RU154949U1 - INJECTOR UNIT FOR CLEANING THERMOPLASTIC RUBBERS - Google Patents

Abstract

1. The nozzle apparatus for washing thermoplastic rubbers, containing a cylindrical body including a bottom, a cover and a spray of liquid, characterized in that the spray of liquid is connected to a flow agent for washing water and made in the form of a central pipe mounted on the cover with a collector of radial pipes, on which nozzles are mounted, located in a spiral Fermat and facing the flat bottom of the housing installed in the tank, connected to the rotation drive. 2. The apparatus according to claim 1, characterized in that a water heater is installed in the washing water supply line. 3. The apparatus according to claim 1, characterized in that the tank is equipped with a horizontal partition, on the upper surface of which are mounted supporting and drive rollers on which the housing is mounted, and the partition is equipped with overflow nozzles. 4. The apparatus according to claim 1, characterized in that the housing is eccentrically mounted in the tank. 5. The apparatus according to claim 1, characterized in that the lid is provided with a lifting device.

Description

The utility model relates to the field of processing of polymeric materials, in particular to equipment for washing polymers from water-soluble impurities, namely thermoplastic acrylate rubbers and other thermoplastic materials.

Widely known equipment for washing polymers are rollers for continuous washing of elastomers, containing two rolls, a selection device mounted on the traverse and a means for returning the material to the roll gap, made in the form of flexible tapes fixed to the selection device, covering the rolls in the material selection zone and connected to traverse by means of springs. Through the drive system, the rolls rotate towards each other, with continuous rolling, the material is loaded into the gap near one of the limiting arrows and during processing moves along the forming rolls. The selection device is installed at the opposite limiting boom, the material through the channel of the selection device is removed from the rolling zone, some of the material remains in the grooves of the corrugations of the rolls and returns to the rolling zone using covering flexible tapes (Auth. Certificate USSR 1256973, V29v 15/06, prior , from 11.01.85)

The main disadvantage of this apparatus is the high water consumption, as well as the lack of devices for foaming and control the degree of polymer washing by the conductivity of the wash water.

A known line for washing shredded polymer waste, which contains a washing machine connected in series, made in the form of a rectangular-shaped tank with a semi-cylindrical bottom, inside which passes a shaft with corrugated activators, a separation machine and a rinse-off machine made in the form of rectangular-shaped tanks with conveying screws , sedimentation tanks blocked by filters. A pipe with a nozzle is installed on the cover of the washer to move the washed raw materials into the separation machine. The washing machine is divided by removable corrugated partitions into washing chambers. The washing chambers are interconnected by transfer slots made in the partitions. At least one activator is installed inside each chamber. The last chamber is equipped with a pump for pumping the washed polymer into the separation machine. The corrugation of the partitions and activators is made in such a way that it contributes to an increase in the turbulence of the flow created by the activators. (RF patent No. 2227093, IPC B29B 17/00, 2004).

This invention does not allow for the washing of lump coagulation polymers, since it provides for washing only the crushed polymer waste. The use of this device for washing thermoplastic rubbers will complicate the process by introducing an additional stage of grinding the resulting polymer and increasing energy consumption. In addition, the device is characterized by the complexity and cumbersome design.

A device is known that provides for the coagulation process in the presence of serum water and coagulating additives, washing rubber crumbs from the remnants of coagulating additives, squeezing and drying the rubber, collecting serum, washing and squeezing water, concentrating the rubber crumb in the collected water in a phase separator by filtering the concentrated streams through a porous septum with a degree of turbulence of flows in the gap between the filtering septum and the filter housing 30000-180000 units. Reynolds, while the concentrate of washing squeezed water is fed to the rubber washing stage, and the serum water concentrate is fed to the coagulation stage instead of serum water. [Patent N 2048476, RF, MKI C08C 1/00, publ. bull. N 32, 1995].

The main disadvantages of this hardware design are low efficiency when washing rubbers with an affinity for lump coagulation, significant consumption of softened water when washing rubber, incomplete extraction of polymer from serum, washing and squeezing water, as well as the phase separator used in this method, which is clogged with tiny particles crumbs of rubber falling into the pores. Clogging of the filter element occurs non-uniformly, i.e. it is smaller at the inlet and larger at the outlet, which sharply reduces the filter mileage between cleanings (250-300 hours), which is primarily due to a significant decrease in the flow turbulence to the concentrate exit from the filter due to a reduction in its volume.

