JPH06323710A - Artificial snow conveying apparatus - Google Patents

Abstract

PURPOSE:To effectively use carrier air cooled down by artificial snow made from ice and efficiently convey the artificial snow to ski slopes in a ski area. CONSTITUTION:A snow pressure-conveying pipe 30 has a conveying space 30a inside and 1st-nth snow takeout ports 16, 17 and 18 on a ski slope 70 side, and artificial snow 60 made from ice is pressure-conveyed by carrier air 65 through the conveying space 30. Cyclones are equipped on the snow takeout ports to separate the carrier air 65 from the snow 60 and each provided with an air takeout port through which the separated air is taken out. The snow pressureconveying pipe 30 is covered with an insulating pipe 35 so as to form an insulating space 36 between the two pipes, and the cyclones are connected to the insulating pipes so that the snow conveying space 30a and the insulating space 36 communicate with each other through air takeout pipes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ice-snow transport facility suitable for efficiently transporting ice-snow as artificial snow to a ski slope.

[0002]

2. Description of the Related Art Conventionally, when carrying ice snow, which is artificial snow formed into small pieces by an ice making device, to a ski slope, the small pieces of ice snow are compressed and formed by a blower or the like. Ice and snow were transported to the slopes by being mixed with the transport air for transport and being pressure-fed by the transport air through the ice and snow pumping pipe laid down to the slopes.

[0003]

However, when ice and snow are pumped to the slope, the ice and snow pump tube is warmed by the outside air, and when the ice and snow comes into contact with the inner surface of the ice and snow pump tube, frictional heat is generated. It was. Then, a part of the ice and snow in the process of being pumped, in particular, the small and small pieces of ice and snow are melted by these heats, so the capacity of the ice and snow finally transferred to the slope in the form of ice and snow is supplied from the ice and snow making device. It was much smaller than the volume of ice and snow. That is,
The efficiency of transporting ice and snow to the slopes was low. In addition, while ice-snow is being pumped to the slope, the ice-snow-carrying carrier air cooled by the ice-snow is released to the atmosphere while spraying the ice-snow to the slopes, and these discharged carrier air are effectively used. Didn't.

In view of the above circumstances, therefore, the present invention aims to make effective use of the carrier air cooled by ice and snow, and to efficiently carry ice and snow, which is artificial snow, to a ski slope. The purpose is to provide.

[0005]

That is, the first of the present invention
The invention of claim 1 has an ice and snow pumping pipe (30) in which an ice and snow transporting space (30a) in which ice and snow (60) is pumped by transporting air (65) is formed. (16, 17, 18) is provided, and an ice and snow separating means (21, 26) for separating carrier air from ice and snow that is pressure-fed in the ice and snow transport space is provided at the ice and snow extraction section of the ice and snow pumping pipe. A cold insulation pipe (35) is provided on the pressure-feeding pipe so as to form a cold insulation space (36) between an inner surface (35c) of the cold insulation pipe and an outer surface (30d) of the ice-and-snow pressure-feeding pipe. An air extraction pipe (23) for extracting the carrier air separated by the ice and snow separation means is provided, and the air extraction pipe and the cold insulation pipe are connected so as to connect the air extraction pipe and the cold insulation space. It

A second aspect of the present invention is the cyclone capable of separating the carrier air from the ice and snow that is pressure-fed in the ice-and-snow transport space of the ice-and-snow pumping pipe in the first invention. 21).

A third aspect of the present invention is the screen according to the first aspect, wherein the ice / snow separating means can separate the carrier air from the ice / snow being pressure-fed in the ice / snow transport space of the ice / snow transport tube. 26).

The numbers in parentheses are for convenience of showing the corresponding elements in the drawings, and the present description is not limited to the description in the drawings. The same applies to the column of "action" below.

