DE202021101813U1 - System for the production of ice and snow-making system - Google Patents

Abstract

Plant (10) for producing ice (11c), comprising at least one plate ice maker (12) with one or more ice making plates (13) for producing plate ice (11a), the plate ice maker (12) at its vertically lower end having at least one opening ( 14),
at least one dispensing device (18) for dispensing the ice (11c) from the system (10),
at least one crushing device (15) for crushing the plate ice (11a) into plate ice fragments (11b) with one or more breaking devices (16), the crushing device (15) being arranged vertically below the plate ice maker (12) so that plate ice (11a), which, due to its own weight, detaches itself from the ice making plates (13), falls through the opening (14) of the plate ice maker (12) into the crushing device (15) and on the crushing device (s) (16) of the crushing device (15) into plate ice fragments (11b) breaks, the shredding device (15) having at least one opening (17) at its vertically lower end.

Description

The invention relates to a system for producing ice and a snow-making system.

In the area of winter sports facilities, for example for downhill skiing, cross-country skiing, ski jumping or tobogganing, there is a need to produce technical snow when the ambient temperature is positive. The systems currently available for the production of technical snow at positive ambient temperatures are based on systems for the production of flake ice. A previously unknown alternative to flake ice in snowmaking technology would be sheet ice. Plate ice has significant advantages over flake ice in terms of specific energy requirements and power density, but in snow-making technology, plate ice has so far not been perceived as an alternative to flake ice. This is due to the fact that slab ice is produced in gushes and with a high proportion of water, and is therefore not suitable for pneumatic conveyance. Such a pneumatic conveyance is mandatory for snowmaking in winter sports for economic use.

The invention is therefore based on the object of specifying a new system for producing ice and a new snow-making system, in particular a system and a snow-making system, by means of which it is possible to produce ice for snow-making on the basis of plate ice.

This object is achieved with regard to the system by the features of claim 1 and with regard to the snow-making system by the features of claim 15. Advantageous embodiments and developments are specified in the respective dependent claims.

The system according to the invention for the production of ice, in particular for the production of ice for a, preferably technical, snow-making system, comprises at least one plate ice maker with one or more, in particular vertically oriented, ice-making plates for producing plate ice, the plate ice maker at its vertically lower end at least one Has opening, at least one output device for outputting the ice from the system, at least one crushing device for crushing the plate ice into plate ice fragments with one or more breaking devices, wherein the crushing device is arranged vertically below the plate ice maker, so that plate ice, which is due to its own weight from the Ice-making plates dissolve through the opening of the plate-ice-maker falls into the crushing device and breaks into plate-ice fragments on the crushing device or devices of the crushing device, with the crushing device at least one opening at its vertically lower end.

An essential advantage of the invention is that with the system according to the invention, low pressure loss and continuous flight conveyance of technical snow is also possible on the basis of plate ice.

According to a particularly preferred development of the invention, it is provided that the system comprises at least one buffer ice store, the buffer ice store being provided for collecting the plate ice fragments into a quantity of ice, the buffer ice store being arranged vertically below the shredding device, so that the plate ice fragments are removed from the shredding device may fall or fall into the buffer ice store, the buffer ice store having at least one opening at its vertically lower end, from which the ice is drawn out or can be drawn out.

According to a preferred embodiment variant of the invention, the system comprises a conveying device for conveying the ice from the buffer ice store to the output device, at least one section of the conveying device being arranged vertically below the buffer ice store.

The comminution device is preferably a static and / or motion-free comminution device. Furthermore, it is preferably provided that the system does not have a so-called “icebreaker” or “ice crusher”, such an “icebreaker” or “ice crusher” breaking the ice through movement, for example of mechanical components.

According to a further development, each crushing unit of the crushing device has an edge or point, the edge or point being oriented vertically upwards, so that plate ice that falls from the plate ice maker into the crushing device and onto the edges or tips of the crushing devices is on the edges or Tips breaks. The breaking units can, for example, be roof-shaped, cap-shaped or conical.

The plate ice maker is particularly preferably or comprises a compression refrigeration system.

Furthermore, the conveying device preferably comprises a screw conveyor, in particular a trough screw conveyor.

