JP2014103864A - Excrement treatment material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an excrement treatment material suitable for incineration.SOLUTION: An excrement treatment material 1 is an excrement treatment material for treating excrement, and has a granular core part 10 (granular part) molded in a granular shape. The granular core part 10 has a high-order heat value of 25 MJ/kg or more, a moisture content mass fraction of 5% or less, an ash content mass fraction of 10% or less, and a total chlorine content mass fraction of 2% or less.

Description

  The present invention relates to an excrement disposal material for treating excrement of humans or animals.

As a conventional excrement processing material, there exists a thing described in patent document 1, for example. The excrement disposal material described in this document is an animal excrement disposal material, which is a granulated product containing 65 to 80% by weight of vegetable powder containing kenaf powder and 5 to 30% by weight of bentonite. Become.
JP 2010-148444 A

  Since the excrement disposal material contains combustible vegetable powder as a main component, it can be incinerated as a combustible material. Since the excreta treating material that can be incinerated can be disposed as combustible waste after use, it is highly convenient for the user. However, conventional excrement disposal materials have room for improvement in terms of suitability for incineration.

  This invention is made | formed in view of the said subject, and aims at providing the excrement disposal material suitable for incineration disposal.

  An excrement disposal material according to the present invention is an excrement disposal material for treating excrement, and includes a granular part formed into a granular shape, and the granular part has a high calorific value of 25 MJ / kg or more, and a moisture mass. The fraction is 5% or less, the ash mass fraction is 10% or less, and the total chlorine fraction is 2% or less (preferably 0.6% or less, more preferably 0.3% or less). To do.

  In this excrement disposal material, the granular portion has a high heating value, a moisture mass fraction, an ash mass fraction, and a total chlorine mass fraction equivalent to those of the solidified fuel. For this reason, the excrement disposal material which is not only excellent in combustibility but also has a small amount of ash remaining after incineration and hardly generates chlorine gas at the time of incineration is obtained. Moreover, according to this excrement disposal material, the discharge amount of carbon dioxide at the time of incineration can be reduced.

  According to the present invention, an excrement disposal material suitable for incineration disposal is realized.

It is a schematic diagram which shows one Embodiment of the excrement disposal material by this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[Constitution]

FIG. 1 is a schematic view showing an embodiment of the excrement disposal material according to the present invention. The excrement disposal material 1 is for treating excrement of pets such as cats and dogs, and includes a granular core part 10 (granular part) and a covering layer part 20.
<Granular core 10>

  The granular core 10 has a high heating value of 25 MJ / kg or more (preferably 33 MJ / kg or more), a moisture mass fraction of 5% or less (preferably 3% or less), and an ash mass fraction of 10% or less (preferably 5% or less) and the total chlorine content mass fraction is 2% or less (preferably 0.6% or less, more preferably 0.3% or less).

  The higher heating value, moisture mass fraction, ash mass fraction, and total chlorine mass fraction are values measured according to JIS standards Z7302-2, Z7302-3, Z7302-4, and Z7302-6, respectively.

  The granular core 10 is formed into a granular shape. However, the granular core part 10 should just be formed in the shape of a small lump, and does not need to be a perfect spherical shape. Examples of the shape of the granular core 10 include a columnar body (elongated shape) and a flat shape. The granular core 10 contains, for example, paper, plastic, a sanitary material classified product containing plastic, or okara as a material. The granular core part 10 may further contain wood waste, fiber waste, rubber waste, deodorant material, antibacterial material, or coloring material. As the coloring material, for example, a pigment or a dye can be used.

  Any kind of paper can be used as long as it is made of pulp. Various waste materials can be used as well as virgin pulp. For example, waste paper waste, sanitary paper waste, toilet paper waste, tissue paper waste, toilet paper waste, dust paper waste, paper cotton waste, paper towel waste, toilet seat waste, newspaper waste, magazine waste, buff powder (mainly in printing companies, Fine paper powder generated during bookbinding cutting and scraping), mechanical pulp waste, chemical pulp waste, titanium paper waste, semi-chemical pulp waste, cotton pulp waste, wood pulp waste, waste paper pulp pulverized product, fluff pulp, Water-absorbing fiber waste, non-woven fabric waste, paper dust generated during non-woven fabric manufacture, paper dust generated during the paper making process, paper dust generated during sanitary material manufacture, waste laminate paper, laminated paper printing waste, laminated paper scraps, cardboard Waste, waste paper (trim loss generated by sanitary materials manufacturers, paper waste generated by paper manufacturers, etc.), wrapping paper, paperboard, used Marks can be used punch waste.

