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Forest grassland fire-proof agent and preparation method thereof

A technology of fire retardant and raw material, applied in fire protection equipment and other directions, can solve problems such as poor fire extinguishing efficiency and fire extinguishing effect, and achieve the effects of good fire prevention effect, simple and fast manufacturing, and good stability.

Inactive Publication Date: 2008-02-20
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extinguishing effect of 20% bischofite solution is about the same as that of 15-18% ammonium phosphate fertilizer solution
[0019] At present, there are many types of forest fire extinguishing agents, but they are all used for fire extinguishing after a fire occurs. There are no reports at home and abroad on the prevention of forest fires

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 1) Prepare raw materials according to the following weight ratio:

[0052] Demineralized water 30kg

[0053] Phosphoric acid (85% concentration) 20kg

[0054] Urea (content 99%) 15kg

[0055] Catalyst 0.1kg

[0056] Among them, the catalyst is a light yellow-green powder prepared by the Environmental Protection Flame Retardant Technology Center of the School of Materials Science and Technology, Beijing Forestry University. By adding 1 weight part of tin chloride, 2 weight parts of copper sulfate, 1 weight part of sodium chloride, and 1 part by weight, 1 part by weight of aluminum sulfate, 1 part by weight of boric acid and 2 parts by weight of zinc chloride are uniformly ground and mixed.

[0057] In addition, washing powder can be used as the penetrating agent, and acid scarlet 3R can be selected as the coloring agent. The purpose of adding Acid Scarlet 3R to the fire retardant is to mark the location where the fire retardant is sprayed during application, so that ...

Embodiment 2

[0073] 1) Prepare raw materials according to the following weight ratio:

[0074] Demineralized water 23kg

[0075] Phosphoric acid (concentration is 85%) 15kg

[0076] Urea (content 99%) 12kg

[0077] Catalyst: 0.08kg

[0078] The catalyst is the same as in Example 1.

[0079] 2) Take the phosphoric acid in the raw material and add it to the reaction kettle, stir and heat at the same time, control the stirring speed to 50 rpm, and raise the temperature to 50°C;

[0080] 3) Add all the urea in the reactor, and continue to stir the mixture of phosphoric acid and urea at the same time, so that the material is distributed and heated evenly;

[0081] 4) When the temperature rises to 110°C, slowly and evenly add the catalyst into the reaction kettle to make the mixture react;

[0082] 5) Continue heating until the temperature reaches 130°C, control the stirring speed at 60 rpm, observe the reaction phenomenon while heating, as the temperature rises, the light green liquid grad...

Embodiment 3

[0094] 1) Prepare raw materials according to the following weight ratio:

[0095] Demineralized water 41kg

[0096] Phosphoric acid (concentration is 85%) 30kg

[0097] Urea (content 99%) 20kg

[0098] Catalyst: 0.16kg

[0099] Among them, the catalyst is a light yellow-green powder prepared by the Environmental Protection Flame Retardant Technology Center of the School of Materials Science and Technology, Beijing Forestry University. The raw materials include 0.8 parts by weight of tin chloride, 2.5 parts by weight of copper sulfate, 1.2 parts by weight of sodium chloride, ferric chloride 0.8 parts by weight, 0.8 parts by weight of aluminum sulfate, 0.8 parts by weight of boric acid, and 1.5 parts by weight of zinc chloride were uniformly ground and mixed.

[0100] 2) Take the phosphoric acid in the raw material and add it to the reaction kettle, stir and heat at the same time, control the stirring speed to 70 rpm, and raise the temperature to 60°C;

[0101]3) Add urea in...

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Abstract

The invention discloses a fire-proofing agent and the preparing method thereof. The fire-proofing agent comprises the raw materials with the following weight mixing ratios: phosphoric acid 15 to 30; carbamide 12 to 28; activator 0.08 to 0.2. The fire-proofing agent of the invention is prepared into liquor or powder under the polyreaction of the phosphoric acid and the carbamide under the action of the activator. The invention has the advantages of simple and rapid preparing method, low manufacturing cost and convenient usage so that the fire-proofing agent has good fire proofness and extinguishing effect with good adhesiveness and penetrability and lasting fire-proofing effect. When being sprayed on the vegetation such as the trees and the grasses in advance, the fire-proofing agent of the invention can radically prevent the happening of fire so as to protect the precious forest and grassland resources. With good stability and being not influenced by high temperature or low temperature, the fire-proofing agent of the invention is applicable to the territorial environment in different temperature conditions; the fire-proofing agent has long storage life with 5 years powder storage life and more than 2 years liquor storage life.

Description

technical field [0001] The invention relates to a preparation for preventing fire occurrence or delaying fire development and spread and a preparation method thereof, especially a preparation for preventing forest and grassland fire occurrence and spread and a preparation method thereof. Background technique [0002] Although human society has entered the 21st century with rapid development of science and technology, the ancient and realistic problem of forest fire control has not been well resolved so far. Especially in recent decades, due to the worldwide population expansion, accelerated industrialization process, the impact of human activities in forests has intensified, and the risk of forest fires has increased. The defense and control of forest fires has received widespread attention from all countries. The occurrence of forest fires has deep natural and social factors. Affected by abnormal climate, high temperature and drought, forest fires occur frequently all over ...

Claims

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Application Information

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IPC IPC(8): A62D1/00A62D1/06
Inventor 李光沛于志明李建章
Owner BEIJING FORESTRY UNIVERSITY
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