★Problem description:
At present, cement dry production lines almost all use kiln head and kiln tail exhaust gas as drying heat source to dry the materials entering the coal mill. The exhaust gas contains a certain amount of clinker and other dust. After entering the coal mill, it is mixed with coal powder, which not only affects the quality of coal powder, but also has an adverse effect on the subsequent calcination and clinker quality, and will aggravate the wear of the mill wind ring and the kiln head and kiln tail scales.
Therefore, in order to remove most of the impurities in the drying exhaust gas, it is very important to pre-treat the exhaust gas dust before the coal mill.
★Solution
Without changing the current existing process, add a high-efficiency low-resistance cyclone dust collector to the hot air pipeline before the mill, design it according to its air volume, and greatly remove dust
impurities. The dust collected by the high-efficiency low-resistance cyclone dust collector is stored through the ash hopper and sent to the appropriate location through a small conveying device.
To implement this solution without changing the existing production process and the full pressure of the fan, the most critical issue is to strictly control the resistance of the cyclone dust collector (within 1000pa) while ensuring the dust removal efficiency.
★Application effect:
This achievement has been well applied in Southern Cement: Guangde Dushan Southern, Changxing Southern, Huzhou Huaikan Southern, Hongshan Southern, Anhui Sanshi Hede Cement Co., Ltd., etc.
1. Reduce the wear of coal mill equipment, especially the wear of the mill wind ring has improved significantly;
2. Increase the output of coal mill;
3. At the same time, the coal powder ash is expected to be reduced by more than 1-2%, reducing the quality fluctuation of coal ash;
4. Reduce the wear of the kiln head and kiln tail scales.
From the operation and user feedback, the use effect is very ideal; and the investment can be recovered in one year, and its investment benefits are significant.

★Company Introduction

Yancheng Hongcheng Chaoyu Environmental Protection Co., Ltd. is a national high-tech enterprise specializing in the research and development, production, sales, installation, commissioning and service of environmental protection and energy-saving equipment such as atmospheric environment treatment, waste gas treatment and sewage treatment. It is a well-known domestic manufacturer, system integrator and general contractor of dust removal, desulfurization and denitrification, ultra-low emission, waste gas treatment and sewage treatment equipment. The various types of dust removal equipment, desulfurization and denitrification equipment, sewage treatment and other environmental protection and energy-saving equipment produced by the company are advanced in technology and reliable in quality. They are widely used in thermal power, coking, garbage power generation, chemical industry, papermaking, steel, metallurgy, carbon, glass, cement building materials and other industries. The products are sold to more than 20 provinces and cities across the country and have been widely praised by customers.

★Factory Appearance

★FAQ

Q. How high is the dust removal efficiency of bag filters?
A. The dust removal efficiency can generally reach more than 99%, and can effectively filter fine dust above 0.3 microns.

Q. Can bag filter handle high temperature gas?
A. It can handle high temperature gas up to about 250℃. It needs to use high temperature resistant filter material and control the temperature and humidity of the gas.

Q. How to extend the service life of bag filter?
A. Choose appropriate filter material, clean dust on time, avoid high temperature shock and dust blockage, and perform regular inspection and maintenance.