SU103110A1 - Centrifugal jigging machine - Google Patents

Description

Centrifugal jigging machines with a rotating drum, equipped with a cylindrical screen for bedding and material to be divided, with mechanisms for creating pulsations in the undersize space and for unloading iodine sieve product are known.

A distinctive feature of the machine according to the invention is the armature) 1e on the periphery of the drum of a row of communicating blade paddles with it, whose working organs - the paddle wheels - are connected with the drive to impart forced rotation to them. This embodiment of the machine provides continuous unloading of the sub-network product entering the gate from the drum by feeding the latter to the discharge hole of the gate for ejection by centrifugal force.

FIG. 1 shows a schematic centrifugal jigging machine in vertical section; in fig. 2 shows the paddle stopper of the machine; in fig. 3 - drive loiastnogo shutter.

The described centrifugal jigging machine is made in the form of a drum (1), inside of which there is a working chamber (2) rotating with the drum. The lateral cylindrical surface of the chamber is made with perforations (3) and is internally closed with a grid (4) pressed against the pencil, forming a cylindrical screen. In the bottom of the chamber there are openings (5), covered with rubber clapages, through which water supplied through the tube (6) enters the undersize space. The upper end of the chamber is blocked by a circular overflow threshold, through the edge of which the tails merge.

The bed is arranged in an annular layer inside the chamber (2) of the machine, pressing the centrifugal force against the grid (4).

A rubber ring diaphragm (7) is used to create pulsations in the under-sieve space and in the bedding, which is reciprocated from the shaft (8) through its disc (9) fixed at the end. The shaft (8) passes in the axial channel of the shaft (10), rotates with it and, moreover, has mobility in the longitudinal direction. The head (I) is attached to the lower end of the shaft (8), suspended on flexible rods to the lever (12), which is driven into oscillatory motion from the eccentric (13) with variable eccentricity. The eccentric shaft is driven into rotation by the electric motor through a variator which controls the frequency of the pulsations.

The lower iodic sieve product, when it enters the iodic sieve space, is continuously discharged from it through a series of blade locks (14). located on the periphery of the drum (1). Each blade valve (14) (phpg. 2) consists of a blade metal drum (15) fixed on an axis and placed in a rubber sleeve (16) within which the shaft rotates. The clip in the longitudinal direction is compressed by the rings with the help of screws (17) and pressed tightly against the drum. The discharged material enters the drum through the nozzle (18), moves during the forced rotation of the drum and is centrifugally ejected)} by force through the hole (19) into the machine casing.

The forced rotation of the drum is effected from a roller (20) (FIG. 3) rolling around the ring (21), spread around a shaft with a certain eccentricity, the value of which can be changed. When running around the ring by means of levers (22) and (23), the pawl (24) receives an oscillating motion, which ensures the rotation of the drum (14) at the COMHE of the ratchet wheel (25) and the axis (26), this drum is fixed on KOTopoil. By adjusting the eccentricity of the ring (21), it is possible to force the ba)); papilla rotate 1, 2 or several teeth of ratchet. The load (27), the spring (28) and the lever (29) serve to provide a kinematic closing mechanism.

The drum (1) of the machine is mounted on the floor of a shaft (10) rotating in pods mounted in a support glass (30). The shaft (10) is driven by a pulley (31), which receives rotation from the electric motor through the variator. The drum is enclosed in leathers, with annular channels (32) and (33), into which the tails and the concentrate are removed, which are removed from the ical channels through the clamp (34) and (33). The machine is mounted on the supporting structure (36).

The material to be separated is loaded through a funnel (37) and dropped into the lower part of the chamber (2), where it undergoes separation under the influence of centroels forces and a pulsating jet of water. The tails are poured over the drain threshold and enter the annular gutter (33), and the concentrate (subcapital) enters the iodilating space and through the discharge device into the annular gutter (32).

The machine can be used as a classifier or thickener, for which the grid is removed from the chamber (2) and a set of separators for copy plates can be introduced.

The subject invention /

1. Pneumatic jigging machine with rotary knob (im barabi, equipped with a cylindrical sieve for joints and a material to be divided, and with mechanisms for creating nullations in the under-mesh space and for unloading the undersize product, so that it is A series of communicating with the blade valves with working elements in the form of a loiast drum connected to the irivod to communicate the forced rotation with the aim of carrying out continuous unloading of the undersize rim THE PRODUCT by supplying the latter to the discharge opening shutter tsentrobezh.noy its ejection force.

2. The form of the machine according to and. 1, characterized in that the working body of the paddle valves in the form of a paddle drum is enclosed in a casing of plastic material, for example, resips, with the aim of turning it off by squeezing it into myodolpine directionalpin.

3. The form of execution maschpny but PP. 1 and 2, characterized in that, in order to communicate to the working bodies of the blade valves in the form of paddle drums of irregular rotation, a ratchet mechanism is used as an actuator, the pawl of which is under the influence of the lever system with a roller used for rolling a stationary eccentric.

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