PORTABLE DIAMOND AND GOLD WASH PLANTS

With over 5 decades in fabrication, DOVE is the world largest manufacturer of portable wash plants, producing portable processing plants for alluvial (placer) gold, diamonds, platinum metals, base and ferrous metals.

The EXPLORER^® Portable Diamond and Gold Processing Plants are Portable Diamond and Gold Wash Plants designed for the recovery of gold and diamonds at the same time and simultaneously, with 100% recovery of both gold and diamond production, with no loss. Plants include security system to prevent unauthorized access to the production.

• EFFICIENCY:  DOVE Portable Wash Plants (EXPLORER^® Portable Processing Plants) for Gold and Diamonds achieve the highest efficiency and production recovery, up to 100%, with no loss.

• PRODUCTION SECURITY: DOVE Portable Daimond and Gold Wash Plants are configured as highly secured wash plants, with a security system and locking mechanism, all to prohibit unauthorized access to the production and prevent theft.

• AUTOMATIC PROCESSING:  DOVE Portable Diamond and Gold Wash Plants (EXPLORER^® Portable Processing Plants) are designed for the automatic and simultaneous classification, concentration and recovery of Alluvial (Placer) Gold and Diamonds, with hardly any operator interference.

• CUSTOMIZATION: DOVE Portable Wash Plants are specifically designed and customized according to the ore specifications and the client’s project characteristics.

• USER-FRIENDLY: DOVE Portable Wash Plants require only 2-3 days of training to learn the operation and maintenance of the plant.

• ENVIRONMENT-FRIENDLY:  DOVE Portable Diamond and Gold Wash Plants are environment-friendly and only use recycled water, no chemicals, to effectively process and recover 100% of the production.

• PORTABILITY: DOVE Portable Wash Plants have the ability to easily be assembled, disassembled and transported on the site, and offer rapid deployment with ease of installation and operation.

• RUGGED DESIGN: DOVE Portable Wash Plants are constructed with rugged materials to ensure the durability of the wash plants when being used and transported through the rugged areas in the mining sites.

• ECONOMICAL: DOVE Portable Wash Plants are low maintenance, while being highly efficient and economical.

WARRANTY:

All DOVE equipment carry a standard Manufacturer’s Warranty, which can be extended to 5 years, in addition to lifetime spare parts supply service.

DOVE provides full technical services worldwide, including plant engineering design, mining site construction design, site assembly, installation, test run and training.

MANUFACTURING FACILITIES:

DOVE Equipment & Machinery manufacturing facilities are located about 30 minutes drive from the company Head office in Bangkok, which includes 8 factories and showroom.

DOVE Equipment and Machinery with over 50 years manufacturing expertise, and the largest range of mining and minerals processing technologies is the recipient of ISO 9001: 2015, Green Industry Certification, and Golden Eagle of Asia Awards 2020 Best Business of the Year (DOVE Equipment and Machinery and DOVE Instruments), which insures highest quality and standard of our manufacturing and customer service practices.

Video of DOVE Manufacturing Facilities:

MINERAL TEST SERVICES:

DOVE laboratory will assay your ore samples rapidly and analyze your raw materials and recommend the most efficient processing plant according to the ore specifications, minerals composition, and ore assay results, and your project size and the geologic and topographic conditions of your mine.

Please,  CONTACT US  for your sample analysis and quotation.

Portable Gold & Diamond Wash Plants, also known as Portable Alluvial Gold and Diamond Wash Plants, Portable Placer Gold and Diamond Wash Plants, Portable Alluvial Gold and Diamond Processing Plants, Portable Placer Gold and Diamond Processing Plants or Portable Gold & Diamond Trommel Wash Plants, are gold and diamond wash plants (or alluvial gold and diamond processing plants) designed for ease of portability once deployed on the mining site.

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In a DOVE Portable Gold & Diamond Wash Plant, every component is crucial for efficient operations and proper processing of Gold & Diamond Ore, which are important to achieve high recovery of the Gold & Diamond Production. DOVE’s unique designs are embedded in each of the Portable Wash Plants’ components to ensure the efficient recovery of 100% of the Gold & Diamond Production, with no loss.

