JP6707511B2 - Livestock panel used as a ceiling or wall of a livestock house, and a livestock house construction method using the same - Google Patents

Description

The present invention relates to a panel for a livestock house suitable for a ceiling or a wall of a livestock house (for example, a chicken house, a pig house, a cow house, etc.), and a livestock house construction method using the panel.

Various panels have been developed so far in order to simplify construction, reduce the number of workers, and shorten the construction period when constructing a livestock house.

For example, in Patent Document 1, a three-layer structure panel in which a foam of a synthetic resin (for example, urethane) is arranged as a heat insulating material between two aluminum zinc alloy plated steel sheets (hereinafter referred to as Al-Zn plated steel sheets). Is disclosed. If this panel is used for the ceiling or wall of a livestock house, the Al-Zn plated steel sheet maintains the rustproof property against rainwater, and the heat insulating material suppresses temperature fluctuations inside the livestock house. Moreover, the Al-Zn plated steel sheet has an advantage that the rigidity required for a livestock house can be obtained.

On the other hand, in recent years, strict hygiene control has been required in the livestock shed, and the livestock shed is being washed daily. Since alkaline cleaning agents (for example, lime, caustic soda, etc.) are used in the cleaning work inside the livestock shed, the surfaces facing the indoor side of the ceiling and walls of the livestock shed are exposed to an alkaline atmosphere.

If the above panel is used for the ceiling or wall of the livestock house in such an environment, the rustproof property of the Al-Zn plated steel plate against rainwater is exerted, and the rusting of the surface facing the outdoor side of the livestock house is suppressed. However, since the corrosion resistance of the Al-Zn plated steel sheet against the alkaline atmosphere is poor, the surface of the livestock house facing the indoor side easily corrodes.

Therefore, as shown in FIG. 4, the above-mentioned panel 2 is attached to the outdoor side of the skeleton 1 (for example, a pillar, a beam, etc.) of the livestock building, and the plastic board 5 is attached to the indoor side of the aviary building 1 to construct the livestock building. The panel 2 has a three-layer structure in which a heat insulating material 4 is arranged between two Al—Zn plated steel plates 3 (see FIG. 4). By performing the construction in this way, it is possible to prevent the alkaline atmosphere in the livestock building from coming into contact with the Al-Zn plated steel sheet 3.

However, by using the panel 2 and the plastic board 5 together, a space 11 surrounded by the frame 1, the panel 2 and the plastic board 5 adjacent to each other is generated. Since pests (such as flies and cockroaches) and harmful beasts (such as mice) easily nest in such a space 11, it has a great adverse effect on hygiene management in the livestock shed.

Patent Document 2 discloses a panel using fiber reinforced plastic (so-called FRP). By installing this panel on the outdoor side of the body of a livestock building, without using plastic boards indoors, it is rustproof against rainwater, corrosion resistant to alkaline atmosphere, antibacterial against pests of harmful insects and vermin, and as a livestock house. The required rigidity can be obtained. However, since FRP is extremely expensive, there is a problem in that the cost of constructing a livestock house and the price of livestock products will rise.

Japanese Patent No. 2524935 JP-A-2014-196638

The present invention solves the problems of the conventional techniques, has the rigidity required as a ceiling or wall of a livestock house, and has rust resistance against rainwater, corrosion resistance to an alkaline atmosphere, livestock and pests in a livestock house, manure of harmful animals It is an object of the present invention to provide a panel for livestock, which has excellent antibacterial properties against and is inexpensive, and a livestock building construction method using the panel.

The present inventor, as a panel suitable for the ceiling or wall of a livestock house, imparts rust prevention against rainwater and sufficient rigidity on one surface, and anticorrosion against alkaline atmosphere and antibacterial activity against livestock etc. on the other surface. The assigned panel (hereinafter referred to as the livestock panel) was examined. That is, when constructing a livestock house, the rustproof surface of the livestock panel is directed to the outdoor side, and the corrosion resistant and antibacterial surface is directed to the indoor side.

As a result of conducting experiments using various materials in order to reduce the cost of manufacturing livestock panels, stainless steel plates, various plated steel plates, corrosion resistance and antibacterial properties were used as inexpensive materials with rust prevention and rigidity. As an inexpensive material to have, attention was paid to a polypropylene (hereinafter referred to as PP) molded body.

Next, the heat insulating material arranged between the plated steel sheet or the stainless steel sheet and the PP molded body was examined. A polyurethane foam, which has been widely used as a heat insulating material, is placed between a plated steel plate or a stainless steel plate and a PP molded product to produce a panel for livestock. The adhesiveness between the urethane foam and the PP molded product is poor. It was found that peeling was easy.

