Washing machine mixer
Publish: 2021-05-02 00:06:33
1. The washing equipment depends on how you wash the ore. if you wash the ore, the raw materials should not be too large. You can directly use a spiral washing machine or a high-frequency screen, vibrating stone washing machine, spiral chute, shaker, etc. different raw materials have different washing methods. When washing the ore, you should choose the equipment according to the output
2. First of all, you need to determine the mud content of your stone. If the mud content is large, you can use spiral washer or roller washer. If it is small, you can directly use a vibrating washer. It is cheap and has large output.
3.
Spiral stone washer is used for desliming and screening of large amount of sand and stone in construction site, sand and stone plant, prefabrication plant and hydropower site, and also for ore separation. It can effectively handle the materials within 0-30mm, and separate the soil and ash powder on the materials into clean materials. The machine has the advantages of simple structure, easy maintenance and high washing efficiency. Spiral sand washing machine is divided into double screw and single screw. Compared with the single screw sand washing machine, the double screw stone washing machine has the advantages of high efficiency and large output, and can handle materials within 0-30mm
the double screw washer has the advantages of simple structure, easy maintenance and high washing efficiency
the rotor of the double screw stone washer adopts the central structure, the spiral blade is installed on the central shaft, and the recer is connected to the central shaft to work. With the help of the principle that the specific gravity of solid particles is different, so the settling velocity in liquid is different, an ore cleaning equipment for mechanical extension is developed.
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6. A complete set of beneficiation and metallurgy process
Gold beneficiation
crushing and grinding of gold ore
the content of gold in the ore is very low. In order to extract gold, it is necessary to crush and grind the ore and preconcentrate or separate gold from the ore by mineral processing. According to the investigation, jaw crusher is often used in China's gold concentrators for coarse crushing, standard cone crusher for medium crushing, and short head cone crusher and counter roller crusher for fine crushing. Medium and small gold concentrators mostly adopt two-stage one closed circuit crushing process, while large gold concentrators adopt three-stage one closed circuit crushing process<
Gold beneficiation gravity separation technology
gravity separation and flotation are widely used in gold beneficiation, and gravity separation plays a very important role in placer gold proction
gravity separation is widely used in rock gold mines. It is mostly used as an auxiliary process to recover coarse gold in grinding circuit, which creates favorable conditions for flotation and cyanidation process, improves beneficiation indexes, increases the total recovery of gold, and plays a positive role in increasing output and recing cost<
more than 10 gold concentrators in Shandong Province have adopted gravity separation process, the average total recovery rate can be increased by 2% ~ 3%, and the enterprise has good economic benefits. According to incomplete statistics, it can make a profit of several million yuan per year. Henan, Hunan, Inner Mongolia and other provinces (regions) have also achieved good results, the main equipment used are chute, shaker, jig and short cone cyclone<
Gold beneficiation - flotation technology
flotation method is widely used in rock gold mines. According to the survey, about 80% of rock gold mines in China adopt flotation method for gold separation, and the concentrate proced is mostly sent to gold smelters for treatment
there are usually two kinds of flotation processes: preferential flotation and mixed flotation. In recent years, new progress has been made in technological process improvement and reagent addition system, and flotation recovery has been improved significantly. According to the investigation results of flotation process indexes of more than 40 gold concentrators in China, the flotation recovery rate of sulfide ore is 90%, and a few of them are as high as 95% ~ 97%; The recovery of oxide ore is about 75%; Some of them are 80% - 85%
in recent years, there are a lot of innovation and scientific research achievements in flotation process, and the effect is obvious. Stage grinding flotation process and gravity flotation combined process are the main trend of flotation technology development in China. For example, Xiangxi Gold Mine adopts gravity flotation combined process to grind ore in stages and separate ore in stages, which can obtain better indexes and increase recovery by more than 6%; Jiaojia gold mine, Wulong gold mine, Wenyu Gold Mine and Dongchuang gold mine have also achieved certain results
of course, like other methods, flotation method is not omnipotent, and it is impossible to be effective for all gold bearing ores. The ore properties should be mainly considered, and various argumentation and tests should be carried out when selecting the technological process. In recent years, in order to improve the separation effect, in the process of continuous improvement, many improvements and researches have been made on the reagent addition system and mixed medication, and new progress has been made in the automatic control of dosing<
