JPS6014373Y2 - silo - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a silo for storing feed, etc., and particularly to a highly durable silo constructed by assembling panels having a specific configuration.

Requirements for tower-shaped silos for storing feed, etc. include corrosion resistance, airtightness, ease of discharge work, safety, workability, and economy.

Therefore, materials for silos are required to have not only rigidity and strength but also corrosion resistance and discharge workability.

Evacuation workability refers to the ease with which the filled feed can be taken out, and is particularly related to the slipperiness of the inner surface of the silo.

That is, when taking out the feed from below the silo, it is required that the feed above the take-out port easily falls downward and is less likely to become clogged on the way.

Traditionally, silos have been constructed from materials such as concrete, steel, and wood.

However, corrosion resistance has been the biggest problem with these materials.

For this reason, it has been considered to line the inner surface of a silo made of these materials with a rubber plate or plastic plate, but this method has poor adhesion, often peels off, and is not durable enough. Economic efficiency was also an issue.

It is also possible to laminate glass fiber and unsaturated polyester resin or epoxy resin on the inner surface to form a so-called FRP lining, but it is difficult to make the lining surface a smooth mirror surface and the adhesion of the interface is poor. There was a problem with the discharge workability.

After investigating a material with a smooth inner surface and high corrosion resistance, we discovered a glass fiber-reinforced vinyl chloride resin board.

This material has a vinyl chloride resin surface and has high corrosion resistance.

However, a simple vinyl chloride resin plate has low strength, and its impact resistance in winter poses a problem, especially in cold regions.

On the other hand, glass fiber-reinforced vinyl chloride resin plates have extremely high strength, and their impact resistance in cold regions reaches 3 to 4 o@ of that of vinyl chloride resin plates.

Although it is possible to construct a silo using this glass fiber-reinforced vinyl chloride resin alone, it was found that this material alone does not have very high rigidity, making it particularly difficult to construct a dog-shaped silo.

Therefore, we considered lining the inner surface of the silo with this glass fiber reinforced vinyl chloride resin board.

This lining can be performed in the same manner as conventional lining with a vinyl chloride resin plate.

However, lining the inner surface of an already constructed silo is complicated and the cost required for lining is high.

The inventor of the present invention investigated a method of constructing a silo using glass fiber-reinforced vinyl chloride resin, and as a result, he came up with a silo constructed by combining panels with a metal outer panel and an inner panel made of this material.

This invention is a silo constructed by combining panels whose outer panels are metal plates and whose white panels are glass fiber-reinforced vinyl chloride resin plates.

Compared to a conventional silo obtained by lining the inner surface of an existing silo, the present invention allows a silo whose inner surface is lined to be obtained without requiring the labor of lining.

Construction of panels is technically easy, and costs such as labor costs are low.

Furthermore, the panels of the present invention can be easily mass-produced at a location other than the construction site, such as a factory, and are easy to transport, so they are suitable for constructing a large number of standardized silos.

The silo of this invention has high rigidity and mechanical strength because the outside is made of a metal plate, and the inside is made of glass fiber-reinforced PVC resin for high corrosion resistance, and the smooth surface makes it easy to discharge. Good, and also has sufficiently high impact resistance.

The outer panel and the white board may be joined by direct adhesion or fusion, but preferably the panel is made to have heat insulation properties without directly contacting the drawing board.

For this purpose, it is preferable to provide a heat insulating material or a hollow space between the outer panel and the inner panel.

In this case, it is preferable to seal the periphery of the panel with a sealing material to seal the inside.

FIG. 1 is a sectional view showing one example of the panel.

A heat insulating material layer 3 made of foamed resin such as polyurethane foam is present between the outer plate 1 made of steel plate and the inner plate 2 made of glass fiber reinforced vinyl chloride resin, and the outer plate 1 and inner plate 2 are surrounded by a layer of butyl rubber etc. It is sealed with sealing material 4.

The heat insulating material layer 3 and the outer panel 1 or the inner panel 2 may be fully or partially bonded, or may not be bonded at all.

It is preferable that the outer plate 1 and the inner plate 2 are bonded together mainly with a sealant 4.

Further, the outer plate 1 and the inner plate 2 may be joined by mechanical means such as bolts or rivets.

FIG. 2 is a partial sectional view showing another example of the panel.

A hollow part 7 is formed between the outer plate 5 and the inner plate 6, and the periphery of the panel is sealed with a sealing material 8.

The hollow portion 7 may be provided with a support 9 for maintaining the distance, and the support 9 may be bonded to each or one of the outer panel 5 and the inner panel 6.

This supporting material 9 can be, for example, a foamed resin band, wood or other organic material, or a metal plate or tube or other inorganic material. If the width of the hollow part is narrow, a thin strip such as double-sided adhesive tape can also be used. can.

Although FIGS. 3 and 4 show examples of joining panels together, the joining method between panels or between panels and other members is not limited to this joining method.

FIG. 3 is a partial sectional view of a portion where panels are overlapped and joined.

Gaskets 11 are attached to the ends of the two panels 10 where the sealing material is present, and these parts are joined with bolts 12.

