Dry powder extinguishing agent with anti-caking performance

Abstract

The invention relates to a fire extinguishing agent, and specifically discloses a dry powder extinguishing agent with anti-caking performance. The dry powder extinguishing agent is prepared from raw materials in parts by weight: 50 to 80 parts of sodium bicarbonate powder, 20 to 34 parts of ammonium phosphate powder, 3 to 9 parts of activated clay, 3 to 7 parts of anti-caking agents, 2.5 to 6.5 parts of lubricant, 2 to 6 parts of hydrophobic white carbon black, 1 to 3 parts of carbonizing expansion agent, 1 to 2.5 parts of melamine and 0.6 to 1.8 parts of containing hydrogen silicone oil. Thedry powder extinguishing agent has excellent anti-caking performance.

Description

technical field

[0001] The invention relates to a fire extinguishing agent, in particular to a dry powder fire extinguishing agent with anti-caking performance. Background technique

[0002] At present, dry powder fire extinguishing agent still occupies the main position of fire extinguishing agent. In order to ensure that the dry powder fire extinguishing agent maintains normal fire extinguishing performance within a certain storage period, it needs to have good fluidity, anti-caking and anti-vibration performance, and electrical insulation performance. Poor water quality and high moisture absorption rate of the base material make the product agglomerate and shorten the shelf life, which needs to be solved urgently. Contents of the invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a dry powder fire extinguishing agent with anti-caking performance. The invention has superior fire extinguishing perform...

Examples

Embodiment 1

[0016] A dry powder fire extinguishing agent with anti-caking performance, its raw materials include by weight: 50 parts of sodium bicarbonate dry powder, 34 parts of ammonium phosphate dry powder, 3 parts of activated clay, 7 parts of anti-caking agent, 2.5 parts of lubricant, hydrophobic 6 parts of white carbon black, 1 part of charcoal expansion agent, 2.5 parts of melamine, 0.6 parts of hydrogen-containing silicone oil.

Embodiment 2

[0018] A dry powder fire extinguishing agent with anti-caking performance, its raw materials include by weight: 80 parts of sodium bicarbonate dry powder, 20 parts of ammonium phosphate dry powder, 9 parts of activated clay, 3 parts of anti-caking agent, 6.5 parts of lubricant, hydrophobic 2 parts of white carbon black, 3 parts of charcoal expansion agent, 1 part of melamine, 1.8 parts of hydrogen-containing silicone oil;

[0019] Wherein, the anti-caking agent is prepared according to the following process: add basalt suspension to the chitosan solution, stir, add acrylic acid activation solution, react at room temperature, add absolute ethanol, stand still, and centrifuge to obtain a precipitate, The precipitate is washed, freeze-dried, ground and sieved to obtain the anti-caking agent.

Embodiment 3

[0021] A dry powder fire extinguishing agent with anti-caking performance, its raw materials include by weight: 65 parts of sodium bicarbonate dry powder, 26 parts of ammonium phosphate dry powder, 5 parts of activated clay, 5 parts of anti-caking agent, 4 parts of lubricant, hydrophobic 4 parts of white carbon black, 2 parts of charcoal expansion agent, 1.7 parts of melamine, 1.2 parts of hydrogen-containing silicone oil;

[0022] Wherein, the anti-caking agent is prepared according to the following process: add basalt suspension to the chitosan solution, stir at 1200r / min for 4h, add acrylic acid activation solution, react at room temperature for 55h, add absolute ethanol, statically Place for 35 hours, centrifuge at 6500r / min for 45 minutes to obtain the precipitate, wash the precipitate with absolute ethanol 3 times, freeze-dry, grind through a 250-mesh sieve to obtain an anti-caking agent;

[0023] The weight ratio of chitosan, basalt, and acrylic acid activation solution...

technical field

[0001] The invention relates to a fire extinguishing agent, in particular to a dry powder fire extinguishing agent with anti-caking performance. Background technique

[0002] At present, dry powder fire extinguishing agent still occupies the main position of fire extinguishing agent. In order to ensure that the dry powder fire extinguishing agent maintains normal fire extinguishing performance within a certain storage period, it needs to have good fluidity, anti-caking and anti-vibration performance, and electrical insulation performance. Poor water quality and high moisture absorption rate of the base material make the product agglomerate and shorten the shelf life, which needs to be solved urgently. Contents of the invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a dry powder fire extinguishing agent with anti-caking performance. The invention has superior fire extinguishing perform...

Examples

Embodiment 1

[0016] A dry powder fire extinguishing agent with anti-caking performance, its raw materials include by weight: 50 parts of sodium bicarbonate dry powder, 34 parts of ammonium phosphate dry powder, 3 parts of activated clay, 7 parts of anti-caking agent, 2.5 parts of lubricant, hydrophobic 6 parts of white carbon black, 1 part of charcoal expansion agent, 2.5 parts of melamine, 0.6 parts of hydrogen-containing silicone oil.

Embodiment 2

[0018] A dry powder fire extinguishing agent with anti-caking performance, its raw materials include by weight: 80 parts of sodium bicarbonate dry powder, 20 parts of ammonium phosphate dry powder, 9 parts of activated clay, 3 parts of anti-caking agent, 6.5 parts of lubricant, hydrophobic 2 parts of white carbon black, 3 parts of charcoal expansion agent, 1 part of melamine, 1.8 parts of hydrogen-containing silicone oil;

[0019] Wherein, the anti-caking agent is prepared according to the following process: add basalt suspension to the chitosan solution, stir, add acrylic acid activation solution, react at room temperature, add absolute ethanol, stand still, and centrifuge to obtain a precipitate, The precipitate is washed, freeze-dried, ground and sieved to obtain the anti-caking agent.

Embodiment 3

[0021] A dry powder fire extinguishing agent with anti-caking performance, its raw materials include by weight: 65 parts of sodium bicarbonate dry powder, 26 parts of ammonium phosphate dry powder, 5 parts of activated clay, 5 parts of anti-caking agent, 4 parts of lubricant, hydrophobic 4 parts of white carbon black, 2 parts of charcoal expansion agent, 1.7 parts of melamine, 1.2 parts of hydrogen-containing silicone oil;

[0022] Wherein, the anti-caking agent is prepared according to the following process: add basalt suspension to the chitosan solution, stir at 1200r / min for 4h, add acrylic acid activation solution, react at room temperature for 55h, add absolute ethanol, statically Place for 35 hours, centrifuge at 6500r / min for 45 minutes to obtain the precipitate, wash the precipitate with absolute ethanol 3 times, freeze-dry, grind through a 250-mesh sieve to obtain an anti-caking agent;

[0023] The weight ratio of chitosan, basalt, and acrylic acid activation solution...