The output device is or preferably comprises a rotary valve.

It can be provided that the conveying device has a conveying path with a conveying direction towards the output device, the conveying path and / or the conveying direction being inclined in relation to a horizontal, the conveying path being lower in the area of the opening of the buffer store in relation to the horizontal and is arranged higher in the area of the output device.

The inclination of the conveying path and / or conveying direction can prevent water from flowing out of the conveying device into or towards the output device, in particular the rotary valve.

It is preferably provided that the pitch of the screw conveyor or the conveyor section of the screw conveyor is greater in the conveying direction. In particular, it is provided that the pitch of the screw conveyor doubles in one end region of the conveyor line. The pitch is, in particular, the helix pitch of the screw helix. The end area is preferably the area of the conveying path in the conveying direction behind a displacement plate, for example behind a front edge of the displacement plate in the conveying direction. By doubling the pitch of the screw conveyor, the filling level can be halved and / or the conveyed ice can be loosened. The conveying device preferably comprises a motor for driving the conveying device.

The buffer store is preferably designed like a hyperbolide or a double cone or a double pyramid. It can be provided that the buffer store has at least one opening at its vertically lower end and at least one second opening at its vertically upper end as well as a central section in between, the buffer store tapering in a funnel shape starting from its vertically upper opening towards the central section the buffer store is widened starting from the central section towards its vertically lower opening. The middle section is preferably the narrowest area of the buffer store. The plate ice fragments preferably fall through the funnel-shaped section and are collected in the widening section, a form fit of the plate ice fragments preferably being prevented, particularly preferably being prevented entirely.

The buffer store is designed in particular in such a way that ice is output from the buffer store continuously and / or with a constant mass flow.

The system preferably has a first water separator, in particular a first perforated plate, the first water separator being arranged in the comminution device and / or vertically below the crushing devices, with melt water being separated from the ice and discharged or separable and being carried away by means of the first water separator in the comminution device is deductible.

In particular, the system has a first return line, the first return line preferably connecting the shredding device and the plate ice maker, with melt water separated by the first water separator being returned to the plate ice maker or being recyclable by means of the first return line.

The system preferably has a second water separator, in particular a second perforated plate, the second water separator being arranged vertically below the conveying device, whereby by means of the second water separator melt water, which is conveyed by means of the conveying device, is separated and discharged from the ice or can be separated and discharged is.

The system preferably has a melt water collecting container, the melt water collecting container being arranged vertically below the conveying device, whereby melt water separated by the second water separator is collected or can be collected in the melt water collecting container. Furthermore, it can be provided that the system has a second return line, the second return line preferably connecting the melt water collecting tank and the comminution device, whereby melt water separated by the second water separator and collected in the melt water collecting tank by means of the second return line enters the comminution device and by means of the first return line from the Crushing device is returned to the plate ice maker or is recyclable.

According to one embodiment variant of the invention, the system comprises a displacement plate, in particular a displacement plate, the displacement plate being provided for guiding the ice out of the buffer ice store and / or the ice on or in the conveying device.

The displacement plate is preferably arranged vertically between the opening of the buffer store and the conveying device. The displacement plate is arranged horizontally next to the area of the conveyor device which is located below the opening of the buffer store. In other words, the displacement plate is arranged downstream of the area below the opening of the buffer store in the conveying direction. It can also be provided that the Displacer plate is arranged in an end region of the conveyor device which is close to the output device.

It is preferably provided that the displacement plate has an inclination in relation to a horizontal, the displacement plate being arranged lower on the buffer storage side in relation to the horizontal and higher on the dispensing device side.

A preferred embodiment of the invention provides that the system comprises a pneumatic conveying device, preferably with a fan, the pneumatic conveying device being connected to the dispensing device in such a way that the pneumatic conveying device dispensed ice on the dispensing device by means of compressed air, in particular to a snow-making place, transported.

It is particularly preferably provided that the system is a mobile system, the system being designed to be transportable. It can be provided that the system is designed as a container and / or in a container construction, or the system is arranged in a container, in particular a sea freight container.

