KR100346043B1 - Portable Foods Exothermic Container - Google Patents

Abstract

The present invention relates to a portable food heating container that can be used for hunting, fishing, mountain climbing, fire fighting, disaster recovery, forest protection services, construction sites, watching sports, and more specifically, made of aluminum foil embedded between synthetic resin and synthetic resin. After heat-sealing the rim of the heat generating package main body to form a central inner wall with an open bottom to form a concave portion for the interior of the food packaging container, to form a space portion on both sides, and to form a handle portion on the upper side, A liquid bag containing a liquid heating element containing a certain amount of water, a heat generating accelerator, and a boiling point modifier, and a heating bag containing a solid heating element containing calcium oxide and anhydrous magnesium chloride, and a tear string is attached to the liquid bag. It is sealed in the upper cutout, and the liquid bag is cut out with a cutting string so that the liquid phase heating element is in the solid phase in the heating bag. By mixing with the heating element to generate the heat of hydration reaction and the heat of neutralization reaction, it is possible to heat or heat the food packaging container inserted in the concave portion.

Description

Portable Foods Exothermic Container

The present invention uses the heat of hydration reaction and the heat of neutralization, hunting, fishing, mountain climbing, firefighting, disaster recovery, forest protection services, construction sites, portable food that can be used during watching the event or Y2K disaster, emergency food for natural disasters, etc. It relates to a portable food heating container that can be heated or cooked simply and conveniently.

In general, when hunting, fishing, hiking, watching sports, etc., foods cannot be cooked and eaten due to environmental pollution or ignition.For this reason, it is necessary to bring portable food such as lunch boxes to allow access to public places. There is a situation. By the way, the portable food such as the lunch box can not be used when the weather is cold, because the cold can not be eaten in a cold state, the taste of the food is not greatly felt, and moreover, it is common for most people to eat the food warm There is a need for a heating element that satisfies the desire.

Conventionally proposed heating elements using quicklime include Korean Patent Publication No. 1992-210 'Heating Composition', Korean Patent Publication No. 1998-0158702 'Solid Fuel for Leisure Food and Manufacturing Method thereof', Japanese Patent Publication No. 7-26704 As in 'Exothermic Composition of Thermal Encapsulation', food packaged in packs is heated to a certain temperature within a certain time using a hydration reaction heat generated by the reaction between calcium oxide and water, but within a relatively short time at a high temperature. There is not enough heat to heat the portable food effectively at high temperatures. That is, the heat generated from the existing heating element mainly uses only the heat generated by the hydration reaction between quicklime (CaO) and water (H ₂ O), so food cannot be heated to a high temperature. Due to the various processes such as the process, the production cost is relatively high, which leads to an increase in cost, and the addition of a heat retardant and various additives greatly reduces the thermal efficiency for a given unit weight, and the weight and volume of the heating element and water are large. The problem of being very inconvenient to carry is pointed out. In particular, when looking at the portable food heating container using the conventional heating element, the heating element is housed in a lower portion of the outer container of a certain size, and the food container packed with food is placed thereon and installed on one side of the container in which the heating element is stored. The water bag is cut out with a lanyard to allow water to be mixed with the heating element, thereby allowing the heating element to generate heat. As described above, the conventional portable food heating container has a large weight and volume of the heating element and water, which is inconvenient to carry, and also heats only the lower side of one side of the food container when the heating element generates heat. It is pointed out that the heating up to the noodles requires a sufficient time, and sometimes the heating of the upper surface of the food is not sufficient, so that the heating or cooking of the food cannot be efficiently performed.

An object of the present invention is to provide a light, easy to carry and to heat the entire food quickly and evenly so that the food can be sufficiently heated to a high temperature within a short time.

The present invention is to reduce the weight than the conventional heating element by using not only the heat of the hydration reaction but also the heat of the neutralization, while using a heating element having a high calorific value, the technical task to effectively heat food.

The present invention for achieving the above object is to heat-sealed the edge of the heat generating package body made of a built-in aluminum foil between the synthetic resin and the synthetic resin and then to form a central inner wall of the lower opening to form a recess for the interior of the food packaging container A space portion is formed on both sides, and a handle portion is formed on the upper side, and a liquid bag containing a liquid heating element in which a predetermined amount of water, a heat accelerator, and a boiling point modifier is mixed in the space portions on both sides, and includes calcium oxide and anhydrous magnesium chloride. A heating bag with a built-in solid-state heating element is built-in, attaching a cutting string to the liquid bag, seals it in the upper cutting portion of the handle part, and cuts the liquid bag with the cutting string. By causing the heat of reaction to be generated, the food packaging container inserted into the indent It is to be heated.

1 is a partially cutaway perspective view of the present invention

2 is a cross-sectional view of the present invention

3 is a cross-sectional view of the use state of the present invention.