[0009]

With the above-described structure, the present invention is characterized in that the ice and snow take-out portion (16, 17, 18) of the ice and snow pumping pipe (30) is
By the ice and snow separating means (21, 26), the ice and snow transport space (3
The carrier air (65) separated from the ice and snow (60) sent under pressure 0a) is supplied to the cold storage space (36) through the air extraction pipe (23). Further, the ice and snow pressure-feeding pipe is insulated from outside air by the cold insulation space (36) formed between the outer surface (30d) of the ice-and-snow pressure-feeding pipe (30) and the inner surface (35c) of the cold insulation pipe (35). Acts like.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view showing an embodiment of the ice and snow spraying equipment to which the ice and snow transport equipment according to the present invention is applied, and FIG. 2 is a perspective view showing the details of the ice and snow separation device of the ice and snow transport equipment shown in FIG.
FIG. 3 is a cross-sectional view showing another example of the ice and snow separation device shown in FIG.

As shown in FIG. 1, the ice and snow spraying equipment 100 to which the ice and snow transportation equipment according to the present invention is applied has an ice and snow manufacturing equipment 10. The ice and snow manufacturing equipment 10 includes the ice and snow pressure feeding equipment 1 and ice and snow transportation. The facility 15 is provided for transporting the snow / snow 60 manufactured and stored by the snow / snow manufacturing apparatus 10 to the slope 70. That is, the ice and snow manufacturing device 10 uses the water 6
1 has a water storage tank 11 capable of freely storing water, and a refrigerator 12 capable of producing ice cubes 60 in the form of small blocks is connected to the water storage tank 11 via a pump or the like not shown. The refrigerator 12 is connected to an ice storage 13 capable of storing ice and snow 60 produced by the refrigerator 12.

On the other hand, the ice and snow pumping apparatus 1 has a blower 2 as shown in FIG. 1, and an intake pipe 6 is connected to the right side of the blower 2 in the figure. Tip of intake pipe 6 (right side in the figure)
An air filter 9 is provided in the air conditioner, and by driving the blower 2, the outside air 64 can be sucked into the intake pipe 6 via the air filter 9. An air supply pipe 7 is connected to the left side of the blower 2 in the figure, that is, on the side opposite to the intake pipe 6, and the air supply pipe 7 is provided in the middle of the air supply pipe 7.
A heat exchanger 5 is provided which can cool the carrier air 65 compressed and formed by the blower 2 carried therein to a predetermined temperature with a refrigerant. An ice and snow feeder 3 is provided at the tip of the air supply pipe 7 (on the left side in the figure).
The ice storage box 13 and the ice storage box 13 are connected to each other by a conveyor or the like (not shown) in the form of supplying small pieces of ice and snow 60 from the ice storage box 13 to the ice and snow feeder 3.

On the left side of the ice and snow feeder 3 in the figure, as shown in FIG. 1, an ice and snow transport facility 15 is provided.
The ice-and-snow transport facility 15 is installed on the slope 70 from the ice-and-snow feeder 3.
It is laid in such a way that it extends in the ice and snow transport direction (arrow A direction). That is, the ice and snow transport equipment 15 is provided with the ice and snow pressure feed pipe 3 extending in the ice and snow transport direction (arrow A direction).
0, and the first to n-th ice-and-snow extracting portions 16, 17, and 18 that can take out ice and snow are attached to the ice-and-snow pumping pipe 30.
It is provided so as to correspond to the first to n-th spraying areas 71, 72, 73 forming 0. These ice and snow extraction units 16 and 1
7, 18 are openable and closable first to nth ice and snow extraction branch pipes 3.
1, 32 and 33 are provided respectively. In addition, inside the ice and snow pumping pipe 30, a transport space 30a in which the ice and snow 60 is pumped by the transport air 65 is formed in such a manner that the ice and snow feeder 3 and the ice and snow extraction branch pipes 31, 32 and 33 communicate with each other. As shown in FIG. 2, these ice and snow take-out branch pipes 31, 32, and 33 have take-out ports 31a and 32, respectively.
a and 33a are provided so as to be able to communicate the transport space 30a with the outside of the spraying areas 71, 72 and 73 of the slope 70.