The installation of the system takes place in the winter sports area, as a rule, far away from the industrial environment in a natural area. A compact design and a suitable design for installation with little use of tools and personnel at the installation site is therefore advantageous for usability.

The container can be provided as a machine room for the system. The system preferably has a heating device for the system or the container. The heating device is preferably operated at least partially with the waste heat from the plate ice maker. The containers can have insulation on their inside. Furthermore, the system can have one or more frost protection heaters.

The system can also have a safety device, one or more, preferably all, water-carrying parts of the system being emptied by means of the safety device, preferably by means of valves that are opened or can be opened by the safety device.

The snow-making system according to the invention comprises at least one system for producing ice. The snow-making system is characterized in that the system for producing ice is a system according to the invention.

A method for producing ice is carried out with a system, in particular a system according to the invention, comprising at least one plate ice maker with one or more, in particular vertically aligned, ice making plates for producing plate ice, the ice maker having at least one opening at its vertically lower end, at least a dispensing device for dispensing the ice from the system, at least one comminuting device for comminuting the slab ice into slab ice fragments with one or more breaking devices, the comminuting device being arranged vertically below the ice maker, the comminuting device having at least one opening at its vertically lower end.

1. a) Erzeugen von Platteneis an den Eiserzeugungsplatten der Platteneisanlage,
2. b) Zerkleinern des Platteneises in Platteneisfragmente mittels der Zerkleinerungseinrichtung, wobei das Platteneis, welches sich aufgrund seines Eigengewichts von den Eiserzeugungsplatten löst, durch die Öffnung des Platteneiserzeugers in die Zerkleinerungseinrichtung geführt wird und an der oder den Brechvorrichtungen der Zerkleinerungseinrichtung in Platteneisfragmente zerbrochen wird,
3. c) Ausgeben des Eises mittels einer Ausgabevorrichtung.

The procedure consists of the following steps:

1. a) generating plate ice on the ice making plates of the plate ice plant,
2. b) Crushing the plate ice into plate ice fragments by means of the crushing device, wherein the plate ice, which is released from the ice making plates due to its own weight, is passed through the opening of the plate ice maker into the crushing device and is broken into plate ice fragments at the breaking device or devices of the crushing device,
3. c) dispensing the ice by means of a dispensing device.

A further development of the method provides that the system comprises at least one buffer store, the plate ice fragments being collected into a quantity of ice by means of the buffer store, the buffer store being arranged vertically below the shredding device, the buffer store having at least one opening at its vertically lower end having, wherein the plate ice fragments are fed to the buffer storage after being crushed in the crushing device and / or are accumulated in the buffer storage to form a quantity of ice.

Furthermore, it can be provided that the plate ice fragments fed to the buffer store and / or accumulated in the buffer store is output as ice from the buffer store continuously and / or with a constant mass flow.

The system preferably comprises a conveying device, at least one section of the conveying device being arranged vertically below the buffer ice store, the ice being fed from the buffer ice storage to the conveying device and by means of the conveying device to the dispensing device.

According to an advantageous development of the method, the system includes a pneumatic one Conveying device, preferably with a fan, the pneumatic conveying device being connected to the dispensing device, ice dispensed at the dispensing device being transported by means of compressed air generated by the pneumatic conveying device, in particular to a place to be snowed.

The system preferably has a first water separator, in particular a first perforated plate, the first water separator being arranged in the crushing device and / or vertically below the crushing devices, with melt water being separated from the ice and discharged by means of the first water separator in the crushing device.

In particular, the system has a first return line, the first return line preferably connecting the comminuting device and the plate ice maker, with melt water separated by the first water separator being returned to the plate ice maker by means of the first return line.

The system preferably has a second water separator, in particular a second perforated plate, the second water separator being arranged vertically below the conveying device, with melt water being separated from the ice conveyed by the conveying device and discharged by means of the second water separator.

The system preferably has a melt water collection container, the melt water collection container being arranged vertically below the conveying device, the melt water separated by the second water separator being collected in the melt water collection container. Furthermore, it can be provided that the system has a second return line, the second return line connecting the melt water collecting tank and the comminution device, whereby melt water separated by the second water separator and collected in the melt water collecting tank by means of the second return line is fed into the comminution device and by means of the first return line from the comminution device is returned to the plate ice maker.

