CLEANING METHOD OF HEAT STORAGE TYPE GAS TREATMENT DEVICE

PROBLEM TO BE SOLVED: To easily discharge powder dust accumulated in each of heat storage chambers, a supply duct and an exhaust duct in a short time, in a heat storage type gas treatment device.SOLUTION: A cleaning gas is guided from a supply duct 15 into a combustion chamber 14 through a part of heat storage chambers 11, 12 in a heat storage type gas treatment device 10 by selector valves 17a, 17b by a blower fan 20. On the other hand, the cleaning gas guided into the combustion chamber is guided to an exhaust duct 16 by selector valves 18b, 18a through the other heat storage chamber 12, 11. The heat storage chambers to implement the operation are successively switched by switching the selector valves 17a, 17b, 18b, 18a to collect powder dust p in each of the heat storage chambers, the supply duct and the exhaust duct in a collection body 24 through the exhaust duct.SELECTED DRAWING: Figure 4 【課題】 蓄熱式ガス処理装置において、各蓄熱室や供給ダクトや排気ダクトに溜まった粉塵を短時間で簡単に排出できるようにする。【解決手段】 送風ファン20により清掃用気体を供給ダクト15から、切換弁17a,17bにより蓄熱式ガス処理装置10における一部の蓄熱室11,12を通して燃焼室14内に導く一方、この燃焼室内に導かれた清掃用気体を他の蓄熱室12,11を通して切換弁18b,18aにより排気ダクト16に導き、切換弁17a,17b、18b,18aを切り換えて前記の操作を行う蓄熱室を順々に切り換え、各蓄熱室、供給ダクト及び排気ダクトにおける粉塵pを、排気ダクトを通して回収体24に回収させるようにした。【選択図】 図４