The mobile trommelwashingplantis an optimized removable platform for gold recovery, applicable to small or medium scale of placer/soil gold ore processing which prefer to use mobile operation. Its advantage: less investment, less labor, fast return of investment, simple operation, easy movable etc.
Mobile gold washing plant, is composed by hopper, trommel, chassis, tires, turntable, generator, water pump, gearing, control panel and gold sluice box. The mobile trommel screen is an optimized removable platform for gold recovery, applicable to small or medium scale of placer gold ore processing that need mobile operation. Its advantage: less investment, less labor, fast return of investment, simple operation , movable etc.
The whole drum adopts strong and reinforced roller support and gear side drive, or chain pulley drive. The screen using high manganese steel woven net , It has large processing capacity, high efficiency , long service life , and easy to replace, no clogging. The chassis using heavy duty beam and equipped with six tires has sturdy construction, high load capacity, moreover the front wheel can achieve 180oturn , flexible move, let the mobile platform can easily cope with all kinds of complicated road. In addition, the chassis equipped with other four mechanical support legs, they can reinforce the bearing capacity of the whole chassis, ensure the equipment run more smoothly , reliable and safe during load running . Generator & motor separated drive, or direct diesel engine drive, low failure rate, easy maintenance. The gold recovery sluice covered by professional gold recovery carpet made of polyethylene non-woven, strong catch ability, high efficiency, it is also effective for fine particle gold.
Heavy duty: the drum has a double-layer structure, inner layer with dense steel bar structure, which can prevent large material damage the screen mesh directly, greatly improved the service life and screening efficiency of whole washing plant.
Light duty: the drum has single layer screen, it is used in the material that no large size material included, its advantage is light, which can reduce the weight of the whole equipment and energy consumption.
At Hengcheng, we provide more than just processing equipment, but constantly strive to assist you in achieving overall business excellence. This is why when you partner with Hengcheng, you dont just get a diversified product offering, but form a relationship based on product refinement.etc
Current ball milling theory suggests that grinding capacity is influenced by the size of balls charged to the mill. In selecting the appropriate ball charge, the first objective is to determine that ball size which will grind the coarse particles most efficiently. This size should be the largest ball size charged to the mill. The second objective is to provide the correct ball size distribution to grind the finer particles in the composite ball mill feed. This objective may necessitate charging a second, smaller ball size with the maximum ball size. The practice of charging a pre-determined ratio of two or more ball sizes to a mill is called rationed ball charging.
Maximum ball size is determined by several factors, including composite feed size, Bond Work Index, mill speed, mill diameter, and circulating load. An empirical equation was published by Azzaroni in 1981 to describe the relationship between these variables. The Azzaroni equation indicates that the correct ball size for the 2.93 m mill is 81 mm. Years of experience show that a 76 mm ball grinds the coarse particles most effectively.
Ball size distribution is governed by the wear law of the mill and by the wear characteristics through the cross-section of the balls charged to the mill. With this in mind, it is interesting to make a qualitative comparison of the ball size distributions which should be generated by 76 mm pearlitic carbon steel balls versus 76 mm martensitic alloy steel balls in the 2.93 m mills.
The 76 mm pearlitic carbon steel balls used have a relatively flat hardness gradient from surface to center. Therefore, the inherent wear characteristic of these balls should be nearly constant during their life in a mill.
Martensitic alloy steel balls are much harder, than pearlitic carbon steel balls throughout their cross-section. However, 76 mm martensitic balls generally have a hardness gradient. This gradient reflects varying amounts of soft transformation products such as bainite and pearlite in the ball micro-structure. The wear rates of these products are higher than that of martensite at equivalent carbon content. As a result, the inherent wear rate of martensitic balls increases slightly at the ball becomes smaller. Therefore, for a given ball mill with a constant wear law, the resultant seasoned 76 mm martensitic ball chart should contain more large balls, fewer small : balls, and less surface area than a seasoned charge of 76 mm pearlitic carbon steel balls. The reduced number of small balls, combined with a lower ball charge surface area, might explain the 6% lower grinding efficiency of a 76 mm martensitic ball charge compared to a 76 mm pearlitic ball charge.
We analyzed the ball size distributions resulting from charging 76 mm pearlitic carbon steel balls versus charging 76 mm martensitic alloy steel balls. This analysis was made using a computer simulation program that Lorenzetti et al described in 1977 to assess ball size distributions. Results for the 2.93 mills indicated that the martensitic steel ball charge should reduce consumption by at least 30%. However, the surface area of the charge should decrease 5% compared to the pearlitic , steel ball charge because of the hardness gradient effect described above.
The apparent correlation between lower ball charge surface area and decreased grinding capacity for martensitic balls warranted further investigation. We recommended a mill test using a rationed charge of martensitic alloy steel balls. The martensitic balls would reduce consumption. The rationed charge would increase the surface area of the ball charge.
