Reaction kettle

A reaction kettle is characterized in that a stirring shaft is hollow to form an oxygen channel, an oxygen inlet is formed in the position, close to the upper end, of the stirring shaft, and a first oxygen outlet is formed in the bottom of the stirring shaft. Through the mode, oxygen can be directly introduced into the center position of the bottom of the reaction cavity, rises under the action of pressure difference, and can be rapidly and fully mixed and reacted with iron-containing waste acid along with rotary stirring of the stirring shaft in the reaction cavity, so that the reaction effect is greatly improved. 一种反应釜，其特征在于：搅拌轴中空设置形成氧气通道，搅拌轴靠近上端的位置形成有氧气进口，搅拌轴底部形成有第一氧气出口。通过上述方式，能够使得氧气直接通入到反应腔的底部中心位置，氧气在压差的作用下向上升，并随着反应腔内搅拌轴的旋转搅拌，能够快速且充分地与含铁废酸混合反应，大大提高反应效果。