The left side of the figure is the outer surface, so the outer plate of the panel 10 is located on the left side of the figure, and the inner plate is located on the right side of the figure.

By using the gasket 11 as in this example, it becomes easy to maintain the airtightness of the silo.

FIG. 4 is a partial cross-sectional view of a portion where the panels 10 are butt-joined with each other via the backing plates 13 and 14, and the left side is the outer surface as in FIG. 3.

Since the head of the bolt 12 is exposed on the inner surface, it is preferable to seal that part or use a bolt with good corrosion resistance.

Further, although the outer caul plate 13 poses few problems, the inner caul plate 14 is required to have corrosion resistance, so it is preferable to use a material with good corrosion resistance such as glass fiber reinforced vinyl chloride resin.

It is also preferable to provide a backing between the panel 10 and the backing plates 13, 14 to improve the airtightness of the joint.

FIG. 5 shows a side view of an example of the silo of the present invention constructed from the above-mentioned panels.

This silo is composed of a body part 15, a canopy part 16, a ladder 17, a blower pipe 18, etc. The body part 15 is constructed by combining a plurality of panels 19 (some of which are numbered).

The canopy part 16 may be the above-mentioned panel [that is, it may have the same structure as the body panel], but since this part does not require high rigidity, it may be made of the above-mentioned panel such as a glass fiber reinforced vinyl chloride resin board. It may be of different materials or compositions.

All panels may be joined together by the joining method shown in FIG. 3 and/or FIG. 4, but the method is not limited thereto.

For example, part or all of the joint can be bonded using FRP.

Additionally, after constructing a steel frame, panels can be lined up and bonded to the inner surface of the frame to assemble the body to create a more rigid silo.

In that case, or in other cases as well, it is preferable to prevent material with poor corrosion resistance such as metal from being exposed on the inner surface of the silo as much as possible, or to prevent large irregularities from forming on the inner surface of the silo.

The metal plate serving as the outer plate in the present invention is most preferably a steel plate, but other metal plates such as an aluminum plate can also be used.

These metal plates are preferably plated, anti-corrosion coated, etc.

As the heat insulating material, polyurethane foam, polystyrene foam, polyethylene foam, and other foamed resins are preferred.

In addition, glass wool, vermiculite, slag wool, and other inorganic insulation materials can also be used.

As the sealing material, it is preferable to use a material that has sealing properties with butyl rubber, other rubbers, polyurethane, and other elastomers.

The glass fiber reinforced vinyl chloride resin is preferably a vinyl chloride resin reinforced with relatively long glass fibers.

The length is preferably 5rIrIlt or more on average, particularly 2cln or more.

The glass fibers are preferably contained uniformly or in layers within the vinyl chloride resin.

The proportion of glass fibers in the glass fiber reinforced vinyl chloride resin is preferably 5 to 6% by weight, particularly preferably 10 to 3% by weight.

The vinyl chloride resin may be a vinyl chloride homopolymer, a copolymer, or a blend of these and other resins.

In addition to glass fibers, the vinyl chloride resin may contain stabilizers, plasticizers, fillers, colorants, and other additives.

Preferably, it is a hard vinyl chloride resin that does not contain a large amount of plasticizer.

In addition, the thickness of the glass fiber reinforced vinyl chloride resin board is approximately 1~
61! a is appropriate.

The method for manufacturing this glass fiber-reinforced vinyl chloride resin board is not particularly limited, but it is preferably manufactured by press molding.

That is, for example, vinyl chloride resin-impregnated glass fibers, mixtures of vinyl chloride resin and glass fibers, vinyl chloride resin sheets or films and glass fiber mats, cloths, rovings, etc., are rolled, belted, molded, etc. Manufactured by pressing.

In addition, it may be manufactured by extrusion molding, pultrusion molding, or the like.

This material has a smooth surface, and since the vinyl chloride resin is a thermoplastic resin, it can be subjected to secondary processing such as bending, fusion, etc.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing one example of the panel according to the present invention, and FIG. 2 is a partial sectional view showing another example of the panel. FIGS. 3 and 4 are partial sectional views showing examples of joining panels together. FIG. 5 is a side view showing an example of the silo of the present invention. 1.5... Outer plate, 2,6... Inner plate, 4
, 8...Sealing material, 3...Insulating material, 7
...Hollow part, 10゜19@@mm66 panel.

Claims (1)

[Claims for Utility Model Registration] 1. A silo constructed by combining panels in which the outer panel is a metal plate and the white panel is a glass fiber reinforced vinyl chloride resin plate. 2. The silo according to claim 1 of the utility model registration, characterized in that a heat insulating layer is present between the outer panel and the inner panel. 3. The silo according to claim 2 for utility model registration, characterized in that the heat insulating material is foamed resin. 4. The silo according to Claim 1 of the utility model registration, characterized in that a hollow part exists between the outer plate and the white plate. 5. The silo according to Claim 1 of the utility model registration, characterized in that the periphery of the outer plate and inner plate is sealed with a sealing material.