Estimators, engineers, mine planners, appraisers and purchasing agents have relied on the Mine & Mill Equipment Cost Guide for over 20 years. Gathered directly from the source, with manufacturers, dealers and mining companies providing the most current information available.
Our Equipment Cost Guide is the most reliable source of equipment costs available to the mining industry. Estimators now have access to a convenient source of hourly operating costs as well as capital costs for virtually every piece of equipment listed in our previous guides.
Included are capital and operating costs for over 3,000 equipment items most commonly found at mines and mills around the world from 2 HP pumps to 2,000 HP trucks, from $200 slusher buckets to $30,000,000 walking draglines.
Calculate capital and hourly operating costs for virtually every equipment item needed for your project in a matter of minutes. Never guess at costs or waste time trying to locate a manufacturer to give you prices. The Mine & Mill Equipment Cost Guide has tabulated all the cost data you need in a convenient look-up format. Our capital costs are actual list prices or reliable estimations, and our operating costs are solid engineering estimates.
The Mine & Mill Equipment Cost Guide covers more than 3,000 items of mobile, portable, and stationary equipment commonly required by mining and milling operations. Select from a full range of sizes and types, with productivity information for many items.
Our equipment cost data also comes in a convenient online format. The Equipment Cost Calculator allows you to build your equipment fleet, tabulate its costs, adjust for local economics and conditions, and export the data into your own spreadsheet for further analysis.
The growth in the numbers of online stores have been most beneficial for the consumers as top online stores offer certain discounts or cash back offer from time to time which means the cost of a phone will differ from stores to stores. Our mobile phone price in India page gives visitors the information of the product along with the best price. Online mobile price in India This page is particularly helpful when it comes to less popular brand or the phones that are available only on online stores. Our page has the list of all mobiles price in India as well, so that you dont miss on the latest and the upcoming phones. Check the best mobile phone price of your favorite phone All of us want the best of phones, some can`t afford it and some of us wish it came at a slightly lesser price or on EMI. The smartphone price always differs according to the store. Our list not only gives you the best price of your phone, but also has the link to take you to online store where you can check the mode of payments or cash back offers if available. To sum up you can select the phone according to your preferred brands, specifications and availability in retail stores because the mobile price in Delhi may be higher or lesser in comparison to the other cities too. All the mobile prices listed in India from the top online stores is available on 91mobiles.
The growth in the numbers of online stores have been most beneficial for the consumers as top online stores offer certain discounts or cash back offer from time to time which means the cost of a phone will differ from stores to stores. Our mobile phone price in India page gives visitors the information of the product along with the best price.
This page is particularly helpful when it comes to less popular brand or the phones that are available only on online stores. Our page has the list of all mobiles price in India as well, so that you dont miss on the latest and the upcoming phones.
All of us want the best of phones, some can`t afford it and some of us wish it came at a slightly lesser price or on EMI. The smartphone price always differs according to the store. Our list not only gives you the best price of your phone, but also has the link to take you to online store where you can check the mode of payments or cash back offers if available.
To sum up you can select the phone according to your preferred brands, specifications and availability in retail stores because the mobile price in Delhi may be higher or lesser in comparison to the other cities too. All the mobile prices listed in India from the top online stores is available on 91mobiles.
The best Samsung phone with 4GB RAM and 64GB ROM under Rs 30000 isSamsung Galaxy C9 Pro, priced at Rs. 29,399. It is powered by 1.95GHz Octa-Core Snapdragon 653 processor bundled with 6GB of RAM for a beast-like performance and multitasks on heavy games and apps. 16 MP primary camera and a 16 MP front camera.The camera quality of this phone is crisp and clear and it also offers Super AMOLED display which is one of the best displays in that price range.
If you wish to save some money, you can buySamsung Galaxy On7 Prime 64GB, available at Rs 13,990. It is powered by a 1.6 GHz Octa-Core processor bundled with 4GB RAM for smooth performance. It features a 13MP camera both on the front and the rear for clear pictures. It has a 64GB internal memory and packs in a battery of 3300mAh enough to perform all your daily tasks.
You also have the option ofSamsung Galaxy C7 Prowhich is priced at Rs. 24,099 and is powered by 2.2GHz Octa-Core Snapdragon 626 processor bundled with 4GB of RAM toprovide awesome performance along with optimized battery use. 16 MP primary camera and a16 MP front camera to capture all your precious moments in high quality. It supports fast charging and has a battery capacity of 3300mAh so you always stay online.
Verdict:Samsung Galaxy C9 Pro will surely be a better choice. It is packed with powerful features including processor, battery, and display. Camera quality is also great and better as compared to its peers.
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