• 1 ein Ausführungsbeispiel einer erfindungsgemäßen Anlage in einer schematischen Schnittdarstellung mit Schnitt parallel zur Längsseite;
• 2 die Anlage nach 1 in einer schematischen Schnittdarstellung mit Schnitt parallel zur Frontseite.

The system according to the invention, the snow-making system according to the invention and the method are explained in more detail below with regard to further features and advantages using the description of exemplary embodiments and with reference to the accompanying schematic drawings. Show it

• 1 an embodiment of a system according to the invention in a schematic sectional view with a section parallel to the longitudinal side;
• 2 the plant after 1 in a schematic sectional view with a section parallel to the front side.

Parts and components that correspond to one another are denoted by the same reference symbols in each case throughout the various figures and exemplary embodiments.

1 and 2 show a system according to the invention 10 for making ice 11c for a technical snow-making system. The attachment 10 is designed in container construction and thus a mobile, transportable system.

The system according to the invention 10 comprises a plate ice maker designed as a compression refrigeration system 12th with several vertically aligned ice-making plates 13th for the production of plate ice 11a . The plate ice maker 12th has an opening at its vertically lower end 14th on.

The attachment 10 further comprises a comminuting device 15th for crushing the plate ice 11a in plate ice fragments 11b . The shredding device 15th includes several breaking devices 16 and is vertically below the plate ice maker 12th arranged so that plate ice 11a , which is due to its own weight from the ice-making plates 13th solves through the opening 14th of the plate ice maker 12th into the shredding device 15th falls and on the breaking device or devices 16 the shredding device 15th in plate ice fragments 11b breaks. The shredding device 15th has an opening at its vertically lower end 17th on. The shredding device 15th is static and free of movement. Each crushing unit 16 the shredding device 15th is roof-like and has an edge 22nd on, being the edge 22nd oriented vertically upwards, so that plate ice 11a , which from the plate ice maker 12th into the shredding device 15th and on the edges 22nd the breaking devices 16 falls on the edges 22nd breaks.

The system according to the invention 10 further comprises an output device designed as a rotary feeder 18th for dispensing ice cream 11c from the plant 10 . The plant also includes 10 a pneumatic conveyor 37 with a fan, the pneumatic conveyor 37 with the output device 18th is connected such that the pneumatic conveyor 37 at the output device 18th ice dispensed 11c transported by means of compressed air to a place to be snowed.

The plant also includes 10 a buffer storage tank 19th to collect the plate ice fragments 11b from the shredder 15th to a lot of ice 11c , the buffer tank 19th vertically below the shredding device 15th is arranged so that the plate ice fragments 11b from the shredder 15th in the buffer tank 19th fall, with the buffer tank 19th at least one opening at its vertically lower end 20th has, from which the ice 11c is executable. The buffer storage tank 19th is designed like a hyperbolide, with the buffer store 19th an opening at its vertically lower end 20th and a second opening at its vertically upper end 28 and a middle section therebetween 29 having. The middle section 29 is the narrowest area of the buffer storage tank 19th . The buffer storage tank 19th tapers starting from its vertically upper opening 28 towards the middle section 29 funnel-shaped. Starting from the middle section 29 towards its vertically lower opening 20th the buffer storage tank widens 19th again. The buffer storage tank 19th is designed in such a way that ice 11c continuously and with constant mass flow at the vertically lower opening 20th from the buffer storage tank 19th is issued.