Ore feeding, Sizing (screening and classification), Concentration of coarse Gold and Diamond, Concentration of fine Diamond and Final concentrate cleanup and smelting of the Gold are the most important steps that are involved in Alluvial Gold and Diamond ore processing by the Wash Plants. Overlooking any short of these steps will result in lack or reduction of recovery, as well as the loss of the valuable minerals.

The concentration stage is achieved by a method scientifically called “Gravity Separation”, which separates minerals or metals from one another, or valuable minerals apart from the gangue, using their difference in specific gravity, which can be a wet or a dry process.

DOVE Portable Gold & Diamond Wash Plants are configured with Multi-Stage Concentrating modules, which includes DOVE Multi-Stage Jig Concentrators for the recovery of nugget Gold and Coarse Diamond (+2 mm), as well as DOVE Advanced Centrifugal Concentrators for the recovery of Fine Gold (2 mm – 0.004 mm) and VBS^® Concentrator for recovery of fine diamonds (2 mm – 0.005 mm). DOVE Plants ensure the highest recovery of gold production in the industry, with no loss.

STEP 1: ORE FEED

1. ORE FEED HOPPER:

is a bin designed to receive the ore from earth moving equipment, such as conveyors, gravel pumps, excavators, loaders or dump truck, and used to supplement the wash plant in ore. The feeding from this hopper can be a wet or dry type depending on the project’s requirements, and it’s capacity will vary according to the wash plant’s capacity (metric Tons Per Hour) solids.

DOVE Ore Feed Hoppers are supplied in a wide range of capacities and designed. They are engineered as interconnecting disjoint parts that can fit in standard shipping containers and are cost efficient for freight, and are easy and rapid to assemble, install and disassemble on the mining site.

DOVE Ore Feed Hoppers are fabricated with heavy cage of steel 5-9 mm, to ensure their durability and to stand severe conditions at the mining site. Additionally, these are designed to be easily connected to high-pressure Hydraulic Spray-Jets System, Hydraulic Manifold and piping system. Its slurry outlet is designed for ease of connection to the Static or Vibrating Grizzly.

2. HYDRAULIC MONITOR:

is a powerful cannon designed to spray jets of highly pressurized water and is used to break the clay contained in the ore at the feeding stage of the wash plant. The cannons are used in wet ore feeding system and are particularly effective when handling ores with high clay content. Additionally, they assist with the logistics of the slurry ore going through the Ore Feed Channels, onto the next step of processing.

DOVE Monitors’ bodies are casted in high carbon hardened steel and have a bronze head. Also, in order to facilitate working for long hours under extreme weather conditions, they are supplied with an Operator Cabin Stand Structure.

DOVE Monitors are rugged and have a proven history of durability and high efficiency when handling the recycled water the mining site, which contains sand and clay.

3. Ore Channel

also known as Slurry Channel, uses gravity to rapidly transport the slurry ore from one processing stage to another of the plant, such as from the screening stage to the classification stage. DOVE Ore Feed Channels are exclusively designed to break clay with their hydraulic network and High Pressure Spray Jet System configuration.

DOVE Ore Feed Channels are fabricated in numerous dimensions and are designed to handle a variety of Wash Plant processing capacities, ore logistics volume requirements, with respect to the specific ore characteristics and specific site conditions.

DOVE Ore Feed Channels are entirely rubber lined, which accelerate the logistics of the slurry ore, eliminates the friction, reduces the wear of the steel channel, and eliminate clogging of solid particles in the channel. These unique and unparalleled features make DOVE Wash Plants the number one desired solution for every mining operation.

1. GRIZZLY SEPARATORS

are used as the first screening stage of DOVE Portable Wash Plants. They are designed to screen the oversized rocks from contained in the ore to insure efficient processing and recovery of the minerals in the next stages. The screen sizes vary depending on the ore characteristics and project specifications. The Grizzly Separator will rapidly remove the unwanted oversized rocks, resulting in only the mineral baring particles of the ore being processed. This step will also result in the reduction of the amount of material that needs to be processed and the increased selectivity and efficiency of the next stages.

