gold ore wheel wet grinding mill bihar

wet pan mill and supporting amalgam process

The preliminary design steps of the process are as follows: smashing the coarse crushing - using the drop directly to the second fine crushing - transferring the silo to the crusher - the silo using the vibrating feeder to the small chute, flushing with water to the roller, feeding The speed of the feeding of the machine can be adjusted to the size - the screen before the roller - the self-made disperser before the roller - the mercury plate - the amalgamation machine - the chute with the sticky gold blanket - the tailings pond - the tail The sewage pump is pumped away and drained.

The advantages of the process are: low investment, low equipment, short cycle, quick effect, low process requirements and simple operation. For the bare natural gold, coarse gold, small amount of minerals, high grade, where the site does not allow other processes, the advantages of this process are obvious, but any beneficiation process needs to be based on minerality and site conditions, no best and most advanced Only the most suitable.

The disadvantage is that compared with other processes, the processing volume is slightly smaller, the loss of gold is large, and the gold and ultrafine grain gold and the dyed gold are not recovered. A part of the gold in the tailings can not be recycled. If the gold is mostly coarse gold, natural gold, or bare gold, the recovery rate will be very good. If it is symbiotic gold or associated gold ultrafine particles, the recovery rate will be very low. If it is wrapped gold or gold-impregnated, arsenic-containing carbon-copper-molybdenum-nickel and other polymetallic complexes, the recovery rate will not even be at all. .

To sum up, when choosing a mine, be cautious. It is not representative of the quality of the test. However, you can use the soil method to look at the recovery rate of the mine in advance. It is not suitable to use the roller mill to grind it. That is to shake it with a thick old porcelain bowl, grind the original ore into an old porcelain bowl, and wet it with water in the basin. Use a beer bottle or other bottle to grind back and forth, grind it, shake it with water, shake it to the end, see if you can see gold, you can see a star point, indicating that there is natural gold in the mine, such a ton. The mine can recover five to eight grams. How much gold is behind the shake, how much is the gold, how big is the gold grain to judge how many grams of gold can be recovered in a ton of mine, and it can be mastered after several times of practice.

When installing the roller, firstly, the base should be level and stable. The base should be poured with cement grouting 10cm-20cm. The bottom of the pit should be drained, or pumped with a small pump to avoid flooding the motor. When installing, the plate should be flat. The lower half of the half is lower, which will affect the yield and fineness. The solution is to install the base to be flat. The sand below the plate should be flattened. The thickness of the sand layer is about 5-6cm thick. Use the level to find the level and the plate to the surrounding circle. Also center, do not rely on more than half of the half, if you do not center, then start the roller will press the bottom of the plate, the surface of the plate is connected with cement to make the surface smooth and firm, no gaps. After installing the roller, do not paste the cement, start the roller for a few turns, press the porcelain is not empty, then paste the cement, if the cement is first paste, the sand underneath is virtual, when the roller is pressed on the top, the surrounding There will be gaps in the cement. When the new roller is worn for a few hours, stop it and tighten the screw. Also check if the screws in each part are loose. When the roller is removed or the plate is changed, the surrounding cement and the sand at the bottom of the plate cannot be directly discarded. The cement can be broken up and the bottom sand is mixed with mercury to recover the gold that is normally leaked inside.

All the bearings on the roller are installed with as much butter as possible. In the middle, the large shaft usually drains the oil. When it rains or stops working for a long time, it is necessary to regularly refuel and maintain. The gearbox can't be lack of oil, too much, half is good. More heat is not used, it is not too good, general oil can be. When adding oil, mix the butter together to increase the viscosity. The order of production is to first put the water in the roller, then start the roller, and then feed the mine, prohibiting the emergency start. If the roller is full during the stop, the roller should be turned in the direction of the roller before starting again. Use a spade to shovel some, thinner, and cushioning, so that the hard start will hit the gears and the motor in the gearbox. If you want to change the speed of the drum, it can be adjusted by changing the pulley of the motor. The mesh screen can be selected according to the nature and output of the mine.

If there is no other auxiliary recycling equipment behind the gold-plating machine, it is better to use 1200 or less in the gold recovery of the gold-smelting machine. It is too big to run the gold. The water opening of the water tray cannot be high or low. How much, oxidation is still natural, the water outlet is too high, the milled pulp can not get out, the slurry in the mill is as turbid as the slurry, which is not conducive to the precipitation of gold, no output and also run gold, too low gold will be driven by the wheel The water splashes together with the loss of the slurry, this high and low problem, I have to explore several times, the best adjustment to the best height.

