Rotary dosing unit

During the time necessary to achieve exact thermal equilibrium in the calorimeter (approximately 1 h), which is the prerequisite for the start of a strictly isothermal measurement, a thermally instable substance in the chamber of the rotary dosing unit is changed to an unknown degree. A thermally instable substance must therefore be brought to the temperature of the reaction in as short a time as possible and then dosed as quickly as possible. It is advisable to dose thermally instable solids in the form of slurry using a dosing rmit described as follows. 

Fig. 3.3 Rotary dosing unit within measuring kettle for instantaneous mixing of a mass (liquid, granule material) at the exact temperature of the batch...

An impression of a shoe sole production unit with a rotary round table machine, mounted mold carriers, release-agent spraying unit, and the dosing unit for the PUR reaction mixture, is shown in Figure 1.131. 

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