Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ball mill grinding ball and method for improving performance of construction waste recycled concrete aggregate
The invention discloses a ball mill grinding ball and a method for improving the performance of construction waste recycled concrete aggregate. Multiple rows of pits are formed in the surface of the ball mill grinding ball in the circumferential direction, and the pits are in the shape of a spherical crown. The method comprises the steps that first-stage jaw crushing processing is firstly performed on construction waste concrete blocks to obtain recycled concrete aggregate, then the recycled concrete aggregate processed through jaw crushing is mixed with the grinding ball, ball grinding two-stage processing is performed for 1-5 min, and finally the recycled concrete aggregate processed through ball grinding is sieved to obtain the recycled concrete aggregate conforming with the grain size distribution requirements. According to the ball mill grinding ball and the method, crack damage remained on the surface and interior of the recycled concrete aggregate due to crushing processing can be reduced, the weak components on the surface of the aggregate are rubbed off through the grinding ball with the pits in an extruding mode to enable the aggregate to approach to be in a ball shape, grain shaping is achieved, the physical performance of the construction waste recycled concrete aggregate is further improved, the crushing performance of the aggregate is especially improved, the water absorption is especially lowered, and resource recycling of construction waste is promoted.
Ball mill grinding ball and method for improving performance of construction waste recycled concrete aggregate
The invention discloses a ball mill grinding ball and a method for improving the performance of construction waste recycled concrete aggregate. Multiple rows of pits are formed in the surface of the ball mill grinding ball in the circumferential direction, and the pits are in the shape of a spherical crown. The method comprises the steps that first-stage jaw crushing processing is firstly performed on construction waste concrete blocks to obtain recycled concrete aggregate, then the recycled concrete aggregate processed through jaw crushing is mixed with the grinding ball, ball grinding two-stage processing is performed for 1-5 min, and finally the recycled concrete aggregate processed through ball grinding is sieved to obtain the recycled concrete aggregate conforming with the grain size distribution requirements. According to the ball mill grinding ball and the method, crack damage remained on the surface and interior of the recycled concrete aggregate due to crushing processing can be reduced, the weak components on the surface of the aggregate are rubbed off through the grinding ball with the pits in an extruding mode to enable the aggregate to approach to be in a ball shape, grain shaping is achieved, the physical performance of the construction waste recycled concrete aggregate is further improved, the crushing performance of the aggregate is especially improved, the water absorption is especially lowered, and resource recycling of construction waste is promoted.
Ball mill grinding ball and method for improving performance of construction waste recycled concrete aggregate
LIU GUOTAO (Autor:in) / LI LEJI (Autor:in) / XIONG FENG (Autor:in)
25.11.2015
Patent
Elektronische Ressource
Englisch