Pouring mold for process nozzle protective material and pouring method thereof

Abstract

The invention discloses a pouring mold for process nozzle protective material and a pouring method thereof. The mold comprises a cylindrical mold case composed of two or more arc-shaped plates; the round end ports of the two ends of the cylindrical mold case are respectively provided with a front baffle plate and a rear baffle plate; and the cylindrical mold case is provided with a pouring opening and a plurality of regulating bolts. The mold of the invention has certain strength and can avoid deforming in a pouring process. Meanwhile, the mold of the invention can apply certain pressure onto the pouring material so as to improve the compactness of the pouring material.

Description

technical field [0001] The invention relates to a pouring mold, in particular to a pouring mold used for process burner protection materials and a pouring method thereof. Background technique [0002] Whether it is a single burner or multi-burner coal-water slurry pressurized gasification technology, the coal-water slurry and pure oxygen are injected into the combustion chamber of the gasifier in parallel through the process burners for reaction. The internal temperature of the gasifier is about 1300-1500°C, the medium is a mixture of high-temperature slag and gas, and the main gas component is H 2 , CO, CO 2 、SH 2 , SO 2 etc. Due to the influence of harsh working conditions such as high-temperature heat radiation, slag erosion, and high-temperature gas corrosion in the gasifier, cracks in the water chamber of the oxygen nozzle outside the burner, corrosion and cracking of the burner coil and the outer oxygen pipe, etc. affect the operating cycle. [0003] By protecting...

AI Technical Summary

Problems solved by technology

[0005]1. Difficult pouring, repeated adjustments, repeated pouring, grinding and forming, difficult processing, time-consuming and laborious;

[0006]2. After the material is molded, the dimensional error is large, the cylindricity and concentricity are poor, and it is not well matched with the burner chamber of the gasifier, and it is easy to be damaged when the burner is installed In the pouring layer, the gas backflow in the burner chamber accelerates the damage of the burner during operation;

[0007]3. The thickness of pouring is uneven, and the inside of the material is evacuated and ventilated, which fails to achieve the purpose of protecting the burner

[0008]4. The surface finish is poor, the front and rear end faces are not formed well, and they are not resistant to erosion. After a period of use, they are sintered with ash and slag. Tube broke

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