gold extraction process of gold beneficiation
gold extraction by mixed mercury method
mixed mercury method is an ancient gold extraction process, which is simple, economical and suitable for the recovery of coarse-grained monomer gold. This method is still used in many gold mines in China. With the development of gold proction and the progress of science and technology, the process of extracting gold by mixed mercury method has been improved and perfected. Due to the increasingly stringent requirements of environmental protection, some mines have cancelled the mercury mixing operation and replaced it by gravity separation, flotation and cyanidation
in the proction of gold, the process of extracting gold by mixed mercury method still plays an important role, and has been applied at home and abroad. At present, this technology has been applied in many gold mines, such as Zhangjiakou, Hebei, Ergou, Liaoning, Jiapigou, Jilin and Yinan, Shandong. Liaoning Ergou gold mine was originally a single flotation process. According to the nature of ore, it was changed into a combined process of mixed mercury and flotation. The total recovery was increased by 78.1% (the recovery of mixed mercury was 64.6%), the grade of tailings was reced from 0.74g/t to 0.32g/t, and the annual benefit was 1.58 million yuan. The key to the process of gold extraction by mixed mercury method is how to take protective measures to eliminate mercury pollution<
cyanidation gold extraction process
cyanidation gold extraction process is the main method to extract gold from ore or concentrate. The process of gold extraction by cyanidation includes: cyanidation leaching, washing and filtration of leaching pulp, extraction of gold from cyanidation solution or cyanidation pulp and smelting of finished procts. There are two kinds of gold extraction processes in the existing cyanidation plants of gold mines in China. One is the so-called conventional cyanidation process (CCD method and CCF method) in which the thickener is used for continuous countercurrent washing and zinc powder is used to replace the precipitation to recover gold. The other is that there is no need for filtration and washing, CIP process and CIL process were used to recover gold from cyanide pulp directly by activated carbon adsorption< The conventional cyanidation process can be divided into two types according to the different materials: one is the cyanidation plant which processes flotation gold concentrate or mixed mercury and gravity tailings. Most of them are large state-owned mines. For example, Jinchangyu in Hebei Province; Wulong, Liaoning, Yangzhaiyu, Henan; Zhaoyuan, Xincheng, Jiaojia and Sanshan gold mines in Shandong Province. The other is a gold extraction plant which processes argillaceous oxide ore and uses whole slime stirring cyanidation. Such as Jilin trench; Tuanjiegou, Heilongjiang Province; Xinqiao gold and silver mine in Anhui Province. As early as 1930s, cyanidation process has been used in China. During 1936-1938, Jinguashi gold mine in Taiwan used cyanidation zinc powder replacement process to extract gold with an annual output of 150000 taels. After entering the 1960s, in order to adapt to the development of national economy and vigorously develop the proction of mineral gold, the intermittent mechanical agitation cyanidation process and continuous agitation cyanidation process were successively adopted in some mines to replace the percolation cyanidation process. In 1967, the continuous mechanical agitation cyanidation process was first realized in Lingshan and Linglong gold concentrators of Zhaoyuan gold mine, Shandong Province. The cyanidation rate increased from 70% to 93.23%. Since then, the continuous mechanical agitation cyanidation process has been rapidly promoted in major gold mines in China
in recent years, new progress has been made in the scientific research of new processes such as thiourea extraction, thiosulfate extraction, preoxidation bacterial leaching, pressure catalytic leaching and resin adsorption. In 1979, Changchun Gold Research Institute successfully carried out the test of thiourea gold extraction. In 1984, a thiourea gold extraction workshop was built in Longshui mine, Guangxi, with a daily processing capacity of 10-20t of flotation gold concentrate. Although other processes are in the stage of experimental research and are preparing to be put into operation, it is enough to show that the gold extraction technology in China has developed to a new level< In China's gold resources, low-grade oxidized ores account for a certain proportion, so it is not economical to use the conventional cyanidation process to extract gold from such ores, but the heap leaching process still has economic benefits. At the end of 1970s, China began to study the heap leaching process of low-grade gold bearing oxide ore. after the successful small-scale proction of Hushan gold mine in Dandong, Liaoning Province, it was successively applied in some mines in Linghu, Yindongpo, Mojiang, Chongli, Hebei, Chifeng, Inner Mongolia and other areas, with satisfactory economic results, It opens up a way for the development and utilization of low grade gold bearing oxide ore. The heap leaching process has developed rapidly because of its simple process, easy operation, low investment, good benefit and fast start-up. The application of granulation technology and activated carbon adsorption column, as well as the development of gold loaded carbon desorption electrodeposition process, have added new vitality to the popularization and application of heap leaching gold extraction process<
