Solutions

Working Principle of the Laboratory Continuous Flotation Cell

The laboratory continuous flotation cell  typically features a modular design, with two cells forming one basic operational unit. The cell volumes are available in a wide range and can be customized according to specific experimental requirements, with single-cell capacities ranging from 1.5 L to 48 L. Its core agitation system combines mechanical stirring with self-aspiration […]

Determination of Gold Content in Gold Alloy and Jewelry by the Cupellation Method

This method is applicable for the determination of gold content ranging from 30% to 99.9% in alloyed gold and jewelry. The test results of this method can serve as a reference standard and have an arbitration effect.   Tools and consumables required for fire assay of gold alloys (jewelry gold): Cupellation Furnace Analytical balance Lead beads […]

laboratory jaw crusher with digital display for jaw plates gap

laboratory jaw crusher is equipped with digital display for jaw plates gap. It is more directly to adjust the closed side setting for expected product discharged size. We adopt the mechanical structure to adjust the jaw plates gap, but adopting the digital display to indicate the CSS open. This combination make closed side setting adjusting […]

wastewater treatment for crushingaggregate plant by thickener and filter press

crushing/aggregate plant always need to treat process wastewater to meet the government discharge requirement for environmental protection. Wastewater from crushing plant dewatering unit and wheel washer for sand. Solutions: 1, Recommended proven treatment process (industry-standard thickener + flocculation + advanced filtration process) Complete process flow Wastewater inlet channel → bar screen debris removal → pre-grit […]

Multi-functional Experimental Leaching-Solvent Extraction-Electrowinning System

Application This multi-functional experimental leaching-extraction-electrowinning system is developed for wet metallurgy tests of non-ferrous and precious metals. It supports lab-scale conditional tests and process optimization for metal recovery, covering the hydrometallurgical extraction and recovery of copper, zinc, nickel, cobalt, gold and silver. It is compatible with raw materials including oxidized copper ore, sulfide copper ore, […]

300t CIL plant with jigger

Our company provided all the equipment for this project, including jaw crushers, cone crushers, belt conveyors, ball mills, hydrocyclones, thickeners, leaching tanks, roots blowers, and slurry pumps, along with matching hoppers, cables, and electrical control systems. To facilitate operation for the client, we also supplied the grinding steel balls and corresponding spare parts for the […]

12m Thickener

We have produced 9m/12m full-hydraulic Mining Thickener Tank in stock for responding to customers promptly Mining Thickener stock photos and detailed analysis To give you a more intuitive understanding of the equipment quality, we have shot detailed on-site footage inside the workshop. This batch of 9-meter/12-meter full-hydraulic thickener not only meets the parameter standards but […]

Laboratory Continuous Flotation Case Study

The laboratory continuous flotation plant integrates crushing, grinding, pulp conditioning, and continuous flotation into a complete process system. This system accurately replicates industrial mineral processing conditions, enabling professional testing for ore separation studies, reagent regime optimization, process debugging, and new technology validation. It provides mining enterprises with precise, reliable experimental data and customized technical solutions, supporting efficient […]

crushing and splitting Equipment Drawing

To efficiently and accurately crush and splitting a 100mm hard rock sample to a final product size of 2mm. Due to the large feed size of the sample, single-stage crushing is difficult to meet customer requirements. Therefore, we have tailored a joint process solution of “jaw crusher + double-roll crushing and splitting unit” for them. This equipment mainly […]

Tire-type ball mill for gold tailings grinding

Operating Condition Analysis Customer Case Study: Gold Tailings Grinding Project Raw Material: Gold tailings Feed Size: 2 mm Processing Capacity: 8 tons per hour (t/h) Discharge Size (Cyclone Overflow): 80% passing 75 μm (< 75 μm) Recommended Solution Based on the above operating conditions, we recommend the following process flow: Tire-Type Ball Mill + Hydrocyclone + Slurry Pump in a […]

24m fully automatic thickener at a magnetite ore processing plant

Six years ago, we successfully installed and commissioned a 24m fully automatic thickener at a magnetite ore processing plant in China. This equipment is specifically designed for the dry discharge of magnetite tailings, with a daily processing capacity of 1,000 tons. To address the challenges of high clay content and strong tailings viscosity, the thickener […]

Tyre Drive Ball Mill in ZJH minerals workshop

The Model of Tyre Drive Ball Mill is usually named according to the dimension of ball mill drum and length, which decide the ball mill size and capacity. ZJH minerals has rich experience for producing the Tyre Drive Ball Mill. We could do it on the client’s idea. The follow pictures shows our typical model […]

