpaper (paper obtained by classifying vinyl chloride wallpaper), fluff pulp, paper sludge, pulp sludge, and the like. As plastics, for example, classified paper diapers (plastic obtained by classifying paper diapers) may be used. The okara is preferably dried okara.

The covering portion 34 covers the core portion 32 . The covering portion 34 may cover the entire circumference of the core portion 32 or may cover only a part of the circumference of the core portion 32 . The covering portion 34 has a function of adhering the granules 30 that have absorbed urine during use to form a mass. The covering portion 34 is also mainly made of a water absorbing material. The definition of the main material of the covering portion 34 is the same as the definition of the main material of the core portion 32 . The water absorbing material contained in the covering portion 34 is also preferably organic. The covering portion 34 contains an adhesive material.

FIG. 3 is a configuration diagram showing an embodiment of an excrement disposal material manufacturing apparatus according to the present invention. The manufacturing apparatus 1 is an apparatus for manufacturing the excreta treating material 6 described above, and includes a granulator 10 and a coating machine 20 .

4 and 5 are a plan view and a bottom view, respectively, showing the granulator 10. FIG. 6 is an end view along the line VI--VI of FIG. 4. FIG. The granulator 10 is an extrusion granulator that forms granules (core portion 32) that constitute each granular body 30 by extruding and granulating a material to be granulated (material constituting core portion 32). be.

The granulator 10 has a die 12 , rollers 14 and a cutter 16 . The die 12 has a circular shape in plan view. The thickness of the die 12 is uniform. The die 12 is provided with a plurality of through holes 13 through which the material to be granulated passes. In the following description, "plurality of through-holes 13" refers to all through-holes 13 provided in the die 12 unless otherwise specified. The multiple through holes 13 have the same length. Also, the plurality of through holes 13 have the same diameter. The shape of the cross section of each through hole 13 (the cross section perpendicular to the thickness direction of the die 12) is circular. Further, the diameter of each through-hole 13 is constant in the thickness direction of the die 12 (vertical direction in FIG. 6). A plurality of through holes 13 are scattered over substantially the entire surface of the die 12 .

A roller 14 is provided on the surface side of the die 12 (the entrance side of the material to be granulated). The roller 14 has a columnar shape and its central axis extends in the radial direction of the die 12 . In this embodiment, a plurality (specifically, four) of rollers 14 are provided. One end of each roller 14 is connected to a rotating shaft 15 located at the center of the surface of the die 12 . A central axis of the rotating shaft 15 coincides with the central axis A1 of the die 12 . Here, the central axis A1 of the die 12 is an imaginary straight line passing through the center of the die 12 in plan view and extending in the thickness direction of the die 12 . The rotary shaft 15 is configured to rotate (rotate) around its central axis. Each roller 14 rotates (revolves) around the central axis A1 of the die 12 together with the rotating shaft 15 while rotating (revolving) around its central axis. In this manner, the rollers 14 press the material to be granulated into the through-holes 13 while revolving around the central axis A1. The roller 14 can pass over all through holes 13 provided in the die 12 .

The diameter of the roller 14 gradually increases as the distance from the center axis A1 of the die 12 increases. That is, the diameter of the roller 14 gradually increases toward the radially outer side of the die 12 . Therefore, the distance between the roller 14 and the die 12 is gradually reduced with increasing distance from the central axis A1. At any position of the roller 14 , the cross section of the roller 14 (the cross section perpendicular to the central axis of the roller 14 ) is circular, and the center of the cross section (circle) is on the central axis of the roller 14 .

The diameter of the roller 14 may gradually increase over the entire roller 14 (from the inner end 14a to the outer end 14b of the roller 14) in the radial direction of the die 12 (the direction of the central axis of the roller 14). may be progressively larger only in part of the FIG. 6 shows an example of the latter. However, the diameter of the roller 14 gradually increases over the entire portion overlapping the effective area 12a of the die 12 in plan view. Here, as shown in FIG. 7, the effective area 12a is a doughnut surrounded by a maximum circle C1 that does not include any through-holes 13 and a minimum circle C2 that includes all the through-holes 13 in plan view. area The centers of the circles C1 and C2 coincide with the center of the die 12. FIG. Circle C1 does not even include the portion of through hole 13 closest to the center. On the other hand, circle C2 includes the entire through-hole 13 farthest from the center.

The difference between the maximum value d1 (see FIG. 6) and the minimum value d2 of the diameter of the roller 14 is preferably 4 mm or more and 20 mm or less. The rate of increase in the diameter of the roller 14 is constant in the portion where the diameter of the roller 14 gradually increases. That portion of the roller 14 is therefore tapered.

