RU1768617C - Device for glue drying - Google Patents

Abstract

Usage: easy food and other industries, in particular when drying solutions and suspensions. The device comprises a working chamber connected to a vacuum source, pipelines for supplying a galley and discharging powder of an adhesive nozzle for spraying a galley. cyclone. Reflector screens with vibrators are located in the chamber on the pipeline for glue pea beneath the reflective screens; sockets are installed. Reflector screens and sockets are connected to the electric current source by the type of electrostatic precipitator. 2 silt

Description

The invention relates to the drying of suspensions, colloidal solutions of adhesives and can be used in the light, food industry and other industries

A known spray dryer consisting of a drying unit, a multicyclone and a scrubber, a colloidal solution drying circuit including a spray dryer, a filter, cyclones, a pump, fans, a vibration cooler and a dust collector, as well as a spray dryer, the circuit of which includes a fan with a heater, screw conveyor, cyclones and scrubber

Common disadvantages of the known devices are: large dimensions of heat loss with entrainment and, as a consequence of this, significant energy costs,

A known method of drying food solutions (3), mainly gelatin, comprising spraying the solution onto particles of an inert material, which is in suspension in a layer blown by air and brought into rotational motion and subsequent separation

dry product from particles of inert material, according to which the layer of particles of inert material is rotated by mechanical movement in two oppositely directed partially intersecting flows having rotation axes parallel to the direction of air movement, moreover, the solution is sprayed, the particle flows from the opposite sides the place of their intersection

However, in the known technical solution, drying is carried out by off-gases with a temperature of the order of 11 / ° C. In this case, condensate is released, which worsens the drying conditions. As the temperature of the gases rises, to avoid condensation, the gallery will overheat. which will lead to a sharp deterioration in the quality of glue

This method is not applicable when drying glue.

Of the analogues studied, the closest in technical essence (prototype) is a device for drying and trapping powder kpe containing razamgk

side chamber, galley feed line with nozzle, glue powder air line and multicyclone

The advantage of this device is the simplicity of horseipunkun and relative tightness

The disadvantages include large dimensions, significant energy costs (hot air of electric energy), heat loss with entrainment and, as a consequence, low drying intensity

The aim of the invention is to reduce the size, increase the drying intensity and reduce energy consumption by using the thermal energy of the gallery

The goal is achieved in that the device for suiki glue containing the working chamber of the galley feed pipe with nozzles, the pneumatic drive of the glue powder and the cyclone additionally contain reflective screens and the pneumatic duct of the powder glue is equipped with sockets, and the electric potential difference is applied to the reflective screens and sockets in the direction glue powder movements. Reflector screens are made in the form of blinds. The galley supply pipe is telescopic at the nozzle connection points, and the fencing screens are equipped with vibrators The working chamber is connected to the vacuum line The prototype of the claimed technical solution is distinguished by the fact that the working chamber. the device is connected to a vacuum Mai and the device contains reflector screens in the louvers equipped with vibrators the pneumatic line of the glue powder is supplied with rails 1 /, the electric potential difference in the direction of the glue powder motion and the galley supply pipeline are applied to the fire shields l and sockets connecting nozzles made telescopic

A positive effect is an increase in the drying intensity and a reduction in energy consumption. The latter is achieved by using the thermal energy of the galley

In Fig 1 and 2 shows the device

The device for drying and trapping the glue powder contains a working chamber 1 then a supply line 2 of the galley with nozzles 3 pneumatic dust pipe 4 and cyclone 5

The working chamber 1 is connected to a vacuum system 6 and is equipped with a vacuum dehumidifier 7, reflector screens 8 with vibrators 10, a dust and dust conduit 4 with sockets 9, and with an ego, the sockets 9 are strictly placed under the reflector screens 8 to freely remove moisture when boiling the galley into vacuum conditions, reflector screens 8 are made in the form of

jalousie. To control the depth of spraying the galley, the barrel of the nozzles 3 is made telescopic. The dust and dust pipe 4 serves to remove the finished product.

(glue), equipped with an ejector 18 and connected from the blower 12 with the air heater 11 (Fig 1) The bells 9 as well as the reflective screens 8 are equipped with vibrators

The inventive device operates as follows Galert with a temperature of 80- SO ° C through the pipe 2 using nozzle 3 entering the working chamber 1 located under a certain vacuum (chamber 1 is connected to the vacuum line 5 6) Thanks to the nozzle 3 providing a fine spray galley as well as a stable vacuum in the working chamber for 1 hour (the MI alert arouses boiling and intensively giving away glue and moisture on the fly

0 this moisture is continuously removed into the moisture outlet, which, like camera 1 is connected to a source of vacuum. Next, the particles of dry glue hit the screen-screens and 8 and are fixed in oestruby 9 and right

The motion of the particles of dry glue is due to their electrolysis in the electric field created by the difference in electric potentials between the reflector screens 8 and the rasters 9

0 With some on open, and in rchstuby

9 dry powder 1b is included in the operation of the ejector 6. which has a certain rarefaction in the neck pdo-ipy6a 9 coj / 4aci and with the help of which it will burn the powder

5 glue As a tr-expssta kpe here all e1s lOtJfl / iS i giving

M C P S / V P O & O D O T 3 3 D v L C -, b 1 12 I 1

air heater 1

In avoiding / .and Zs.ch1revyay o ochcha

.. --rieq on the walls of the rails 9 after / bottom as it was supplied to the vibrators / 13 From the pneumo-spille conduit 4 and the mixture flows into cyclone 5 in which the air / air is separated by / t and /

5 further glue as a jute product goes to load

For i / i v iz of the invention 1 Device for drying glue with holding; its working chamber supply line i

° 1ler | S and removal of glueon cjiopcy-iKn powder galeon cyclone different from 4io with the aim of increasing the intensity of i and drying / and lowering e: capacity by using singing

D energies Information about the supply of fuboprovodschlyuyu connecting h, 1 part (h / vacuum with a screen-from razhe el M1 with vibrators dt / ropoujKa pipe is equipped with sockets installed / in the r / tod eloon / from 1 otelr

mi, while reflector screens and sockets are connected to the source of the electric hock as an electrostatic precipitator

2. The device according to claim 1, characterized in that the reflector screens are made

type of blinds, the supply line of the galley at the points of connection with the nozzles is made telescopic and the mouths are equipped with vibrators

AND,

I

YU

Gallery

 21

Control flap

P

„G

P

FIG. 1

20 19 17 18

sixteen

De0osnes &

t

/ y & /// # //

fig 2