SU1004204A1 - Apparatus for removing viscous substances from vessels - Google Patents

Description

(54) DEVICE FOR EXTRACTING VISCOUS SUBSTANCES FROM CAPACITIES

one

The invention relates to processes for the extraction of elasto-plastic materials from containers, for example rosin, resins, bitumens and similar materials, and can be used in the chemical, optical and other industries.

A device for extracting viscous substances melting at a relatively low temperature is known, which contains a vibration heater 1.

However, the rates of heating and melting by these heaters are low, because the circulation movement of fluid caused by the vibration of the heater extends a small distance from the heater. In addition, after the material is melted with such devices, an immersion pump-out mechanism is required.

A device for extracting viscous substances from containers is known, which contains a vibration heater and a mechanism for pumping out the melt 2.

However, the known device cannot be used to melt solid materials, as well as to discharge the melt.

of the tanks, it is necessary to use an additional pump, which increases the cost of equipment and reduces productivity.

The purpose of the invention is to increase productivity by intensifying the processes of heat exchange and melting.

The goal is achieved by the fact that in a device for the extraction of viscous substances from tanks containing a vibratory heater

10 and a melt pumping mechanism, a vibratory heater consists of two coaxially arranged pipes and a heating element disposed therebetween, and a melt pumping mechanism represents suction-discharge and distribution valves installed respectively in the lower and upper parts of the inner vibrator tube.

FIG. 1 shows a device for extracting viscous substances from containers.

20 general view; in fig. 2 — heater-pump design, slit.

A device for extracting viscous substances, for example rosin and similar materials, from tanks consists of a lift 1, an E5 vibrator 2, a heater - a pump 3, a frame 4, a clamp 5 for a container 6.

The heater-pump 3 consists of two concentric pipes 7 and 8, between which an electric heating element 9 is placed, and in the cavity of the internal pipe 8 there is a suction discharge to tap 10, which is a circular plate with a guide on which a spring 11 is fitted c in a collar 12 located on the inner surface of the inner pipe 8. The valve 10 is pressed by the spring 1 1 to the seat, which is formed on the inner surface of the valve 13, which is simultaneously a kryinka covering the electr heater

A distribution valve 14 is located in the upper part of the inner pipe 8. Connecting the cavity of the pipe with the receiving reservoir aperture 15 or directing molten material to circulation through the openings 16. The distribution valve can be in the form of a two-way valve controlled by an electromagnet (not shown) . At the top of the heater of the pump 3 there is a device for fastening it to the vibrator. In order to accelerate the process of immersion of a heat exchanger. 1, a pump 3 into a solid material and to increase the ramp dimensionality of heating, it is necessary to preferentially heat the lower immersible end of the heater, that core1 is more densely wrapped around the heating element. To reduce the diameter of the heater of the pump and increase the useful volume as a heating element of 1m. You can use a film heater (not shown 1).

The heater-pump 3 is immersed under the action of pressure, which is exerted by the lifting mechanism 1 of the container 6 with the material and by the action of vibration. It can also be immersed under the action of only pressure or only vibrations, and it does not matter for the device, the heater is immersed by lowering the vibrator or by raising the container.

As an example, the device diagram shows an eccentric vibrator 2 of a slider type and a screw elevator 1.

The operation of the device is as follows.

The container 6 is placed on the table of the elevator 1 and secured with clamps, o. Disengage the container and install vibration heaters-pumps 3 opposite the hatch. The heater power supply is turned on - pump 3. When the optimum temperature for melting this material is reached, the heater temperature - pump 3 energizes the drive of the elevator 1 and the vibrator 2 and raises the table of the elevator 1 at a speed equal to that of the linear melting speed and immerses the heating pump 3 material while simultaneously vibrating heater 3. When immersing a heater - pump 3 without vibration, the vibration drive is activated after full or partial immersion of the heater - pump 3 for ntensifikapii process of melting and pumping the melt. When the material is immersed and melted, the melt is circulated through the circulating holes 16 in the heater housing — the pump 3 is fed to the heater surface

- or on unmelted material, thereby achieving closed circulation flows. The circulatory pressure of the melt significantly increases heat transfer and the rate of melting. After melting with distribution valve 14

the melt is directed to the receiving tank through the hole 15.

Under the action of vibration, the heating pump 3 with its guide knife 13 is immersed in a heated, elasto-plastic material, which is sucked in a suction discharge valve 10 periodically in portions into the internal cavity of the pipe 8 and then with the help of a distribution valve either fed into the receiving tank or circulated.

5 At the same time, it is possible to install several heaters-pumps, increasing melting and pumping rates. The proposed device for the extraction of rosin and similar materials tested in a laboratory setup, consisting

0 from a vibroheater - a pump with an external diameter of 60 mm, a power of 0.5 kW, a VEDS-200A vibrator, a hydraulic lift and a container with a rosin with a diameter of 200 mm and a B1 of 300 mm. The immersion time of the heater pump was 5-10 minutes at a heater temperature of 200 ° C. The melting time at a frequency of 20 Hz and an amplitude of 8 mm was equal to 1 h, which is 3–4 times higher than during melting. ;) ticking vibrating heaters without organizing a forced circulation movement, and 6–8 times higher than when melting by vibrating heaters. Productivity of the pump is 10 l / min. The decrease in the melting time of the vibroheater nasos is explained significantly (in 3

 4 times) by increasing the heat exchange coefficient of the surface with the melt, which makes it possible to increase the power of the heater to 0.5 kW without increasing the surface temperature of the heater beyond the allowable one.

Q The introduction of the proposed device eliminates the time-consuming operation of manual unloading and loading of lump rosin, leads accordingly to an improvement in the sanitary and hygienic production conditions (rosin dust disappears, increases

5 production culture). The implementation of the inventive invention improves labor productivity and energy savings, and also allows the reuse of containers.

Claims (2)

1. USSR Author's Certificate No. 612101, cl. In 61 D 5/04, 1978. 2. USSR author's certificate number 212315, cl. In 61 D 5/04, 1964.