Combination of aluminum silicate powder for immediate insulation and fire extinguishing with cooling capabilities and Anti-caking

Abstract

The current fire extinguishing powders are ineffective due to their low weight, which prevents them from properly covering the fire and makes them easily spread by the wind. To solve this, we have developed a new mineral composition by mixing sodium chloride, calcium carbonate, and barium sulfate in specific ratios. These ingredients have unique properties that help in cooling the fire, create a covering layer, and preventing the powder from being displaced. Additionally, we use stearic acid to prevent moisture absorption and aluminum silicate to enhance physical properties and prevent clumping during storage.

Description

Combination of aluminum silicate powder for immediate insulation and fire extinguishing with cooling capabilities and anti-caking

[0001] The fire-extinguishing powder is created by mixing sodium chloride, calcium carbonate, and barium sulfate in specific ratios with a 325-micron mesh size. Sodium chloride cools the fire, calcium carbonate prevents oxygen from reaching the fire, and barium sulfate creates a hard layer to contain the powder. To prevent clumping, a small amount of stearic acid is added. The powder comes in different types with mineral dyes for distinction, and aluminum silicate is used to improve its physical properties and prevent clumping due to humidity.

[0002] A62D 1 / 00

[0003] CN1110619 - Sodium chloride dry powder fire-extinguishing agent and its manufacture method

[0004] The dry-powder fire-extinguishing chemical is prepared through such technological steps as heating a mixture of sodium chloride, powdered calcium carbonate, mica powder and white carbon black to 45-55 centigrade degrees, mixing with active argil and sodium silicate and then with aqueous emulsion of silicone oil, dewatering at 55-65 centigrade degrees, and discharge at 70-80 centigrade degrees, and features anti-humidity property, big covered area after spray, and excellent effect.

[0005] The mentioned invention has used silicon oil to improve the fire extinguishing properties, while the present invention uses different combinations.

[0006] CN106621159 - Super-fine dry powder fire extinguishing agent

[0007] The invention relates to a super-fine dry powder fire extinguishing agent. The super-fine dry powder fire extinguishing agent comprises the raw materials including, by weight percentage, 10-15% of sodium bicarbonate dry powder, 10-15% of potassium salt dry powder, 10-15% of ammonium dihydrogen phosphate dry powder, 10-15% of diammonium phosphate dry powder, 10-15% of phosphoric acid dry powder, 10-15% of amino group dry powder, 8-10% of mica powder, 5-8% of hydrophobic white carbon black powder, 8-10% of polyether-modified silicone oil, 1-3% of magnesium hydroxide powder and 1-3% of aluminum hydroxide powder. The materials are adapted to be matched, and super-fine dry powder fog sprayed out under the effect of pressurizing gas makes contact with and is mixed with flames to extinguish the fire. Compared with a common dry powder fire extinguishing agent, the fire extinguishing capacity of the super-fine dry powder fire extinguishing agent is 8-10 times that of the common dry powder fire extinguishing agent

[0008] The invention above is made from aluminum phosphate, potassium salt, and phosphoric acid, as well as using silicon oil to improve its anti-humidity properties.

[0009] CN106621159 - Super-fine dry powder fire extinguishing agent

[0010] The invention relates to a super-fine dry powder fire extinguishing agent. The super-fine dry powder fire extinguishing agent comprises the raw materials including, by weight percentage, 10-15% of sodium bicarbonate dry powder, 10-15% of potassium salt dry powder, 10-15% of ammonium dihydrogen phosphate dry powder, 10-15% of diammonium phosphate dry powder, 10-15% of phosphoric acid dry powder, 10-15% of amino group dry powder, 8-10% of mica powder, 5-8% of hydrophobic white carbon black powder, 8-10% of polyether modified silicone oil, 1-3% of magnesium hydroxide powder and 1-3% of aluminum hydroxide powder. The materials are adopted to be matched, and super-fine dry powder fog sprayed out under the effect of pressurizing gas makes contact with and is mixed with flames to extinguish fire. Compared with a common dry powder fire extinguishing agent, the fire extinguishing capacity of the super-fine dry powder fire extinguishing agent is 8-10 times that of the common dry powder fire extinguishing agent.