gold smelting and recovery
gold smelting is the last process in gold proction, and its proct is finished gold. Smelting can be divided into roughing and refining. The refined and rough procts are alloy (commonly known as quality gold). Most of the local gold in China's gold mines is quality gold, which is sold directly to banks. Gold rich ore blocks and various gold concentrates are transported to non-ferrous smelters for processing and refining of finished gold (commonly known as gold content). Over the past 40 years since the founding of the people's Republic of China, gold smelting and comprehensive recovery have developed rapidly, the level of smelting technology and equipment has been continuously improved, and the smelting cost has been decreasing, which has promoted the development of gold proction< Before the 1970s, gold proction was in the initial stage of development. Except for a few mines which began to use cyanidation process, the local gold was mainly smelted from natural gold and concentrate from placer gravity separation and mercury paste from mixed mercury process, Local gold accounts for only 30% of the total output, and 70% of the gold is recovered by nonferrous smelters< Since 1970, gold proction has been developing graally, cyanidation technology has been widely used, and the amount of local gold in mines has been increasing. In 1985, the output of finished gold in mines accounted for 70% of the national gold output, and most of the concentrate procts proced by concentrators were proced by cyanidation
the traditional crucible method is mostly used for in-situ smelting in mines. Due to the different proction process and material properties, the gold content of the resultant gold is also different. Because the gold content is not high or the silver content is not priced, some mines adopt the chemical method to remove impurities, remelting or electrolysis method to separate and refine gold and silver in order to improve the quality and economic benefits
recovery of associated gold in nonferrous smelters
in gold proction, the recovery of associated gold from polymetallic ore occupies a considerable position. Gold, copper, lead and other non-ferrous metals are selected into the concentrate. In copper and lead smelting, gold and silver are recovered. In order to increase gold proction, some non-ferrous smelters in China have built comprehensive precious metal recovery workshops. By 1985, there were more than 20 smelters in China. In addition to Shenyang smelter, Zhuzhou Smelter, Shanghai smelter, Yunnan Smelter, Chongqing smelter, Wuhan smelter, Fuchunjiang smelter, Tianjin smelter, Taiyuan smelter, etc. Among them, the output of associated gold in the three major smelters of Shenyang smelter, Shangye smelter and Zhuzhou Smelter accounts for more than 90% of the total output of associated gold in China, which is an important force in China's gold proction. The recovery of associated gold in these enterprises is based on the fact that in the process of copper and lead smelting, gold and silver are enriched in the crude copper and lead. During the electrolytic refining of crude copper and lead, gold and silver are deposited in the electrolytic anode slime. Therefore, extracting gold and silver from the anode slime is the main way to recover associated gold and silver.
Gold beneficiation
crushing and grinding of gold ore
the content of gold in the ore is very low. In order to extract gold, it is necessary to crush and grind the ore and preconcentrate or separate gold from the ore by mineral processing. According to the investigation, jaw crusher is often used in China's gold concentrators for coarse crushing, standard cone crusher for medium crushing, and short head cone crusher and counter roller crusher for fine crushing. Medium and small gold concentrators mostly adopt two-stage one closed circuit crushing process, while large gold concentrators adopt three-stage one closed circuit crushing process<
Gold beneficiation gravity separation technology
gravity separation and flotation are widely used in gold beneficiation, and gravity separation plays a very important role in placer gold proction
gravity separation is widely used in rock gold mines. It is mostly used as an auxiliary process to recover coarse gold in grinding circuit, which creates favorable conditions for flotation and cyanidation process, improves beneficiation indexes, increases the total recovery of gold, and plays a positive role in increasing output and recing cost<
more than 10 gold concentrators in Shandong Province have adopted gravity separation process, the average total recovery rate can be increased by 2% ~ 3%, and the enterprise has good economic benefits. According to incomplete statistics, it can make a profit of several million yuan per year. Henan, Hunan, Inner Mongolia and other provinces (regions) have also achieved good results, the main equipment used are chute, shaker, jig and short cone cyclone<
Gold beneficiation - flotation technology
flotation method is widely used in rock gold mines. According to the survey, about 80% of rock gold mines in China adopt flotation method for gold separation, and the concentrate proced is mostly sent to gold smelters for treatment
there are usually two kinds of flotation processes: preferential flotation and mixed flotation. In recent years, new progress has been made in technological process improvement and reagent addition system, and flotation recovery has been improved significantly. According to the investigation results of flotation process indexes of more than 40 gold concentrators in China, the flotation recovery rate of sulfide ore is 90%, and a few of them are as high as 95% ~ 97%; The recovery of oxide ore is about 75%; Some of them are 80% - 85%
