JP3651889B2 - Molded product comprising plant fiber and method for producing the same - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a molded article made of plant fibers formed from a plant fiber-containing material discarded as industrial waste, domestic waste, etc. as a main raw material, and a method for producing the same.
[0002]
[Prior art]
Currently, industrial waste, domestic waste, etc. containing plant fibers such as straw, colayan husk, coffee candy, tea husk etc. are disposed of by incineration, landfilling, etc. However, such a disposal method is not only a waste of resources, but also may cause environmental pollution such as air pollution.
[0003]
[Problems to be solved by the invention]
Therefore, the object of the present invention is to recycle resources, effectively utilize them as a treatment for industrial waste made from plant fibers, domestic waste, etc., and not to cause environmental pollution. It is to provide.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has taken the following measures. That is,
Moldings made from plant fibers according to claim 1 is a powdery product obtained by crushing plant fibers, by mixing a binder and kneading, shaping the resulting kneaded product was heated under high pressure molding It is a thing, Comprising: The said binder was used as yeast, the kneaded material was fermented into fermented material, and this fermented material was shape | molded , It is characterized by the above-mentioned.
[0005]
The molded article comprising the plant fiber according to claim 2 is characterized in that, in the means according to claim 1, a calcium-containing material is mixed in the binder.
The molded article comprising the plant fiber according to claim 3 is characterized in that, in the means according to claim 1 or 2, industrial waste or domestic waste is used as a raw material for the plant fiber.
The molded article comprising the plant fiber according to claim 4 is the means according to claim 3, wherein the industrial waste or domestic waste is any one of waste wood, rice husk, straw, colayan husk, coffee candy, and tea husk. It is characterized by that.
The molded article comprising the plant fiber according to claim 5 is characterized in that, in the means according to claim 2, the calcium-containing material is a fossil of a straw .
[0006]
The method for forming a molded product made of plant fiber according to claim 6 is obtained by crushing a raw material made of plant fiber with a crusher, then adding and kneading yeast and calcium-containing material to the powdery product. The kneaded product thus obtained is fermented into a fermented product, and the fermented product is heated and molded in a mold under high pressure.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a manufacturing system diagram illustrating an embodiment of the present invention.
[0008]
First, in the manufacturing plant A which manufactures the pot 15 for plant growth as an Example, as shown in FIG. 1, the colayan husk as agricultural waste is used as a plant fiber. The collan shell is used as a raw material 10, and a binder (adhesive material) 12 is added to and kneaded into a powdery material 11 obtained by chopping the raw material 10. Then, it is molded by heating under high pressure to obtain a plant growing pot 15. Moreover, as an embodiment, by using yeast as the binder 12, the kneaded product 14 of the raw material 10 is fermented to obtain a fermented product, and the fermented product is molded under high pressure at a high temperature for plant growth. You can get a pot. As the binder 12, in addition to yeast, a paste material, a plant resin material, or the like having good compatibility with plant fibers and high viscosity may be used. In this case, a fermentation process is unnecessary.
[0009]
Furthermore, the pH of the kneaded product 14 is adjusted by adding an appropriate amount of a calcium-containing material 13, for example, a powder of straw fossil, to the kneaded product 14, and the shape retention period of the plant growing pot 15 is increased. For example, it can be adjusted in units of several months. Moreover, it is also possible to use domestic waste as the raw material 10 in addition to industrial waste. For example, the object of the present invention can be achieved even when the industrial waste or the domestic waste is any one of waste materials, rice husks, straw, colayan husks, coffee jars, tea husks, and the like.
[0010]
Next, specific embodiments will be described with reference to the drawings.
Agricultural waste colayan husk is used as the raw material 10. The raw material 10 is collected and supplied to the manufacturing plant A. As shown in FIG. 1, the manufacturing plant A includes a first conveyor 20 that moves the raw material 10, a pulverizer 30 that pulverizes the raw material 10 that has been conveyed by the first conveyor 20, and the pulverization. The second conveyor 40 that further conveys the powdery material 11 pulverized by the machine 30, the mixing that mixes the mixture 13 by mixing the binder 12 with the powdery material 11 that has been conveyed by the second conveyor 40. A kneading tank 50, a screw conveyor 60 for screw-conveying the kneaded material 14 kneaded in the mixing / kneading tank 50 in a pipe, and the kneaded material 14 conveyed by the screw conveyor 60 are pressurized under heating. A press machine 70 for molding, and further, if necessary, a third conveyor for further transporting the plant growing pot 15 formed by the press machine 70, and transported by the third conveyor It may be prepared the deburring machine to take the burrs of the plant for growing pot 15 that is to come.
