We offer a comprehensive one-stop sourcing solution across construction machinery, agricultural and forestry equipment, marine and power systems, hydraulic components, and new energy devices, all customizable to meet diverse project needs.
Qingzhou Mingxu Supply Chain Co., Ltd. supplies a Gold-Mining Vibrating Screen for pre-screening in placer gold processing. The screen is intended for wet separation of river sand ore, crushed rock, and gold-bearing tailings. It uses dual vibration motors to generate high-frequency motion, removing large waste stones and collecting fine gold slurry for further separation.
The machine is built with a heavy frame, wear-resistant screen mesh, and shock-absorbing components. It can be matched with gold centrifugal concentrators and gold dredgers to form a complete mining line. Custom specifications and bulk orders are available, and the unit is supplied directly from the factory with optional full gold processing equipment packages.
| Item | Description |
|---|---|
| Screening Type | Wet high-frequency vibrating screen |
| Drive Method | Dual vibration motors |
| Screen Mesh Material | High manganese steel, wear-resistant |
| Frame Construction | Heavy-duty welded steel |
| Shock Absorption | Rubber or steel coil springs |
| Water System | Spray pipes for wet screening and washing |
| Matching Equipment | Gold centrifugal concentrator, gold dredger, sluice box |
The vibration motors drive the screen frame at high frequency. Gold-bearing sand is fed onto the inclined screen surface. Fine gold slurry passes through the mesh and flows to downstream gold separation equipment, while large pebbles and waste stones slide down the screen slope to the discharge outlet. The screen thus grades the ore and removes oversized material, providing clean feed for subsequent concentration.
The Gold-Mining Vibrating Screen can be configured according to the mud content and particle size distribution of the feed material. The following parameters are usually determined during the order stage after a brief description of the raw material is provided.
Amplitude adjustment. The vibration motors are selected or set to produce a suitable amplitude for the material. For coarse gravel with low mud content, a higher amplitude helps move material forward and improves screening efficiency. For fine, clay-rich feed, a lower amplitude with higher frequency is often preferred to avoid blinding and to keep fine gold particles moving through the mesh.
Screen deck inclination. The angle of the screen surface can be designed between approximately 5° and 15°. A steeper angle increases material travel speed and is suited for high-volume, low-mud feeds. A flatter angle allows more contact time and is used when the feed contains sticky clay or when fine gold slurry needs additional drainage time.
Spray water configuration. The number, position, and pressure of spray nozzles are arranged according to the expected mud content. For high-mud ores, additional spray bars are installed above the feed zone and along the screen deck to break down clay and wash fine particles through the mesh. The water flow rate can be adjusted in the field, and the piping layout allows for partial shutoff when less washing is required.
1. Effective screening. High-frequency vibration creates layered separation, helping to separate coarse and fine material and reduce gold loss during pre-screening.
2. Wear-resistant construction. The thickened high-manganese steel mesh withstands long-term sand abrasion and is replaceable when worn.
3. Stable operation. Shock-absorbing springs reduce vibration and noise, and the simple structure keeps daily inspection and maintenance straightforward.
1. Before startup, check the vibration motors, shock springs, screen mesh, and water pipelines. Clear any accumulated sand from the screen to avoid blockage.
2. Start the machine without load. After vibration becomes stable, turn on the water spray, then feed gold-bearing sand evenly and continuously.
3. During operation, adjust feeding speed according to mud content to prevent mesh clogging and maintain screening performance.
4. After production stops, continue spraying water to flush residual sand from the mesh gaps.
5. Clean the machine thoroughly, shut off water and power, and apply anti-rust protection before storage.
The Gold-Mining Vibrating Screen is suitable for processing river placer gold, mine tailings, and crushed ore. It is commonly used in land-based gold washing plants, tailings recovery operations, and field placer gold mining projects, often in combination with gold dredgers and centrifugal concentrators.
The complete machine is covered by a 12-month or 1,000-working-hour warranty, whichever comes first. Wear parts such as the screen mesh and springs are not included in the free warranty. Replacement parts can be supplied; freight and installation labor are the customer's responsibility.
Q1: How do I know which amplitude and screen angle are right for my material?
A1: The selection depends mainly on mud content and particle size. For coarse gravel with little clay, a steeper angle and higher amplitude are usually effective. For fine or sticky material, a lower amplitude and flatter deck help prevent blinding. We recommend sending a brief description of the feed material and, if possible, a sample so that the screen can be configured before production.
Q2: Can the spray water system be adjusted after installation?
A2: Yes. The spray bars are equipped with adjustable nozzles, and sections can be turned off when less water is needed. For a permanently different spray layout, the piping can be modified on site, or additional spray bars can be supplied.
Q3: How often does the screen mesh need to be replaced?
A3: Mesh life depends on the abrasiveness of the ore and the daily operating time. In normal placer gold applications, the mesh can last several months. It should be inspected weekly for thinning or tears, and replaced when the opening size starts to enlarge or when screening performance drops.
Q4: Can the screen be used as a standalone unit without a gold washing plant?
A4: Yes. The screen can be used to pre-classify any wet material, including sand and gravel or crushed ore. When used for gold processing, it is usually placed before a centrifugal concentrator or sluice box to provide clean, sized feed.
Address
West end of Yadong Street, Qingzhou Economic Development Zone, China
Tel
