Learn more about mineral processing!

Thickener   is mainly used to treat slime and wastewater, and it is widely used in mining, metallurgy, coal, chemical industry, building materials and environmental protection. It not only improves the utilization rate of backwater and underflow density, but also plays an important role in environmental protection. This high-efficient thickener developed by Xinhai is not just a sedimentation equipment, but also a new type of   dewatering equipment . Here is the principle of high-efficient thickener. The slurry needs to remove most of the gas by the air-removing device before sent to the thickener, and then fully mix with the flocculant in the mixing arrangement. The flocculated slurry diffuses enters into the high concentration of sediment in a diffusion pattern. Slurry water can rise through the settled sludge layer and eventually discharge from the overflow. And the settled sludge layer prevents the solid particles from rising, which plays the biggest role in filtration...

The tailings dry stacking process developed by Xinhai is the most advanced tailings dry stacking system in the world, which saved 30% cost for customers. This process is composed of high efficient   hydrocyclone   and high frequency   dewatering screen . The tailings pulp enters into hydrocyclone firstly for thickening, and the concentration of underflow can reach to 65%~70%, then underflow is sent to dewatering process by high-frequency dewatering screen. Finally, the water content of oversize material is less than 16%, then, the oversize material is transported to a dry storage area via belt conveyor; The undersize material returns to cyclone feeding, and the cyclone and dewatering screen form a simple closed circuit system, which ensures that the dry material can be produced by the dewatering screen completely. In addition, the overflow of hydrocyclone enters to deep cone thickener and pressure filter for further thickening and dewatering to achieve complete tai...

The sludge thickening and press filter machine, by definition, that is a device combined the   thickening   and filtration processes. What are the advantages and disadvantages of the sludge thickening and press filter machine, the following contents will tell you. Advantages: Firstly, reducing the costs of thickening and filtrating operations. The use of the sludge thickening and press filter machine reduces the middle convergence costs of thickening and filtrating operations which needs a pump, buffer pump pool and steel tube to be connected. The using of the sludge thickening and   press filter   machine greatly reduces the costs of the auxiliary devices, the costs of the equipment and the costs of the labor management and energy consumptions. Secondly, saving the occupied area of the thickening and filtering operations. Conventional thickening and filtering operations may occupy lots of areas, th...

Although gold in nature exists in the form of simple substance, gold usually has the complex associated relation with other minerals in the raw ore. The conventional physical separation sometimes cannot be competent for grading the gold ore because of mineral the particle sizes, the associated relation and other reasons. It turns out to be the common beneficiation process of the gold dressing plants according to a hydrophobic difference in the mineral surface. Generally, there are many influential factors in the   gold flotation process , like particle size, flotation reagents, pulp density, the flotation time, stirring intensity, inflating volume, pulp temperature, and etc. If we want to get a better flotation effect, we must keep the best value for each parameter. 1. Particle size The milling fineness in the gold flotation process is determined by the gold dissemination size. Oversize and undersize will both affect the final flotation effect. Oversize on the one hand may...

As the increasing exploration of global mineral resources, the concept of “useless tailings” has completely eliminated by the mineral processing industry. Instead of this, the tailings is recognized as the potential resources with the highest secondary utilization rate. Taking China as an example, the total tailings volume has accumulated for 60 billion tons and the annual emissions are up to 1.6 billion tons, but the comprehensive utilization rate of tailings is only 18.9%. So, most of them have not been comprehensively developed and utilized. In addition, since the propose of “green mining” in 2008, China has successively published a series of policies and regulations to advocate “green mine” construction, and listed the tailing discharging in the latest Environmental Protection Laws of PRC, which explicitly stated that 15 yuan taxes should be paid for every ton of tailings. All in all, the increasing tailings emissions, the resulting environmental pollution and safety problem, ...

Similar to other mineral processing solutions, there are many factors that affect the   copper mining processing . Only recognizing these factors in copper mining processing designing can we improve the economic benefits of the copper mining plant. Particle size is an important parameter of influencing the result of copper mining processing. In the copper ore mining processing designing, the fineness of the copper ore is determined by the   copper mining equipment . At the same time, the over fine particle size will lead to the increase in the ore grinding energy consumption and marginalization. Those all affect the copper mining flotation indexes. In selecting copper mining reagent, the copper ore with coarse and fine sizes should adopt the proper flotation reagent. The reagent system refers to the flotation reagent kinds, dosage, the adding order, location, way(one time or separately add), the compound method and the working time. It is an important operating index in...

Molybdenum is an important rare metal resource. And molybdenite (MoS2) is the most widespread among various molybdenum ores, almost 99% molybdenum production is obtained from molybdenite in the world. Single molybdenum and copper-molybdenum ore are the two most common molybdenum minerals in the mineral processing plant. The main useful mineral in single molybdenum ore is molybdenite. Because of the good natural buoyancy of molybdenum ore, Xinhai often adopts direct floatation process after crushing and grinding. And the main useful minerals in the copper-molybdenum ore are chalcopyrite, pyrocopper, molybdenum and so on. In the practice of production, Xinhai usually adopts bulk flotation process that floats copper-molybdenum bulk concentrate firstly then separates copper-molybdenum. What’s more, single molybdenum ore and copper-molybdenum ore have low hardness, they are easy to become sliming in the grinding process, so Xinhai often uses stage grinding+stage the flotation process...

There are many types of Xinhai   ball mill   with patents, such as   energy-saving ball mill ,   rod mill ,   autogenous mill , overflow type ball mill, cylinder energy-saving overflow ball mill, vertical ball mill. The production model of Xinhai ball mill is flow line production. Xinhai possesses large vertical lathe (7.5 meters) and large rolling gear, the cylinder of ball mill uses automatic flame cutting loading and automatic welding mode; Large hydraulic automatic rolling machine is used for rolling; The surface of metal parts must be handled by sandblasting, which can remove the corrosion and oil contamination in the surface. After the sandblasting process, the equipment is sent to paint locker for surface spray paint. Xinhai often adopts ship paint and makes ZnO test before painting, which can improve the adhesive ability and service life of paint on the surface of equipment. In addition, Xinhai also makes a significant improvement on bal...