Known reactor nozzle film type containing a cylindrical body, including a conical cover and bottom, nozzles for inputting reagents and outputting reaction products, a three-position atomizer of the original liquid reagents and film-forming elements (Pat. RF No. 2236899, IPC B01J 19/26, B01D 3/28, 2004).

The disadvantages of this invention include the inability to ensure uniformity of inkjet processing of the entire surface and similar liquid reagents, which will lead to the presence of local areas of rubber saturated with GRP and the release of a product of unstable quality.

Closest to the technical nature of the proposed invention is a nozzle apparatus of the film type, containing a cylindrical body, including a bottom, a cover and a spray of liquid. In addition, the device contains nozzles for introducing reagents and outputting reaction products, film-forming elements. A diaphragm is placed in the casing of the apparatus, dividing it into two sections, and a pipe is placed coaxially to the casing in the diaphragm opening, on top of which an expander with vertical perforated tubes is installed, and a package of vertical blades mounted on the base plate at an angle to the radial direction equal to 45 -50 °, in the lower section of the housing a rectangular nozzle for introducing reagents with a three-position atomizer placed in it is installed tangentially, moreover, with the upper edge of the tangential nozzle 1.5-2.0-x spiral screw tray attached to the specified pipe installed with a gap relative to the wall of the casing equal to 2-4 mm; in the radial direction, the tray is inclined at an angle equal to 6-10 °, and at an equal distance spiral film-forming elements are installed vertically from each other on the screw tray, having a gap with the lower turn of the tray (Pat. RF No. 2344876, IPC B01J 19/26, 2009).

The disadvantage of this device is the low efficiency when used for washing thermoplastic elastomers due to the limited interaction zone of the sprayed material with the processed, which does not allow to provide the necessary level of mass transfer.

The specified disadvantage is due to structural features of the known device.

The objective of the utility model is to create equipment for washing thermoplastic rubbers from water-soluble impurities.

The technical result provided by the utility model consists in organizing a controlled and controlled process of washing the thermoplastic material by simultaneous exposure to shear deformations, heat supply and removal of impurities by the wash water stream.

These results are achieved by the fact that in the nozzle apparatus for washing thermoplastic rubbers from water-soluble impurities, containing a cylindrical body, including a bottom, a cover and a liquid spray, the liquid spray is connected to a flow pump for the wash water and is made in the form of a pipe mounted on the cover with a collector in the form radial nozzles on which nozzles are mounted, located in a spiral Ferma and facing the flat bottom of the housing, which is installed in the tank and connected to the drive ohm rotation.

A water heater may be installed in the wash water supply line.

The tank can be equipped with a horizontal partition on the upper surface of which support and drive rollers are installed, on which the housing is installed and the partition is equipped with overflow nozzles.

The housing can be mounted eccentrically in the tank.

The cover may be provided with a lifting device.

Between the distinguishing features and the achieved technical result, there is the following causal relationship.

The connection of the liquid atomizer with a rinse water flow driver and its execution in the form of a pipe mounted on the cover with a collector in the form of radial nozzles on which nozzles are mounted, located on a spiral Farm and facing the flat bottom of the body, which is installed in the tank and connected to the rotation drive, provides :

- uniform processing of the entire surface of the laundered material by creating shear deformations on its surface;

- heat input to intensify the washing process;

- removal of washed impurities from the surface of the washed material.

Installation of a water heater in the wash water supply line

provides the washing process at the maximum temperature acceptable for the material, which further contributes to increased productivity.

The supply of the tank with a horizontal partition, on the upper surface of which support and drive rollers are installed, on which the body is mounted and the supply of the partition with overflow nozzles ensures the washing process at a fixed level of washing water, which ensures the constant pressure of the jets on its surface and maintaining a constant temperature during washing.

Mounting the housing in the tank for eccentric convenience

installation and removal of the housing from the tank when loading and unloading rubber.

Providing a cover with a lifting device provides ease of maintenance.

According to the information available to the applicant, the set of essential features of the claimed utility model is not known from the prior art, which allows us to conclude that the claimed object meets the criterion of “novelty”.

The set of essential features characterizing the essence of the utility model can be repeatedly used in the production of various modifications of devices for washing thermoplastic rubbers from water-soluble impurities to obtain a technical result consisting in increasing the efficiency of their use, which allows us to conclude that the claimed object meets the criterion of “industrial applicability” .