Before the original ore is broken, lime or caustic should be added to the original ore. One ton of mine is about three to five kilograms of lime, depending on the amount of sulfide. Because it is mined under alkaline conditions, it is beneficial to the differentiation of ore, the clarification of water and the precipitation of gold. More conducive to the recovery of gold.

When grinding, there should be no batteries, oil, or butter in the water and in the mine. Edible oil and oily substances will contaminate the surface of the gold particles, which will affect the recovery of mercury. It can be appropriate to pour some alkaline things, such as washing powder, to acid, oil, and decontamination.

When grinding, first pour mercury into the mill at the beginning of the production of the mill. When you want to clear the mill, when the mill is not much, you can drop seven to eight pounds of mercury and turn it off after seven or eight turns. Roll the water, use a small water pump to drain the water in the mill, then use a small iron shovel to shovel the material in the shovel with the mercury, then shake the mercury out of the basin, pour it in a bowl with water, and then put the bowl in the basin. In the water, rinse the impurities in the bowl with water, then spread the red cloth on the other bowl, pour the mercury into the red cloth, lift the red cloth, pinch the mouth, and the other hand is hard. Under the screw, mercury will be filtered from the red bristles, and the rest is mercury.

After removing the mercury from the mercury slag that has been removed from the mill, it is poured back into the mill because mercury and gold remain in it, and then it is poured back to continue grinding.

The material of the mercury plate is silver plated on the copper plate. The difference between silver plating and silver plating, such as plating two hundred grams, looks smoother than the plating of only one hundred grams, and the surface has no trace.

The mercury plate is placed at the water outlet of the roller. Before the slurry enters the mercury plate, a slurry dispersing device should be made at the water outlet to allow the slurry to be evenly dispersed through the mercury plate, so as not to cover the dead angle. The slope of the mercury plate depends on the concentration of the slurry. Generally, it is between 13 and 20 degrees. The slope is large. The slurry passes through the mercury plate for a short time. The contact time with the mercury plate is short, and the adsorption force is also poor. Otherwise, the slope is opposite. Small, the time of contact between the slurry and the mercury plate is long, but the slurry will accumulate on the mercury plate, and the effect is not good.

The top piece of the mercury plate is the first to be saturated, the other side is saturated and then the other side is saturated. The two sides are saturated, the second piece is placed in the first position, and so on, and then the new one is taken. The block is placed in the last position. After the mercury plate is saturated, the mercury dropped on the mercury plate will flow down the mercury plate, not staying and adsorbing on the mercury plate, and the color of the mercury plate is no longer so white, but yellow.

There is a mercury collection tank under the mercury plate to prevent the outflow of mercury. The use of the mercury plate is also determined according to the quality of the mercury plate and the nature and size of the ore. Mercury plate usually has a lot of mercury, more moisture, no need to repair or stop production, the mercury plate is best covered with moist slime and water. When the mercury plate is scraped with mercury, it is scraped with a foam foam sole, which does not hurt the mercury plate and is clean. It is also worthwhile to use the scrapped mercury board, because the gold remains in the inside and the gold is absorbed. When the old one is replaced, the mercury board will be sold to you, so you can't throw it.

The slurry passes through the mercury plate and enters the amalgamation machine. In the inner bin containing steel balls and mercury, the amalgamation machine rotates while the slurry is evenly stirred by the steel ball to achieve better contact recovery of mercury and slurry and gold. Regarding how long it takes to produce mercury in a mercury amalgamation machine, it depends on the grade of the ore and the amount of mercury placed. The content of ore is high, the recovery rate is high, and the amount of mercury placed is less, so it is clearer, but vice versa. Behind the discharge port of the amalgamation machine, a mercury collection tank should be added to prevent the mercury from running at the speed of the amalgamation machine.

Behind the amalgamation machine, a chute is placed and a blanket is laid to recover the gold and other minerals. The slope of the chute can be adjusted according to the concentration of the slurry. The slurry is transferred to the tailings pond, diluted, and pumped out by a slurry pump or sewage pump. For example, the 900*2100 amalgamation machine, about 35-40kg of steel balls, can not be too much, too much will run mercury, will make mercury powder.

