METHOD AND DEVICE FOR PREVENTING SOLID PRODUCT FROM ADHERING TO INNER SURFACE OF EXHAUST GAS PIPE AND EXHAUST GAS TREATMENT DEVICE WITH THE DEVICE

摘要

A solid product removal apparatus for removing a solid product adhering to an gas exhaust pipe member has a rinsing water inlet pipe member having a tip opening located inside the gas exhaust pipe member for feeding rinsing water into the inside of the gas exhaust pipe member from the tip opening thereof. The solid product removal apparatus is particularly useful when exhaust gas contains an ingredient capable of forming a solid product upon reaction with water inside the gas exhaust pipe member and can rinse off the solid product adhering to the inner face of the gas exhaust pipe member with rinsing water. A plurality of tip openings may be provided for the rinsing water inlet pipe member in a relationship so as to be spaced apart at a given interval along a direction of flow of the exhaust gas, and when a solid product formed upon reaction with a moisture inside the gas exhaust pipe member and adhering to the inner face of the gas exhaust pipe member is rinsed with rinsing water introduced one of the plural tip openings, a solid product formed newly upon reaction with the rinsing water and adhering thereto can be rinsed off with the rinsing water introduced from another tip opening located at a different position. Further, an adherence of the solid product can be prevented by heating the inner face of the gas exhaust pipe member. Moreover, a scraping member means for scraping the solid product stuck to the inner face of the gas exhaust pipe member may be provided in the gas exhaust pipe member so as to be slidably movable in the gas exhaust pipe member.