Work in clean environments improves the health of the worker
December 9, 2010
The Spring series self cleaning filters are suitable for many types of machine tools, as centres of work, drilling deep, transfer, grinders, lathes, elaborations with special tools to high pressure and combined machines. Spring is especially suitable in addition to work involving boot chip, abrasion, deformation and washing. Therefore conforms to the most various requirements of the engineering industry in general and to the automotive industry in particular.
The cycle of operation
In the initial phase (A), the filter cloth is perfectly clean and dirty liquid deposited contaminants parties on the surface of the drum. The clean part becomes the interior where it is the opening of download and falls into the lower cuba. During this phase, the drum wheel and the dragante system is not stopped. The polluting material deposited on the filter fabric is true filter layer. In many applications, this filter layer can reach a thickness of 10-15 mm.
In the intermediate stage (B), the filter cloth is dirty and raises the level of the liquid. The dirty liquid continuous deposited contaminants parties on the surface of the drum. The degree of leakage improves due to the thickness of mud deposited on the filter cloth. Also in this phase the drum does not turn and the dragante system is stopped.
In the final phase of the cycle of obstruction of the cloth (C), the filter fabric no longer allows the fluid to pass, reaching the maximum level allowed. The best possible filtration degree is thus achieved. The more long is the period of operation of the filter in this condition better will be the average filter.
It is then when starts up the cycle of washing, with the intervention of the Jets who wash the fabric in upstream. In this phase the drum rotates and the dragante system turns scratching the deposited sludge.
At the end of washing the level down and becomes the intermediate condition B.
The compactor, vital in the process
The HP 150 compactor is used to reduce the volume of the sludge to waste and to reduce the amount of liquid contained therein. The reduction in volume and moisture is obtained through static load. The level of compaction that can be obtained depends on the type of mud, of the type of fluid and other factors such as the cycle times.
Its main features include:
- Treatment capacity: 50-300 cm3 hour
- Feed materials: steel/aluminium shavings sludge
- Work: rectification/machining
- Fluid process: comprehensive cutting oil emulsion
- Chip type: mud and wood chips
- Charging hopper volume: defined
- Upload method: discontinuous or continuous feed
- Efficiency of reducing volume: 40 to 20%
- Residual liquid: 30-10%
- Installed power: 0.18 kW
This sludge screw compactor is made of sheet steel electro welded, screw pressure of steel to the magnesium, compression Chamber of tempered steel, Chamber of drying of stainless steel AISI 304, with supporting with bearing areas and pendulum motorization.
For its working cycle, the mud to treat turns in the cargo hopper and after the release of the cycle, before closure of the safety devices, pushes it to the House of compaction through a worm. The future thrust of mud against the back-pressure device allows the reduction of the volume of the mud and forcing the fluid to leave. The working cycle is completely automatic. Then, the compacted mud is expelled and the recovery fluid is sent to the outside through a proper discharge tube.
The Spring series may also include optional accessories such as:
- Magnetic dragante system, to facilitate the collection of ferromagnetic chips.
- Airguard with magnetic disks.
- Air filter for the mists and vapors resulting from work processes.
- Tank for the delivery of dirty liquid to the filter.
Maintenance considerations
On the other hand, should take into account that, in order to ensure maximum efficiency of filters, is necessary to carry out operations of maintenance at regular intervals.
For example, at the end of each production cycle should visually check the status of cleaning of level controls and, if necessary, intervene with appropriate maintenance. Also, important is to ensure that the wash jets are operational and that the filter fabric is uniformly cleaned. "The presence of large dark bands may show blockage of one or more jets of washing" - warning from Daisa-. In this case you can make cleaning intervention unmounting the device of washing, predisposed to such a task, and restore the full functionality of the filter.
In addition, and on a regular basis, it is necessary to clean the external casing of the gear, the electric and other possible components to avoid recalentamientos. And in order to obtain a perfect operation of the filter are advised to regularly control the tension of the drive chain.
Similarly, it is also necessary to lubricate the support of the tree of command and the drum every 2000 hours of operation and, each year, carry out a general cleaning of the cuba and the filter eventually using special degreasing products.
