1 General Provision
1.0.1 This code is stipulated with a view to implement the national technical and economic policies，unify and standardize the plant process design technology requirements of metallurgical concentrator in the design，as well as to improve design quality and promote technological progress，in order to fully achieve utilization of mineral resources and ensure reasonable economy，environment protection，energy saving and safe production.
1.0.2 The code is applicable to the design of green field，modification and expansion construction of metallurgical concentrator project.
1.0.3 The metallurgical concentrator design shall be based on national conditions，actively and steadily adopt advanced technology from home and abroad as well as mature and reliable new process，new equipments and new materials.
1.0.4 Metallurgical concentrator design shall comply with not only the requirements stipulated in this code，but also those in the current relevant national standard.
2 Terms
2.0.1
mineral processing
mineral processing is the process to enrich one or more valuable minerals using the differences among the physical properties，chemical properties or physio-chemical properties of various minerals
2.0.2
ore
the ore is the rock that contains valuable minerals and has value for mining.
2.0.3
mineral
the mineral is the natural elementary substance or compound that has specific chemical composition，physical and chemical properties.It is the elementary unit of rock and ore.
2.0.4
raw ore
the raw ore is the one that is mined from mines without being processed by using mineral processing and other technology.
2.0.5
concentrate
the concentrate is the product that is obtained from raw ore after mineral processing operation with high content of useful component.
2.0.6
tailing
the tailings are the products obtained after mineral processing operation with low content of useful component.
2.0.7
middling
the middling is the intermediate product that is obtained after roughing with the content of useful component between concentrate and tailings，and required for further treatment.
2.0.8
grade
the grade is the mass fraction of certain component（such as element，compound and mineral，etc）in ore or beneficiated product，and commonly expressed using percentage or grams per ton.
2.0.9
yield
the yield is the percentage of the beneficiated product mass out of feeding ore mass.
2.0.10
recovery rate
the recovery rate is the percentage of certain useful component mass in the product out of the mass of this component contained in the feeding ore.
2.0.11
pre-beneficiation
the pre-beneficiation is the process of separating waste rock from ores before the grinding operation.
2.0.12
separation
the separation is the process of separating minerals from ores，also known as sorting.
2.0.13
roughing
the roughing is the operation or process to preliminarily separate the raw ores.
2.0.14
cleaning
the cleaning is the operation to carry out enrichment or impurity removal for roughing concentrate，or separating various useful components from mixed concentrate.
2.0.15
scavenging
the scavenging is the operation to further recycle the useful components from the roughing tailings.
2.0.16
operation rate of equipment
the operation rate of equipment is the percentage of the actual equipment operation hours out of total calendar hours.
3 Basic Requirement
3.0.1 Metallurgy concentrator shall be designed with sufficient design basis and complete design basis data.
3.0.2 The design process flow shall be based on the reviewed or proved test report and with reference to the operation practice of concentration plant with similar ore features.
3.0.3 Selection of equipment shall be in compliance with the following requirements:
1 Main equipments should be selected from the equipments that are technology advanced，reliable in production，energy saving and environmental protection；
2 Specifications and performance of auxiliary equipments shall match with those of main equipments；
3 Domestic and foreign obsolete equipments shall not be used.
3.0.4 The waste rock，the tailings，waste water，dust and harmful gas and generated noises etc.as discharged from Concentrator，shall be properly handled，with conformity to the current national regulations on environmental protection and occupational health and safety standards.
3.0.5 Concentrator should make full use of recycled water with the utilization rate of recycled water no less than 92%.
4 Mineral Processing Experiments
4.1 Representativeness of Samples
4.1.1 The mineral composition，ore texture and structure，element or compound content，composition distribution status，disseminated grain size characteristics，silt inclusion，moisture inclusion，and other physical and chemical properties of the ore samples shall be in conformity with the ore characteristics from the mining area or the mined ores as represented by the ore with the same grade and natural type.
4.1.2 The proportion of various grades and various types of the ore samples shall match the proportion of geological ore quantity and extracted ore quantity from the representative mining zones.
4.1.3 The ore sample shall be in conformity with the ore features from the representative mining zones in term of various grade class，average grade and grade frequency and distribution characteristics of useful and detrimental element.
4.1.4 According to the waste rock dilution rate during the mining process，the ore sample shall be mixed with the roof and floor rock and intercalary strata rock with corresponding quantity，the mineral composition and chemical constituent of which shall be similar with the actual ore from the mining process.
4.1.5 The ore sample shall be taken respectively，when the properties of the ores in oxidized ore zone，blending ore zone and primary ore zone are quite different，or when the properties of the ores are quite different between the earlier mining stage and later stage.When the samples cannot be mined respectively，the sample shall be mixed according to the actual mining proportions.
Standard
GB 50612-2010 Code for technological design of metallurgical concentrator (English Version)
Standard No.
