JPH11294914A - Artificial snow-making device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the need for a large installation space and to prevent dehydration failure from occurring, by crushing original ice formed in a plate shape by an ice-making part in ice mass shape by a primary ice-crushing machine, and carrying it to an ice-scattering part by a carrying device, crushing it in an ice particle shape by a secondary ice-crushing machine and scattering the ice. SOLUTION: In an artificial snow-making device 1, an ice-making room 2a of an ice-making part 2 and a condenser 4 are arranged at an upper part and a machine room 3 is arranged at a lower part, and then a plurality of ice-making rooms 2a are provided. An ice-scattering part 8 for feeding raw ice that is made by the ice- making room 2a and is crushed into an ice particle shape to a snow gun or the like, a carrying device 31 for carrying the raw ice to the ice-scattering part 8, a compressor 6 of the ice-making part 2, an operator's panel 9 or the like for operating the artificial snow-making device are provided in the machine room 3. Then, ice is made from raw water in the ice-making room 2a, the ice is crushed roughly into a mass of ice and then is carried to the ice-scattering part 8 by the carrying device 31, the ice is further crushed into ice mass shape by the ice-scattering part 8, is sent to a snow gun or the like from an ice-scattering exit 5, and is scattered to a ski slope or the like from the snow gun or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial snowmaking apparatus for crushing raw ice made from ice and then scattering the ice on, for example, a ski slope to make artificial snow snow.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Application Laid-Open No.
As disclosed in Japanese Patent No. 63, an artificial snowmaking apparatus is known which transports raw ice produced in an ice making section to an ice spreading section, crushes the ice, and spreads ice from a snow gun. The crushed raw ice was once stored in an ice storage, and then sent to a snow gun or the like and spread as required.

[0003] The raw ice in the artificial snowmaking apparatus cools, for example, a flat ice-making plate disposed in an ice-making section to a low temperature and supplies water downward from the upper end of the side wall of the ice-making plate. Then, the water adhering to the side wall was frozen to form a plate. After the original ice was formed, the ice making plate was warmed, and hot water was poured into the interface between the side wall of the ice making plate and the original ice, thereby deicing the original ice from the side wall and performing de-icing. The ice is configured to fall to an ice storage or the like located below, and the original ice is broken by the impact of the fall. Further, there is also an ice-making plate on which the original ice is formed, which has a substantially cylindrical shape and forms the original ice along the outer peripheral wall of the ice-making plate in the same manner as described above,
In this case, the original ice formed on the outer peripheral wall is scratched by a claw member or the like, so that the ice is crushed and deiced, and the ice is dropped downward.

[0004]

However, such an artificial snow making apparatus requires a large installation space because an ice storage for temporarily storing crushed raw ice is installed, and the ice storage is cooled. Power consumption has increased.
In addition, for the type of ice-breaking without ice storage, the ice-making plate was warmed, and warm water was poured into the interface between the side wall of the ice-making plate and the raw ice for deicing. In order to arrange ice-making plates side by side, it is necessary to increase the distance between the ice-making plates so that hot water does not splash on the surface of the original ice formed on the adjacent ice-making plates. I was

[0005] Further, since the room temperature in the ice making section in which the ice making plate is provided changes depending on the outside air temperature, for example, when the outside air temperature becomes too low, the original ice does not peel off from the ice making plate and the ice is removed. If the ice making plate is not supplied uniformly during ice making, it may not be possible to peel off the thick part of the original ice from the ice making plate at the time of de-icing, which may cause poor de-icing. there were.

[0006] Further, since the breaking of the original ice is performed only by the impact at the time of falling, the size of the ice pieces after the ice breaking becomes too large and uneven, and the ice pieces are removed from the artificial snow making apparatus. It is not appropriate to send ice directly to a snowgun and spread ice, or the size of ice pieces cannot be controlled, and snow cannot be melted so that it will not melt easily according to weather conditions and slope conditions Was.

In the case where the ice making plate has a cylindrical shape,
Since the original ice formed on the outer peripheral wall is mechanically scratched to perform deicing and crushing ice, the thickness of the original ice cannot be increased so much that ice pieces after crushing ice are easily melted. In addition, since the temperature of the ice making plate at the time of ice making had to be considerably lower than that of the flat ice making plate, the power consumption was large.

