Repair and maintenance methods of kiln castables

一. Maintenance method of kiln castable

Kiln castable is a high temperature refractory material used for kiln lining and bottom cladding. Due to the harsh working environment, problems such as damage, cracking, and falling off will occur after long-term use, and repairs are required. The following is a detailed introduction to the maintenance of kiln castables:

1. Preparation before maintenance

Before maintenance, the following preparations need to be done:

(1) Shutdown inspection: Stop the operation of the kiln, conduct a comprehensive inspection of the kiln, and confirm the parts that need to be repaired, as well as the maintenance materials and tools.

(2) Cleaning the surface: cleaning the surface of the kiln to remove surface debris and residues to ensure that repair materials can adhere firmly.

(3) Prepare maintenance materials: select appropriate maintenance materials according to the actual situation, such as castables, repair mortar, etc., and do a good job of mixing and stirring.

2. Maintenance steps

(1) Determine the scope of maintenance: determine the scope and degree of maintenance according to the actual situation, and judge whether it is necessary to remove the original castable and bottom covering layer.

(2) Apply spacer material: apply spacer material around the kiln repair area to prevent the repair material from flowing out, and at the same time ensure that the repaired surface is smooth and flat.

(3) Pouring or filling: select the appropriate maintenance method according to the needs, such as pouring, filling, etc. During the maintenance process, attention should be paid to the compactness and thickness of the pouring material to ensure that the surface is smooth and firm after maintenance.

(4) Confirm the curing time: Confirm the curing time according to the type and application of the castable, and keep the environment stable during the curing period to avoid cracks and cracks caused by excessive temperature differences.

3. Post-maintenance treatment

After the repair is completed, the following processing is required:

(1) Protective measures: Before the castable is fully cured, it should be provided with appropriate protective measures to avoid damage from external factors.

(2) Inspection and acceptance: After the castable is completely solidified, restart the trial run, and inspect and accept the repaired parts to ensure that the repair effect meets the requirements.

In short, the maintenance of kiln castables is a complicated task, which needs to be carried out in strict accordance with the operating specifications to ensure that the maintenance effect reaches the expected goal. In actual operation, it is necessary to pay attention to safety, quality and efficiency, so as to prolong the service life of equipment and improve production efficiency.

二. Maintenance method of kiln castable

Kiln castable is a high temperature refractory material commonly used to protect and line kilns. In order to ensure the normal operation of the kiln and prolong its life, regular care and maintenance are required. The following is a detailed introduction to the maintenance of kiln castables:

1. Clean the furnace surface

Regularly clean the kiln surface to remove dust, oil and other debris for better inspection and maintenance of kiln castables.

2. Regularly check the pouring layer

Regularly check the condition of the kiln pouring layer, find any damage and cracks, and repair them in time.

3. Maintain temperature stability

The kiln should maintain a stable temperature during use to avoid damage to the pouring layer of the kiln due to excessive temperature changes. In addition, attention needs to be paid to the cooling and heating rate of the kiln to avoid excessive temperature changes.

4. Avoid mechanical damage

Care should be taken when handling materials inside the kiln to avoid mechanical damage to the cast layer of the kiln.

5. Pay attention to chemical corrosion

The kiln may be exposed to some chemical substances during the production process, and it is necessary to pay attention to the chemical corrosion effect of these substances on the casting layer of the kiln.

6. Regularly remove residues

Regularly clean the residues inside and outside the kiln to avoid dust, oil and other substances from accumulating on the surface of the kiln, which will affect its normal operation and life.

7. Maintain proper humidity

Kiln castables need to maintain proper humidity to avoid drying out and cracking. Therefore, it is necessary to add water properly during maintenance.

In short, the maintenance of kiln castables is a comprehensive work that needs to be considered and implemented from many aspects. Through regular inspection, cleaning, repair and maintenance, the service life of the kiln can be extended and the production efficiency can be improved.