Then, the panel for livestock houses was produced using various heat insulating materials and the experiment was conducted. As a result, they have found that a polystyrene (hereinafter referred to as PS) foam has excellent adhesiveness to a PP molded body and good heat insulation.

The present invention has been made based on such findings.
That is, the present invention is a panel for livestock used as a ceiling or wall of a livestock house, a flat plate-shaped rust-preventing steel plate having rustproofing property, and a flat-plate-shaped heat insulating material attached to the rustproof steel plate with an adhesive, a flat board which is glued to the insulation material, a livestock barn panel having.

In the livestock panel of the present invention, the rust-preventive steel plate is preferably a zinc-aluminum plated steel plate, a coated zinc-aluminum plated steel plate or a stainless steel plate, and the heat insulating material is preferably a PS foam. Further, the antibacterial board is preferably a PP molded plate material. Alternatively, the antibacterial board preferably has a three-layer structure in which a waste plastic foam layer is arranged between two PP surface layers.

The present invention also relates to a livestock house construction method for constructing a ceiling or wall of a livestock house, and a flat plate-shaped rust-preventing steel plate having anticorrosive properties, and a flat plate-shaped heat insulating material attached to the rustproof steel plate with an adhesive, and heat insulation. Using a barn panel having a flat plate antibacterial and corrosion resistant antibacterial board that is attached to the material with an adhesive, the anticorrosive steel plate is directed to the outdoor side of the barn and the antibacterial board is placed on the indoor side of the barn. This is a method of constructing a livestock house where the ceiling or walls are constructed facing each other.

In the livestock building construction method of the present invention, the rust-preventive steel plate is preferably a zinc-aluminum plated steel plate, a coated zinc-aluminum plated steel plate or a stainless steel plate, and the heat insulating material is preferably a PS foam. Further, the antibacterial board is preferably a PP molded plate material. Alternatively, the antibacterial board preferably has a three-layer structure in which a waste plastic foam layer is arranged between two PP surface layers.

Here, the zinc-aluminum-based plated steel sheet refers to an aluminum-zinc alloy steel sheet (Al-Zn-plated steel sheet already described) as disclosed in Patent Document 1, and contains, for example, 2 to 90 mass% of aluminum. , And more preferably 4 to 60% by mass. The coated zinc-aluminum plated steel sheet is an Al-Zn plated steel sheet (so-called coated steel sheet) or resin film (for example, polyolefin resin) that has been coated (for example, polyester resin coating, acrylic resin coating, fluororesin coating, etc.). Al-Zn plated steel sheet (so-called resin film laminated steel sheet) coated with a base film, a fluororesin film, etc.).

According to the present invention, the rigidity required for the ceiling or wall of a livestock house, rustproofness against rainwater, and corrosion resistance to alkaline atmosphere, excellent livestock and pests in the livestock, excellent antibacterial activity against manure of harmful animals, and inexpensive It is possible to obtain a panel for livestock shed. Further, since the livestock shed can be easily constructed by using the livestock shed panel, the effect is remarkably industrially achieved.

It is sectional drawing which shows the example of the panel for livestock houses of this invention typically. It is sectional drawing which shows typically the other example of the antibacterial board in FIG. It is sectional drawing which shows typically the example which attached the panel for livestock houses of this invention to the body. It is sectional drawing which shows the example which installed the conventional panel typically.

FIG. 1 is a cross-sectional view schematically showing an example of a livestock housing panel of the present invention. The livestock panel 6 of the present invention is configured by attaching the anticorrosive steel plate 7 and the heat insulating material 4 with an adhesive, and attaching the antibacterial board 8 to the heat insulating material 4 with an adhesive.

As the rustproof steel plate 7, a steel plate (for example, a plated steel plate, a stainless steel plate, etc.) having a rigidity sufficient for use as a ceiling or a wall of a livestock house and having a rustproof property against rainwater is used. In addition, it is preferable to use an Al—Zn plated steel plate as the anticorrosion steel plate 7 as an inexpensive material having both sufficient rigidity and anticorrosion property. The rust-preventive steel plate 7 is an Al-Zn plated steel plate (so-called coated steel plate) or a resin film (for example, a polyolefin resin film, etc.) that is coated (for example, polyester resin coating, acrylic resin coating, fluororesin coating, etc.). An Al-Zn plated steel plate (so-called resin film laminated steel plate) coated with a fluororesin film or the like may be used. In addition, it is preferable to use the Al-Zn plated steel sheet containing aluminum in the plating layer in an amount of 2 to 90% by mass, and more preferably 4 to 60% by mass.