4 is a front view of the present invention;

5 is a temperature change graph by the heating element of the present invention

<Description of Symbols for Major Parts of Drawings>

10: carrying case 20: heat generating body

21: inner wall 22: recessed part

23,24: space portion 25: handle portion

26 ', 27': Liquid phase heating element 26,27: Liquid bag

28 ', 29': Solid-state heating element 28,29: Heating bag

30: food packaging container 40, 41: cutting string

As shown in FIG. 1, the present invention is convenient to store and carry the container of the present invention, and is portable with a synthetic resin coated on paper for the purpose of protecting the user's human body from water vapor generated when heat is generated. It is used by storing the heating bag body 20 in the case 10. The present invention, which is used in the carrying case 10, is used to heat seal the rim of the heat generating package main body 20 having heat resistance and impact resistance, which is formed by embedding an aluminum thin plate between the synthetic resin and the synthetic resin, and then open the center downward. The inner wall 21 is formed to form the concave inlet portion 22 for the food packaging container 30, space portions 23 and 24 are formed on both sides, and a handle portion 25 is formed on the upper side. Liquid envelopes 26 and 27 incorporating liquid heating elements 26 'and 27' in which a predetermined amount of water, a heating accelerator and a boiling point modifier are mixed in the space portions 23 and 24 on both sides, and calcium oxide and anhydrous chloride. Magnesium-containing solid-state heating elements (28 ', 29') is a built-in heating bag (28, 29) with a built-in, and the straps (40, 41) attached to the liquid bag (26) (27) handle It is sealed in the upper cutout portion 25 'of the portion 25, and the liquid bags 26 and 27 are cut out by the cutting strings 40 and 41 to form the liquid phase heating element 26' and 27 '. ) Is mixed with the solid-state heating element (28 ', 29') in the heating bag (28, 29) to generate the heat of hydration reaction and neutralization reaction, food packaging containing the rice or side dishes, etc. The container 30 can be heated or cooked. In the above, the bottom of each of the liquid bag (26) (27) is heat-sealed to the lower inner wall of the inside of the main body 20, the hole 26 '(27') below the center of the liquid bag (26) (27) Winding through the tear string (40) (41) to the top and bottom of the liquid bag (26) (27) and then attached to the upper end of the handle portion 25 of the tear string (40) (41) of one side (25) Heat seal within '). The upper ends of the cutting strings 40 and 41 are fixed to the wide fixing piece 50 so that the fixing piece 50 is heat sealed to the cutting part 25 ', and the cutting groove 25' ) And pull the fixing piece 50 to cut the holes 26 'and 27' in the lower center of the liquid bags 26 and 27 and the cutting strings 40 and 41 wound around the upper and lower outer periphery. Tearing off the central part of the liquid bag (26, 27) consisting of a plastic bag (at this time, the lower end of the liquid bag is heat-sealed in the body and is still attached), thereby releasing the liquid bag (26) (27). The heat generation of the hydration reaction and the heat of neutralization by mixing the liquid phase heating elements 26 'and 27' in the heating element with the solid phase heating elements 28 'and 29' in the heat generating bag 28 and 29 made of water-soakable paper material. This is generated, this heat is delivered to the food packaging container 30 in the inlet portion 22 is warmed.

On the other hand, the present invention improves the performance of the heating element by using the heat of hydration reaction of calcium oxide, the heat of neutralization reaction of calcium hydroxide, the heat of hydration reaction of anhydrous magnesium chloride. That is, instead of using an exothermic retardant and other additives, a neutralization heat generating agent is added, and calcium hydroxide (Ca (OH) ₂ ) is formed when reacted with quicklime as well as the heat of hydration resulting from the reaction of calcium oxide and anhydrous magnesium chloride with water. It generates a heat of neutralization reaction by adding an acid that can react with it to increase the maximum amount of heat. Looking at the reaction scheme related to the heating element of the present invention as follows.

1) Heat of Hydration Reaction from Calcium Oxide and Water

CaO + H ₂ O ↔ Ca (OH) ₂ + Heat (65KJ / mol)

2) Generation of neutralization heat from reaction of calcium hydroxide with acid

Ca (OH) ₂ + 2H ⁺ ↔ Ca ²⁺ + H ₂ O + Heat (115KJ / mol)

3) Heat of Hydration Reaction from Magnesium Chloride and Water

MgCl ₂ + ↔ MgCl ₂ H ₂ O + Heat (32KJ / mol-152KJ / mol)

The heating element of the present invention obtained through such a reaction formula uses heat of hydration reaction and heat of neutralization at the same time, thereby increasing the calorific value per unit weight and simultaneously reducing the weight of the product, and using water generated in the neutralization reaction, thereby reducing the weight of water. It uses a boiling point modifier instead of calcium chloride and magnesium chloride, which is used as an antifreeze agent or anti-swelling agent, to increase the boiling point of the solution. In winter, the freezing point will not be frozen.