A cutter 16 is provided on the back side of the die 12 (outlet side of the material to be granulated). The cutter 16 extends radially from the center of the back surface of the die 12 . The cutter 16 cuts the material to be granulated extruded from each through-hole 13 while rotating along the back surface of the die 12 . Specifically, the cutter 16 rotates about the center of the die 12 in a plane parallel to the back surface of the die 12 . Note that the cutter 16 is configured to be rotatable independently of the roller 14 described above. Cutter 16 can pass over all through holes 13 provided in die 12 .

Returning to FIG. 3, the coating machine 20 coats each granulated material (core part 32) formed by the granulator 10 with a powdery coating material (material constituting the coating part 34). . The coating machine 20 has a drum 22 (container) as shown in FIG. The drum 22 has a substantially cylindrical shape and is rotatably provided. Specifically, the drum 22 is rotatable around its central axis. The central axis of drum 22 is horizontal. A plurality of cores 32 formed by the granulator 10 are accommodated in the drum 22 . The coating machine 20 applies the coating material around each core 32 while rotating the drum 22 in which these cores 32 are accommodated.

Next, an embodiment of the method for manufacturing excrement disposal material according to the present invention will be described together with the operation of the manufacturing apparatus 1. FIG. This manufacturing method includes a granulation step and a coating step. The granulation step is a step of extrusion granulating the material to be granulated using the granulator 10 to form the core portion 32 . It is preferable that the material to be granulated is mainly composed of an organic substance. The material to be granulated may consist of only an organic substance, or may consist of a mixture of an organic substance and an inorganic substance. Prior to granulation, the material to be granulated is subjected to pretreatment such as pulverization, kneading, adding water, etc., as required.

In the granulation process, as shown in FIG. 9, the material to be granulated M1 supplied to the surface side of the die 12 is pushed into the through holes 13 by the rollers 14 rolling on the surface of the die 12 . The material to be granulated M<b>1 pushed into the through hole 13 is pushed out to the back side of the die 12 . When the material to be granulated M1 is extruded, the cutter 16 continues to rotate on the back side of the die 12 . Thereby, the material to be granulated M1 extruded from the through hole 13 is cut by the cutter 16 as shown in FIG. The portion cut in this manner becomes the granule (core portion 32).

The coating step is a step of coating each granule formed in the granulation step with a coating material. In the coating process, after the cores 32 formed in the granulation process are accommodated in the drum 22 (see FIG. 8), the drum 22 is rotated to apply the coating material around each core 32 . It is preferable that the main material of the coating material is an organic substance. The coating material may consist only of organic matter, or may consist of a mixture of organic matter and inorganic matter. Application of the coating material can be carried out, for example, by spraying or spraying. Thereby, the covering portion 34 is formed. Thereafter, post-treatments such as sieving and drying are performed as necessary. As described above, the excrement disposal material 6 composed of a plurality of granules 30 is obtained.

Effects of the present embodiment will be described. In this embodiment, a granulator 10 having a die 12 and rollers 14 is used. The diameter of the roller 14 gradually increases as the distance from the center axis A1 of the die 12 increases. When the strength of the force for pushing the material to be granulated into the through hole 13 is the same, the pressure applied to the material to be granulated passing through the through hole 13 increases as the diameter of the roller 14 increases. This is because the larger the diameter of the roller 14 is, the smaller the distance between the roller 14 and the die 12 is. Therefore, the diameter of the roller 14 is relatively large at a position relatively far from the central axis A1 (where the force to push the material to be granulated is relatively weak), and at a position relatively close to the central axis A1 (where the material to be granulated is pushed) By making the diameter of the roller 14 relatively small at the position where the pushing force is relatively strong, variations in the hardness of the granules (the core portion 32) and thus the grains 30 can be kept small. Therefore, a manufacturing method and a manufacturing apparatus for the excreta disposal material 6 capable of suppressing variations in hardness among the plurality of granules 30 are realized.

By the way, variations in hardness of the granules 30 lead to variations in quality such as water absorption performance. In this respect, in the present embodiment, by compensating for the pressure difference caused by the difference in the distance from the central axis A1 of the die 12 (the difference in the force with which the roller 14 pushes the material to be granulated), the hardness of the granular material 30 is increased. The variation in thickness is kept small. Thereby, the homogeneity of the whole excrement disposal material 6 can be improved.

From the viewpoint of sufficiently compensating for the pressure difference described above, the difference between the maximum value d1 and the minimum value d2 of the diameter of the roller 14 is preferably 4 mm or more. On the other hand, if the difference between the maximum value d1 and the minimum value d2 is too large, it can lead to overcompensation. That is, the pressure applied to the material to be granulated at a position far from the central axis A1 greatly reverses the pressure applied to the material to be granulated at a position close to the central axis A1, and as a result, variations in hardness among the granules 30 are kept small. It may become a situation that cannot be done. From this point of view, the difference between the maximum value d1 and the minimum value d2 of the diameter of the roller 14 is preferably 20 mm or less.

