KR20160028739A - A mesh net used in device for manufacturing dry ice - Google Patents

A mesh net used in device for manufacturing dry ice Download PDF

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Publication number
KR20160028739A
KR20160028739A KR1020140117658A KR20140117658A KR20160028739A KR 20160028739 A KR20160028739 A KR 20160028739A KR 1020140117658 A KR1020140117658 A KR 1020140117658A KR 20140117658 A KR20140117658 A KR 20140117658A KR 20160028739 A KR20160028739 A KR 20160028739A
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KR
South Korea
Prior art keywords
dry ice
mesh
filter
producing
production apparatus
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KR1020140117658A
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Korean (ko)
Inventor
예상철
강동욱
신정훈
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(주)위비즈
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Priority to KR1020140117658A priority Critical patent/KR20160028739A/en
Publication of KR20160028739A publication Critical patent/KR20160028739A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/50—Carbon dioxide
    • C01B32/55—Solidifying

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

The present invention relates to a mesh net used in a dry ice production apparatus, and can improve the production efficiency of dry ice produced relative to liquefied carbon dioxide gas (L-CO 2 ) supplied to a dry ice production apparatus, A mesh network for use in a dry ice producing apparatus capable of improving the structure of a mesh net for screening dry ice snow contained in a vaporized gas and facilitating production cost and production of a dry ice production apparatus. The mesh net according to the present invention can be implemented in both dry ice manufacturing apparatuses for producing dry ice having a square block, a nugget, a pellet, or a plate shape.

Description

[0001] The present invention relates to a mesh net used in a dry ice manufacturing apparatus,

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a mesh net used in all dry ice producing apparatuses for producing dry ice having a square block, a nugget, a pellet, and a disk.

Dry ice is carbon dioxide which sublimes and solidifies into gas immediately under pressure. The sublimation point of dry ice is -78.5 ° C (-109.3 ° F), and the heat of vaporization (ΔHsub) at -78.5 ° C is 571 kJ / kg . When sublimation to gas and low temperatures are provided, it is cooler than ice and does not leave moisture when the state changes. Dry ice is an effective coolant.

Dry ice is used to keep fruits, vegetables, dairy products, meats, fish, blood, organs and organisms fresh. On the other hand, dry ice in the form of a pellet is used to remove foreign substances (contaminants) adhering to the surface of the object to be cleaned by causing peeling or cracking from the surface of the object to be cleaned.

BACKGROUND ART [0002] Currently, a dry ice production apparatus is a dry ice production apparatus for producing dry ice in the form of a square block, a nugget, a pellet, or a plate.

Korean Patent Laid-Open Publication No. 1993-0004726 discloses a dry ice manufacturing apparatus that ejects liquefied carbon dioxide gas (L-CO 2 ) into a dry ice molding chamber to produce dry ice snow, And pressed into a press piston to form a solid dry ice.

Korean Patent Laid-Open Publication No. 2008-0004089 discloses a dry ice manufacturing apparatus that ejects liquefied carbon dioxide (L-CO 2 ) gas into a hollow portion of a molding die to produce dry ice snow, And compressed using a cylinder to form a solid dry ice.

The liquid carbon dioxide gas (L-CO 2 ) is generated by a short thermal expansion, whether it is a block, a nugget, a pellet, or a dry ice producing device having a plate shape It is necessary to compress the dry ice snow. However, in the process of compressing dry ice snow (or even before compression), dry ice snow is vaporized and the inside of the molding chamber is filled with gas. If such a vaporized gas is not discharged to the outside, the compression process is not smoothly performed, so that a vaporizing gas outlet is formed on the side wall of the dry ice producing apparatus.

An exhaust pipe is connected to the exhaust gas outlet so as to exhaust the exhaust gas to the user's desired position. Since the vaporized gas discharged through the exhaust gas outlet contains dry ice snow, a mesh network is required to filter dry ice snow, which is included in vaporized gas, from being exhausted to the outside. Respectively.

However, if the mesh net can not properly filter dry ice snow, that is, if the amount of dry ice snow discharged to the outside is too large, the production efficiency of dry ice produced relative to the supplied liquefied carbon dioxide (L-CO 2 ) becomes low. Conventional dry ice makers take a production order from a user and manufacture and deliver it. Therefore, while studying to improve the dry ice production efficiency, the mesh network is not considered at all.

The present applicant has made extensive efforts to manufacture a dry ice automatic vending machine capable of generating and selling dry ice according to the quantity and size desired by a user in a fishing boat, a swimming pool, an auto camping ground, Research is underway. In order to improve the manufacturing cost of dry ice production equipment and the manufacturing efficiency, it is necessary to increase the production efficiency of dry ice produced from L-CO 2 supplied to the mesh net .

