Utilize hot flue gas that powder body material is carried out the method that flash baking is broken upTechnical field:
The present invention relates to powder dispersion technology field, powder drying technology field, be specifically related to a kind ofly utilize hot flue gas that powder body material is carried out the method that flash baking is broken up.
Background technology:
Because the particle of superfine powder is very tiny, surface energy is big, therefore, the caking of reuniting very easily takes place in powder granule, causes very big difficulty for production and use.So, before producing and using, must carry out the homogeneous dispersion treatment to superfine powder.At present, general decentralized approach is to adopt mechanical agitation, but this method efficient is low, the power consumption big, and dispersion effect is poor, easily sneaks into irony in dispersion process, also will carry out drying to powder in addition and handle the technological process complexity.
Summary of the invention:
Technical problem to be solved by this invention is to overcome above-mentioned defective, provides a kind of and utilizes hot flue gas that powder body material is carried out the method that flash baking is broken up, and this method can be carried out high-efficiency continuous dispersion treatment to superfine powdery material, and can carry out drying simultaneously and handle.
Technical problem to be solved by this invention realizes by the following technical solutions:
Utilize hot flue gas that powder body material is carried out the method that flash baking is broken up, it is characterized in that, this method comprises the steps:
A. powder material being joined oven dry continuously from feeding mouth breaks up in the device;
B. when adding powder material, in breaing up device, oven dry is blown into hot flue gas by the thermal chimney road from four different directions, utilize thermal current to make powder material become fluidization, high-speed motion in device is broken up in oven dry, the powder material of reuniting is together broken up in collision mutually between the powder granule, in the process that powder material is broken up, carry out exchange heat between hot flue gas and the material particles, take away the moisture of powder material, thereby be dried;
C. the powder material after oven dry is broken up screens qualified powder granule again by the grading wheel sizing screening;
D. after the powder granule that sizing screening is qualified is discharged from discharging opening, handle back output through after-treatment device again.
Described oven dry is broken up device and is provided with feeding mouth and hot smoke inlet, and is connected with grading wheel.
Temperature before described hot flue gas feeds is controlled in 140 ℃～160 ℃ scopes.
Compared with prior art, the present invention adopts hot flue gas dispersion, dry technology, and powder is continued dispersion, the dry processing, and the powder after the processing presents extraordinary flowability, and dispersion effect is good, the drying efficiency height; And it is low to consume energy, simple in structure, easy to operate.
The specific embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with specific embodiment, further set forth the present invention.
Utilize hot flue gas that powder body material is carried out the method that flash baking is broken up: powder material to be joined oven dry continuously from feeding mouth break up in the device; When adding powder material, in breaing up device, oven dry is blown into hot flue gas by the thermal chimney road from four different directions, utilize thermal current to make powder material become fluidization, high-speed motion in device is broken up in oven dry, the powder material of reuniting is together broken up in collision mutually between the powder granule, in the process that powder material is broken up, carry out exchange heat between hot flue gas and the material particles, take away the moisture of powder material, thereby be dried; Powder material after oven dry is broken up by the grading wheel sizing screening, screens qualified powder granule again; After the powder granule that sizing screening is qualified is discharged from discharging opening, handle back output through after-treatment device again.
Oven dry is broken up device and is provided with feeding mouth and hot smoke inlet, and is connected with grading wheel.
Temperature before hot flue gas feeds is controlled in 140 ℃～160 ℃ scopes.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.