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Thickener is a new type of thickener and dewatering equipment which combines the filtrating characteristics of the mud layer. It is mainly used for the dewatering treatment of concentrates and tailings. Generally, the thickener is mainly composed of a concentrated pool, rake frame, transmission device, rake lifting device, feeding device, unloading device, and signal safety device. The main feature of the thickener is to add a certain amount of flocculant in the slurry, then the ore grain forms floccules, which speeds up its sedimentation rate, thus improving the thickening efficiency. Thickening is the last process in the whole mineral processing production line. For the wet products after flotation process often need the thickening operation to remove the extra water. Usually, the thickener manufacture sends the independent parts to the customers. So, the installation shall be carried out on the site and the installation sequence of the thickener shall be noticed carefully. Th...

Spiral classifier and hydrocyclone are both mineral processing classifiers. The mineral processing classifier generally include four kinds, increased flow hydrocyclone classifier, cone classifier, centrifugal classifier( hydrocyclone ) and mechanical classifier ( rake classifier, spiral classifier ,  Floating tank classifier). Today, we will only choose Spiral classifier and hydrocyclone this two equipment to make a detailed comparison, that is because they are the most widely used classifiers in our mill plant, at present. Spiral Classifier is a kind of mechanical classifier, and it is composited by the u-shaped water tank, spiral device, transmission device, lifting mechanism, bearings and other parts. The working principle of spiral classifier is: the milled pump was fed into the u-shaped slot from spiral classifiers feeding mouth, after the continuous rotations and stirrings of the spiral device, the light and fine particles were suspended in the pulp surface and flowed fro...

The application fields of phosphorite are growing wider, thus making a constant increase in the demand of phosphorite. In China, phosphorite dressing method is very mature. Although China has a great amount of phosphorite ore resource, there are many lean ores and few rich ores, with relatively complicated ore properties. According to different characteristics, the phosphorite dressing methods can be divided into direct flotation, direct-reverse flotation, double reverse flotation and heavy media hydrocyclone separation, and etc. (1)Direct Flotation Method Direct flotation method is appropriate for the separation of silica phosphotite ore. The flow chart is as diagram 1. During direct flotation, inhibitors like Na2SiO3 and are commonly used to inhibit silica and calcium minerals; anion collectors are used to select phosphorite. Ningxia Helanshan mine adopts this method to process raw ore with 8.0% P2O5, which obtains concentrates with a grade of more than 35% and recovery rate...

Ball mill is a kind of a very important grinding equipment in ore dressing equipment. However, Xinhai mineral processing expert in visit knows, many users were not very familiar with the operating methods of grinding mill , which led to a lot of unnecessary failures. So, what should we note when operating the ball mill ? 1.Output size We can choose the output size according to the nature of the object in the grinding process. Do not change the output size when the ball mill is under the output state. Too small output size will increase the power consumption of grinding, and it is difficult to meet the design requirements; Too large output size will cause overloading, increase the electric current of the ball mill, and reduce the grinding efficiency, even endanger the safety of the grinding equipment. 2.Quantity of ball addition During the operation of the ball mill, the weight and diameter of the steel ball are constantly reduced due to wear, so we need to regularly add new ball for th...

When the material to be processed by the flotation contains many kinds of components to be recovered, it needs to base on the floating property and the symbiotic relationship to determine the order of the different components to get the products separately. In the production, the flotation process is usually used preferentially in the lead and zinc ore . The following will introduce it simply. In the practical production, by the different beneficiation order, the processes to be adopted can be divided into four categories that are preferential flotation process, mixed flotation process, partial flotation process and equal flotation process. Preferential flotation process means a process that every component to be recovered in the material will float one by one and then pre-recovery component rich in one will be got finally. Mixed flotation process refers to that all the components in the material will be floated together and the intermediate products having been got will be separate...

As an important member of ore dressing equipment,   magnetic separator  plays an indispensable role in the magnetic separation production line. So, the effect of magnetic separator arouses attention among equipment manufacturers and users. Xinhai mineral processing expert has come out with recommendations for how to improve the efficiency of magnetic separators. One. Add material-leveling device As we all know, magnetic separators mainly rely on the magnetic force of the equipment to complete the magnetic separation process. So, the more distance from the magnet drum surface, the weaker magnetic force is. Therefore, the too thick material flow will cause the magnetic particles to mix up with non-magnetic particles, then affect the separation effect. Xinhai mineral processing expert suggests, add material-leveling device before dry separation, use the effective width of the belt as far as possible, make the material layer thin and even, which can guarantee the dry sepa...

