Low-concentration pulper

The utility model relates to a low-concentration pulper (100) which is provided with a barrel (200) suitable for containing pulp and a rotor (300) arranged on the inner side of the bottom of the barrel (200), an opening (400) used for feeding raw materials is formed in the top of the barrel (200), a plurality of inward protruding parts (500) extending in the height direction of the barrel wall are arranged on the inner side of the barrel wall of the barrel (200), and the rotor (300) is arranged on the inner side of the barrel wall of the barrel (200). The protruding part (500) is provided with a first section (510) inclined forwards and upwards in the rotation direction of the rotor. 本实用新型涉及一种低浓度碎浆机(100)，具有适于容纳浆料的筒体(200)和布置于所述筒体(200)底部内侧的转子(300)，所述筒体(200)的顶部具有用于投放原料的开口(400)，其中，所述筒体(200)在筒壁内侧具有若干沿筒壁高度方向延伸的向内突出部(500)，所述突出部(500)具有沿转子的旋转方向向前上方倾斜的第一区段(510)。