[0011]
In the above plant, when producing agricultural materials such as the plant growing pot 15 or industrial packaging materials, it is only necessary to inspect the product thereafter. For example, when producing tableware. Will inspect products after drying and disinfection.
First, the collan husk that is the raw material 10 is collected and supplied to the manufacturing plant A. It is desirable to make a business contract with a growing farmer when producing products quantitatively in any case, such as when using colayan husk or rice husk.
[0012]
The first conveyor 20 is composed of a loop-shaped belt that is stretched between two pulleys (one of which is rotationally driven by a motor). Moreover, the grinder 30 which grind | pulverizes the raw material 10 conveyed with the 1st conveyor 20 to a powder form consists of a container for a grinding | pulverization, and the rotary cutting blade supplied from this container for a grinding | pulverization, for example. Further, the raw material 10 may be pulverized (chopped) by rotating the rotary cutting blade within a pulverization container for a certain period of time.
Furthermore, the second conveyor 40 that conveys the powdery material 11 is basically the same as the first conveyor 20, but since the conveyed material is a powder, means for preventing the powder from falling from the conveyor. It is necessary to take. Therefore, it is good also as a bucket conveyor instead of a belt conveyor.
[0013]
In the mixing / kneading tank 50, first, yeast as the binder 12 is mixed into the powdery material 11 conveyed by the second conveyor 40. The amount of the yeast mixed is preferably about 100 g per 1 kg of the colayan shell.
At this time, other materials necessary for the yeast to ferment the colayan husk, such as an appropriate amount of water (15% by mass), are added. In addition, although there exist many types of yeast, as long as it is a type which ferments plant fiber and increases the adhesiveness of the powdery material 11 as a result, what kind of yeast may be sufficient. In particular, ascomycetous yeast is desirable.
As a result of fermentation, those that give off a bad odor, those that are not hygienic, those that do not have shape retention after heat molding, etc. are not preferred. However, those that give off a pleasant odor after becoming a product may be preferred. Moreover, you may use the paste material and vegetable resin which adhere | attach a plant fiber simply other than the yeast which performs this fermentation effect | action.
[0014]
The kneading means used as the kneaded product 14 may be a means for striking a hammer, such as a tacked wrinkle, in addition to stirring by a stirrer or kneading with a screw. However, the means for applying the impact is more desirable from the viewpoint of the subsequent binding of the kneaded material 14.
The press 70 forms the kneaded material 14 conveyed by the screw conveyor 60 by pressurizing it under heating in a mold. A press machine is used for pressurization. The degree of pressurization is desirably about 12 to 16 kg / cm ^{2, and the} degree of heating is desirably about 150 ° C. By this press machine, the kneaded material 14 is formed, and the plant growing pot 15 is completed. The details of this forming means are filed by the present applicant as PCT / JP00 / 06279.
[0015]
【The invention's effect】
As can be understood from the above explanation, according to the present invention, industrial waste made of plant fibers, domestic waste, etc. can be used as resources, and can be used effectively, and also cause environmental pollution. There is no.
[Brief description of the drawings]
FIG. 1 is a system diagram illustrating an embodiment of the present invention.
[Explanation of symbols]
A ... Production plant 10 ... Rough raw material 11 ... Powder 12 ... Binder 13 ... Calcium content 14 ... Kneaded product 15 ... Plant growing pot 20 ... First conveyor 30 ... Crusher 40 ... Second conveyor 50 ... Mixing / kneading tank 60 ... Screw conveyor 70 ... Pressing machine

Claims (6)

A powdered product obtained by crushing plant fibers is mixed with a binder and kneaded, and the resulting kneaded product is molded by heating under high pressure, wherein the binder is yeast and the kneaded product A molded product comprising plant fibers, wherein the fermented material is fermented to form a fermented product. 2. A molded article comprising plant fibers according to claim 1, wherein a calcium-containing material is mixed in the binder. An industrial waste or a domestic waste is used as a raw material for the plant fiber, and the molded product comprising the plant fiber according to claim 1 or 2. 4. The molded article made of plant fiber according to claim 3, wherein the industrial waste or domestic waste is any one of waste wood, rice husk, straw, colayan husk, coffee mash, and tea husk. The molded article made of plant fiber according to claim 2, wherein the calcium-containing material is a fossil of cocoon. After crushing a crude raw material made of plant fiber with a crusher, yeast and calcium-containing material are added to and kneaded with the powdered material, and the obtained kneaded material is fermented to give a fermented product. A method for forming a molded article made of plant fibers, characterized by heating and molding in a mold under high pressure.

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