SU378249A1 - HYDRAULIC CLASSIFIER P ^^^:; ^ " - Google Patents

Description

The invention relates to a technique for the hydraulic classification of granular materials and can be used in the building materials industry.

A hydraulic classifier for granular materials is known, comprising a housing with dispensing pockets located in its lower part, connection with the classifying chambers, adjustable mesh tongs and a feed inlet, to the upper edge of which a screen is attached.

The aim of the invention is to improve the efficiency of the separation process.

This is achieved by the fact that the casing is mounted on the shchaya, Rni, Rny supports, equipped with regulating means for changing their height, the classifying chambers are also mounted on hinges, and a filtering water inlet is integrated into the side wall of the last pocket.

The filter water collector can be made in the form of a confuser, the receiving window of which is blocked by a grid, and the outlet opening is connected to a pipe; a wire into which a vane pump is integrated.

In order to intensify the processes of separation of materials and water clarification, adjustable mesh gateways and a water sump mesh are equipped with vibrators.

FIG. 1 schematically shows the proposed hydraulic classifier, side view; in fig. 2 - the same, top view.

In the lower part of the body / there are located separation pockets 2, to which the soil collecting container 3 is attached, equipped with devices 4 for automatic unloading of classified material. Horizontal joints are installed in the plane of the connection of the pockets 2 with the soil collectors.

5, of which the classifying chambers 6 are suspended with the water distribution collectors 7 and the tensioning devices 8, which provide for the vertical installation of the classifying chambers. Water distribution collectors 7 through flexible hoses connected to the conduit 9, which supplies additional water to the classification. Airtightness in the plane of suspension of the classifying chambers is ensured by elastic diaphragms 10. At the borders of the separation pockets 2, rotary sieve gates are mounted, to which vibrators 12 are connected to intensify the material separation process. Into the front wall

housing 1 inlet fitting 13, to the upper edge of which is attached a diverting screen 14, streamlined connected to the rear wall of the housing, ending with a collector collector 15. For

tilt change hydroclassifier

It has articulated supports 16 with adjusting devices 17 for varying the height of the supports.

Into the wall of the last pocket is a mesh water inlet 18, built in the form of a confuser, the receiving window of which is blocked by a grid 19 with a vibrator 12 connected to it, and the output window is connected to a pipe 20 in which a loader pump 21 with an actuator 22 is embedded.

The initial slurry from the suction dredger or by using other means of hydromechanization through the feed inlet 13 is fed into the housing /, where the main separation process of the granular material takes place in the semi-finite submerged jet mode; At the same time, in the separation pockets 2, a material is deposited with a successive reduction by size or specific weight.

Additional purification of the material from adjacent fractions is carried out by supplying clean water to the classifying chambers 6 and with the help of vibrating screen shakers. The classification products as they are accumulated in the soil collectors 3 by the automatic device 4 are delivered to conveyors or other means of transport.

When the flow rate of the initial slurry deviates from the calculated value, the horizontal component of the speed of movement of the particles and their deposition trajectory in the housing / changes, leading to clogging of large or small fractions adjacent. To adjust the apparatus to the specified classification mode using adjusting devices 17, the height of the hinged supports 16 and, consequently, the angle of tilt of the classifier in the desired direction is changed, using the tensioning devices 8 to maintain the vertical position of the classifying chambers 6.

In cases where there is no additional water or a large amount of water at the facility, the clarified part of the slurry is used for classification. For this, the pipe 20 is connected to the pipe 9, the vibrator 12 of the mesh 19 of the water collector and the drive 22 of the vane pump 21 are connected, which provide for the supply of clarified water to the classifying chambers 6.

Subject invention

Claims (3)

1.Hydraulic classifier for granular materials, comprising a housing with distributing pockets located in its lower part, connected to the classifying chambers, adjustable mesh gables and a feed inlet, to the top edge of which a screen is attached, characterized in that, in order to improve the process efficiency separation, the housing is mounted on hinge supports equipped with adjusting devices for changing their height, and classifying the chambers are also mounted on the hinges, and a filtering water inlet is built into the side wall of the last pocket. 2. Classifier according to claim 1, characterized in that the filtering water collection container is made in the form of a confuser, the receiving window of which is blocked by a grid, and the outlet opening is connected to a pipeline in which the vane pump is integrated. 3. Classifier on the PP. 1 and 2, characterized in that, in order to intensify the processes of separation of materials and water clarification, adjustable mesh gables and mesh water collector equipped with vibrators. / J / ID 5 e 12 11} Fig f FIG. 2