In addition, the ice-and-snow pressure-feeding pipe 30 has a structure shown in FIGS.
As shown in FIG. 3, the cold insulation pipe 35 having an inner diameter larger than the outer diameter of the ice and snow pressure feed pipe 30 is provided over the entire length of the ice and snow pressure feed pipe 30 in a concentric manner. That is, the ice and snow pressure-feeding pipe 30 and the cold insulation pipe 35 are
A double pipe structure is formed in which the ice and snow pressure feed pipe 30 is an inner pipe and the cold insulation pipe 35 is an outer pipe, and a constant gap is provided between the inner peripheral surface 35c of the cold insulation pipe 35 and the outer peripheral surface 30d of the ice and snow pressure transmission pipe 30. A cold storage space 36 is formed. In addition, ice and snow pressure pipe 30
Each outlet 3 of each outlet branch pipe 31, 32, 33 provided in the
1a, 32a and 33a are provided so as to project from each cold insulation pipe 35 and maintain an airtight state with the cold insulation pipe 35. Further, the outlets 31a, 32a of the cold insulation pipe 30,
As shown in FIG. 2, intakes 35a are formed in the vicinity of 33a, respectively. On the other hand, as shown in FIG.
An exhaust port 35b that communicates with the outside is provided. The exhaust port 35b is provided with an exhaust fan 38 that can be driven to blow air so as to exhaust air from the cold storage space 36 to the outside through the exhaust port 35b. Is appropriately set in accordance with the pressure loss of the pipe forming the.

Further, each ice and snow take-out section 1 of the ice and snow pumping pipe 30
6, 17, 18 ice and snow extraction branch pipes 31, 32, 33,
As shown in FIGS. 1 and 2, an ice and snow separation device 20 is provided. By the way, as shown in FIG. 2, the ice and snow separation device 20 has a cyclone 21 which can be solid-gas separated,
Inside the cyclone 21, there is formed a solid-gas separation space 21a that extends in the vertical direction and separates solid-gas. That is, in the cyclone 21, the solid-gas separation space 21a is supplied with a gas such as the carrier air 65 from the ice and snow 60 that is pressure-fed by the carrier air 65 in the carrier space 30a of the ice-and-snow pumping pipe 30.
The solid particles are formed so that they can form a swirling flow so that they can be separated by centrifugal force. In addition, on the upper side surface of the cyclone 21, the inlet 2
1b is formed, that is, the cyclone 21 is provided with an inflow port 21b so that the ice and snow 60 pressure-fed by the carrier air 65 can be taken into the solid-gas separation space 21a together with the carrier air 65. Further, below the cyclone 21, an ice and snow discharge port 21c is provided so as to open downward (downward in the figure), that is, the cyclone 2
1, the ice and snow discharge port 21c is provided so that solid particles such as ice and snow 60 separated by the cyclone 21 can be discharged to the outside. Further, the cyclone 21 is provided with an air extraction pipe 23 for taking out a gas such as the carrier air 65 separated by the cyclone 21 so as to penetrate the upper portion of the cyclone 21 through the center of the cyclone 21. An extraction port 23a and an air supply port 23b are formed at the end of the air extraction pipe 23, respectively. Of these, the extraction port 23a of the air extraction pipe 23 opens downward (downward in the figure) in the solid-gas separation space 21a of the cyclone 21, and the extraction port 23a is the inflow port 2 of the cyclone 21.
It is formed below 1b. In addition, the air extraction pipe 2
The portion where 3 penetrates the cyclone 21 is provided so as to penetrate while maintaining an airtight state.

