Self-heating food heating agent and preparation method thereof

A heating agent and food technology, applied in the direction of chemical instruments and methods, heat exchange materials, etc., can solve the problems of affecting heating efficiency, long production cycle, and low heat output per unit, so as to simplify the production process, shorten the processing time, and unit The effect of high calorific value

Active Publication Date: 2012-08-15
NO 8511 RES INST OF CASIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of heat agent has been widely used due to the low cost of raw materials, but due to its low unit calorific value, uncontrollable heat generation rate, and easy damp failure, it has gradually withdrawn from the market
[0004] 2. Aluminum water system: At present, this type of heating agent is mainly used in the domestic market. The principle is basically the same, but the processing technology of each company is different, resulting in uneven heating effects.
The shortcomings of the c

Method used

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  • Self-heating food heating agent and preparation method thereof
  • Self-heating food heating agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Components and weight percentages of a self-heating food heating agent: 65% magnesium powder, 25% iron powder, and 10% surfactant.

[0027] Weigh the materials according to the ratio, pour them into the surface modification equipment, set the speed of the equipment at 100 rpm, and process for 2 minutes, so that the materials can be mixed and dispersed evenly. Inert gas is introduced into the surface modification equipment, the material heating device is turned on, the temperature of the material is raised to 60°C, the equipment speed is adjusted to 500 rpm, and the surface modification treatment is carried out, and the processing time is 5 minutes. Liquid nitrogen is passed into the surface modification equipment for rapid cooling, and the material can be discharged when the temperature drops to normal temperature.

[0028] Get this food warming agent 10g and carry out heating test to 250g meal bag. The time required from adding the reaction water to heating of the the...

Embodiment 2

[0030] Components and weight percentages of a self-heating food heating agent: 75% magnesium powder, 20% iron powder, and 5% surfactant.

[0031] Weigh the materials according to the ratio, pour them into the surface modification equipment, set the speed of the equipment at 100 rpm, and process for 2 minutes, so that the materials can be mixed and dispersed evenly. Inert gas is introduced into the surface modification equipment, the material heating device is turned on, the temperature of the material is raised to 60~80°C, the equipment speed is adjusted to 500 rpm, and the surface modification treatment is carried out, and the processing time is 5 minutes. Liquid nitrogen is passed into the surface modification equipment for rapid cooling, and the material can be discharged when the temperature drops to normal temperature.

[0032] Get this food warming agent 10g and carry out heating test to 250g meal package. The time required from adding the reaction water to heating of t...

Embodiment 3

[0034] Components and weight percentages of a self-heating food heating agent: 78% magnesium powder, 17% iron powder, and 5% surfactant.

[0035] Weigh the materials according to the ratio, pour them into the surface modification equipment, set the equipment speed at 150 rpm, and process for 2 minutes to make the materials mix and disperse evenly. Inert gas is introduced into the surface modification equipment, the material heating device is turned on, the temperature of the material is raised to 60~80°C, the equipment speed is adjusted to 400 rpm, and the surface modification treatment is carried out, and the processing time is 5 minutes. Liquid nitrogen is passed into the surface modification equipment for rapid cooling, and the material can be discharged when the temperature drops to normal temperature.

[0036] Get this food warming agent 10g and carry out heating test to 250g meal bag. The time required from adding the reaction water to heating of the thermal agent is 20...

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PUM

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Abstract

The invention relates to a self-heating food heating agent and a preparation method of the self-heating food heating agent; the self-heating food heating agent comprises main components of magnesium powder, iron powder and surface active agent; the preparation method comprises the step of utilizing an effective surface modification technology, leading the magnesium powder and the iron powder to form stable Mg-Fe alloy under the condition that the shapes of magnesium powder particles are not changed so as to form the heating agent. The heating agent not only has the characteristics of high heat efficiency and less dosage of a Mg-Fe system, and is mainly simple in processing technology, high in yield, low in production cost and suitable for the demand of large-scale batch production; and the heating agent is light to carry, and can be used for heating various foods under the condition of no heat source and combustion source.

Description

technical field [0001] The invention belongs to the field of chemical heating materials, in particular to a self-heating food heating agent and a preparation method thereof. Background technique [0002] Food self-heating agents require fast start-up, high heating efficiency, simple use, small size, portability, safety and environmental protection. At present, there are various self-heating technologies at home and abroad, and those that can meet the above requirements and realize large-scale production can be roughly divided into the following categories: [0003] 1. Quicklime: US Patent 6.289.889 discloses a self-heating agent with quicklime as the main raw material. Calcium hydroxide Ca(OH)2 is generated by the reaction of quicklime CaO and water while releasing a lot of heat. This kind of thermal agent is widely used due to the low cost of raw materials, but due to its low unit calorific value, uncontrollable heating rate, and easy to lose moisture, it has been gradual...

Claims

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Application Information

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IPC IPC(8): C09K5/18B22F1/00C22C23/00
Inventor 肖蓉李子繁孙红旗王璐
Owner NO 8511 RES INST OF CASIC
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