The rate of increase in the diameter of roller 14 is constant. As a result, the roller 14 whose diameter gradually increases with distance from the central axis A1 of the die 12 can be realized with a simple configuration. The rate of increase is adjusted so that the pressure applied to the material to be granulated is as uniform as possible regardless of the distance from the central axis A1.

Incidentally, the greater the length of the through-holes 13, the higher the pressure applied to the material to be granulated. Therefore, if the lengths of the plurality of through-holes 13 are not constant, the difference in length also affects the pressure difference during granulation (the pressure applied to the material to be granulated passing through the relatively small through-holes 13). , the pressure applied to the material to be granulated passing through the relatively large through-hole 13). In this regard, in this embodiment, the plurality of through holes 13 have the same length. In this case, since the length of the through-hole 13 does not affect the pressure difference during granulation, the pressure difference can be easily controlled. That is, since the diameter of the roller 14 is the factor that affects the pressure difference, the pressure difference can be more easily compensated than when both the length of the through-hole 13 and the diameter of the roller 14 are factors. can be done.

The plurality of through holes 13 have diameters equal to each other. In this case, a plurality of granules 30 having diameters equal to each other are obtained. Thereby, the homogeneity of the whole excrement disposal material 6 can be further improved.

Each granular body 30 has water absorbency, and treats the excrement by absorbing it. In this case, by confining the excrement inside the granules 30, it is possible to suppress the bad smell generated from the excrement from drifting around.

When the material to be granulated is mainly composed of organic matter, it is advantageous to obtain the granules 30 suitable for incineration disposal. If the coating material is also mainly composed of organic matter, it is more advantageous to obtain the granular material 30 suitable for incineration disposal. If the granules 30 are suitable for incineration disposal in this manner, the used excrement disposal material 6 can be discarded as combustible waste, which improves convenience for the user.

The core portion 32 is covered with a covering material (covering portion 34) containing an adhesive material. As a result, the granules 30 that have absorbed the excrement are adhered to each other, and a mass of a plurality of used granules 30 can be formed. By forming lumps of the granules 30 in this way, the used granules 30 can be selectively removed from the excrement disposal material 6 in which the unused granules 30 and the used granules 30 are mixed. easy to remove.

During coating, the drum 22 in which the cores 32 are housed is rotated while coating the cores 32 with the coating material. Thereby, the coating material can be uniformly adhered to the entire periphery of each core portion 32 .

The present invention is not limited to the above embodiments, and various modifications are possible. In the above embodiment, the case where the diameter of the roller 14 gradually increases over the entire portion of the die 12 that overlaps the effective area 12a is exemplified as the distance from the central axis A1 increases. However, the diameter of the roller 14 may gradually increase as the distance from the central axis A1 increases only in part of the above portion. In that case, the diameter of the roller 14 in the remainder may be uniform or non-uniform.

In the above embodiment, the case where the increase rate of the diameter of the roller 14 is constant is exemplified. However, the rate of increase may not be constant, as shown in FIGS. 11 and 12, for example. In FIG. 11, the rate of increase in the diameter of the roller 14 gradually increases with increasing distance from the central axis A1. In FIG. 12, the rate of increase in the diameter of the roller 14 gradually decreases with increasing distance from the central axis A1.

In the above embodiment, the case where the cross-sectional shape of the through-hole 13 is circular is exemplified. However, the cross-sectional shape of the through hole 13 is arbitrary, and may be oval, polygonal, or the like, for example. When the cross-sectional shape of through-hole 13 is not circular, the diameter of through-hole 13 is defined as the diameter of the smallest circle that can enclose the cross section.

In the above embodiment, the case where the cutter 16 is provided in the granulator 10 is exemplified. However, the granulator 10 may not be provided with the cutter 16 . In that case, the material to be granulated extruded from each through-hole 13 may be cut by a known means other than the cutter 16 .

In the above embodiment, the case where the granular material 30 has a multi-layer structure (two-layer structure) composed of the core portion 32 and the covering portion 34 is exemplified. However, providing the covering portion 34 is not essential. That is, the granules 30 may have a single-layer structure consisting of only the core portion 32 . In that case, the core 32 preferably contains an adhesive material. If the coating section 34 is not provided, the coating machine 20 is unnecessary and the coating process is not performed.

In the above embodiment, the granules 30 that treat excrement by absorbing it are exemplified. However, the granules 30 may be hydrophobic and treat the excrement by allowing the excrement to pass therethrough. When such hydrophobic granules 30 are used, excrement passes through the gaps between the granules 30 . In this case, by guiding the excrement to the lower part of the toilet, it is possible to suppress the bad smell generated from the excrement from leaking out from the upper part of the toilet.

