In recent years, with the rapid development of China's economy, the people's living standards have been continuously improved, and more and more domestic garbage has been collected. How to deal with these garbage has become an important issue. Beijing Golden Circle Building Materials New Technology Co., Ltd. has set its sights on this field and linked environmental protection with the cement industry. After more than three years of research and experimentation, it launched the municipal solid waste incineration joint cement production in December 2003. new technology. This new technology and key equipment efficient decomposition furnace have obtained national patents.
Domestic garbage disposal at home and abroad are nothing more than burning, landfilling, composting and other methods. The flue gas produced when the household garbage is burned contains a large amount of dioxins and other toxic components, which is very harmful to human health. When the waste incineration system is under construction, corresponding flue gas purification equipment must be installed. For the rotary kiln cement production process system, the pre-decomposition equipment and the dust collection equipment of the kiln tail are possessed by themselves. Beijing Golden Circle Building Materials New Technology Co., Ltd. organically combines the two to achieve the three major economic benefits of cement clinker production, energy saving, saving investment; at the same time, it does not cause secondary pollution in the process of garbage disposal, and has reached the national requirements. The requirements for resource recycling, reduction and harmless disposal of domestic waste.
The focus of municipal solid waste incineration co- cement production technology is not only to use the chemical constituents of domestic garbage for the beneficial effect of the cement production process, but more importantly to make the larger heat generated when the domestic waste is burned to be greatly utilized. . The technology is characterized by the fact that the cement calcining process and the waste incineration process are both independent and tightly combined, which avoids the impact of harmful components in the garbage on cement production, has a large-scale waste disposal, and effectively expands the disposal of cement production equipment. The scope of application. Make full use of the energy released during the waste incineration process to provide energy for the preheating and pre-decomposition process of the cement, realizing the reuse of waste and comprehensive utilization of energy, reducing the energy consumption of cement production and increasing the cement output. The raw material preheating and pre-decomposition process in the cement production process is fully utilized to replace the expensive deacidification equipment commonly used in the waste incineration process, which greatly reduces the construction cost of the waste incineration system and improves the purification degree of the waste incineration flue gas. Utilize the existing spray humidification equipment and dust removal equipment in the cement production process to further purify the waste incineration flue gas, and realize the full utilization of the existing equipment. At the same time, by using the heat released from the cooling process in the cement production process, the wastes of the incineration system are dried, the curing is promoted, the moisture is reduced, the combustion speed is accelerated, and the energy consumption of the waste incineration system is reduced.
The rotary kiln cement production line with a kiln type of Φ3×48m will be transformed into an environmental protection factory with garbage disposal. Not only can it enjoy the state subsidy policy according to the amount of domestic garbage handled, but it can also enjoy two tax exemption policies prescribed by the state each year. And because replacing the coal sprayed from the kiln tail with the high-temperature flue gas from waste incineration can save 50% of coal in a year, this alone can increase the net profit by about 8.4 million yuan, and the conversion investment by burning part is 8 million yuan. Around the yuan calculation, the investment can be recovered in one year.
Domestic garbage disposal at home and abroad are nothing more than burning, landfilling, composting and other methods. The flue gas produced when the household garbage is burned contains a large amount of dioxins and other toxic components, which is very harmful to human health. When the waste incineration system is under construction, corresponding flue gas purification equipment must be installed. For the rotary kiln cement production process system, the pre-decomposition equipment and the dust collection equipment of the kiln tail are possessed by themselves. Beijing Golden Circle Building Materials New Technology Co., Ltd. organically combines the two to achieve the three major economic benefits of cement clinker production, energy saving, saving investment; at the same time, it does not cause secondary pollution in the process of garbage disposal, and has reached the national requirements. The requirements for resource recycling, reduction and harmless disposal of domestic waste.
The focus of municipal solid waste incineration co- cement production technology is not only to use the chemical constituents of domestic garbage for the beneficial effect of the cement production process, but more importantly to make the larger heat generated when the domestic waste is burned to be greatly utilized. . The technology is characterized by the fact that the cement calcining process and the waste incineration process are both independent and tightly combined, which avoids the impact of harmful components in the garbage on cement production, has a large-scale waste disposal, and effectively expands the disposal of cement production equipment. The scope of application. Make full use of the energy released during the waste incineration process to provide energy for the preheating and pre-decomposition process of the cement, realizing the reuse of waste and comprehensive utilization of energy, reducing the energy consumption of cement production and increasing the cement output. The raw material preheating and pre-decomposition process in the cement production process is fully utilized to replace the expensive deacidification equipment commonly used in the waste incineration process, which greatly reduces the construction cost of the waste incineration system and improves the purification degree of the waste incineration flue gas. Utilize the existing spray humidification equipment and dust removal equipment in the cement production process to further purify the waste incineration flue gas, and realize the full utilization of the existing equipment. At the same time, by using the heat released from the cooling process in the cement production process, the wastes of the incineration system are dried, the curing is promoted, the moisture is reduced, the combustion speed is accelerated, and the energy consumption of the waste incineration system is reduced.
The rotary kiln cement production line with a kiln type of Φ3×48m will be transformed into an environmental protection factory with garbage disposal. Not only can it enjoy the state subsidy policy according to the amount of domestic garbage handled, but it can also enjoy two tax exemption policies prescribed by the state each year. And because replacing the coal sprayed from the kiln tail with the high-temperature flue gas from waste incineration can save 50% of coal in a year, this alone can increase the net profit by about 8.4 million yuan, and the conversion investment by burning part is 8 million yuan. Around the yuan calculation, the investment can be recovered in one year.
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