The concentration of NOx in the flue gas of glass kilns is as high as 1,500~3,500ppm.  There is a lot of dust, and it contains potassium, sodium, boron, and silicon. The fine dust  harms the tradition SCR and cannot be collected by Electrostatic precipitator; it is difficult to use filter bags to remove dust; ABS hazards also cannot be improved

The high-temperature flue gas of the kiln first passes through the cooling system. After the flue gas temperature is adjusted to 360~380°C, hydrated lime and ammonia are sprayed into the flue gas. After fully mixing with the flue gas, the flue gas enters the ceramic filter tube integrated desulfurization, denitrification and dust removal system. After treatment The standard flue gas is sent to the outside of the chimney through the induced draft fan to complete the entire desulfurization, denitrification and dust removal process.

The traditional flue gas treatment system has many processing steps, a large number of equipment, a large area, and a large enterprise investment; the cost of later operation is high. For example, due to the use of high-temperature electrostatic precipitator, the electrodes are often covered with dust and need to be cleaned frequently; desulfurization The calcium carbonate, calcium sulfite, and calcium sulfate waste residue generated during the process requires solid waste treatment.

The ceramic filter tube integrated desulfurization, denitrification and dust removal system integrates desulfurization, denitrification and dust removal. Due to fewer processing steps, the number and volume of equipment are reduced, making it more concentrated and compact, and the floor space only accounts for 1/3 of the traditional flue gas treatment system.

In addition, the desulfurizer used in the ceramic filter tube integrated desulfurization, denitrification and dust removal system produces sodium sulfate and sodium sulfite waste residues that can be recycled and reused as raw materials for glass production, achieving zero discharge of solid waste, and is a closed-loop green and economical method. processing method. Moreover, since the exhaust temperature of this system is around 180~200°C, the flue gas it emits is plume-free and can better meet the company’s next step of flue gas whitening requirements.

Therefore, as a new technology applied in the glass industry, the ceramic filter tube integrated desulfurization, denitrification and dust removal system simultaneously realizes the integrated collaborative treatment and treatment technology of desulfurization, denitrification and dust removal, and has good promotion and application value in the glass industry. It is especially suitable for new glass production lines, but also for cement, waste incineration and other industrial fields.