METHOD FOR CLEANING EXHAUST GAS TREATMENT FACILITY

• Main Authors: TSUKAMOTO KAZUMI, KIMURA TAKANOBU, HARASHIMA SHINGO
• Format: Patent
• Language: English; Japanese
• Published: 13.10.2023
• Subjects: BLASTING; CLEANING; CLEANING IN GENERAL; COMBUSTION APPARATUS; COMBUSTION PROCESSES; CONSUMING WASTE PRODUCTS BY COMBUSTION; CREMATION FURNACES; FLUES; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PREVENTION OF FOULING IN GENERAL; REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES; SEPARATION; TRANSPORTING; WEAPONS

To provide a method for cleaning an exhaust gas treatment facility which can sufficiently remove solid materials such as deposits and attached materials in an exhaust gas treatment facility in short time.SOLUTION: An exhaust gas treatment facility has a combustion chamber 1 for combusting drain water, a nozzle for flowing water along the inner wall surface of the combustion chamber 1, a water feeding line for feeding the water to the nozzle, a primary smoke washing chamber 11, and a scrubber 20. When solid materials of the scrubber 20 are removed, an alkaline cleaning agent aqueous solution is injected to a lower water tank 44 from a chemical injection device 50, a circulation pump 23 is operated, and water is sprinkled from the nozzle 21. When a detected pH of pH meters 52 and 53 maintains a specified pH for predetermined time or more, cleaning is finished.SELECTED DRAWING: Figure 1 【課題】排ガス処理設備における堆積物や付着物などの固形物を短時間で十分に除去することができる排ガス処理設備の洗浄方法を提供する。【解決手段】排ガス処理設備は、排水を燃焼処理する燃焼室１と、該燃焼室１の内壁面に沿って水を流すノズルと、該ノズルに水を供給する給水ラインと、１次洗煙室１１と、スクラバー２０等を有する。スクラバー２０の固形物を除去する場合、薬注装置５０からアルカリ系洗浄剤水溶液を下部水槽４４に注入し、循環ポンプ２３を作動させてノズル２１から散水する。ｐＨ計５２，５３の検出ｐＨが所定時間以上規定ｐＨを維持するようになったならば洗浄を終了する。【選択図】図１