[0008]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in claim 1, in an artificial snowmaking apparatus for transferring the original ice produced in the ice making unit to the ice spreading unit, crushing the ice, and then spreading the ice, the original ice formed in a plate shape in the ice making unit is provided by: The primary ice crusher breaks the ice into ice blocks, transports the ice blocks to the ice spreader by the transport device, and crushes the ice blocks transferred to the ice spreader into ice particles by the secondary ice breaker and spreads the ice. And defrosting the raw ice by raising the temperature of an ice making plate on which the raw ice is formed.

According to a second aspect of the present invention, there is provided an artificial snowmaking apparatus for transferring raw ice produced in an ice making section to an ice spreading section, crushing the ice, and then spreading the ice, wherein a side wall of the ice making plate on which the original ice is formed. Is configured so that water is supplied uniformly to the inside of the side wall.

According to a third aspect of the present invention, there is provided an artificial snowmaking apparatus for transferring raw ice made in the ice making section to the ice spreading section, crushing the ice, and then scattering the ice. Is controlled within a preset temperature range.

According to a fourth aspect of the present invention, there is provided an artificial snowmaking apparatus for transferring raw ice produced in an ice making section to an ice spreading section, crushing the ice, and then scattering the ice. Is adjustable.

According to a fifth aspect of the present invention, there is provided an artificial snowmaking apparatus for transferring raw ice produced in an ice making section to an ice spreading section, crushing the ice, and then scattering the ice. Is adjustable, and the particle size of the ice particles can be changed over time and automatically.

[0013]

Next, an embodiment of the present invention will be described. FIG. 1 is a front view showing an artificial snow making apparatus of the present invention, and FIG.
Is also a rear view, FIG. 3 is a left side view, FIG. 4 is a right side view, FIG. 5 is a plan view, FIG. 6 is a side view showing the inside of an ice making room, and FIG. 7 is raw ice on both side walls of an ice making plate. 8, FIG. 8 is a perspective view, FIG. 9 is a plan view showing the interior of the ice making chamber, FIG. 10 is a front view showing the interior of the machine room, FIG. 11 is a plan view, and FIG. FIG. 13 is a side view showing an AA side in FIG. 10, FIG. 14 is a side view showing a secondary crusher, FIG.
FIG. 17 is a plan view showing an ice spread outlet, FIG. 17 is a side view showing a snow-covered state when ice is spread by the artificial snow making apparatus, and FIG. 18 is a view showing electric wiring of a secondary crusher.

First, a schematic configuration of the artificial snowmaking apparatus of the present invention will be described. 1 to 5, the artificial snowmaking apparatus 1 has an ice making chamber 2a, a condenser 2 of the ice making section 2 and a condenser 4 at an upper part, and a machine room 3 at a lower part. A plurality (three in the present embodiment) of the ice making chambers 2a are provided, and inside the machine room 3 to be described later, raw ice made in the ice making chamber 2a is crushed into ice particles, and then a snow gun or the like is provided. Unit 8 for transporting raw ice to the ice spreading unit 8
1, a compressor 6 of the ice making unit 2, an operation panel 9 for operating an artificial snow making device, and the like are provided. And the ice making room 2a
The raw ice is made in 2a..., The raw ice is coarsely crushed into ice, and then transported to the ice-spreading unit 8 by the transport device 31. As shown in FIG. 1, the ice is discharged from the ice spreading outlet 5 to a snow gun or the like, and the ice is spread from the snow gun or the like to a slope or the like. The ice making unit 2 includes the ice making chambers 2a, a condenser 4, a compressor 6, and a liquid receiver 7 installed in the machine room 3.
And so on.

