SU1137313A1 - Device for batching powder materials - Google Patents

Abstract

DEVICE FOR DOSING OF POWDERED MATERIALS, containing a hopper with a agitator and a dosing chamber placed under it, equipped with an outlet nozzle, an electromagnet connected to the valve, and a level sensor, characterized in that, in order to improve the uniformity of supply of hygroscopic powder material to the conveyor belt, the unit is equipped with a blender, and a level sensor, characterized in with a lid on which the catching cartridge is fixed, a gate valve with a micrometer screw is installed on the outlet nozzle, the agitator is made in the form of a tangential but installed at different levels inside the bunker, the nozzles connected through an annular piping to the pneumatic pressure source, and the bunker is equipped with a heater, a closed thermal insulation layer, with the valve placed between the bunker and the dosing chamber on which the level sensor is installed.

Description

The invention relates to dosing equipment and can be used for volumetric dosing of absorbent bulk materials in various industries. $

Known volumetric dispenser containing a frame, a tape feeder with a drive, a hopper with a gate, a roller and a device for returning excess material pj. 10

It is also known a device for volumetric dosing of bulk materials, containing a hopper with a tedder, a metering chamber located under the hopper, equipped with an outlet 15 pipe, an electromagnet connected to the valve, and a level sensor.

A disadvantage of the known devices is the low uniformity of the supply of hygroscopic powder 20 material.

The purpose of the invention is to increase the uniformity of the supply of absorbent powder material to the conveyor belt. 25

This goal is achieved by the fact that in the device for dispensing powdered materials, containing a hopper with a tedder, a metering chamber placed underneath it, equipped with an outlet pipe, an electromagnet connected to the valve, and a level sensor, the hopper is equipped with a cover on which the catch cartridge is fixed, at the outlet a slide gate valve with a micrometer screw is installed in the nozzle. Moreover, the agitator is made in the form of nozzles tangentially installed at different levels inside the hopper connected through an annular uboprovod to a pneumatic pressure source, and a hopper provided with a heater, insulation layer of closed, the valve disposed between the hopper and the metering chamber, on which is mounted the level sensor.

The drawing shows a device for dispensing powdered materials. A device for dispensing a powder material contains a hopper 1 with a agitator 2, a metering chamber 3 located under the hopper 1, equipped with an outlet pipe 4, an electromagnet 5 connected to the valve 6, and a level sensor 7. The hopper 1 is equipped with a cover 8, on which a catch cartridge 9 is installed. On the output pipe 4, a slide gate 10 with a micrometer screw 11 is installed. The agitator 2 is made in the form of nozzles 12 tangentially installed at different levels inside the hopper, connected through an annular pipe 13 to a source of pneumatic pressure (not shown). The hopper is equipped with a heater 14, a closed thermal insulation layer 15. A valve 6 is installed between the hopper 1 and the metering chamber 3, on which the level sensor 7 is mounted.

The device operates as follows.

The hygroscopic powder material loaded into the hopper 1 is heated by the heater 14 and simultaneously mixed by the agitator 2, which significantly increases the fluidity of the dosed material. Then, a level sensor 7 and an electromagnet 5 with a valve 6 are turned on, which in the metering chamber 3 maintain a constant level of material. The gate valve 10 with a micrometer screw 11 is installed in a predetermined position and the material extends from the device with a given flow rate. The air exhausted in the agitator 2 is cleaned of the dosed material by the catching cartridge 9 and discharged into the atmosphere.

The proposed device provides a uniform supply of absorbent powder material due to its heating in the hopper, dosing at a constant height of the layer of material and the use of slide gates.

Claims (1)

DEVICE FOR DOSING POWDERED MATERIALS, containing a hopper with a tedder and a metering chamber located below it, equipped with an outlet pipe, an electromagnet connected to the valve, and a level sensor, characterized in that, in order to increase the uniformity of the supply of absorbent powder material to the conveyor belt, the hopper equipped with a cover on which a catch cartridge is fixed, a slide gate with a micrometer screw is installed on the outlet pipe, and the agitator is made in the form of a tangentially mouth copulating at different levels within the nozzle of the hopper, through the annular conduit connected to a pneumatic pressure source, and a hopper provided with a heater, insulation layer of closed, the valve disposed between the hopper and the metering chamber, on which is mounted the level sensor.