Measures to prolong the life of insulating fire brick

With the increasing frequency of use of refractory materials in various industries in recent years, companies have begun to tackle key technical problems and carefully control them. At present, the most difficult difficulty to overcome is the safety of the insulating fire brick, which is its service life. The following are the process management measures taken by our company to prolong the life of the insulating fire brick.

The following is a list of contents:

• Quality control and storage and transportation

• Take the right construction plan

• Precautions in the production process

Quality control and storage and transportation

First of all, when purchasing refractory bricks, strictly abide by the relevant requirements in the "Regulations for the Use of Refractories for Cement Rotary Kilns", and suppliers provide product quality inspection reports and certificates. Secondly, strictly enter the factory for inspection, and prevent substandard products from entering the factory. Appearance quality inspection is carried out according to the dimensional tolerance, edge damage, corner damage, cracks and pits, weld traces, and bulges of the insulating fire brick. If the appearance quality is qualified, the composition and performance quality inspection is also required. Two bricks are randomly selected from each batch of bricks entering the factory and sent to a company or department with testing qualifications for testing. Finally, when storing the insulating fire bricks, it is necessary to standardize the stacking, to achieve waterproof, moisture-proof, and ventilation.

Take the right construction plan

First of all, to ensure the quality of masonry, the service life of the insulating fire brick has a great relationship with the quality of the masonry of the insulating fire brick. From the production experience, the masonry quality is good, the insulating fire brick can be as thin as 40 mm without falling off, and under the condition of stable kiln conditions, the cylinder temperature can be kept below 330 ℃, which can still meet the normal production. However, if the quality of masonry is poor, bricks may be dropped as soon as the material is put in, or even during the drying process, resulting in process accidents, affecting production, and causing losses. Therefore, our company will select a professional construction team to carry out the masonry of insulating fire bricks, and at the same time strengthen the skill training and process supervision of the construction personnel, strengthen the process control, and ensure that the construction is carried out by our requirements.

Precautions in the production process

First of all, in the production process of insulating fire brick, the number of times opening and stopping the kiln should be reduced. The company will arrange for technicians to supervise the implementation. Secondly, during the heating process, according to the flame conditions of the kiln head, the brightness in the kiln, and the temperature of the smoke chamber, the kiln system should be pre-charged several times, the purpose is to achieve stable flame, and the temperature in the kiln should not be too high to damage the kiln bricks. The former magnesia-iron spinel brick is hung with a layer of kiln skin, and the kiln can operate normally after feeding. Among them, it is also necessary to pay attention to the early ventilation of the system. After ignition, the exhaust fan of the system is turned on. When the temperature of the smoke chamber reaches 500 ℃, the high-temperature fan is turned on. It is strictly forbidden to use the head exhaust fan to reverse the air to save diesel and increase the temperature in front of the kiln. The main purpose is to avoid the kiln the internal temperature is locally too high, causing the bursting of the insulating fire brick. Finally, it is necessary to ensure the smooth operation of the kiln. Ensuring the smooth operation of the kiln can reduce the damage caused by mechanical damage to the insulating fire brick. The rotary kiln cylinder will vibrate when it rotates, and the internal high temperature and high load will cause the cylinder to deform. The vibration and deformation of the cylinder will eventually produce tensile stress, shear stress, and extrusion stress acting on the insulating fire brick. Causes different degrees of damage to the insulating fire brick, so the smoother the kiln runs, the less adverse effects such as vibration and deformation will be, the less damage the insulating fire brick will be, and the longer its service life will be.

With the increasing industrial demand, the demand and requirements for insulating fire bricks are getting higher and higher. We must pay enough attention to this. If there is a problem, we must carefully analyze the cause of the damage and constantly sum up the experience to use and use it reasonably maintain. The company will also attach great importance to the selection and configuration of kiln bricks and the quality of masonry, and strengthen management to ensure its service life and long-term safe operation of the equipment. After reading the above content, if you are interested in insulating fire bricks, please visit our company's website https://www.yufengrefractory.com/ to check it out. We look forward to your arrival.