That is, each take-out branch pipe 31 of the ice and snow pumping pipe 30,
The outlets 31a, 32a, 33a of the units 32, 33 have the structure shown in FIG.
As shown in, the inflow port 21b of the ice and snow separation device 20 is connected, and the transport space 30a of the ice and snow pressure supply pipe 30 and the solid gas separation space 21a of the cyclone 21 of the ice and snow separation device 20 communicate with each other. On the other hand, the intake port 35a of the cold insulation pipe 35 is connected to the air supply port 23b of the air extraction pipe 23 of the ice and snow separation device 20, and the cold insulation space 36 and the solid-gas separation space 21a of the cyclone 21 are connected to the air extraction pipe. It is communicated via 23.
Therefore, the transport space 30a and the cold storage space 36 are connected to each other via the ice and snow separation device 20, that is, via the solid gas separation space 21a of the cyclone 21 and the air extraction pipe 23.

Since the ice and snow spraying equipment 100 to which the ice and snow transport equipment 15 according to the present invention is applied has the above-described structure, the ice and snow spraying equipment 100 allows the slope 7 of a ski resort to run.
When the ice and snow 60, which is artificial snow, is sprayed on 0, the ice and snow 60 is first manufactured by the ice and snow manufacturing apparatus 10 of the ice and snow spraying equipment 100. That is, the water 61 stored in the water storage tank 11 of the ice and snow manufacturing apparatus 10 shown in FIG. 1 is supplied to the refrigerator 12 by operating a pump or the like (not shown). Then, the water 61 supplied to the refrigerator 12 is manufactured into small-sized ice and snow 60 in the refrigerator 12, and is transported to the ice storage 13 to store ice.
Next, the small-sized ice-snow 60 stored in the ice storage 13 of the ice-snow manufacturing device 10 is conveyed to the ice-snow feeder 3 by a conveyor (not shown), and the ice-snow pressure-feeding device 1 receives the conveyed small-lumps of ice 60. , Through the ice and snow feeder 3.

Further, the blower 2 of the ice and snow pumping device 1 is driven to suck the outside air 64, which is the outside air, into the intake pipe 6 through the air filter 9, and is compressed and formed as the carrier air 65. The carrier air 65 compressed and formed by the blower 2 is supplied to the ice and snow feeder 3 through 7. In addition,
The carrier air 65 passing through the air supply pipe 7 is adiabatically compressed by the blower 2 and is heated, but is returned to the temperature before being sucked by the heat exchanger 5 such as an intercooler and supplied to the ice and snow feeder 3 to be supplied to the ice and snow feeder. In 3, the small lumps of ice and snow 60 and the carrier air 65 are mixed. Then, the small-sized ice and snow 60 mixed with the transport air 65 is transported in the ice-snow transport direction (the arrow A direction) in the transport space 30a of the ice-snow pumping pipe 30 of the ice-snow transport facility 15 in a form of being pumped to the transport air 65. By repeatedly colliding with the inner surface of the ice and snow pressure-feeding pipe 30 many times during the pressure-feeding, the ice-snow-pressure-feeding pipe 30 is crushed into small pieces, and is sent to the slope 70 through the ice-and-snow pressure-feeding pipe 30. In this way, the ice and snow 60 pressure-fed by the carrier air 65 to the spraying areas 71, 72, 73 of the slope 70, together with the carrier air 65, the ice and snow removing parts provided in the spraying areas 71, 72, 73. 16, 17, 18 ice and snow extraction branch pipes 31, 32,
From the take-out ports 31a, 32a, 33a of 33 to the solid-gas separation space 21a of the cyclone 21 of the ice-and-snow take-off branch pipe 31, 32, 33 provided in each of the ice and snow take-out branch pipes 31, the inflow port 21b.
Flows in through.

Ice and snow 60 that has flowed into the solid-gas separation space 21a of the cyclone 21 of the ice and snow separation device 20 together with the carrier air 65.
2 forms a swirling flow in the solid-gas separation space 21a as shown by the chain double-dashed line in FIG. 2, and the ice and snow 60 is collected on the inner surface of the cyclone 21 by the centrifugal force. Are separated. That is, the ice and snow 60 falls while rotating in the solid-gas separation space 21a of the cyclone 21 and is discharged to the slope 70 from the ice and snow discharge port 21c. Then, these small pieces of ice and snow 60 discharged from the ice and snow discharge port 21c are dispersed in the spraying areas 7 of the slope 70.
It is possible to form a snowy slope 70 suitable for skiing by skiing the snow on the skis 1, 72, 73.

