The fabrication of a furnace-lined ceramic fireproof module usually includes the following steps:
1. Design and drawing: According to the size and design requirements of the furnace, draw the construction drawings of the ceramic fireproof module.
2. Material preparation: According to the design requirements, prepare the corresponding refractory materials, such as ceramic fiber modules, refractory bricks, etc.
3. Cleaning in the furnace: Before construction, clean up the debris in the furnace to ensure that the construction surface is clean.
4. Measurement and pay-off: According to the construction drawings, the line is laid out on the wall of the furnace, and the installation position and size of the module are marked.
5. Install the deflector: Before the burner masonry, the deflector is prefabricated according to the design requirements and installed in the lower part of the burner.
6. Bottom castable construction: After the installation of the deflector is completed, the construction of the bottom castable is carried out.
7. Masonry refractory bricks: Starting from the bottom, build refractory bricks layer by layer, pay attention to control the elevation and flatness of the masonry to ensure that it meets the design requirements.
8. Pouring the wall after casting: After the masonry is built at a certain height, the wall is poured after the castable, and the deflector is installed.
9. Air channel masonry: masonry of the air channel from the bottom, laying the bottom bricks, and then masonry the refractory bricks of the air channel wall.
10. Masonry at the burner site: Set up a dry masonry layer at the burner site, reserve expansion joints as required, and fill the pad with refractory fiber felt and oil paper as a sliding layer.
11. Expansion joint reservation: In the process of refractory brick masonry, the expansion joint is reserved according to the design requirements to ensure the thermal expansion performance of the masonry.
12. Castable pouring: In the parts that need castable, such as burners and their surroundings, the pouring of castable is carried out, and the expansion joint is reserved.
13. Inspection and acceptance: After the construction is completed, the furnace lining is inspected to ensure that the construction quality meets the design requirements.
When making a furnace lined with ceramic fireproof modules, the following points need to be noted:
The quality and size of the refractory material should meet the design requirements, and the special-shaped bricks need to be "seated".
During the masonry process, the elevation, flatness and radius dimensions of the masonry should be checked and adjusted at any time.
The reserved position and size of the expansion joint should be uniform and appropriate, and meet the design and construction requirements.
During the pouring process of castable, the vibrator should be avoided from being close to the airway wall, so as to avoid the compression deformation of the coal/air wall.
Refractory bricks should be handled with care during transportation and movement to avoid hidden dangers such as defects, cracks, and damage in collisions.
Through the above steps, the furnace lining ceramic fireproof module can be fabricated to meet the design requirements to ensure the safe operation and service life of the furnace.