SU995806A1 - Device for fire-proof transporting of highly inflammable materials - Google Patents

Description

(54) DEVICE FOR FIRE-SAFE TRANSPORTATION FLAMMABLE

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The invention relates to fire fighting technology, and can be used for pneumatic transport of dispersed metal particles.

A device for fire-safe transportation of highly flammable materials, mainly dispersed metals in an air stream, contains a chamber with inlet and outlet channels with dampers and a fire suppressant associated with fire sensors and an actuator I.

However, this device is not sufficient for the efficiency of transporting products. This is due to the fact that quenching is carried out with a hot inert gas, KOTopbw has a low heat capacity.

The purpose of the invention is to increase the efficiency of transporting products.

This goal is achieved by the fact that a device for fire-safe transportation of flammable materials, mainly dispersed metals in an air stream, contains a chamber with inlet and outlet channels having dampers and with a means for pulling materials

The mountains associated with the fire sensors and the power drive have additional means of extinguishing flammable materials, and the chamber is equipped with partitions with windows for passage of materials that divide the chamber into bunkers, with means for weeping installed above each bunker.

At the same time, the flaps are made in the form of hermetic shut-offs. 0 The fire extinguishing agent is made in the form of powder fire extinguishers, driven.

The sensors of fire are made in the form of thermo-and photosensitive elements, moreover, the thermo-sensitive elements are made of nylon cable passed over the bottom of the bins and connected to the drive of fire extinguishers, tongs and power drives.

FIG. 1 shows a diagram of the device; in fig. 2 - powder hopper 20

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In the chamber 1, partitions 2 are installed, dividing the chamber into zones of emptying. Hoppers for powder fire extinguisher 3 and photosensitive sensors 4 are placed above each zone of thinning. Thermal sensor 5 is stretched over accumulators of transported material 6 and is held in block 7 in stretched position by load 8 placed above limit switch 9. Signals from sensors and limit switch Go to the input of the amplifier 10. Dampers 11 are installed at the input and output channels. The extinguishing powder bin has a cover 12 for loading and controlling the quality of the extinguishing powder. In the lower part it is closed by a valve 13 with a sealing gasket. The valve is held in the closed position with the help of an electric lock 14, the other end of which is fixed on the hinge 15.

The materials transported by the air flow are deposited in the chamber and accumulated in the receivers 6. Partitions ensure free passage in the chamber. cervical air and the deposition of materials, as they have in the upper part of 2/3 of the height of the chamber wall slit for the passage of air. The specific consumption of fire extinguishing powder increases with logarithmic dependence with increasing area of combustion, and the division of the chamber into extinguishing zones decreases the area of burning, and thereby significantly reduces the consumption of fire extinguishing powder. When a fire inside the chamber occurs, the photosensitive sensors 4 give a signal to the amplifier 10, from which the flaps 11 are actuated, the locks of the valves 14 and the electric motor of the fan. In this case, the flaps close the air path and the extinguishing powder is fed into the chamber. In the event of a fire in the accumulator under the layer of the transported substance, the start of the fire extinguishing is provided by a thermosensitive sensor 5,

for example nylon cord and limit switch 9.

The use of the proposed device improves the efficiency of extinguishing fires in the chambers and reduces losses from them.

Claims (4)

1. A device for fire-safe transportation of flammable materials, mainly dispersed metals in an air stream, comprising a chamber with inlet and outlet channels having dampers, and a fire extinguishing agent associated with fire sensors, and a power drive, characterized in that the purpose of increasing the efficiency of extinguishing transportation products, it has additional means for extinguishing flammable materials, and the chamber is equipped with partitions with windows for the passage of materials once ate yuschimi chamber in silos, wherein the means for extinguishing .bunkerom installed over each. 2. The device according to claim 1, characterized in that the flaps are made in the form of hermetically cutting gates. 3. Device under item 1, characterized in that the extinguishing agent is made in the form of nopoHJKOBbix fire extinguishers with a drive. 4. Device on PP. 1; -3, characterized in that the sensors of fire are made in the form of thermo-and photosensitive elements, moreover, the temperature-sensitive elements consist of a nylon cord that is passed over the bottoms of the bins and connected to the drive of fire extinguishers, gate valves and a power drive. Sources of information taken into account in the examination 1. USSR author's certificate 404484, cl. A 62 C 3/04, 1971. 2