KR102339810B1 - Dry ice manufacturing method - Google Patents

Abstract

The present invention relates to a method for producing a dry ice product. Particularly, the present invention relates to a method capable of producing a block-shaped dry ice product. The method according to the present invention includes the steps of: (S10) a storage step of storing liquid carbonic acid in a tank; (S20) a pelletizing step of cooling and molding the liquid carbonic acid by using a pelletizer to provide pellets; (S30) a block-forming step of forming the pellets into blocks by using a block-forming device including a mold for receiving the pellets and a press for pressurizing the pellets received in the mold; and a post-treatment step (40) including at least one of a step of packaging the blocks and a step of refrigerating the blocks.

Description

Dry ice product manufacturing method {DRY ICE MANUFACTURING METHOD}

The present invention relates to a method for manufacturing a dry ice product, and more particularly, to a method for manufacturing a dry ice product capable of manufacturing a block-shaped dry ice product.

Dry ice refers to carbon dioxide in solid form. When the pressure of this dry ice is 1 atm, the dry ice sublimes to gas at -78.5 °C, and is used as a refrigerant for various purposes. In particular, dry ice does not leave any by-products, so it is convenient for storing and transporting frozen and refrigerated foods such as meat and ice cream.

On the other hand, dry ice cools gaseous carbon dioxide at a high pressure to make it liquid, moves liquid CO2 into an empty container through an expansion valve to expand it, and then vaporizes and lowers the temperature rapidly. At this time, about 46% of the gas is made of dry ice in powder form. The remaining gas is discharged or recovered and reused.

On the other hand, the prior art Registered Utility Model No. 20-0423559 (hereinafter referred to as the prior art) relates to a dry ice pellet manufacturing apparatus, and is for manufacturing dry ice in a pellet state.

More specifically, by having a cylinder part formed by dividing two or more cylinders therein and corresponding pistons, injection dies, cranks and connecting rods, it is possible to produce more dry ice pellets in a certain amount of time. have

However, the prior art has a problem in that it cannot be manufactured as a block-shaped dry ice product that is easy to handle, such as transport and storage.

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a method for manufacturing a dry ice product capable of manufacturing a block-shaped dry ice product.

Another object of the present invention is to provide a method for manufacturing a dry ice product capable of suppressing scattering of pellets during the block manufacturing process, maintaining a clean working environment, and minimizing wasted pellets.

The present invention for the purpose of solving the above problems has the following configuration and features.

A storage step of storing liquid carbonic acid in a tank (S10), a pellet manufacturing step of cooling and molding the liquid carbonic acid using a pellet manufacturing device to produce pellets (S20), a mold in which the pellets are accommodated, and the mold housed in the mold Post-processing comprising at least one of a block manufacturing step (S30) of manufacturing the pellets into blocks using a block manufacturing apparatus including a press for pressing the pellets, packaging the blocks, and refrigerated storage of the blocks Step S40 is included.

In addition, the pellet manufacturing apparatus includes a discharge unit provided at the rear end of the die to provide a discharge path of the pellets, the front end is disposed below the rear end of the discharge unit, the front end is inclined downward toward the rear end, the front end is provided at the rear end of the bottom and a rear end bottom portion that decreases in width toward the rear end and inclined downward, and a front end side wall portion protruding upward from each of one end and the other end of the front end bottom portion; A rear end side wall portion protruding upward from one end and the other end of the rear end bottom portion, a connecting part in contact with the upper portion of the discharge portion, and a spaced part extending downwardly from the connecting part to the front end side and spaced apart from the lower portion of the discharge portion It may include a pellet transfer step (S25) carried out by a guide member including a scattering prevention unit that includes.

In addition, the front end is provided on the rear end of the block manufacturing apparatus, and further comprising a block transfer step (S35) performed by an inclined plate inclined downward toward the rear end, wherein the inclined plate may have a plurality of through holes.

The present invention having the above configuration and characteristics has the effect of manufacturing a block-shaped dry ice product that is easy to handle, such as transport and storage, by including the block manufacturing step.

In addition, the present invention has the effect of minimizing the waste of the pellets and keeping the working environment clean by including the pellet transport step performed by the guide member, it is possible to suppress the scattering and external leakage of the pellets.

In addition, the present invention has the effect of minimizing material waste by including a block transfer step performed by an inclined plate having a through hole, so that the pellets attached to the block can be recovered and reused.

