Continuous prilling machine applied to ceramic powder and prilling technology thereof

Abstract

The invention relates to a continuous prilling machine applied to ceramic powder and a prilling technology thereof. The continuous prilling machine comprises a prilling tank, and the prilling tank is installed on an adjustable base; a nucleating chamber is formed in the upper portion of the prilling tank, a stirring shaft is arranged in the nucleating chamber, a plurality of sets of stirring teeth are arranged on the stirring shaft in the axial direction of the stirring shaft, atomizing nozzles are further arranged on the stirring shaft, and the atomizing nozzles and the stirring teeth are alternately arranged in the axial direction of the stirring shaft; a water delivering pipe is connected to the atomizing nozzles, and a water atomizing controlling valve and an anti-blocking device are arranged on the water delivering pipe. The continuous prilling machine further comprises a continuous feeding device jointed with a feeding opening of the prilling tank; a prilling chamber is formed in the lower portion of the prilling tank, a rotating device is arranged in the prilling chamber, a rotating disc is arranged on the rotating device, and a discharging opening is formed in a tank body of the prilling tank; a scraping plate is installed on the inner side wall of the prilling tank, and the rotating disc is located between the scraping plate and the tank body of the prilling tank. By means of the continuous prilling machine, continuous prilling can be achieved, and efficiency is high; the moisture content of particles is controllable, and control accuracy is high; energy consumption is low, the structure is compact, and cost is low.

Description

technical field [0001] The invention relates to a continuous granulator applied to ceramic powder and a granulation process thereof. Background technique [0002] In the current ceramic industry, due to the problem of sufficient dispersion of real particles and the molding compression ratio of false particles in dry granulation powder making technology, it is difficult for the particle size distribution of powder prepared by dry granulation to reach that of a brick press. Billet particle gradation (20-80 mesh) is required, and the moisture content is difficult to control. Therefore, the ceramic industry basically continues to use the ball milling-spray wet granulation technology, but the wet granulation technology has problems such as high energy consumption, high cost, and large pollution, which has seriously deviated from the energy-saving and consumption-reduction policy advocated by the state; Some disc granulators belong to intermittent granulation, and there are a sma...

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Problems solved by technology

[0002] In the current ceramic industry, due to the problem of sufficient dispersion of real particles and the molding compression ratio of false particles in dry granulation powder making technology, it is difficult for the particle size distribution of powder prepared by dry granulation to reach that of a brick press. Billet particle gradation (20-80 mesh) requirements, and the moisture content is difficult to control

Therefore, the ceramic industry basically continues to use the ball milling-spray wet granulation technology, but the wet granulation technology has problems such as high energy consumption, high cost, and large pollution, which has seriously deviated from the energy-saving and consumption-reduction policy advocated by the state; Some disc granulators belong to intermittent granulation, and there are a small amount of applications in production, but the process control of intermittent granulation is difficult, and intermittent production cannot greatly increase the output.

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