SU919718A2 - Automatic fixing and metering apparatus for powdered dye stuff - Google Patents

Description

(5) AUTOMATIC MIXING AND DOSING DEVICE FOR POWDERED DYES

 , , . . The invention relates to a mixer; but-dosing devices and can be used at the chemical plants of the dyeing and finishing industry of light industry.

According to the main author. St. No. 735289, an automatic mixing and dosing device for powdered dyes is known, which is mainly used for the preparation of liquid dyes in dyeing and finishing dyeing plants. It contains a pipe with spray nozzles placed in it, a tank. with a mixer, a container with a powdered dye, an airgaslift and an air separator connected to a pipe. a container weight sensor, automatic scales, a pressure regulator, a pneumatic sensor, a pressure gauge, a pneumatic amplifier, a pneumotumulator with a three-way electropneumatic, a-pan, the output of which is connected through a pneumatic sensor with pressure gauges and a pneumatic-tiller, the output of a pneumatic-tamper is connected through a gas pressure regulator to the inlet of an ergaslift and through an amplifier with a shut-off pneumatic valve Cl 1.

In a shipping container there is often compacted compacted powder, Zrgaslift raises it with difficulty, the container must be shaken by tapping or gkemixing the powder by hand. All this reduces the accuracy, speed and technological capabilities of the device.

15

The aim of the invention is to expand the technological capabilities of the device by facilitating and accelerating the unloading of powder from the container by creating a fluidized bed in the zone

20 bottom. Ergazlift parts.

Claims (1)

The goal is achieved by the fact that the automatic mixing and dosing device for powder dyes is equipped with an annular tubular bubbler connected through an air-supporting tube and is adjustable (throttle with outlet of the pneumotumbler, and the bubbler is located under the lower end of the ergazlift concentric but to it. Such a constructive solution binds automatic activation of the bubbler simultaneously with the ergazlift and the creation of a pseudo-boiling layer in the zone of the lower part of the ergazlift, the size of which is adjusted by depending on the quality, the powder and the degree of its installation. The drawing shows a schematic diagram of the proposed device and section A-A. The automatic mixing and dosing device for powder-like dyes contains pipe 1, ergazlift 2, air separator 3. sprayed body nozzles k, shut-off pneumatic valve 5 pneumatic amplifier 6, pressure gauge 7, pressure regulator 8, pneumatic hoist 9 n "evzazadchik 10, three-way electropneumatic valve 11, sensor 12 tare weight, automatic scales TZ. tapy T4 with powdered dye and tank with stirrer 15, bubbler 1b, adjustable throttle 17 air supply tube 18, fastening 19 The device works as follows. Compressed air through the open three-way elactropneumatics valve 11 enters the pneumatic gage inlet lOf where the pressure gauge 7 is installed and there is a consistent pressure value depending on the parameters of the pressure regulator 8, the setting of which depends on the height of the container and the specific density of the powder. The installation is activated by a pneumo-tumbler 9 through which the set pressure is supplied to the pneumatic booster 6 and to the shut-off pneumatic valve 5, which opens and supplies liquid to the spray nozzles k. At the same time, the set pressure through the pneumo-tumbler 9 enters the pressure regulator 8, where it decreases depending on the setting and enters the inlet of ergazlift 2 immersed in that f with powdered dye installed on the automatic scale 13. Air entering the ergazlift 2, picks up the particles of powdered dye and brings them into the pipe, where they are sprayed with liquid splashes and, mixing with them into the pulp-like mass, are deposited in a tank with a stirrer 15, in which, uniformly mixed, dissolve. Air exit it into the atmosphere through the air separator 3 When the pneumotumulator 9 is turned on, simultaneously with the activation of the known device, a bubbler is turned on, compressed air is supplied to the annular bubbler 16 from the pneumotumulator 9 through an adjustable choke 17 and the air inlet tube 18 and out through the holes, bubbling through powder, which creates layer in the vicinity of the entrance to ergazlift 2, which greatly facilitates the absorption of the powder into the ergazlift. The air supply is controlled by an adjustable choke 17. After unloading, it is set The device turns off the weight of the powder by a signal from the sensor 12 of the automatic balance 13, which is supplied to a three-way electropneumatic valve 11, which, when closed, stops the supply of compressed air and simultaneously releases it from the system. The use of an additional bubbler greatly facilitates and accelerates the unloading of powder from the container and the preparation of dyes. The invention of the Automatic mixing and dosing device for powdered dyes according to ed. No. 735289, characterized in that, in order to expand the technological capabilities of the device by facilitating and accelerating the unloading,. The container is created by creating a pseudo-boiling layer in the lower part of the ergazlift, it is equipped with a ring-shaped tubular bubbler connected through an air inlet tube and an adjustable throttle with the outlet of the pneumotumulator, and the bubbler is located under the lower end of the ergazlift concentric to it. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 73528E, class. B 01 F 3/12, 1977.