CN215429503U - Ore grinding, grading and sorting system for copper iron sulfur ore - Google Patents
Ore grinding, grading and sorting system for copper iron sulfur ore Download PDFInfo
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- CN215429503U CN215429503U CN202022855088.9U CN202022855088U CN215429503U CN 215429503 U CN215429503 U CN 215429503U CN 202022855088 U CN202022855088 U CN 202022855088U CN 215429503 U CN215429503 U CN 215429503U
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Abstract
The utility model discloses a copper-iron-sulfur ore grinding and grading sorting system, which comprises a crushing device, an ore grinding device, a screening device, a first hydrocyclone, a filtering device and a high-frequency fine screen, wherein a feeding hole of the screening device is communicated with a discharging hole of the crushing device, a feed back hole of the screening device is communicated with a feeding hole of the crushing device, a feeding hole of the ore grinding device is communicated with a discharging hole of the screening device, a feeding hole of the first hydrocyclone is communicated with a discharging hole of the ore grinding device, a sand settling hole of the first hydrocyclone is communicated with a feeding hole of the ore grinding device, a feeding hole of the filtering device is communicated with an overflow hole of the first hydrocyclone, a feeding hole of the high-frequency fine screen is communicated with a discharging hole of the filtering device, and a feed back hole of the high-frequency fine screen is communicated with a feeding hole of the ore grinding device Improving the production efficiency and the like.
Description
Technical Field
The utility model relates to the technical field of mineral processing, in particular to a grinding, grading and sorting system for copper iron sulfur ores.
Background
At present, the hydrocyclone is adopted as the equipment for grading operation in the ore grinding loop of the mineral dressing plant at home and abroad.
The hydrocyclone is a device for grading particles by utilizing centrifugal force, and is a device for grading materials according to equal reduction ratio under the combined action of the centrifugal force, centripetal buoyancy and fluid drag force according to the difference of the density and the particle size of the materials.
Therefore, when the hydrocyclone is used for classification, materials with unqualified particle sizes are possibly doped in overflow, settled sand also possibly contains qualified particle sizes, and the relative amount is uncertain, so that the hydrocyclone classification mode can be defined as fuzzy classification.
The hydrocyclone is adopted as the classification equipment, and the classification effect is influenced by more factors, such as: the particle size composition and concentration of feed pulp, the pressure and lift of feed pumping, the diameter and inclination angle of the hydrocyclone, the diameter of the sand-settling nozzle and the like, and the operation of controlling the hydrocyclone alone as a grading device is complicated.
SUMMERY OF THE UTILITY MODEL
The present invention is based on the discovery and recognition by the utility model of the following facts and problems: the control difficulty of the classification effect of the hydrocyclone is high, the particle size composition of the classification overflow is difficult to be constantly controlled, and unqualified classification products with the particle size exceeding the specified range are often generated in classification products, so that the subsequent production index fluctuation is high.
To this end, the embodiment of the utility model provides an ore grinding and classifying and sorting system for copper iron sulfur ore, which enables overflow ore pulp of a hydrocyclone not to exceed a specified range.
According to the embodiment of the utility model, the ore grinding, grading and sorting system for the copper iron sulfur ore comprises:
a crushing device;
the screening device is used for screening the copper-iron-sulfur ores crushed by the crushing device, a feed inlet of the screening device is communicated with a discharge outlet of the crushing device, and a feed back port of the screening device is communicated with a feed inlet of the crushing device;
the ore grinding device is used for grinding the copper iron sulfur ore screened by the screening device, and a feed inlet of the ore grinding device is communicated with a discharge outlet of the screening device;
the first hydrocyclone is used for grading the ore pulp ground by the ore grinding device, the feed inlet of the first hydrocyclone is communicated with the discharge outlet of the ore grinding device, the first hydrocyclone further comprises an overflow port for discharging the overflow ore pulp and a sand setting port for discharging the sand setting ore pulp, and the sand setting port of the first hydrocyclone is communicated with the feed inlet of the ore grinding device;
the filtering device is used for filtering impurities in the overflow ore pulp, and a feed inlet of the filtering device is communicated with an overflow port of the first hydrocyclone;
the high-frequency fine screen is used for screening overflow ore pulp after the filtering device filters, the feed inlet of the high-frequency fine screen is communicated with the discharge port of the filtering device, and the feed back port of the high-frequency fine screen is communicated with the feed inlet of the ore grinding device.
