| 摘要 |
<p>The problems that arise during pneumatic transport of atomized slip are on the one hand that of preventing the air stream from tending to humidify or to dry the atomized product, and on the other hand that of limiting the velocity and the velocity gradient of the solid, relative to the pipe axis, to guarantee its integrity. The solution to the problem of maintaining the humidity of the solid consists of thermal preconditioning of the atomized slip, such as to attain the inlet air condition and maintain constant steam content. At the same time, it is possible, by means of temperature control, to maintain the condition of saturated air as far as the outlet. Therefore, controlling the temperature ensures that the change in steam content in the air between inlet and outlet of the pneumatic conveyor is zero and that the air always remains saturated.</p> |
