Inspection of Distortion of Refractory Products
Refractory products are a class of materials that are resistant to heat, corrosion and mechanical wear, including ceramics, bricks, coatings and ramming mixes, which are widely used in high-temperature equipment such as metallurgical furnaces, thermal equipment, and other high-temperature reaction vessels. As the body of high temperature equipment, the distortion of refractory products will seriously affect the normal operation and service life of the equipment. Therefore, the inspection and judgment of the distortion of refractory products is a key task for production and operation personnel. This article will discuss the inspection methods, analysis and judgement of the distortion of refractory products from the following aspects.
1. Methods for inspecting distortion of refractory products
1.1 Visual inspection method
The visual inspection method is a simple, fast and intuitive inspection method for the distortion of refractory products. The inspector should observe the surface of refractory products to check for any deformations such as chipping, cracking and sagging. Additionally, the inspector should also measure the sizes and angles of the refractory products to check if they have any deviation from their original design.
1.2 Coordinate measurement
The coordinate measurement method is through the measured data of the coordinates, angles, shapes and positions of the refractory products before and after installation, the deformation of the refractory products can be accurately determined.
1.3 Laser measuring method
The laser measuring method is a method that uses the laser scanning principle to measure the surface shape of the refractory products. The surface of the refractory products is scanned by a laser scan head. The scanned data is then sent to a computer for analysis to determine the size, shape and deformation of the refractory products.
1.4 Digital X-ray photography
The digital X-ray photography method uses X-ray to detect the deformation of the refractory products. By acquiring the X-ray images at different angles, the deformation of the refractory products can be accurately determined.
2. Analysis and judgement of the distortion of refractory products
After the inspection of the distortion of refractory products, it is necessary to analyse and judge the results of the inspection. The data of the inspection results should be analysed to determine if there is any displacement, cracks or other irregularities in the refractory products. If any abnormality is found, the relevant personnel should take corrective measures to eliminate the abnormality.
In summary, it is necessary to regularly inspect the distortion of refractory products to ensure their safety in use. The selection and application of inspection methods should be based on the performance and structure of refractory products. The inspectors should be trained to have a certain understanding of the inspection theory and method. In addition, the inspectors should be familiar with the relevant specifications and standards for refractory products, and develop a test plan before each inspection, so as to ensure the accuracy of the inspection results.
