Platform vibrators are installed on opposite sides of the frame at an angle of 180° relative to each other and create three-dimensional vibration of the vibrating screen. Changing the angle of inclination of the vibrators allows you to change the direction of vibration, and adjusting the location of the unbalances and adjusting the speed of rotation of the vibrators allows you to change the speed and productivity of the vibrating sieve. Thus, it is possible to change the nature of the movement of the product and the time it remains on the sieve, which allows the vibrating sieve to be used for sifting a wide range of powders with different particle sizes and shapes, bulk density, compactability and stickiness.

The bulk mass is uniformly fed through the upper central pipe using a feeding device (sluice or screw feeder, chain conveyor, dispenser, etc.) into the sieve. Consistently passing through several sieves with different sizes cells, the original product is divided into fractions due to vibrations of the vibrating frame. Particle size less cell sieves pass through it, and larger ones are retained on the mesh and, under the influence of vibrations, are discharged through the side pipe. One vibration separator can have from 1 to 3 decks (sieves) installed, which ensures the separation of material from 2 to 4 fractions.

Coarse cleaning means are mainly represented by mechanical vibration units (vibrating sieves), capable of removing large sludge larger than 100 microns. without significantly disrupting the pumping speed of the drilling fluid.

In shakers, cuttings are separated from drilling fluid using a screening device. Single-tier double vibrating sieves SV-2, SV-2B, LVS-1 and single-tier double-mesh vibrating sieves VS-1 are used. According to the principle of operation, all vibrating sieves are similar.

The figure shows a schematic representation of a vibrating sieve. Its main elements are as follows: a tray for collecting the purified solution 7, a receiver with a flow distributor 2, a vibrating frame 5 with a mesh 4, a vibrator 3, shock absorbers 6.

Vibrating sieve SV-2

There are no fundamental differences among the vibrating screens. Thus, the SV-2 vibrating sieve consists of a welded frame 1 with a receiving tank on which a distribution chute 2, two electric motors 3 are installed to drive a vibrating frame 5 and shock absorbers 6. Each of the two vibrating frames rests on four rubber shock absorbers and has a vibrator with a shaft eccentric , which is driven by an electric motor via a V-belt drive, covered by a guard 4. A working mesh is stretched between the drums 7. The grids are inclined horizontally at an angle of 12-18 degrees.

In BC-1, a replaceable cassette with grids is mounted on a vibrating frame. The vibrating frame is supported by four coil spring shock absorbers attached to the screen frame.

The frame consists of a base, two sidewalls, bolted together. The sidewalls are additionally fastened with a spacer, drive frame, and vibrator housing. The vibrator housing contains a shaft with imbalances that provide the required vibration amplitude. An electric motor is located on the drive frame, connected to the vibrator by a V-belt drive. On the opposite side of the drive frame there are weights that balance the drive.

During installation, vibrating screens are installed on the circulation system cleaning unit above the tank and secured with bolts. Deviations of the frame from the horizontal position are no more than 5 mm. A platform with a fence at least 0.75 m wide is installed around the vibrating sieve. The receiving pipe (chute) of the vibrating sieve is connected by a pipe to the wellhead. To bring the vibrating screen into working position, unscrew the four transport bolts securing the vibrating frame. Install the electric motor and put on two V-belts. When installing cassettes with mesh, check the presence of rubber protrusions on the base of the mesh and their correct location. The cassettes are installed in such a way that there are equal gaps on each side, after which the bolts are tightened with clamps until the spring coils touch.

The LVS 1 vibrating sieve with linear vibrations was developed by analogy with the best foreign examples of similar products. The linear single-tier vibrating sieve LVS-1 is designed for cleaning drilling mud from particles of drill cuttings when drilling oil and gas wells. Equipped with two flexible three-layer cassettes. Depending on the design of the equipment, the magnitude of the disturbing force of the vibrator can be adjusted.

Technical characteristics of vibrating sieve LAN 1

Name of parameters
Grid type	flexible, tension	flexible, tension
Cassette size, mm
Vibration frame vibration frequency, Hz
Installation angle of the vibrating frame relative to the base, degrees.
Total installed capacity two motor vibrators, kW, no more
Product weight, kg. no more
Options	Execution options
	Explosion-proof 1Exd	Increased reliability from explosion II Exe
		Zone - B-1
	Indoor and outdoor spaces	Open outdoor spaces only

A linear vibrating sieve with one tier of filter meshes LVS-1K with rigid frame cassettes (hereinafter referred to as LVS 1K) is intended for cleaning drilling fluid from particles of drill cuttings when drilling oil and gas wells in a temperate macroclimatic region in accordance with GOST 16350. The temperature of the working environment during operation is not below 1°C.

The scope of application is in industries related to the purification of liquids from contaminants (mechanical particles), dehydration of sludge contaminants. Depending on the design of the equipment, the magnitude of the disturbing force of the vibrator can be adjusted.