The ore grinding and grading system for the copper-sulfur-iron ore has the advantages of being simple in structure, facilitating adjustment of the quality of overflow ore pulp of the first hydrocyclone and improving production efficiency.
In some embodiments, the ore grinding, classifying and sorting system for the copper iron sulfur ore further comprises an agitating tank for agitating the undersize pulp of the high-frequency fine sieve, and a feed inlet of the agitating tank is communicated with a discharge outlet of the high-frequency fine sieve.
In some embodiments, the system for grinding, classifying and sorting copper iron sulfur ore further comprises:
the feeding hole of the copper roughing device is communicated with the discharging hole of the stirring tank, and the copper roughing device is used for performing flotation on ore pulp in the stirring tank to obtain copper roughing concentrate ore pulp and copper roughing tailing ore pulp;
the feed inlet of the first copper concentration device is communicated with the concentrate discharge outlet of the copper roughing device, the tailing discharge outlet of the first copper concentration device is communicated with the feed inlet of the copper roughing device, and the first copper concentration device is used for performing flotation on the copper roughing concentrate pulp to obtain first copper concentration concentrate pulp;
the feed inlet of the second copper concentration device is communicated with the discharge outlet of the first copper concentration device, the tailing discharge outlet of the second copper concentration device is communicated with the feed inlet of the first copper concentration device, and the second copper concentration device is used for performing flotation on the first copper concentration ore pulp to obtain second copper concentration ore pulp;
the feed inlet of the third copper concentration device is communicated with the discharge outlet of the second copper concentration device, the tailing discharge outlet of the third copper concentration device is communicated with the feed inlet of the second copper concentration device, and the third copper concentration device is used for performing flotation on the second copper concentration ore pulp to obtain third copper concentration ore pulp;
a first pulp thickener having a feed inlet in communication with the discharge outlet of the third copper concentration device for thickening and filtering the third copper concentration concentrate pulp to obtain copper concentrate.
In some embodiments, the system for grinding, classifying and sorting copper iron sulfur ore further comprises:
the first copper scavenging device is used for carrying out flotation on the copper roughing tailing pulp to obtain first copper scavenging tailing pulp;
the second copper scavenging device, the feed inlet of second copper scavenging device with the discharge gate intercommunication of first copper scavenging device, the tailing bin outlet of second copper scavenging device with the feed inlet intercommunication of first copper scavenging device, the second copper scavenging device is used for right first copper scavenging tailing ore pulp carries out the flotation in order to obtain second copper scavenging tailing ore pulp.
In some embodiments, the system for grinding, classifying and sorting copper iron sulfur ore further comprises:
a feed inlet of the sulfur roughing device is communicated with a discharge outlet of the second copper scavenging device, and the sulfur roughing device is used for performing flotation on the second copper scavenging tailing pulp to obtain sulfur roughing concentrate pulp and sulfur roughing tailing pulp;
the first sulfur concentration device is used for carrying out flotation on the sulfur roughing concentrate pulp to obtain a first sulfur concentration concentrate pulp;
the feed inlet of the second sulfur concentration device is communicated with the discharge outlet of the first sulfur concentration device, the tailing discharge outlet of the second sulfur concentration device is communicated with the feed inlet of the first sulfur concentration device, and the second sulfur concentration device is used for performing flotation on the first sulfur concentration ore pulp to obtain second sulfur concentration ore pulp;
the second hydrocyclone is used for grading the second sulfur concentration concentrate pulp, the feed inlet of the second hydrocyclone is communicated with the discharge outlet of the second sulfur concentration device, and the second hydrocyclone comprises an overflow port for discharging fine mud and a sand setting port for discharging sulfur concentrate pulp;
a second pulp thickener having a feed inlet in communication with the grit chamber of the second hydrocyclone, the second pulp thickener being for thickening and filtering the sulfur concentrate pulp to obtain sulfur concentrate.
