CN114870741A - Ore blending device and ore blending method for concentrate with large grade difference - Google Patents
Ore blending device and ore blending method for concentrate with large grade difference Download PDFInfo
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- CN114870741A CN114870741A CN202210607183.8A CN202210607183A CN114870741A CN 114870741 A CN114870741 A CN 114870741A CN 202210607183 A CN202210607183 A CN 202210607183A CN 114870741 A CN114870741 A CN 114870741A
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- 239000012141 concentrate Substances 0.000 title claims abstract description 143
- 238000002156 mixing Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000010931 gold Substances 0.000 claims abstract description 136
- 229910052737 gold Inorganic materials 0.000 claims abstract description 119
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 118
- 239000010949 copper Substances 0.000 claims abstract description 83
- 229910052802 copper Inorganic materials 0.000 claims abstract description 81
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 80
- 238000012360 testing method Methods 0.000 claims abstract description 51
- 230000008901 benefit Effects 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 14
- 238000004364 calculation method Methods 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims abstract description 8
- 239000003595 mist Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000005070 sampling Methods 0.000 claims description 18
- 229910052709 silver Inorganic materials 0.000 claims description 18
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 17
- 239000004332 silver Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000007689 inspection Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 230000008719 thickening Effects 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000005272 metallurgy Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 7
- 239000011707 mineral Substances 0.000 description 7
- 239000005864 Sulphur Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000010944 silver (metal) Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to the technical field of industrial tests and discloses a ore blending device and an ore blending method for concentrate with large grade difference, wherein the ore blending device comprises an ore blending adjusting box, a DN600 sampler is arranged on the right side of the back of the ore blending adjusting box, a DN250 sampler is arranged on the right side of the ore blending adjusting box, a column 2 is arranged in front of the DN250 sampler, a column 1 is arranged in front of the column 2, and an acid mist platform is arranged behind the DN 250. According to the ore blending device and the ore blending method for the concentrate with large grade difference, because the gold content is extremely low, the raw material grade and the moisture, the ore blending uniformity of production and delivery cause influence on the accuracy of final gold test, test errors are inevitable, the influence on economic benefits is large, the Au content of the final copper concentrate is calculated to be 1.6g/t according to class samples, the delivery copper concentrate contains 742.79 g of gold, the loss rate of the gold in the test process is 12.62%, the unit economic benefit is 0.27 yuan/ton, the new benefit is estimated to be 96.24 ten thousand yuan/year, and the calculation does not contain equipment cost.
Description
Technical Field
The invention relates to the technical field of industrial tests, in particular to a blending device and a blending method for concentrates with larger grade difference.
Background
Ore refers to a collection of minerals from which useful components can be extracted or which themselves have some property that can be exploited. Can be divided into metal mineral and nonmetal mineral. The unit content of useful components (elements or minerals) in the ore is called ore grade, precious metal ores such as gold and platinum are expressed by gram/ton, other ores are expressed by percentage, the value of the ore is measured by the grade of the common ore, but the value of the ore is also influenced by the content of gangue (useless minerals or minerals with little useful components in the ore and unavailable) and harmful impurities in the effective component ore
The ore blending of the mineral products is usually repeated by the loader or the excavator, so that the ore blending is not uniform, and if the method is adopted, the sampling and testing are unqualified.
