BGRIMM Machinery & Automation Technology Co., Ltd.

High-efficient Conditioning Agitation Tank

Introduction

The high-efficient conditioning agitation tank mainly includes main shaft, impeller, circular cylinder, beam and other spare parts. The two driving methods of reducer drive and belt drive can be produced according to requirements. The impeller is of axial flow under-pressure structure, so that the pulp can flow down in the circular cylinder and flow up in the tank to form a big up-and-down circulation in the tank when doing the agitation work and the pulp can be mixed quickly and evenly. The purpose of circular cylinder is to increase the pulp circulating volume and speed up the mix of pulp.

Application

The conditioning agitation tank is a new type of high-efficient pulp agitation tank, which is suitable for the mixing of pulp and reagent, with the pulp density ≤ 1.5t/m³ and pulp concentration <50%, that is the pulp conditioning and mixing before flotation.

Main Features

Impeller: the impeller for large pulp conditioning agitation tank is of spiral pusher structure made by whole casting and the service life is 1-2 years. Compared with oblique blade open type impeller, the spiral pusher type impeller can save about 30% power consumption under the same mixing condition.

Circular cylinder: the role of circular cylinder is to increase circulation volume, realize systemic circulation of pulp, and avoid short-circuit, particle and concentration stratifications. Pulp distribution and guide plate is set at the bottom of circular cylinder to avoid pulp rotation inside the tank and enhance the pulp mixing effect. The circular cylinder is lined with wear resistant and anti-corrosive rubber or ceramic.

Circulation volume: big pulp circulation volume, shot time needed for pulp mixing. Generally, the designed pulp circulation volume per minute is 1-2 times of the tank volume.

Coarse sand removal pipe: coarse sand removal pipe can be designed according to requirement. By using the principals of mixing kinetic energy and siphon, the coarse particles unable to be discharged from overflow mouth can be discharged from the sand removal pipe to prevent sand setting at the tank bottom.

Pulp flow field: the agitation tank pulp field can be calculated by using CFD simulation to optimize the design of technical parameters of agitation tank.

Design method: the company first designs and calculates impeller technical parameters and rotation speed according to the characteristics of mixing pulp, and then simulates the pulp flow field by using CFD and analyzes pulp flow diagram to determine whether the mixing pulp suspends evenly or settles in the tank.