PRETREATMENT EQUIPMENT AND PRETREATMENT METHOD FOR WASTE

• Main Authors: KUBOTA HIROSHI, NOGUCHI SHUNTARO, SHIGEIZUMI KOGA, YAMADA HIROMI
• Format: Patent
• Language: English; Japanese
• Published: 18.01.2018
• Subjects: DISPOSAL OF SOLID WASTE; PERFORMING OPERATIONS; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; TRANSPORTING

PROBLEM TO BE SOLVED: To provide pretreatment equipment for waste capable of promoting a carbonation reaction of heavy metal in the waste.SOLUTION: Pretreatment equipment 30 includes: an inner drum 31 for accommodating incineration ash D1; and a gas supply device 38 for supplying gas containing carbon dioxide into the inner drum 31 to cause a carbonation reaction of heavy metal. The pretreatment equipment further includes: a rotary device 34 for rotating the inner drum 31 around an axial line A1; a temperature measurement device 75 for measuring a temperature of the incineration ash D1 during the carbonation reaction of the heavy metal in the incineration ash D1 in the inner drum 31; a controller for determining the state of the carbonation reaction of the heavy metal on the basis of the measurement result of the temperature of the incineration ash D1; and an electric motor for controlling rotating speed of the inner drum 31 on the basis of the determination result obtained by the controller.SELECTED DRAWING: Figure 6 【課題】本発明は、廃棄物中の重金属の炭酸化反応を促進することの可能な、廃棄物の前処理装置を提供する。【解決手段】焼却灰Ｄ１を収容する内側ドラム３１と、内側ドラム３１内に二酸化炭素を含有するガスを供給して、重金属を炭酸化反応させるガス供給装置３８と、を有する、前処理装置３０であって、内側ドラム３１を軸線Ａ１を中心として回転させる回転装置３４と、内側ドラム３１内で焼却灰Ｄ１中の重金属が炭酸化反応している際に、焼却灰Ｄ１の温度を計測する温度計測装置７５と、重金属の炭酸化反応の状態を、焼却灰Ｄ１の温度の計測結果に基づいて判断するコントローラと、内側ドラム３１の回転速度を、コントローラの判断結果に基づいて調整する電動モータと、を有する。【選択図】図６