Ignition method and apparatus of product line for sintering porcelain granule

Abstract

The present invention relates to an ignition method and an ignition device, which are applied to the baking porcelain grain production line. The ignition method: the temperature of the ignition device is increased to pre-determined temperature, generally 800 to 1350 DEG C, a baking box that is fully provided with the baking raw materials is close to the ignition device at high temperature to reach the closed state, and then to be preheated; the baking box is ventilated with air or other combustion-assistant gas to assist the combustion, so that the surface of the raw materials can be combusted adequately; the temperature in the ignition device is introduced downwards by the guiding air so as to increase the thickness of the ignition layer; the air introduction is stopped after the ignition, and the ignited baking box is moved to a next position, and simultaneously the next baking box that is fully provided with the baked raw materials is moved to the ignition position. With the present invention, the ignition efficiency at the surface of the baking box is high, thereby greatly reducing the heat waste and shortening the ignition time; moreover, the porcelain grain that is arranged on the surface of the baking box is combusted adequately without breaking or dust; the particle is complete, thus improving the rate of the finished product of the production line. The ignition device has simple structure, not only has low production cost, but also greatly reduces the running operation compared with the traditional ignition system.

Description

technical field [0001] The invention relates to an ignition method and device in a box-type sintering process, in particular to an ignition method and device for a sintered ceramsite production line. Background technique [0002] The sintering process is widely used in many industrial fields. For example, in metallurgy, building materials and environmental protection industries, iron powder or metal ore raw materials, fly ash, clay and shale are sintered at a certain temperature to make pellets with required strength. products or sintered products. The traditional sintering ignition method is to use natural gas, fuel oil or coal powder to ignite. The flame has a certain pressure and destructiveness, and the surface layer of the raw material will be destroyed when ignited. The inventor of this application submitted a Chinese invention patent application with the application number 200610002094.1 on January 25, 2006, entitled "Method and device for sintering ceramsite with fl...

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Problems solved by technology

The inventor of this application submitted a Chinese invention patent application with the application number 200610002094.1 on January 25, 2006, entitled "Method and device for sintering ceramsite with fly ash", which discloses a sintered fly ash production line of ceramsite, but the ignition device in it is not discussed in detail

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