Disclosure of Invention
The invention aims to provide a ore blending device and an ore blending method for concentrate with larger grade difference, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a ore blending method for concentrate with larger grade difference comprises the following steps:
the method comprises the following steps:
s1, purchasing the gold concentrate ore, wherein the gold concentrate ore is totally 20 bundles of 1000 bags, each bundle of the gold concentrate ore is subjected to jack sampling, and elements and content are analyzed;
s2, performing single bundle measurement on the gold concentrate purchased in the step S1 to obtain the gold and silver content;
s3, detecting the Au content in the 20 bundles of gold concentrate purchased in the detection step S1, and uniformly mixing the gold concentrate with larger deviation in a ratio of 1:1 and adding the mixture into a stirring barrel;
s4, detecting the gold and silver content of the copper concentrate produced in different shifts to obtain that the gold content of the copper concentrate produced in a recent selection plant is 0.43g/t, and the silver content of the copper concentrate is 89 g/t;
s5, sampling and testing the gold concentrate, the overflow of the copper concentrate thickening tank, the filtrate water of the ceramic filter and the final copper concentrate in the test period respectively;
s6, setting 4 sampling points in total, setting 4 comprehensive test samples in each shift, wherein the sampling time interval is once per hour, the sampling times are 12 times in total, filtering, drying and dividing the samples obtained in the previous shift by a shift receiving person, and finally sending the samples to a quality inspection part for testing, wherein 3 ore preparing persons and 2 sample preparing persons in each shift are 5 persons, the four shifts and two shifts are adopted, and technicians follow the shift in the whole process;
s7, in order to overcome the interference of gold-containing grade fluctuation and other factors in raw ore and concentrate and ensure the success of an industrial test, the gold in the copper concentrate produced by a concentration plant after ore blending reaches 1.0g/t, the industrial test determines that the gold is calculated according to the 1.5g/t gold contained in the final copper concentrate, and the blending amount of the gold concentrate is finally determined;
s8 and a calculation result in the step S7 show that 4.0 tons of gold concentrate needs to be mixed each time to meet the mixing target, a low-level mixing tank and a high-level slurry separation tank form a circulating mixing system, the stability of the copper concentrate mixed with the gold concentrate is finally ensured by controlling the flow and stabilizing the liquid level of the mixing tank, the specific mixing operation scheme is as follows, the wet weight of the gold concentrate is 19.5 kilograms per bag, the dry weight is 15.6 kilograms per bag calculated by 20% of water, the weight is converted into 20-21 bags per hour, the mixing tank is filled with water firstly, 40 bags of gold concentrate are added for the first time and are fully mixed, water is added at the flow rate of 500 milliliters per minute, the gold concentrate is added at the mixing plan of 10-11 bags per half hour, and the reduced mass concentration of the prepared gold concentrate pulp is 15.6%.
Preferably, the step S1 is repeated to find that all the copper, gold and silver grades are slightly lower than the manufacturer' S inspection results, but are within a reasonable range in total.
Preferably, the test time of the copper concentrate metallurgy industry in the step S4 is determined to be four shifts in two days, and the four shifts are all continuously operated for 24 hours.
Preferably, the test result in the step S8 shows that only the first half shift contains gold, the first half shift from 4 months and 22 days to 24 days obtains qualified copper concentrate containing more than 1g/t of Au in 4.5 shifts, the Au content of the final copper concentrate is calculated to be 1.6g/t according to the shift samples, the actual factory comprehensive sample is only 1.35g/t, and the grade and the moisture of the raw material, the uniformity of the ore blending process and the uniformity of the product ore blending all affect the test of the final gold.
Preferably, 15.66 tons of gold concentrate are blended into the produced copper concentrate in 4 shifts in the step S8, the metal content is 657.72 g, 462.93 tons of copper concentrate with qualified Au-containing grade are obtained in 4.5 shifts due to the buffering delay effect of the concentration tank, the gold grade of the final copper concentrate calculated according to the sample combination is 1.60g/t, the gold-containing metal content is 742.79 g, the gold loss is 107.26 g, and the loss rate is 12.62%, which are respectively 1.08g/t, 1.51g/t, 1.71g/t, 2.06g/t, and 1.89 g/t.
Preferably, the gold-containing grade of the copper concentrate is calculated according to 1.60g/t obtained by combining and calculating, the cost, the newly increased output value and the economic benefit of the gold-blending industrial test are calculated, the gold-containing grade of the copper concentrate is calculated according to 1.60g/t obtained by calculation, after the cost of silver and copper in raw materials is deducted, the operation cost of the industrial test is 21.00 ten thousand yuan, the newly increased concentrate output value is 21.57 ten thousand yuan, the economic benefit is 5712.17 yuan, the conversion is carried out according to the cost, the unit economic benefit is 0.27 yuan/ton, the treatment capacity of 360 ten thousand tons in the whole year of a selected plant is calculated, and the newly increased economic benefit accumulated in the whole year is 96.24 ten thousand yuan.