The attachment 10 further comprises a conveyor device 21 for pumping the ice 11c from the buffer storage tank 19th to the output device 18th , being a portion of the conveyor 21 vertically below the storage tank 19th is arranged so that from the buffer tank 19th ice dispensed 11c on or in the conveyor 21 can fall. The conveyor 21 comprises a screw conveyor designed as a trough screw conveyor 26th and an engine 27 to drive the conveyor 21 . The conveyor 21 has a conveyor line 23 with one conveying direction F. towards the output device 18th on, the conveyor line 23 and the direction of conveyance F. in relation to a horizontal H have a slope, the conveyor line 23 in the area of the opening 20th of the buffer memory 19th in relation to the horizontal H deeper and in the area of the output device 18th is arranged higher. Due to the incline of the conveyor line 23 or the conveying direction F. can cause water drainage 24 from the conveyor 21 into or towards the output device designed as a rotary valve 18th be avoided. It is also provided that the pitch of the screw conveyor 26th or the conveyor line 23 the screw conveyor 26th in one in the conveying direction F. rear end area 25th doubled. The end area 25th is the area of the conveyor line 23 behind the in the conveying direction F. front edge 36 a displacement plate 35 . The filling level of the screw conveyor is determined by doubling the pitch 26th halved and the conveyed ice 11c loosened up. The displacement plate 35 is in particular a displacement plate and for directing the ice 11c from the buffer storage tank 19th . The displacement plate 35 is vertical between the opening 20th of the buffer memory 19th and the conveyor 21 arranged. The displacement plate is horizontal 35 next to the conveyor area 21 located below the opening 20th of the buffer memory 19th is located. In other words, it is the displacer plate 35 in conveying direction F. the area below the opening 20th of the buffer memory 19th subordinate. The displacement plate 35 points in relation to a horizontal H an inclination, the displacer plate 35 On the buffer storage side in relation to the horizontal H is arranged lower and higher on the dispensing device side.

The attachment 10 has a first water separator designed as a perforated plate 30th on, with the first water separator 30th in the shredder 15th below the breaking devices 16 is arranged, and wherein by means of the first water separator 30th in the shredder 15th Meltwater 24 from the ice 11c is separated and discharged. Furthermore, the plant 10 a first return line 31 on, the first return line 31 the shredding device 15th and the plate ice maker 12th connects, and wherein by means of the first return line 31 through the first water separator 30th separated meltwater 24 in the plate ice maker 12th is returned.

The attachment 10 also has a second water separator designed as a perforated plate 32 on, the second water separator 32 vertically below the conveyor 21 is arranged, and wherein by means of the second water separator 32 Meltwater 24 from the ice 11c , which by means of the conveyor 21 is promoted, separated and discharged. Furthermore, the plant 10 a meltwater collecting tank 34 on, the meltwater collecting tank 34 vertically below the conveyor 21 is arranged, and wherein the second water separator 32 separated meltwater 24 in the meltwater collecting tank 34 is caught. Furthermore, the plant 10 a second return line 33 on, the second return line 33 the meltwater collecting tank 34 and the crusher 15th connects, and wherein by means of the second return line 33 through the second water separator 32 separated and in the meltwater collecting tank 34 collected melt water 24 into the shredding device 15th and by means of the first return line 31 from the shredder 15th to the plate ice maker 12th is returned.

The snowmaking system according to the invention (not shown in the figures) comprises the in 1 and 2 illustrated system according to the invention 10 for making ice 11c . With the system described above 10 can be a method of making ice 11c for the snowmaking system.

According to the method, plate ice is first made in step a) 11a on the ice-making plates 13th the plate ice plant 12th generated. Then, according to a step b), the plate ice 11a by means of the shredding device 15th in plate ice fragments 11b crushed, whereby the plate ice IIa, which is due to its own weight from the ice-making plates 13th solves, through the opening 14th of the plate ice maker 12th into the shredding device 15th is guided and at the breaking devices 15th the shredding device 16 in plate ice fragments 11b breaks.

The slab ice fragments 11b are then added to the buffer storage tank 19th supplied and in the buffer tank 19th to a lot of ice 11c accumulated. The ice 11c from the buffer storage tank 19th is continuously and with a constant mass flow from the buffer storage tank 19th the conveyor 21 fed.

By means of the conveyor 21 becomes the ice 11c the output device 18th fed. In a further step c) the ice 11c by means of the output device 18th issued, at the output device 18th ice dispensed 11c by means of the pneumatic conveyor 37 generated compressed air is transported to a place to be snowed.