1 manufacturing device 6 excrement treatment material 10 granulator (extrusion granulator)
12 Die 12a Effective area 13 Through hole 14 Roller 14a Inner end 14b Outer end 15 Rotating shaft 16 Cutter 20 Coating machine 22 Drum (container)
30 granules 32 core (granules)
34 covering part A1 central axis

Claims (22)

A method for producing an excrement disposal material comprising a plurality of granules, comprising:
A granulation step of forming granules constituting each of the granules by extrusion granulating the material to be granulated using an extrusion granulator,
The extrusion granulator includes a die provided with a plurality of through-holes for allowing the material to be granulated to pass through, and a roller that revolves around the central axis of the die and pushes the material to be granulated into each of the through-holes. has
A method for producing an excrement disposal material, wherein the diameter of the roller gradually increases with increasing distance from the central axis. In the method for manufacturing the excrement disposal material according to claim 1,
A method for producing an excrement disposal material, wherein the difference between the maximum and minimum diameters of the rollers is 4 mm or more. In the method for manufacturing the excrement disposal material according to claim 2,
A method for producing an excrement disposal material, wherein the difference between the maximum and minimum diameters of the rollers is 20 mm or less. In the method for producing an excrement disposal material according to any one of claims 1 to 3,
A method for producing an excrement disposal material, wherein the rate of increase in the diameter of the roller is constant. In the method for producing an excrement disposal material according to any one of claims 1 to 4,
The method of manufacturing an excrement disposal material, wherein the plurality of through-holes have the same length. In the method for producing an excrement disposal material according to any one of claims 1 to 5,
The method of manufacturing an excrement disposal material, wherein the plurality of through-holes have the same diameter. In the method for producing an excrement disposal material according to any one of claims 1 to 6,
A method for producing an excrement disposal material in which the material to be granulated is mainly composed of an organic substance. In the method for manufacturing an excrement disposal material according to any one of claims 1 to 7,
Each of the granules has a water-absorbing property, and the manufacturing method of the excreta disposal material for treating the excrement by absorbing the excrement. In the method for producing the excrement disposal material according to claim 8,
A method for producing an excrement disposal material, comprising a coating step of coating the granules formed in the granulation step with a coating material. In the method for producing the excrement disposal material according to claim 9,
In the coating step, a container containing the granules formed in the granulation step is rotated while the coating material is adhered around the granules. In the method for producing the excrement disposal material according to claim 9 or 10,
A method for producing an excrement disposal material, wherein the coating material is mainly composed of an organic substance. A device for manufacturing an excrement disposal material composed of a plurality of granules,
A die provided with a plurality of through-holes for allowing the material to be granulated to pass through, and a roller for pushing the material to be granulated into each of the through-holes while revolving around the central axis of the die, wherein the granulated material is An extrusion granulator that forms granules that make up each of the granules by extrusion granulating the material,
The apparatus for producing excrement disposal material, wherein the diameter of the roller gradually increases with increasing distance from the central axis. In the excreta disposal material manufacturing apparatus according to claim 12,
The apparatus for producing excrement disposal materials, wherein the difference between the maximum and minimum diameters of the rollers is 4 mm or more. In the excrement disposal material manufacturing apparatus according to claim 13,
The apparatus for producing excrement disposal material, wherein the difference between the maximum and minimum diameters of the rollers is 20 mm or less. In the excreta disposal material manufacturing apparatus according to any one of claims 12 to 14,
The apparatus for manufacturing excrement disposal material, wherein the diameter increase rate of the roller is constant. In the excreta disposal material manufacturing apparatus according to any one of claims 12 to 15,
The excrement disposal material manufacturing apparatus, wherein the plurality of through-holes have the same length. In the excreta disposal material manufacturing apparatus according to any one of claims 12 to 16,
The excrement disposal material manufacturing apparatus, wherein the plurality of through-holes have the same diameter. In the excreta disposal material manufacturing apparatus according to any one of claims 12 to 17,
The material to be granulated is an apparatus for manufacturing an excrement disposal material containing an organic substance as a main material. In the excreta disposal material manufacturing apparatus according to any one of claims 12 to 18,
Each of the granules has a water-absorbing property and absorbs the excrement to treat the excrement. In the excreta disposal material manufacturing apparatus according to claim 19,
An excreta treating material manufacturing apparatus comprising a coating machine for coating the granules formed by the extrusion granulator with a coating material. In the excrement disposal material manufacturing apparatus according to claim 20,
The coating machine has a container for containing the granules formed by the extrusion granulator, and rotates the container containing the granules to coat the granules around the granules. Equipment for manufacturing excrement disposal material that adheres materials. In the excreta disposal material manufacturing apparatus according to claim 20 or 21,
The apparatus for manufacturing an excrement treatment material in which the coating material is mainly composed of an organic matter.

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