In modern industrial production, coke oven is the core equipment of coking process, and its stable operation is very important for many fields such as steel production. As the key fire-resistant material of coke oven, clay refractory brick for coke oven has become an important support to ensure the efficient and stable operation of coke oven with its excellent performance and wide application advantages. In this paper, the characteristics, advantages, quality control and application prospect of clay refractory bricks for coke ovens will be discussed in depth in order to provide a comprehensive and in-depth understanding for practitioners in related industries.

I. Product Overview

Clay refractory brick for coke oven is a kind of high-performance refractory material specially designed for coke oven. Its main component is clay mineral, which is fired at high temperature. This kind of refractory brick has the characteristics of low impurity content, tight dimensional tolerance, low heat storage capacity, high compressive strength, high temperature resistance and high mechanical strength. These characteristics enable it to maintain long-term stable operation in the harsh working environment of coke oven, effectively prolong the service life of coke oven and reduce the maintenance cost.

II. Physical and chemical indicators

Physical and chemical indexes of clay refractory bricks for coke oven are important standards to measure their properties. According to product specifications, clay refractory bricks for coke ovens are divided into JN-40 and JN-42 grades. JN-40 and JN-42 clay refractory bricks are excellent in key performance indexes such as refractoriness, apparent porosity, load softening temperature, etc., which can meet the use requirements of coke ovens under complex working conditions such as high temperature and high pressure. Especially JN-42 grade refractory bricks have higher Al₂O₃ content, lower apparent porosity and stronger thermal shock stability, which are suitable for key parts such as coal inlet of coke oven and can effectively resist the erosion and erosion of high-temperature pulverized coal.

III. Quality Control

Quality is the lifeline of products, especially for clay refractory bricks used in coke ovens. As a professional refractory manufacturer, Zibo Zhuoyue Refractory Co., Ltd. has established a perfect quality control system. The company is equipped with professional quality inspection personnel to conduct sampling inspection on all products and strictly control the quality of products. Unqualified products are not allowed to leave the factory, so as to ensure that each refractory brick can meet the customer's use requirements.

In terms of quality inspection, the company uses professional equipment to carry out chemical analysis and physical performance test on refractory bricks, covering key indicators such as apparent porosity, bulk density, compressive strength and load softening temperature. At the same time, the appearance of refractory bricks is strictly inspected, including dimensional tolerance, deformation, cracks, corner defects, melting holes and color, to ensure that the appearance quality of products meets the standards.

IV. Packaging and Transportation

In order to ensure that the firebrick is not damaged during transportation, Zibo Zhuoyue Refractory Co., Ltd. adopted a scientific and reasonable packaging method. Refractory bricks are packed in pallets, fixed by PET packing tape and covered with plastic film to prevent the erosion of rain and dust. The standard export pallet size is 1000×1000mm, and the loading weight of each pallet is 1.5-2.0 tons. In transportation, 20-foot containers can carry 24 tons and 40-foot containers can carry 28 tons, which can meet the transportation needs of different customers.

V. Application advantages

Clay refractory brick for coke oven has many advantages in practical application. First of all, its low impurity content can effectively reduce the volatilization and reaction of impurities in high temperature environment, reduce the pollution to the internal environment of coke oven, and also help to improve the production efficiency of coke oven. Secondly, the tight dimensional tolerance ensures the close fitting of refractory bricks in the masonry process, reduces the gaps and enhances the overall sealing of the coke oven, thus improving the thermal efficiency and service life of the coke oven.

In addition, the low heat storage capacity enables the refractory bricks to respond quickly when the temperature changes, reducing the heat loss and further improving the energy utilization efficiency of the coke oven. High compressive strength and high mechanical strength can effectively resist the mechanical stress in the high temperature and high pressure environment inside the coke oven, prevent the damage and deformation of refractory bricks, and ensure the structural stability of the coke oven.

VI. Conclusion

Clay refractory brick for coke oven is a key material in coke oven production, and its performance and quality are directly related to the operating efficiency and service life of coke oven. Zibo Zhuoyue Refractory Co., Ltd. relies on its rich production experience, strict quality control system and perfect after-sales service to provide customers with high-quality clay refractory bricks for coke ovens. In the future development, the company will continue to innovate and forge ahead, and strive to provide better products and services to customers around the world, and contribute to the sustainable development of the coke oven industry.