Next, a description will be given of an ice making system in the present artificial snow making apparatus 1 from the ice making to the scattering of crushed ice particles. First, ice making is performed in the ice making chamber 2a of the ice making unit 2 shown in FIGS. A plurality of ice making plates 11 are provided in the upper part in the ice making chamber 2a.
Are arranged above the water supply pipes 1. The water tanks 13, 13 for storing water supplied from the outside of the ice making chamber 2a are disposed below the ice making plates 11, 11,..., And the water tanks 13, 13, and the ice making plates 11, 11,. The ice collecting plates 15, 15 formed in a net shape are interposed between them. The ice collecting plates 15, 15 are inclined downward from the left and right ends toward the center, and a substantially semi-cylindrical collecting opening with an open upper portion is provided between the left and right ice collecting plates 15 and 15. An ice tube 16 is provided, and a screw conveyor 17 is provided in the ice collecting tube 16. Further, a shielding plate 18 is provided between the ice making plates 11, 11... And the ice collecting plates 15, 15 at substantially the center of the ice making chamber 2a on the left and right sides, and the shielding plate 18 swings about a fulcrum 18a. It is configured to be movable.

The ice making plate 11 is formed in a flat plate shape, and a refrigerant pipe is entirely piped therein. At the time of ice making, a refrigerant which has been decompressed and has a low evaporation temperature flows through the refrigerant pipe. The side walls 11a of the plate 11 are, for example,
It is cooled to a low temperature of about −14 ° C. to −16 ° C. The water stored in the water tank 13 is pumped up by the pump 14 and sent out to each of the water supply pipes 12, 12..., And the water is showered from the shower holes 12a, 12a. Released, both side walls 11a of the ice making plate 11
-Water is supplied to the upper end of 11a. The water supplied to the upper end of the side wall 11a flows downward along the side wall 11a,
It is cooled while flowing and a part thereof freezes on the side wall 11a. The water that has flowed along the side wall 11a and did not freeze falls below the ice making plate 11, passes through the ice collecting plate 15, and returns to the water tank 13. Thus, both side walls 11a of the ice making plate 11
As the water supply to 11a is continued, the ice layer formed by freezing on the side wall 11a increases in thickness, and as shown in FIGS. Ice 19
19 is formed.

When the raw ice 19 formed on the side wall 11a reaches a certain thickness, or when the ice making state elapses for a certain time, the water supply from the water supply pipe 12 is stopped, and the refrigerant pipe inside the ice plate 11 is The refrigerant, which has been compressed by the compressor 6 disposed in the machine room 3 and has a high temperature, flows. Then, the ice making plate 11
Since both side walls 11a become hot, the side walls 11a
a expands, the contact surface of the original ice 19 with the side wall 11a melts, whereby the original ice 19 frozen on the side wall 11a separates from the interface between the original ice 19 and the side wall 11a and moves downward. To fall. That is, by raising the temperature of the side wall 11a, the original ice 19 formed on the side wall 11a is de-iced. Then, when the temperature of the side wall 11a is raised for a certain period of time and deicing is completed, the decompressed refrigerant flows through the refrigerant pipe in the ice making plate 11 again to cool the side walls 11a. Thus, both side walls 11a of the ice making plate 11
The deicing of the raw ice 19 by raising the temperature of 11a can reduce the gap between the plurality of ice-making plates 11 arranged in parallel, thereby making the ice-making chamber 2a compact and saving space. Therefore, the maintenance space 10 can be provided in an extra space.

However, raw ice 19 formed on the side wall 11a
If the thickness is uneven, the side wall 11a
There is a case where a portion where the raw ice 19 does not peel off from the side wall 11a occurs during the time when the raw ice 19 is heated, and the raw ice 19 does not fall, resulting in poor deicing. Thus, the artificial snowmaking apparatus 1 is configured as follows in order to form the raw ice 19 uniformly. That is, a shower hole 12 of a water supply pipe 12 for supplying water to both side walls 11a of the ice making plate 11 in a shower shape.
are formed when forming the shower holes 12a.
With the formation of a, the so-called burrs and burrs protruding from the peripheral portion of the shower hole 12a are completely removed, and the amount of water jetted from the shower hole 12a, the degree of diffusion and the jetting direction,
The uniformity is provided between the shower holes 12a. Further, the ice making plate 11 to which water is supplied is installed vertically so that the amount of water flowing along the side walls 11a is uniform at each part of the side walls 11a. With this configuration, the original ice 19 having a uniform thickness can be formed on both side walls 11a of the ice making plate 11.

