portable trommel screen
Capacity: 1-100TPH
Feeding size: <6mm
Feeding density: 0-50%
Application: Sand and gravel aggregate and ore grading and screening, washing processing, coal, gold, diamond ore, silica sand, quartz stone and other ore with low mud content.
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Overview
Introduction: Trommel screens are one of the oldest screening devices, their structures are very simple but yet with high sorting accuracy and efficiency.
Trommels remain widely used in some screening operation, including aggregate screening plants and the screening of mill discharge streams. They are also used for wet-scrubbing ores, such as Bauxite, alluvial gold, diamond ores and etc. Usually combined with a gold sluice box to form a one-stop small gold wash plant. Customized fixed and mobile/portable trommel screens.
Gold trommel screen can handle material from 55 mm down to 6 mm, and even smaller sizes can be handled under wet screening conditions. Trommel screen remain widely and often work with the screening of mill discharge streams. Tumbling mill (AG, SAG, rod, and ball mills) discharge streams usually pass through a trommel screen attached to the mill outlet to prevent grinding media scats from reaching subsequent processing equipment, and the case of AG/SAG mills, to extract pebbles to send to crushing stage.
Working principle Of trommel screen
Trommels are installed on a small angle to the horizontal or use a series of internal baffles to transport material along with the cylinder.
When the feeding material enters the roller trommel, due to the tilt and rotation of the trommel, the material on the screen surface is turned and rolled, so that the qualified material (under-screen product) is discharged through the outlet at the bottom of the rear end of the roller, and the unqualified material (upper-screen product) is discharged through the discharge port at the rear of the trommel.
models & specifications
| Model | Capacity | Power | Drum diameter | Drum length | Screen size | Dimension | Weight |
| (t/h) | (kw) | (mm) | (mm) | (mm) | (mm) | (kg) | |
| GT1015 | 10-15 | 4 | 1000 | 1500 | <3～10 | 3000*1400*2145 | 2200 |
| GT1020 | 15-25 | 5.5 | 1000 | 2000 | 3460*1400*2145 | 2800 | |
| GT1225 | 25-40 | 7.5 | 1200 | 2500 | 4146*1600*2680 | 4200 | |
| GT1530 | 60-80 | 11 | 1500 | 3000 | 4460*1900*2820 | 5100 | |
| GT1545 | 80-150 | 15 | 1500 | 4500 | 5960*1900*3080 | 6000 | |
| GT1848 | 150-200 | 22 | 1800 | 4800 | 6500*2300*4000 | 7500 | |
| GT2055 | 200-600 | 30 | 2000 | 5500 | 7500*2500*4000 | 8600 |
★ The screen hole is not easy to be blocked, the operation is stable, and the operation noise produced is low.
★ Simple structure and easy to maintain.
★ The sieving cylinder can be closed, which is easy to collect dust.
★ A higher screening efficiency and longer service life can achieved by adapting a special screen.
★ High screening efficiency.
★ Good working environment.
★ Low equipment noise.
The entire screening is designed in a sealed dust cover, which eliminates the flying dust during the screening process, thereby improving the working environment.
During the operation of the equipment, the noise generated by the material and the rotating screen is completely isolated by the sealed dust cover, so that the noise cannot be transmitted to the outside of the equipment, thereby reducing the noise of the equipment.
The drum body of the drum screen is generally divided into several sections, depending on the specific situation, the screen holes are arranged from small to large, and the screen hole diameter on each section is the same.
In order to improve the sorting accuracy and avoid the situation where small particles are screened out in the large-aperture screen section, the feeding materials must be fully turned in the trommel screen, and the movement speed of those materials cannot be too fast.
Generally, the inner wall of the trommel is equipped with a flex plate. Its role is to raise the feeding particles so that particles with different sizes get as many opportunities as possible to contact the sieve hole.
If the hole diameter meets the requirements, the particles can pass through the sieve and get sorted.
Also, the trommel screen generally has a relatively strict installation angle, usually, this angle is 5°. Of course, under actual circumstances, it can be adjusted as needed.
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