Flame-proof large brick on back cut of roasting furnace chamber and method of manufacturing the same

Abstract

The invention provides a roaster room back cup fire proof big brick, which is made of a dry material part and addition agents, wherein, the dry material part comprises: 32 to 37 weight portions of waste fire proof brick materials the grain diameter of which is 10-5mm, 22 to 26 weight portions of waste fire proof brick materials the grain diameter of which is 5-3mm, 8 to 12 weight portions of waste fire proof brick materials the grain diameter of which is less than 3mm and 28 to 33 weight portions of 180 head waste fire proof brick fine materials; the addition agents are water glass solution, sodium hexametahposphate, sodium fluosilicate and steel fibre; the invention adopts waste clay quality fire proof brick as main material to prepare the roaster room back cup fire proof big brick, is formed by direct moulding by adopting a vibration moulding mode during preparation, makes the fire proof big brick be a whole and do not easily have a dislocation even being impacted, basically does not need to be repaired, adopts waste materials as the main raw material, realizes resource recycling, changes waste into treasure, reduces environment pollution at the same time, reduces the labour intensity, and enhances the work efficiency.

Description

technical field [0001] The invention relates to a large refractory brick at the top of a roasting furnace chamber, and at the same time relates to a preparation method of the large refractory brick. Background technique [0002] Roasters are widely used in non-ferrous industries, such as carbon enterprises. During the production process, the temperature of the upper opening of the roasting furnace chamber is 250-1000°C, and the upper opening of the roasting furnace chamber used by enterprises is mostly made of special-shaped clay refractory bricks. However, in the course of practice, it is found that the upper opening of the roasting furnace chamber built with refractory bricks has the following defects: 1. It is necessary to use various types of refractory bricks to build bricks, and there is no gap between the refractory mud and refractory bricks used for building refractory bricks. To achieve co-sintering, therefore, bricks cannot form a solid and stable whole. During th...

AI Technical Summary

Problems solved by technology

However, in the course of practice, it is found that the upper opening of the roasting furnace chamber built with refractory bricks has the following defects: 1. It is necessary to use various types of refractory bricks to build bricks, and there is no gap between the refractory mud and refractory bricks used for building refractory bricks. To achieve co-sintering, therefore, bricks cannot form a solid and stable whole. During the production process, the charcoal blocks transported by the overhead crane will collide with the upper opening of the roasting furnace chamber, causing the upper opening of the roasting furnace chamber 2. When the refractory bricks on the top of the roasting furnace chamber are dislocated and loose, and the airtightness of the fire path is poor, if it is not repaired in time, it will inevitably affect the airtightness of the fire path. The adjustment of the temperature of the fire path in the next cycle will affect the roasting quality and qualified rate of the charcoal block, thus causing frequent maintenance of the upper opening of the roasting furnace chamber and increasing the maintenance cost, resulting in an increase in cost and increased labor intensity of workers

[0003] When the upper opening of the roasting furnace chamber is damaged due to collision, the refractory bricks cannot be used any longer, and the waste refractory bricks have to be discarded, which will cause environmental pollution, bring huge pressure to environmental protection, and occupy a large amount of land