Generally, various flotation machines have the same theoretical basis. That is, the hydrophobic (aerophilic or oil) nature of the ore surface can be activated with the help of the flotation reagent, then the ore aggregates at the interface of liquid-gas or water-oil. There is one thing that plays a big role here — froth. So what does froth play in the flotation process? Actually, v-belt driving of motor drives the impeller to rotate, then forms the negative pressure under the centrifugal effect, then inhaled air produces the froth under the action of the centrifugal force of impeller. The main purpose is to enrich the hydrophilic mineral, improve the precision of mineral processing, decrease the difficulty of processing (such as copper, lead, and zinc), then achieve the high-quality and high-efficient separation. These froths play a very important role in the froth flotation process . It is because of these froths that the ore particles or ore powder can be attached to the sticky...

Although gold exists in the form of the simple substance in the natural world, gold is usually associated with other mineral ores in a complex relationship, due to the particle size and associated relationship, etc. Sometimes the conventional physical separation method has been incapable of classifying gold mine, so the separation process that uses different surface hydrophobicity of mineral becomes the common beneficiation processes in gold beneficiation plant. There are many that affect the gold flotation process , such as particle size, flotation reagent system, pulp density, flotation time, agitation intensity, inflatable volume, pulp temperature, etc., In order to achieve better flotation effect, all parameters must remain optimal value for the flotation process. 1. Particle Size In gold flotation process, the grinding fineness depends on the gold Khenpo size, too large or too small will affect the final flotation effect. Too big particle size, on the one hand, the gold might...

In copper beneficiation solutions, copper mining process equipment price is related to its type, specification, and minerals to be processed. Among these factors, the type of mineral is the key to choose the most suitable equipment. To make sure copper mining process equipment type and specification, the quality and type of copper should be studied. Taking the example of copper in Dexing, Jiangxi, it is a kind of porphyry copper deposit. And according to different mineral quality and containing properties, it is divided into two types, altered phyllite and altered granodiorite. It also can be divided into the thin vein and disseminated structure, according to various structures. There is much-oxidized ore and mixed ore in the upper and surrounding of ore. The content of copper in raw mineral is 0.5%, sulfur 2%, molybdenum 0.01%, gold 0.235g/t. The composition of ore is simple, and the mainly useful minerals are pyrite, chalcopyrite, and chalcocite. Then there are chalcocite, bornite...

It has become a consensus that the working noise is relatively large in the mineral processing plant, which not only affects the lives of people in the surrounding areas, but also causes physical and mental damage to the operators. With the continuous development of the mineral processing industry, the technology of noise reduction is more and more advanced. Today, Xinhai illustrates how to reduce noise taking   vibrating screen   the as an example. Generally, the vibrating screen is featured with the high noise level and complex sound source. So how to effectively reduce the noise of the vibrating screen? Xinhai technical expert summarizes several methods of noise reduction as follows. First, whether the loose parts of the equipment cause noise. Therefore, the first method of noise reduction is to tighten all the parts of the vibrating screen, especially the screen plate that should be replaced frequently. Next, paste with   rubber  board on the side of scr...

According to their different discharging end,   ball mills   can be divided into three types:  grid type, overflow type and peripheral discharge type. In practice, peripheral discharge ball mills are rarely used; while grid ball mills and overflow ball mills are commonly adopted. If comparing the grid types and overflow types,  what are the common grounds and differences between them? Under what circumstances are grid ball mills a better choice? And overflow ball mills?  Here, we will give a brief introduction to you. Common Grounds: Overflow ball mills and grid ball mills have basically the same structure, consisting of shells, feeding ends, discharging ends, main bearings as well as drive and lubrication system. Differences: Different structure of Feeding End. The main part of overflow ball mills’ feeding end is helical blade with the opposite rotation direction to the mills; while that of grid ball mills is grid plate. Different  Dischargin...

Ball mill and rod mill are used widely in plant and are compared by us. This text will analyze the two equipment in some aspect. The grinding theory. Though used different medium (steel ball and steel rod are contained in a ball mill and rod mill), the working theory of ball mill and rod mill are similar. When the shell moves, the medium in the shell is raised and down which has an impact on ore. Some medium may close to the tube wall of the shell which can grind the ore. After a long time grinding, the material is ground to the correct size. For details, the grinding theory of ball mill and rod are different in many ways. For the ball mill, the grinding force of steel ball to ore is less than the impact, because the contact area is small between balls and mineral. Thus, the throwing motion of ball can produce a large impact, but it needs a high rotate speed and has a higher power consumption. But for rod mill, the grinding effect is better which need a lower rotating speed and has a...