The utility model provides a join in marriage ore device for great concentrate of grade difference, includes the ore blending regulating box, ore blending regulating box back right side is provided with DN600 sampler, ore blending regulating box right side is provided with DN250 sampler, DN250 sampler front the place ahead is provided with post 2, 2 front the place ahead of post is provided with post 1, DN250 rear is provided with the acid mist platform, acid mist platform right side is provided with stirred tank 1 and stirred tank 2, stirred tank 1 and stirred tank 2 front the place ahead are provided with the sulphur concentrator, sulphur concentrator left side is provided with DN400 sampler, 1 right side of post is provided with the copper roughing machine, copper roughing machine back is provided with the pump.
Compared with the prior art, the invention provides a ore blending device and an ore blending method for concentrate with larger grade difference, and the ore blending device and the ore blending method have the following beneficial effects:
1. according to the ore blending device and the ore blending method for the concentrate with larger grade difference, quality inspection reports show that the gold concentrate for industrial test ore blending has a Cu grade of 1.69%, an Au grade of 42g/t and an Ag grade of 15.70g/t, the copper, gold and silver grades are slightly lower than the inspection results of manufacturers through repeated inspection, but the total grade is within a reasonable range, the industrial test calculates and organizes ore blending according to the content of Au1.5-1.6g/t in the copper concentrate, and finally the copper concentrate containing Au1.35g/t is obtained.
2. According to the ore blending device and the ore blending method for the concentrate with large grade difference, because the gold content is extremely low, the raw material grade and the moisture, the ore blending uniformity of production and delivery cause influence on the accuracy of final gold test, test errors are inevitable, the influence on economic benefits is large, the Au content of the final copper concentrate is calculated to be 1.6g/t according to class samples, the delivery copper concentrate contains 742.79 g of gold, the loss rate of the gold in the test process is 12.62%, the unit economic benefit is 0.27 yuan/ton, the new benefit is estimated to be 96.24 ten thousand yuan/year, and the calculation does not contain equipment cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor:
FIG. 1 is a table of the main valuable elements and contents of gold concentrate according to the invention;
FIG. 2 is a table showing the gold and silver contents of a single-bundle gold concentrate of the present invention;
FIG. 3 is a table showing the gold and silver contents (g/t) of copper concentrate from a separation plant according to the present invention;
FIG. 4 is a schematic diagram of a copper concentrate metallurgy industrial test flow chart and a sampling point of the invention;
FIG. 5 is a table of sampling points and personnel schedules according to the present invention;
FIG. 6 is a table showing the gold-containing conditions (per shift) before and after the copper concentrate is subjected to gold blending in the theoretical calculation plant of the invention;
FIG. 7 is a table of the grade and loss of the alloy industry (calculated by the gold content of copper concentrate 1.60 g/t);
FIG. 8 is a table of cost and benefit analysis of copper concentrate blending (calculated as the gold content of copper concentrate is 1.60 g/t);
FIG. 9 is a schematic top plan view of the plant of the present invention;
FIG. 10 is a schematic cross-sectional view of the plant of the present invention.
In the figure: 1. a ore blending adjusting box; 2. DN600 sampler; 3. DN250 sampler; 4. a column 2; 5. a column 1; 6. an acid mist platform; 7. a stirring tank 1; 8. a stirring tank 2; 9. a sulfur concentrator; 10. DN400 sampler; 11. a copper roughing machine; 12. and (4) a pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-10, the present invention provides a technical solution: a ore blending method for concentrate with larger grade difference comprises the following steps:
and S1, purchasing the gold concentrate ore, wherein the gold concentrate ore is 20 bundles of about 1000 bags in total, performing jack sampling on each bundle of the gold concentrate batch, and analyzing elements and content.
And S2, performing single bundle measurement on the gold concentrate purchased in the step S1 to obtain the content of gold and silver.
S3, detecting that the Au content in the 20 bundles of gold concentrates purchased in the step S1 is 37-43g/t except the 11 th and 12 th bundles of gold concentrates with abnormal grade, and uniformly mixing the 11 th and 12 th bundles of gold concentrates in a ratio of 1:1 and then adding the mixture into a stirring barrel.
S4, detecting the gold and silver content of the copper concentrate produced in different shifts to obtain that the gold content of the copper concentrate produced in a recent selection plant is about 0.43g/t, and the silver content of the copper concentrate is about 89 g/t.
And S5, sampling and testing the gold concentrate, the overflow of the copper concentrate thickening tank, the filtrate water of the ceramic filter and the final copper concentrate during the test respectively.