The essence of the claimed utility model is illustrated by an example of a specific implementation, where the drawings show:

in FIG. 1 is a general view of the nozzle apparatus for washing thermoplastic rubbers;

in FIG. 2 - shows the upper part of the apparatus, side view;

in FIG. 3 - shows the same as in FIG. 2, top view;

in FIG. 4 shows the location of the nozzles on the spray manifold;

in FIG. 5 shows a blasting scheme for thermoplastic rubbers.

The list of items indicated in the drawings:

1. housing;

2. bottom;

3. cap;

4. liquid atomizer;

5. a trigger for the flow of wash water;

6. central pipe;

7. radial pipe;

8. nozzle;

9. tank;

10. horizontal partition;

11. water heater;

12. support roller

13. conical section;

14. overflow pipe;

15. hinge;

16. lifting device

17. pipe;

The nozzle apparatus for washing thermoplastic rubbers from water-soluble impurities comprises a cylindrical body 1 with a flat bottom 2, a cover 3, in which a liquid atomizer 4 is mounted, connected to a flow agent for washing water 5. The liquid atomizer 4 is made in the form of a collector containing a central pipe 6 and radial nozzles 7, located in the same plane, on which nozzles 8 are mounted, located in a Ferm spiral and facing the flat bottom 2 of housing 1. Ferm spiral (sometimes a parabolic spiral l) - the spiral defined on the plane in polar coordinates by the equation r ² = a ² · φ is a view of the Archimedean spiral. The housing 1 is eccentrically mounted in a tank 9, in which a horizontal partition 10 is installed in the upper part and a water heater 11 in the lower part. Support rollers 12 are installed on the partition 10, one of which is connected to a rotation drive (not shown). The rollers 12 are deployed in a radial plane and interact with the conical section 13 of the bottom 2. The horizontal partition 10 is equipped with overflow pipes 14. The cover 3 is connected by a hinge 15 to the upper part of the tank 9 and is connected to a lifting device 16.

The proposed device operates as follows.

The lifting device 16, the cover 3 is translated into a vertical position, this is ensured by its fastening on the tank 9 by the hinge 15. On the support rollers 12 with a tapered section 13, the housing 1 with the laundered material laid on the bottom 2 is installed. After that, the cover 3 closes. The cavity of the tank 9 through the upper pipe 17 is filled with wash water, and the water heater 11 its temperature rises to a predetermined value (60-90 ° C). Heated water as a stimulator of the flow of washing water 5 from the tank 9 through the central pipe 6, the radial nozzles 7 through the nozzles 8 under pressure from 0.2 to 0.6 MPa are fed to the rubber being washed from impurities. At the same time, the rotation drive of one of the rollers 12 is turned on, which, interacting with the conical section 13 of the bottom 2, rotates the housing 1. The heated water emerging from the nozzles 8 heats the thermoplastic rubber and spiral grooves are formed on its upper surface from the effects of jets from nozzles 8 (see Fig. 5). This contributes to the intensive washing of rubbers from water-soluble impurities. Wash water, filling the housing 1 is poured into the upper part of the tank 9 bounded below by a horizontal partition 10, from where it is drained through the overflow nozzles 14 into the lower part of the tank 9. The washing process continues until the specified concentration of water-soluble impurities in the rubber is reached, after which the washing is drained from the tank 9 through the lower pipe 17, and the rubber is removed from the housing 1 and sent for further processing.

The nozzle apparatus for washing thermoplastic rubbers is simple in design and provides reliable washing of thermoplastic rubbers and other elastomers.

Claims (5)

1. The nozzle apparatus for washing thermoplastic rubbers, comprising a cylindrical body including a bottom, a cover and a liquid atomizer, characterized in that the liquid atomizer is connected to a flow agent for washing water and made in the form of a central pipe mounted on the cover with a collector of radial nozzles, on which nozzles are mounted, located in a spiral Fermat and facing the flat bottom of the housing installed in the tank, connected to the rotation drive. 2. The apparatus according to claim 1, characterized in that a water heater is installed in the washing water supply line. 3. The apparatus according to p. 1, characterized in that the tank is equipped with a horizontal partition, on the upper surface of which are mounted supporting and drive rollers on which the housing is mounted, and the partition is equipped with overflow nozzles. 4. The apparatus according to claim 1, characterized in that the housing is eccentrically mounted in the tank. 5. The apparatus according to claim 1, characterized in that the cover is provided with a lifting device.

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