  Plastics are solid materials of synthetic polymer compounds (polypropylene, vinyl chloride, polychlorinated biphenyls, polystyrene, polyacetal, polycarbonate, polyethylene, polyamide, polyethylene terephthalate, vinylidene chloride, acrylic resin, polyurethane (urethane foam), biodegradable plastics. Etc.) as long as they are of any type. Various waste materials may be used as plastics. For example, waste plastics, waste polyurethane, waste polystyrene (including foamed polystyrene), waste agricultural film, scraps of various synthetic resin-based packaging materials, waste photo films, waste plastic containers, wire coating scraps, lining scraps, waste polymers , Paint residue, adhesive residue, waste bakeland (printed substrate, etc.) can be used.

  Examples of the sanitary material classification products containing plastic include separation products rich in plastics of waste materials from excrement disposal materials, and separations rich in plastics of waste materials from disposable diapers (such as the exterior of non-standard paper diapers produced by sanitary materials manufacturers). Products, sanitary napkin waste plastic rich separation, milk pad waste plastic rich separation, sweat pad waste plastic rich separation, incontinence pad waste plastic rich separation, animal sheets waste plastic Separation products rich in plastics, separation products in bedding sheets waste plastics, etc., separation products rich in mask waste plastics, separation products in eye mask waste plastics, separation products in seat head cover waste plastics, pillow covers Using waste plastic-rich separations Door can be. In addition, vinyl chloride wallpaper waste materials and synthetic resin fiber waste materials can also be used.

  Wood waste includes various types of waste wood (waste wood for structures, waste wood generated in the manufacture of wooden products, wooden furniture, wooden pallets, wood waste, sawdust, bark, packing material waste, board scraps, chip chips, cutting and felling. Waste wood, pruned branches, wood flour, etc. produced at the roots) can be used.

  Textile waste is a thread-like substance used as a raw material for cloth and the like, and the type is not limited. Natural fibers or chemical fibers may be used. For example, fiber waste (cotton waste, wool waste, hemp waste, lint waste, cloth waste, cotton waste, waste eyebrows, rayon waste, nylon waste, polyester waste, rope waste) discarded from a textile factory can be used.

The type of rubber waste is not limited as long as it is a polymer material excellent in stretchability. Natural rubber or synthetic rubber may be used. Various waste materials may be used as the rubber scrap. For example, waste tires and synthetic rubber waste can be used.
<Coating layer part 20>

  The covering layer portion 20 covers the granular core portion 10. The covering layer part 20 may cover the entire surface of the granular core part 10 or may cover only a part of the surface of the granular core part 10. The covering layer portion 20 has a function of adhering the excrement disposal materials 1 that have absorbed liquid such as urine during use to form a lump.

  In the excrement disposal material 1, not only the granular core part 10 but also the whole of the granular core part 10 and the covering layer part 20 has a high heating value or the like having a predetermined value. That is, the granular core portion 10 and the coating layer portion 20 as a whole have a high calorific value of 25 MJ / kg or more (preferably 33 MJ / kg or more), a moisture mass fraction of 5% or less (preferably 3% or less), ash content The mass fraction is 10% or less (preferably 5% or less), and the total chlorine content mass fraction is 2% or less (preferably 0.6% or less, more preferably 0.3% or less).

  The covering layer portion 20 contains, for example, organic fibers and an adhesive material as materials. The coating layer part 20 may further contain a water absorbing material, a deodorant material, an antibacterial material, or a coloring material.

