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Environment-friendly water-based fire extinguishant for forest fire fighting airplane and preparation method of environment-friendly water-based fire extinguishant

An environment-friendly, fire-extinguishing technology, applied in fire protection equipment and other directions, can solve the problems of irregular shape, poor fluidity and incompatibility of powder, and achieve the effect of reducing load weight, good fire-extinguishing effect and protecting ecological balance.

Active Publication Date: 2017-12-12
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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  • Environment-friendly water-based fire extinguishant for forest fire fighting airplane and preparation method of environment-friendly water-based fire extinguishant
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  • Environment-friendly water-based fire extinguishant for forest fire fighting airplane and preparation method of environment-friendly water-based fire extinguishant

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preparation example Construction

[0033] The present invention is used for the preparation method of the environment-friendly water-based fire extinguishing agent for 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, keeping the temperature rise of the powder not more than 10°C; then add the colorant, mix and stir for 4-8 minutes, and mix evenly to obtain the composition powder; 80-120 parts of water-absorbent resin, 4-20 parts of fluidity promoter, and 0.1-1.0 part of colorant.

[0035] (2) Driven by compressed nitrogen or inert gas, the composition powder is injected into the water by means of spraying through pipeline transportation. After the gas jet enters the water, a large number of tiny bubbles of nitrogen or inert gas are formed. The molecular water absorbent resin is suspended in water in the form of a single particle and fully contacts with water, and absorbs a large number of water molec...

Embodiment 1

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

[0043] Preparation and application: Take 100kg of 160-mesh polymer water-absorbent resin, take the average particle size as 5μm, and the density as 0.8g / cm 3 2kg of glass microbeads, take 2kg of melamine cyanurate powder with an average particle size of 10μm, add it to the mixer for 4min mixing and stirring, so that the three powders are evenly mixed, and the temperature rise of the powder is kept not more than 10 ℃. Then, 0.1 kg of nanoscale iron oxide red was added, and the mixture was stirred for 5 minutes to generate a pink composition powder with good fluidity.

[0044] Take 22 kg of the composition powder and fill it into the metal tank of the spray device, and fill the metal ...

Embodiment 2

[0046] The present invention is an environment-friendly water-based fire extinguishing agent for forest fire fighting aircraft. The fire extinguishing agent includes composition powder and water. 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 at one time, and the injection amount of the composition powder in the water tank of the fire helicopter is 23kg.

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

[0048] Take 95kg of the composition powder and inject it into 4 metal tanks ...

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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 fighting, 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, the fire spreads rapidly, and the terrain between the mountains is complex, which hinders the passage of people and vehicles, making it very difficult to fight and often cause heavy losses. With the growing forest resources in my country, the load of combustibles in forests continues to increase. In addition, with the warming of the climate, forest fires have entered a period of high incidence. In recent years, large-scale forest fires have occurred in the United States, Canada, and many European countries, causing heavy losses. Among the various methods of fighting forest fires, the use of aircraft to drop large flows of water and water-based chemical fire extingui...

Claims

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Application Information

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IPC IPC(8): A62D1/00
CPCA62D1/0014A62D1/0064
Inventor 周建民黄婷杨航刘彬郭娜玉
Owner SHANDONG GUOTAI TECH
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