Thickener is an important solid-liquid separation equipment in modern ore dressing plants. It is widely used in tailings thickening, concentrate dehydration and water recycling processes. The high dehydration efficiency of thickener can recycle and utilize the resources, and at the same time improve the production efficiency of the ore dressing plant, so as to control production costs and protect the environment. The following will introduce the working principle of thickener and the application of different types of thickener in ore dressing plants, so as to help you choose the appropriate thickener equipment according to your needs.
Working principle of thickener in mineral processing
The thickener in mineral processing flow uses gravity sedimentation and flocculation to achieve solid-liquid separation of slurry. After the slurry enters the thickener machine through the central feed barrel, the solid particles sink under the action of gravity in the static liquid. At the same time, the flocculant condenses the fine particles into larger flocs, accelerating the sedimentation rate of the ore particles. After the solid particles settle to the bottom of the thickener, they will form a high-concentration underflow discharge, and the upper layer will be a clarified overflow liquid. The thickener is generally equipped with a rake stirring device to continuously stir and deposit mineral particles to avoid clogging.
During the working process, the efficiency of thickener machine will be affected by many factors, which will reduce the concentration efficiency. These factors include slurry properties, flocculant dosage, stirring speed, and feed concentration. During the process, continuously optimizing these parameters can improve the working efficiency of the thickener.
In the actual mineral processing, thickeners can be divided into many types according to their different structures and working principles. The following article will introduce you to three types of thickeners: efficient deep cone thickener, tilted plate thickener and efficient thickener.
Efficient deep cone thickener in mineral processing
The efficient deep cone thickener is to combine gravity sedimentation and mechanical stirring. Because it has a large-angle bottom cone and a deep sedimentation tank, these characteristics cause the solid particles to be subjected to greater pressure during the sedimentation process, and the sedimentation rate and concentration effect of the minerals will be increased. The deep cone thickener also has the advantages of small footprint, good overflow water quality, and high underflow concentration, and can be used for the treatment of high-concentration tailings. In actual production, the high-efficiency deep cone thickener will also be equipped with an automated control system to achieve precise operation and efficient operation. The efficient deep cone thickener produced by Xinhai Mining has optimized its structure and greatly improved its processing capacity, which is 3-8 times higher than that of traditional thickeners, and its underflow concentration and overflow water quality have been significantly improved.
Tilted plate thickener in mineral processing
There are multiple layers of inclined plates in the settling tank of the tilted plate thickener, the mineral settling area is expanded and thus the processing capacity of the equipment is increased. The working effect of the inclined plate thickener is related to the inclination angle and spacing of the tilted plate. Proper adjustment of these parameters can accelerate the settling speed of solid particles on the inclined plate, and it can complete the concentration and clarification of the slurry in a short time. The tilted plate thickener has a compact structure, small footprint and large processing capacity. If the space of the ore dressing plant is limited, it is recommended to choose this kind of thickener equipment. It also has the advantages of easy operation and low maintenance cost. In addition, the tilted plate thickener can effectively reduce the water content in the tailings and reduce the volume of the tailings.
It is worth noting that the tilted plate thickener has high requirements for the pretreatment of the slurry. It is necessary to ensure that the particles in the slurry are evenly distributed, otherwise it will cause the tilted plate to be blocked. Xinhai tilted plate thickener is equipped with a central stirring device in the equipment, and a vibrator is installed on the outer wall of the cone bucket area, which can effectively avoid slurry blockage.
Efficient thickener in mineral processing
The efficient thickener plays an important role in the dewatering process and concentration process of slurry. It combines the advantages of deep cone thickener and tilted plate thickener. By optimizing the structural parameters and operating parameters of the machine, the sedimentation rate and concentration effect of mineral particles will be increased. In actual production, the high-efficiency thickener is equipped with an automatic control system to facilitate real-time monitoring of data and adjustment of the operating status of the equipment. As a new type of thickener machine, the overflow water quality and underflow concentration can reach a high level. Therefore, efficient thickening machine is widely used in mineral processing plants. In addition, the efficient thickener machine also has the advantages of large processing capacity, small footprint, and low energy consumption, it can effectively reduce the production cost of mineral processing and improve the recovery rate of ore. The processing capacity of Xinhai efficient thickener is 4-9 times that of traditional thickeners, and it can save 30% of energy consumption.
The above mainly discusses three types of thickener machines. In actual production, a variety of thickeners such as efficient improved thickeners, peripheral transmission thickeners, and hydraulic motor driving center thickeners are also used in mineral processing flow. The selection of specific types needs to consider the production requirements and budget of the ore dressing plant. Xinhai Mining can customize thickeners according to customer needs. If necessary, please feel free to consult.
Tags:Thickener, Thickener Machine, Mineral Processing
From:Xinhai Mining Machinery Company
