31results about How to "Good resistance to reflammation" patented technology

The invention discloses a dry powder extinguisher containing modified smectite powder, which is prepared from the following raw materials in parts by weight: 70-90 parts of modified smectite powder, 5-10 parts of mica powder, 10-15 parts of zinc sulfide hydrate, 3-5 parts of calcium hydroxide, 5-8 parts of magnesium stearate, 3-5 parts of nitrogenous silicon oil, 2-3 parts of expandable graphite, 2-3 parts of magnesite, 2-3 parts of urea, 5-8 parts of calcium lignosulphonate, 3-5 parts of bamboo charcoal fiber, 2-3 parts of industrial essence, 2-4 parts of zinc borate, 1-3 parts of chlorinated paraffin and 8-10 parts of kieselguhr. The extinguisher has the advantages of high fire extinguishing efficiency, high moisture resistance, favorable after-combustion resistance, environment friendliness and simple production technique, and is suitable for various fire hazards.

The invention discloses a gas-solid composite dry powder extinguishing agent and a preparation method therefor. The method is characterized by the steps as follows: dissolving urea in an ethanol-water mixed solution with a volume ratio of ethanol to water being 1:2-5, the concentration of magnesium ion being 0.2-1.2 mol/L and the molar ratio of the urea to the magnesium ion being 2-6:1; heating the mixed solution at 90-120 DEG C for 8-12 hours to obtain a white precipitate of magnesium hydroxide; filtering the solution; washing the white precipitate; drying the white precipitate at 120 DEG C for 6-12 hours; placing the dried magnesium hydroxide precipitate into a pressure-resistant container; vacuumizing the container; filling the pressure-resistant container with 2-bromo-3,3,3-trifluoropropene (BTP) liquid, wherein the mass of the 2-bromo-3,3,3-trifluoropropene accounts for 5.0-16% of the mass of the system; allowing the system to stand at 35-50 DEG C for 12-24 hours; cooling the system to room temperature; adding talcum powder to the container with the mass of the talcum powder accounting for 1.0-4.0% of the mass of the system; mixing the powder uniformly to obtain the gas-solid composite dry powder extinguishing agent. The extinguishing agent is low in corrosivity and good in anti-reburn performance. The raw materials of the extinguishing agent are cheap and easy to obtain and the preparation process is simple. The extinguishing agent is suitable for various fire hazards such as solid fires, combustible gas fires and liquid fires or the like.

The invention discloses an efficient low-viscosity easily-degradable anti-soluble compressed air foam extinguishing agent and a preparation method thereof. The extinguishing agent comprises the following components in percentage by weight: 5-25% of a hydrocarbon surfactant, 3-10% of a fluorocarbon surfactant without perfluorooctylsulfonate, 1.5-10% of a low-viscosity anti-soluble component, 3-15%of a foam stabilizer, 5-15% of an antifreeze agent, 0.2-2% of a preservative and the balance of water. The extinguishing agent has the characteristics of high efficiency, low viscosity, low mixing ratio and easiness in degradation; and the mixing ratio is flexibly selected for different fire extinguishing objects, so that various types of fires can be quickly extinguished. All the components of the extinguishing agent can be rapidly biodegraded in the environment and have no pollution to the environment. According to the preparation method, the problems that macromolecular polysaccharide substance powder is easy to agglomerate in the water, long in swelling time and difficult in uniform component mixing in a traditional adding method are effectively avoided, and the foaming condition of the extinguishing agent in the production process is effectively controlled, so that the production efficiency is remarkably improved.

The invention belongs to the field of fire extinguishing agents and particularly provides a metal zirconium fire extinguishing agent which comprises the following components in percentage by mass: 30%-32% of modified quartz sand; 32-35% of modified sodium chloride, 20%-23% of ammonium polyphosphate, 2%-3% of magnesium stearate, 3%-4% of hydrophobic silicon dioxide, 1%-2% of vermiculite powder and1% of mica powder. In the fire extinguishing process, chemical fire extinguishing and physical fire extinguishing can be combined, a reaction chain of metal zirconium combustion is cut off, and the good effects of cooling, after-combustion resistance and dust explosion inhibition are achieved. The invention further provides a preparation and use method of the zirconium metal fire extinguishing agent. The preparation method is simple, low in cost, easy to store and convenient to use.