in recent years, there are a lot of innovation and scientific research achievements in flotation process, and the effect is obvious. Stage grinding flotation process and gravity flotation combined process are the main trend of flotation technology development in China. For example, Xiangxi Gold Mine adopts gravity flotation combined process to grind ore in stages and separate ore in stages, which can obtain better indexes and increase recovery by more than 6%; Jiaojia gold mine, Wulong gold mine, Wenyu Gold Mine and Dongchuang gold mine have also achieved certain results
of course, like other methods, flotation method is not omnipotent, and it is impossible to be effective for all gold bearing ores. The ore properties should be mainly considered, and various argumentation and tests should be carried out when selecting the technological process. In recent years, in order to improve the separation effect, in the process of continuous improvement, many improvements and researches have been made on the reagent addition system and mixed medication, and new progress has been made in the automatic control of dosing<
gold extraction process of gold beneficiation
gold extraction by mixed mercury method
mixed mercury method is an ancient gold extraction process, which is simple, economical and suitable for the recovery of coarse-grained monomer gold. This method is still used in many gold mines in China. With the development of gold proction and the progress of science and technology, the process of extracting gold by mixed mercury method has been improved and perfected. Due to the increasingly stringent requirements of environmental protection, some mines have cancelled the mercury mixing operation and replaced it by gravity separation, flotation and cyanidation
in the proction of gold, the process of extracting gold by mixed mercury method still plays an important role, and has been applied at home and abroad. At present, this technology has been applied in many gold mines, such as Zhangjiakou, Hebei, Ergou, Liaoning, Jiapigou, Jilin and Yinan, Shandong. Liaoning Ergou gold mine was originally a single flotation process. According to the nature of ore, it was changed into a combined process of mixed mercury and flotation. The total recovery was increased by 78.1% (the recovery of mixed mercury was 64.6%), the grade of tailings was reced from 0.74g/t to 0.32g/t, and the annual benefit was 1.58 million yuan. The key to the process of gold extraction by mixed mercury method is how to take protective measures to eliminate mercury pollution<
cyanidation gold extraction process
cyanidation gold extraction process is the main method to extract gold from ore or concentrate. The process of gold extraction by cyanidation includes: cyanidation leaching, washing and filtration of leaching pulp, extraction of gold from cyanidation solution or cyanidation pulp and smelting of finished procts. There are two kinds of gold extraction processes in the existing cyanidation plants of gold mines in China. One is the so-called conventional cyanidation process (CCD method and CCF method) in which the thickener is used for continuous countercurrent washing and zinc powder is used to replace the precipitation to recover gold. The other is that there is no need for filtration and washing, CIP process and CIL process were used to recover gold from cyanide pulp directly by activated carbon adsorption< The conventional cyanidation process can be divided into two types according to the different materials: one is the cyanidation plant which processes flotation gold concentrate or mixed mercury and gravity tailings. Most of them are large state-owned mines. For example, Jinchangyu in Hebei Province; Wulong, Liaoning, Yangzhaiyu, Henan; Zhaoyuan, Xincheng, Jiaojia and Sanshan gold mines in Shandong Province. The other is a gold extraction plant which processes argillaceous oxide ore and uses whole slime stirring cyanidation. Such as Jilin trench; Tuanjiegou, Heilongjiang Province; Xinqiao gold and silver mine in Anhui Province. As early as 1930s, cyanidation process has been used in China. During 1936-1938, Jinguashi gold mine in Taiwan used cyanidation zinc powder replacement process to extract gold with an annual output of 150000 taels. After entering the 1960s, in order to adapt to the development of national economy and vigorously develop the proction of mineral gold, the intermittent mechanical agitation cyanidation process and continuous agitation cyanidation process were successively adopted in some mines to replace the percolation cyanidation process. In 1967, the continuous mechanical agitation cyanidation process was first realized in Lingshan and Linglong gold concentrators of Zhaoyuan gold mine, Shandong Province. The cyanidation rate increased from 70% to 93.23%. Since then, the continuous mechanical agitation cyanidation process has been rapidly promoted in major gold mines in China
