SU981261A1 - Apparatus for producing spheres from thermoplastic material - Google Patents

Description

The invention relates to the construction industry, in particular to the glass industry, namely to the devices for producing beads from thermoplastic materi- als ₅ such as glass, and can be used in the glass industry for the manufacture of small diameter glass beads.

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There is a known method of manufacturing spherical particles and a device for its implementation, in which the molding takes place from a molded product (glassmotor) onto a forming drum ,15, the particles are treated with a heat stream moving perpendicular to its direction of movement. A device for implementing this method reduces the cost of production, improves the quality of products, sharply increases the utilization of thermal energy C 1].

However, the formation of balls by this method is complex, in several stages. *

The closest to the proposed technical essence and the achieved result is a device for producing balls from a thermoplastic material, including a rotor with a gear surface and a molding chamber with gas burners perpendicular to it. The molding chamber is made in the form of a diffuser and is mounted with the possibility of changing the angle of inclination, and the burners are mounted parallel to the axis of the chamber. Ball forming takes place by the supportless molding method in free flight at a speed determining the size of the balls [2].

A disadvantage of the known device is the shape of the molding chamber, which does not take into account that the droplets move after acceleration, 981261 along a defined path, the curvature of which depends on their mass and speed. Due to the fact that the arched part of this chamber has a linear surface, burners creating a heat flow in this device must heat its working space of the molding chamber. Drops (balls), like any other body in free flight, move along the trajectory. This means that at the end of their flight they decrease to the bottom, and in the middle they approach the dome of the chamber. The known device in the form of a chamber determines the excessive consumption of fuel, since the burners heat the entire working space of the chamber, and also reduces the quality of the balls, since their contact with the free part at the highest point of flight is not ruled out. In addition, under certain conditions (a certain distance of the molding chamber from the gear, at a low speed of rotation and a large weight obtained by means of its Glass droplets), the known device does not exclude the formation of molded balls on the hearth of the chamber, which negatively affects the performance of the device.

The purpose of the invention is to reduce fuel consumption.

This goal is achieved by the fact that in the device for producing balls of thermoplastic material, including a rotor with a gear surface, and a molding chamber with gas burners installed perpendicular to it, the arch of the molding chamber is made concave in the form

The drawing shows to obtain balls from tichnogo ^ material, general

The device includes a molten glass for melting, a swarm has a rotor 2 with a toothed surface, rotated by an electric motor 3, and a molding chamber 4 with gas burners 5 mounted on a platform 6, which allows the molding chamber to be installed at any angle to the horizon and in height. Moving the platform along the rails 7. you can install the formorium camera at different distances from the rotor 2.

parabolas, thermoplasvid device.

itself capacity under koto35

The device operates as follows. ;

From the vessel 1 for molten glass melt the melt jet is fed to the rotor 2 with a gear surface and when it is rotated from the electric motor 3 is cut into separate drops. Flying from the rotor 2, droplets of molten glass melt moving in the center of a high-temperature gas stream moving along the arch of the molding chamber 4, having a shape corresponding to the motion path of the glass beads, are formed under the action of surface tension forces into balls. The diameter of the glass balls can be changed by changing the speed of rotation of the electric motor-3 and, therefore, of the rotor 2. In this case, the flight path of the glass balls will also change. Therefore, the device provides the possibility of correspondingly changing the location of the molding chamber 4 in relation to ₂₅ to the rotor 2, for which it is equipped with a platform 6, by means of which the ka, forming measure is set at a certain angle to the horizontal, and the distance to the rotor 2 is regulated by mixing the platform 6 along rails 7 ·

Elimination of heating of the areas of the working space of the molding chamber that are not involved in the molding of shafts allows to reduce fuel consumption and at the same time to concentrate the heat flux in the direction of the motion path of the glass beads, i.e. increase the heat transfer coefficient of the installation as a whole. The economic efficiency of the proposed device is determined by the reduction in fuel consumption and the possibility of practical implementation of the task at low capital costs for the design or reconstruction of such devices.

