ST Equipment & Technology (STET) has developed a dry separation system using a tribo-electrostatic belt separator. This technology does not require water or chemical …
The six factors under study are: the high voltage, the rotation speed of the disks, the duration of the tribo-charging process, the duration of the separation, the fluidisation air …
Beneficiation of Ultrafine Iron Ore Using Tribo-electrostatic Separator Tom Newman, ST Equipment & Technology LL ... 9.1 m long, 1.7 m wide, and 3.2 m high. The separator power consumption is about 1 kWhr/tonne of material processed (ittner et al. 2014). Iron ore is a valuable commodity used for steel manufacturing, which is a key part of the ...
It also could be used for grain processing and some part of seed separation. ... XDF-φ250×200 high voltage electrostatic separator 1.Application XDF-φ250×200 High tension electric Separator is mainly used for the separation of Conductor minerals and Non-conductor minerals. It is also used for the classification of the same material instead ...
— The paper developed a spiral tube tribo-electrostatic separation devicefor studying the behavior of polymer particles in a free-falling high-voltage electrostatic field. ... Finally, high-voltage electrostatic separation simulations and experiments were carried out, achieving separation purities of 92.8% for PA66, 80.7% for PP (modified), and ...
— Developing a system to produce electrical potential by tribo-charging was studied. • In electrostatic separators, electrical field is produced by transformers. • New system produces continuous electrical charge by tribo-charging. • The effect of belt type, belt speed, roll type and brush width were investigated. •
— The aim of this work is to evaluate the effect of particle size on the selective sorting of fine particles in a two-rotating-disks-type tribo-aero-electrostatic separator. The experiments are carried out on a synthetic mixture composed of 50% Acrylonitrile Butadiene Styrene (ABS) and 50% Polystyrene (PS) particles of size 250 to 2000 microns.
Fig. 3. Photography of the tribo-electrostatic roll-type separator : 1. Tribo-charging device; 2. Vibratory elec-tromagnetic feeder; 3. Grounded electrode; 4. High-voltage electrode; 5. Three-compartment collector. The recovery and purity of of the PP product were calculated as follows: 1 1 2 3 Re 100PP B PP B PP B PP B m cPP m m m = × + + (1 ...
— This paper is aimed to the description of a new tribo-electrostatic separation process where the top part of the separator is constituted by two coaxial electrodes and the bottom part comprises ...
includes high tension roll, electrostatic plate, electrostatic screen and tribostatic separators. Electrostatic separators are used to separate dry, free fl owing materials with particles sizes between 40 and 800 microns that exhibit electrical conductivity differences. High Tension Roll Separator Features Light weight, thermally stable
— The tribo-aero-electrostatic separator achieves the selective sorting of mixed granular insulating materials in a fluidized bed affected by an electric field orthogonally …
— An optimal voltage of electrodes should be optimized according to the charging efficiency of the particles time after time, as a low voltage may be not enough to attract the charged particles while a high voltage may make the particles impact the electrodes and rebound into the wrong collectors. 3.3.3. Fluidized bed triboelectrostatic …
New Vibrating-Table-Type Tribo-Electrostatic Separator for Selective Sorting of Granular Plastic Wastes Abstract: Triboelectrostatic separation has already been proven its …
— The gravity-based techniques are inefficient in processing fine coals while the ... 18], tribo-electrostatic separator [19], high-gradient magnetic separator [20], etc. In general, FGX dry ...
— Custom-designed fluidized bed electrostatic separators ( Bilici et al. 2011;Dascalescu et al. 2011) and tribo-aero-electrostatic separators could also be employed for the separation of both mm-and ...
— The numerical simulation of charged particles trajectories facilitates the interpretation of the experimental results and the analysis of the factors that affect the …
Allcontrols' electrostatic (tribo-electric) polymer separation solutions include: The Hamos EKS electrostatic separator – This can split co-mingled granulated polymers (including black plastics) into very high purity fractions. The different polymer types are charged by impact in the Hamos EKS system. The impact causes one polymer type to lose electrons and the …
The DC applied voltage maintained in the tribo-electrostatic separator was in the range of 5–25 kV and changed at an increment of 5 kV. The separation studies were also carried out to study the effect of temperature on the separation of the synthetic mixture in the tribo-electrostatic separator.
— This paper is aimed to the description of a new tribo-electrostatic separation process where the top part of the separator is constituted by two coaxial electrodes and …
— Several factors affect the efficiency of the tribo-electrostatic separator which may be broadly classified into three groups [48]: (1) physical properties such as particle size, density, surface ...
— In Fig. 10, is represented the variation of the mixed product mass obtained with same samples using the free-fall tribo-electrostatic separator (FFTES) and the rotating belt separator, according to the tribo-charging time duration of the particles with the fluidized bed tribo-charger. The voltage difference between the electrodes for the FFTES ...
— Custom-designed fluidized bed electrostatic separators Dascalescu et al. 2011) and tribo-aero-electrostatic separators could also be employed for the separation of both mm-and sub-mm-size granular ...
— A tribo-aero-electrostatic separator has been recently patented for the selective sorting of granular plastics mixtures generated during the recycling of waste electrical and electronic equipments ...
— In order to intensify the electrical field, two solutions were tested and validated: (1) add a grounding electrode in the proximity of the high-voltage electrodes; (2) dispose vertically the high ...
— The tribo-charged particles are therefore attracted by the opposite polarity electrode and recovered in the collector that is placed under the separation tower. The working principle of this separator is almost similar with the free-fall tribo-electrostatic separator for which the electrodes are of rectangular shape, while. Experimental analysis
Download scientific diagram | Control variables of an electrostatic separation process: high-voltage level U roll speed n; angular ( = 30 ) and radial (s = 40 mm) position of the corona electrode ...
— The gravity-based techniques are inefficient in processing fine coals while the response to the tribo-electrostatic separator is highly encouraging [13], [14], [15]. In a tribo-electrostatic separation process, particles are triboelectrically charged by contact with other particles or a third material and then separated by an electric field.
This work is aimed the optimization of a new process of electrostatic separation of micronized isolating materials mixtures, with application at the recycling of waste electrical and electronic equipment (WEEE). The two high-voltage rotating-cylinder electrodes of the electrostatic separator are partly immersed in a fluidized bed containing the material to …
— When processing beach sands and similar minerals reserves, the electrostatic separator has the advantage of processing materials in a dry state (unlike froth flotation). In a beach sands processing plant, a …
