초록 ▼

An apparatus for treating the surfaces of solid particles has at least a first cylindrical treating chamber and a rotary shaft and a first rotor having two or more blades on its front face, contained in the first cylindrical treating chamber. A powder charging aperture for introducing the solid part

An apparatus for treating the surfaces of solid particles has at least a first cylindrical treating chamber and a rotary shaft and a first rotor having two or more blades on its front face, contained in the first cylindrical treating chamber. A powder charging aperture for introducing the solid particles into the first cylindrical treating chamber together with gas is provided at the center of the front wall of the first cylindrical treating chamber, opposed to the front face of the first rotor. A first powder discharging aperture for discharging the treated solid particles is provided at the center of the rear wall of the first cylindrical treating chamber, opposed to the rear face of the first rotor. The first rotor is connected with the rotary shaft and rotated by the rotation of the rotary shaft. The height H.sub.a of the blades, the gap L.sub.1a between the tip of each of the blades and the front wall, the largest diameter R.sub.1a of the first rotor and the gap L.sub.2a between the blades and the sidewall of the first cylindrical treating chamber satisfy the following conditions: EQU 0.1.ltoreq.L.sub.1a /H.sub.a .ltoreq.5.0, 50.times.10.sup.-3 .ltoreq.H.sub.a /R.sub.1a .ltoreq.400.times.10.sup.-3 and 1.0.times.10.sup.-3 .ltoreq.L.sub.2a /R.sub.1a .ltoreq.95.times.10.sup.-3.

대표청구항 ▼

[ What is claimed is:] [60.] A method for treating the surface of solid particles, in which a surface treating apparatus is used to adhere and/or fix onto surfaces of solid mother particles thermoplastic solid daughter particles smaller than the solid mother particles, thereby forming films derived

[ What is claimed is:] [60.] A method for treating the surface of solid particles, in which a surface treating apparatus is used to adhere and/or fix onto surfaces of solid mother particles thermoplastic solid daughter particles smaller than the solid mother particles, thereby forming films derived from the solid daughter particles on the surface of the solid mother particles, wherein the surface treating apparatus comprises at least:a first cylindrical treating chamber; anda rotary shaft and a first rotor having two or more blades on its front face, contained in the first cylindrical treating chamber;wherein a height H.sub.a of the blades, a gap L.sub.1a between a tip of each the blades and a front wall, a largest diameter R.sub.1a of the first rotor and a gap L.sub.2a between the blades and a sidewall of the first cylindrical treating chamber satisfy the following conditions: EQU 0.1.ltoreq.L.sub.1a /H.sub.a .ltoreq.5.0, 50.times.10.sup.-3 .ltoreq.H.sub.a /R.sub.1a .ltoreq.400.times.10.sup.-3 and 1.0.times.10.sup.-3 .ltoreq.L.sub.2a /R.sub.1a .ltoreq.95.times.10.sup.-3 ;rotating the first rotor by driving the rotary shaft;introducing the solid mother particles and the solid daughter particles together with gas into the first cylindrical treating chamber through a powder charging aperture provided at the center of a front wall of the first cylindrical treating chamber;applying mechanical impact force and heat to the solid mother particles and the solid daughter particles while retaining the solid mother particles and the solid daughter particles in the first cylindrical treating chamber, thereby crushing the solid daughter particles and forming films derived therefrom on the surfaces of the solid mother particles; anddischarging the treated solid matrix particles from a powder discharging aperture provided at the center of a first rear wall of the first cylindrical treating chamber opposed to the rear face of the first rotor.