- Time:Jul 05, 2023
Lime shaft kiln is a common equipment used to produce lime, and the refractory materials used in it are mainly refractory bricks. The following are the general specifications and steps for lime shaft kiln refractory brick masonry:
1. Brick material selection: choose refractory bricks suitable for the working conditions and requirements of the lime shaft kiln. Commonly used refractory bricks include high alumina refractory bricks, silicate refractory bricks, etc. According to the temperature and erosion of different areas in the kiln, refractory bricks of corresponding materials are selected.
2. Construction scheme design: design a reasonable construction scheme according to the structural characteristics and dimensions of the lime shaft kiln. Including the consideration of the thickness of the brick wall, the way of brick arrangement, the width of brick joints, the way of fastening between bricks, etc.
3. Preparation before masonry: Clean up the debris and dirt in the shaft kiln to ensure that the masonry surface is clean. Check whether the structure of the kiln body is intact, and repair it if damaged.
4. Masonry mortar ratio: according to the ratio requirements provided by the brick manufacturer, prepare the mortar required for refractory brick masonry. According to the type of brick material and the requirements of use, choose the appropriate type of mortar and admixture.
5. Brick masonry: start to build refractory bricks according to the design plan. Start at the bottom and work your way up. Pay attention to maintaining verticality and levelness to ensure the stability of the brick wall.
6. Masonry gap treatment: During the masonry process, a gap of a certain width is left between bricks. After the masonry is completed, fill with mortar or refractory cement to make the surface of the brick wall smooth without obvious unevenness.
7. Brick wall curing and drying: After the masonry is completed, it needs to be cured and dried. Slow heating and cooling is usually done to avoid cracking of the brick wall due to temperature changes.
8. Quality inspection and maintenance: After the masonry is completed, quality inspection is carried out to ensure the integrity and stability of the brick wall. At the same time, the brick walls are regularly maintained and repaired, and any damaged or falling bricks are found to be replaced in time.
The above are general lime shaft kiln refractory brick masonry specifications and steps, which need to be adjusted according to specific conditions in actual operation. It is important to follow the requirements for the use of refractory bricks, rationally design the construction plan, and carry out proper maintenance and repairs to ensure the normal operation and service life of the lime shaft kiln.