Korean Unexamined Patent Publication No. 2008-0004089 (published January 2008, 2008) Korean Unexamined Patent Publication No. 1993-0004726 (published March 23, 1993)

The present invention has been proposed in the background as described above, and an object of the present invention is to provide a dry ice producing apparatus capable of increasing the production efficiency of dry ice produced relative to liquefied carbon dioxide (L-CO 2 ) To provide a mesh network to be used in the network.

It is another object of the present invention to provide a dry ice producing device capable of improving the structure of a mesh net for screening dry ice snow contained in a vaporized gas discharged during molding, Mesh network.

In order to solve the above problems, a mesh net used in a dry ice producing apparatus according to an aspect of the present invention includes a first mesh portion having a clearance hole, a filter for filtering dry ice snow that has passed through the first mesh portion, And a second mesh portion having a clearance hole for discharging vaporized gas that has passed through the filter.

The apparatus for manufacturing a dry ice using the mesh net according to the present invention comprises a tubular molding chamber having an inner space in which a liquefied carbon dioxide gas (L-CO 2 ) inlet and a vaporizing gas outlet are formed on a side wall, And an exhaust pipe mounted to a vaporizing gas outlet of the tubular forming chamber and exhausting vaporized gas generated during dry ice molding to the outside, and a mesh net used in the dry ice producing apparatus is installed inside the exhaust pipe.

The dry ice producing apparatus using the mesh net according to the present invention is characterized in that the dry ice producing apparatus includes a dry ice producing apparatus for producing dry ice having any one of a rectangular block, a nugget, a pellet, Wherein the first and second mesh portions of the mesh net used in the dry ice producing apparatus are characterized in that the size of the clearance hole is 5 占 퐉 or more and 50 占 퐉 or less.

According to a further aspect of the present invention, the first and second mesh portions are formed of any one material selected from the group consisting of a thin film, a fabric, and a steel material embodied by polyvinylidene fluoride (PVDF), and the filter is implemented by a sand filter do.

According to the present invention, a mesh network provided in an exhaust pipe of a dry ice producing apparatus includes a first mesh portion having a clearance hole, a filter for filtering dry ice snow that has passed through the first mesh portion, And the second mesh portion having the clearance hole, it is possible to improve the production efficiency of the dry ice produced relative to the liquefied carbon dioxide gas (L-CO 2 ).

In addition, the mesh network according to the present invention has a structure in which a sand filter is integrally formed between the first and second mesh portions to filter the dry ice snow contained in the vaporized gas discharged at the time of molding The production cost and production of the dry ice production apparatus can be facilitated.

1 is an exemplary view for explaining an apparatus 100 for manufacturing a dry ice according to the present invention.
FIG. 2 is an exemplary view for explaining the inside of the dry ice manufacturing apparatus shown in FIG. 1. FIG.
3 is an exemplary view for explaining a mesh net installed in the exhaust pipe 130 of the dry ice manufacturing apparatus according to the first embodiment of the present invention.
4 is an exemplary view for explaining a mesh net 410 installed in the exhaust pipe 130 of the dry ice manufacturing apparatus according to the second embodiment of the present invention.
FIG. 5 is an exemplary view for explaining a filter 413 included in the mesh network 410 shown in FIG.
.

The dry ice manufacturing apparatus to which the mesh net according to the present invention is mounted is implemented as a dry ice manufacturing apparatus for manufacturing dry ice having a square block, a nugget, a pellet, or a plate shape . The square block (block) may be, for example, a lump of 10 to 20 kg. The nugget is, for example, a bar having a diameter of 10 to 16 mm and a length of 15 to 30 mm, and the granular form (pellet) is a small granule having a diameter of 2.5 to 3.5 mm and a length of 3 to 8 mm, Disk) has a shape of, for example, a square 150 × 150 mm 2 and a thickness of 10 mm to 15 mm.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a mesh network used in a dry ice manufacturing apparatus according to the present invention will be described in detail with reference to the accompanying drawings. In the present specification, the structure and installation position of the mesh net will be described with reference to a dry ice production apparatus for producing dry ice having a rectangular lump (block) shape. However, the mesh net used in the dry ice manufacturing apparatus according to the present invention is not limited to a square lump (block) type but also a dry ice manufacturing apparatus for producing dry ice having nugget, pellet, Lt; / RTI >

FIG. 1 is an exemplary view for explaining a dry ice manufacturing apparatus 100 according to the present invention, and FIG. 2 is an exemplary view for explaining the inside of the dry ice manufacturing apparatus shown in FIG. 1 and 2, the apparatus 100 for manufacturing a dry ice according to the present invention includes a tubular molding chamber 110, a moving member 120, an exhaust pipe 130, and a discharge unit 140 Can be implemented.

