Pneumatic transport device for powder materials

FIELD: transport.

SUBSTANCE: invention relates to pneumatic transport and can be used for transfer of loose materials, fluids and suspicion in construction, agriculture, etc. Proposed consists of hopper, transport pipeline and gas (air) pulsed feed tube. Said hopper communicates with said tube via proportioner. Besides device incorporates steam feed pipeline communicated via two branches and valves with two cylinders. Cylinder piston rods are coupled with those of pneumatic cylinders. Waste steam and air (gas) exhaust valves are fitted in the cylinders. Pneumatic cylinders are intercommunicated by pipeline with valve, while aforesaid gas feed pipeline branches are intercommunicated via valve that control air pulse intermittent feed into the tube.

EFFECT: simplified design, possibility to used steam (waste steam included) to transport powder-like loose materials.

1 dwg

 

The invention relates to the field of pneumatic and can be used in various industries, construction and agriculture to transportation of bulk materials, flowable liquids, emulsions and suspensions.

A device for the pneumatic conveying of powdered medium containing hopper, transport pipes, pipe for pulsed gas supply (RF application No. 2003108263, B65G 1/00 dated 26.03.2003, publ. 10.02.2005).

The disadvantage of this device is complex in structure, as well as the inability to use steam (including waste) to facilitate pneumotransport powdery bulk materials, flowable liquids, emulsions and suspensions in the pulse-powder mode with speeds close to the speed of sound.

The closest in technical essence is a device for the pneumatic powder-like environment consisting of a hopper, a pipe for pulsed gas supply and piping gas supply in the above-mentioned pipe, and a hopper connected with a pipe for pulsed gas flow through the metering device (U.S. patent No. 4775267 from 04.10.1988 - prototype).

The disadvantage of this device is complex in structure, as well as the inability to use steam (including waste) to ensure pneumotransport powdery bulk materials, flowing the liquids, emulsions and suspensions in the impulse piston mode with a speed close to the speed of sound.

The objective of the invention is to simplify the design and creation of a design that allows you to use steam (including exhaust) to facilitate pneumotransport powdery bulk materials, flowable liquids, emulsions and suspensions.

The problem is solved by a device for pneumotransport powdered environment, consisting of a hopper, a pipe for pulsed gas supply and piping gas supply in the above-mentioned pipe, and a hopper connected with a pipe for pulsed gas flow through the dispenser according to the invention, it provides a pipeline for supplying a pair of connected branches through the valves with two cylinders, the pistons of which are connected by rods with the rods of the pneumatic cylinders, while in the last mentioned cylinders installed the exhaust valves to release waste steam and gas, the pneumatic cylinders are connected by pipeline with the valve, the supply line gas in said pipe has a branch, United between you and the pipe through the valve alternately opening and closing the passage of a pulse of gas into the tube.

The analysis suggested solutions to the prototype allowed us to identify features that distinguish the proposed solution to the prototype that meets the criterion of "novelties is".

Comparative analysis of the proposed solutions with known revealed no signs consistent with the distinctive features of the proposed solution that meets the criterion of "inventive step".

The invention is illustrated in the drawing, which placed a schematic drawing of the device.

Device for pneumatic conveying of powdered environment consists of a hopper 1, pipeline gas supply 2 and the pipe 3 for pulsed gas supply. The device further comprises a pipe 4 for supplying steam. The pipe 4 is connected by branches 5 and 6 through the valve 7 with two cylinders 8, the piston 9 which the rod 10 is connected with a rod (not shown) of the pneumatic cylinder 11. In the cylinders 8, 11 installed exhaust valves 12 to exit the exhaust steam and air (gas). The cylinders 11 are connected by pipe 13. In the pipe 13 has a valve 14, and the branches 5, 6 of the pipe 2 are connected and the pipe 3, through the valve 15, alternately opening and closing the passage of a pulse of air into the pipe 3. The hopper 1 is connected to pipe 3 for pulsed gas flow through the spout 16. If necessary, the device is supplemented by the air dryer (gas) and the receiver.