DOVE Grizzly Separators, which can be either Static Grizzly Separators or Vibrating Grizzly Separator, are manufactured in various models and capacities. DOVE Grizzly Separatorsare integrated with High Pressure Spray Jet module and complete Hydraulic Net work, designed to break the clay sticking to the rock particles and eliminate the risk of losing the precious minerals that might stick to the oversized rocks due to the clay.

2. DOVE MULTY-STAGE CLASSIFICATION TROMMELS

are spinning cylindrical screens used for the second screening stage in DOVE Portable Gold & Diamond Wash Plants.

Trommel Classifier is a large revolving cylindrical screen installed on a supporting base, in a slightly inclined position. The Trommel’s cylindrical screen spins in order to sort through the material that is being introduced through its feeding end. In a Portable Wash Plant, the Trommel is a major component and is design to simultaneously break the valuable minerals free from the host clay, and to also classify the particles in the ore according to their size, reducing the volume of material that will be processed in the next stages for optimized performance and increased efficiency of the recovery process.

The Trommel’s design and specifications vary and are extremely important parameters to consider as the trommel’s performance can affect the recovery of the minerals going through to the concentration stages.

DOVE Portable Gold and Diamond Wash Plants are uniquely configured with DOVE Multi-Stage Classification Trommel. This Trommel is designed with unique features, which are unparalleled in the industry. DOVE Multi-Stage Classification Trommel enables the plant to achieve up to four (4) sizes classification simultaneously as well as resolving the concern on Heavy Clay content.

DOVE Trommels are supplied in various capacities and models and basically divides into various categories and models.

All DOVE Multi-Stage Classification Trommels are offered with Trommel Feed Hopper, Hopper Hydraulic Clay Breaking Network, Security Covers, 3-way Engine/Motor Security Canopy and Locking Mechanism, high pressure main Hydraulic Spray Jet System, Clay Breaking Module or Scrubber Module, Diesel Engine or Electric Motor, Gear Speed Reduction, Wheel Set Trailer, Hitch Mechanism, Undersize Rubber Lined Feed Channel, Feed Channel Rubber Lined for Corse Material, Water Manifold and Hydraulic Piping Network, and Height Adjustment Mechanism and optional Conveyor assembly for reject.

STEP 3: CONCENTRATION AND RECOVERY OF GOLD AND DIAMOND NUGGETS

Jig Concentrators are Gravity Concentration used in DOVE Portable Gold & Diamond Wash Plants to mainly perform the concentration and recovery of coarse gold and diamond particles.

Jig Concentrators are devices widely used for the recovery of various metals and minerals in the mining industry. They are designed to wash, separate and concentrate of various coarse metals & minerals within the ore, based on the specific gravity. 

Due to the jigging motion that the particles in the slurry are subjected to, their settling time is accelerated with respect to their specific gravity, which allows for separation over a selected screen mesh size to occur.

Jig Concentrators are the most important and essential devices in mineral recovery as they have the unique ability to absorb fluctuations in ore grades, tonnage rates and dilution, without any effect on recovery results.

DOVE Jigs are uniquely designed with features that are unparalleled in the industry. You will find DOVE Jigs in various African and in South East Asian countries, in Brazil, in Colombia and in Guyana.

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DOVE Jigs are available with Automatic Production Removal Module, Manifold and complete internal Hydraulic Network, Security System to prevent unauthorized access to the production preventing theft, Stand Structure, Jig Balance and Stands Height Adjustment System, Engine/Motor 3-Way Security Canopy, Speed Gear Adjustment Mechanism, Jig Feed Hopper, High Pressure Spray Jet to assist uniform flow of slurry ore, Trailer Wheel-Set, Hitch Mechanism, and Tool Box containing tools for maintenance.

STEP 4: CONCENTRATION AND RECOVERY OF FINE GOLD

DOVE Gold Centrifugal Concentrators are used in DOVE Portable Gold and Diamond Wash Plants for the concentration and recovery of fine gold particles.