On the other hand, the carrier air 65 separated from the ice and snow 60
Is activated by operating the exhaust fan 38 of the ice-and-snow separation device 20, and in addition to the pressure of the carrier air 65, it is sucked by the exhaust fan 38 and passes through the extraction port 23a of the air extraction pipe 23 to generate solid gas. Taken out from the separation space 21a,
It flows from the air supply port 23b of the air extraction pipe 23 into the cold insulation space 36 through the intake port 35a of the cold insulation pipe 35. by the way,
The carrier air 65 separated from the ice and snow 60 is cooled while the ice and snow 60 is being pressure-fed in the ice-and-snow pressure-feeding pipe 30, and has a temperature lower than that of the outside air 64 or the like which is the outside air. Therefore, the carrier air 65 flowing into the cold insulation space 36 of the cold insulation pipe 35
Flows in the anti-ice and snow conveyance direction (the direction of arrow B) while cooling the ice and snow pumping pipe 30. Then, the carrier air 65 flows in the anti-icy snow carrier direction (direction of arrow B), and the cold insulation pipe 3 shown in FIG.
When reaching the exhaust port 35b of No. 5, the carrier air 65 which has finished the heat exchange with the ice and snow pressure-feeding pipe 30 and the like in the form of cooling the ice-and-snow pressure-feeding pipe 30 in the cold storage space 36 is exhausted as shown in FIG. It is discharged from the mouth 35b to the outside through the exhaust fan 38.
That is, since the exhaust port 35b is provided on the ice and snow feeder 3 side of the cold insulation pipe 35, the carrier air 65 cooled by the ice and snow 60 while the ice and snow 60 is being pressure-fed in the ice and snow pressure-feeding pipe 30 is supplied to each of the ice and snow take-out portions 16, 17. , 18 when separated by the ice and snow separation device 20, the cold storage space 36 is passed through the air extraction pipe 23.
Flow into the cooling pipe 35 from the intake 35a to the exhaust port 35
A flow is formed toward b (direction of arrow B), that is, the cooled carrier air 65 can be supplied to the cold storage space 36, so that the ice and snow pumping pipe 30 can be cooled as a whole.

As described above, the ice and snow pressure-feeding pipe 30 is insulated from the outside air by the cold insulation space 36 formed between the outer peripheral surface 30d of the ice and snow pressure-feeding pipe 30 and the inner peripheral surface 35c of the cold insulation pipe 35. Not only that, each ice and snow extraction section 1 of the ice and snow pressure feed pipe 30
At 6, 17, and 18, the ice and snow 6 is pressure-fed in the transfer space 30a by the cyclone 21 of the ice and snow separation device 20.
The transport air 65 cooled by the ice and snow 60 during transport is separated from 0, and the cold storage space 3 is separated via the air extraction pipe 23.
6, the ice-and-snow pressure-feeding pipe 30 is supplied to the cold storage space 3
It is cooled by the carrier air 65 supplied to the unit 6. Therefore, on the way of sending ice and snow 60 to the slope 70,
Not only is the ice-and-snow pressure-feeding pipe 30 not warmed by the outside air, but also the frictional heat generated when the ice-and-snow 60 comes into contact with the inner surface of the ice-and-snow pressure-feeding pipe 30 is cooled, so that the ice-and-snow pressure-feeding pipe 30 is cooled.
The ice and snow 60 that is pumped inside is less likely to melt, and almost all of the ice and snow 60 supplied from the ice and snow manufacturing apparatus 10 is finally conveyed to the slope 70 in the form of the ice and snow 60, and the slope 70
The efficiency of transporting the ice and snow 60 is improved. In addition, the ice / snow 60 is sprayed onto the slope 70, and the carrier air 65 cooled by the ice / snow 60 during the ice / snow transport is supplied to the cold storage space 36 by the ice / snow separator 20. , Cooling the ice and snow pumping pipe 30
Since it is also used to improve the transport efficiency of 0, it is possible to effectively use the transport air 65 for ice and snow transport cooled by the ice and snow 60. Therefore, it is possible to effectively utilize the carrier air 65 for transporting ice and snow cooled by the ice and snow 60, and efficiently transport the ice and snow 60 that is artificial snow to the ski slope 70.

