Ash removal device capable of relieving high-temperature corrosion

Abstract

The invention relates to an ash removal device capable of relieving high-temperature corrosion. The ash removal device is used for ash removal of a garbage incineration hearth. Three communicated flues are arranged in the hearth, guide pipes are arranged at the tops of the second flue and the third flue respectively, a navigation suspension is arranged above the hearth, a hose driving device and abooster pump are installed on a movable table of the navigation suspension, one end of a water supply hose on the hose driving device is connected with a water outlet of the booster pump, the other end of the water supply hose is connected with a rotary spray head, a PLC remote control system can control the movable table on the navigation suspension to transversely move to the position above thesecond flue and the third flue, the hose driving device can unfold or wind the water supply hose, the rotary spray head vertically penetrates through the guide pipes along with the water supply hoseto be inserted into or drawn out of the second flue and the third flue, and the rotary spray head is an automatic rotary spraying type spray head. The ash removal device has the advantages of being small in installation space, capable of saving space, convenient to arrange, low in operation cost and free of corrosion, and the operation cycle is prolonged.

Description

technical field [0001] The invention relates to the field of garbage incineration power generation, in particular to a secondary and tertiary flue ash cleaning device for reducing high-temperature corrosion of garbage incinerators. Background technique [0002] At present, the problem of high-temperature corrosion on the heating surface is common in waste incinerators. The main factor causing high-temperature corrosion is the problem of dust accumulation on the heating surface. The ash on the heating area is in a molten state at high temperature, and the ash accumulation in the molten state causes molten salt corrosion on the heating surface. In addition, the ash in the heated area leads to the deterioration of heat transfer, especially the ash in the heated area of ​​the second and third flues of the furnace, which makes the flue temperature in the second and third flues unable to drop, which in turn leads to the overheating of the flue gas at the superheater of the horizon...

AI Technical Summary

Problems solved by technology

Although such a soot cleaning scheme can alleviate the high-temperature corrosion of the superheater in the horizontal flue to a certain extent, the effect is not obvious

Because, due to the presence of ash in the heated area of ​​the second and third flue channels of the furnace, the flue temperature at the entrance of the horizontal flue cannot be lowered, which will easily lead to high-temperature corrosion at the superheater

Images