| 摘要 |
The caldron of the invention comprises a cylindrical caldron main body having a raw material charge port for charging a water-added raw material to be boiled and a discharge port for discharging a boiled raw material, both ports being disposed near to both the closed ends of the caldron main body and at least one steam injection pipe installed in the caldron main body and having a plurality of injection ports for injecting steam-and preferably oxygen-free streams for boiling the raw material, wherein the injecting direction of the steam injected from the injection ports is inclined so that the steam is supplied in the circumferential direction of the caldron main body. As a result, the caldron of the invention can prevent the water-added raw material to be boiled such as bean juice and the like from being unevenly boiled, eliminate the adverse affect caused by the steam remaining in the caldron main body, lower the pressure in the caldron main body, properly control the raw material fed in the caldron main body, uniformly and sufficiently transmit the heat of the steam to the raw material so that it is evenly and sufficiently heated, whereby the boiled raw material such as bean juice and the like is manufactured, from which soybean milk of high quality preferably containing no oxygen mixed therewith and dissolved therein can be manufactured. |