[0011] The invention above includes different ingredients and components like aluminum hydroxide, etc.

[0012] The ingredients sodium chloride, calcium carbonate, and barium sulfate are mixed together in specific ratios and with a 325-micron mesh size to create a fire-extinguishing powder. Sodium chloride cools the fire, calcium carbonate prevents oxygen from reaching the fire, and barium sulfate creates a hard layer to contain the powder. To prevent clumping, stearic acid is added in a small amount. The powder is produced in different types with mineral dyes for distinction. Aluminum silicate is used to improve the physical properties of the powder and prevent clumping due to humidity.

[0013] The existing powders do not cover the fire entirely and this causes problems with fire extinguishing. This is due to the low weight of the powder and that they don’t create a proper layer on the fire area, and the light weight of the powder makes it easy to move with the wind and spreads the fire. This invention aims to increase the new mineral compositions to increase not only the density of the powder but also to solve the mentioned problems.Solution of problem

[0014] First, the sodium chloride, calcium carbonate, and barium sulfate are mixed in the mixer and are mixed with specific ratios with 325micron mesh size, so that they are completely mixed.

[0015] Sodium chloride is used for cooling the fire due to the crystal shape of its molecules which reduces the burning temperature. The sodium chloride has a covering property in the burning area that surrounds the fire and prevents it from being spread.

[0016] The calcium carbonate decomposes at low temperatures and using it with sodium chloride completes the covering property. The calcium carbonate prevents oxygen from reaching the fire and extinguishes it.

[0017] The sulfate groups create a hard layer when decomposing near high temperatures that prevents the powder from being displaced at the fire area. Barium sulfate is used in this composition. The barium sulfate has a high density which makes a heavy layer on the fire.

[0018] The main problem with common powders is that they absorb moisture and make the powder to be clumped. To avoid this from happening, stearic acid is used.

[0019] The stearic acid amount is so low and it is added to the mentioned mixture at the semi-final phase.

[0020] The fire-extinguishing powders are produced in different types and mineral dyes that are inflammable are used for distinguishing them. To improve the physical properties of the powder, aluminum silicate is used. The aluminum silicate lightens the powder and makes it easier to spread.

[0021] The aluminum silicate is anti-humidity and hydrophobic that prevents the powder from being clumped inside the storage.Advantage effects of the invention

[0022] - No absorption of moisture

[0023] – Water repellency

[0024] – resistant to being clumped

[0025] – adhesion

[0026] – the fine size of the particles and extinguishing property

[0027] : illustrates the production process of the fire extinguishing powder

[0028] : 1- the base sodium chloride powder is added to the mixer

[0029] 2- calcium carbonate is then added to the sodium chloride

[0030] 3- adding barium sulfate to increase the density

[0031] 4- adding stearic acid to increase the hydrophobic properties

[0032] 5- adding the dye at this phase to recognize the powder type

[0033] 6- adding aluminum silicate to prevent clumping

[0034] 7- pouring out the final mixture from the mixerExamples

[0035] this powder could be used in capsule packs to extinguish the fire. It covers the whole fire area and the fire is extinguished completely.

[0036] This powder could be used where firefighting supplies are produced and firefighting capsules are recharged. The method of filling the firefighting capsules with this powder is like any other powder and it does not need any filling systems.

Claims

A fire extinguishing powder with a combination of sodium chloride, calcium carbonate, barium sulfate, stearic acid, and aluminum silicate is added to prevent clumping, and mineral dyes for recognizing the powder type.According to the claim. 1, the calcium carbonate prevents oxygen from reaching the fire and extinguishes itAccording to the claim. 2, a hard layer is created when the sulfate groups decompose it prevents the displacement of the powder in the fire area.According to the claim. 1, the barium sulfate is used in this mixtureAccording to the claim. 4, the barium sulfate has high density which makes a heavy layer on the fireTo prevent moisture attraction, stearic acid has been usedTo recognize the powder type, mineral dyes have been usedAccording to the claim. 1, to improve the physical properties, aluminum silicate has been usedAccording to the claim. 8, the aluminum silicate makes the powder lighter, so it spreads more easily in the fire areaAccording to the claim. 9, the aluminum silicate is anti-humidity and hydrophobic that prevents clumping inside the storage.

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