  Examples of the organic fiber include paper powder. Examples of paper powder include thin paper, thin paper waste, sanitary paper, sanitary paper waste, toilet paper paper, toilet paper waste, tissue paper paper, tissue paper waste, decorative paper paper, decorative paper waste, dust paper paper, dust paper waste, paper Cotton, paper waste, paper towel, paper towel waste, toilet seat waste, mechanical pulp, mechanical pulp waste, chemical pulp, chemical pulp waste, semi-chemical pulp, semi-chemical pulp waste, cotton-like pulp, cotton-like pulp waste, wood Pulp, wood pulp waste, waste paper pulp pulverized material, fluff pulp, water absorbent fiber waste, paper powder containing water absorbent resin, paper powder generated during bookbinding, paper powder generated during non-woven fabric production, paper powder generated in the papermaking process Paper dust generated at the time of manufacturing sanitary materials can be used. Two or more of these may be used in combination. In any case, it is preferably used after being pulverized into a granular material having a particle size of 0.5 mm or less, more preferably 0.3 mm or less.

Various known substances can be used as the adhesive material, and examples thereof include a paste, a phenol resin adhesive, a vinyl acetate resin emulsion adhesive, and a water absorbent resin. Specifically, for example, potato starch, wheat starch, sweet potato starch, corn starch, tapioca starch, rice starch, dextrin, acrylamide, polyacrylamide, sodium polyacrylate, polyvinyl alcohol, carboxymethylcellulose, sodium alginate, vinyl ester, bentonite, Examples include pullulan, casein, and gelatin. Two or more of these may be used in combination.
[Function and effect]

Excrement treatment material 1 is solid fuel (RPF:
High heat value, moisture mass fraction, ash mass fraction, and total chlorine mass fraction equivalent to Refuse Paper and Plastic Fuel).

  Specifically, the RPF is classified into two varieties, “RPF-coke” and “RPF”. Regarding the higher heating value, “RPF-coke” is 33 MJ / kg or more, while “RPF” is 25 MJ / kg or more. Regarding the moisture mass fraction, “RPF-coke” is 3% or less, whereas “RPF” is 5% or less. Regarding ash mass fraction, “RPF-coke” is 5% or less, whereas “RPF” is 10% or less.

  Furthermore, “RPF” is classified into three grades “A”, “B”, and “C” according to the total mass fraction of chlorine content. The total chlorine mass fraction of "A" is 0.3% or less, that of "B" is more than 0.3% and less than 0.6%, and that of "C" is more than 0.6% and less than 2.0% It is. The total chlorine content mass fraction of “RPF-coke” is 0.6% or less.

  In this respect, the excrement disposal material 1 has a high calorific value of 25 MJ / kg or more, a moisture mass fraction of 5% or less, an ash mass fraction of 10% or less, and a total chlorine content mass fraction of 2% or less. , “RPF” “C” or higher quality. For this reason, the excrement disposal material 1 which is not only excellent in combustibility but also has a small amount of ash remaining after incineration and hardly generates chlorine gas at the time of incineration is obtained. Since the amount of ash is small, the cost required to process the ash can be reduced. Moreover, since chlorine gas is hard to generate | occur | produce, corrosion of incineration equipment and generation | occurrence | production of dioxin can be suppressed. Moreover, according to the excrement disposal material 1, the amount of carbon dioxide emitted during incineration can be reduced. Therefore, the excrement disposal material 1 suitable for incineration is realized.

Moreover, since the excrement disposal material 1 satisfy | fills the criteria of RPF, it can be utilized also as RPF. Since the excrement disposal material 1 can be used not only as an excretion disposal material but also as an RPF as described above, demand is widened and excessive supply of materials can be suppressed. This further promotes effective use of waste materials.
[Production method]

  An example of the manufacturing method of the excrement disposal material 1 will be described. This manufacturing method includes a granulation step, a covering step, a sizing step, and a drying step.

  In the granulation step, the material constituting the granular core 10 (core material) is pulverized to a predetermined size with a crusher, and the pulverized core material is put into a mixer at a predetermined ratio and mixed. . And after adding water, the said core material is extrusion-granulated with a granulator. Thereby, the granular core part 10 is obtained.

  In the coating step, a material (coating material) constituting the coating layer portion 20 is attached to the periphery of the granular core portion 10 using a coating apparatus or the like. The coating material can be applied, for example, by spraying or spraying. Thereby, the coating layer part 20 is obtained.

  In the sizing process, the excrement disposal material produced in the previous process is passed through a sieve having a sieve with a predetermined size. Thereby, only the excrement disposal material which satisfies a predetermined standard is extracted.

