Preparation method of efficient fire extinguishing superfine dry powder extinguishing agent

Abstract

The invention discloses a preparation method of an efficient fire extinguishing superfine dry powder extinguishing agent. The preparation method comprises the following steps of uniformly mixing monoammonium phosphate, ammonium chloride, light calcium carbonate, dolomite powder, dicyandiamide, phenolic resin, magnesium chloride, borax, copper acetate and trimethyl ethyoxyl silane, carrying out warming, spraying methyl phenyl silicone oil in a stirring state, and uniformly stirring the mixture to obtain a mixed material; and crushing the mixed material, adjusting the temperature, and stirring and drying the mixed material to obtain the high-efficiency fire extinguishing superfine dry powder extinguishing agent. According to the preparation method of the efficient fire extinguishing superfine dry powder extinguishing agent, the water repellent property, fluidity, the jetting property and the anti-caking property of the obtained dry powder extinguishing agent are excellent, the price is low, furthermore, the specific surface area is large, fire extinguishing efficiency is high, the use amount is less during the extinguishing process of the fire disaster with the same level, and the fire extinguishing cost is low.

Description

technical field

[0001] The invention relates to the technical field of dry powder fire extinguishing agent, in particular to a method for preparing an efficient fire extinguishing superfine dry powder fire extinguishing agent. Background technique

[0002] Among many types of fire extinguishing agents, powder has been widely used in fighting solids, liquids, flammable gases, etc. Types of fires occupy an important position in the field of fire extinguishing agents today.

[0003] However, due to the small specific surface area of ​​traditional powder fire extinguishing agents, the efficiency of capturing free radicals or active groups is not high, and the fire extinguishing ability is limited. Contents of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a method for preparing an ultra-fine dry powder fire extinguishing agent with high efficiency for fire extinguishing. The surface area is large, ...

Examples

Embodiment 1

[0017] A method for preparing an ultrafine dry powder fire extinguishing agent for efficient fire extinguishing, comprising the steps of:

[0018] S1, 80kg monoammonium phosphate, 25kg ammonium chloride, 6kg light calcium carbonate, 6kg dolomite powder, 2kg dicyandiamide, 10kg phenolic resin, 1kg magnesium chloride, 1.5kg borax, 0.4kg copper acetate, 0.4kg trimethyl ethyl Mix the oxysilane evenly, raise the temperature to 65°C, spray 8kg of methylphenyl silicone oil into the stirring state and stir evenly to obtain the mixed material;

[0019] S2. Crush the mixed material until 70wt% of the material has a particle size of 20-30 μm, adjust the temperature to 95°C, stir for 10 minutes, the stirring speed is 2000r / min, and dry to a water content of 0.08wt%, to obtain an ultra-fine dry powder fire extinguishing with high efficiency agent.

Embodiment 2

[0021] A method for preparing an ultrafine dry powder fire extinguishing agent for efficient fire extinguishing, comprising the steps of:

[0022] S1, 120kg monoammonium phosphate, 15kg ammonium chloride, 10kg light calcium carbonate, 4kg dolomite powder, 4kg dicyandiamide, 8kg phenolic resin, 3kg magnesium chloride, 0.5kg borax, 0.8kg copper acetate, 0.2kg trimethyl ethyl Mix the oxysilane evenly, raise the temperature to 75°C, spray 4kg of methylphenyl silicone oil into the stirring state and stir evenly to obtain the mixed material;

[0023] S2. Crush the mixed material until 85wt% of the material has a particle size of 20-30 μm, adjust the temperature to 85°C, stir for 20 minutes, the stirring speed is 1800r / min, and dry to a water content of 0.14wt%, to obtain an ultra-fine dry powder for fire extinguishing with high efficiency agent.

