Film hanging cone concentrator

"Vibration hanging tapered concentrator" is loosely based on the theory developed from the principle and mineral Bagnold shear flow micro-fine novel membrane device reselection. When the evenly mixed slurry enters the primary surface of the disk surface from the ore feeder at the center of the sorting cone, the slurry flow spreads into a fan shape and spreads to the periphery. During the flow, the flow film gradually becomes thinner and the flow rate gradually decreases. reduce. The ore group is moderately loose and layered on the disk surface under the action of the shear repulsion generated by its own gravity and the vibration of the cycle. The rotation of the conical disc brings minerals of different densities into the tailings tank, the middle ore tank and the concentrate tank. Thereby an effective separation of minerals is achieved. The distribution of the ore layer on the sorting cone conforms to the structure of the laminar slurry film. The uppermost surface layer is mainly light mineral with small particle size and low density. The pulsation speed of this layer is not large, and its value roughly determines the particle size recovery. At the lower limit, most of the suspended ore particles are discharged into the tailings tank in the rough selected area. The intermediate rheological layer consists mainly of heavy minerals with small particle size and high density and light minerals with large particle size and low density. The thickness of this layer is the largest and the Begonau force is also the strongest. Since the layer is densely populated and there is no large vertical medium flow velocity interference, the stratification can be performed under static conditions, so the rheological layer is a more effective region layered by density. As the equipment rotates, some of the minerals are discharged into the middle ore tank under the sorting action of the washing water in the middle mining area. The lowermost sedimentary layer is mainly heavy mineral with high density. The particle size distribution is close to the top of the cone and the finer the particle size. The fine-grained and fine-grained heavy minerals of this layer are easily attached to the sorting surface and are not easily taken away by the slurry flow. Therefore, when the equipment is operated to the concentrate area, the concentrate can be obtained by the action of the flushing water. The "suspension cone cone concentrator" is a new type of fine particle re-election equipment developed based on the Begno shearing loose theory and the flow film beneficiation principle. Particularly applicable to -37 micrometers to 19 micrometers (400 to 800 mesh) in the range of micro-fine mineral sorting, such as tungsten, tin, tantalum, niobium, lead, zinc, titanium and other non-ferrous metals and ferrous metals iron, manganese, Chromium , high enrichment ratio. In actual production, it can be used in various new and old tailings to recover valuable metal minerals.

â–¶ Application case

(1) Yunnan Mengzi Mining Co., Ltd.

At present, the large-scale industrial application of the tailings treatment process consisting of 68 sets of cantilever cone beneficiation units with a diameter of 4 meters has been completed and put into operation for more than one year in Yunnan Mengzi Mining and Metallurgy Concentrator. Since the production has been put into production, the ideal efficiency has been achieved. The actual production consumption is less than 0.7 kWh. Compared with the slime shaker, the treatment capacity of the 4 m diameter suspension cone cone concentrator is 8 to 10 times that of the mud shaker. The recovery rate of 19 micron (800 mesh) grain size tin ore is more than 10% higher than that of the mud shaker. At present, the hanging vibrating cone concentrator industrial machine with a diameter of 4 meters is treated in the processing plant of the concentrator of Yunnan Mengzi Mining and Metallurgy Co., Ltd. with a daily processing capacity of about 2,500 tons (the tin grade is 0.1-0.3%). After the selection of the hanging cone cone concentrator, the tin grade is 3%, the enrichment ratio is more than 10 times, the operation recovery rate is over 70%, and the annual recovery of tin is more than 60 million yuan.

(2) Guangxi Huaxi Group Phoenix Mountain Plant tailings

Two different tailings of Fenghuangshan Plant were tested by industrial prototype with a diameter of 3 meters. The No. 1 sample was a fine mud multi-line shaker tailings with a tin grade of 0.19%. The No. 2 sample was undesulfurized by the whole plant. Fine mud, tin grade is 0.43%. When the ore amount is 12 tons/day, both test samples have obtained satisfactory indexes, and the enrichment ratio of concentrate produced can reach more than 10 times, the recovery rate is over 40%, and -37 microns to 19 microns (400-800). The particle size recovery rate is over 80%. Compared to the slime shaker, the suspension cone cone concentrator has a recovery rate of at least 10 percentage points for the -19 micron (800 mesh) fraction.

(3) Yunnan Dahongshan Iron Mine tailings

The test sample contained an iron grade of 20% and a -37 micron (400 mesh) particle size of more than 50% of the total ore. After the equipment was selected at one time, the iron concentrate with a grade of 57% was produced, and the recovery rate was 40%.

(4) Yunnan Dongchuan Yinmin Town Iron Ore Plant

The industrial machine with a diameter of 4 meters is in the industrial single machine test of the Changfengyuan concentrator in Dongchuan, Dongchuan. The tailings iron ore grade after the shaker treatment is 26%. After the suspension cone cone concentrator, the grade is selected. Up to 60% of iron concentrate. Among them, a single equipment processes 38 tons of iron ore tailings per day and recovers 1.5 tons of iron concentrate.

â–¶ Application prospects

The characteristics of China's mineral resources are poor, fine and miscellaneous, that is, the associated minerals and poor ore are difficult to select, the ore natural grade is low, and the single large deposit is less. Due to the production technology level and management mechanism, mining and selection technology, processing technology and equipment are relatively backward, the recovery rate of mineral resources is low, and the amount of waste generated per unit of mineral products is large, resulting in serious waste of development and utilization of mineral resources in China. There are a large number of tailings at home and abroad. Most of these tailings contain considerable amounts of metals and high-value minerals such as gold, silver , tin, iron, copper , antimony , zinc oxide and lead oxide. For example, more than 200 tons of tailings are stored in more than 30 tailings ponds in Yunxi; there are tens of millions of tons of tailings in Guangxi Nandan.

The total amount of tailings in China has now exceeded 10 billion tons. As a highly targeted product, the “suspension cone cone concentrator” is unique, unique and reliable in the world, and represents the most advanced technology level in the re-election industry.

It has the following application advantages:

1. High environmental protection index: It belongs to the gravity ore dressing equipment under the condition of composite force field. It is different from flotation and does not depend on chemical agents, so it will not cause environmental pollution, but it can improve the ecological environment;

2, wide application space: can be used for the separation of fine-grained minerals with different specific gravity, especially minerals in oxidation or partial oxidation, with wide application space;

3. Low energy consumption: The power of the industrial machine with a diameter of 4 meters is about 0.7 kW, and the amount of washing water used for sorting is small, which can greatly reduce the energy cost of the concentrator;

4. Large processing capacity: The processing capacity of the suspended cone coning concentrator is more than 10 times that of the traditional slime shaker. Each industrial machine with a diameter of 4 meters handles tungsten, tin, antimony, bismuth, lead, zinc, titanium, etc. Metal minerals, the daily processing capacity is about 25 tons; the treatment of iron, manganese and other ferrous minerals is about 40 tons; 5, the selected grain size width: -100 microns (150 mesh) can be selected without classification, the index is stable, and the auxiliary facilities are reduced. Infrastructure investment;

6. Small capital investment: The equipment has low vibration and simple installation, which can greatly reduce capital investment.

Suspended Cone Concentrator Applied in Yunnan Mengzi Mining Company

Suspended Cone Concentrator Used in Guangxi Huaxi Group Phoenix Mountain Plant