Centrifugal Concentrators are gravity concentration devices, predominantly used to recover fine particles of free flowing Gold and other heavy minerals, especially used in mining operations that do not employ Cyanide or other toxic chemicals due to environmental concerns, government regulations or the high cost of Cyanide and other toxic chemicals for gold recovery process.

DOVE Gold Centrifugal Concentrators have advanced features and design, and efficiently recover fine gold particles by enhancing the gravitational force to optimize separation capabilities.

Additionally, DOVE Gold Centrifugal Concentrators require water only to efficiently process and to nearly recover 100% of every small sized particles of gold, down to 40 microns (0.004 mm). NOTE: For the recovery of particles sizes below (0.004 mm), DOVE Flotation Machine is recommended. DOVE Gold Concentrators are supplied with locking mechanism, complete hydraulic system and high pressure multi-stage water pumps, ore feed module including slurry pump and sump tank for feed monitoring, hydrocyclone and rubber fish tail as concentrate moisture adjustment mechanism and to control solid flow.

STEP 5: CONCENTRATION AND RECOVERY OF FINE DIAMONDS

DOVE VBS^® Concentrators are designed and patented by DOVE, and are used in DOVE Portable Gold and Diamond Wash Plants to simultaneously concentrate and recover fine particles of the ore’s diamond production.

DOVE VBS^® Concentrators are environment-friendly gravity concentrators that provide completely chemical or mercury-free, and operate with only water, whether clean or recycled.

VBS^® Concentrators are used to effectively and efficiently wash, classify and concentrate the fine diamond production from the ore in Alluvial (Placer) deposits..

STEP 6: FINAL GOLD CONCENTRATE CLEANUP AND SMELTING

1. DOVE Gold Concentrating Tables (Shaker tables) are designed and are used DOVE Portable Gold and Diamond Wash Plants for the cleanup of the final gold production concentrate.

Gold Concentrating Tables are recognized as the most effective and selective machines for wet Gravity Separation. They are used to separate minerals, even when the minerals specific gravity is close in value.

DOVE Gold Concentrating Tables are comprised of wooden decks with ultra-smooth rubber cover and riffle surface and are operating in horizontal plane, where material with higher specific gravity is separated from material with lower specific gravity.

Head Motion imparts a reciprocating movement to the table’s deck in a horizontal plane. As the material moves across the table, the shaking action of the deck causes size classification and specific gravity stratification. The flow of cross water causes shearing of stratified material and forces it to cascade over the rifle surface of the table’s deck. Lower specific gravity material remains close to the water surface and rides over the riffles towards discharge end of the table; higher specific gravity material is being hold back by the riffles, which is closest to the table’s surface, and moving along the table’s deck to the concentrate discharge.

2. DOVE Smelting Furnace is a highly efficient furnace used to smelt metals such as Gold, Platinum, Silver, Aluminum, Brass, etc., which allows for the metals to be converted into a purer form.

In the Portable Wash Plant, the Smelting Furnace is used after the Gold Concentrating Table, to remove the unwanted impurities while melting the Gold. The result will be a melted gold and a slag that are separated from each other due to the difference in its melting point and density. The slag can easily be removed and the melted gold will be molded into Gold Dory Bars.

DOVE Smelting Furnace is supplied with Hard Burned Crucibles where the material can be safely melted at high temperature, Quartz Rods to stir the melted alloy, Tongs to safely garb crucibles over the high temperature in the furnace, Sliding Ingot Mold for the creation of Gold Dory Bars, and Stamping Tools to mark the dory bars with the desired initials and serial numbers.

Additionally, DOVE Smelting Furnace is supplied with various accessories that aim to keep the user safe during the furnace operation, including high chemical and heat resistant protection masks to prevent the users from inhaling any hazardous particles, chemical and heat resistant clothes that are made of leather, and chemical and heat resistant apron that aim to protect the users hands and body from the dangers of the chemicals extreme temperature exposure, and safety goggles to protect the eyes from chemicals and hazardous particles.