In addition, substantially all of the ice and snow 60 produced and stored in the ice making device 10 does not melt, and the slope 7 can be efficiently used.
Since it is conveyed to 0, a large amount of ice and snow 60 can be sprayed on the slope 70 in a short time, and the slope 70 of snow quality suitable for skiing can be efficiently formed. In the above-described embodiment, the carrier air 65 cooled by the ice and snow 60 is discharged to the outside from the exhaust port 35b. However, the exhaust port 35b and the ice and snow feeder 3 are connected via a pipe or the like, and the exhaust port The carrier air 65 discharged from 35b may be reused for ice and snow pressure supply.

Further, in the above-described embodiment, the ice and snow separation device 20 uses the cyclone 21 that can be solid-air separated by utilizing the centrifugal force, and solid particles such as ice and snow 60 and the carrier air 65 that pressure-feeds the solid particles. However, it is sufficient that the solid particles and the gas can be separated, and the solid gas may be mechanically separated by a screen or the like. For example, another ice-snow separation device 20A is a solid-gas separation container 2 as shown in FIG.
5, the solid-gas separation container 25 has a pressure release space 25a formed therein. An inflow port 25b is formed on the left side surface of the solid-gas separation container 25 in the drawing, and an ice and snow discharge port 25c opens downward (downward in the drawing) below the solid-gas separation container 25. It is provided in the shape. An air outlet 25d is formed above the solid-gas separation container 25, and the pressure release space 25 of the solid-gas separation container 25 is formed.
A screen 26 such as a sieve is provided at a.
In addition, the ice and snow discharge port 25c and the air outlet 25d are provided so as to be separated from each other. The mesh of the screen 26 is smaller than the particle size of the ice and snow 60, and is set so that the carrier air 65 can flow. Further, an air extraction pipe 23A is connected to the solid-gas separation container 25 in such a manner that the extraction port 23Aa of the air extraction pipe 23A and the air extraction port 25d of the solid-gas separation container 25 are in communication with each other. An air supply port 23Ab is formed at the other end of the pipe 23A.

That is, each take-out branch pipe 31 of the ice and snow pumping pipe 30,
The outlets 31a, 32a, 33a of the units 32, 33 have the structure shown in FIG.
As shown in FIG. 5, the inflow port 25b of the ice-snow separating device 20A is connected, and the transfer space 30a of the ice-snow pumping pipe 30 and the pressure release space 25 of the solid-gas separation container 25 of the ice-snow separating device 20A are connected.
a is communicated with. On the other hand, the intake port 35a of the cold insulation pipe 35 is connected to the air supply port 2 of the air extraction pipe 23A of the ice and snow separation device 20A.
3Ab is connected, and the cold storage space 36 and the pressure release space 25a of the solid-gas separation container 25 are communicated with each other via the air extraction pipe 23A. Therefore, the transfer space 30a and the cold storage space 36 are connected via the ice and snow separation device 20A, that is, the pressure release space 25a of the solid-gas separation container 25 and the air extraction pipe 23.
They are connected to each other through A.

