About Us

MINEVIK Machinery is a leading and pioneering enterprise with the most advanced international level in R&D, manufacturing and selling of large-scale crushing & screening plants and beneficiation plants.

large-scale crushing & screening plants and beneficiation plants.

All of our equipment have got ISO international quality system certification, European Union CE certification and Russian GOST certification.

  • In central China-Zhengzhou, covering 140 thousand square meters
  • Win-win cooperation and create more value to customers
  • Exported large quantities and high-end mobile crushing plant and milling equipments to Russia, Kazakhstan, Indonesia, Ecuador, South Africa, Nigeria, Turkey more than 100 countries .

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Our Products

AS a leading global manufacturer of crushing and milling equipment, we offer including quarry, aggregate, grinding production and complete stone crushing plant. We also supply individual crushers and mills as well as spare parts of them.

Services

Our goal is to guarantee the excellent operation equipment with high safety for our customers and minimize the downtime of the machine by predictive maintenance. Kefid service and original accessories can be 100% trusted at the time of maintenance.

SERVICE AND SUPPORT

Minevik service and original accessories can be 100% trusted at the time of maintenance.

ACCESSORIES CENTER

striving to enable customers to get the parts in the nearest place.

SALES MARKET

Our sales market is spread all over more than 100 countries and regions

sluice box riffle design

Gold Sluice Box Design Mineral Processing & Metallurgy

Sluice box and riffles are one of the oldest forms of gravity separation devices used today (Photo 3). The size of sluices range from small, portable aluminum models used for prospecting to large units hundreds of feet long. Sluice boxes can be made out of wood, aluminum, plastic or steel. Modern sluices are built as one unit although sluices

Riffle Design, Height & Spacings?? TreasureNet

25/04/2009· What is the purpose of that bottom lip on the elongated 'Z' riffle design. Is it just to seal off the underside of the riffle if the riffles are sitting on top of an expanded mesh?? I am making my next box shorter & just interested in you humble advise & experiance in what your thoughts are on riffle design, angle & spacings relevant to there

DROP RIFFLE SLUICE TEST

07/02/2018· I like the drop riffle sluices and have built a number of them over the years. They are very efficient and easy to build. I continue to make changes to them to try to improve on the design and run

Simple Steps to Build a Sluice Box RareGoldNuggets

14/08/2016· 2) Plan and Design your Sluice Box . A sluice box is simply a long narrow box fitted with a number of obstructions referred to as riffles. When placed in a stream of running water the gold bearing dirt from the stream is fed into the sluice box where gold particles are caught by the riffles while the lighter dirt is washed away.

Best Sluice Box REVIEWS: Find More Gold With These Sluice

The sluice box then traps the fine gold behind riffles in the bottom of the sluice box. How Does A Sluice Box Work? Most gold sluice boxes are made out of lightweight metal and contain a removable riffle tray. The sluice box riffle tray sits on top of a carpet that traps the fine pieces of gold.

Gold Mining Supplies | GEO Sluice Mining | River Sluice

As gold prospectors ourselves, we provide top quality gold mining supplies that fulfil the needs we’ve encountered as well as the needs of all our mining friends. Strong, durable sluicing boxes (in mini sizes too for backpacking) are our specialty design, i.e., the “Le’ Trap™” Sluice Box. Other sluicing products such as gold cubes

Best Sluice Box REVIEWS: Find More Gold With These

The sluice box then traps the fine gold behind riffles in the bottom of the sluice box. How Does A Sluice Box Work? Most gold sluice boxes are made out of lightweight metal and contain a removable riffle tray. The sluice box riffle tray sits on top of a carpet that traps the fine pieces of gold.

Gold Mining Supplies | GEO Sluice Mining | River Sluice

As gold prospectors ourselves, we provide top quality gold mining supplies that fulfil the needs we’ve encountered as well as the needs of all our mining friends. Strong, durable sluicing boxes (in mini sizes too for backpacking) are our specialty design, i.e., the “Le’ Trap™” Sluice Box. Other sluicing products such as gold cubes

How to SIZE a Sluice Box Mineral Processing & Metallurgy

This week I went and asked “how to SIZE a sluice box” to the crew on a large gold prospector forum and other sluice or gravity gold recovery ‘experts’ and gathered the list of emails and forum posts here below. As you will see, in summary, most can optimize or troubleshoot a sluice box but few or none can size a gold sluice box.

Le' Trap Mini Closed Top GEO Sluice Mining

Description Le’ Trap Mini – Closed Top NEW FOR 2019. Introducing the newest awesome Sluice Box design! Not only is Geo Sluice Mining making the Le’Trap™, but we’ve designed a new smaller version that weighs less than a pound and can be placed into a backpack.

