A vertical shaft multi-stage blow bar sand making machine

Abstract

The invention discloses a vertical shaft type multilevel plate hammer sand making machine. The vertical shaft type multilevel plate hammer sand making machine comprises a plate hammer rotor arranged in a crushing cabin by a main body, the portion, extending out of the bottom of the crushing cabin, of plate hammer rotor is connected with driving motors through a belt transmission member, the plate hammer rotor is composed of a rotor body and a plurality of long-strip-shaped hammer plates, the hammer plates are fixedly connected onto the rotor body in an arrangement form that the lengths of the hammer plates are perpendicular to the axis of the rotor body, the hammer plates are distributed along the axis of the rotor body to form a multilevel plate hammer structure, the feeding port formed in the upper portion of the plate hammer rotor is provided with a material distributing device, the bottom of the crushing cabin is provided with a discharging hopper, the number of the hammer plates in a random layer is two, the two hammer plates are uniformly arranged in on the periphery, the hammer plates of the adjacent layers are arranged to be in 90-degree malposition with one another in the peripheral direction, and the hamper plates incline backward relative to the rotating direction from the near end to the far end. Preferably, the hamper plates of the two layers at the lowest end of the rotor body further form 3-8-degree lower torsional angle twisting downward. The vertical shaft type multilevel plate hammer sand making machine has the advantages that the energy utilization rate and the sand forming rate are high, and the operation is stable. The vertical shaft type multilevel plate hammer sand making machine is suitable for the crushing of cobblestone san making, gold ore, limestone, gypsum and the crushing before cement ball-milling.

Description

technical field [0001] The patent of the present invention relates to a vertical shaft sand making machine, in particular to a vertical shaft multi-stage blow bar sand making machine. Background technique [0002] Natural sand is a non-renewable resource in a short period of time. With the rapid development of my country's infrastructure, natural sand is almost exhausted. At the same time, due to the devastating damage to resources and the environment caused by excavation of sand and gravel, many cities have banned the use of natural sand due to factors such as flood control, environmental protection, and resource protection. Vertical shaft sand making machine is a kind of building material sand making equipment developed in recent years, which can crush rocks, ores or natural pebbles and other stones into industrial sand to replace natural sand. Existing vertical shaft crushers mostly adopt a single-layer or two-layer rotor structure. During the process of materials enteri...

AI Technical Summary

Problems solved by technology

Due to the continuous rotation of the blow bar during the working process, the materials refracted from the near end of the blow bar hitting surface are easily touched by the far end of the same blow bar hitting face during the ejection process, most of which form friction Loss, consumes the kinetic energy of the material, reduces the collision energy with the guard plate or material on the wall of the cylinder, and affects the sand forming rate

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