1 is a schematic block diagram illustrating a method for manufacturing a dry ice product according to an embodiment of the present invention.
2 is a view for explaining the tank.
3 is a view for explaining the pellet manufacturing apparatus and the guide member.
4 is a view for explaining a block manufacturing apparatus.
5 is a view for explaining the inclined plate.
6 is a view for explaining the packaging machine.
7 is a view for explaining a freezer.
8 is a view for explaining the control panel of the pellet manufacturing apparatus.
9 is a view for explaining a further embodiment of the present invention.

Since the present invention can have various changes and can have various forms, implementation examples (態樣, aspects) (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as comprises or consists of are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

~1~, ~2~, etc. described in the present specification are only to be referred to to distinguish that they are different components, and are not limited to the order of manufacture, and their names in the detailed description and claims of the invention are may not match.

Throughout this specification, when a part is "connected" to another part, it includes not only the case of being "directly connected", but also the case of being "indirectly connected" with another element interposed therebetween. do.

1 is a schematic block diagram illustrating a method for manufacturing a dry ice product according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating a tank.

In general, dry ice is produced by cooling carbon dioxide gas (carbon dioxide gas) at a high pressure to produce cooled liquid carbon dioxide (liquid carbon dioxide), and by absorbing heat from the rest of the liquid carbonic acid by vaporizing some while expanding the liquid carbon dioxide. Made with dry ice.

The dry ice product manufacturing method according to an embodiment of the present invention is for manufacturing a block-shaped (shape) dry ice product. Hereinafter, it will be referred to as 'this method' for convenience of description.

1 and 2, the method includes a storage step (S10), a pellet production step (S20), a block production step (S30) and a post-processing step (S40).

The storage step S10 is a step of storing liquid carbonic acid in the tank 1 . As described above, liquid carbon dioxide is carbon dioxide in a liquid state obtained by cooling carbon dioxide gas at a high pressure.

Therefore, the tank 1 is preferably provided with a refrigeration device or the like to maintain the liquid carbonic acid in a liquid state.

3 is a view for explaining the pellet manufacturing apparatus and the guide member.

1 and 3, the pellet manufacturing step (S20) is a step for manufacturing pellets by cooling and molding the liquid carbonic acid using the pellet manufacturing apparatus (2).

Pellet manufacturing apparatus 2 may include a configuration corresponding to a pelletizer (Pelletizer) (refer to the prior art) commonly used in the field, illustratively the pellet manufacturing apparatus 2 includes a cooling device and an expansion chamber communicating with the tank 1 and a valve for opening and closing the expansion chamber. That is, the liquid carbon in the tank 1 moves to the expansion chamber as the valve is opened. As the volume of liquid carbonic acid in the expansion chamber rapidly increases, some absorbs the rest of the heat and vaporizes it, leaving the rest on the tongue. (Snow) Made from carbonic acid.

The upper expansion chamber may include a cooling device (eg, a binary refrigerator) to maintain the temperature of the snow carbonate.

In addition, the pellet manufacturing apparatus 2 may include a die (mold) including a plate having a plurality of discharge holes, etc. . That is, as the carbonated tongue is extruded and passed through the die, the dry ice processed product in the form of pellets is manufactured.

Also, the pellet manufacturing apparatus 2 may include a discharge unit 21 provided at the rear end of the die to provide a discharge path of the pellets. Exemplarily, the discharge part 21 may have a tip disposed on the die side and a rear end disposed on an upper side of the tip bottom part 51 to be described later. Exemplarily, the discharge unit 21 may have a tubular shape with a hollow therein.

Here, the industrial end and the rear end are based on the movement direction of carbon dioxide (carbon dioxide gas, liquid carbon dioxide, dry ice) in the present method, and in this method, the carbon dioxide may move from the front end to the rear end (described in detail in the description below) However, after the pellet collides with the scattering prevention part 55 to be described later, it can move in the reverse direction (from the rear end to the front end side) until the tip bottom part 51).

On the other hand, the dry ice processed product manufactured in the form of pellets as in the prior art has a problem in that it is not easy to handle, such as transport and storage, because the volume is small and scattering is easy.

This method is for manufacturing the dry ice processed product in the form of pellets in a block form, and includes a block manufacturing step (S30).

4 is a view for explaining a block manufacturing apparatus.

1 and 4, the block manufacturing step (S30) is block manufacturing comprising a mold 31 (accommodating box) in which the pellets are accommodated and a press 32 for pressing the pellets accommodated in the mold 31 It is a step of manufacturing the pellets into block-type dry ice products using the device 3 .

Illustratively, the formwork 31 may include a bottom plate having a rectangular shape in plan view and a side plate formed along the periphery of the bottom plate, and the press 32 may have a bottom surface corresponding to the shape of the bottom plate. can

The press 32 may be connected to the cylinder to move up and down, for example, and when the press 32 covers the opening formed by the upper end of the side plate, the internal space may correspond to the shape of the block.

