SU1755868A1 - Apparatus for automatically clarifying clay ingredients - Google Patents

Abstract

Purpose: use in the foundry industry, in construction and in other fields for the separation of materials into fractions by the sedimentation method. SUMMARY OF THE INVENTION - The device contains at least two identical vessels for molding sand or mixture to be washed, two identical feed siphon tubes and water drain, a symmetrical collector connected to siphon tubes and water supply and drain lines, a level relay with two sensors located in the vessel, and a time relay connected to a time relay and Valves 1 Il.

Description

The invention relates to the field of foundry, and can be used to determine the clay component of molding sands and mixtures.

The purpose of the invention is to reduce the specific hardware costs and increase test productivity.

The drawing shows a schematic diagram of the claimed device for the case when one vessel and one siphon tube are additionally used.

The device contains identical vessels 1 and 2 with samples of molding sand or mixture to be otmuchivaniyu identical siphon tubes 3 and 4, the suction holes of which are located at a given height from the bottom of vessels 1 and 2, the relay level 5 with sensors 6 7 - the lower and upper levels respectively, time relay 8, connected to level 5 relay, valves 9. 10 on lines 11, 12 of water supply and discharge, respectively, connected to time relay 8, symmetrical collector 13. Vessel 1 is the master, and vessel 2 is the slave.

The device works as follows

Vessels 1 and 2 with pre-prepared samples of washed sand or mixture are installed in the device. After this time relay 8 generates a signal to open valve 9. Water from the network through pipe 11, through symmetrical collector 13 and siphon tubes 3 and 4 enters vessels 1 and 2, mixing their contents due to the symmetry of the collector 13 and the sizing of siphon tubes 3 and 4 the flow of water in the vessels 1 and 2 will be equal. Since the initial levels of suspension in vessels 1 and 2 are the same, the levels of suspension during filling will also be the same. When the level of suspension in vessel 1 reaches sensor 7, relay 5 is triggered and generates a corresponding signal that turns off valve 9 and activates relay 8 time. suspensions in vessels 1 and 2 are equal; the process of upholding begins

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suspensions in which large particles settle not the bottom of vessels 1 and 2, but small fractions do not have time to settle during the time of settling. After testing the specified time of settling, the time relay turns on valve 10. Due to the fact that the piping system 11, 12, the symmetrical collector 13 and the siphon tubes 3 and 4 were filled with water, due to the siphon effect, the suspension begins to drain from the vessels 1 and 2. The levels of suspension in vessels 1 and 2 when self-leveling are self-leveling, if, for example, the level in vessel 2 relative to the suction opening in the siphon tube 4 becomes for some reason higher than the level in vessel 1, the flow rate of the suspension from vessel 2 increases, providing Leveling

At the moment when the level of suspension in vessel 1 drops below sensor 6, a level 5 relay activates and generates a corresponding signal that turns off valve 10 and turns on valve 9, that is, the process of elutriation repeats, At the moment of the start of filling, the suspension levels in the vessels are the same they equalize after each discharge operation, which eliminates the accumulation of the level difference with repeated repetition of the filling and discharge operations. The evaporation is carried out until all small fractions, e clay, are

Claims (1)

removed (washed) from samples of sand or a mixture, and the water in the vessels after settling will be clear. Since the samples are taken from the same sand or mixture, te have approximately the same clay content, the number of roasting in the vessels 1 and 2 will be approximately the same, that is, the Obmudation process ends for both vessels 1 and at the same time. After smoothing out, the clay content of each sample is determined according to standard methods and the results are averaged. Formula of the Invention A device for automatic smoothing a clay component, containing a vessel for molding sand or mixture to be washed, a siphon tube with a suction inlet located in the vessel at a given height from its bottom, a level relay with two sensors located in the vessel, valves on the water supply and discharge lines and a time relay connected to the valves and to the level relay are about lichayuschees in that, in order to increase device performance, further comprising at least one identical to said receptacle disposed therein with an identical said siphon tube and symmetric collector coupled to the siphon tubes and feed lines and discharge of water.