in recent years, new progress has been made in the scientific research of new processes such as thiourea extraction, thiosulfate extraction, preoxidation bacterial leaching, pressure catalytic leaching and resin adsorption. In 1979, Changchun Gold Research Institute successfully carried out the test of thiourea gold extraction. In 1984, a thiourea gold extraction workshop was built in Longshui mine, Guangxi, with a daily processing capacity of 10-20t of flotation gold concentrate. Although other processes are in the stage of experimental research and are preparing to be put into operation, it is enough to show that the gold extraction technology in China has developed to a new level< In China's gold resources, low-grade oxidized ores account for a certain proportion, so it is not economical to use the conventional cyanidation process to extract gold from such ores, but the heap leaching process still has economic benefits. At the end of 1970s, China began to study the heap leaching process of low-grade gold bearing oxide ore. after the successful small-scale proction of Hushan gold mine in Dandong, Liaoning Province, it was successively applied in some mines in Linghu, Yindongpo, Mojiang, Chongli, Hebei, Chifeng, Inner Mongolia and other areas, with satisfactory economic results, It opens up a way for the development and utilization of low grade gold bearing oxide ore. The heap leaching process has developed rapidly because of its simple process, easy operation, low investment, good benefit and fast start-up. The application of granulation technology and activated carbon adsorption column, as well as the development of gold loaded carbon desorption electrodeposition process, have added new vitality to the popularization and application of heap leaching gold extraction process<
gold smelting and recovery
gold smelting is the last process in gold proction, and its proct is finished gold. Smelting can be divided into roughing and refining. The refined and rough procts are alloy (commonly known as quality gold). Most of the local gold in China's gold mines is quality gold, which is sold directly to banks. Gold rich ore blocks and various gold concentrates are transported to non-ferrous smelters for processing and refining of finished gold (commonly known as gold content). Over the past 40 years since the founding of the people's Republic of China, gold smelting and comprehensive recovery have developed rapidly, the level of smelting technology and equipment has been continuously improved, and the smelting cost has been decreasing, which has promoted the development of gold proction< Before the 1970s, gold proction was in the initial stage of development. Except for a few mines which began to use cyanidation process, the local gold was mainly smelted from natural gold and concentrate from placer gravity separation and mercury paste from mixed mercury process, Local gold accounts for only 30% of the total output, and 70% of the gold is recovered by nonferrous smelters< Since 1970, gold proction has been developing graally, cyanidation technology has been widely used, and the amount of local gold in mines has been increasing. In 1985, the output of finished gold in mines accounted for 70% of the national gold output, and most of the concentrate procts proced by concentrators were proced by cyanidation
the traditional crucible method is mostly used for in-situ smelting in mines. Due to the different proction process and material properties, the gold content of the resultant gold is also different. Because the gold content is not high or the silver content is not priced, some mines adopt the chemical method to remove impurities, remelting or electrolysis method to separate and refine gold and silver in order to improve the quality and economic benefits
recovery of associated gold in nonferrous smelters
in gold proction, the recovery of associated gold from polymetallic ore occupies a considerable position. Gold, copper, lead and other non-ferrous metals are selected into the concentrate. In copper and lead smelting, gold and silver are recovered. In order to increase gold proction, some non-ferrous smelters in China have built comprehensive precious metal recovery workshops. By 1985, there were more than 20 smelters in China. In addition to Shenyang smelter, Zhuzhou Smelter, Shanghai smelter, Yunnan Smelter, Chongqing smelter, Wuhan smelter, Fuchunjiang smelter, Tianjin smelter, Taiyuan smelter, etc. Among them, the output of associated gold in the three major smelters of Shenyang smelter, Shangye smelter and Zhuzhou Smelter accounts for more than 90% of the total output of associated gold in China, which is an important force in China's gold proction. The recovery of associated gold in these enterprises is based on the fact that in the process of copper and lead smelting, gold and silver are enriched in the crude copper and lead. During the electrolytic refining of crude copper and lead, gold and silver are deposited in the electrolytic anode slime. Therefore, extracting gold and silver from the anode slime is the main way to recover associated gold and silver.
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8.
bus line: no.m507, the whole journey is about 11.8km
1. Walk about 250m from Bao'an center to Lijing international station
2. Take no.m507, after 19 stops, to Shenzhen Bay Port station
3. Walk about 100m to Shenzhen Bay port
9.
bus route: Line 11 → line 2 → m299, the whole journey is about 12.4km
1. Walk about 570m from Bao'an District to Bao'an station
2. Take line 11, pass 3 stops, reach Houhai station
3. Walk about 300m, transfer to line 2
4. Take line 2, pass 1 stop, reach Dengliang station
5. Walk about 680m, reach Houhaibin intersection station
< P > 6 Take bus m299, pass 1 stop, then reach Shenzhen Bay Port Station7, walk about 30 meters to Shenzhen Bay port
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