The pellets are accommodated in the receiving space of the mold 31, and as the press 32 moves downward, the pellets are pressed to produce a block-shaped dry ice product.

As described above, the present method has the advantage of being able to manufacture a block-shaped dry ice product that is easy to handle, such as transport and storage, by including the block manufacturing step ( S30 ).

1, 3 and 4, the method may include a pellet transfer step (S25). The pellet transfer step (S25) is a step of transferring the pellets manufactured in the pellet manufacturing apparatus 2 to the above-described block manufacturing apparatus 3, and may be performed by the guide member 5.

When the guide member 5 is described in detail, the front end is disposed on the lower side of the rear end of the discharge unit 21 and the end bottom 51 is inclined downward toward the rear end, the front end is provided at the rear end of the Baduk portion, and the width toward the rear end is reduced and inclined downward, at one end and the other end of the front end side wall portion 53 and the rear end bottom 52 each protruding upward from one end and the other end of the front end bottom 51, respectively. It may include a rear end side wall portion 54 protruding upward.

Illustratively, the block manufacturing apparatus 3 may include a hopper, and the rear bottom part 52 is disposed on the upper side of the hopper, so that the pellets discharged from the discharge part 21 are discharged from the tip bottom part ( 51) and the rear bottom part 52, it can move toward the block manufacturing apparatus (3) side.

Here, the width means a distance between one end and the other end, and the width means a direction orthogonal to the bottom part (the tip bottom part 51 and the rear bottom part 52) based on the movement direction of the pellet. can do.

As such, the method includes a pellet transfer step (S25) of moving the pellets to the block manufacturing apparatus 3 side by using the guide member 5 including the front end bottom 51 and the rear end bottom 52. There is an advantage that the pellets manufactured in the pellet manufacturing apparatus (2) can be easily transported to the block manufacturing apparatus (3) side.

In addition, as described above, by including the front end side wall part 53 and the rear end side wall part 54, the pellets on the bottom part move to one end and the other end to be separated to the outside (from the guide member 5 to the outside). can be effectively suppressed.

On the other hand, since the volume of the pellets is small and the mass of the writer is also small, when the pellets fall from the discharge part 21 to the tip bottom part 51, they may bounce off the guide member 5 and escape to the outside. Therefore, the guide member 5 may include a scattering prevention part 55 which is a configuration for suppressing the separation of the pellets.

The scattering prevention part 55 may be, for example, in a rod or tubular shape, and may be disposed on the tip bottom part 51 to have a longitudinal direction parallel to the normal direction of the tip bottom part 51 .

In this case, a connection part in contact with the upper portion (inner upper surface) of the discharge unit 21, and a spaced part extending downward from the connection part to the tip side and spaced apart from the lower portion of the discharge unit 21 may be included.

As described above, it was said that the scattering prevention part 55 may have a rod or tube shape, and the lower end is disposed in contact with the tip bottom part 51 , and the upper part is partially inserted into the hollow inside of the discharge part 21 to the inside In contact with the upper surface, the middle portion may be spaced apart from the lower portion of the discharge portion (21).

Through this, the pellets discharged from the discharge unit 21 first collide with the scattering prevention unit 55 and fall, but the pellets moving in the rear end direction from the discharge unit 21 collide with the scattering prevention unit 55 and then reverse It moves in the tip-side direction, which is the direction, and is disposed on the tip bottom part 51 , and then moves again in the rear-end direction on the tip bottom part 51 .

Therefore, since the speed of the pellet is reduced by stopping the pellet moving in the rear end direction and then moving it in the front end side direction, it is possible to reduce the degree of bouncing of the pellet by reducing the impact level between the tip bottom part 51 and the pellet. There is an advantage that it is possible to effectively suppress separation from the guide member 5 .

The pellets transferred to the pellet manufacturing apparatus 2 through the pellet transfer step (S25) are discharged to the outlet of the hopper, and then received into the inner space of the formwork 31 by a horizontal transfer means that moves in the horizontal direction. can

The horizontal transport means may include, for example, a fluid cylinder, a moving plate provided at the rod end of the fluid cylinder, and the like. Since this is commonly used in the relevant field, a more detailed description will be omitted.

As the moving plate moves, the pellets moving in the horizontal direction are accommodated into the inner space of the form 31 through the upper opening (opening formed by the side plate) of the form 31, or the bottom plate is connected to the cylinder to move up and down. After the bottom plate moves downward, the pellets move between the bottom plate and the side plate by the moving plate, and then the bottom plate moves upward to be accommodated in the inner space of the mold 31 have.

