The tantalum niobium process is the most important link in the entire production process of tantalum niobium concentrate products, and is a key department of tantalum niobium mining enterprises. Generally speaking, large tantalum niobium mining enterprises are resource enterprises that integrate mining, selection, and smelting. The process of separating tantalum niobium ore from useless minerals (usually referred to as gangue) or harmful minerals, or separating various useful minerals, is called beneficiation, also known as cleaning tantalum niobium ore. In the product, the tantalum niobium ore concentrate is rich in useful components; Those with abundant useless ingredients are called tailings; The content of useful components is between concentrate and tailings, and those that require further processing are called middlings. Choosing the water separation tantalum niobium process with tantalum niobium ore equipment can significantly improve the quality of tantalum niobium ore raw materials, reduce transportation costs, reduce further processing difficulties, reduce processing costs, and achieve comprehensive utilization of mineral raw materials. Due to the increasing scarcity of mineral resources in the world and the increasing utilization of lean and complex minerals, the amount of tantalum ore that requires water beneficiation treatment is increasing.
Tantalum niobium ore mainly consists of Tantalite and Columbite, as well as tantalite cassiterite, Microlite, tantalum niobium manganese ore, etc. Fragile and brittle in nature, with relatively fine embedded particle size, good conductivity and thermal conductivity, and stable chemical properties. The commonly used equipment for selecting tantalum and niobium ore currently includes gravity separation, magnetic separation, electrical separation, flotation, and chemical treatment. Due to the extremely low content of tantalum and niobium in the ore, it is generally necessary to perform rough selection first, followed by selection operations. The determination of tantalum niobium ore selection equipment and water separation tantalum niobium process is mainly based on the properties of the raw ore, including the density and hardness of various minerals in the ore, the embedding particle size and occurrence state of useful minerals, the physical and chemical properties and electromagnetic properties of various mineral surfaces, and the complexity of mineral composition. Fine grained tantalum niobium ore is commonly treated by flotation and combined processes. When there is tantalite, Pyrochlore, Calcite and Apatite in the raw ore, gangue minerals can be floated first, and then tantalite and Pyrochlore can be floated. The commonly used collectors for tantalum niobium ore flotation include fatty acids, arsonic acids, cationic collectors, etc. The gravity separation of tantalum niobium ore involves discarding most of the gangue minerals to obtain low-grade mixed coarse concentrate. Commonly used gravity separation equipment includes spiral concentrators, chutes, etc. This beneficiation method has the characteristics of high enrichment ratio, low production cost, less environmental pollution, and easy dehydration of the product.
Tantalum niobium beneficiation equipment Water separation Tantalum niobium technology focuses on the organic combination of beneficiation methods such as gravity, flotation, magnetism, electricity, chemistry, and manual beneficiation with resource adaptability. Technological development and upgrading of beneficiation equipment have been carried out, and many technical achievements have been achieved. For example, the separation and treatment of raw mud in stepped multi-level beneficiation, open circuit crushing and closed circuit crushing, the application of strong magnetic separation technology in medium ore grinding, high-frequency vibrating screen, rod mill closed circuit, rotary spiral groove rough selection, coarse mineral floating bed selection, fine mineral single cell flotation, etc., strengthen secondary mud recovery, and strengthen the comprehensive recovery of useful minerals such as tin, lithium mica, and feldspar powder.
The technical feature of tantalum niobium beneficiation equipment is the use of stage grinding and stage selection, which avoids excessive crushing of tantalum niobium minerals; The separation of mud and sand, separate treatment of raw mud and secondary mud, avoids the interference of coarse materials on the selection of useful minerals in fine particle sizes; Due to the large amount of secondary iron produced by grinding, magnetic separation can avoid the interference of a large proportion of iron on the selection of useful mineral tantalum and niobium, thereby improving the grade of tantalum and niobium concentrate and the recovery rate of tantalum and niobium beneficiation. After ore washing, the particle size of tantalum niobium ore is -0.2mm, and the primary fine mud is sent to the primary fine mud section for separate treatment. The raw mud is selected for tailings dewatering through a spiral classifier, and the returned mortar enters the grinding heavy section for processing. The overflow of the spiral classifier enters the paving chute for selection. After washing, the ore is crushed through a three stage closed circuit, and the crushed ore products enter the grinding and heavy processing section. A section of grinding consists of a rod mill and a high-frequency vibrating screen, with a particle size of -0 5mm, after iron removal, the grinding product enters the spiral classifier for classification, and the returned sand enters the coarse particle classification system to produce tantalum niobium concentrate and tailings; After concentration by the spiral classifier, the overflow of the spiral classifier is combined with the overflow of the spiral classifier, and - O 038mm tantalum niobium concentrate and tailings are selected separately after the material, overflow - O The 038mm material enters the secondary fine mud selection system. The second stage grinding is composed of a ball mill and a high-frequency fine screen, and the particle size of the second stage grinding product is -0.2mm; After removing iron from the secondary grinding product, it is produced by cyclone classification - O 2 0038mrn, - O Two particle sizes of 038mm, -0.2 0 The 038mm granular material enters the secondary selection system to produce tantalum niobium concentrate and tailings- The material with a particle size of 0.038mm enters the secondary fine mud system, is dehydrated by a thickener, and then enters a paving chute and a shaker for sorting, producing tantalum niobium concentrate and tailings.
