| 摘要 |
<p>#CMT# #/CMT# Fluidized bed apparatus: comprises a distribution base (10); a fluidization medium (11), which flows downwardly through the distribution base; a feeding arrangement, with which the particles (31) are supplied to a region above the distribution base, where a fluidized bed (30) of particles and the fluidization medium is formed above the distribution base; a first temperature sensor (41), which is arranged below the distribution base; a second temperature sensor, which is arranged above the distribution base; and an evaluation device. #CMT# : #/CMT# Fluidized bed apparatus: comprises a distribution base (10); a fluidization medium (11), which flows downwardly through the distribution base; a feeding arrangement, with which the particles (31) are supplied to a region above the distribution base, where a fluidized bed (30) of particles and the fluidization medium is formed above the distribution base; a first temperature sensor (41), which is arranged below the distribution base; a second temperature sensor, which is arranged above the distribution base directly on the distribution base or in the lowest region of a fluidized bed; and an evaluation device, which is connected with the two temperature sensors. The evaluation device provides a signal for process control depending on the difference of temperatures measured from the two temperature sensors. An independent claim is also included for operating the fluidized bed apparatus, comprising supplying the particles via the distribution base through which the fluidization medium flows downwardly so that the fluidized bed is formed, where temperatures below and directly above the distribution base are respectively measured, and the measured temperature values below and above the distribution base are compared with each other and action is taken on the process control depending on the time course of the comparative value. #CMT#USE : #/CMT# Used as a fluidized bed apparatus. #CMT#ADVANTAGE : #/CMT# The fluidized bed apparatus counteracts the occurrence of blockages. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The figure 1 shows schematic representation of the fluidized bed apparatus. 10 : Distribution base 11 : Fluidization medium 30 : Fluidized bed 31 : Particles 41 : First temperature sensor #CMT#INSTRUMENTATION AND TESTING : #/CMT# Preferred Components: Many temperature sensors are arranged above the distribution base in different surface regions (sections) of the distribution base. Many temperature sensors are connected with the evaluation device and allow a section dependent signal evaluation. The temperature sensors are arranged above the distribution base at a distance of less than 5 mm above the distribution base. The limiting values are stored in the evaluation device, which induce an active change in process control during their crossing.</p> |