This invention will be described in more detail.

The present invention utilizes a heat of hydration reaction and a heat of neutralization, and is a solid-state heating element (28 ') (29') made by mixing 70-95% by weight of calcium oxide and 15-30% by weight of anhydrous magnesium chloride, an exothermic adjuvant, in the form of powder and particles. 70 to 95% by weight of water, 5-20% by weight of phosphoric acid or sulfuric acid, nitric acid, hydrochloric acid, perchloric acid or a mixture thereof as an exothermic promoter (neutralization heat generating agent), glycerin or ethylene glycol, triethylene glycol, A heating element is obtained by mixing liquid phase heating elements 26 'and 27' made by mixing 5-20% by weight of 1-3-propanediol with a weight ratio of 1: 0.8-1.3.

In the above, calcium oxide and anhydrous magnesium chloride are pulverized limestone having a diameter of 5-10 Cm, and then calcined to dissolve in water. Irregular acicular particles obtained by filtering out insoluble particles, filtering out precipitate, and calcining, Powdered highly active calcium oxide and anhydrous magnesium chloride are used. That is, the raw materials of the solid-state heating elements 28 'and 29' are made of limestone and magnesium chloride. When limestone contains a large amount of impurities, the heating efficiency is not good and the food cannot be heated efficiently. As a means of purifying, the present invention is applied through mechanical and chemical purification. In other words, mechanical refining is to grind limestone, calcinate it, and then vibrate in the shake to select specific particles in the upper layer to use as a solid phase pyrogen source, and chemical refining is calcined to limestone, and then water is added to insoluble solid phase. After removal, the precipitated portion of the aqueous solution is dried and calcined to be used as a part of a solid phase raw material. Anhydrous magnesium chloride used as part of the other solid-state heating elements 28 'and 29' is used after heating the hydrated magnesium at 250 ° C to remove water molecules. Acetone or diethyl ether is sprayed on the calcium oxide powder generated in the process of crushing the limestone raw material, and then compressed and dried at 150 ° C. to use anhydrous magnesium chloride.

By the way, in addition to the solid-state heating elements 28 'and 29' prepared above, the preparation of the liquid-phase heating elements 26 'and 27' is carried out to hydrate the reaction between calcium oxide and anhydrous magnesium chloride in 70-95% by weight of distilled water. It is obtained after adding 5-20% by weight of phosphoric acid or sulfuric acid, nitric acid, hydrochloric acid, perchloric acid, or a mixture thereof as a neutralizing heat generating agent that can promote and neutralize, and heat is suddenly generated when the liquid heating element is mixed with a solid heating element. There is a risk of burns due to the water vapor generated at this time, since a large amount of water vapor is generated and leaks to the outside, so a large amount of heat is lost to the outside, thereby controlling the boiling point and at the same time controlling the heating and maintaining an appropriate exothermic reaction rate. Glycerine or ethylene glycol, triethylene glycol, 1-3-pro, acting as a pyrogen control agent, boiling point modifier, antifreeze agent to prevent freezing in winter 5-20 wt% of pandiol is mixed to prepare a liquid pyrogen. It is preferable to heat the solid heating element and the liquid heating element prepared in this way by mixing at a weight ratio of 1: 0.8-1.3.

<Example 1>

5-10 Cm diameter limestone, pulverized, calcined, dissolved in water, insoluble particles were filtered out, and then precipitated and dried to remove the hydroxyl groups at 600 ° C. A solid pyrogenic source was prepared by mixing 80% by weight of active calcium oxide and 20% by weight of granular anhydrous magnesium chloride by heating the hydrated magnesium chloride at 250 ° C., 80% by weight of water, 10% by weight of phosphoric acid, and 10% by weight of glycerin. After mixing the% to produce a liquid phase heating source, the solid phase heating source 70g and the liquid phase heating source 70g the result of the hydration reaction and the neutralization reaction is shown in Figure 5 the results of measuring the temperature change per unit time. According to the graph, the heat of reaction rapidly rises to 300 ° C between 1 and 2 minutes, and the temperature is continuously maintained for 3 to 9 minutes, but after 9 minutes, the temperature is gradually lowered and continued for almost 60 minutes or more. It can be seen that the temperature is maintained at 60 ° C. to 60 ° C., so that the food can be sufficiently cooked while the portable food is heated or heated. By adjusting the amount of phosphoric acid in the above it can be used by appropriately selecting the temperature of the reaction heat (for example 160 ℃-300 ℃). And, the reaction scheme of Example 1 is as follows.

