Liu Zhiquan, deputy director of the Department of Science and Technology Standards of the Ministry of Environmental Protection, said recently that the Ministry of Environmental Protection will work out the nitrogen oxide emission standards for the cement industry. This work will be officially launched next month. Liu Zhiquan made the above statement at the China International Cement Summit. He said that cement is the second largest nitrogen oxide emission industry after the power industry and will face severe energy-saving and emission reduction tasks. According to Liu Zhiquan, during the 12th Five-Year Plan period, the Ministry of Environmental Protection will make plans for denitrification, technological advancement, and adjustment of the industrial structure of the cement industry. The Twelfth Five-Year Plan for the cement industry released earlier has already set a target of a 10% drop in nitrogen oxide emissions. At present, there are nearly 4,000 cement companies in China, and the nitrogen oxide emissions of the new dry-process cement kiln are generally around 800 mg/standard cubic meter, while the emissions from foreign cement companies such as the European Union are generally at 500 mg/standard cubic meter. Compared with developed countries, China still has a big gap. Overall, the task of reducing nitrogen oxides emissions in the cement industry is arduous. Because the emission standards involve the cost of production of cement companies, they are highly concerned about the industry. A cement company executive attending the meeting said that the nitrogen oxide emissions from the cement industry increased from 800 mg/standard cubic meter to 500 mg/standard cubic meter, which would increase the company's cement cost per ton by about 5 yuan, and increase it to 400 mg/ton. Standard cubic meters, will increase the cost per ton of cement 15 yuan to 20 yuan. Prior to this, Vice Minister of Environmental Protection Liejun Zhang clearly stated during the inspection of the Conch Group that the nitrogen oxide emission standards of the cement industry under consideration by the Ministry of Environmental Protection will be very strict. Oxide powder for thermal spray refers to a type of powder material that is used in thermal spray processes. Thermal spray is a coating technique where a material in powder form is heated and propelled onto a substrate, forming a coating. Oxide Ceramics Powder,Pure Aluminum Oxide Powder,Chromium Oxide Ceramics Powder,Yttria Stabilized Zirconia Powder Luoyang Golden Egret Geotools Co., Ltd , https://www.lygoldentool.com
Oxide powders are commonly used in thermal spray applications due to their high melting points, excellent wear resistance, and thermal insulation properties. They can be used to create protective coatings on various surfaces, such as metals, ceramics, and plastics.
Some common types of oxide powders used in thermal spray include:
1. Aluminum oxide (Al2O3): This oxide powder is widely used for its high hardness, wear resistance, and thermal insulation properties. It is commonly used for coating applications in industries such as aerospace, automotive, and electronics.
2. Zirconium oxide (ZrO2): Zirconium oxide powder is known for its high melting point and excellent thermal barrier properties. It is often used in thermal spray coatings for gas turbine engine components, where thermal insulation is critical.
3. Chromium oxide (Cr2O3): Chromium oxide powder is used for its high hardness, corrosion resistance, and wear resistance. It is commonly used in applications where high temperature and abrasive wear resistance are required.
4. Titanium oxide (TiO2): Titanium oxide powder is known for its high refractive index and excellent UV resistance. It is often used in thermal spray coatings for optical and decorative applications.
These oxide powders can be applied using various thermal spray techniques, such as flame spraying, plasma spraying, or high-velocity oxy-fuel (HVOF) spraying. The choice of oxide powder and thermal spray technique depends on the specific application requirements and desired coating properties.