JPH06254204A - Forming method for layer of artificial snow - Google Patents

Abstract

PURPOSE:To provide the title method whereby a process can be omitted and performance transportable in a pipe line can be improved. CONSTITUTION:A layer B of granular materials is formed on a floor 2 for forming the layer of snow, and a mixture of a water-absorbable polymer and water is tranported through a pipe line and is distributed over the layer B. The layer B of the granular materials containing the water by the distribution of the mixture and a gelation layer C of the polymer distributed are allowed to freeze by a refrigerating means. In this way, the frozen gelation layer C is used as a layer A of artificial snow.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming an artificial snow layer in which a frozen gel layer of a water-absorbing polymer is artificially snow-covered such as in an artificial ski resort.

[0002]

2. Description of the Related Art Conventionally, a frozen granular material layer for the purpose of protecting and strengthening a cooling pipe is first formed by spraying water on a granular material layer such as sand laid on a floor to freeze the granular material layer, and then the frozen granular material layer. A frozen gel layer to be an artificial snow layer was formed by spraying a mixture of a water-absorbent polymer and water on a material layer and freezing the sprayed gel layer of the water-absorbent polymer.

[0003]

However, in the case of the above-mentioned conventional technique, as a manufacturing process, there are a total of 3 processes including a sprinkling process for forming a frozen granular material layer, a cooling and freezing process, and a cooling and freezing process for forming a frozen gel layer. Not only two steps are required,
Since a gel layer is formed by spraying a mixture of a water-absorbent polymer and water on the frozen granular material layer, if there is a large amount of water in the mixture, it will form a lump with a lot of water on the frozen granular material layer. It becomes impossible to freeze and form a good quality snow layer, and as a result, when pipelining the mixture to a spray nozzle, etc., the water in the mixture cannot be made too large and the mixture has poor fluidity. However, there is a drawback in that the transportability through the pipeline is lacking, a large-capacity pump for pumping and a pipeline with a large diameter are required, and the transportation takes time. An object of the present invention is to provide a method for forming an artificial snow layer that can omit steps and improve pipe transportability.

[0004]

The method of forming an artificial snow layer according to the present invention is characterized in that a granular material layer is formed on a floor for forming a snow layer, and a mixture of a water-absorbing polymer and water is pipeline-transported. The point is that the artificial snow layer is formed by spraying on the granular material layer and freezing the granular material layer containing the water by the spraying and the sprayed gel layer of the water absorbing polymer by a cooling means. And
It is preferable that the pipeline transportation is performed for a mixture of a water-absorbent polymer and water having a water absorption amount higher than the maximum water absorption amount.

[0005]

According to the present invention, by spraying the mixture, the water in the mixture is sprayed as the sprayed water for the granular material layer, so that the water for the granular material layer required when forming the frozen granular material layer is used. No spraying process is required. Moreover, even if the amount of water in the mixture is large, the water is contained in the granular material layer by spraying on the granular material layer, and it is possible to eliminate excess water, so that the amount of water in the mixture is large. Any thing can be used. In particular, by utilizing this, when using a mixture having a water content larger than the maximum water absorption amount of the water-absorbent polymer, while making the fluidity of the mixture extremely excellent, the water sprayed to the granular material layer The quantity can be sufficient.

[0006]

Therefore, according to the present invention, it is possible to improve the workability and the pipeline transportability by reducing the steps. In particular, according to the second aspect, it is possible to ensure watering to the granular material layer and further improve workability.

[0007]

[Example] As shown in FIG. 1, the artificial ski resort has a building 1
A floor 2 for stack formation having an inclined posture is installed therein, a snow layer cooling pipe 3 is laid on the floor 2, an artificial snow layer A is formed, and the snow layer cooling pipe 3 is provided with a cooling medium for cooling. A heat source device 4 for supplying air and an air conditioner 5 for air conditioning the inside of the building 1 are provided.

The artificial snow layer A is formed by the following steps. <Step 1> As shown in FIG. 2, the granular material layer B is formed on the floor 2.
To form. <Step 2> As shown in (a) and (b) of FIG. 3, the mixture of the water-absorbing polymer and water is transported from the tank 8 to the nozzle 9 through the pipe line 6 and the pump 7 to form the granular material layer. The excess water in the mixture is sprinkled onto the granular material layer B
At the same time as containing water, a gel layer C of a water-absorbent polymer is formed on the granular material layer B. <Step 3> As shown in FIG. 1, by supplying a cooling refrigerant to the snow layer cooling pipe 3 from a heat source device 4, the hydrated granular material layer B and gel layer C are frozen, and the frozen Let the gel layer be artificial snow layer A. In this embodiment, the cooling means comprises the snow layer cooling pipe 3 and the heat source device 4. The granular material layer B is made of sand. The amount of water in the mixture is greater than the maximum water absorption of the water-absorbent polymer.
That is, the mixture is a solid-liquid mixed phase of water-absorbing polymer that has absorbed 100% of water and water.

[Other Embodiment] In the above embodiment, the granular material layer B is used.
Although it is composed of sand, it may be composed of a water-absorbent polymer.

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

[Figure 1] Conceptual view of artificial ski resort

FIG. 2 is a sectional view showing a snow layer forming process.

FIG. 3 is a sectional view showing a snow layer forming process.

[Explanation of symbols] 2 floor A artificial snow layer B granular material layer C gel layer

Claims (2)

[Claims] 1. A granular material layer (B) is formed on a floor (2) for forming a snow layer, and a mixture of a water-absorbing polymer and water is pipeline-transported to the granular material layer (B). The granular material layer (B) which has been sprayed and contains water by the spraying and the sprayed gel layer (C) of the water-absorbent polymer are frozen by a cooling means, and the frozen gel layer is used as an artificial snow layer (A). Artificial snow layer formation method. 2. The method for forming an artificial snow layer according to claim 1, wherein the pipeline transportation is carried out for a mixture of a water-absorbing polymer and water having a larger water absorption amount than the water-absorbing polymer.