List of reference symbols

10

investment

11a

Plate ice

11b

Slab ice fragment

11c

ice

12th

Plate ice maker

13th

Ice making plates

14th

opening

15th

Shredding device

16

Breaking device

17th

opening

18th

Dispenser

19th

Buffer storage

20th

opening

21

Conveyor

22nd

Edge

23

Conveyor line

24

water

25th

End area

26th

Auger

27

engine

28

opening

29

Middle section

30th

first water separator

31

first return line

32

second water separator

33

second return line

34

Meltwater collecting tank

35

Displacement plate

36

Edge

37

pneumatic conveyor

H

horizontal

V

vertical

F.

Conveying direction

Claims (15)

Plant (10) for producing ice (11c), comprising at least one plate ice maker (12) with one or more ice making plates (13) for producing plate ice (11a), the plate ice maker (12) at its vertically lower end having at least one opening ( 14), at least one dispensing device (18) for dispensing the ice (11c) from the system (10), at least one crushing device (15) for crushing the plate ice (11a) into plate ice fragments (11b) with one or more breaking devices (16), the crushing device (15) being arranged vertically below the plate ice maker (12) so that plate ice (11a), which, due to its own weight, detaches itself from the ice making plates (13), falls through the opening (14) of the plate ice maker (12) into the crushing device (15) and on the crushing device (s) (16) of the crushing device (15) into plate ice fragments (11b) breaks, the shredding device (15) having at least one opening (17) at its vertically lower end. Plant after Claim 1 , characterized in that the system (10) comprises at least one buffer store (19), the buffer store being provided for collecting the plate ice fragments (11b) to form a quantity of ice (11c), the buffer store (19) being provided vertically below the shredding device ( 15) is arranged so that the plate ice fragments (11b) from the shredding device (15) into the buffer ice storage (19) may fall or fall, the buffer ice storage (19) having at least one opening (20) at its vertically lower end, from which the ice (11c) is or can be made. Plant after Claim 2 , characterized in that the buffer store (19) is designed like a hyperbolide or a double cone or a double pyramid. Plant after Claim 2 or 3rd , characterized in that the system (10) comprises a conveying device (21) for conveying the ice (11c) from the buffer ice storage (19) to the output device (18), at least a section of the conveying device (21) vertically below the buffer ice storage (19 ) is arranged. Plant after Claim 4 , characterized in that the conveyor device (21) comprises a screw conveyor (26). Plant after Claim 4 or 5 , characterized in that the conveying device (21) has a conveying path (23) with a conveying direction (F) towards the output device (18), the conveying path (23) and / or the conveying direction (F) in relation to a horizontal (H ) have an incline, the conveying path (23) being arranged lower in the area of the opening (20) of the buffer store (19) in relation to the horizontal (H) and higher in the area of the output device (18). System according to one of the preceding claims, characterized in that the plate ice maker (12) is or comprises a compression refrigeration system. Plant according to one of the preceding claims, characterized in that the comminution device (15) is a static and / or motion-free comminution device (15). Plant according to one of the preceding claims, characterized in that each breaking unit (16) of the crushing device (15) has an edge (22) or point, the edge (22) or point being oriented vertically upwards so that plate ice (11a) which falls from the plate ice maker (12) into the comminuting device (15) and onto the edges (22) or tips of the breaking devices (16), breaks at the edges (22) or tips. Plant according to one of the preceding claims, characterized in that the output device (18) is or comprises a rotary valve. Plant according to the Claims 2 and 4th , characterized in that the system (10) comprises a displacement plate (35), the displacement plate (35) for guiding the ice (11c) out of the buffer ice store (19) and / or the ice (11c) on or in the conveying device ( 21) is provided. System according to one of the preceding claims, characterized in that the system (10) comprises a pneumatic conveying device (37), the pneumatic conveying device (37) being connected to the output device (18) in such a way that the pneumatic conveying device (37) is connected to the Dispenser (18) dispensed ice (11c) transported by means of compressed air. System according to one of the preceding claims, characterized in that the system (10) is a mobile system, the system (10) being designed to be transportable. System according to one of the preceding claims, characterized in that the system (10) is designed as a container and / or in a container construction, or that the system (10) is arranged in a container. Snow-making system, comprising at least one system (10) for producing ice, characterized in that the system (10) for producing ice is a system (10) according to one of the Claims 1 to 14th is.

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