GB 50612-2010
Status
valid
Language
English
File Format
PDF
Word Count
23000 words
Price(USD)
300.0
Implemented on
2011-2-1
Delivery
via email in 1 business day
Detail of GB 50612-2010
Standard No.
GB 50612-2010
English Name
Code for technological design of metallurgical concentrator
1 General Provision
1.0.1 This code is stipulated with a view to implement the national technical and economic policies，unify and standardize the plant process design technology requirements of metallurgical concentrator in the design，as well as to improve design quality and promote technological progress，in order to fully achieve utilization of mineral resources and ensure reasonable economy，environment protection，energy saving and safe production.
1.0.2 The code is applicable to the design of green field，modification and expansion construction of metallurgical concentrator project.
1.0.3 The metallurgical concentrator design shall be based on national conditions，actively and steadily adopt advanced technology from home and abroad as well as mature and reliable new process，new equipments and new materials.
1.0.4 Metallurgical concentrator design shall comply with not only the requirements stipulated in this code，but also those in the current relevant national standard.
2 Terms
2.0.1
mineral processing
mineral processing is the process to enrich one or more valuable minerals using the differences among the physical properties，chemical properties or physio-chemical properties of various minerals
2.0.2
ore
the ore is the rock that contains valuable minerals and has value for mining.
2.0.3
mineral
the mineral is the natural elementary substance or compound that has specific chemical composition，physical and chemical properties.It is the elementary unit of rock and ore.
2.0.4
raw ore
the raw ore is the one that is mined from mines without being processed by using mineral processing and other technology.
2.0.5
concentrate
the concentrate is the product that is obtained from raw ore after mineral processing operation with high content of useful component.
2.0.6
tailing
the tailings are the products obtained after mineral processing operation with low content of useful component.
2.0.7
middling
the middling is the intermediate product that is obtained after roughing with the content of useful component between concentrate and tailings，and required for further treatment.
2.0.8
grade
the grade is the mass fraction of certain component（such as element，compound and mineral，etc）in ore or beneficiated product，and commonly expressed using percentage or grams per ton.
2.0.9
yield
the yield is the percentage of the beneficiated product mass out of feeding ore mass.
2.0.10
recovery rate
the recovery rate is the percentage of certain useful component mass in the product out of the mass of this component contained in the feeding ore.
2.0.11
pre-beneficiation
the pre-beneficiation is the process of separating waste rock from ores before the grinding operation.
2.0.12
separation
the separation is the process of separating minerals from ores，also known as sorting.
2.0.13
roughing
the roughing is the operation or process to preliminarily separate the raw ores.
2.0.14
cleaning
the cleaning is the operation to carry out enrichment or impurity removal for roughing concentrate，or separating various useful components from mixed concentrate.
2.0.15
scavenging
the scavenging is the operation to further recycle the useful components from the roughing tailings.
2.0.16
operation rate of equipment
the operation rate of equipment is the percentage of the actual equipment operation hours out of total calendar hours.
3 Basic Requirement
3.0.1 Metallurgy concentrator shall be designed with sufficient design basis and complete design basis data.
3.0.2 The design process flow shall be based on the reviewed or proved test report and with reference to the operation practice of concentration plant with similar ore features.
3.0.3 Selection of equipment shall be in compliance with the following requirements:
1 Main equipments should be selected from the equipments that are technology advanced，reliable in production，energy saving and environmental protection；
2 Specifications and performance of auxiliary equipments shall match with those of main equipments；
3 Domestic and foreign obsolete equipments shall not be used.
3.0.4 The waste rock，the tailings，waste water，dust and harmful gas and generated noises etc.as discharged from Concentrator，shall be properly handled，with conformity to the current national regulations on environmental protection and occupational health and safety standards.
3.0.5 Concentrator should make full use of recycled water with the utilization rate of recycled water no less than 92%.
4 Mineral Processing Experiments
4.1 Representativeness of Samples
4.1.1 The mineral composition，ore texture and structure，element or compound content，composition distribution status，disseminated grain size characteristics，silt inclusion，moisture inclusion，and other physical and chemical properties of the ore samples shall be in conformity with the ore characteristics from the mining area or the mined ores as represented by the ore with the same grade and natural type.
4.1.2 The proportion of various grades and various types of the ore samples shall match the proportion of geological ore quantity and extracted ore quantity from the representative mining zones.
4.1.3 The ore sample shall be in conformity with the ore features from the representative mining zones in term of various grade class，average grade and grade frequency and distribution characteristics of useful and detrimental element.
4.1.4 According to the waste rock dilution rate during the mining process，the ore sample shall be mixed with the roof and floor rock and intercalary strata rock with corresponding quantity，the mineral composition and chemical constituent of which shall be similar with the actual ore from the mining process.
4.1.5 The ore sample shall be taken respectively，when the properties of the ores in oxidized ore zone，blending ore zone and primary ore zone are quite different，or when the properties of the ores are quite different between the earlier mining stage and later stage.When the samples cannot be mined respectively，the sample shall be mixed according to the actual mining proportions.
