Engineering Blog Updates

Posted: April 28, 2022

Lead and zinc are one of the earliest metals extracted by humans from lead-zinc ore. They are widely used in the electrical industry, machinery industry, military industry, metallurgical industry, chemical industry, light industry and pharmaceutical industry and so on. In addition, lead metal also has many uses in the nuclear industry, petroleum industry and other sectors. In the lead-zinc ore, there are 11 kinds of lead industrial minerals and 6 kinds of zinc industrial minerals, among which…

Posted: April 18, 2022

Fluorite is commercially named fluorspar composed of calcium fluoride (CaF2). It is the principal source of fluorine. The same is used in the production of hydrofluoric acid, which is used in a wide variety of industrial applications including glass etching. Fluorite tends to occur in well-formed isometric crystals, forming cubes and octahedrons. It also occurs in both massive and earthy forms, and as crusts or globular aggregates with a radial fibrous texture. 1 Grinding size (i.e. grinding…

Posted: March 30, 2022

Brief history of extracting tin from tin ores In nature, the tin ore are existing in sand or alluvial raw material, this kind of tin ore is called sand tin or alluvial tin , those raw materials may be stone, sand, gravel, soil, sticky clay, some times with other magnetic iron, tungsten, ilmenite, hematite, monazite, zircon sand and other minerals. The other type of tin ore is hard rock tin ore, this form of tin is existing in hard rock, such as normal stone, quartz veins above the land. The…

Posted: March 15, 2022

The magnetic separation process is mainly to carry out a three-stage magnetic separation treatment on the ore powder and then go through the wet material magnetic separation. The finished iron ore concentrate powder is obtained. Generally, the iron content of the ore is 35%. After magnetic separation by this method, the iron content of the iron concentrate powder can reach 68-70%. In the combined process method, the utilization rate of ore can reach 90%, the water consumption in the process is…

Posted: March 04, 2022

Tantalum and niobium ore beneficiation coarse separation is usually used the gravity separation method, also, the flotation, electromagnetic selection and electrometallurgical separation are used in a combined process, when dealing with powder or primary mud content of ore, washing and scrubber operations are essential, while the use of high-efficiency grinding and classification equipment to reduce the mud of tantalum and niobium minerals.  In flotation processing, the commonly used trapping…

Posted: February 14, 2022

Coal dust , the roar of machines , and the hard work of workers , these * *traditional coal mining **  scenes have become history in some coal mines in China. At present, the mining industry has become one of the most widely used fields of " _ 5G + Industrial Internet _ ". According to statistics, there are about 5,300 coal mines in China, covering a wide range of areas. The mining conditions are complex and changeable. Disasters such as outbursts of kerosene and gas, rock bursts, water, and…

Posted: January 10, 2022

The beneficiation process of quartz sand is mainly impurity removal and purification. To remove a small or slight amount of impurities in quartz sand and obtain a highly difficult separation technology of refined quartz sand or high-purity quartz sand. The quartz sand process mainly includes quartz sand impurity analysis and impurity removal process, quartz sand purification process, etc. Process And Equipment for Impurity Analysis And Removal of Quartz Sand The impurity analysis process of…

Posted: December 29, 2021

The number of stages of the flotation process When determining the flotation process, the principle process (also known as the backbone process) should be determined first. The principle process only points out the principle scheme of the sorting process, which includes the number of separation stages, the sorting order of the components to be recovered, and the number of sorting cycles. What’s the number of stages of the flotation process? It is the number of times the processed material is…

Posted: November 19, 2021

The adjustment of flotation pulp includes pulp depth, PH value, etc., The depth and PH value will affect the flotation effect. In the flotation process, pH value has many effects on mineral flotation and is an important factor affecting flotation indexes. Following we will discuss the adjustment of pulp depth and PH value. Pulp Depth Slurry depth refers to the weight or series of solid minerals and liquid (water) in the slurry. Concentrators usually express the ratio of liquid to solid or solid…

Posted: October 16, 2021

There are more than ten kinds of tin-bearing mineral deposits. At present, tin used in industry mainly comes from cassiterite. Because the density of cassiterite is relatively high (6.4~7.1g/cm3), the primary method of beneficiation of cassiterite is reselection. However, because cassiterite is brittle, it is simply siltified in nature and in the process of crushing, grinding, and beneficiation. Therefore, it is of great significance to recover the fine-grained cassiterite from the fine mud and…

Posted: September 17, 2021

Study on Knelson Concentrator Gravity Separation of a Polymetallic Ore Bearing Gold The major methods of recovering gold are gravity separation, gold flotation, cyanide. In fact, traditional gravity separators, such as jig machine, spiral chute, gold shaker table, have the shortages of low beneficiation ratio and low productivity . In addition, the flotation process is difficult to work on the coarse grain gold minerals which with heavy density.  Considering environmental protection, the…