Now, heap leaching is a popular way to separate gold from ore. Gravity, flotation, amalgamation, cyaniding, resin in pulp, carbon plasma adsorption and dump leaching are commonly used in gold processing. When gold ore is covered by sulfide ore, it is hard for cyanide to react with gold ore within. Microbe could be used to dissolve sulfide cover for the following heap leaching stage. We will introduce the microbe mining processing method in this article. Moderate thermophile and thermophilic bacteria are the most commonly used microbes in leaching, such as Sulfur thermophilic bacillus, thermal oxide vulcanization coli, sulphur bacteria and thiobacillus ferrous oxide. These microbes obtain the energy they need in the metabolic process according to oxide sulfide ore. There are three types of microbe leaching: contact leaching mechanism, indirect leaching mechanism and collaboration leaching mechanism. Contact leaching mechanism: bacteria secrete EPS to absorb on the ore surface. In the...

According to their different discharging end,   ball mills   can be divided into three types:  grid type, overflow type and peripheral discharge type. In practice, peripheral discharge ball mills are rarely used; while grid ball mills and overflow ball mills are commonly adopted. If comparing the grid types and overflow types,  what are the common grounds and differences between them? Under what circumstances are grid ball mills a better choice? And overflow ball mills?  Here, we will give a brief introduction to you. Common Grounds: Overflow ball mills and grid ball mills have basically the same structure, consisting of shells, feeding ends, discharging ends, main bearings as well as drive and lubrication system. Differences: The different structure of Feeding End. The main part of overflow ball mills’ feeding end is helical blade with the opposite rotation direction to the mills; while that of grid ball mills is grid plate. Different  Discha...

The selection activity of ‘Shandong Good Man’ was co-organized in Shandong province by Propaganda Department of Shandong Provincial Party Committee and the Provincial Civilization Administration Office, Dazhong News Group, Shandong Federation of Trade Unions, the Group Provincial Party Committee, Provincial Women’s Federation and Shandong Broadcasting and Television Station, which was held to thoroughly implement the spirit of the Sixth Plenary Session of the 17th CPC Central Committee, push the normalization of the learn-from-Lei Feng activities, comprehensively promote the civic virtues construction and build ‘Moral Shandong’. Through the recommend of related departments and the comprehensive discussion of the Provincial Civilization Administration Office, as well as the widely solicit comments from the public by the media, Yantai Spiritual Civilization Construction Committee Office finally selected the ‘Yantai Good Man’ of the second season in 2018, including Yunlong Zhang, the...

Generally, the relationship between market supply and demand is mutually reinforcing. With the continuous development of the mineral processing industry in recent years, the demand for  mineral processing equipment   for is increasing greatly. A large number of mineral processing equipment emerges at the right moment, which makes the increasing competitiveness among manufacturers. As a common grinding equipment in the ore dressing process,   ball mill  plays a key role in improving the comprehensive recovery rate of ore. In order to stand out in the market competition and gain a firm foothold on the international stage, Xinhai keeps improving and optimizing its product structure, so as to develop the perfect ball mill that can satisfy various consumers’demands. Any product, only with the high quality, can win the market and obtain the recognition of consumer. As a manufacturer with more than 20 years, Xinhai is well aware of the importance of quality, so it s...

Copper and molybdenum are accompanying minerals. Almost over 20 percent molybdenum is recovered from copper and molybdenum. Copper and molybdenum ore, which are mainly copper ore, is existed as porphyry copper with high recovery value and low grade of molybdenum (0.01~0.1%). Copper in copper and molybdenum is existed mainly as CuFeS2, Cu2S, while molybdenum is existed as MoS2. Copper and molybdenum include preferential flotation , part combined flotation and combined flotation. Preferential flotation contains two processes: one is concentrate molybdenum first, while another is concentrate copper first. There are some shortcomings of preferential flotation: copper and molybdenum is hard to reactivated, flotation process is complex, flotation index is worse, and process cost is high. Copper and molybdenum flotation process is commonly used for copper and molybdenum ore with pretty high grade, while it’s rarely adopted in industrial production. In part combined flotation process, molyb...

XCF flotation cell   is one of the important means to realize the flotation process. Since the mid-1960s, China’s flotation cell has made considerable progress for 10 years. Nowadays, with the upsizing and high-efficiency of mechanical equipment, will XCF flotation cell usher in a new wave of development? The main design of XCF air inflation flotation cell totally avoids the disadvantages of the traditional air inflation flotation cell. In the design, XCF air inflation flotation cell adopts a new cone-shaped impeller technology, which can not only circulate the slurry, disperse air, but also suck the feeding ore from the outside of the tank. Therefore, it solves the problem that the traditional flotation cell can’t suck the slurry caused by the low-pressure air. In addition, the ladder configuration of flotation operation is changed to the plane configuration, which can remove the foam pump. This design improves many problems in traditional air inflation flotation cell caus...