Mercury will be powdered after being contaminated and will lose the effect of gold. Some of the following conditions can make mercury brittle and pulverize. First, there are too many bismuth metals in the iron sulphur and zinc in the mine. Second, the mercury is contaminated. The butter battery enters the mercury. A passivation film is formed on the surface of the mercury to separate the mercury and make the mercury powder. Fine particles. The solution is to stop the oil from entering the mine or in the water, to purify the mercury by steaming the mercury, or to remove the impurities with 20% dilute sulfuric acid or dilute nitric acid to keep the mercury reactivated.

Put the mercury in the steamer, cover the lid, tighten the screw, connect the inlet and outlet water on the cooling water jacket, put the steamer on the stove, and gradually heat up. When the temperature rises to four hundred degrees, It is the best value for mercury evaporation. When mercury is heated from a normal temperature liquid, it becomes a gas. When the evaporated mercury encounters a cooling temperature of the water jacket, it is reduced to liquid mercury. After the water basin does not bubble, it can be put away. If the mercury is placed in the basin, you can also leave it. If you see the basin gradually become less and slower when you put it in the water, you should first take the mercury outlet from the water and let it slowly at room temperature. Cooling, you can't turn off the fire first, the temperature of the fire drops, and the steamer is still on the stove, and the outlet is still in the water, so the temperature in the steamer will form a difference, and the steamer will absorb the water in the basin. Not good can cause an explosion.

Look at the outlet tube of the steamer with two communicating holes, that is, the cooling system, using two pipes, one is connected to the water inlet, and the other is the water hole, when water enters the hole from the hole. When it is out, it cools the mercury vapor in the iron pipe inside. The mercury is reduced into liquid mercury in the iron pipe, and the mercury will drip down into the iron basin containing the water, so that the export iron pipe is not put. In the basin.

Before placing the mercury in the mercury evaporator, apply a gypsum powder, or graphite powder, talcum powder, or a layer of smoke around the steamer to prevent the temperature from being overheated in the steamer and steam. Mercury is connected.

The smelting of gold: the gold that has been steamed over mercury is commonly called sponge gold, and there is still a small amount of mercury and some bismuth metal remaining in it, which is purified at this time. First of all, the cockroaches should be placed on the stove to prevent moisture and unnecessary cracks and unnecessary losses. If the amount is small, if you use a porcelain crucible to burn directly with a cutting gun, you should first burn it from the porcelain crucible, then burn the porcelain crucible and then melt the sponge gold inside. After the sponge gold is boiled and red, the borax is poured into the crucible to form a slag, and the bismuth metal and impurities in the gold water are extracted. At this time, the smelt gold is called the quality gold. If higher purity is required, it is necessary to purify the beads.

Purification of the beads: Add silver to the sponge gold that has not been mentioned, the ratio of gold and silver is, gold 1:4 silver. Approximate value, no special requirements, no matter how much less. Then put it in the smelt and smelt together. After smelting into a boiling liquid, it is slowly poured into a stainless steel basin filled with water. Let the gold be in the shape of a bead, precipitate for a while, pour the water above, and then pour the nitric acid into the stainless steel basin. Slowly add nitric acid. If there are more barium in the gold beads, prevent the reaction from causing splashing. After the reaction is not big, put the stainless steel basin on the stove, the fire temperature is not too high, slowly warming up, once the nitric acid is not decomposed badly, the decomposed nitric acid is poured into another stainless steel basin, and then decomposed with nitric acid. Until the last pot does not take yellow-gray smoke, the smoke becomes white and basically decomposes. Pour the nitric acid into another pot, then pour the boiling water into the pot with gold until the water in the pot is not white, there is white, and there is silver in it. Don't dump the nitric acid and the later washed boiled water, because there is silver inside.

Let the water cool down, sprinkle with salt, sprinkle salt in a silver nitrate solution, convert silver nitrate to silver nitrate, silver and salt ratio: silver 1:3 salt. Probably, pick it up with a stick and see that the silver has become a white paste. Just put it there and precipitate it. If the salt is suitable, the water after the sedimentation is clear, and there is no white turbid color. After the precipitation is completed, the water is poured, and the zinc wire is placed in the silver chloride in the pot to be adsorbed and replaced. The specification is made of zinc wire of three millimeters. The zinc wire can be put faster, the back is slowed down, and the reaction is observed. After all the water has turned black, the zinc wire is put in and there is no reaction, so there is no need to put the zinc wire. At this time, the hydrochloric acid is poured, and the subsequent procedures and steps are the same as the previous gold.