The antibacterial board 8 uses a flat plate-shaped molded product made of a material having corrosion resistance to an alkaline atmosphere and having an excellent antibacterial property against livestock, pests and manure of a harmful animal in a barn. In the present invention, from the viewpoint of reducing the manufacturing cost of the panel 6 for livestock shed, it is preferable to use a cheap PP molded plate (hereinafter referred to as PP molded plate) as the antibacterial board 8.

The heat insulating material 4 necessary for controlling the temperature in the livestock house is arranged between the rustproof steel plate 7 and the antibacterial board 8 and is attached with an adhesive. In the present invention, it is preferable to use a PS foam (hereinafter referred to as PS foam) as the heat insulating material 4 from the viewpoint of obtaining sufficient adhesion to the PP molded plate material.

FIG. 1 shows an example in which a flat plate-shaped molded product (for example, a PP molded plate material) made of a single material is used as the antibacterial board 8. However, in order to further reduce the cost of the livestock panel 6, FIG. You may use the antibacterial board 8 as shown in FIG.

In the antibacterial board 8 shown in FIG. 2, a waste plastic foam layer 10 (hereinafter referred to as a waste plastic foam layer) is disposed between two PP surface layers 9 (hereinafter referred to as PP surface layers). It has a three-layer structure. Both the PP surface layer and the waste plastic foam layer 10 are attached with an adhesive.

Waste plastics are roughly classified into plastics discarded as industrial waste (so-called industrial waste plastics) and plastics discarded from general households (so-called general waste plastics). The waste plastic foam used in the antibacterial board 8 in FIG. The body layer 10 is formed by melting general waste plastic and then forming the foam into a layer. Since the general waste plastic is a mixture of polyethylene and PP, the components do not significantly change. That is, the antibacterial board 8 having a three-layer structure as shown in FIG. 2 has characteristics equivalent to those of a PP molded plate made of a single material.

By thus forming a three-layer structure including the two PP surface layers 9 and the inexpensive plastic waste foam layer 10, the cost of the antibacterial board 8 can be reduced, and the cost of the livestock panel 6 can be reduced. You can Moreover, since the surface of the antibacterial board 8 attached to the heat insulating material 4 (see FIG. 1) is the PP surface layer 9, it is possible to secure good adhesiveness with the PS foam. Further, since the surface exposed to the alkaline atmosphere in the barn and on which the livestock, pests, and dung of harmful animals adhere is also the PP surface layer 9, excellent corrosion resistance and antibacterial properties can be exhibited.

As the PP surface layer 9 of the antibacterial board 8, it is preferable to use a molded PP obtained by kneading powder of pulverized titanium dioxide and/or mica, because the antibacterial board 8 can have improved corrosion resistance and antibacterial property. In order to balance the antibacterial, antibacterial, rigidity and adhesive properties of the antibacterial board 8, the content of titanium dioxide in the PP surface layer 9 is 1 to 3% by weight and the content of mica is 10 to 20% by weight. Within the range is preferable. More preferably, titanium dioxide is 1 to 2 wt% and mica is 13 to 17 wt %.

When the panel 6 for a livestock shed is attached to the body 1 as a ceiling or a wall of the livestock shed, as shown in FIG. 3, the anticorrosion steel plate 7 is directed to the outdoor side of the livestock shed and the antibacterial board 8 is directed to the indoor side of the livestock shed. Build a livestock shed. By doing so, the rustproof steel plate 7 exhibits rustproofness against rainwater, and also exhibits rigidity required for a ceiling or a wall. In addition, the antibacterial board 8 exhibits corrosion resistance to the alkaline atmosphere in the livestock house and also exhibits antibacterial properties against manure.

Therefore, it is not necessary to attach another board to the indoor side of the body 1, and as a result, the space 11 as shown in FIG. 4 does not occur.

[Example 1]
In order to investigate the antibacterial properties of the antibacterial board according to the present invention shown in FIG. 2, that is, the antibacterial board having a three-layer structure in which a waste plastic foam layer is disposed between two PP surface layers, a culture test and a washing test were performed. I did.

First, the procedure and results of the culture test will be described.
The PP surface layer of the new antibacterial board was observed with a microscope to examine the numbers of Escherichia coli and Salmonella. The number of bacteria is used as the initial culture value. Then, as a culture test, feces and urine in a pig house were applied to the PP surface layer, cultured at 30° C. in a wet state (24 hours), and then observed with a microscope to examine the numbers of Escherichia coli and Salmonella. As a result, the number of bacteria was four times the initial culture value. This is Example 1 of the invention.

For comparison, the surface of a new vinyl chloride plate was observed under a microscope to examine the numbers of Escherichia coli and Salmonella. The number of bacteria is used as the initial culture value. Then, after conducting a culture test under the same conditions as in Inventive Example 1, the number of Escherichia coli and Salmonella was examined by observing with a microscope. As a result, the number of bacteria was 7 times the initial value of culture. This is Comparative Example 1.

