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Dry powder fire-extinguishing agent and manufacturing method thereof

A technology of dry powder fire extinguishing agent and fine powder, which is applied in fire prevention equipment, etc., can solve the problems of waste, high cost, and the failure of sodium bicarbonate to chemically inhibit fire extinguishing, and achieve the effect of saving consumption and reducing costs

Inactive Publication Date: 2007-11-28
湖南省金鼎消防器材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, a considerable part of the more expensive sodium bicarbonate plays a role in fire extinguishing by providing kinetic energy and not playing the role of chemical inhibition of fire extinguishing, which is wasted
Due to the high price of sodium bicarbonate, the cost of traditional dry powder fire extinguishing agent is relatively high

Method used

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  • Dry powder fire-extinguishing agent and manufacturing method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0011] Get the sodium bicarbonate that weight percent is 40, be pulverized to particle size and be more than 360 mesh (at least 70% can cross the sieve of 400 mesh);

[0012] Get the calcium carbonate that weight percent is 50, be pulverized to particle size and be 150 orders;

[0013] The active clay of 3 weight percents;

[0014] The mica powder that weight percent is 3;

[0015] The weight percent is 3.65 hydrophobic silica;

[0016] The weight percentage is 0.35 silicone oil.

[0017] Put the above-mentioned raw materials into a high-speed mixer and stir for 30 minutes, then put them into a reaction tank, and control the temperature and reaction time the same as the traditional ones.

Embodiment 2

[0019] Get the sodium bicarbonate that weight percent is 35, be pulverized to particle size and be 360 ​​orders;

[0020] Get the barium sulfate that weight percent is 58, be pulverized to particle size and be 150 orders;

[0021] The weight percent is the activated clay of 2;

[0022] The mica powder that weight percent is 2;

[0023] Hydrophobic silica of 2.65 percent by weight;

[0024] The weight percentage is 0.35 silicone oil.

[0025] Put the above-mentioned raw materials into a high-speed mixer and stir for 40 minutes, then put them into a reaction tank, and control the temperature and reaction time as traditional ones.

[0026] To the specific proportioning of each component when the present invention is implemented, five embodiments are also provided below, referring to the following table:

[0027]

[0028] In the above table, wt% means percentage by weight.

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Abstract

The present invention discloses one kind of BC powder extinguishing agent and its production process. The BC powder extinguishing agent consists of sodium bicarbonate 35-60 weight portions and calcium carbonate or barium sulfate 30-60 weight portions, as well as supplementary material. Its production process includes the following steps: crushing sodium bicarbonate into 360 mesh over fine powder, crushing calcium carbonate or barium sulfate into 60-360 powder, mixing sodium bicarbonate powder, calcium carbonate or barium sulfate powder and supplementary material in a stirrer, and reaction in a reactor. Compared with traditional BC powder extinguishing agent, the present invention has lowered sodium bicarbonate consumption and reduced material cost.

Description

technical field [0001] The invention relates to a BC dry powder fire extinguishing agent and a manufacturing method thereof. Background technique [0002] For a long time, the BC dry powder fire extinguishing agent used in my country is composed of sodium bicarbonate, hydrophobic components, inert components and other auxiliary materials, of which sodium bicarbonate accounts for more than 82% of the total. Active fire extinguishing effect, on the one hand, its particle size is required to be very small, and its large specific surface area is conducive to chemical inhibition. On the other hand, in order to enter the depth of the flame, the dry powder must have a certain kinetic energy, and the particles must not be too small, otherwise it will still If it does not enter the flame zone, it will be blown away by the hot air flow, reducing the fire extinguishing efficiency. In the traditional BC dry powder fire extinguishing agent, the sodium bicarbonate powder with a small parti...

Claims

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Application Information

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IPC IPC(8): A62D1/00
Inventor 朱劲武王筑南陈永泰何新能彭新年
Owner 湖南省金鼎消防器材有限公司
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