Custom Mining Agitation Tank Manufacturers

In which links are the agitation tanks mainly used in the mineral processing process

In the modern mining mineral processing process, the mining agitation tank, as a basic and key equipment, plays a vital role in improving the slurry mixing efficiency, strengthening the reagent reaction, optimizing the flotation and leaching effects. With the development of technology and the refinement of the process, the structural form and application scenarios of the agitation tank are becoming more and more diversified. In this context, Zhejiang Golden Machinery Factory, relying on its deep R&D foundation and rich practical experience, has provided the industry with a systematic agitation equipment solution and played an important role in many national key projects.
Application of the agitation tank in the main links of the mineral processing process
In mineral processing operations, the agitation tank is mainly used in the following key processes:
1. Reagent preparation and slurry pretreatment
The agitation tank was originally usually used for the full mixing of reagents and slurry. Before the flotation process begins, the ore is crushed and ground to form a slurry of a certain concentration. At this time, various flotation reagents (such as collectors, frothers, adjusters, etc.) need to be fully mixed with the slurry to make its surface chemical properties meet the flotation requirements. The high shear force and circulating flow of the mining agitation tank can significantly improve the uniformity of reagent distribution and the surface modification effect of the ore particles.
2. Pre-flotation mining agitation tank (Conditioning Tank)
Before flotation, a slurry mining agitation tank or conditioning tank is usually set up to further adjust the pH value, ion concentration and reagent reaction time of the slurry. The mining agitation tank at this stage is required to provide stable stirring force and a good reaction environment to prevent precipitation, agglomeration and reagent drift, and ensure the stability of the flotation process. The series of slurry mining agitation tank equipment independently developed by Zhejiang Golden Machinery Factory has been widely used in metal ore flotation lines, especially in the treatment of non-ferrous metals and refractory minerals.
3. Cyanide leaching and stirring leaching
For precious metal ores such as gold and silver mines, cyanide leaching is an important extraction method. In this process, the stirring tank is often used as a cyanide leaching reactor, oxygen and cyanide are introduced into the slurry, and the dissolution and diffusion of precious metals are achieved through continuous stirring. At this time, the stirring tank must not only ensure full contact between the reactants, but also take into account the characteristics of corrosion protection and gas escape prevention. The corrosion-resistant leaching agitator specially developed by Zhejiang Golden Machinery Factory has shown high efficiency and high stability in multiple cyanide gold extraction projects, becoming one of the preferred equipment in this link.
4. Slurry concentration and re-mixing
Before tailings treatment or high-concentration slurry transportation, the slurry is often required to be re-mixed, diluted or homogenized to ensure smooth pumping or stable tailings treatment. At this time, the agitator plays a role in preventing particle sedimentation and enhancing slurry fluidity. Especially in large tailings ponds or salt lake potash fertilizer concentration processes, higher requirements are placed on large-volume, low-energy mixing systems. The large-scale agitator system independently developed by Zhejiang Golden Machinery Factory serves national-level projects such as Qinghai Salt Lake and East Tibet Potash, fully demonstrating its comprehensive capabilities in engineering-level equipment manufacturing.
Technical advantages and industry contributions of Zhejiang Golden Machinery Factory
Zhejiang Golden Machinery Factory (the former Zhuji Nonferrous Metallurgical Machinery Complex Factory) is located in Zhuji City, Zhejiang Province, the hinterland of the Yangtze River Delta, where China's economy is active. The company has more than 200 sets of advanced processing and testing equipment, strictly implements the ISO9001:2008 quality management system, and has the capacity to produce 25,000 tons of metal structural parts annually.
In the field of mixing equipment, Zhejiang Golden Machinery Factory has formed a full-process service capability from R&D design, structural optimization to on-site installation and commissioning after decades of technical accumulation. Especially in special application fields such as hydrometallurgy, flotation engineering, and potassium salt concentration, the company provides not only standard equipment, but also customized integrated solutions on demand. In recent years, the company has also actively promoted the intelligent upgrading of equipment, introduced cutting-edge means such as variable frequency speed regulation, liquid level feedback control, and wear-resistant lining technology, which significantly improved the adaptability and operation stability of the mining agitation tank in complex mineral processing environments.
In addition, Zhejiang Golden Machinery Factory has provided mixing equipment and system solutions for national key enterprises such as Western Mining, Zijin Mining, Salt Lake Co., Ltd., Yuguang Gold and Lead, Jiangxi Copper, and Tongling Nonferrous Metals. The products are exported to international markets such as Asia, Africa, the United States, and Australia, and the technology and quality are well received.

What methods can be used to improve the uniformity of slurry mixing in the mining agitation tank?