Aerated Flotation Machine for Teaching Purposes

Product Introduction This equipment is a three-stage aerated flotation machine specifically developed for teaching in mining, metallurgy, and mineral processing engineering. It integrates roughing, cleaning, and secondary cleaning units, completely replicating the industrial flotation process. It is an ideal teaching demonstration device for universities, vocational schools, and corporate training centers. The main structure of the equipment […]

Small Ball Mill with Air Classifier for Dry Powder Grinding

ZJH minerals introduces a precision-designed closed-circuit grinding system with a production capacity of 50 kg/h.  We have designed for our Canada client. It is Centered around a ball mill and equipped with a variable frequency air classifier, this system is specifically designed for the deep processing of steel slag and fly ash, enabling flexible production […]

Laboratory-thickener

The thickener is an indispensable piece of equipment in mineral processing. For a long time, the conventional industrial practice has been to obtain settling velocities through static settling tests and then calculate the required area using the Coe-Clevenger or Talmage-Fitch equations. While this approach is suitable for many conventional slurries in engineering applications, a static […]

Electrowinning Cell

Application Electrowinning is widely adopted to recover gold from cyanide solutions desorbed by activated carbon. It delivers high-quality finished products and has little impact on the composition of desorption solution. Featuring a fully enclosed operation process, it minimizes precious metal loss and boasts higher safety performance than cementation method, serving as a core procedure in […]

Ultra-Fine-Grinding with Vertical Stirred Ball Mill-Cyanide-Leaching

The core of the CIL process lies in the efficient monomer dissociation and full exposure of the gold from the ore!  This will make the gold facilitate the contact and dissolution of cyanide solution. The follow picture shows the Vertical Stirred Ball Mill positioned in the gold ore grinding plant. The Vertical Stirred Ball Mill […]

Methods for Calculation of Thickener Tank Settling Area

In the mining industry, thickener tanks are primarily used for dewatering concentrates and tailings in ore processing plants, thickening backfill tailings for underground backfill systems, and slurry thickening before and after long-distance slurry pipeline transportation systems. It can be said that the thickener is an indispensable piece of equipment in mineral processing flowsheets. Consequently, the […]

Standard Test Sieve

Ultrasonic Test Sieve Ultrasonic vibrating sieve is a high-efficiency sieving equipment that uses ultrasonic technology to generate high-frequency vibrations to achieve precise separation of materials on the screen mesh. It is widely used in chemical, food, pharmaceutical and other industries, especially suitable for processing agglomerated and highly viscous powders. This equipment features high sieving efficiency, […]

Gold Recovery Process Design from Copper Tailings with 1.2 gt Au

This process design is conducted for gold recovery from copper tailings with a gold grade of 1.2 g/t. The process is comprehensively designed based on the occurrence state of gold, tailings particle size, associated minerals, environmental protection requirements and production economy. The following is the process flow configuration scheme based on industrial practice. 1. Analysis […]

Zinc Cementation Gold Extraction Process

Zinc cementation gold extraction is a classic and widely used hydrometallurgical technique, mainly applied to recover gold by cementation from gold-bearing cyanide leach solution. Basic Principle Based on the metal activity series, zinc is more reductive than gold. It can reduce gold ions in cyanide solution to metallic gold, which precipitates out, while zinc itself […]

thickener for mining dewatering

As a key piece of equipment for solid-liquid separation, the thickener plays a vital role in mineral processing. Utilizing the principle of gravity sedimentation, it concentrates low-density slurries into high-density underflow while recovering clarified overflow water. Throughout this entire process, there is a large component often regarded as a “supporting role” that is, in fact, […]

High Pressure Grinding Rolls

Applicable Material Hardness Hard metallic ores and recycled waste materials: tungsten ore, tungsten sand, tungsten carbide scraps, hard alloy waste, magnetite, hematite, chromite, manganese ore, ilmenite, as well as copper, gold, silver, lead-zinc ores and tailings containing high-hardness gangue Highly abrasive non-metallic ores: quartzite, silica, granite, basalt, diabase, gneiss, corundum, silicon carbide, garnet, diamond tailings […]

Shipment-drawing-of-automatic-flocculant-dosing-device

In the solid-liquid separation processes of the mining, chemical, and environmental protection industries, the selection of the appropriate thickener is a critical step. In traditional design, to ensure operational safety and cope with fluctuations in ore throughput, feed concentration, and varying operator skill levels, there is a tendency to select a larger thickener size. This […]