The invention belongs to the technical field of fire extinguishing materials, and particularly relates to a foam fire extinguishing material containing closed-cell foam ceramic spheres, and a preparation method thereof. According to the present invention, the used closed-cell foam ceramic spheres have relatively large specific gravity and hydrophilic oleophobic property, such that the closed-cellfoam ceramic spheres and the fluoroprotein foam fire extinguishing agent form the layered structure when the closed-cell foam ceramic sphere and fluoroprotein foam fire extinguishing agent mixture asthe extinguishing material is sprayed to the sea surface, such that the closed-cell foam ceramic sphere layer can move along with the sea surface so as to buffer the foam protein on the upper layer, reduce the tearing damage of the up and down sea surface disturbance to the foam protein layer, ensure the continuity of the foam protein layer and improve the sealing effect of the foam protein layerto the oil surface; and the closed-cell foam ceramic spheres of the closed-cell foam ceramic sphere layer are sandwiched with the foam protein, wherein the foam protein can be well protected, and hascharacteristics of good stability and long fireproof time, such that the foam fire extinguishing material has advantages of excellent stability, excellent burn resistance and excellent re-ignition resistance.

A fire extinguisher assembly device, comprising a frame (1), on which a fire extinguishing device (2) is installed, and a switch (3) is installed on the fire extinguishing device, and when a fire occurs, the switch is activated to extinguish the fire; a guide is set on the frame The device (4) can determine the location of a large fire; the pressurization device (5) is provided to ensure the continuous high pressure of the fire extinguishing device; the induction device (6) is installed in the fire extinguishing device to send a warning message when the fire extinguishing material is insufficient; It is displayed by sound or LED light; realizes fast and efficient fire extinguishing, good anti-reburning effect, strong operational practicability, high work efficiency, fast fire extinguishing speed, high safety and long duration.

According to a fire extinguishing device with a time delay function, on one hand, a main blasting fuse is a low-speed blasting fuse, the surface of the main blasting fuse is wrapped with protective blasting paper, the protective blasting paper can be moisture-proof tin foil gummed paper, and the protective blasting paper can conduct twisting and blasting protection on the main blasting fuse, so that the main blasting fuse is prevented from fast burning and fire crossing and is moisture-proof; and therefore the fire extinguishing device has a delayed explosion function; and on the other hand, a standby lead is further included, one end of the standby lead is located on the outer side of a center cylinder and extends in the mode of being attached to the top wall of the center cylinder, the other end of the standby lead penetrates through the top wall of the center cylinder and then is connected with a pyrotechnic composition, the position of the standby lead and the position of the main blasting fuse are staggered, two lines for igniting the pyrotechnic composition of the standby lead and the main blasting fuse are formed, the two lines are not liable to interfere with each other, when one line fails and cannot be ignited, the other line can also achieve the ignition function, and the problem that the lines cannot be ignited when put into a fire source is solved.

The invention relates to a composite aerosol fire extinguishing material with a bioremediation function. The composite aerosol fire extinguishing material comprises the following components by weight: 55-70% of an oxidant, 5-10% of a combustible agent, 5-15% of a catalytic modification agent, 5-10% of extinguishing flame retardant granules, 2-5% of a bioremediation agent, and 2-8% of a forming additive. The preparation method of the composition includes: fully grinding and mixing the solid components according to the weight percentage, then conducting thermomechanical treatment, and carrying out pressure forming in a pressure die to prepare a grain for filling of fire extinguishing equipment. The fire extinguishing material prepared by the method provided by the invention has efficient fire extinguishing efficiency, no destructive effect on the atmospheric ozone layer, and no harm to organisms and environmental safety, can automatically carry out rapid bioremediation on post-disaster environment toxic pollutants, has good stability and reliability, and can be stored for a long time.

The invention discloses a composite dry powder extinguishing agent and a preparation method thereof. The composite dry powder extinguishing agent is prepared from the following main raw materials in parts by weight: 30 to 38 parts of alkali residues, 15 to 22 parts of sodium bicarbonate, 12 to 18 parts of potassium sulfate, 10 to 15 parts of magnesium carbonate powder, 2 to 5 parts of polybutylene, 3 to 7 parts of ammonium sulfate, 8 to 14 parts of gypsum, 4 to 9 parts of chlorinated rubber, 3 to 6 parts of zinc borate, 1.5 to 3.5 parts of tin oxide and 0.8 to 1.8 parts of silicon nitride. The composite dry powder extinguishing agent disclosed by the invention has good fire extinguishing performance for three-dimensional burning type fire and has the advantages of high fire extinguishing efficiency, high moisture resistance, good after-combustion resistance and environment friendliness.