- Time:Jul 12, 2023
The rotary kiln is an important piece of equipment used to produce cement, lime and other mineral materials, and refractory bricks play a key role in the lining of the rotary kiln. The following are the general requirements for refractory brick replacement of rotary kiln:
1. Selection of brick types: choose refractory brick types suitable for the working conditions and production process of the rotary kiln. Common types of refractory bricks include high alumina bricks, magnesia bricks, silicon carbide bricks, etc., and brick types are selected according to specific applications.
2. Quality control: ensure that the selected refractory bricks meet the quality requirements of national standards or industry norms, and have sufficient temperature resistance, corrosion resistance and mechanical strength.
3. Masonry method: use a professional construction team to replace the refractory bricks. According to the design requirements, carry out brick shape design and layout to ensure that the gaps between bricks are even and appropriate.
4. Masonry sequence: replace bricks according to the design requirements and construction plan. Usually, it will be carried out in stages, and the operation will continue after replacing some bricks to ensure the continuity of production.
5. Cleaning work: Before replacing the refractory bricks, clean up the original refractory bricks thoroughly. Residue, ash and impurities are removed to ensure a tight bond between the new brick and the foundation brick.
6. Quality control of masonry: construction shall be carried out in strict accordance with the design scheme and specification requirements to ensure that the replaced refractory bricks meet geometric parameters such as size requirements, levelness and verticality.
7. Curing and drying: The replaced refractory bricks need to go through a proper curing and drying process. According to the specific conditions, take appropriate methods and time to ensure the stability of the brick body.
8. Construction safety: During the replacement of refractory bricks, pay attention to construction safety. Provide necessary personal protective equipment to prevent dust, smoke and high temperature from harming construction workers.
The replacement of refractory bricks plays a vital role in the normal operation and life of the rotary kiln. Following the above requirements can ensure that the replaced refractory bricks meet the process requirements and have sufficient durability and stability, thereby prolonging the service life of the rotary kiln and ensuring the continuity and stability of production. It is recommended to consult professional engineers or refractory suppliers before replacing refractory bricks to obtain replacement requirements and plans for specific rotary kilns.