Embodiment 3

[0025] A method for preparing an ultrafine dry powder fire extinguishing agent for efficient fire extinguishing, comprising the steps of:

[0026] S1, 90kg monoammonium phosphate, 22kg ammonium chloride, 8kg light calcium carbonate, 5.5kg dolomite powder, 2.5kg dicyandiamide, 9.5kg phenolic resin, 1.5kg magnesium chloride, 1.2kg borax, 0.5kg copper acetate, 0.35kg Mix trimethylethoxysilane evenly, heat up to 68°C, spray 7kg of methylphenyl silicone oil into the stirring state and stir evenly to obtain the mixed material;

[0027] S2. Crush the mixed material until 75wt% of the material has a particle size of 10-20 μm, adjust the temperature to 92°C, stir for 12 minutes, the stirring speed is 1950r / min, and dry to a water content of 0.1wt%, to obtain an ultrafine dry powder for fire extinguishing with high efficiency agent.

technical field

[0001] The invention relates to the technical field of dry powder fire extinguishing agent, in particular to a method for preparing an efficient fire extinguishing superfine dry powder fire extinguishing agent. Background technique

[0002] Among many types of fire extinguishing agents, powder has been widely used in fighting solids, liquids, flammable gases, etc. Types of fires occupy an important position in the field of fire extinguishing agents today.

[0003] However, due to the small specific surface area of ​​traditional powder fire extinguishing agents, the efficiency of capturing free radicals or active groups is not high, and the fire extinguishing ability is limited. Contents of the invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a method for preparing an ultra-fine dry powder fire extinguishing agent with high efficiency for fire extinguishing. The surface area is large, ...

Examples

Embodiment 1

[0017] A method for preparing an ultrafine dry powder fire extinguishing agent for efficient fire extinguishing, comprising the steps of:

[0018] S1, 80kg monoammonium phosphate, 25kg ammonium chloride, 6kg light calcium carbonate, 6kg dolomite powder, 2kg dicyandiamide, 10kg phenolic resin, 1kg magnesium chloride, 1.5kg borax, 0.4kg copper acetate, 0.4kg trimethyl ethyl Mix the oxysilane evenly, raise the temperature to 65°C, spray 8kg of methylphenyl silicone oil into the stirring state and stir evenly to obtain the mixed material;

[0019] S2. Crush the mixed material until 70wt% of the material has a particle size of 20-30 μm, adjust the temperature to 95°C, stir for 10 minutes, the stirring speed is 2000r / min, and dry to a water content of 0.08wt%, to obtain an ultra-fine dry powder fire extinguishing with high efficiency agent.

Embodiment 2

[0021] A method for preparing an ultrafine dry powder fire extinguishing agent for efficient fire extinguishing, comprising the steps of:

[0022] S1, 120kg monoammonium phosphate, 15kg ammonium chloride, 10kg light calcium carbonate, 4kg dolomite powder, 4kg dicyandiamide, 8kg phenolic resin, 3kg magnesium chloride, 0.5kg borax, 0.8kg copper acetate, 0.2kg trimethyl ethyl Mix the oxysilane evenly, raise the temperature to 75°C, spray 4kg of methylphenyl silicone oil into the stirring state and stir evenly to obtain the mixed material;

[0023] S2. Crush the mixed material until 85wt% of the material has a particle size of 20-30 μm, adjust the temperature to 85°C, stir for 20 minutes, the stirring speed is 1800r / min, and dry to a water content of 0.14wt%, to obtain an ultra-fine dry powder for fire extinguishing with high efficiency agent.

Embodiment 3

[0025] A method for preparing an ultrafine dry powder fire extinguishing agent for efficient fire extinguishing, comprising the steps of:

[0026] S1, 90kg monoammonium phosphate, 22kg ammonium chloride, 8kg light calcium carbonate, 5.5kg dolomite powder, 2.5kg dicyandiamide, 9.5kg phenolic resin, 1.5kg magnesium chloride, 1.2kg borax, 0.5kg copper acetate, 0.35kg Mix trimethylethoxysilane evenly, heat up to 68°C, spray 7kg of methylphenyl silicone oil into the stirring state and stir evenly to obtain the mixed material;

[0027] S2. Crush the mixed material until 75wt% of the material has a particle size of 10-20 μm, adjust the temperature to 92°C, stir for 12 minutes, the stirring speed is 1950r / min, and dry to a water content of 0.1wt%, to obtain an ultrafine dry powder for fire extinguishing with high efficiency agent.