Therefore, moderate feeding speed can ensure full contact between grinding media and materials, improving the ball mill efficiency and reducing energy consumption.
Firstwill base on stone gold capacity and feeding size, then can choose the best machine, we have three different flow chat, one if capacity is for 1 ton per hour, and feeding size 0-30mm, it can feeding to wet pen mill, after wet pen mill to shaking table.Two if capacity is for 1-2 tons per hour, feeding size is 0-130mm, it can use jaw crusher, then to hammer crusher, last use two sets shaking table.Three if capacity is greaterthen 2 tons per hour, and feeding size is greaterthen 130mm, it need use two steps jaw crusher.Then use ball mill + spiral classifier.Last to shaking table.
Combination beneficiation plant adopts a combined technology of gravity beneficiation, magnetic beneficiation and flotation beneficiation.In this plant, raw ore is sent into jaw crusher for the primary crushing.Then discharged materials of which the size suits the feeder of ball mill is sent regularly by vibrating feeder to the ball mill for being crushed and ground, and then enters the next stage for being separated.Spiral classifier is used to clean mud and classify mixed mineral according to the different grains with different specific gravities and sedimentation rates in liquid.The classified mineral grains are separated by magnetic separator.The magnetic materials are sent to tailings ponds.The medium-size grains excluding the magnetic materials are sent into jigger for being separated, and other materials are classified once again.The large-size grains are ground and then classified, and the classified materials are separated and dewatered.Finally they are concentrated for being separated.
The ball mill is equipped with a cylindrical rotating device and two bins, which can rotate by gears.The discharge port is straight, and there are also air intake devices, dust exhaust pipes, and dust collectors.
The ball mill has high production capacity, strong adaptability, fine discharge particle size, easy for fine grinding, but its over-pulverization is serious.
We have the expertise to manufacture heavy-duty and versatile ball mills.Our dependable solutions are supported by our highly trained service department.We work with you to keep your products running smoothly and we promise to work with you long after the sale.From product design to replacement parts; we are here to help! we are known for creating extremely durable ball mills which require low maintenance.
Hot sell industrial ball mill in china the series of ball mill is the discontinuous wet ball milling equipment,as fine grinding machine.In order to get the best effciency and economic benefit,the raw material should be milled in secondary fineness of crushed state.
John greeve, managing director for mutiny, said the decision to purchase the ball mill from citic was made after an extensive review process which included independent analysis by renowned gold plant specialists gr engineering services.
Ball mill loading (wet milling)when charging a ball mill, ceramic lined mill, pebble mill, jar mill or laboratory jar use on a jar rolling mill it is important to have the correct amount of media and correct amount of product.Charging a wet mill the general operation of a grinding mill is to have the product impacted between the balls as they tumble.Unlike dry milling, wet milling is more straight forward and more forgiving in terms of charging the product.As with dry milling there should be at least 25% liquid to fill the void space plus a bit more to insure the balls are striking product and not each other.Of course the surface tension of the liquid used will greatly affect the ability of the solids to be both suspended in the liquid and to form a film on the grinding media.Product viscosity in a factor in wet milling.The more viscous the liquid the slower the media velocity (stokes law) and, therefore, the less energy imparted into the product.Again following stokes law, the smaller the media, and the greater it surfaces area to and the slower its velocity falling through the fluid.Common starting points for the viscosity limits: <1000 cps for alumina media <2000 cps for steel media the starting point for ball mill media and liquid charging is generally as follows:50% media chargeassuming 26% void space between spherical balls (non-spherical, irregularly shaped and mixed-size media will increase or decrease the free space)50% x 26% = 13% free spaceadd to this another 45% to 50% above the ball charge for total of 58% to 63% product loading.This level of liquid loading should leave some air space above the liquid to allow for expansion of the liquid as it heats up during the milling process.So as a rule of thumb we use a maximum of 60% liquid loading.
The jk bond ball mill (jkbbm) test, is a locked cycle grindability test conducted using a standard laboratory bond ball mill with the same steel ball charge and material feed size (100% passing 3.35 mm) as the bond ball mill work index test.
In this way, the inside machine will have a smooth ventilation and the dust leak problem can also be fundamentally solved.At the same time, the air locking system is also needed to improved, otherwise, the air blew by the air fun will be pumped out from the material discharging mouth which will form a air circuit and there will be no air inside the milling equipment.At present, many ball mill and other mining machines manufacturing companies add flap valve on the material discharging mouth, but it does not have ideal function so that the customers will have to install a air locking device which will increase the cost.
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