S6, setting 4 sampling points in total, setting 4 comprehensive test samples in each shift, wherein the sampling time interval is once per hour, the sampling times are 12 times in total, filtering, drying and dividing the samples obtained in the previous shift by a shift receiving person, finally sending the samples to a quality inspection part for testing, wherein 3 ore preparing persons and 2 sample preparing persons in each shift are 5 persons, and the shift of four shifts and two shifts are adopted, and technicians follow up the shift in the whole process.
S7, in order to overcome the interference of gold-containing grade fluctuation and other factors in raw ore and concentrate and ensure the success of industrial test, the gold in the copper concentrate produced by a beneficiation plant reaches more than 1.0g/t, the industrial test determines that the gold is calculated according to the 1.5g/t gold contained in the final copper concentrate, and the loading amount of the gold concentrate is finally determined.
S8、
The calculation result in the step S7 shows that 4.0 tons of gold concentrate needs to be added each time to meet the ore blending target, a low-level mixing tank and a high-level slurry separation tank form a circulating ore blending system, the stability of the gold concentrate blended into the copper concentrate is finally ensured by controlling the flow and stabilizing the liquid level of the mixing tank, the specific ore blending operation scheme is as follows, the wet weight of the gold concentrate is 19.5 kg/bag, the dry weight is 15.6 kg/bag calculated by 20% of water, the dry weight is converted into 20-21 bags per hour, the mixing tank is filled with water first, 40 bags of gold concentrate are added for the first time and fully stirred, water is added at the flow rate of 500 ml/min, the gold concentrate is added at the ore blending plan of 10-11 bags per half hour, and the reduced mass concentration of the prepared gold concentrate is 15.6%.
In step S1, the quality of all copper, gold and silver is found to be slightly lower than the factory test results, but the total quality is within a reasonable range.
In the step S4, the industrial test time for preparing the copper concentrate alloy is determined to be four shifts of two days from 4 months and 22 days to 23 days, and the four shifts are all continuous operation for 24 hours.
The test result in the step S8 shows that only the first half of the shift contains gold qualified, the first half of the shift from 4 months, 22 days to 24 days is obtained, and the period is 4.5 shifts, the qualified copper concentrate containing more than 1g/t Au is obtained, the Au content of the final copper concentrate is calculated to be 1.6g/t according to the shift sample, the actual factory comprehensive sample is only 1.35g/t, and the grade and the moisture of the raw material, the uniformity of the ore blending process and the uniformity of the product ore blending all influence the test of the final gold.
In the step S8, 4 shifts of ore blending are carried out from the day 22 in the month 4 to the day 23 in the night, 15.66 tons (calculated according to the material object dry weight) of gold concentrate are blended into the produced copper concentrate, the metal content is 657.72 g, 4.5 shifts are totally calculated from the day 14:00 in the day 22 in the month 4 to the day 24 in the day 22 to the day 4.5 due to the buffering delay function of a thickening pool, 462.93 tons of copper concentrate with qualified Au grade are obtained, and are respectively 1.08g/t, 1.51g/t, 1.71g/t, 2.06g/t and 1.89g/t in sequence, the final copper gold concentrate grade calculated according to the combination of the shift samples is 1.60g/t, the gold-containing metal content is 742.79 g, the gold loss amount is 107.26 g, and the loss rate is 12.62%.
The gold-containing grade of the copper concentrate is calculated according to 1.60g/t obtained by combining and calculating, the cost, the newly increased output value and the economic benefit of the gold-blending industrial test are calculated, the gold-containing grade of the copper concentrate is calculated according to 1.60g/t obtained by combining and calculating, after the cost of silver and copper in raw materials is deducted, the operation cost of the industrial test is 21.00 ten thousand yuan in total, the newly increased concentrate output value is 21.57 ten thousand yuan in total, the economic benefit is 5712.17 yuan, the conversion is carried out according to the cost, the unit economic benefit is 0.27 yuan/ton, the calculation is carried out according to the treatment capacity of 360 ten thousand tons in the whole plant selection, and the newly increased economic benefit accumulated in the whole year is 96.24 ten thousand yuan.