In the cylindrical shaping chamber 110, a liquefied carbon dioxide gas (L-CO 2 ) inlet port 111 and a vaporizing gas outlet port (112 in FIG. 2) are formed on the side wall, and a press mechanism 113 is vertically moved Respectively. As shown in Fig. 2, the cylindrical shaping chamber 110 is provided with an opening (not shown) which is open at the bottom so as to discharge the solidified dry ice in the lump state in which the piston 113b is molded by the action of the cylinder 113a of the first press mechanism. (Not shown).

The moving member 120 moves the receiving plate 121 for receiving the dry ice snow generated by adiabatically expanding liquefied carbon dioxide gas (L-CO 2 ) in the tubular forming chamber 110, Open or seal the opening. The moving member 120 and the receiving plate 121 are coupled to each other by a connecting joint 122. The connecting joint 122 includes a first axis through which the moving member 120 moves and a second axis along which the receiving plate 121 moves. A joint that connects the first and second shafts to transmit the power of the movable member 120 to the receiving plate 121 is implemented. For example, connection joint 122 may be implemented as a universal joint.

The lower portion of the receiving plate 121 is provided with a push rod 121 for pushing and discharging the solid dry ice in the lump state discharged through the opening of the tubular forming chamber 110 while moving together with the receiving plate 121 in accordance with the operation of the moving member 120, (123) is mounted.

Referring to FIG. 3, the exhaust pipe 130 is installed at a position where the vaporizing gas outlet 111 of the tubular forming chamber 110 is formed, and exhausts vaporized gas generated during dry ice molding to the outside. 3, the first mesh net 311 is mounted near a vaporizing gas outlet 112 formed on a side wall of the tubular forming chamber 110, and the second mesh net 312 is connected to the first mesh net 311 at a predetermined distance As shown in FIG.

The size of the clearance holes of the first and second mesh portions 311 and 312 is preferably designed in consideration of the efficiency of discharging the vaporized gas and filtering the dry ice snow. Among the papers currently published, according to the description of "Development of CO 2 Phase Change Nozzle for Nuclear Decontamination", the particle size of dry ice snow is reported to be several 탆 to 20 탆. Therefore, the size of the clearance holes of the first and second mesh portions 311 and 312 is preferably 5 占 퐉 or more and 50 占 퐉 or less.

As a result of the study, it was found that when the size of the clearance holes of the first and second mesh portions 311 and 312 was 5 mu m or less, the discharge of the vaporized gas was not smooth. When the size was 50 mu m or more, And the amount of dry ice snow contained in the exhaust gas was discharged to the outside.

The first and second mesh portions 311 and 312 may be formed of any one of a thin film formed of polyvinylidene fluoride (PVDF), a fabric, a steel sheet, a resin sheet, a combination filter, a sintered metal filter, .

Findings, the first and second mesh portion of dry ice that is generated compared to 311 and 312 to the first mesh network 311. When using the one than, a predetermined amount of liquefied carbon dioxide gas (L-CO 2) using the It was found that sheep and quality were good.

In addition, since the first mesh portion 311 can not completely filter the dry ice snow, the second mesh portion 312 filters the dry ice snow once passed through the first mesh portion 311, When the dry ice snow filtered by the mesh portion 312 is accumulated in the space portion 313 between the first and second mesh portions 311 and 312 and the space portion 313 between the first and second mesh portions 311 and 312, It is determined that the filter 313 functions as a filter. As shown in FIG. 3, the method of mounting the first and second mesh units 311 and 312 on the exhaust pipe 130 has a disadvantage in that it increases manufacturing cost and makes it difficult to manufacture a dry ice production apparatus.

FIG. 4 is an exemplary view for explaining a mesh network 410 installed in an exhaust pipe 130 of a dry ice manufacturing apparatus according to a second embodiment of the present invention, FIG. 5 is a cross-sectional view of the mesh network 410 shown in FIG. And is an illustrative diagram for explaining an included filter 413.

4 (b), the mesh net 410 includes a first mesh portion 411 having a clearance hole, a filter 413 for filtering the dry ice snow that has passed through the first mesh portion 411, And a second mesh portion 412 having a clearance hole for discharging vaporized gas that has passed through the filter 413.

The sizes of the clearance holes of the first and second mesh portions 411 and 412 are designed in consideration of the efficiency of discharging the vaporized gas and filtering the dry ice snow. Among the papers currently published, according to the description of "Development of CO 2 Phase Change Nozzle for Nuclear Decontamination", the particle size of dry ice snow is reported to be several 탆 to 20 탆. Therefore, the size of the clearance holes of the first and second mesh portions 411 and 412 is preferably 5 占 퐉 or more and 50 占 퐉 or less.

As a result of the study, when the size of the clearance holes of the first and second mesh portions 411 and 412 is 5 mu m or less, the exhaust gas is not smoothly exhausted. When the size is 50 mu m or more, And the amount of dry ice snow contained in the exhaust gas was discharged to the outside.

