Method for preparing compound fire-extinguishing particulate material

A kind of granular material and composite technology, which is applied in the direction of fire prevention equipment, etc., can solve the problems of long fire extinguishing time and low efficiency, and achieve the effect of large water carrying capacity, low consumption, and prevention of re-ignition

Inactive Publication Date: 2006-02-22
FUJIAN NORMAL UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] In order to overcome the defects of long fire extinguishing time and low efficiency existing in the existing coal mine fire extinguishing technology and method, the present invention provides a kind of water-carrying capacity, high gel strength, non-toxic and tasteless, good wall-attachment performance, fast fire extinguishing speed, Preparation method of composite fire extinguishing granular material with simple operation and moderate comprehensive cost

Method used

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  • Method for preparing compound fire-extinguishing particulate material

Examples

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Embodiment 1

[0014] Dilute 24 kg of potassium hydroxide with a purity of 99.0% with 3 times the amount of distilled water to a solution of 96 kg, place it in the reactor, start the mixer, control the stirring speed at 75r / min, and the temperature in the kettle at 78°C, slowly add 99.7% acrylic emulsion 70kg, after the neutralization reaction for 19min, add 35g sodium lauryl sulfate, stir for 6min, put it in the rotating pan, add 260g potassium bisulfite and 160g ammonium persulfate at the same time to initiate cross-linking polymerization, wait for the reactants After it is a gel, it is cut into particles of φ2.5×3mm in a granulator. After drying at 150℃ in a drying bed, it is placed in a crushing and sieving machine for crushing and sieving to obtain particles with a particle size of 60-100 mesh. Then put it in a high-speed kneader, add 9kg of ammonium octaphase acid with a purity of 98.5% for compound modification. The high-speed kneader has a stirring speed of 500r / min, a temperature of 75℃...

Embodiment 2

[0016] Dilute 22 kg of potassium hydroxide with a purity of 99.5% with 3 times the amount of distilled water to 88 kg of solution, place it in the reactor, start the mixer, control the stirring speed to 75r / min, and the temperature in the kettle to 76°C, slowly add acrylic emulsion with a purity of 99.9% 66kg, after 21min of neutralization, add 25g of sodium lauryl sulfate, stir for 7min, put it in the rotating pan, add 240g of potassium bisulfite and 140g of ammonium persulfate at the same time to initiate cross-linking polymerization. After it is a gel, it is cut into particles of φ2.5×3mm in a granulator. After drying at 150℃ in a drying bed, it is placed in a crushing and sieving machine for crushing and sieving to obtain particles with a particle size of 60-100 mesh. Then put it in a high-speed kneader, add 7kg of ammonium octaphasic acid with a purity of 99.5% for compound modification. The high-speed kneader has a stirring speed of 500r / min, a temperature of 75℃, and a time...

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Abstract

The invention relates to a making method of composite fire-extinguishing particle material in new fire-extinguishing material domain, which is characterized by the following: adapting the potassium hydroxide and acrylic emulsion as the basic raw material; adding sodium lauryl sulfate, potassium bisulfite, ammonium peroxodisulfate and eight looks acid ammonium into the raw material; making the composite fire-extinguishing particle material by neutralization reaction, initiating crosslinking polymerization, dicing, drying, disintegrating, sifting, modifying property compound, measuring and packing. The composite particle material ejects the gelatin with 1:300 qualities mixing to the ignition area, which reduces the temperature of ignition area to inhibit the smog and reaches the goal of quick fire-extinguishing and flame-proof by forming a heat-proof layer and oxygen-proof gelatination layer.

Description

Technical field [0001] The invention relates to the field of new fire extinguishing materials, in particular to a preparation method of composite fire extinguishing particles. The composite fire extinguishing particulate material is particularly suitable for extinguishing fires in coal mines. Background technique [0002] Underground coal mine fire is one of the main disasters of coal mine safety production. Once it happens, it will threaten personal safety and cause heavy losses. In recent decades, countries have attached great importance to coal mine safety production. However, due to insufficient equipment, relatively backward technology, lack of funds and other reasons, coal mine fires are still serious, among which coal seam spontaneous combustion accounts for more than 90%, causing huge economic losses every year. [0003] Major coal-producing countries in the world have conducted a lot of research and application on coal mine fire extinguishing technology and fire extingui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/00
Inventor 张华集张雯肖荔人
Owner FUJIAN NORMAL UNIV
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