Pilbara Minerals lifts Pilgangoora lithium resourceAustralian lithium producer Pilbara Minerals (ASX: PLS) has announced a 39% increase in the mineral resource at its 100%-owned Pilgangoora lithium-tantalum project in Western Australia’s Pilbara region to 308.9 million tonnes, reinforcing its position as the world’s most extensive hard-rock lithium operation.The updated mineral resource, which replaces the prior June 2020 estimate, now comprises 308.9 million tonnes grading 1.14% lithium oxide and 105 ppm tantalum pentoxide, containing 3.5 million tonnes of lithium and 71.7 million pounds of tantalum, respectively.Pilbara said that additional resources defined from the 2021 exploration program would expand the mining envelope and pit inventory of the combined South Pit areas, with potential for further growth with ongoing drilling.
The dewatering screen is mainly used for dewatering, desliming, and degrading. It can be used for sand washing in sand and gravel plants, coal slime recovery in coal preparation plants, and dry tailings of concentrators. Therefore, it is also called sand dewatering screen, mine dewatering screen, Coal slime dewatering screen, tailings dewatering screen, etc. Screening is a method of separating the particle group according to the particle size, specific gravity, electrification and magnetic properties. The equipment used for screening is screening equipment. Commonly used screens with different mesh sizes separate solid materials according to the required particle size.
Jaw crushers are divided into single pendulum and compound pendulum jawbreaker whose former is made into large and middle size with 3-6 reduction ratio and latter is generally made into middle and small size with up to ten times reduction ratio. Although the jaw crusher owns various structures, its working principle is all crushing materials by means of periodical motion of movable jaw. The structures of the jaw crusher is simple and mainly constituted by operating mechanism, drive mechanism, safety devices and lubricating system which are made of racks, movable jaws and fixed jaws. It is applied to mine, building materials, road-building, cement and chemical industries, crushing all kinds of ore and rock.
The crushing of ore is a process in which large ore or ore to be treated is crushed by overcoming the force between the inner parts with the help of external force, so that the particle size of ore is gradually reduced. In the concentrator, the crushing of ore is an essential material preparation stage before the separation operation. First of all, most of the ores processed by the concentrator are closely associated with gangue minerals, which are often fine-grained or even disseminated. Only by crushing and dissociating them, can they be enriched by the existing physical mineral processing methods. Secondly, all physical mineral processing methods are limited by the particle size. If the particle size is too coarse (useful minerals and gangues are not dissociated), or if the particle size is too fine (i.e. the over crushed is fine), they can not be effectively separated. In each link of concentrator, the basic task of ore crushing operation is to provide suitable materials for beneficiation operation. The quality of crushing process directly affects the technical and economic indicators of beneficiation.Factors affecting the production capacity of crusher:Hardness of material: The harder the material is, the more difficult it is to break. Moreover, the more serious the wear and tear of the equipment is. The speed of breaking is slow. Of course, the breaking capacity is small. This requires us to choose suitable materialsHumidity of material: That is, when the moisture content of the material is large, the material is easy to adhere in the crusher. It is also easy to block in the process of feeding and conveying, resulting in the reduction of crushing capacity. To solve this problem, first of all, the temperature of the material should be strictly controlled when selecting the material. If the temperature of the selected material is too high, the percentage of moisture in the material can be reduced by sunshine or air dryingFineness of material after crushing: The fineness requirement is high, that is, the finer the material is required to be crushed, the smaller the crushing capacity is. This depends on the specific requirements of the concentrator. If there is no special requirement, the fineness of the material is generally set to medium fineness.Material composition: Before crushing, the more fine powder contained in the material, the more the crushing will be affected. Because these fine powder are easy to adhere and affect the transportation, the material with more fine powder should be screened in advance. The fine powder should be screened out from the material as far as possible, so as not to affect the normal operation of the crusherViscosity of material: That is, the greater the viscosity of the material, the easier it is to adhere. The material with high viscosity will adhere to the inner wall of the crushing chamber in the crusher. If it can not be cleaned in time, it will seriously affect the working efficiency of the crusher. If it is serious, it will also affect the normal operation of the crusher. Therefore, when selecting the material, we must pay attention to that the viscosity of the material should not be too largeHardware device: The better the wear resistance of the crushing parts (hammer head and lining plate) of the crushing equipment, the greater the crushing capacity. If it is not wear-resistant, the crushing capacity will be affected. In this regard, the crushing parts of the crusher must be repaired regularly. If there is any damage or damage, it should be replaced in time, so as not to affect the normal work of the crusherToday, I would introduce four kinds of crushing equipment for you: jaw crusher, spring cone crusher, hammer crusher and counterattack crusher.Jaw CrusherOverview of principles:The periodic movement of the movable jaw around the fixed jaw, and the material located between the two jaw is squeezed to produce a crushing effect.Features:Deep cavity crushing ratio is large, cavity design is optimized, and high crushing efficiency;High speed of movable jaw and curved jaw plate design, and high production capacity.Range of use:Widely used in metallurgical mines, building materials, silicate and chemical industres. In the production of mineral processing industry, it is generally used for coarse and medium crushing of hard or medium hard ore.Spring Cone CrusherOverview of principles:The eccentric shaft sleeve is driven to rotate by the motor, and the movable eccentric cone and the fixed cone perform the swinging movement, thereby achieving the crushing purpose.Features:The moving cone is supported and suspended by spherical bearings;Water-proof and dust-proof device is adopted for long-lasting sealing.Range of use:Mainly used for medium and fine crushing of ore of various hardness.Hammer CrusherOverview of principles:It is mainly composed of parts such as frame, rotor, screen bar, hammer head and so on. The motor drives the rotor through the transmission belt, and the material is broken by the impact between the hammer and the material generated when the rotor rotates.Range of use:It is suitable for crushing materials such as coal, gypsum, alum, limestone, etc. Counterattack CrusherOverview of principles:Use impact energy to break materials. The rotor rotates at a high speed driven by the motor. The material entering from the feed port collides with the plate hammer on the rotor and is broken by the high-speed impact of the plate hammer. The crushed material is counterattacked on the lining plate and broken again and finally discharge granularity and material shape.Range of use:Metallurgy, mining, cement, chemical, refractories and ceramics and other industrial sectors, as well as highway construction, water conservancy engineering, construction crushed stones, machined sand processing and other fields.Our company can provide you with the above kinds of crushing equipment. If you have any demand for such equipment, you can send the parameters of material, hardness, feeding granularity, discharge size, processing capacity and voltage to us by email. We will try our best to provide you with satisfactory products.
We are not only mining solution provider but also end user. Rich experience to provide the most reasonable and high-quality solutions from the perspective of customers when providing services to customers.