The ambient temperature inside the ice making chamber 2a is affected by the temperature of the outside air. However, if the outside air temperature becomes too low, the atmospheric temperature inside the ice making chamber 2a also drops, and the side wall of the ice making plate 11 is removed during deicing. Even if the temperature of 11a is increased, the raw ice 19
In some cases, it does not melt at the interface with a and does not peel off from the side wall 11a, resulting in poor deicing. Therefore, in the present artificial snowmaking apparatus 1, the ambient temperature in the ice making chamber 2a is controlled to be within a preset temperature range, so that the deicing defect does not occur. That is, the temperature sensor 22 is installed in the ice making room 2a to detect the ambient temperature in the ice making room 2a.
The temperature of the atmosphere in the machine room 3 is relatively high due to the heat generated by the compressors 6, 6,... Of the ice making unit 2 installed in the machine room 3.

When the temperature of the atmosphere in the ice making chamber 2a detected by the temperature sensor 22 is lower than a predetermined temperature range, warm air in the machine room 3 is disposed in the machine room 3. Ventilation duct 2 by duct fan 24
3 and is guided into the ice-making chambers 2a, 2a,..., And the air is blown from the air outlet 23a opened in each ice-making chamber 2a. This air blowing is continued until the ambient temperature in each ice making chamber 2a reaches a preset constant temperature. Thus, the ambient temperature in the ice making chamber 2a is controlled, for example, within a range of about 5 ° C. The duct fan 24 is controlled so that the number of revolutions changes in accordance with the difference between the ambient temperature in the ice making chamber 2a and the set temperature value. Is blown into the ice making chamber 2a. When the ambient temperature in the machine room 3 is lower than a preset temperature, the temperature is controlled to be heated by the heater 25 attached to the air duct 23 and then blown into the ice making chamber 2a.

As described above, by blowing the air into the ice making chamber 2a using the warm air in the machine room 3, the temperature of the atmosphere inside the ice making chamber 2a can be kept within a certain range with a simple mechanism and at low cost. It controls and prevents the occurrence of defective deicing.
In this embodiment, the temperature sensor 22 installed in the ice making chamber 2a is installed at only one place because the insides of the ice making chambers 2a communicate with each other. In the case where it is not performed, it may be installed in each ice making chamber 2a.

The ice making plate 11 of the artificial snow making apparatus 1
For example, ice making is performed by cooling to a low temperature of about −14 ° C. to −16 ° C., but the conventionally used ice making plate is formed into a substantially cylindrical shape, and raw ice is formed along the outer peripheral wall of the ice making plate. In order to make ice, it is necessary to cool the ice making plate to a lower temperature than the ice making plate 11 of this embodiment, for example, to about -32 ° C. Power consumption can be reduced. Further, in the case of an ice making plate having a substantially cylindrical shape, the original ice was deiced by the claw member, so that the thickness of the original ice had to be reduced. As described above, when the ice making plate 11 is formed into a flat plate shape to form plate-shaped raw ice and the ice making plate 11 is defrosted by increasing the temperature, it is possible to form thicker raw ice than in the case described above.
This makes it possible to obtain ice particles that are hardly melted when the original ice is crushed into ice particles.

On the other hand, the raw ice 19 that has fallen downward as described above.
Is guided to the ice collecting tube 16 by the ice collecting plates 15. At this time, the original ice 19 is crushed to a certain size by the impact of the fall and collected in the ice collecting tube 16. After the crushed raw ice 19 is collected in the ice collecting tube 16, it is conveyed forward (downward in FIG. 9) by the screw conveyor 17 and passes through the primary crusher 20 which is the primary ice making unit. It falls into the machine room 3 arranged below through the communication port 21. As shown in FIG. 10, the primary crusher 20 is formed by assembling blade-like members in a lattice shape. When the raw ice 19 is conveyed by the screw conveyor 17 and passes through the primary crusher 20, The primary crusher 20 is crushed into ice blocks having the size of a lattice.