Posted: September 04, 2021

For tin mining equipment and beneficiation EPC solution, you can find in here Tin is a metal element, ordinary white tin is a low melting point metal with silver white luster. It is divalent or tetravalent in the compound and will not be oxidized by air at room temperature. In nature, tin is mainly composed of dioxide (cassiterite).  And various sulfides (such as sulphur cassiterite). Tin is one of the most famous metall of human history, followed by gold, silver, copper, iron, its history can…

Posted: August 13, 2021

Grinding and classification process Ball mill and rod mill process [ caption id="attachment_5642" align="alignright" ] ball mill [ /caption ] For beneficiation, one or two-stage grinding can economically grind the ore to any particle size required for beneficiation. The grinding of more than two stages is usually determined by the requirements of the selection of the stages. Compared with the two-stage process, the main advantages of the one-stage grinding process are: less equipment, low…

Posted: August 06, 2021

The process flow of the manganese ore processing plant is based on the results obtained from laboratory ore dressing tests and industry tests. The magnetic separation process with 1 070 mm × 4 600 mm tank-type ore washing machine has a good effect. 1 Main equipment of manganese ore process plant The main manganese mining equipment is 2 sets of PE400 mm×600 mm jaw crusher, 2 sets of CXK1 600 mm×7 630 mm tank washing machine, 2 sets of ZD150 mining single-shaft vibrating screen, FG -12 high…

Posted: July 29, 2021

How to identify the mining equipment quality and price Due to the large-scale development and use of mineral resources, the available resources are reduced, resulting in a decline in the grade of raw ore mining, and the progressed processing of smelting and other qualification requirements for mineral processing products is also increasing. At the same time, human environmental awareness is growing. These realities have placed increasing demands on beneficiation equipment, prompting the…

Posted: July 16, 2021

What is a dewatering screen? What types of dewatering screens are there? The dewatering screen is mainly used for dewatering, desliming, and degrading. It can be used for sand washing in sand and gravel plants, coal slurry recovery in coal preparation plants, or dry tailings of concentrators, etc., so it is also called sand dewatering screen and mine dewatering screens, slime dewatering screens, tailings dewatering screens, high-frequency dewatering screens, etc. What are the commonly used sand…

Posted: June 11, 2021

Overview The beneficiation processing of molybdenum ore is mainly performed by flotation, and the recovered molybdenum mineral is molybdenite(MoS2). Sometimes in order to improve the quality of molybdenum concentrate and remove impurities, the concentrated molybdenite would be subjected to a further step of chemical beneficiation processing. Introduction of molybdenite Molybedenite’s chemical composition with a high molybdenum content, it is the most important mineral raw material for extracting…

Posted: February 15, 2020

The mining and metals industry is recovering from the most challenging period in decades. Market fluctuations and declining commodity prices have become a new normal. In this case, cutting costs, automating, and improving operational efficiency are critical. At the same time, industry-specific issues related to regulation, geopolitical risks, legal restrictions on the use of natural resources, stakeholder activism, and strict public oversight pose additional challenges. We believe that the…

Posted: December 19, 2019

Introduction Minerals are mostly substances formed naturally in the Earth.  They have a definite chemical composition and structure. Overall there are over 3000 minerals we knowns nowadays, and some are rare and precious such as gold and diamond( actually diamonds are likely the most common gem in nature ), while others are more ordinary, such as quartz. When we talk about the minerals found on the Earth we are talking about those that are found in the Earth's crust, the only part of the Earth…

Posted: December 10, 2019

What is a crusher? A crusher is a machine that is designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size of materials, or change the form of waste materials so they can be more easily disposed of or recycled, or to reduce the size of a solid mix of raw materials so that pieces of different composition can be easy for next step separation. Understanding the different so you can achieve the maximum efficiency As an old Chinese saying goes…

Posted: December 06, 2019

Description Amphibolite is a dark, heavy, metamorphic rock composed mostly of the mineral amphibole. Amphibolites have very little to no quartz. “Amphibole” refers not to a single mineral, but a group of minerals. Most belong to the monoclinic crystal system, but some belong to the orthorhombic crystal system. They are silicate minerals containing SiO4 molecules. The SiO4 groups are connected to double chains. Relation to Mining Because aluminum metal reacts with water and air to form powdery…

Posted: November 19, 2019

How you select the best primary crusher from all of the available primary crushers is required a great deal of design based on the mining plan and operation input. Usually, capacity, feed size, product size, rock compressive strength, abrasion index and mobility of crusher are considering as criteria, and in practice usage, gyratory, double toggle jaw crusher, single toggle jaw crusher, high-speed roll crusher, low-speed sizer, impactor crusher, hammer crusher and feeder breaker crushers are…