Claims (2)

The invention relates to the construction industry, in particular, to the glass industry, namely, devices for producing balls from thermoplastic materials, for example glass, and can be used in the glass industry for the manufacture of glass balls of small diameter. A known method for the manufacture of spherical particles and a device for its implementation, according to which the molding occurs from a molded product (glass groove) on the forming drum, the particles are treated with a heat flux moving perpendicular to the direction of its movement. A device for carrying out this method reduces the cost of production, improves the quality of products, dramatically increases the utilization rate of thermal energy of the joint venture. However, the formation of balls by this method is complex, in several stages. Closest to the proposed technical essence and the achieved result is a device for producing balls from a thermoplastic material, comprising a rotor with a toothed surface and a molding chamber with gas burners installed perpendicular to it. The forming chamber is made in the form of a diffuser and is installed with the possibility of changing the angle of inclination, and the burners are installed parallel to the axis of the chamber. The balls are molded using an unsupported free-form molding method at a speed that determines the size of the G 2 balls. A disadvantage of the known device is the shape of the shaping chamber, which does not take into account that the drops after i obtain acceleration move 3,981 from a defined trajectory, the curvatures of which depend on their mass and speed. Due to the fact that the arched part of this chamber has a linear surface, the burners, which create heat flow in this device, must heat its molding chamber working space. Drops (balls), like any other bodies in free flight, move along a trajectory. This means that at the end of their flight, they descend to the bottom, and in the middle they approach the dome of the chamber. The known device forms the overflow of fuel by the shape of the chamber, since the burners heat the entire working space of the chamber and also reduce the quality of the balls, since they do not exclude their contact with the free part at the highest flight point. In addition, under certain conditions 1 certain distance of the molding chamber from the gear wheel, at a low speed of rotation and a large weight obtained through its glass mass drops), the known device does not switch the formed balls onto the bottom part of the Chamber, which negatively affects the performance devices. The purpose of the invention is to reduce fuel consumption. This goal is achieved by the fact that in a device for producing balls of thermoplastic material, including a rotor with a toothed surface, and a molding chamber with gas burners perpendicular to it, the vault of the shaping chamber is made concave in the shape of a parabola. The drawing shows a device for producing balls from thermoplastic. O.1 material, general view. The device includes a capacitance 1 for melting the glass mass, under which the rotor 2 is located with a gear surface, driven by an electric motor 3, and a shaping chamber with gas burners 5 mounted on a platform 6, allowing to install the shaping chamber at any angle to the horizon and height. By moving the platform along the rails 7. it is possible to set the camera shape at different distances from the rotor 2. The device works as follows.; From the molten glass container 5 1 a jet of melt is fed to the rotor 2 with a serrated surface and, when it rotates from the electric motor 3, it cuts into separate drops. Meetings from the rotor 2, molten glass, moving in the center of a high-temperature gas stream moving along the roof of the molding chamber 4, having a shape similar to the movement path of the glass beads, are formed under the action of surface tension forces into balls. The diameter of the glass beads can be changed by changing the speed of rotation of the electric motor - 3 and, therefore, the rotor 2, and the flight path of the glass beads will also change. Therefore, the device provides for the possibility of appropriately changing the position of the molding chamber with respect to the rotor 2, for which it is equipped with a platform 6, with which the molding chamber is set at a certain angle to the horizon, and the distance to the rotor 2 is adjusted by passing the platform 6 along the rails 7 . Elimination of the heating of the Kame's working areas (w-molding, not taking part in the forming of balls, allows to reduce fuel consumption and at the same time concentrate the heat flow in The movement efficiency of the glass bead, i.e., increase the heat transfer coefficient of the installation as a whole. The economic efficiency of the proposed device is determined by the reduction of fuel consumption and the possibility of practical implementation of the task with little capital expenditures for the design or reconstruction of such devices. a thermoplastic material comprising a rotor with a toothed surface and perpendicular to it forming the formation of a gas with and burners, different. | atoms to reduce fuel consumption 59812616 the chamber of the molding chamber was made by vogu- 1. The USSR Certificate of Autonomy naked as a parabola From 03 to 19/10, 197. Information sources, . 2. USSR author's certificate taken into account in examination No. 532578, cl. From 03 to 19/10, 197.