amplitude / frequency control systems mp elettronica

amplitude / frequency control systems mp elettronica

The PWM signals generation circuit is a critical component in this operation, which is normally made with microcontrollers and relative SW, driving a power stage to generate the vibrator sinusoidal control signal. This device is used to adjust vibration by acting on the amplitude and electromagnetic vibratory feeder frequency used in a variety of manufacturing processes.In order to drive the feeders at 3000 Vib per min you would select a 50Hz output frequency for vibrators at 6000 Vib per min, or select a frequency at 100Hz taking by into account that small shifts in the output frequency which can optimize vibration operation if it is not perfectly tuned to its own frequency. This feature has 2 enormous advantages:

MP Elettronica was established more than 30 years ago in Italy and since 1998 the quality management system of the Company is certified ISO 9001:2015. The company is based in Milan and has a local branch in Varese (Italy). Since its establishment MP Elettronica designs, engineers and manufactures controllers for electromagnetic vibrators and nowadays the company has affirmed its market leader position due to its innovative solutions and products.

alvibra - electrical vibration motors & pneumatic vibrators

alvibra - electrical vibration motors & pneumatic vibrators

If you have a task in your production which can be solved with either electric motor vibrators or with pneumatic vibrators then we are at your disposal if you need guidance as it is important to choose the right type of vibrator for the job.

vibrating feeder working principle/technical parameters,pictures, price, manufacturers - siehe industry

vibrating feeder working principle/technical parameters,pictures, price, manufacturers - siehe industry

Vibrating Feeder is also known as vibrating feeding machine; it could put lumpish, granular materials into material accepting device uniformly, timely and continuously from silos during the production process, it could feed for crusher machinery continuously and evenly in gravel production line, and coarse screening the material, widely used in the crushing and screening combination equipment of the industries such as metallurgy, coal, mineral processing, building materials, chemicals, abrasives and so on.

1, steady vibration, reliable work. 2, gridlines gap is adjustable. 3, more wearable pieces. 4, special grid design, to prevent material blocking. 5, to prevent small-quantity material abrades the wear-resistant parts, separate the small-quantity material, to increase production output. 6, can choose frequency conversion motor, to adjust the frequency, thereby changing the output, easy to control the feeding amount, no need to re-start motor frequently. Start frequency is low, considering the entire production line, easing jaw crushing, counterattack broken pressure; avoid starting high power devices frequently.

The feeding process of the feeder is to use special vibration motor or two electric motors put the vibration exciter in motion so that drives the feeding trough make periodic and reciprocating vibration along the oblique direction, when the accelerated velocity of the feeding trough is greater than the vertical gravitational acceleration, the material in the trough will be tossed, and jump forward following the parabolic trajectory, the toss and jump movement were finished instantaneously, due to continuous excitation from the excitation source, the vibration trough vibrates continuously, the coal in the trough jumps forward consecutively, so that achieves the purpose of feeding.

Vibrating Feeder handover This customer is a domestic renowned refractory matter manufacturer, the picture is a customized refractory matter production line-the vibrating feeder is used for dosing of the raw material.

* The capacity is data based on powder with specific gravity 1g/cm3. The model selection shall be based on the data such as the materials mesh, specific gravity etc.. * Special operation condition, such as high temperature, high pressure, explosive, combustible and corrosive etc, details are required for correct model selection. * If any change in the above table, subject shall prevail without notice. * The table cannot include all products, please contact with our sales engineers for more information.

checking the amplitude of a vibrating screen - metso outotec

checking the amplitude of a vibrating screen - metso outotec

Among the conditions to be checked periodically in screens, the shape of motion is one of the most important. In the chart below, one can see and verify the shape of the vibratory motion: circular (A), elliptical (B) or even linear (C).

There is an ideal relation between operating rotation, amplitude and the degree of inclination of the equipment depending on the aperture of the mesh installed on the screens. The nominal rotation is established observing the ideal operating conditions and, further, to ensure that the equipment is operated safely below the vibrating structures critical frequency.

The amplitude of vibration can be altered by changing the position of the movable counterweight. Such adjustment is performed based on the application. The screening of coarse material demands a higher amplitude than the amplitude required for the classification of fines.

The higher the operating amplitude of vibrating equipment, the shorter the service life of the equipments bearings. Bearing service life will be satisfactory even if all the available eccentric mass that was originally provided with the equipment is used.

Warning: Never utilize eccentric masses that are greater than those provided as original equipment. This will lead to a considerable drop in the service life of the bearings, as well as a possible unbalancing of the vibrating equipment.

In order to precisely measure and analyze the dynamic performance of vibratory screens, we developed ScreenCheck, a hand-held electronic testing device featuring wireless electronic sensors and automated software.

electromagnetic tubular feeder

electromagnetic tubular feeder

IFE vibrating tubular feeders with electromagnetic drive are used for bin extraction and for conveying of bulk material. Typically they are used to convey dusty material or used to protect material from ambient conditions. Inlet and outlet can be sealed of by means of elastic sleeves. Applications include dosing, extended feeding of weigh bins, or weigh feeders for steady and smooth feeding for downstream equipment. The vibrating feeders are built in a welded design, driven by an IFE electromagnetic drive.

The IFE electromagnetic drive and the feeder or tube form a vibrating system consisting of two masses. The excitation of the vibration is made by the pumping force of the magnet being connected to the mains via an IFE-control unit. The amplitude of the vibration can be adjusted while in operation. These electromagnetic drives are manufactured for robustness and are dust- and splashproof due to the total enclosed design.

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checking the amplitude of a vibrating screen - quarry

checking the amplitude of a vibrating screen - quarry

{{image3-a:r-w:300}}Changing the position of the moveable counterweight can alter the amplitude of vibration. Such adjustment is performed based on the application. The screening of coarse material demands higher amplitude than that required for the classification of fines.

The higher the operating amplitude of vibrating equipment, the shorter the service life of the equipments bearings. Bearing service life will be satisfactory even if all available eccentric mass that was originally provided with the equipment is used.

{{image4-a:r-w:300}}Operators are advised to never utilise eccentric masses that are greater than those provided with the original equipment. This will lead to a considerable drop in the service life of the bearings, and a possible unbalancing of the vibrating equipment.

To precisely measure and analyse the dynamic performance of vibratory screens, Metso has developed the ScreenCheck kit, which includes numerous hand-held electronic testing devices featuring wireless electronic sensors and automated software.

The ScreenCheck devices can be fixed to the side of a screen and a number of tests performed, including orbit measurements, side displacement, structural movement and bump checks (the last with a mallet). These tests measure stroke, angle and peak Gs on the left and right corners of the screen (orbit measurement), the feed, mid and discharge data for the three screen shafts (side displacement), and the frequency spectrum for the spring mounts (structural movement and the mallet).

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