The above configuration has been described as an example, and the pellets may be accommodated in the inner space of the form 31 in various ways.

Thereafter, as described above, in the block manufacturing step (S30), the press 32 moves downward and the pellets are compression molded and manufactured into blocks.

5 is a view for explaining the inclined plate.

1 and 5 , the method may include a block transfer step (S35) performed by an inclined plate having a front end provided on the rear end side of the block manufacturing apparatus 3, and inclined downward toward the rear end. have. A conveyor may be disposed at the rear end of the inclined plate 6 in the block transfer step (S35), and thus the block transfer step (S35) may be performed by the inclined plate 6 and the conveyor. In the block transfer step ( S35 ), the block-shaped dry ice product may be transferred to the rear end and moved to the packaging machine 41 or the freezer 42 , which will be described later.

On the other hand, it may include a plurality of through-holes 61 formed to pass through the upper and lower surfaces of the inclined plate 6 described above.

Through this, the block moves downward on the inclined plate 6, and the pellets attached to the block penetrate the through hole 61 and fall to the lower side of the inclined plate 6, through which the pellets are not formed into blocks. It has the advantage that it can be recovered and reused.

6 is a diagram for explaining a packaging machine, and FIG. 7 is a diagram for explaining a freezer.

1, 6 and 7, the post-processing step (S40) includes at least one of a step of packaging a block (hereinafter a packaging step) and a step of refrigerated storage of the block (hereinafter, a cold storage step).

The packaging step may be performed by the packaging machine 41, and the packaging machine 41 is conventional in the relevant field, and a more detailed description thereof will be omitted.

The refrigeration storage step may be performed by the freezer 42 .

Figure 8 is a view for explaining the control panel of the pellet manufacturing apparatus, Figure 9 is a view for explaining an additional embodiment of the present invention.

8 and 9, the pellet manufacturing apparatus 2 may include a monitoring unit including a terminal for outputting control state information in real time.

The above-described control state information may include, for example, pressure, temperature, etc. inside the expansion chamber. After checking the control state information output through the monitoring unit in real time, the user can control the pellet manufacturing apparatus (2).

On the other hand, a situation in which a specific part is enlarged and viewed in detail on the output terminal screen is required. For example, if you want to enlarge and view a portion (eg, “A” in FIG. 9 ) in which the temperature is displayed on the output terminal screen, it is necessary to enlarge the area including the portion in which the temperature is displayed.

In particular, the need to enlarge a specific area on an output screen is more necessary for the elderly with presbyopia.

In order to satisfy the above requirements, a client including an enlarged interface for enlarging the selected area Z3 on the terminal screen may be installed in the terminal.

Conventionally, when you want to enlarge a specific area, you can increase the screen size by tapping the touch screen (terminal screen) several times or by adjusting the distance between two fingers while touching the touch screen with two fingers (for example, thumb and index finger). control method was used.

When the touch screen is tapped several times, not only the part to be enlarged but also other parts are enlarged, so it is often not possible to check the part to be enlarged and checked on one screen.

Also, there is a problem in that it is difficult to grip a terminal (eg, a smart phone) when the distance between the two fingers is adjusted while the touch screen is touched with two fingers.

The enlargement interface is designed to overcome the problems of the conventional method, so that an area to be enlarged can be output on one screen, but enlarged by touching only one finger.

To describe the magnification interface in more detail, the magnification interface outputs the first touched starting point Z1 on the terminal screen, and dragging it when dragged (moving a finger, etc. while touching the terminal screen) at the starting point Z1. A dotted line Z11 is output along the path (refer to [A] in FIG. 9).

In addition, after the zoom interface is dragged from the starting point Z1 (a finger touching the touch screen is dragged while touching the screen), the touch is released in a state where the starting point Z1 is not touched again (the terminal screen is touched). When the touch is not performed with a finger or the like), the re-click icon Z2 may be output at the rear end of the dotted line Z11 (see [B] of FIG. 9 ).

In addition, the enlarged interface may output a solid line Z12 along the dotted line Z11 when the re-click icon Z2 is touched for more than a preset time (eg, about 3 seconds) (see [ in FIG. 9 ). B]).

By outputting a solid line Z12 along the dotted line Z11, a user using the enlarged interface can visually confirm whether the re-click icon Z2 has been touched for more than a preset time. That is, it is enough to touch the re-click icon Z2 along the dotted line Z11 until a solid line Z12 is output.

If the re-click icon Z2 is not generated or the re-click icon Z2 is not touched for more than a preset time, the output dotted line Z11 may be deleted.