The utility model provides a join in marriage ore device for great concentrate of grade difference, including joining in marriage the ore regulation case, join in marriage ore regulation case back right side and be provided with DN600 sampler, join in marriage ore regulation case right side and be provided with DN250 sampler, DN250 sampler front the place ahead is provided with post 2, 2 front the place ahead of post is provided with post 1, DN250 rear is provided with the acid mist platform, acid mist platform right side is provided with stirred tank 1 and stirred tank 2, stirred tank 1 and 2 front the place ahead of stirred tank are provided with the sulphur concentrator, sulphur concentrator left side is provided with DN400 sampler, 1 right side of post is provided with the copper roughing machine, the copper roughing machine back is provided with the pump.
The quality inspection report shows that the grade of Cu of the gold concentrate used for industrial test ore matching is 1.69 percent, the grade of Au is 42g/t and the grade of Ag is 15.70g/t, the reexamination finds that the grade of Cu, Au and Ag is slightly lower than the inspection result of a manufacturer, but the total is in a reasonable range, the industrial test calculates organization ore matching according to the content of Au1.5-1.6g/t in the copper concentrate, and finally obtains the copper concentrate containing Au1.35g/t, because the gold content is extremely low, the raw material grade and the moisture, the ore matching uniformity of production and factory cause the accuracy of final gold test, the test error is inevitable, the economic benefit is greatly influenced, the Au content of the final copper concentrate is 1.6g/t according to the class sample, the factory copper concentrate contains 742.79 g of gold, the loss rate of gold in the test process is 12.62 percent, the unit economic benefit is 0.27 yuan/ton, and the new benefit is estimated to be 96.24 yuan/year, none of the above calculations contain equipment costs.
In the actual operation process, when the device is used, the industrial test result shows that the copper concentrate gold proportioning is technically feasible, the gold content in the copper concentrate can reach the price grade of more than 1g/t, but the gold content in the copper concentrate obtained in the current main production process is too low (only 0.43 g/t), so the expected effect is not achieved in the economic aspect, and the gold proportioning scheme can be more feasible in the future if the main process copper concentrate can contain more than 0.7g/t through technical attack.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A ore blending method for concentrate with larger grade difference is characterized by comprising the following steps:
s1, purchasing the gold concentrate ore, wherein the gold concentrate ore is totally 20 bundles of 1000 bags, each bundle of the gold concentrate ore is subjected to jack sampling, and elements and content are analyzed;
s2, performing single bundle measurement on the gold concentrate purchased in the step S1 to obtain the gold and silver content;
s3, detecting the Au content in the 20 bundles of gold concentrate purchased in the detection step S1, and uniformly mixing the gold concentrate with larger deviation in a ratio of 1:1 and adding the mixture into a stirring barrel;
s4, detecting the gold and silver content of the copper concentrate produced in different shifts to obtain that the gold content of the copper concentrate produced in a recent selection plant is 0.43g/t, and the silver content of the copper concentrate is 89 g/t;
s5, sampling and testing the gold concentrate, the overflow of the copper concentrate thickening tank, the filtrate water of the ceramic filter and the final copper concentrate in the test period respectively;
s6, setting 4 sampling points in total, setting 4 comprehensive test samples in each shift, wherein the sampling time interval is once per hour, the sampling times are 12 times in total, filtering, drying and dividing the samples obtained in the previous shift by a shift receiving person, and finally sending the samples to a quality inspection part for testing, wherein 3 ore preparing persons and 2 sample preparing persons in each shift are 5 persons, the four shifts and two shifts are adopted, and technicians follow the shift in the whole process;
s7, in order to overcome interference of gold-containing grade fluctuation and other factors in raw ore and concentrate and ensure the success of an industrial test, the gold in the copper concentrate produced by a beneficiation plant reaches 1.0g/t, the industrial test determines that the gold is calculated according to 1.5g/t of the gold contained in the final copper concentrate, and the addition amount of the gold concentrate is finally determined;
s8 and a calculation result in the step S7 show that 4.0 tons of gold concentrate needs to be mixed each time to meet the mixing target, a low-level mixing tank and a high-level slurry separation tank form a circulating mixing system, the stability of the copper concentrate mixed with the gold concentrate is finally ensured by controlling the flow and stabilizing the liquid level of the mixing tank, the specific mixing operation scheme is as follows, the wet weight of the gold concentrate is 19.5 kilograms per bag, the dry weight is 15.6 kilograms per bag calculated by 20% of water, the weight is converted into 20-21 bags per hour, the mixing tank is filled with water firstly, 40 bags of gold concentrate are added for the first time and are fully mixed, water is added at the flow rate of 500 milliliters per minute, the gold concentrate is added at the mixing plan of 10-11 bags per half hour, and the reduced mass concentration of the prepared gold concentrate pulp is 15.6%.