Posted: November 09, 2019

Extract gold from its ore has a long history in our human history, which can be dating back to sometime around 6000-3000 BC. And we may still remember some notable Gold Rushes in recent centuries. In the modern mining industry, washing and extracting gold is not a one-off process. It needs some significant washing process and steps, and it’s washing processes is determined by the type and grade of gold mines. JXSC mine machinery factory with more than 20 years of practical experience of…

Posted: August 26, 2019

Description Aluminum is the most abundant metal element in the Earth’s crust. Bauxite ore is the main source of aluminum and contains the aluminum minerals gibbsite, boehmite, and diaspore. Aluminum is used in the United States in packaging, transportation, and building. Because it is a mixture of minerals, bauxite itself is a rock, not a mineral. Bauxite is reddish-brown, white, tan, and tan-yellow. It is dull to earthy in luster and can look like clay or soil. Relation to Mining Because…

Posted: August 13, 2019

How mineral processing technology can do better environment protection? wastewater, metal iron, chemistry and so on. With the rapid development of the economy, the damage caused by human beings to nature has become more and more serious, and the situation in which people and nature live in harmony has gradually been broken. The mineral processing industry is very polluting to the environment. The establishment of green mines is the only correct direction for the future development of the mining…

Posted: August 07, 2019

According to MiningWeekly, drilling and sampling analysis confirmed that the Kamoa-Kakula copper project in the Democratic Republic of Congo has further extended the northward extension of Kamoa-Kakula, which is a massive sulphide deposit. , buried shallow, thick. Recent drilling revealed that the copper-rich mineralization of Kamoa-Kakula North extends at least 350 meters along the strike and has a width of at least 60 meters. Sampling analysis of the newly discovered area showed that the…

Posted: August 05, 2019

Improved Wilfley Table 6-s shaking table, also known as the mineral table, the FRP shaker table, is a gravity beneficiation device whose rod type table head and fixed axis type slope adjustment mechanism. Its structure is developed and improved from the Wilfley table . Table Structure Main parts: table surface, frame, and transmission device. The supporting device and the angle adjust mechanism of the shaker machine surface are all placed on the frame. The bed surface is supported by four plate…

Posted: August 03, 2019

Lime is a low-cost item that is widely used in gold beneficiation plants. The following is a systematic description of lime properties, its role in flotation, cyanidation, amalgamation and other mining operations, for your reference. 1 Lime properties Lime (CaO), also known as quick lime, which is obtained by calcining limestone (CaCO3) at 900~1200 °C. CaCO3→CaO + CO2↑ Lime has strong water absorption, and reacts with water to become calcium hydroxide (Ca(OH)2), commonly known as slaked lime or…

Posted: July 31, 2019

Gold ore has high mining value. From a certain perspective, gold ore beneficiation is one of the most selective and most complex types of mineral processing. Here are 10 kinds of gold processing flow design, mercury amalgamation, heap leaching, cyanide process, gravity separation, flotation, etc. That's would be grateful if it can do a favor for you. 1. Mercury amalgamation process gold 2 . Gold heap leaching 3 . Gold gravity separation process 4. Gold flotation process 5 . Extraction of…

Posted: July 10, 2019

Description of Permanent drum magnetic separator The dry type permanent drum magnet magnetic separator is a magnetic pre-separation device for magnetite ore, mainly deployed in the pre-selection stage before the fine crushing or grinding process to removes gangue and surrounding rock, tailings discharging rate is about 10 %. Processing material : Coarse-grained magnetic mineral Capacity : 20-600t/h Enhancement : wear-resistant rubber to protect the cylinder body. Features : Wide feed size…

Posted: July 09, 2019

1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of sulfur is pyrite. (3) Copper pyrite ore Except for the copper minerals, pyrite and magnetite are worth recovering. Many of the skarn…

Posted: July 09, 2019

Types and distribution of copper ore in the world There are various types of copper mineralization, according to the geology-industrial types, which can be divided into: : (1) porphyry type, (2) sand shale type, (3) copper-nickel sulfide type, (4) pyrite type, (5) copper-uranium-gold type, (6) natural copper type, (6) 7) vein type (8) carbonate rock type, (9) skarn type 1 Porphyry-type The porphyry copper deposit has a large reserve and can be exploited by large-scale mechanized open-pit mining…

Posted: July 05, 2019

What's zircon ore? Zircon (also known as azorite) is zirconium orthosilicate, and its chemical formula is ZrSiO4, which is the most common type of zirconium-containing minerals. Most of the zircon deposits are seashore sand mines. Placer containing zircon, usually associate with magnetite, ilmenite, rutile, and monazite, etc. Generally, at the same time of selecting zircon, these placer minerals were also recovered as target minerals. Zircon applications Zircon is mainly used as a raw…