FIGS. 10 to 13 show the inside of the machine room 3. The machine room 3 is composed of a container or the like, and the ice making room 2a, the condenser 4 and the like are arranged on the upper surface of the machine room 3, so that the entire artificial snowmaking apparatus 1 can be easily transported by truck or installed. It is compact as a unit type. In the machine room 3, the compressors 6, 6,..., The liquid receivers 7, 7,.
1, an ice spreader 8, an operation panel 9 and the like are provided, and the compressors 6, 6,... And the liquid receivers 7, 7,.
・ 2a... Are provided in the same number. The space inside the machine room 3 other than the portion where each device is installed, and the portion of the upper surface of the machine room 3 other than the portion where the ice making room 2a and the like are installed are a maintenance space 10. The ice spreader 8 includes a hopper 32, a rotary valve 33, and a blower 3.
4, an air cooler 37, a secondary crusher 40 as a secondary ice crushing unit, and the like.

The ice blocks formed by crushing the original ice 19 made in the ice making chambers 2a, 2a,... By the primary crusher 20 are passed through the communication ports 21 of the respective ice making chambers 2a.
.. Enter the transfer device 31 from each of the inlets 31a, and are transferred to the discharge port 31b by a screw conveyor disposed inside the transfer device 31. The ice blocks conveyed to the discharge port 31b fall downward and fall into the hopper 32.
After that, it is conveyed in the direction of the secondary crusher 40 by a fixed amount by a rotary valve 33 arranged below the hopper 32.

The rotary valve 33 has a blower 3
The compressed air compressed by 4 is pumped and flows in the direction of the secondary crusher 40. The blower 34 takes in air outside the machine room 3 from the air inlet 35 and compresses it.
The compressed compressed air is passed through a pipe 36 to an air cooler 37.
Guided to. The compressed air that has been heated to a high temperature by being compressed is cooled by the air cooler 37, and then is pressure-fed into the rotary valve 33 through a pipe 39. As described above, the compressed air that is pressure-fed into the rotary valve 33 by the blower 34 is cooled by the air cooler 37, so that ice blocks conveyed in the rotary valve 33 are not melted.

The ice block conveyed in the direction of the secondary crusher 40 in the rotary valve 33 is conveyed to the secondary crusher 40 through the pressure pipe 41 by the flow of compressed air by the blower 34. The ice blocks transported to the secondary crusher 40 shown in FIGS.
Riding on the flow of compressed air from the crusher, the crushed ice is transported in the ice breaking passage 51 toward the ice spreading outlet 5 and reaches the ice breaking portion 51 a in the middle of the ice breaking passage 51.

A hammer crusher 52 is provided above the ice crushing portion 51a in the ice crushing passage 51, and a particle size adjusting plate 53 is provided below the hammer crusher 52. The hammer crusher 52 is configured by attaching a plurality of hammer members 52a, 52a,. The hammer crusher 52
Is rotated at an appropriate speed by a motor 56. The particle size adjusting plate 53 is configured to be rotatable about a fulcrum 53a, and is rotated up and down by an up and down movement of an adjusting pin 57 that is in contact with the lower surface of the particle size adjusting plate 53. The adjusting pin 57 is configured to move up and down by a stepping motor 55. The lower end of the hammer member 52a located at the lower end of the hammer crusher 52 and the lower end of the particle size adjusting plate 5
3 can be set to an appropriate size.

The ice blocks reaching the ice crushing section 51a ride on the flow of compressed air and pass through the gap D of the ice crushing section 51a, and when passing through, the hammer members 52a, 52a,.・ It is crushed by being beaten, and becomes ice particles having a particle size that can pass through the gap D. The ice particles that have passed through the ice crushing section 51a are further transported on the flow of compressed air, and are passed through a flexible hose 57 having one end connected to the ice spreading outlet 5.
The ice is sent to a snow gun or the like connected to the other end of the flexible hose 57, and ice is spread from the snow gun or the like to a slope. Incidentally, the flexible hose 57 connected to the ice spreading outlet 5 is configured to be movable left and right, and as shown in FIG. 16, the flexible hose 57 is moved to open the ice spreading outlet 5 directly to the outside. Ice can be directly spread from the ice spreading outlet 5.