Technical characteristics of vibrating sieve LVS-1K

Name of parameters	LAN 1K with rigid frame cassettes of the "Brandt" type
Throughput, m3/s, not less
Grid type	rigid, frame	rigid, frame
Number of cassettes
Working surface, m2, not less
Cassette size, mm
Vibrating frame vibration frequency, Hz
Vibration frame vibration amplitude, mm
Maximum total disturbing force of the vibrator motor, kN
Installation angle of the vibrating frame relative to the base,°
Total installed power of two motor vibrators, kW, no more
Specific power, kWm3 sec1, no more
Overall dimensions, mm no more than length width height
Product weight, kg. no more
Options	Execution options
Explosion protection degree, marking	Explosion-proof 1Exd	Increased reliability from explosion II Exe
Permitted zone, chapter 7.3 PUE-00		Zone - B-1
Permitted conditions of use	Closed spaces and open spaces	Only open external

Vibrating sieves are a convenient and compact technique for mechanical fractional separation bulk materials different types. Equipment of this type is suitable for sifting sand, crushed stone, microcalcite, marble, slag, coal, and solutions. Industrial vibrating sieves have repeatedly proven their effectiveness in the chemical, mining, and food industries.

Design features of vibrating sieves

The round multi-level vibrating sieves presented by us work on the principle of dividing bulk products into fractions using vertical system Dec. The decks are mounted in a sealed housing equipped with openings for unloading the final product. The top of the device is tightly closed with a lid. Our vibrating sieves for bulk materials consist of the following elements:

• Screen deck with mesh or perforated sheet. The mesh size of the seeding surface varies depending on the classification stage.
• Electric motor with drive unit and eccentric blocks.
• Sealed housing with removable lid.
• Vibrating plate.
• Support frame with legs. Our products are stable even on uneven surfaces.

The design of the vibrating sieve for fine sieving provides for the installation of up to 5 mesh working parts. This arrangement allows you to sift sand and other bulk materials and obtain fractions various sizes(0.1-15 mm). Finished product unloaded through special outlets in a round housing.

Our vibrating sieve for fine screening has compact dimensions and high productivity. The standard number of decks is 1-3 pieces, but if necessary, it is possible to install up to 5 working surfaces. Depending on the number of decks and their surface area, the productivity of vibrating screens for sand and other materials is up to 12 t/hour.

Round vibrating screens: buy at factory price

We offer products own production at reasonable prices with delivery anywhere in Russia. Products in standard versions are already in our database and are sent within 1-2 days after submitting an application. If you require custom-made devices or vibrating sieves with ultrasonic cleaning, we will produce them by prior arrangement. Our consultants will tell you more about the characteristics of our products by phone.

Vibrating sieve. Specifications

	Options
	Case diameter, mm	Productivity*, tons/hour	Surface area of ​​one deck, m2	Number of dec**, pcs.	Installed power, W	Weight, kg	Diameter, mm	Height up to***, mm
SV-900
SV-1200
SV-1400
SV-1700

* - productivity depends on the type of material being processed and the size of the sieve cells;

** - the number of decks can be increased to 5 upon request;

*** - weight depends on the number of vibrating sieve decks.

With the help of our company's consultants, you can buy suitable model vibrating sieve at the price of the manufacturer. Our catalog includes vibrating screens SV-900, SV-1200, SV-1400 and SV-1700 with different areas screen surface and productivity.

Vibrotekhnika develops, produces and introduces vibrating sieves (CB-0.4, CB-0.6, CB-0.9, CB-1.2).

Vibrating sieves are designed for dust-tight sieving into several fractions of bulk materials that are not prone to sticking, with a particle size of no more than 30 mm, with temperatures up to 323K (+50°C).

They are a single-mass freely oscillating over-resonant system. They consist of a working body, a vibration exciter, elastic links, a frame and an engine. The working body includes a set of cylindrical shells and screening surfaces in the form of meshes, mounted on frames assembled using quick-release clamps; rotation of the vibration exciter shaft is transmitted from the engine through an elastic flap coupling. The loading and unloading pipes are equipped with rubber seals.

They are highly productive, efficient and reliable devices for sifting powdery, granular and lump materials and can be used for dehydration of materials. As long-term operating experience shows, vibrating screens are not inferior in their technical level to foreign analogues and they are significantly cheaper.

The productivity of vibrating screens is subject to experimental determination in each specific case, depending on the properties of the processed material and the size of the mesh cells. Vibrating screens are manufactured with a working body made of carbon or stainless steel.

As delivered, sieves are usually equipped with mesh sizes of 2 and 0.63 mm. Along with the screens, devices for tensioning the mesh onto the frames and a spare frame are supplied at an additional cost, which can significantly reduce the time for replacing the mesh.

Indicators	Meaning
Case diameter, m	0,4	0,6	0,9	1.2
Screen surface, m2	0,11	0,28	0,6	1,0
Number of factions	2...3	2...4
Engine power, kW	0,25	0,37	0,75	1,1
Overall dimensions, max:
height, mm	740	1237	1380	1565
length, mm	590	1000	1300	1720
width, mm	565	1000	1300	1720
Weight, max, kg	51	143	250	444