Mixer head for plastics material components

Details Mixer head for plastics material components Mixer head for plastics material components

1985-08-21

1987-08-25

Nerbun, Peter

Agitating

Jet or spray impinging free-falling stream

222135, 222318, B01F 1502

Patent

active

046889442

ABSTRACT:
In the case of a mixer head for reactive mixing of two or more plastics material components (A,B) in a mixing chamber (6), the mixture components are fed under the pressure simultaneously and conjointly into the mixing chamber (6) of the mixer head via a dosing valve (12, 14) in each case during a delivery stage. During a recirculation stage, the plastics material components are pumped around in a circulatory flow flowing through the dosing valve and through a recirculating valve (13, 15). To assure that even small delivery volumes per unit of time may be discharged evenly, the dosing valve (12, 14) and the recirculation valve (13, 15) are constructed as pressure valves and connected in series one behind the other, in such a manner that only the dosing valve or the recirculation valve is switched to the throughflow condition.

REFERENCES:
patent: 3216622 (1965-11-01), Drostholm
patent: 3386623 (1968-06-01), Berrill et al.
patent: 3773300 (1973-11-01), Hauser
patent: 4427298 (1984-01-01), Fahy

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