With the rapid development of China's cement industry, in recent years, cement companies have higher and higher requirements for cooling, capacity expansion, energy saving and consumption reduction. It is understood that the cement kiln firing system has been operating at high temperature for a long time. In order to further improve the operation efficiency of cement thermal equipment, a better thermal insulation material is selected to reduce the shell temperature more without increasing or even decreasing the thickness of the insulation layer. At the same time, it can expand the effective volume and reduce the heat loss, so as to achieve the effect of reducing energy consumption, increasing production efficiency and bringing more economic benefits to the enterprise.

Nanjing Ziyang New Material Technology Co., Ltd. (hereinafter referred to as Nanjing Ziyang) independently developed, produced and sold the zit nano thermal insulation material. Its thermal insulation performance is about 4 times that of the traditional calcium silicate board, which can achieve the purpose of expanding the volume and saving energy. The following is the performance comparison of various types of nano thermal insulation materials and traditional materials in Nanjing Ziyang. See TABLE-1 for details.

   Main performance index of thermal insulation materials - 1

1、 3200t tertiary air duct of xingchuancheng Jianbao cement

Due to the impact of the epidemic in 2020, various cement enterprises have responded to the relevant policies to adjust the production cycle. Considering the better cooling effect of nano materials on other sintering equipment, star boat city Jianbao cement has applied zit nano thermal insulation materials in the tertiary air duct for thermal insulation. The site installation pictures are as follows:

In order to verify the performance of zit nano thermal insulation material, the shell temperature of Jianbao cement was tested after a week of operation of the tertiary air duct, and compared with the shell temperature of the original structure. The specific comparison results are shown in the following table-2:

                  The effect of the thermal insulation transformation of the insulation layer of the tertiary air duct - 2

2、 Mizhi Jidong Cement 2000t kiln head cover

During the operation of Mizhi Jidong Cement kiln hood, the shell temperature is too high, and the shell temperature can reach more than 140 ℃. The insulation effect is poor, which leads to a lot of heat loss and reduces the thermal efficiency.

After a detailed demonstration of Nanjing Ziyang zit nano thermal insulation board, Mizhi Jidong Cement decided to use zit nano thermal insulation material inside the kiln hood with over temperature

In order to verify the performance of zit nano thermal insulation material, the shell temperature of Mizhi Jidong Cement was tested after the kiln hood was running for a period of time, and compared with the shell temperature of the original structure. The specific comparison results are shown in the following table-3:

        Effect table of thermal insulation transformation of kiln hood insulation layer-3

In the long-term operation process of Mizhi Jidong flue gas chamber, the shell temperature is too high, which leads to a large amount of heat loss and reduces the thermal efficiency. The use of nano heat insulation board meets the needs of capacity expansion, greatly reduces the shell temperature and reduces the heat loss. From the above application data and temperature preservation effect, it can be seen that zit nano thermal insulation material will be widely used in the future, including the cement industry, Are the preferred new insulation materials in various industries.

3、 Other site construction pictures

1. Construction picture of nano plate for 5000t grate cooler of Guangxi Jinli Cement Co., Ltd

2. Construction picture of 5000t tertiary air duct nano plate of Guilin South Cement Co., Ltd

Construction picture of nano plate for 5000t calciner of Guilin South Cement Co., Ltd

3. Construction picture of 4000t cement sliding shoe thermal insulation felt of Guizhou Jinjiu Cement Co., Ltd