Posted: July 04, 2019

Extraction of tungsten Tungsten ore processing, that is separation and beneficiation of tungsten minerals from tungsten bearing ores. Tungsten concentrates are sent to smelters to refine the metals tungsten, tungsten carbide, tungsten alloys and tungsten compounds, while tungsten middlings is chemically treated to produce synthetic scheelite, ammonium paratungstate, tungsten powder and tungsten carbide. Minerals and Resources There are more than 30 kinds of tungsten minerals in nature, but…

Posted: May 15, 2019

Study of Chrome Ore Magnetic Separation and Gravity Separation Process The chrome ore beneficiation processes include gravity separation, flotation, magnetoelectric separation and chemical beneficiation, etc. Because of the chrome ore composition that composed of one or more silicate, and the density difference between the chrome and silicate, the research both in home and aboard about chrome beneficiation process mainly focuses on the gravity separation process. However, using a single…

Posted: May 14, 2019

Rutile Titanium Flotation Processing Description of titanium and rutile Rutile deposit can be divided into metasediment, eclogite, hydrothermal alteration, metamorphic altered rock and weathering-sedimentation. Natural rutile is the high-quality raw material for producing titanium dioxide, titanium sponge, titanium tetrachloride series products. The high-grade titanium dioxide, the product of rutile, has excellent indexes such as strong whitening ability, high dispersibility, chemical property…

Posted: May 13, 2019

Russian Diamond mining and ore beneficiation Background Diamonds, originally a carbon lattice formed in high temperature and high-pressure environment in the earth's mantle, came to the surface with kimberlite magma during volcanic eruptions millions of years ago. This mineral, which is of little industrial value, should have been just a kind of gemstone, becoming a decoration for a lady, expensive owing to its scarcity. But with the discovery of large diamond mines in South Africa in 187…

Posted: May 10, 2019

Factors Influence Ore Grinding Mill Efficiency Abstract The grinding efficiency is the most important parameter to evaluate machine performance. This article discussed the factors that influence grinding efficiency including article size to mill machine，milling medium，slurry rheological properties，underflow ratio，liner，grinding aid etc. The mill machine should be automatically controlled at a high level. the ball mill machine price Ore grinding is a very important section in concentrators, which…

Posted: May 09, 2019

Hydrocyclone is a grading device that uses centrifugal force to accelerate ore particle deposition. It needs the pressure to feed ore, so it consumes a lot of power but occupies a small area, cheap, the processing capacity is large, The classification efficiency is high, obtain very fine overflow product, mostly used in the second stage of closed-circuit grinding classification equipment. Hydrocyclone is mainly used in mineral processing for: ① Heavy medium cyclone is a common heavy medium…

Posted: May 09, 2019

Silver Ore Type and Mineral Deposit in the World Abstract The world mineral resources of silver ores are mainly located in Russia, Mexico, Canada, USA, Australia and Peru. major silver deposits can be grouped as following types: (1) epithermal vein silver, related to the Mesozoic and Cenozoic volcanic ore and subvolcanic rocks, (2) porphyry silver type; (3) silver bearing massive sulfide deposit in volcanic rocks; (4) sedimentary type silver bearing polymetallic deposit; (5) sedimentary…

Posted: March 20, 2019

This paper introduces the extraction of nickel process and characteristics of laterite nickel ore dressing, highlights the nickel ore crushing, washing in the nickel production process design. 1 Description of nickel ore The laterite nickel ore is complex in composition and can be roughly divided into two types: limonite type and silicon magnesium-nickel type. The main elements are nickel, cobalt and manganese. The laterite mining method generally uses open-pit mining. The ore body generally…

Posted: March 04, 2019

In the production of the diamond plant, heavy medium separation / dense medium separation processing technology is very important, directly related to energy utilization, resource conservation, and production efficiency, considered to be one of the most effective methods of gravity separation . DMS technology can be used for coal washing and separation of diamonds and other precious stones, recovery of gold and platinum group metal (PGM), and treatment of copper, lead, zinc and other metal…

Posted: February 28, 2019

The Ways of Increasing Gold Recovery Rate The recovery rate of placer gold is an important index to measure the technical level and economic effect of Placer Gold Mine. It is an important aspect that can not be ignored to maximize the recovery of gold from ore. At present, there are many problems in gold placer production, such as Gold Dredger and on-shore concentrator, which lead to heavy loss of gold. 1. Causes of loss of placer gold 1.1 Loss of gold before and during mining The metallogenic…