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A kind of environment-friendly water system fire extinguishing agent for forest fire fighting aircraft and preparation method thereof

An environment-friendly, fire extinguishing agent technology, applied in the direction of fire prevention equipment, etc., can solve the problems of irregular shape, poor powder fluidity, unsuitability, etc., and achieve the effect of reducing load, good fire extinguishing effect, and protecting ecological balance

Active Publication Date: 2021-01-05
SHANDONG GUOTAI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the polymer water-absorbing resin particles have an amorphous structure, and the shape of the crushed particles is very irregular, resulting in poor fluidity of the powder, which is not suitable for transportation through pipelines; and when the polymer water-absorbing resin powder is input into the water tank of the forest fire fighting aircraft, The powder is easily agglomerated when it meets water, and it is difficult to disperse the powder evenly in water to form a hydrogel fire extinguishing agent by conventional input methods

Method used

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  • A kind of environment-friendly water system fire extinguishing agent for forest fire fighting aircraft and preparation method thereof
  • A kind of environment-friendly water system fire extinguishing agent for forest fire fighting aircraft and preparation method thereof
  • A kind of environment-friendly water system fire extinguishing agent for forest fire fighting aircraft and preparation method thereof

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preparation example Construction

[0033] The present invention is used for the preparation method of the environment-friendly water system fire extinguishing agent of forest fire fighting aircraft, and the steps are as follows:

[0034](1) Mix and stir the polymer water-absorbent resin and the fluidity promoter for 4-8 minutes, keep the temperature rise of the powder not exceeding 10°C; then add the colorant, mix and stir for 4-8 minutes, and mix uniformly to prepare the composition powder; 80-120 parts of water-absorbing resin, 4-20 parts of fluidity promoter, and 0.1-1.0 parts of coloring agent.

[0035] (2) Driven by compressed nitrogen or inert gas, the composition powder is injected into water by means of jetting through pipeline transportation. After the gas jet enters the water, a large amount of tiny bubbles of nitrogen or inert gas are formed. The bubbles promote the rapid dispersion of powder particles in water, making high The molecular water-absorbing resin is suspended in water in the form of a si...

Embodiment 1

[0042] The present invention is used for the environment-friendly water-based fire extinguishing agent of forest fire-fighting aircraft. The fire extinguishing agent includes composition powder and water, and the addition ratio of the composition powder in tap water is 0.4%. The injection volume in is 20kg.

[0043] Preparation and application: Take 100kg of 160-mesh polymer water-absorbent resin, take the average particle size of 5μm, and the density of 0.8g / cm 3 Take 2kg of glass microbeads, take 2kg of melamine cyanurate powder with an average particle size of 10μm, add it to the mixer and mix and stir for 4min, so that the three powders are evenly mixed, and the temperature rise of the powder does not exceed 10°C. Then add 0.1 kg of nano-scale iron oxide red, and stir for 5 minutes to generate a pink composition powder with good fluidity.

[0044] Get composition powder 22kg and fill in the metal tank body of injection device, fill in 1.4MPa compressed nitrogen in the met...

Embodiment 2

[0046] The present invention is used for the environment-friendly water-based fire extinguishing agent of forest fire-fighting aircraft. The fire extinguishing agent includes composition powder and water, and the addition ratio of the composition powder in the lake water sucked into the water tank is 0.5%. The water tank can draw 4500L of water from the water surface once, and the injection amount of the composition powder in the water tank of the firefighting helicopter is 23kg.

[0047] Preparation and application: Take 120kg of 200-mesh polymer water-absorbent resin, with an average particle size of 5μm and a density of 0.8g / cm 3 Add 9kg of glass microspheres into the mixer to mix the two powders evenly, keep the temperature rise of the powder not exceeding 10°C, and stir for 6 minutes. Then add 0.6 kg of nano-scale iron oxide red and stir for 5 minutes to generate a pink composition powder with good fluidity.

[0048] Get composition powder 95kg and add and inject in 4 me...

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Abstract

The invention discloses an environment-friendly water-based fire extinguishant for a forest fire fighting airplane and a preparation method of the environment-friendly water-based fire extinguishant. The preparation method comprises the following steps of firstly, mixing and stirring macromolecular water absorbing resin and a flow promoter and keeping the temperature rise of powder to be not higher than 10 DEG C; then adding a colorant to mix and stir to prepare composition powder with good flowability; and injecting the composition powder driven by compressed nitrogen into water by means of pipeline conveyance, wherein jet flows entering the water generate a lot of micro nitrogen bubbles which promote powder particles to be quickly dispersed in water, the single particles are in full contact with water in a suspended form, and the particles absorb a lot of water molecules to quickly generate a hydrogel fire extinguishant which has a very good adhesive force to forest vegetation, so that the fire extinguishing efficiency of the water is greatly enhanced. The hydrogel fire extinguishant does not corrode metal parts of the airplane and is bio-environment-friendly to the forest.

Description

technical field [0001] The invention belongs to the technical field of fire protection, in particular to an environment-friendly water-based fire extinguishing agent for forest fire-fighting aircraft and a preparation method thereof. Background technique [0002] The forest area is large, the fire burns violently, and the fire spreads quickly. In addition, the terrain in the mountains is complicated, and the passage of people and vehicles is blocked. It is very difficult to fight and rescue, often causing heavy losses. With the increasing forest resources in my country, the fuel load in the forest continues to increase, and with the climate warming, forest fires have entered a period of high incidence. In recent years, large-scale forest fires have successively occurred in the United States, Canada, and many European countries, causing heavy losses. Among the various methods of extinguishing forest fires, the use of aircraft to drop large flow of water and water-based chemi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62D1/00
CPCA62D1/0014A62D1/0064
Inventor 杨航黄婷郭娜玉刘彬周建民
Owner SHANDONG GUOTAI TECH