SLAG HOLE MONITORING DEVICE AND SLAG HOLE MONITORING METHOD

To improve monitoring accuracy for a slag hole.SOLUTION: A slag hole monitoring device 100 comprises a calculation unit 12 that calculates a first index value indicating a size of an area not blocked by slag 300 adhering to a slag hole (opening area 2042), in a slag hole 204, a comparison unit 13 that compares the first index value with a threshold value Th, and an adjustment unit 14 that adjusts the threshold value Th when at least one of parameters considered for adjusting the threshold Th, of the following parameters (a) to (f), satisfies a predetermined condition: (a) an amount of change over time of the first index value; (b) a temperature of a melting furnace temperature; (c) an amount of dust supply; (d) an input amount of a basicity adjusting agent; (e) an operating time of a waste treatment facility equipped with the melting furnace; and (f) a second index value indicating a size of an area blocked by the slag adhering to the slag hole in a predetermined area of the slag hole.SELECTED DRAWING: Figure 2 【課題】出滓口の監視精度を向上させる。【解決手段】出滓口監視装置１００は、出滓口２０４において、出滓口に付着したスラグ３００によって塞がれていない領域（開口領域２０４２）の大きさの程度を示す第１の指標値を算出する算出部１２と、第１の指標値としきい値Ｔｈを比較する比較部１３と、下記のパラメータ（ａ）〜（ｆ）のうち、しきい値Ｔｈの調整に考慮されるパラメータの少なくとも１つが、予め定められた条件を満たすとき、しきい値Ｔｈを調整する調整部１４と、を備える。（ａ）第１の指標値の時間変化量、（ｂ）溶融炉の温度、（ｃ）給塵量、（ｄ）塩基度調整剤の投入量、（ｅ）溶融炉を備えるごみ処理設備の稼働時間、（ｆ）出滓口の所定領域において、出滓口に付着したスラグによって塞がれている領域の大きさの程度を示す第２の指標値。【選択図】図２