Therefore, the ice and snow 60 pressure-fed by the carrier air 65 through the ice-and-snow pumping pipe 30 to the spraying areas 71, 72, 73 of the slope 70, together with the carrier air 65, is distributed to the spraying areas 71, 72, 73. From each of the provided ice and snow extraction pipes 16, 17, 18 of the ice and snow extraction branch pipes 31, 32, 33 of the outlet 31a, 32a, 33a, the ice and snow extraction branch pipe 3 of each.
It is jetted through the inflow port 25b into the pressure release space 25a of the solid-gas separation container 25 of the ice and snow separation device 20A provided in Nos. 1, 32, and 33. The ice and snow 60 jetted together with the carrier air 65 into the pressure release space 25a of the solid-gas separation container 25 of the ice and snow separation device 20A collides with the screen 26 and drops in the pressure release space 25a, and the slope 70 from the ice and snow discharge port 25c. Is discharged to. Then, the small pieces of ice and snow 60 discharged from the ice and snow discharge port 25c are removed from the slope 7
It is possible to form a snowy slope 70 suitable for skiing by skiing by spraying snow on each of the spraying areas 71, 72, 73 of 0. The carrier air 65 jetted into the pressure release space 25a together with the ice and snow 60 is reduced in pressure in the pressure release space 25a, and thus the ice and snow 60 is released.
Is slowed down, the force with which the ice and snow 60 collides with the screen 26 is small, and it is possible to avoid blocking the mesh of the screen 26. On the other hand, the carrier air 65 separated from the ice and snow 60 is
By operating the exhaust fan 38 of the ice and snow separation device 20, even after the pressure is reduced in the pressure release space 25a, the exhaust fan 38 passes through the screen 26 in the form of being sucked, and the air outlet 25d and the air are discharged. Extraction pipe 23
It is taken out of the pressure release space 25a through the extraction port 23Aa of A and flows into the cold storage space 36 from the air supply port 23Ab of the air extraction pipe 23A through the intake port 35a of the cold insulation pipe 35. Therefore, it becomes possible to supply the carrier air 65 cooled by the ice and snow separation device 20A during the ice and snow 60 pressure feeding to the cold storage space 36, and the ice and snow pressure feeding pipe 30 through the carrier air 65.
Thus, the carrier air 65 can be effectively used. Therefore, it is possible to effectively utilize the carrier air 65 for transporting ice and snow cooled by the ice and snow 60, and efficiently transport the ice and snow 60 that is artificial snow to the ski slope 70.

[0026]

As described above, the first aspect of the present invention
The invention of claim 1 has an ice and snow pumping pipe such as an ice and snow pumping pipe 30 in which an ice and snow transporting space such as a transporting space 30a in which ice and snow such as ice and snow 60 is pumped by carrier air such as carrier air 65 is formed. The ice-and-snow pressure-feeding pipe is connected to the first to n-th ice-and-snow take-out parts 16, 1.
A cyclone 21 and a screen 26 capable of separating air and snow from the ice and snow delivery space of the ice and snow delivery pipe of the ice and snow delivery section of the ice and snow pumping pipe.
An ice / snow separating means such as the
The cold insulation pipes such as 5 are provided in such a manner that a cold insulation space such as a cold insulation space 36 is formed between an inner surface such as an inner peripheral surface 35c of the cold insulation pipe and an outer surface such as an outer peripheral surface 30d of the ice and snow pumping pipe. The separating means is provided with an air take-out pipe such as an air take-out pipe 23 for taking out the carrier air separated by the ice-and-snow separating means, and the air take-out pipe and the cold insulation pipe are communicated with each other. Configured by connecting with.

The second aspect of the present invention is the cyclone 21 according to the first aspect, wherein the ice / snow separating means can separate the carrier air from the ice / snow being pressure-fed in the ice / snow carrying space of the ice / snow pumping pipe. Configured to consist of a cyclone and so on.