Drain the water from the gold in the basin, put a layer of toilet paper on it, put it on the stove and dry it. The reason for covering a layer of toilet paper is to prevent the gold from smashing and causing loss. After the drying, the toilet paper is also burned. In the airless room, the dried gold is poured onto the object, and then it is directly put into the crucible to directly melt the mold. This color can reach 99 or more. Before the gold water is poured into the mold, the mold is first smoked with a layer, or a layer of graphite powder or talcum powder is used to prevent the gold and the mold from sticking together. The mold can adjust the size and thickness of the gold nugget. It is better that the nugget area is smaller and thicker, so that the color will be higher when the water is suspended.

home - gold grind machine

Introduction of double roller crusher: Double roller crusher is a roll type crushing machine with simple structure, less over crushing happens and the tooth shape, size, are arranged on roller can change along with the materials. Double roller crusher can be employed to crush hard and soft ore for coarse and fine crushing. Specification of

Introduction of double roller crusher: Double roller crusher is a roll type crushing machine with simple structure, less over crushing happens and the tooth shape, size, are arranged on roller can change along with the materials. Double roller crusher can be employed to crush hard and soft ore for coarse and fine crushing. Specification of

Introduction to Hammer Crusher Hammer crusher can crush medium-hard and crispy materials, such as limestone and coal with compression resistance less than 150Mpa. The main application of hammer crusher include: metallurgy, cement, mining, coal, building materials, electricity, and chemical industry and so on. Small hammer crusher is suitable for home or small factories, and can

Introduction to Hammer Crusher Hammer crusher can crush medium-hard and crispy materials, such as limestone and coal with compression resistance less than 150Mpa. The main application of hammer crusher include: metallurgy, cement, mining, coal, building materials, electricity, and chemical industry and so on. Small hammer crusher is suitable for home or small factories, and can

Description of Two-stage Crusher Two-stage Crusher is mainly composed of silos, conveying devices, high-speed hammers, motors, brackets and other parts. Two-stage Crusher has a wide range of applications. It is mainly applied to the crushing of coal gangue, carbon mud, coal slime, coal, and clean coal. Two-stage Crusher has no screen, no residual residue, 100%

Description of Two-stage Crusher Two-stage Crusher is mainly composed of silos, conveying devices, high-speed hammers, motors, brackets and other parts. Two-stage Crusher has a wide range of applications. It is mainly applied to the crushing of coal gangue, carbon mud, coal slime, coal, and clean coal. Two-stage Crusher has no screen, no residual residue, 100%

Thewetpan millis named by the diameter of roller. 1300, 1350, 1400, 1500, 1600 is suitable for selection of iron ore, molybdenum ore ,lead ore ,zinc ore, antimony ore and so on. 850, 900, 1000, 1100, 1200 is suitable for selection of gold ore. Astheir small investment, high yield, the production cost is

Thewetpan millis named by the diameter of roller. 1300, 1350, 1400, 1500, 1600 is suitable for selection of iron ore, molybdenum ore ,lead ore ,zinc ore, antimony ore and so on. 850, 900, 1000, 1100, 1200 is suitable for selection of gold ore. Astheir small investment, high yield, the production cost is

Gold Grind Machine Description: Gold grind machine will cooperate with materials and water to join in mixed , when they mix, the process will have a functions of stirring and squeezing, cone wet grinding machine can remove the air between materials, even stir, perfect moistening, can make material to be grind fineness. Gold Grind MachineCharacteristics:

Gold Grind Machine Description: Gold grind machine will cooperate with materials and water to join in mixed , when they mix, the process will have a functions of stirring and squeezing, cone wet grinding machine can remove the air between materials, even stir, perfect moistening, can make material to be grind fineness. Gold Grind MachineCharacteristics:

Wet Pan Mill for Grinding Gold Ore Brief Introduction: Wet Pan Mill for Grinding Gold Ore is widely used for selecting ferrous metals, nonferrous metals and nonmetals, as well as precious metals like gold and silver. It mainly consists of driving device, frame, water basin, grinding wheels and grinding base, etc. Wet Pan Mill for