What’s the difference in sluice box riffle? – Prospectors

31/01/2015· What’s the difference in sluice box riffle? The most common and often asked question we get is, “What is the difference between all the sluices?” One of the primary differences is in Sluice Box Riffle system. We have 3 kinds of Riffle Tray Systems, each having their own specific uses. Explorer Explorer riffle. Explorer Model, uses a “Rod Riffle” design and 1/4″ raised expanded with

How to Build a Sluice Box: The 7 Things You Need to Do It

The box is non-moving and simply uses gravity and the flow of water. As water moves through the sluice box, rocks, small, objects, sand, and gold get trapped in different layers called riffles. The device works more effectively when compared to gold panning as the act of separation is done by a

Plan, Design and Build a Homemade Gold Sluice Box

The heavier materials like gold remain behind, trapped by the riffles. For many years, most sluice boxes were always home made affairs designed and built in the gold prospector himself. That meant there were a lot of strange designs as every guy had some idea about building a better mousetrap, or, sluice box. To this day, in the gold bearing

» The Size of Riffles New 49ers Prospecting Club

Most recovery systems on suction dredges use fixed riffles to trap gold out of lighter streambed materials as they are washed through a sluice box by a flow of water. Riffles are baffle-like obstructions, fixed in place along the bottom of the sluice box. They are designed and positioned so that there is a back-pressure created that sucks water and material behind the riffles from the flow

43 Best Sluice Box images | Gold prospecting, Gold sluice

Sluice box properly setup and how to use, feed and adjust waterflow If you plan on using a sluice box to do gold prospecting, this is a must watch video series on youtube. Sluice box properly setup and how to use, feed and adjust water flow. See more

Clarkston riffle design questions PICS!! TreasureNet

15/06/2014· Clarkston riffle design questions PICS!! I based everything off the clarkston research. I used 3/4"x3/4" angle iron and 1 1/2" flat bar. at 3/4" tall they should have been spaced 1 1/2" apart from down stream edge to up stream edge with a 15 degree pitch to them.

Hydraulic riffles or New Zealander Sluice CARIBOO

14/04/2011· There are a number of design factors to consider such as riffle size, geometry, spacing, water pressure, aperture size and spacing, etc. The primary advantage of a hydraulic riffle is that it "dilates" or fluidizes the sluice bed which could allow heavies to penetrate deeper and have a better chance of being retained. It will also help keep the

Sluice Gold Panning Supplies

The Hungry Haggis a lightweight portable sluice. A ‘pinch’ has been added to our well proven riffle design resulting in an area of flow deceleration. This traps even the finest gold. There is also a recess to take a classification mesh.

Sluice Matting and Miners Moss – Sunny Mountain

Sunny Mountain carries a wide variety of sluice box matting. We have matting for your highbanker, river sluice and gold concentrators. We carry Keene's Miracle Mat, Prospectors Dream Vortex Mats, v-matting, miners moss and Gold Hog Mats.

» Setting the Proper Water Velocity Through a Sluice Box

Sluice boxes process material best when receiving it from a steady feed. Too much material dumped at once into a sluice box has a tendency to overload the riffles and choke off the concentrating-action behind the riffles. This will cause gold to wash right through the sluice box as if there were no riffles

Optimization of Sluice box Performance

particles and transporting course gangue along the sluice-box. Sluice-boxes are always set at an inclination, the slope of which is again a balance between conflicting factors, similar to those that determine width. A number of types of riffles have been used and includes, longitudinal riffles, blankets,

GoldHog Sluice Mats GoldHog Gold Prospecting

Much like a tradition riffle. The awesome thing about the Riverhog riffle is that it can be trimmed to YOUR needed height, and to either a cut or throw angle. (Explained in the video) You can use it in ANY sluice as long as you match the water depth with the riffle height, but it’s great for the top of dredges where water is rough as well.

Design And Build Of Sluice And Riffle

Design riffle concentrationlan, design and build a homemade gold sluice boxvaried riffle designs are available for specific types of applications final concentration takes place in the unriffled area at the end of the deck, where the layersign riffle concentration,sluice-build-partiii-

Plan, Design and Build a Homemade Gold Sluice Box

Plan, Design and Build a Homemade Gold Sluice Box. Plan, Design and Build a Homemade Gold Sluice Box . Saved from Gold Prospecting in the Best Places Using Gold Panning See more. Figure The abrupt bend on the Ovens River in which Big Eddy bench is situated. A large hydraulic recirculating ‘eddy’ forms for a range of flows from bench inundation to bankfull flow . Gold Mining Equipment

The Riffle/Trap System Gold Prospectors Association of

All most all sluice boxes use a carpet or some form of ribbed matting or miners moss as the first trap in the sluice box. The second trap may be expanded metal or a riffle system that goes over the top of the first trap and some might go expanded metal over the first trap with a riffle system over the expanded metal giving the sluice box 3 traps to stop and hold the gold.

Angle Of Riffles In A Sluice Boand

Sluice Rifles Pics. Sluice boxes use riffles to capture and hold find gold that is shoveled into the sluice box riffles do a great job of slowing the gold down, but some type of matting underneath the riffles is required to hold the gold and help prevent it from blowing out the bottom. get more. Read More

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