Discharge screw systems
Klinkenberg’s extraction screws are individually designed and produced to the client’s specifications. Our experience and knowledge of the latest technology in screw feeder systems ensure that customers are properly informed about what can be achieved with this type of dosing screw.
The dosing screw does what it is designed to do, under all circumstances and with every imaginable product. The dosing screws are available in completely gas-tight versions for dosing very fine or hazardous powders and granulates. This means that hazardous vapours and noxious odours remain inside the system! It can be made in stainless steel or other materials, including wear-resistant materials. Naturally, a lot of thought goes into sealing the axle pin apertures to guarantee dust-tight construction.
Mass flow technology
In applications where it is important to generate a mass flow, it is important that the product column above this screw gradually sinks according to the FIFO principle. This is especially important when a cooling or heating tower is positioned above the dosing screw. You need to be able to dose the product gradually past the cooling plates to the outlet of the dosing screw. To achieve this, it is important that the same amount of product flows between the screw flights with each rotation of the shaft.
Agitator vessels & tumble hoppers
The advantage of using multiple screw shafts mounted together in one housing is that they can measure out these sluggishly flowing products. Product bridges above the screws are eliminated and large transport capacities can be achieved at relatively low rotation rates. By installing 2, 3, 4 or more spirals in a hopper, you get a very reliable system for emptying solids that have a high tendency to form bridges. By using conventional screw shafts, enormous feed torques can be achieved without damage to the screw shafts, in contrast to a shaftless screw bed. The screw flights can be made in various forms to guarantee a good match with the product. The system is highly flexible in use and can be produced in versions for large and small capacities.
- Screw feeder system is designed for the product
- High capacity can be achieved with relatively low rotation speed
- Hopper storage capacities from 10m3 to 100m3 (bigger on request)
- No wearing plates required, thanks to the free spanning of the screw shafts
- Screw shaft revolutions can be regulated independently
- Little or no maintenance required
Klinkenberg extraction screws can be supplied with ATEX certification. Zone 20 internally (Notified body TUV) and externally Zone 21/22 (Notified Lloyds)
Sludge from municipal waste plants; sludge cakes; paper sludge; meat and abattoir waste streams; industrial sludge etc.
Activated charcoal powder, nylon powder, PVC powder, polyamide powder, talcum powder, calcium carbonate, polymer powder, lime powder, artificial fertilizer, sodium sulphate, polyacetal powder, alum earth, borax, buthylphenol, chalk powder, fly ash, toner powder, filtering material, pigment powder, isophthalic acid, irganox powder, cinnamic acid, chalk powder, sodium sulphate, polyformaldehyde powder, pentaerythrite, urea, washing additives, Zeneb powder, aspirin powder, cheese powder, coffee powder, granulated sugar, tobacco powder, vanilla powder, starch, salt, sweetener etc.
Anthracite, caustic soda, chemical granules, Delrin granulate, DMT flakes, resin flakes, HPN chips, artificial resin granulate, plastic granulate (milled), sodium sulphate, nylon granulate, octylphenol, PA granulate, paper pulp, PE granulate, PET granulate, penicillin salt, polyaramide granulate, PVC granulate, sawdust, caramelised sugar, granulated sugar, spice mixture, rice, wheat/barley, tea, vitamin C granulate etc.