Wet Pan Mill for Grinding Gold Ore Brief Introduction: Wet Pan Mill for Grinding Gold Ore is widely used for selecting ferrous metals, nonferrous metals and nonmetals, as well as precious metals like gold and silver. It mainly consists of driving device, frame, water basin, grinding wheels and grinding base, etc. Wet Pan Mill for

Wet pan mill (wet pan grinding mill) is also called wet grinding machine and gold grinding mill, its a modernized grinding machine, commonly used in the small and medium size concentrate factory. It is widely applied to the grinding and benefication of all kinds of metal minerals, non-metal minerals, rare metal and other materials. Such

Wet pan mill (wet pan grinding mill) is also called wet grinding machine and gold grinding mill, its a modernized grinding machine, commonly used in the small and medium size concentrate factory. It is widely applied to the grinding and benefication of all kinds of metal minerals, non-metal minerals, rare metal and other materials. Such

High quality mercury gold 1200 grinding Wet Pan Mill is used for grinding gold ore, especially small gold rock stone, which can grind into 100-150mesh. Many customers from Africa would like to import wet pan mill because of low cost and high productivity. The most important thing is that, with mercury, our customers can get

High quality mercury gold 1200 grinding Wet Pan Mill is used for grinding gold ore, especially small gold rock stone, which can grind into 100-150mesh. Many customers from Africa would like to import wet pan mill because of low cost and high productivity. The most important thing is that, with mercury, our customers can get

Check the sealing part of the equipment of the gold-rolling machine to ensure that its various humidity parts are normal and there is no leakage, if it is necessary to deal with it in time. In this part is very important, if it occurs leakage or abnormal phenomenon, it will have a great impact on

1. The operator must be qualified by the manufacturer. After fully understanding the structure and performance of the equipment, the operator can be employed for operation. The operator must abide by the relevant safety and handover system.2. Before the work, strictly follow the lubricating oil regulations, refuel, and keep the oil volume properly, the oil

1. Electric roller feeding speedThe feed rate is the amount of electricity that can be passed through the electric mill per unit time. When the ore feeding speed is very low, the amount of ore in the electric roller is small, not only the productivity is low, but also the result of the air play

The flank clearance and top clearance of the size gear of the gold-plating machine will cause the vibration of the pinion. Therefore, we must first check whether the flank clearance and top clearance of the large and small gears meet the requirements. The side clearance and top clearance of the gear drive should be appropriate.

what is a rod mill? (with picture)

A rod mill is an ore grinding mechanism that uses a number of loose steel rods within a rotating drum to provide its attrition or grinding action. An ore charge is added to the drum, and as it rotates, friction between the tumbling rods breaks the ore down into finer particles. Although similar in operation, a rod mill is often more effective than a ball mill as it requires lower rotational speeds and less steel to achieve the same results. It is, however, limited to maximum rod and drum lengths of approximately 20 feet (6 meters) and is generally only used for wet grinding processes. The rod mill also tends to suffer from accelerated drum liner and lifter wear due to the increased weight of the rods.

Mills of various types have been used for centuries to break solids or coarse particulate materials down into finer finished products. From the humble mortar and pestle through animal, wind, and water driven mills to the giant electrically driven versions common in modern industrial applications, all share one common characteristic: mechanical attrition or grinding. All mill types utilize a grinding process of one or another description to gradually reduce the size of the initial charge of material. In older mills, for example, this action was achieved by placing the coarse material between two mill stones and turning one against the other to produce a finer end product.

Modern rotary mills make apply the same principle by tumbling loose grinding elements around in a closed drum to which the charge material is added. Common examples are rod and ball mills, both of which are of the rotary drum type which rely on internal grinding agents to achieve their milling action. Unlike the ball mill which utilizes a large number of hardened steel balls to impart the grinding action, the rod mill uses steel rods lying within the drum and parallel to its axis. When the drum rotates, these rods roll around inside it, thereby crushing the feed material between them.

The rod mill is generally more efficient than the ball mill due to its more effective cascading action and the greater bearing surface offered by the rods. This means it can operate at lower speeds and with less grinding agents and producing less undesirable slimes byproduct. Rod mills do, however, require more attention during operation to prevent rod tangles and are generally ineffective at dry milling operations. They are also limited to a maximum rod length of approximately 20 feet (6 meters) which means they are generally smaller than ball mills. Rod mills also exhibit more liner and lifter wear than other mill types due to the comparatively high weights of the rods.