The first and second mesh portions 411 and 412 may be formed of any one of a thin film, a fabric, a steel sheet, a resin sheet, a filter made of sintered metal or a filter made of polyvinylidene fluoride (PVDF) . The filter 1353 is selected in consideration of the capability of filtering the dry ice snow and the exhausting performance of the vaporized gas, and can be preferably implemented as a sand filter.

5, the sand filter 413 may be formed by stacking a first sand layer 4132, a second sand layer 4134, a third sand layer 4136, and a gravel bottom layer 4138 have. The grades and sizes of the sand constituting the first sand layer 4132, the second sand layer 4134 and the third sand layer 4136 vary in quality and diameter considering the efficiency of discharging vaporized gas and filtering dry ice snow .

The mesh net 410 is fabricated by integrally forming the sand filter 413 between the first and second mesh portions 411 and 412 so that the mesh net 410 is used in the dry ice production apparatus It can be supplied commercially as a whole. The mesh net 410 having the sand filter 413 integrally formed between the first and second mesh portions 411 and 412 may be used as a square block or a nugget or a pellet ), And dry ice production apparatuses for producing dry ice having a plate shape (disk shape).

When a dry ice manufacturing apparatus is manufactured using the mesh net 410 in which a sand filter 413 is integrally formed between the first and second mesh portions 411 and 412, It is not necessary to mount a plurality of mesh portions, such as a plurality of mesh portions, on the exhaust pipe.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents. Will be clear to those who have knowledge of.

100: Device for manufacturing dry ice
110: tubular forming chamber
111: Liquefied carbon dioxide gas (L-CO 2 ) inlet
112: vaporizing gas outlet
113: Press mechanism
113a: cylinder 113b: piston
114: opening
120: moving member 121: receiving plate
122: connecting joint 123:
130: Exhaust pipe 140:
311: first mesh portion 312: second mesh portion
313:
410: mesh network
411: first mesh portion 412: second mesh portion
413: Filter

Claims (4)

In a mesh net used in a dry ice production apparatus,
The apparatus for producing dry ice according to the present invention comprises a cylindrical shaping chamber having a liquefied carbon dioxide gas (L-CO 2 ) inlet and a gas exhaust port formed on a side wall thereof and having an internal space in which a press mechanism is moved; And an exhaust pipe mounted to the exhaust port and exhausting vaporized gas generated during dry ice molding to the outside,
In the mesh network,
An exhaust pipe disposed inside the exhaust pipe,
A first mesh portion having a clearance hole;
A filter for filtering the dry ice snow that has passed through the first mesh portion;
A second mesh portion having a clearance hole for discharging vaporized gas passing through the filter;
Wherein the mesh network is used in a dry ice production apparatus. The method according to claim 1,
In the dry ice producing apparatus,
1. A dry ice producing apparatus for producing dry ice having any one of a rectangular block, a nugget, a pellet, and a disk,
The first and second mesh portions may be formed of a metal,
The size of the clearance hole is 5 탆 or more and 50 탆 or less,
Wherein the mesh is used in a dry ice production apparatus. The method according to claim 1 or 2,
The first and second mesh portions may be formed of a metal,
A thin film made of polyvinylidene fluoride (PVDF), a fabric, and a material made of steel,
Wherein the mesh is used in a dry ice production apparatus. The method according to claim 1 or 2,
The filter may be a sand filter,
Wherein the mesh is used in a dry ice production apparatus.
KR1020140117658A 2014-09-04 2014-09-04 A mesh net used in device for manufacturing dry ice KR20160028739A (en)

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KR1020140117658A KR20160028739A (en) 2014-09-04 2014-09-04 A mesh net used in device for manufacturing dry ice

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102351137B1 (en) * 2021-07-15 2022-01-14 (주)빅텍스 Apparatus manufacturing dryice nugget
KR102351138B1 (en) * 2021-09-13 2022-01-14 (주)빅텍스 Apparatus manufacturing dryice nugget
KR102441493B1 (en) * 2022-01-11 2022-09-07 주식회사 무한상사 Method for manufacturing dry ice

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080004089A (en) 2006-07-04 2008-01-09 이재혁 Apparatus for making refrigerant from lco2

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080004089A (en) 2006-07-04 2008-01-09 이재혁 Apparatus for making refrigerant from lco2

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102351137B1 (en) * 2021-07-15 2022-01-14 (주)빅텍스 Apparatus manufacturing dryice nugget
KR102351138B1 (en) * 2021-09-13 2022-01-14 (주)빅텍스 Apparatus manufacturing dryice nugget
KR102441493B1 (en) * 2022-01-11 2022-09-07 주식회사 무한상사 Method for manufacturing dry ice

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