Break Machinery has recently developed a new filtering machine, with a screw discharge system, that delivers many advantages
The Padua-based company has recently developed a new filtering machine, with a screw discharge system, capable of bringing numerous advantages to the line into which it is integrated, whether new or existing, and for which three patents have been granted.
Break DUO is designed for the filtration of various types of plastics. It enables the processing of materials with high percentages of impurities (up to 15% by weight depending on the type of pollutant) and can handle different types of contamination.
The DUO guarantees high process stability and helps extend the life of consumables (filter and blades).
Furthermore, while maintaining its small size, the presence of two filters allows for a large filtering surface area and increases the productivity of the entire line, working up to 12.000 kg/h.
In order to meet the different market demands, Break has created variants of the DUO, which is now available in 4 sizes: 1400-1750-2800-3500.
DUO has a single filter chamber, in the centre of which is positioned a scraper impeller. The latter is positioned between the two perforated plates that in turn support the breakers, one fixed to the bottom of the chamber and the other to the cover.
Finally, there is a discharge screw positioned in the centre of the various elements and in communication with the inside of the impeller; the worm screw conveys the contamination to the outside, and does so continuously.
Scraping operating mode
The melted plastic material (1) is conveyed into the filter chamber (2) and passes through two opposing filters (3).
Between the two filters is a scraper disc (4), equipped with interchangeable blades, which rotates to remove the contamination deposited on the filters by channelling it into the scraper disc itself (5).
The centre of the scraper disc is in communication with an independent discharge screw (6) that ejects the contaminated material.
The melted plastic material filtered (7) from the two filters rejoins the exit channel (8) to pass on to the next process.
Duo 5600 and 7000 Twin, screen change without downtime
Those involved in plastic regeneration need to process materials that are increasingly contaminated, but they also need to be able to increase production volumes and, in many cases, it is required that the process can continue without interruption.
The Break Machinery team has developed a new solution that has a dual function:
- Keep the size of the system components small to facilitate filter replacement, while increasing the filter surface area
- Ensure process stability and continuity,
DUO 5600 and 7000 Twin allow outputs of up to 10.000 and 12.000 kg/h respectively.
Duo Twin consists of two Duo screen changers of the same size (2800 or 3500) operating in parallel.
When it becomes necessary to change the filter in the first machine, the flow of that branch of the line is interrupted, and production remains active only on the other branch, connected to the second filter changer.
In this way, production is not interrupted and the filter can be changed, without having to stop the line. The same process is then carried out for changing the filter in the second machine.