Flat Jaw Plate Jaw Crusher

Application Scope It is applicable to laboratory sample preparation and small-batch crushing of hard and brittle materials including various ores, coal samples, coke and building materials. Widely used in sample crushing laboratories of geology, metallurgy, coal, chemical and other industries, it can provide samples with uniform particle size and stable composition for subsequent laboratory analysis […]

SK Series Environmental Jaw Crusher

Application Scope Specially used in laboratories of industrial sectors including geology, metallurgy, steel plants, mining, energy, building materials, chemical industry, coal, as well as universities and research institutions. It is applicable for coarse and medium crushing of various medium-hard ores and other materials. Design Advantages Developed and manufactured by integrating the advantages of similar domestic […]

Laboratory Single Cell Flotation Machine

Working Principle During operation of the XFD single cell flotation machine,due to the negative pressure created by the rotation of the impeller, the pulp inside the front compartment will be sucked into the impeller, forming a recirculation.Air is drawn in to form fine bubbles,and mineral particles adhere to the bubbles and rise to form a […]

Discharge End of Grate-Type Ball Mill

Grate Ball Mill Applications Metal ores: Mainly used for coarse and primary grinding of iron ore, copper ore, gold ore and other metal ores. Non-metallic ores: Also applicable to some non-metallic ores such as phosphate ore and limestone. A grate plate is installed at the discharge end.After materials enter the cylinder and rotate with the […]

Mineral Sand Shaking Table

The core differences between ore shaking tables and slime shaking tables lie in their processing particle size, bed structure, operating parameters, and separation principles. They are respectively suited to the gravity separation needs of coarse/fine and ultrafine particles. Specific differences are as follows: I. Applicable Particle Sizes 1. Mineral Sand Shaking Table: Processes coarse, medium, […]

Teaching transparent hydrocyclone

1~The main advantages of the transparent hydrocyclone used in teaching can be summarized as follows: Visual teaching: This is the most crucial advantage. The transparent wall material enables students to directly observe the processes of fluid rotation, centrifugal separation or classification. It transforms abstract theoretical concepts (such as streamlines and pressure distribution) into intuitive visual […]

Multi-cell Flotation Machine

1.Ore Pretreatment The newly mined gold ore has a large particle size. It needs to go through primary, secondary and tertiary crushing in sequence by jaw crushers and cone crushers, reducing the ore particle size to 10-15mm gradually, which lays a foundation for the subsequent grinding process. 2.Grinding Stage The crushed ore is fed into […]

Jaw Crusher in big crushing ratio

ZJH Minerals’ laboratory  jaw crusher features a large crushing ratio, fine and uniform output particle size, and convenient jaw plate adjustment, meeting the crushing needs of laboratory testing, mineral processing, and other applications. Compared to current multi-stage crushing processes, it adopts a single-stage crushing design, making it a new type of laboratory crushing equipment. Main […]

Gold Extraction Process from Sulfuric Acid Slag

Sulfuric acid slag, also known as pyrite cinder, is a solid waste generated during the production of sulfuric acid by pyrite roasting. The gold minerals in such slag are usually fine-grained and highly encapsulated, leading to low gold recovery rate in traditional grinding processes, along with high energy consumption, high cost and serious resource waste. […]

Manufacturing Techniques for Mining Ball Mill

Rigorous manufacturing technology will make a Mining Ball Mill in durable. Because Mining Ball Mill is a core equipment for a mineral processing plant. We have to take care for producing top quality product by considering the raw material, the welding method, the parts processing and treatment method, the lubrication method, the motor and reducer […]

High-strength alloy crusher

Application: The high-strength alloy crusher is a high-performance and high-strength crushing product independently developed by ZJH minerals based on the advantages of similar domestic and foreign products. It is specially designed for low-carbon high-strength alloy materials. The whole machine adopts mechatronics design, and large double flywheels are used to increase the machine power. The machine is […]

Advantages of Ball Mills With Rubber Liners

In traditional mineral processing plants, ball mills often produce deafening noise and consume a lot of energy. The main reason for this is that traditional metal liners—high-manganese steel liners—not only suffer severe wear and have a limited lifespan when subjected to repeated impacts from steel balls and materials, but their rigidity also converts a large […]

