SU1204519A1 - Chamber feeder of pneumatic transportation installation - Google Patents

Description

The invention relates to devices for feeding bulk materials into pneumatic conveying systems and can be used in the chemical, food, construction and other industries.

The purpose of the invention is to increase the stability of the issuance of material.

The drawing shows a functional diagram of a chamber feeder for feeding bulk materials into a pneumatic conveying system.

The camera feeder of the annevmotransport unit consists of a receiving chamber 1 with an aerating device, a bottom 2, a lid 3 and a loading opening with a shut-off valve 4 and fitting 5 for supplying compressed air. Inside the receiving chamber 1 along the axis there is a conveying pipeline 6 with a conical reflector 7 mounted coaxially on it. In the transport pipeline 6 under the reflector 7 there is a hole 8 for exhausting air. The reflector 7 is made with double side walls and an annular plate 9, forming a closed chamber, into which compressed air is supplied through pipe 10, which, through the perforated wall 11, exits the material near the reflector 7.

At the bottom of the receiving chamber 1 coaxially with the transport pipeline 6 mounted nozzle 12.

Chamber feeder works as follows

in a way.

The receiving chamber 1 through the check valve 4 is filled with bulk material. Then the shut-off valve 4 closes through the nozzle 5 into the cavity under the aeration head.

 2, compressed gas is supplied through conduit 10 into the cavity of the reflector 7 and through the nozzle 12 into the transport conduit 6. Part of the compressed gas entering the receiving chamber 1 through the aeration bottom 2 passes through a layer of material, fluidizes it and leaves through the opening 8 into the transport conduit 6. The remaining gas captures the fluidized material and carries it to the transport conduit 6, in which the material is picked up gas supplied through the central nozzle 12. The gas emerging from the cavity of the reflector 7 through the outer perforated wall 11 aerates the material located above the reflector 7, contributing to a reliable flow of material under the and complete unloading of the bonded material from the receiving chamber of the chamber feeder.

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Claims (1)

A CHAMBER FEEDER OF AN AIR-TRANSPORT INSTALLATION, comprising a vertically mounted hermetic receiving chamber with a loading window in the upper part, an aeration device located inside the chamber, a pipeline for supplying compressed gas and coaxially mounted transport pipeline and a conical reflector fixed to it with double side walls, a cavity between which communicated with the pipeline for supplying compressed gas, characterized in that, in order to increase the stability of the output of the material, the outer wall is conical a deflector and perforated by an annular plate connected to the inner edge of the bottom to form a closed cavity therein. SU., „1204519 In the bottom of the receiving chamber 1, a nozzle 12 is mounted coaxially with the transport pipeline 6. The chamber feeder operates as follows. The receiving chamber 1 through the shut-off valve 4 is filled with bulk material. Then the shutoff valve 4 is closed, through the nozzle 5 into the cavity under the aeration bottom ¹⁰ 2, through the pipe 10 into the cavity of the reflector 7 and through the nozzle 12 into the transport pipe 6 is supplied compressed gas. Part of the compressed gas entering the receiving chamber 1 through the aeration bottom 2 passes through a _{) 5} layer of material, fluidizes it and leaves through the hole 8 into the transport pipe 6. The remaining gas captures the fluidized material and carries it into the transport pipe 6, in which the material is picked up by gas supplied through the central nozzle 12. The gas exiting the cavity of the reflector 7 through the outer perforated wall 11 aerates the material located above the reflector 7, contributing to a reliable flow of material under the reflector tel 7 and complete unloading of cohesive material from the receiving chamber of the chamber feeder.