As described above, in the ice making system of the artificial snow making apparatus 1, the original ice 19 formed in the plate shape in the ice making chamber 2a of the ice making section 2 is broken into ice blocks by the primary crusher and transported. The ice mass transferred to the ice spreading unit 8 by the device 31 is crushed into ice particles by the secondary crusher 40, and the ice particles are sent out from the ice spreading outlet 5 to a snow gun or the like to be scattered. It is configured to be ice.

As described above, the particle size of the ice particles spread from the snow gun into the air can be adjusted by rotating the particle size adjusting plate 53 up and down to change the size of the gap D. is there. That is, the ice blocks conveyed in the ice crushing passage 51 are crushed by the hammer crusher 52 into ice particles in the ice crushing section 51a, but pass through the ice crushing section 51a unless the ice is crushed to a size that can pass through the gap D. Cannot be sent to snowgun. Therefore, the ice particles sent to the snow gun through the ice breaking passage 51 are separated by the gap D.
Can be adjusted to a granularity according to the size of the gap D, such as large when the gap is large and small when the gap D is small.

When ice is spread on a ski slope or the like by the artificial snow making apparatus 1 constructed as described above, first, as shown in FIG. 17, for example, a snow mat 61 or the like laid on the slope is first placed on a slope. An ice block having a certain size as the base snow is laid to form a base snow layer 62. And
Ice particles formed by the artificial snow making device 1 are scattered on the root snow layer 62 to form a snow layer 63. In this case, the root snow layer 62 on which ice blocks are laid is provided in order to make the upper snow layer 63 hard to melt, and the snow layer 63 has a different size in order to make the snow layer 63 itself hard to melt. Of ice particles.

In order to configure the snow layer 63 with large and small ice particles, the particle size of the ice particles to be scattered from the artificial snow making apparatus 1 is changed during the ice splatting. That is, the particle size adjusting plate 53 in the ice breaking portion 51a of the ice breaking passage 51 is rotated up and down at predetermined time intervals, and ice particles having a large particle size and ice particles having a small particle size are alternately spread. FIG. 18 shows an electric wiring diagram of the secondary crusher.
3 is controlled in sequence, for example, and the sequencer 59 controls the stepping motor 55
The switching of the rotation direction is performed, and the timing of switching the rotation direction is specified by the timer setting. Thereby, the vertical rotation amount and the rotation timing of the particle size adjusting plate 53 are determined, and the particle size of the ice particles to be scattered is automatically switched at regular intervals.

As described above, large and small ice particles are alternately scattered to form the snow layer 63, so that small-sized ice particles are formed in the gap between the large-sized ice particles and the large-sized ice particles. The density of the snow layer 63 can be increased by entering. As the density of the snow layer 63 increases, the snow layer 63 hardly melts and lasts longer. The particle size of the large and small particle sizes is determined by controlling the vertical rotation amount of the particle size adjusting plate 53, that is, the rotation amount of the stepping motor 55, so that the snow layer 63 is hardly melted. Can be set to a granularity of.

The artificial snowmaking apparatus 1 can be used not only to spread ice on a ski slope or the like, but also to spread cold ice for a fish carrier in a fishing port or the like.

[0036]

As described above, the present invention has the following advantages. That is, as described in claim 1, the original ice formed in a plate shape in the ice making unit is crushed into ice blocks by the primary ice crusher, transferred to the ice spreading unit by the transport device, and transferred to the ice spreading unit. The ice blocks thus formed are crushed into ice particles by a secondary ice crusher and are then spread, and the ice is removed by raising the temperature of an ice making plate on which the raw ice is formed. Therefore, the ice making room and the like constituting the artificial snow making device can be made compact, and the entire artificial snow making device can be configured as a unit type that can easily carry a truck or installation work such as a container. It has become possible. Thereby, the installation cost can be reduced, the installation space of the artificial snow making device can be reduced, and a maintenance space can be provided. As a result, the degree of freedom in the area in which the snow is simulated can be increased. Furthermore, by forming raw ice in a plate shape, power consumption during ice making can be reduced, and power for cooling the ice storage can be omitted, so that the power consumption of the entire artificial snowmaking apparatus can be reduced. it can. In addition, since the original ice can be formed thick by forming the original ice in a plate shape, it is possible to provide the snow which is hard to melt when the crushed ice particles are scattered.