CaO + H ₂ O ↔ Ca (OH) ₂ + Heat

Ca (OH) ₂ + H ₃ PO ₄ ↔ CaHPO ₄ + H ₂ O + Heat

<Example 2>

After crushing the raw limestone of 5-10 Cm in diameter, the particles having a diameter of 0.1-0.3 Cm were calcined at 900 ° C for 30 minutes, and shaken for 10 minutes in a shake to remove 1/3 of the lower layer. Hydrated and neutralized by mixing 70 g: 70 g of a solid phase pyrogen obtained by mixing% by weight and 20% by weight of anhydrous magnesium chloride, and a liquid pyrogen obtained by mixing 70% by weight of water, 15% by weight of phosphoric acid and 15% by weight of glycerin. The result was similar to the graph result of FIG.

<Example 3>

After spraying acetone or diethyl etherol on the powdered calcium oxide, compression molding was carried out, and the solid phase pyrogen obtained by mixing 80% by weight of solid calcium oxide and 20% by weight of anhydrous magnesium chloride, dried at 150 ° C, and 70% by weight of water , 20g by weight of phosphoric acid, 10% by weight of glycerin in the liquid phase heating source obtained by mixing 70g: 70g hydration reaction and neutralization reaction was similar to the graph result of FIG.

As described above, the present invention utilizes a solid heating element 28 'and 29' and a liquid heating element 26 'and 27' using the heat of hydration and the heat of neutralization. 50, pull out the openings 26 'and 27' in the lower center of the liquid bags 26 and 27 and the cutting strings 40 and 41 wound around the upper and lower outer periphery of the liquid bags 26 and 27. The heat generating bag made of a paper material in which the liquid heating elements 26 'and 27' in the liquid bags 26 and 27 are immersed in water by tearing the central portion to let the liquid heating elements 26 'and 27' flow out. The heat of hydration reaction and the heat of neutralization reaction are generated by mixing with the solid-state heating elements 28 'and 29' in (28) and (29), and this heat is transferred to the food packaging container 30 in the recess 22 to warm. . That is, the outer circumferential surface of the food packaging container 30 is sufficiently heated by the heating element, and both sides of the food packaging container 8 are kept in an interview state on the inner wall 21 of the main body 20 of the packaging table. 30) The whole is heated quickly and evenly.

The present invention uses the heat of hydration reaction and the heat of neutralization at the same time can increase the calorific value per unit weight and at the same time reduce the weight of the product, and by using the water generated in the neutralization reaction can reduce the weight of water, as an antifreeze or anti-expansion agent Instead of using calcium chloride or magnesium chloride, the boiling point modifier is used to increase the boiling point of the solution and to reduce the amount of water vapor that flows out to the reaction, thereby allowing the reaction to occur sufficiently, thereby reducing the weight of the solution. Ease of portability, heat efficiency of the unit weight can be effectively heated or cooked by food, fast and evenly heat the food has a very useful effect in eating portable food, especially outdoors in winter.

Claims (3)

Built-in food packaging container 30 by sealing the rim of the heat-sealing packaging body main body 20 having heat resistance and impact resistance formed by embedding a thin aluminum sheet between the synthetic resin and the synthetic resin The concave inlet part 22 is formed, and the space part 23 and 24 are formed in both sides, and the handle part 25 is formed in the upper part, but the water inside the space part 23 and 24 of both sides is formed. Liquid bag 26 (27) and bulk material limestone incorporating a liquid heating element 26 '(27') containing 95% by weight, 5-20% by weight of a heating accelerator, 5-20% by weight of a boiling point modifier. Calcined and calcined and calcined 70-95% by weight of calcium oxide, anhydrous magnesium chloride heating aid 5-30% by weight of a solid-state heating element (28 ') (29') containing a mixture of powder and granules Inside the upper cutout 25 'of the handle 25 by attaching the cutting straps 40 and 41 to the liquid bags 26 and 27. The seals are cut and the liquid bags 26 and 27 are cut by the cutting strings 40 and 41 so that the liquid heating elements 26 ′ and 27 ′ are solid state heating elements 28 ′ and 29 in the heating bags 28 and 29. ') And the heat of the hydration reaction and neutralization reaction by mixing with, so as to heat and heat cooking food packaging container (30) inserted in the inlet portion 22, characterized in that the portable food heating container. The bottom of each liquid bag (26) (27) is heat-sealed to a lower inner wall in the packaging body (20), the hole 26 "below the liquid bag (26) (27) ( 27 ") through the top and bottom of the cutting strap (40) (41) to the liquid bag (26) (27), and then attach the upper end of each of the cutting strap (40) (41) on one side A portable food heating container, characterized in that it is heat sealed in the portion (25 '). delete