SU41179A1 - The method of separation of rubber and gutta-percha from aqueous suspension - Google Patents

Description

(91)

or other appropriate porosity materials; b) by supplying pressurized air through sections composed of pneumatic hoses consisting of a fabric of a proper degree of porosity.

4. By supplying pressurized air through the bottoms completely covered by a pneumatic cloth.

5. By heating water, etc. Method of water saturation with bubbles

air, by the release of air dissolved in water by heating, has those disadvantages in comparison with the four above, which requires the expenditure of heat, creates a discontinuous process and requires frequent changes of large quantities of water.

The introduction of air saturated with air into a rubber or gutta percha separator is possible as follows:

1. Through ordinary water hoses.

2. By installing inside the apparatus a section of iron tubes with holes for introducing water into the apparatus.

3.a) by injecting pressurized air into chutes, covered with pneumatic fabrics or other materials appropriate for porosity; b) through sections composed of special pneumatic hoses.

4. Through the entry of air under pressure through the bottom, completely blocked by a pneumatic cloth.

5. By heating water, etc.

In the first two cases (paragraphs 1 and 2), water already saturated with air bubbles is introduced into the excreta tank. In the third and fourth cases, the air crushing device itself is both an air crushing device and a bubble suction device. air to water. In the fifth case, the moment of formation of air bubbles at the same time is the moment of their introduction into the water. .

The isolation of rubber or gutta-percha from an aqueous suspension by the action of aeration can be carried out in a tank of any kind.

forms, supplying air saturated with water from a water line or from a reserve tank, or else aerating it by placing appropriate devices in the tank itself.

The following is a description of the most appropriate design of an apparatus for separating rubber or gutta-percha from an aqueous slurry.

In FIG. 1 depicts a rubber or gutta-percha extraction apparatus for processing rubber-based or gutta-percha raw materials (tausagyz, coxagyz, krymsagyz, guvayula, i-endyr, chondrill, etc.) from the aqueous suspension by aeration; FIG. 2 is a section along the line AB of FIG. one; FIG. 3-cross-section of a different shape of the zholobov; FIG. 4 is a longitudinal section of FIG. 3

The proposed device is a rectangular tank, the bottom of which consists of a series of pyramidal boxes 3 tilted upside down.

First, an apparatus for separating rubber and gutta-percha from an aqueous suspension (separator) has a constriction 1 when the material is introduced into the separator. At the end of the apparatus there is an inclined plane 2 with lateral sides guiding the material to the place of acceptance of the finished product.

The magnitude of the dihedral angles 13 between the two adjacent side walls of the pyramidal boxes is determined by the type of material being processed, as well as by the conditions of the technological process, at which sludges of various degrees of fineness settle in separate areas of the separator. The size of each of the pyramidal shchik depends on the magnitude of the dihedral angles, the main purpose of which is to continuously divert the settling sludge into the sumps.

If in some cases it is desirable to have more classified materials in the settling basins, then all that is needed is to put wooden shields in a vertical plane at the junction of the walls of the pyramidal boxes forming dihedral angles. However, one should not bring the shields too close to the surface of the water, since in this case cycles (whirlpools) will be created to facilitate the entry of rubber or gutta-percha into the settling tanks through the sectoral closures. Sector valves 8 are installed at the tops of the pyramid boxes to regulate the discharge of sludge and water into the septic tanks. Sector closures make it possible to precisely regulate the removal of bark, wood and water into the septic tanks. In case of clogging of the installed hole, which in practice happens very rarely, by rapid movement of the lever, i.e. by increasing the opening of the pie gate, the clogging is eliminated, And the size of the opening of the lever by moving the lever or the handwheel leads to the previous position. Removing clogging in no way disrupts the normal flow of the process. The establishment of the required hole in the sector gate is performed by no-J means of a handwheel mounted on an iron rod 10. Iron CTeAj at the sector shutter is connected to the core of the gate by means of a rod 9, opening it, or closing it, its opening with a corresponding rotation of the handwheel 11. The handwheel is installed at site monitoring process at this stage of it. Above the surface of the pyramids. The I8 sections of iron pipes 4 or sections of pneumatic hoses, or of grooves covered with a special cloth (pneumatic) or other porous material of appropriate density are installed. The sections of iron tubes 4 are a row of 3-4 iron tubes or more, in accordance with the separator spreadors connected to each other by means of crosses 14. The tubes are provided with holes arranged in a horizontal plane and in a checkerboard pattern for entry into the water separator saturated with air. . The tubes are divided into parts in a vertical plane, perpendicular to the length of the tubes, and give different sections of the section from the beginning to the end of the separator, depending on the need, different degrees of water saturation with air bubbles and different size of air bubbles, adjusting their flow with valves 7, installed on the corresponding: -the corresponding water supply. highway x 5. The water supply or air passage with the branch pipes extending from it is located in the depth of the apparatus along it under the middle tube of the section. In this case, sections of iron tubes are not a device for crushing air into bubbles of the required size, but only as a device for introducing water saturated with air into the separator, which constitutes an excess feature from sections consisting of troughs covered by pneumatic cloth. . Sections of t of yellows 4, overlapped by pneumatic /% tissue, are p; g; narrow grooves 1, to which the spring is attached pneumatically. The troughs are connected via air ducts 5 with a conventional fan, for example. A rue is used to inject air that passes through a fabric of proper density and is crushed into bubbles of a certain size. Bridges, if necessary, are divided into sections in a vertical plane perpendicular to the lengths of the beams. The valves 7 for changing the air pressure in the sections are located on the air inlet pipes 6, which depart from the common air conduit, and regulate the number of bubbles and their size, which is decisive in the described method. The required size of bubbles along the length of the tank can be obtained in another way, for example, by selecting a fabric of appropriate density. The ashes, nepeKpbiTbie pneumatic cloth, are a device that breaks air into small bubbles and at the same time introduces small

air bubbles into the separator. In this case, it is enough to have one of the usual fans, for example Ruth, to inject air, as in the case of sections of iron tubes with holes it is necessary to have any apparatus that breaks air into small bubbles, for example flotation device Ruta, or centrifugal pump, etc.

The narrow, cholobi, overlapped by a pneumatic cloth, are so far apart from each other that they do not interfere with the diverted material (bark, wood, and other mechanical impurities) to pass between them and go further to the sump.

In order to avoid sludge settling on the surface of the troughs, the fabric is attached in the form of a gable roof 15 or in the form of a semicircle 16.

In these two cases, in addition to better creeping of the material into the gaps between the cholos, air bubbles will emit into the gaps between the cholos, which will create a more uniform saturation of the water in the reservoir with air bubbles. For stronger aeration, an adaptation consisting of a wooden

or a metal bottom 19 to which, with a margin to form a semicircular fabric surface, a pneumatic fabric is attached; at the same time, both the side walls of the aerator and its top consist of pneumatic tissue, which makes it possible to aerate water simultaneously from the three surfaces of the aerator (two side and one top).

For better aeration, pneumatic tissue hose sections are used for this aerator section, where the entire surface of the sleeves 18 performs the aeration task.

The subject matter of the invention.

 A method of separating rubber and gutta-percha from an aqueous suspension by aeration with continuous removal of water and sludge, characterized in that the aqueous suspension of rubber or gutta-percha is saturated with air by introducing air into the tank through troughs covered with pneumatic cloth or through a section of pneumatic sleeves of the same fabric.

to the author's certificate of K. Ya. Savitsky

jyb 41179

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