How to Extract Gold from Rock Gold Ores by Gravity Separation

1.Crushing Stage (Raw Ore Pretreatment) Rock gold ore with a particle size of <600mm is fed into primary crushing equipment (e.g., jaw crusher) and then sent to the secondary crushing stage after preliminary crushing. After further crushing by secondary crushing equipment (e.g., cone crusher), the particle size of the material is reduced. The crushed material […]

GOLD REFINING PILOT PLANT AQUA REGIA PROCESS

This equipment is a complete gold refining system using the aqua regia process. It consists of two core modules: a dissolution tank unit on the left and a reduction tank unit on the right, corresponding to the entire process of gold dissolution, impurity removal, and reduction precipitation. This system is suitable for raw materials with […]

vertical stirred ball mill JM800

Vertical stirred ball mill is generally named according to the cylinder inner diameter. For example, the model JM600 indicates the cylinder inner diameter of the vertical stirred ball mill, which  is 600mm Please refer to the photos of various specifications of the vertical stirred ball mills we produce, as well as their power, cylinder inner […]

Vertical stirred ball mill for grinding copper tailings

In copper tailings, gold features an extremely fine dissemination size and low degree of liberation. Conventional grinding struggles to effectively liberate the encapsulated gold, resulting in low recovery rates and poor economic benefits. Driven by a spiral agitator, grinding media (such as steel balls) perform multi-dimensional motion in the grinding chamber, exerting combined effects of […]

Flotation Machine Impellers – Corrosion-Resistant and Damage-Resistant Polyurethane Stator and Rotor Flotation machines are one of the most important pieces of equipment in the mineral processing process. ZJH Minerals produces rotors and stators with advanced design, reasonable mold design, stable chemical properties, impact resistance, tear resistance, light weight, and convenient and quick loading, unloading, maintenance, […]

Sample Preparation For XRF Analysis Of Cement Clinker

XRF (X-ray Fluorescence) analysis of cement clinker involves using X-rays to excite the elements in the clinker sample. By detecting the intensity of characteristic X-rays, it can rapidly and non-destructively determine the content of major oxides (such as CaO, SiO₂, Al₂O₃, Fe₂O₃, etc.) in the clinker. This is a core method for cement production control […]

Super Purity Gold produced by electrolytic cell

High-purity gold 99.999% is needed in industries such as semiconductors and healthcare, etc. As the follow 3 steps, we could produce 99.999% Super Purity Gold by electrolysis process. Step 1: Cast Gold to be Anodes 99.99 % gold  is placed in a medium-frequency melting furnace (as shown in the figure) to smelt and cast into […]

super duplex stainless steel thickener

ZJH MINERALS has been a seasoned player in the mining machinery sector for years. In our daily operations, we frequently encounter clients requiring corrosion-resistant equipment, who grapple with the challenges of processing highly corrosive solutions. Ordinary materials corrode rapidly, resulting in short equipment lifespans, substantial maintenance costs, and safety hazards. Our core solution: a thickener […]

electrolytic cell for producing high-purity copper powder

High-purity copper powder can be produced by electrolysis, with a purity of over 99.99%. Produced via electrolysis, it is known for its high purity and fine particle size, making it ideal for electronic components. Our electrolytic cell is capable of producing high-purity copper powder. It uses a copper plate as the soluble anode and a […]

laboratory reactor vessel for negative electrode materials for lithium batteries

To enhance the capacity of lithium batteries, the research and development of negative electrode materials are of great significance. Using laboratory reactor vessel for small-scale production of negative electrode materials is an effective method. In this case, a certain negative electrode materials manufacturer used a 50L laboratory reactor as a small-scale experimental device to produce […]

XRF pellet press

The XRF pellet press plays a crucial role in cement fluorescence spectroscopy by preparing uniformly compacted powder samples. This process eliminates sample inhomogeneity and particle effects, ensuring effective X-ray penetration to enhance both accuracy and reproducibility of XRF analysis results. The pellet-making process creates a fixed, flat surface under controlled pressure, facilitating precise measurement by X-ray […]

reduce the purchase cost of thickener tank

In order to reduce the purchase cost of a thickener tank for a mining company, ZJH minerals do it by the idea of produce the parts in client site, and sending exprienced engineer for guiding installation in client site. The following steps are carried out: ZJH minerals supply the tank and the support frame drawing […]

stainless steel ball mill

In some case, when we gridning the material by a ball mill in industrial scale capacity, we need to add some acidic or alkaline substances in the ball mill for making the object element easily seperating. However acidic or alkaline substances has a strong corrosive effect on ordinary carbon steel materials. At this time, stainless […]