A third aspect of the present invention is the screen 26 according to the first aspect, wherein the ice / snow separating means can separate the carrier air from the ice / snow sent under pressure in the ice / snow carrying space of the ice / snow pumping pipe. Since it was configured to consist of screens such as

The ice-and-snow pressure-feeding pipe is not only insulated from the outside air by the cold insulation space, but also the carrier air separated by the ice-snow separating means in the ice-and-snow extraction portion of the ice-and-snow pressure supply pipe is kept cool through the air extraction pipe. By being supplied to the cold storage space, it is possible to supply the carrier air cooled by the ice and snow to the cold insulation space during the ice and snow compression, so that the ice and snow pressure supply pipe is cooled by the cooled carrier air supplied to the cold insulation space. Therefore, the ice-and-snow pressure-feeding pipe is not warmed by the outside air while the ice-and-snow pressure-feeding pipe is being pressure-fed to the slope, and the frictional heat generated by the contact of the ice-and-snow with the inner wall of the ice-and-snow pressure-feeding pipe is also cooled. The ice and snow sent under pressure is less likely to melt, and almost all of the ice and snow supplied from the ice and snow manufacturing device is finally transferred to the slope in the form of ice and snow, and the efficiency of transferring the ice and snow to the slope is improved. In addition, the ice-snow pressure-feeding pipe is cooled by supplying the ice-snow separating means with the carrier air cooled by the ice-snow during the ice-snow transport that was conventionally released to the atmosphere while spraying the ice-snow on the slopes. Since it is also used to improve the transportation efficiency of ice and snow, the transport air cooled by ice and snow can be effectively used. Therefore, it is possible to effectively utilize the carrier air cooled by the ice and snow and efficiently carry the ice and snow as artificial snow to the slopes of the ski resort.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an embodiment of ice and snow spraying equipment to which the ice and snow transport equipment according to the present invention is applied.

FIG. 2 is a perspective view showing details of an ice-snow separating device of the ice-snow carrying facility shown in FIG.

FIG. 3 is a cross-sectional view showing another example of the ice and snow separation device shown in FIG.

[Explanation of symbols]

 16: Ice and snow removal part (first ice and snow removal part) 17: Ice and snow removal part (second ice and snow removal part) 18: Ice and snow removal part (nth ice and snow removal part) 21: Ice and snow separation means (cyclone) 23 ... … Air extraction pipe (air extraction pipe) 26 …… Snow and ice separation means (screen) 30 …… Snow and ice pressure feeding pipe (ice and snow pressure feeding pipe) 30a …… Ice and snow transportation space (transportation space) 30d …… Outer surface (outer peripheral surface) 35 …… Cooling pipe (cooling pipe) 35c …… Inner surface (inner peripheral surface) 36 …… Cooling space (cooling space) 60 …… Snow and ice (frost and snow) 65 …… Transport air (transport air)

Claims (3)

[Claims] 1. An ice-snow pumping pipe having an ice-snow transporting space in which ice-snow is pumped by carrier air is formed. An ice-snow removing part is provided in the ice-snow pumping pipe, and an ice-snow removing part of the ice-snow pumping pipe is provided. The ice-snow separating means capable of separating the carrier air from the ice-snow that is pressure-fed through the ice-snow transport space is provided with the ice-snow pressure-feeding pipe, and a cold insulation pipe is provided between the inner surface of the cold-insulation pipe and the outer surface of the ice-snow pressure-feeding pipe. Provided in the form of forming a cold storage space, the ice and snow separation means, an air extraction pipe for taking out the carrier air separated by the ice and snow separation means, the air extraction pipe and the cold insulation pipe, the air extraction pipe and the Ice and snow transportation equipment configured by connecting in a cold storage space. 2. The ice-and-snow transport facility according to claim 1, wherein the ice-and-snow separator comprises a cyclone capable of separating the transport air from the ice-and-snow being pressure-fed in the ice-and-snow transport space of the ice-and-snow pumping pipe. 3. The ice-and-snow transport facility according to claim 1, wherein the ice-snow separator comprises a screen capable of separating the transport air from the ice-and-snow being pressure-fed in the ice-snow transport space of the ice-snow pumping pipe.