Tantalum niobium ore slime is sometimes selected and purified using flotation method. However, in the first half of flotation, a small diameter cyclone or a centrifugal concentrator is used for preliminary desliming, and then alkyl sulfonated succinic acid is used as a capture agent, Sodium metasilicate and oxalic acid as regulators for PH2 flotation operation. The flotation concentrate uses a Holman slime shaker horizontal belt chute; Alternatively, styrene phosphonic acid is used as the capture agent, and Sodium fluorosilicate and nitrate are used as the regulators PH6. Flotation, flotation concentrate vibration belt chute or cross flow belt chute. According to the above method, Tantalite or Columbite concentrate can be obtained. The main feature of the tantalum niobium ore slurry flotation process is high selection indicators, but the tantalum niobium content in the removed fine mud is mostly close to the original ore grade, with high drug consumption and production costs.
The selection of tantalum niobium water separation process with rotating spiral grooves as the main body has replaced the traditional coarse separation process, which is a major innovation in the coarse separation process of tantalum niobium ore gravity concentration plants. Eliminating the classification operation of locking, difficult operation, maintenance, and poor classification effect, greatly simplifying the rough selection process, greatly improving the recovery rate of tantalum and niobium, saving 50% of factory area and 70% of production water. The economic benefits are very significant. This new technology also has the advantages of stable and reliable production, convenient operation, convenient management, and is conducive to civilized production, and is well received by operators. By using the process of spiral chute cleaning and double selection shaking table, tantalum and niobium were recovered from low-grade primary tantalum and niobium ore slime. The yield of tantalum and niobium concentrate was 0.019%, and the grade was 29. The closed circuit recovery rate could reach 410%. 44%, achieving effective recovery of fine-grained tantalum and niobium ore. The magnetic separation process of tantalum niobium ore is selected based on the magnetic difference of tantalum niobium ore. The commonly used beneficiation equipment is a tantalum niobium ore strong magnetic machine, which has a simple structure, high magnetic field strength, stability, convenient use, and maintenance.
As a professional manufacturer of spare parts, we continuously develop new products. At present, the selection of 6mm mineral materials for the horizontal automatic discharge centrifuge of tantalum niobium ore developed and produced can be effectively selected. It has performed well in tantalum niobium ore dressing plants (traditional Nielsen centrifuges cannot do it) and can achieve PLC automatic control of discharge. The operation is simple and has the following characteristics:
1. The beneficiation enrichment ratio is high, usually up to 10000-3000 times, and the recovery rate is significantly higher than that of conventional tantalum niobium ore equipment.
2. The beneficiation process is stable and reliable, and the discharge and recovery of concentrate can be achieved without the need for shutdown.
3. High degree of automation, high equipment operation rate, convenient operation and management, fewer operators, low daily maintenance of equipment, low production costs, good wear resistance of vulnerable parts, and simple maintenance.
4. Do not add any chemical substances to protect the environment.
5. Compact design, small footprint, and easy integration into existing beneficiation production lines. In order to apply tantalum niobium ore, it is necessary to sort and extract it, and select a suitable water separation tantalum niobium process. Firstly, it is necessary to conduct ore testing analysis and beneficiation experiments, and then decide whether to invest based on the calculation of ore washability and cost-benefit, in order to reduce investment risks. There are professional laboratories and mineral processing test prototypes. Experienced mineral processing engineers provide you with mineral processing test analysis to help you understand the profit value of mineral processing analysis. Welcome to conduct beneficiation experiments.
