MULLITE INSULATION BRICK PROFESSIONAL MANUFACTURER

Status: refractory material industry of zhengzhou city in 2010-2016 exhibited a transformed gas producer gas, originally performed is "integrated air pollutant discharge standard" (GB 16297-1996), now perform "standard of atmospheric pollutant emission of industrial furnaces in henan province" (DB41/1066-2015) (oxygen content is 9% of the cases, particulate matter, sulfur dioxide, nitrogen oxides were not more than 30, 200, and 400 mg/m3).
Suggestions: 1. Study the comprehensive improvement and development of environmental protection of zhengzhou refractory industry from the general pattern. Zhengzhou refractory material is a pillar industry of local economic development, which not only supports the safe operation of high-temperature industry, but also solves the local people's employment.It is suggested to support the green development of the industry.2. It is suggested to refer to the standards and indicators of refractory material emission in shandong and liaoning provinces, with the reference oxygen content of 18%.3. Considering the fact that the varieties of refractory vary greatly among different enterprises, it is suggested to formulate the nox emission standard and ultra-low emission standard according to the classification of furnace temperature. During the operation period, enterprises should accelerate the transformation of environmental protection and install online monitoring facilities at the same time.For enterprises that are stricter than national and provincial standards and meet the requirements of ultra-low emission standards, the government should provide policy support in various aspects.4. It is suggested to support enterprises in technological research and development and energy-saving transformation, and encourage the development of unshaped refractory materials.At present, about 42% of the unshaped refractories do not need to be fired at high temperature, and the energy used is less than 10kg standard coal/ton products. Even when the products need to be baked, the energy used is less than 35kg standard coal/ton products.In order to reduce the denitration pressure in the later stage, it is suggested to adopt the low nitrogen oxygen combustion technology step by step.
The meeting introduced the development of zhengzhou refractory industry, combined with its production practice put forward a lot of environmental comprehensive treatment recommendations, experts on the production process of different equipment, temperature, fuel and other pollutants produced by the comprehensive treatment of the proposed guidance.The person in charge said that after summarizing everyone's opinions, the government will report to formulate a practical and feasible refractory comprehensive improvement plan in 2019 as soon as possible.