The device operates as follows.

Steam from a source of steam, such as exhaust steam CHP, enters the pipe 4 for supplying steam. The branch 5 (bottom) h is cut open valve 7 into the cylinder 8. The upper branch 6 is blocked from entering the pair closed valve 7. The steam in the cylinder 8 of the lower branch 5 presses the piston 9 by moving it to the right (by admission of steam). When the rod 10 of the piston 9 connected with the rod of the pneumatic cylinder 11 moves the piston of the pneumatic cylinder (not shown) is also right. Exhaust steam from the cylinder 8 through the exhaust valve 12 is discharged into the atmosphere. Air (gas) from the air cylinder 11 piston (not shown) with high speed (close to the speed of sound) comes mostly in the pipeline gas supply 2 and the lower part of the pipe 13 (because of the different cross-sectional surfaces) through the open valve 14 in pneumatic cylinder 11 upper branches 6, moving the piston rod (not shown) to the left. The high rate of air (gas) pipeline gas supply system 2 is explained by the high speed rotation of the air pulse. As the piston rod of the pneumatic cylinder 11 is connected with the rod 10 of the piston 9, the piston 9 of the cylinder 8 moves to the left. Thus the air and vapor through the exhaust valves 12 are displaced from the cylinder 11 and 8 and are released into the atmosphere. The upper branch 6 cylinder 8 and the cylinder 11 is shown in its original position. Air (gas) with high speed (close to the speed of sound) from the pipeline gas flow 2 flows to the pipe 3 for pulsed gas flow, the valve 15 is blocking the flow in which Suha in the upper branch 6 to the cylinder 11. The momentum of the air entering into the pipe 3 for pulsed gas supply, high speed move, this time from the hopper 1 through the metering device 16, such as a gate, is supplied, for example, ash ash CHP. Pulse air ash is compressed, forming a tube, while along the edge of the tube and the pipe 3 is created fluidized layer, which lowers the coefficient of friction in the pipe 3, bringing it to zero. Tube fly ash with high speed is moved through the pipe 3. Opens the valve 7 lower branches 6 and closes the valve 7 lower branches 5, the education cycle pulse air and move the tube ash repeated.

Thus, the proposed device for pneumatic conveying of powdered environment simply by design and allows the use of pairs (including exhaust) to ensure pneumotransport materials, flowable liquids, emulsions and suspensions, it achieves high-speed pulse-piston moving materials.

Device for pneumatic powder-like environment consisting of a hopper, a pipe for pulsed gas supply and piping gas supply in the above-mentioned pipe, and a hopper connected with a pipe for pulsed gas flow through the metering device, characterized in that it comprises a pipe for feeding a pair of connected branches through the valves of two cylinders, pistons to the x rods are connected with a pneumatic drive, in the last mentioned cylinders installed the exhaust valves to release waste steam and gas, the pneumatic cylinders are connected by pipeline with the valve, the supply line of the gas in the pipe has branches connected to this pipe through the valve alternately opening and closing the passage of a pulse of gas into the pipe.



 

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FIELD: transport.

SUBSTANCE: invention refers to the area of pneumatic transport of powdered hard material. Plant is designed for the continuous feed of powder hard material from the service tank (10) into the pneumatic transport pipeline (12, 12'). This plant contains the first (14) and the second (16) intermediate tanks installed near each other. The first intermediate tank (14) is built in the form of sluice tank with the upper sluice valve (18) and the lower sluice valve (20). The second intermediate tank (16) is built in the form of injection tank. Between the lower sluice valve (20) of the first intermediate tank (14) and the upper inlet (30) of the second intermediate tank (16) the system (50) of intermediate pneumatic transport is located to transmit the powdered hard material from the first intermediate tank (14) into the second intermediate tank (16). System (50) is provided with the device for material fluidisation.

EFFECT: provides simplification of construction.

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FIELD: machine building.

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EFFECT: reliability enhancement.

1 dwg

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