Heating core of volcanic ash high-efficiency food-grade heating bag

Abstract

The invention relates to a heating core of a volcanic ash high-efficiency food-grade heating bag. The heating core is prepared by mixing the following substances in parts by weight with nitrogen charge: 5-25 parts of volcanic ash, 10-35 parts of desulfurized nanoscale calcium oxide, 20-40 parts of sodium chloride, 10-30 parts of alumina and 30-50 parts of ferric oxide. The heating core has high heating value, long heating time, low cost and no pollution of reaction products.

Description

technical field [0001] The invention relates to the field of heating packs, in particular to a heating core of a volcanic ash high-efficiency food-grade heating pack. Background technique [0002] With the accelerated pace of people's life, many people are busy with work and have no time to cook, or they don't want to cook dishes at home alone during holidays. At this time, instant food with high-efficiency heating packs can bring us convenience and speed; and now Many people like outdoor camping and hiking, and some even stay overnight in deep mountains and old forests. In virgin forests, there is no power supply and open flames are strictly prohibited. At this time, it is a very happy thing to be able to eat a steaming meal outdoors far away from home , These heating instant foods do not need power supply, no open flame, they can automatically heat up just by adding water, and can deliver steaming and delicious food to people. People use it under conditions of travel and ...

AI Technical Summary

Problems solved by technology

For example, patent CN200710121281.6 discloses a production method of "a non-flame heating agent", which is mainly prepared by mixing aluminum powder, sodium sulfate, calcium oxide and sodium hydroxide according to a certain ratio, but sodium hydroxide is easy to absorb water and get damp , the heating pack produced is easy to self-heat during the production process, which not only wastes energy, but also is inconvenient to make and operate

Patent CN201310145025.6 disclosed "a kind of Al-KMnO 4 -MnO2 self-heating material preparation method", the preparation method is mainly made by mixing aluminum powder, potassium permanganate, manganese dioxide and fillers such as diatomaceous earth and tartaric acid in a certain proportion, but this product is used The proportion of aluminum powder and potassium permanganate is too high, which makes the production cost very high. Although the calorific value is high, a large amount of pungent smell will be released during the reaction process. The overflowing potassium permanganate is flammable and explosive, and there are unsafe factors , and the reaction products will pollute the environment

At present, most heating agents on the market have some peculiar smell, and are easy to pollute the environment, and even some heating packs do not provide enough heat to heat food