Granulator for dry-method pulverizing process of dry-pressed ceramic tiles

Abstract

The invention discloses a granulator for a dry-method pulverizing process of dry-pressed ceramic tiles. The granulator comprises a granulation tower, cyclone dust collectors and a vibrated fluidized bed. The granulation tower is arranged above the vibrated fluidized bed. The cyclone dust collectors are arranged in pairs and are arranged on the outer side of the granulation tower in a central symmetry manner. A feeding port and a double-fluid spray gun are arranged in the middle of the top of the granulation tower, and a feeding dispersion circular blow pipe is arranged at the feeding port, so that dry powder is dispersed and rotates. A gas outlet is formed in the outer side of the center of the top of the granulation tower, and gas is tangentially discharged along the circumference, so that rotating airflow is formed in the tower and rotates in a direction opposite to that of the dry powder. The gas outlet of the granulation tower is connected with inlets of the cyclone dust collectors, gas outlets of the cyclone dust collectors are connected with a circulating fan, and powder outlets of the cyclone dust collectors are connected with a middle return port of the granulation tower. A necking is formed at the joint of the granulation tower and the vibrated fluidized bed to form an airflow acceleration area. According to the invention, the strength and sphericity of powder particles are improved, the pulverization rate is reduced, the fluidity is improved, and the production efficiency of a dry pressing link is improved.

Description

technical field [0001] The invention belongs to the technical field of ceramic brick production, and in particular relates to a granulator used in the dry-process powder-making process of dry-pressed ceramic bricks. Background technique [0002] The granulation process of the ceramic brick dry powder milling process is one of the key processes in the production of dry-pressed ceramic bricks by the dry powder milling process. or other aqueous solution) to make (0.25mm ~ 0.38mm) molding powder; after storage, the molding powder is sent to the press to press the green body of the ceramic tile. [0003] The key equipment for the preparation of pressed powder in the dry pressing process of ceramic tiles is the granulator, which requires the size of the particles produced by it to be 0.25mm to 0.38mm, and to have sufficient strength and sphericity. The current dry milling process generally uses two types of granulators: a, mechanical agitation high-speed granulator, b, suspension...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of poor strength (consistency) and sphericity, high pulverization rate and poor fluidity of the particles produced by the granulator in the prior art, the present invention provides a dry-pressed ceramic brick dry The granulator of the French powder process, the granulator can make the dry powder and the liquid more fully contact by strengthening the dispersion; through the dry powder circulation, reduce the amount of dry powder in the finished product; Improve its strength and sphericity

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