초록 ▼

A rotation driving system drives unitedly and rotatably sprinkle rotors, which the disk sprinkle rotors having plural partitive members extending in predetermined distances in a radial direction to the rotating axis are arranged in multistage state with a predetermined distance in a longitudinal dir

A rotation driving system drives unitedly and rotatably sprinkle rotors, which the disk sprinkle rotors having plural partitive members extending in predetermined distances in a radial direction to the rotating axis are arranged in multistage state with a predetermined distance in a longitudinal direction. In the aforementioned state, by supplying the catalyst to the center of the sprinkle rotor, the catalyst is fed into a reaction tank while releasing in a radial direction of the sprinkle rotor. When the catalyst is fed, a rotation frequency of the sprinkle rotor is defined to be a speed constituent in a radial direction of over zero when the catalyst settles down and to be periodically changed between a maximum rotation frequency and a minimum rotation frequency. And further, a diameter of each sprinkle rotor being defined as measure to cause a position where the catalyst, released from the lower sprinkle rotor rotating in the maximum rotation frequency Nmax, settles down and a position where the catalyst, released from the upper sprinkle rotor rotating in the minimum rotation frequency Nmin, settles down to be nearly equal to one another. Therefore, the catalyst is fed in a uniformly scattering state by rolling in the radial direction after settling down and the position where the catalyst settles down in the radial direction is periodically changed, whereby the catalyst can be uniformly fed in the radial direction.

대표청구항 ▼

A method of feeding a catalyst inside a reaction tank by sprinkling with the catalyst from a catalyst releasing device while rotating a sprinkle rotor of the catalyst releasing device hung inside the reaction tank, comprising the steps of: defining and maintaining a height from the fed catalyst surf

A method of feeding a catalyst inside a reaction tank by sprinkling with the catalyst from a catalyst releasing device while rotating a sprinkle rotor of the catalyst releasing device hung inside the reaction tank, comprising the steps of: defining and maintaining a height from the fed catalyst surface to the catalyst releasing device in the reaction tank selecting a rotation frequency of the catalyst releasing device so that the catalyst which lands onto the fed catalyst surface has a speed constituent Ux>0 in a radial direction of the reaction tank when the catalyst is released from the catalyst releasing device at an initial speed; and periodically changing the rotation frequency of the catalyst releasing device to maintain a uniform fed catalyst surface while feeding the catalyst into the reaction tank.