2. The ore blending method for concentrate with larger grade difference according to claim 1, characterized in that: in the step S1, the quality of all copper, gold and silver is found to be slightly lower than the manufacturer' S inspection result, but the total quality is within a reasonable range.
3. The ore blending method for concentrate with larger grade difference according to claim 1, characterized in that: and determining the time of the copper concentrate metallurgy industrial test in the step S4 to be four shifts in two days, wherein the four shifts are all continuously operated for 24 hours.
4. The ore blending method for concentrate with larger grade difference according to claim 1, characterized in that: the test result in the step S8 shows that only the first half of the shifts contain qualified gold, 4.5 shifts obtain qualified copper concentrate containing more than 1g/t of Au, the Au content of the final copper concentrate is calculated to be 1.6g/t according to the shift samples, the actual factory comprehensive sample is only 1.35g/t, and the grade and the moisture of the raw material, the uniformity of the ore blending process and the uniformity of the product ore blending all influence the test of the final gold.
5. The ore blending method for concentrate with larger grade difference according to claim 1, characterized in that: in the step S8, 15.66 tons of gold concentrate are prepared into the produced copper concentrate in total, the metal content is 657.72 grams, the total of 4.5 shifts obtains 462.93 tons of copper concentrate with qualified Au grade due to the buffering and delaying effect of the thickening tank, the gold grade of the copper concentrate is 1.08g/t, 1.51g/t, 1.71g/t, 2.06g/t and 1.89g/t, the gold grade of the final copper concentrate calculated according to the merging of the shift samples is 1.60g/t, the gold-containing metal content is 742.79 grams, the gold loss is 107.26 grams, and the loss rate is 12.62 percent.
6. The ore blending method for concentrate with larger grade difference according to claim 5, characterized in that: and calculating the gold-containing grade of the copper concentrate according to the merged and calculated 1.60g/t, and calculating the test cost, the newly increased output value and the economic benefit of the gold-blending industry.
7. The utility model provides a join in marriage ore device for great concentrate of grade difference, includes join in marriage ore regulating box (1), its characterized in that: the special ore blending device is characterized in that a DN600 sampler (2) is arranged on the right side of the back of the ore blending adjusting box (1), a DN250 sampler (3) is arranged on the right side of the ore blending adjusting box (1), a column 2 (4) is arranged in front of the DN250 sampler (3), a column 1 (5) is arranged in front of the column 2 (4), an acid mist platform (6) is arranged behind the DN250 sampler (3), a stirring tank 1 (7) and a stirring tank 2 (8) are arranged on the right side of the acid mist platform (6), a sulfur concentrator (9) is arranged in front of the stirring tank 1 (1) and the stirring tank 2 (8), a DN400 sampler (10) is arranged on the left side of the sulfur concentrator (9), a copper roughing machine (11) is arranged on the right side of the column 1 (5), and a pump (12) is arranged on the back of the copper roughing machine (11).
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| WO2012034180A1 (en) * | 2010-09-17 | 2012-03-22 | Technological Resources Pty. Limited | Blending mined material |
| CN213644034U (en) * | 2020-11-05 | 2021-07-09 | 中国矿业大学(北京) | XRF-based dynamic ore blending system |
| CN216396167U (en) * | 2020-06-30 | 2022-04-29 | 山东华联矿业股份有限公司 | Ore blending mixer |
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2022
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|---|---|---|---|---|
| WO2012034180A1 (en) * | 2010-09-17 | 2012-03-22 | Technological Resources Pty. Limited | Blending mined material |
| CN216396167U (en) * | 2020-06-30 | 2022-04-29 | 山东华联矿业股份有限公司 | Ore blending mixer |
| CN213644034U (en) * | 2020-11-05 | 2021-07-09 | 中国矿业大学(北京) | XRF-based dynamic ore blending system |
| CN114516553A (en) * | 2022-03-31 | 2022-05-20 | 宝钢资源控股(上海)有限公司 | Uniform mixing production system and method for multi-variety iron ores at port |
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