Furthermore, the surface of the new veneer plate was observed with a microscope to examine the numbers of Escherichia coli and Salmonella. The number of bacteria is used as the initial culture value. Then, after conducting a culture test under the same conditions as in Inventive Example 1, the number of Escherichia coli and Salmonella was examined by observing with a microscope. As a result, the number of bacteria was 8 times the initial value of culture. This is Comparative Example 2.

Next, the procedure and result of the cleaning test will be described.
The PP surface layer of a new antibacterial board was coated with feces and urine in a pig house, and after 12 hours, it was observed with a microscope to examine the numbers of Escherichia coli and Salmonella. The number of bacteria is used as the initial washing value. Then, as a washing test, high-pressure water was sprayed for 10 seconds and left still for 10 minutes, and then observed with a microscope to examine the numbers of Escherichia coli and Salmonella. As a result, the number of bacteria was 4% of the initial value of washing. This is Invention Example 2.

For comparison, the feces and urine in the pig house was applied to the surface of a new plywood board, and after 12 hours, the number of Escherichia coli and Salmonella was examined by observing with a microscope. The number of bacteria is used as the initial washing value. Then, after performing a washing test under the same conditions as in Inventive Example 2, the number of Escherichia coli and Salmonella was examined by observing with a microscope. As a result, the number of bacteria was 26% of the initial value of washing. This is Comparative Example 3.
Table 1 shows the results of the above-mentioned culture test and washing test.

As is clear from Table 1, the increase in the number of bacteria of Invention Example 1 due to the culture test was suppressed to be lower than that of Comparative Examples 1 and 2. Further, in the cleaning test, Inventive Example 2 was significantly sterilized as compared with Comparative Example 3 .

The culture test and cleaning test shown in Table 1 were conducted using an antibacterial board having a three-layer structure (see FIG. 2 ). It is obvious that similar results can be obtained by conducting an experiment using a PP molded plate material made of a single material as shown in (1) as an antibacterial board.

[Example 2]
Using a PP molded plate made of a single material as an antibacterial board as a barn panel (see Fig. 1) and a three-layer structure antibacterial board (see Fig. 2) as a barn panel together, Constructed At that time, as shown in FIG. 3, the rust-preventing steel plate of the panel for the livestock shed was directed to the outdoor side of the livestock shed and the antibacterial board was attached to the body of the livestock shed facing the indoor side.

In this way, pigs were bred in the barn, and after two months passed, the outside and inside of the panel for the barn were visually inspected. As a result, the two types of panels for livestock were not deformed, and no rust on the outdoor side or corrosion on the indoor side was observed. That is, it was confirmed that the livestock panel of the present invention has rigidity, rust prevention and corrosion resistance.

1 body 2 panel 3 Al-Zn plated steel plate 4 heat insulating material 5 plastic board 6 livestock panel 7 rustproof steel plate 8 antibacterial board 9 PP surface layer
10 Waste plastic foam layer
11 space

Claims (6)

A panel for a livestock house used as a ceiling or a wall of a livestock house, comprising a flat plate-shaped rustproof steel plate having rustproofing properties, a flat plate-shaped heat insulating material attached to the rustproof steel plate with an adhesive, and the heat insulating material a flat board which is glued, was closed, the board is characterized by forming a three-layer structure in which the waste plastics foam layer between two polypropylene surface layer barn Panel. The livestock panel according to claim 1, wherein the rustproof steel plate is a zinc-aluminum plated steel plate, a coated zinc-aluminum plated steel plate, or a stainless steel plate. The livestock panel according to claim 1 or 2, wherein the heat insulating material is polystyrene foam. In a livestock building construction method for constructing a ceiling or a wall of a livestock building, a flat plate-shaped rustproof steel plate having rustproofing properties, a flat plate-shaped heat insulating material attached to the rustproof steel plate with an adhesive, and an adhesive to the heat insulating material Using a panel for a barn having a three-layer structure in which a waste plastic foam layer is disposed between two flat plate-shaped polypropylene surface layers to be attached with an agent, the rust-preventing steel plate is used for the barn house. barn construction method characterized by directs outward, to construct a direct allowed by the ceiling or the wall in front Kibo over de indoor side of the barn. The livestock building construction method according to claim 4 , wherein the rust-preventive steel plate of the panel for a livestock house is a zinc-aluminum-based plated steel sheet, a coated zinc-aluminum-based plated steel sheet, or a stainless steel sheet. The livestock building construction method according to claim 4 or 5 , wherein the heat insulating material of the livestock housing panel is a polystyrene foam.

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