Optimizing the structural design of the agitator: from the blade to the flow guide system
The primary factor affecting the uniformity of slurry mixing in the mining agitation tank is the structural design of the agitator itself. Zhejiang Golden Machinery Factory has found in the long-term equipment manufacturing and on-site commissioning practice that different blade structures have significant differences in flow field control and material distribution.
In order to improve the mixing efficiency, the company's R&D team has modeled and simulated various blade structures such as plug flow, anchor, turbine, and inclined blade spiral, and finally determined a composite mixing structure suitable for different slurry viscosities and particle distribution characteristics. By increasing the radial and axial flow channels, the impeller can form up and down convection and annular circulation during operation, effectively avoiding "dead corners" and slurry precipitation, thereby improving mixing uniformity.
In addition, the company has introduced built-in guide tubes and annular spoilers in some models of mining agitation tanks to guide the slurry to form an ideal flow path and enhance the collision, diffusion and reaction of materials and reagents.
Controlling stirring power and speed: achieving dynamic optimization operation
In the design of the mixing system, excessive stirring intensity can easily lead to the crushing of ore particles and increase energy consumption; too low intensity can cause slurry stratification and reduced reaction efficiency. Zhejiang Golden Machinery Factory provides users with variable frequency speed-adjustable stirring systems through intelligent calculation of key parameters such as stirring power, impeller diameter, and speed ratio. This system can dynamically adjust the stirring speed according to the viscosity, concentration, and particle size characteristics of different slurries to achieve a two-way balance between energy consumption and mixing uniformity.
For example, in the slurry adjustment stage before flotation, high-speed mixing can be used to promote the distribution of reagents in the early stage, and then medium and low speed operation can be entered to maintain the stability of the flow field to prevent excessive foam crushing or slurry swirling. This operation strategy has achieved remarkable results in many large domestic projects served by Zhejiang Golden Machinery Factory, such as Zijin Mining, Jiangxi Copper, Salt Lake Potash Fertilizer, etc., and users have given excellent feedback on site.
Multi-stage series mixing process: uniformity is amplified layer by layer
When processing high-grade or difficult-to-select ores, it is difficult to achieve sufficient reaction uniformity with only a single stirring tank. Zhejiang Golden Machinery Factory proposed a "multi-stage series mixing system" solution, which is usually composed of three to five mining agitation tanks in series. By setting different mixing intensities, reaction times and reagent addition points in different tanks, the mixing effect is promoted layer by layer, and intermediate slurry sampling and detection points can be set in the system to achieve online feedback adjustment.
This technology has outstanding performance in process flows such as cyanide leaching, copper oxide ore slurry adjustment, and lithium ore flotation pretreatment, significantly improving the recovery rate and resource utilization rate.

What are the parts that are prone to wear in the mining agitation tank? Are there wear-resistant protection measures?

Common wear parts of the mining agitation tank analysis
Impeller and blade edge
The impeller is the core component of the high-speed rotation in the mining agitation tank, which frequently contacts the slurry and produces strong shear and impact. Especially when handling hard particles, metal slurry, and high-concentration slurry, the impeller edge is most prone to erosion wear and particle scouring.
Zhejiang Golden Machinery Factory found through a large amount of on-site feedback data analysis that in most cases of service life attenuation, the impeller wear rate can account for more than 40% of the overall equipment loss.
Tank lining and tank bottom
The slurry keeps rolling and flowing inside the tank, especially the area near the bottom, which is a high-wear area due to the dual influence of gravity sedimentation and impeller vortex. The bottom of the tank is particularly prone to eddy current scouring due to particle accumulation, resulting in local perforation.
When processing highly abrasive ores such as copper, iron, lithium, and tungsten, the bottom of the tank often shows different degrees of metal fatigue after half a year of operation.
Guide tube and stator assembly
During the mixing process, the guide tube guides the slurry to form a directional flow field. Although the speed is low, it will also cause structural wear due to long-term scouring of the slurry and corrosion of the reagents.
Some customers have loose guide tube interfaces and crack expansion on site, which is the result of such wear not being controlled in time.
Drive shaft and shaft seal part
The stirring shaft drives the impeller to rotate through the motor. The shaft body often causes wear between the shaft neck and the sleeve due to axial force, centrifugal force and reverse action of the slurry; the shaft seal may leak due to uneven pressure or aging of the sealing medium.
Zhejiang Golden Machinery Factory uses imported mechanical seals and customized bearing structures in multiple projects, which has effectively extended the life of the shaft seal by more than 1.5 times that of conventional designs.
Wear-resistant protection technology system of Zhejiang Golden Machinery Factory
In response to the above wear risks, Zhejiang Golden Machinery Factory combines domestic and foreign wear-resistant material technologies to build an effective multi-dimensional wear-resistant protection system:
1. Application of high-performance wear-resistant alloy materials
In the manufacture of mixing impellers, Zhejiang Golden Machinery Factory widely uses Cr-Mo high-chromium wear-resistant alloy steel, Ni-Hard alloy cast iron and other materials. These materials have high hardness and strong impact resistance, and can maintain structural stability under high-speed scouring conditions. For special working conditions, ceramic composite impellers or polyurethane rubber-coated impellers can also be provided to further extend the service life.
2. Replaceable anti-wear lining structure
In order to reduce the overall replacement cost, Jinchuan agitator tanks are generally designed as modular replaceable lining plate structures. The tank lining materials can be selected:
Wear-resistant rubber (suitable for slurries with strong acidity and alkalinity)
Polyurethane board (wear resistance and chemical resistance)
Polymer engineering plastics (suitable for corrosive solutions)
Through the design optimization of the lining structure, the overall life of the tank body is increased by about 35%.
3. Spraying ceramic coating or wear-resistant adhesive layer
For non-structural parts such as tank bottom, guide tube, stator, etc., Zhejiang Golden Machinery Factory introduces plasma spraying ceramic and nano-polymer adhesive layer protection technology. These high-adhesion coatings can effectively resist slurry erosion and chemical erosion, improve local durability, and are suitable for repair and enhancement after the equipment has been put into production.