  In the drying step, the excrement disposal material extracted in the previous step is dried with a dryer. When the moisture content of the granular core part 10 is too high, it causes mold and the like when the excrement disposal material 1 is stored. By appropriately adjusting the moisture content by drying, it is possible to prevent moisture in the granular core portion 10 from transitioning to the coating layer portion 20 and reducing the water absorption capability, and to prevent generation of mold and the like.

  In addition, you may perform a fragrance | flavor addition process after a drying process. In this step, a fragrance is put into a packaging bag used for bagging the excrement disposal material 1. A fragrance | flavor is injected in a packaging bag with air, for example. Such air injection is performed in order to expand the packaging bag. This step is preferably performed prior to the step of filling the excrement disposal material 1 in a packaging bag (bag filling step).

  Since the said fragrance | flavor adheres to the excrement disposal material 1 within a packaging bag, the excrement disposal material 1 which has fragrance is obtained. Thus, by putting a fragrance | flavor in a packaging bag, it can prevent that a fragrance | flavor adheres to a manufacturing apparatus in the process before it. Therefore, cleaning of the apparatus after manufacture becomes easy.

  When the fragrance is injected into the packaging bag together with air, it is not necessary to provide a device for putting the fragrance in the packaging bag, separately from the device for injecting air into the packaging bag. Therefore, the excrement disposal material 1 having fragrance can be obtained while avoiding complication of the production facility.

  When the fragrance | flavor addition process is performed before a bagging process, the excrement disposal material 1 can be stuffed in the state which the fragrance | flavor has spread throughout the packaging bag. Therefore, it becomes easy to make a fragrance | flavor adhere to the several excrement disposal material 1 in a packaging bag uniformly.

Moreover, since the fragrance | flavor is injected in the packaging bag, it is useless compared with the case where the fragrance is injected outside the packaging bag (for example, when spraying the excrement disposal material 1 before being packed in the packaging bag). The amount of perfume can be reduced.
[Other Embodiments of the Present Invention]

  The excrement disposal material according to the present invention is not limited to the above embodiment, and various modifications are possible. For example, in the said embodiment, the excrement disposal material 1 of the multilayer structure which has the granular core part 10 and the coating layer part 20 was shown. However, it is not essential to provide the covering layer portion 20. That is, the excrement disposal material 1 may have a single-layer structure including the granular core part 10.

1 Excrement Treatment Material 10 Granular Core 20 Covering Layer

Claims (10)

An excrement treatment material for treating excrement,
It has a granular part that is formed into a granular shape,
The granular part is
Higher calorific value is 25MJ / kg or more,
Moisture mass fraction is 5% or less,
Ash mass fraction is 10% or less,
An excrement disposal material characterized by having a total mass fraction of chlorine of 2% or less. In the excrement disposal material according to claim 1,
The excrement disposal material whose total chlorine content mass fraction of the granular part is 0.6% or less. In the excrement disposal material according to claim 2,
The excrement disposal material whose total chlorine content mass fraction of the granular part is 0.3% or less. In the excrement disposal material according to any one of claims 1 to 3,
The granular portion is paper, plastic, a sanitary material classified material containing plastic, or an excrement treating material containing okara as a material. In the excrement disposal material according to claim 4,
The said granular part is the excrement processing material which further contains a wood waste, a fiber waste, a rubber waste, a deodorizing material, an antibacterial material, or a coloring material. In the excrement disposal material according to any one of claims 1 to 5,
A coating layer covering the granular part;
The granular part and the covering layer part as a whole,
Higher calorific value is 25MJ / kg or more,
Moisture mass fraction is 5% or less,
Ash mass fraction is 10% or less,
An excrement disposal material having a total mass fraction of chlorine of 2% or less. In the excrement disposal material according to claim 6,
The excrement disposal material whose total chlorine content mass fraction of the granular part and the covering layer part is 0.6% or less. In the excrement disposal material according to claim 7,
The excrement disposal material whose total chlorine content mass fraction of the granular part and the covering layer part is 0.3% or less. The excrement disposal material according to any one of claims 6 to 8,
The covering layer portion is an excrement disposal material containing organic fibers and an adhesive material as materials. The excrement disposal material according to claim 9,
The covering layer portion is an excrement disposal material further containing a water-absorbing material, a deodorant material, an antibacterial material, or a coloring material.

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