Detailed description of the production process of ceramic fiber blanket:
Stone clay and kaolin are crushed by a pulverizer into the required size for manufacturing ceramic fibers; or mixed with different percentages of industrial aluminum powder, industrial silica powder, and zircon sand powder to make four different types of products.
When making different products, the raw materials prepared above are uniformly stirred through the feeding cart and mixer, and then transported and distributed to the resistance furnace.
The resistance furnace uses molybdenum electrodes as a source of thermal energy. Conductive ions generated by molten raw materials conduct energy.
The electrical resistance generated by the molten raw material is a factor that generates heat, and the raw material continues to be melted uniformly.
The resistance furnace is cooled by water. The molten liquid flows out through the molybdenum orifice installed with nitrogen protection and flows to the spinning roller on the spinning machine. Through centrifugal force, the molten magma material is converted into fibers, and the grease is used in the fiber forming process.
The fibers are blown out from the spinning machine, guided by negative pressure, and evenly distributed on the mesh belt of the cotton collector. The fibers enter the needle punch through the conveyor belt, and the needle punch converts the ceramic fiber cotton into a ceramic fiber blanket as required. .
Needle-punched blanket cotton embryo passes through the conveyor belt, through the heat treatment furnace to volatilize the grease, make it shape, crystallize the fiber, and increase its use temperature. After vertical and horizontal cutting, rolling, quality inspection and packaging, the finished product is sent to the warehouse for shipment.
The process is pollution-free. The production raw materials are mainly cooked coke gemstones or a mixture of quartz sand, alumina powder and zircon sand. Utilizing the principle of electrical energy resistance to generate current and smelt it into a liquid, there is no chemical reaction or elementary pollution in the production process. Part of the dust and waste generated during the period are recovered and removed by the water mill dust collector. This process has been produced throughout. The oranges are operated indoors and most of them are controlled semi-automatically. The operators only need to wear simple protective measures, such as gloves, masks, and glasses. It can work normally and can be sent to the human body without any side effects.
The ceramic fiber blanket adopts continuous melting and continuous spinning process without lining water wall resistance furnace to form fiber, and double-sided needle punching molding; the fiber is long, thick and uniform in diameter, high tensile strength, strong resistance to airflow erosion, and good thermal stability. Through the heat treatment of the fully-automated blanket heating furnace, the ceramic fiber products can be changed in advance, and the high temperature shrinkage of the products during use can be reduced. At the same time, the use of high-quality raw materials and special purification and mixing production processes can effectively reduce the products. The impurity content in the product improves the thermal stability of the product.
The main performance characteristics of ceramic fiber blanket are summarized as follows:
Small volume density; low heat capacity (heat storage); low thermal conductivity; excellent thermal shock and mechanical vibration resistance; good sound insulation performance; easy construction and maintenance
Advantages can be divided into five categories:
(1) Excellent environmental performance. It is produced by spun silk fiber with a fiber diameter of 5 microns, a fiber length of 200 mm, and high tensile strength. It is not easy to generate dust during construction and maintenance, and the generated dust does not cause occupational hazards and does not affect human health.
(2) Excellent tensile strength. The product adopts double-sided needle punching and has a tensile strength of 40,000 Pa at a bulk density of 128kg/m3.
(3) Excellent thermal insulation performance. The classification temperature of this product is 1260℃, the safe use temperature is below 1000℃, the thermal conductivity is small, and the thermal conductivity is only 0.085 under the average 400℃, which effectively improves the product’s thermal insulation performance.
(4) Excellent chemical stability, thermal stability, thermal shock resistance and sound absorption, easy construction and maintenance.
