SU1615090A1 - Method of transporting dispersed materials - Google Patents

Abstract

The invention relates to the transport of bulk materials, in particular to a method for transporting particulate materials. The purpose of the invention is to increase reliability. The method of transportation is that the material is fed to an inclined microporous septum and is exposed to it with a stream of compressed air supplied under the septum and taken over it. Additionally, compressed air is taken away under the partition, ensuring the speed of this part of the air flow is larger than the speed of the part of the air flow over the partition. Refined portions of the stream are recycled. 1 il.

Description

The invention relates to the field of transportation of bulk materials, in particular to a method for transporting particulate materials.

The purpose of the invention is to increase reliability and environmental cleanliness.

The drawing shows the installation, the implementation, and the proposed method.

The installation includes an inclined airgel 1 with air-2 and transporting 3 channels and an inclined microporous partition 4 between them. At the inlet end of the conveying channel 3 there is a nozzle 5 for supplying material 6. The nozzle 5 is connected to the hopper 7. At the output end of the conveying channel 3 there are nozzles 8 and 9 for draining the material 6 and exhaust air. At the inlet end of the air supply duct 2 there is a nozzle 10 for supplying air. The downstream air end of the air supply channel 2 is provided with an outlet 11 and connected to its outlet 10 for supplying air

pipeline 12 through the adjusting device 13, the separator 14 p1li and the fan 15, thereby forming a high-speed circuit. The exhaust air pipe 9 is connected to a high-speed contour by a pipe 16 between the adjusting device 13 and the dust separator 14 through an independent adjusting device 17, thereby forming a working circuit. The dust separator 14 has a nozzle 18 for removal of dust.

The installation works as follows.

The dispersed material 6 is fed from the bunker 7 through the nozzle 5 into the conveying channel 3 of the inclined air tanner I to the microporous septum 4. The entire amount of air in the installation through the nozzle 10 is fed under the microporous septum 4. In the high-speed loop through the pipeline 12 through the nozzle 10, air supply the channel 2, the pipe II, the dust separator 14 by the fan 15 is made to circulate the aerating air at high speed. Due to overpressure part of the air

05

SP

ABOUT

;about

from the air supply channel 2 enters through the microporous partition 4 into the transporting channel 3, to the aeration material layer 6. The aerated material 6 is transported in the working circuit. At the same time, it moves under the force of gravity along the inclined plane of the microporous partition 4 of the conveying channel 3. At the output end of the conveying channel 3, the aerated mixture separates and material 6 is discharged through the nozzle 8 and the spent dusty air goes through the nozzle 9. Then the spent the dusty air through conduit 16 returns to the high speed loop. The combined air flow, the concentration of particles in which has grown due to partial filtering on the microporous septum 4. as well as removal of the air chute 1 from the transport channel 3, passes through the pipe 16 through the dust separator 14, from which the settled dust is discharged through the pipe 18, and the lightly dusty air is vented by the fan 15 is again supplied to the 1-air supply channel 2 through the pipe 10. Using adjusting devices 13 and 17, the ratios of air flow rates and speeds in the high-speed and working circuits are set as follows. that the speed of air movement in the nostril-delivery channel 2 of the aeroguns 1 is sufficient to remove (due to the tangential friction stresses) dust deposited on the microporous partition 4 when lightly dusty air passes through it from the air supply channel 2 into the layer of material 6 in the transporting channel 3, and the gas flow through the microporous septum 4 and the layer of material 6 is sufficient to ensure normal aero-gravitational transport, but does not cause excessive removal of material 6 to the dust separator 4, The particle concentration in the air is set at the level determined by the capabilities of the dust separator 14 used,

The proposed installation allows to carry out the method of transportation of dispersed materials with an additional selection of compressed air from its stream under the microporous partition, ensuring the speed of this part of the stream in size

greater than the speed of a part of the air flow over the partition, and with recycling of the cleaned parts after the pooling.

Claims (1)

Invention Formula The method of transporting dispersed materials is as follows. that the dispersed material supplied to the inclined microporous septum is affected by a stream of compressed air supplied under the microporous septum from the material supply side and taken over the microporous septum on the opposite side, characterized in that, in order to improve reliability and environmental cleanliness, compressed air from its flow under the micro-partitioned screen, providing the speed of this part of the flow of airways j is larger in magnitude than the speed of the part of the air flow over the partition which, after combining the parts cleaned after