Further, the water supply to the side wall of the ice making plate on which the original ice is formed is performed uniformly within the side wall, so that both sides of the ice making plate have a uniform thickness. Was able to form the original ice, and it was possible to prevent the occurrence of defective deicing.

Further, since the ambient temperature in the ice making room for making the original ice is controlled within a preset temperature range, the atmosphere in the ice making room does not become extremely low, and The occurrence of ice defects can be prevented.
In this case, for example, by using warm air in the machine room in which the compressor of the ice making unit is installed, air is blown into the ice making room to control the ambient temperature, so that a simple mechanism and low cost can be applied to the ice making room. Can be controlled within a certain range.

Further, since the grain size of the ice particles formed by crushing the original ice can be adjusted as described in claim 4, the density of the snow layer formed by scattering ice by an artificial snow making device is increased. As a result, the snow layer hardly melts, so that the once formed snow layer can be made to last longer.

Further, since the particle size of the ice particles can be changed over time and automatically, the ice particles having a large or small particle size are automatically and alternately scattered every predetermined time. As a result, a high-density hard-to-melt snow layer could be automatically formed, and a long-lasting snow layer could be formed with little labor.

[Brief description of the drawings]

FIG. 1 is a front view showing an artificial snowmaking apparatus according to the present invention.

FIG. 2 is a rear view of the same.

FIG. 3 is a left side view of the same.

FIG. 4 is a right side view of the same.

FIG. 5 is a plan view of the same.

FIG. 6 is a side view showing the interior of the ice making chamber.

FIG. 7 is a front view showing a state in which raw ice is formed on both side walls of the ice making plate.

FIG. 8 is a perspective view of the same.

FIG. 9 is a plan view showing the interior of the ice making chamber.

FIG. 10 is a front view showing the inside of the machine room.

FIG. 11 is a plan view of the same.

FIG. 12 is a side view of the same.

FIG. 13 is a side view taken along the line AA in FIG.

FIG. 14 is a side view showing a secondary crusher.

FIG. 15 is a front view of the same.

FIG. 16 is a plan view showing an ice spreading outlet.

FIG. 17 is a side view showing a snow-covered state when ice is spread by the artificial snowmaking apparatus.

FIG. 18 is a diagram showing electric wiring of a secondary crusher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Artificial snowmaking apparatus 2 Ice making part 2a Ice making room 3 Machine room 5 Ice spread outlet 6 Compressor 8 Ice spreading part 11 Ice making plate 11a Side wall 20 Primary ice breaker 31 Transport device 40 Secondary crusher

Claims (5)

[Claims] 1. An artificial snowmaking apparatus for transferring raw ice produced by an ice making unit to an ice spreader, crushing the ice, and then spreading the ice. Ice crushed into an ice block by an ice crusher, transferred to the ice spreader by a transport device, the ice block transferred to the ice spreader is configured to be crushed into ice particles by a secondary ice crusher and spread ice, An artificial snow making apparatus, wherein the deicing of the raw ice is performed by raising the temperature of an ice making plate on which the raw ice is formed. 2. In an artificial snowmaking apparatus for transferring raw ice produced in an ice making unit to an ice spreading unit, crushing ice, and then spreading ice, water is supplied to a side wall of an ice making plate on which the original ice is formed. An artificial snow making apparatus characterized in that the snow making is performed uniformly in the side wall. 3. In an artificial snowmaking apparatus for transferring raw ice produced in an ice making section to an ice spreading section, crushing the ice, and then spreading the ice, the ambient temperature in an ice making chamber for making the original ice is set to a predetermined temperature. An artificial snowmaking device characterized by being controlled within a range. 4. An artificial snowmaking apparatus for transferring raw ice produced in an ice making section to an ice spreading section, crushing the ice, and then scattering the ice, wherein the particle size of ice particles formed by crushing the original ice can be adjusted. An artificial snowmaking device characterized by comprising. 5. An artificial snowmaking apparatus for transferring raw ice produced in an ice making section to an ice spreading section, crushing the ice, and then scattering the ice, wherein the particle size of ice particles formed by crushing the original ice can be adjusted. Make up,
An artificial snowmaking apparatus wherein the particle size of the ice particles can be changed over time and automatically.