Thereafter, the enlarged interface may output a solid line Z12 along a drag path when dragged from the re-click icon Z2 (a finger touching the touch screen is dragged while touching the screen). That is, when dragged from the starting point Z1, a dotted line Z11 is output along the drag path (first drag path), and when dragged from the re-click icon Z2, along the drag path (second drag path) A solid line Z12 is output (refer to [B] of FIG. 9 ).

Afterwards, the enlarged interface is dragged from the re-click icon Z2 and when the starting point Z1 is touched, the space formed by the solid line Z12 is set as the selected area Z3, and the selected area Z3 can be enlarged by a preset magnification (see [C] of FIG. 9 ).

Exemplarily, the preset magnification may be a magnification at which the selected region Z3 has a maximum size within a limit in which the selected region Z3 can be output on one screen of the screen of the output terminal.

When the non-selected area Z4 is touched while the selected area Z3 is enlarged and output, the screen before the selected area Z3 is enlarged may be returned.

As such, the magnification interface can enlarge a specific area with only one finger. Since the area to be enlarged can be set by touch and drag operations, the user can accurately set the area to be enlarged and output it on one screen. may be

In addition, in the magnification interface, a solid line Z12 is output along a dotted line Z11 only when the re-click icon Z2 is touched for a preset time, and the selected area Z3 is specified through this solid line Z12. For this reason, there is an advantage in that a part of the screen output from the terminal can be prevented from being enlarged when the terminal screen is touched due to unintentional attachment.

As such, even when the terminal is touched with an unintentional operation, a separate start icon for generating the starting point Z1 is not required because the part output on the terminal screen is not enlarged, and thus a separate operation for operating the start icon is not required. Since it is not necessary, there is an advantage that the part to be enlarged can be more easily specified.

The present invention described above with reference to the accompanying drawings is capable of various modifications and changes by those skilled in the art, and such modifications and changes should be construed as being included in the scope of the present invention.

Tank: 1 Pellet Maker: 2
Discharge: 21 Block Maker: 3
Form: 31 Press: 32
Packing Machine: 41 Freezer: 42
Guide member: 5 Tip bottom: 51
Bottom bottom: 52 Front side wall: 53
Rear end side wall: 54 Anti-shattering part: 55
Inclined plate: 6 Holes: 61

Claims (4)

Storage step of storing liquid carbonic acid in the tank (S10);
A pellet manufacturing step (S20) of cooling and molding the liquid carbonic acid using a pellet manufacturing apparatus to produce pellets;
Block manufacturing step (S30) of manufacturing the pellets into blocks using a block manufacturing apparatus including a press for pressing the pellets accommodated in the mold and the pellets accommodated in the mold; and
A post-processing step (S40) comprising at least one of the step of packaging the block and the step of refrigerated storage of the block;
including,
The pellet manufacturing apparatus includes a discharge unit provided at the rear end of the die to provide a discharge path of the pellets,
The front end is disposed below the rear end of the discharge unit and is inclined downward toward the rear end, the rear end bottom portion is provided at the rear end of the front end bottom part and the width decreases toward the rear end and is inclined downward, respectively, one end and the other end of the front end bottom a tip side wall portion protruding upward from the; A rear end side wall portion protruding upward from one end and the other end of the rear end bottom portion, a connecting part in contact with the upper portion of the discharge portion, and a spaced part extending downwardly from the connecting part to the front end side and spaced apart from the lower portion of the discharge portion Pellet transport step (S25) carried out by a guide member including a scattering prevention section including;
Dry ice product manufacturing method, characterized in that it further comprises. delete The method according to claim 1,
a block transfer step (S35) having a front end provided on the rear end of the block manufacturing apparatus, and performed by an inclined plate inclined downward toward the rear end;
further comprising,
The method for manufacturing a dry ice product, characterized in that the inclined plate has a plurality of through holes formed therein. 4. The method according to claim 3,
The pellet manufacturing apparatus further includes a monitoring unit including a terminal for outputting control state information in real time,
The terminal is installed with a client including an enlarged interface for enlarging the selected area on the terminal screen,
The enlarged interface outputs a starting point touched for the first time on the terminal screen, outputs a dotted line along a drag path when dragged from the starting point, and returns to the rear end of the dotted line when the touch is released while the starting point is not touched Outputs a click icon, and outputs a solid line along the dotted line when the re-click icon is touched for more than a preset time, and outputs a solid line along a drag path when the re-click icon is dragged from the re-click icon A dry ice product manufacturing method, characterized in that when the starting point is touched by being dragged in the , a space formed by a solid line is set as the selected area, and the selected area is enlarged by a preset magnification.

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