Maliy pr. V. O., 62/2, liter A, St. Petersburg, Russian Federation, 199178

Circular Vibratory Screener GR 30

INDUSTRIES

 Mining

 Metallurgical

Food

 Construction

 Chemical

Pharmaceutical

 APPLICATIONS

Diamonds, ferroalloys, ore, metal powders, coal, glass, ceramics, polymers, peat, cereals, coffee.

    
    

CHARACTERISTICS

PARAMETRES

VALUES

Sieve diameter, mm

300

Type of vibration drive

VP 30, VP 30T, VP 50

Vibration frequency (vibrations / minute)

1500

Amplitude of oscillations (depending on the weight of the sample and the number of sieves), mm

VP 30, VP 30T

0,25-0,75

VP 50

2 — 4

50 Hz supply voltage, V

VP 30, VP 30T

220

VP 50

220 / 380

Maximum number of sieves

VP 30, VP 30T

5

VP 50

12

Length, mm

VP 30, VP 30T

390

VP 50

565

Width, mm

VP 30, VP 30T

350

VP 50

550

Height, mm

VP 30, VP 30T

550

VP 50

1155

Maximum weight, kg

VP 30, VP 30T

28

VP 50

86

ADVANTAGES

EFFECTIVE SIEVING

The vibration drive platform performs high-frequency reciprocating helical oscillations, which provides a spiral-shaped trajectory of particles along the sieving surface — from the center to the periphery of the sieve.

DIVISION INTO 6 OR 11 CLASSES OF PARTICLE SIZE

Installation on VP 30 or VP 30T vibration drives up to 5 sieves allows dividing the sample into 6 classes of size. Installation on VP 50 vibration drive up to 10 sieves allows dividing the sample into 11 classes of size.

LOW NOISE

Elastic drive elements and rubber shock absorbers provide a low noise level. The seal of the sieve fastener and the platform, as well as the sealing rings of the sieves exclude collisions of the sieves, provide a tight connection of the column of sieves and the convenience of its disassembly.

EASY OPERATING

GR 30 Sieve shaker provides easy installation of the sieve column on the vibration drive platform. For moving the analyzer two handles in the vibration drive case are provided.

CONTINUOUS SIEVING

The use of screener sieves with discharge nozzles and bumpers provides continuous sieving of the material and its unloading in external receiving containers.

UKS BASIC SIEVE FASTENER

  • In the cross-arm of the UKS there are two guide bushings that reduce the likelihood of its distortion;
  • UKS knobs have beveled threads, which eliminate the need to scroll the knobs along the threaded rods and reduces the time of fixing the sieve column;
  • A seal is applied to the bottom surface of the cross-arm to ensure that the sieve column is held tight.

UKS-M MODERNIZED SIEVE FASTENER

  • In UKS-M one knob instead of two is used, which reduces the time of fixing the sieve column;
  • UKS-M can be operated with one hand;
  • The possibility of fixing the UKS-M cross-arm at any height reduces the installation time of the sieve column.

THREE TYPES OF COVERS

GR 30 Circular vibratory screener can be equipped with three types of covers:

  • With a funnel — for manual loading of material;
  • With a nozzle — for connecting the feeder;
  • With a membrane — for connecting flexible hoses.

DESCRIPTION OF THE DEVICE

Circular vibratory screener includes: a vibration drive, a sieving part (consisting of a set of sieves complete with cover and tray) and a sieve fastener.

The setup of the vibration drive is described in the corresponding section of the «Vibration drives» page.

The set of screener sieves is fixed on the platform of the vibration drive using sieve fastener. GR 30 screener sieve consists of upper and lower frame and a sieving surface made of metal mesh or perforated plate.

A window in the frame and a discharge nozzle are provided for unloading the oversize product. To direct the flow of material particles into the window, a bumper inside the sieve is mounted.

OPERATING PRINCIPLE

The sieving of the material is carried out using one or more screener sieves, tray and cover. The number of sieves, as well as the mesh size or the size and shape of the apertures of the perforated plate are determined by the conditions of the analysis.

The material to be sieved is loaded into the upper sieve through the funnel, the nozzle or the membrane of the cover. The sieve column complete with tray and cover must be shaken using a VP 30, VP 30T or VP 50 vibration drive. Using the vibration drive allows to increase productivity of sieving due to high-frequency reciprocating screw oscillations of the platform on which the column of sieves is fixed.

Particles of material which are smaller than the size of the sells/ apertures in the sieving surface of the upper sieve fall through on the next sieve, where the cycle repeats; larger particles move along the surface of the screening element and, due to the bumper, fall into the nozzle and are unloaded from the sieve into the receiving containers. As a result, the material is distributed in the receiving containers in accordance with the fractional content.


PRODUCTION OPTIONS

GR 30 sieve scheme

GR 30 Circular vibratory screener on T 80 stand