In some embodiments, the system for grinding, classifying and sorting copper iron sulfur ore further comprises:
the first sulfur scavenging device is used for carrying out flotation on the sulfur rougher tailing pulp to obtain first sulfur scavenged tailing pulp;
the second sulfur scavenging device, the feed inlet of second sulfur scavenging device with the discharge gate intercommunication of first sulfur scavenging device, the tailing bin outlet of second sulfur concentration device with the feed inlet intercommunication of first sulfur scavenging device, the second sulfur scavenging device is used for right first sulfur scavenging tailing ore pulp carries out the flotation in order to obtain second sulfur scavenging tailing ore pulp.
In some embodiments, the system for grinding, classifying and sorting copper iron sulfur ore further comprises:
the feeding hole of the iron roughing device is communicated with the discharging hole of the second sulfur scavenging device, and the iron roughing device is used for carrying out magnetic separation on the second sulfur scavenging tailing pulp to obtain iron roughing concentrate pulp and iron roughing tailing pulp;
the iron concentration device is used for carrying out magnetic separation on the iron roughing concentrate pulp to obtain iron concentrate pulp and iron tailing pulp;
the ore pulp desulfurization device is used for desulfurizing the iron concentrate ore pulp to obtain iron concentrate ore pulp and iron concentrate desulfurized ore pulp;
and the feed inlet of the third ore pulp thickener is communicated with the concentrate discharge outlet of the ore pulp desulfurization device, and the third ore pulp thickener is used for concentrating and filtering the iron ore concentrate ore pulp to obtain iron ore concentrate.
In some embodiments, the system for grinding, classifying and sorting copper iron sulfur ore further comprises:
the third hydraulic cyclone is used for grading the mixed slurry of the iron roughing tailing slurry, the iron beneficiated desulfurized ore slurry and the fine mud, a feed inlet of the third hydraulic cyclone is respectively communicated with an overflow port of the second hydraulic cyclone, a tailing discharge port of the iron roughing device, a tailing discharge port of the iron beneficiated device and a tailing discharge port of the ore slurry desulfurization device, and the third hydraulic cyclone comprises an overflow port for discharging fine-grained ore slurry and a sand setting port for discharging filled ore slurry;
and a feed inlet of the fourth pulp thickener is communicated with an overflow port of the third hydrocyclone, and the fourth pulp thickener is used for concentrating and filter-pressing the fine fraction pulp to obtain dry-piled tailings.
In some embodiments, the filtration device is a plurality.
In some embodiments, the crushing device is a jaw crusher, the grinding device is a lattice ball mill, and the filtering device is a linear vibrating screen; the aperture of the screen of the screening device is 15mm, the aperture of the screen of the linear vibrating screen is 2mm multiplied by 15mm, the vibration frequency of the high-frequency fine screen is 1500Hz, the vibration amplitude is 1mm-2mm, and the aperture of the screen of the high-frequency fine screen is 0.1-0.15 mm.
Drawings
Fig. 1 is a schematic view of a mill classification system of a cuprum-pyrite ore according to an embodiment of the present invention.
Reference numerals:
the device comprises a crushing device 1, a screening device 2, an ore grinding device 3, a first hydrocyclone 4, a filtering device 5, a high-frequency fine screen 6, a stirring tank 7, a copper roughing device 8, a first copper refining device 9, a second copper refining device 10, a third copper refining device 11, a first pulp thickener 12, a first copper scavenging device 13, a second copper scavenging device 14, a sulfur roughing device 15, a first sulfur refining device 16, a second hydrocyclone 18 of the first sulfur refining device 17, a second pulp thickener 19, a first sulfur scavenging device 20, a second sulfur scavenging device 21, an iron roughing device 22, an iron refining device 23, an ore pulp desulfurization device 24, a third pulp thickener 25, a third hydrocyclone 26 and a fourth pulp thickener 27.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
As shown in fig. 1, the grinding classification system for the copper-sulfur-iron ore according to the embodiment of the utility model comprises a crushing device 1, a screening device 2, a grinding device 3, a first hydrocyclone 4, a filtering device 5 and a high-frequency fine screen 6.
The feed inlet of screening plant 2 and breaker 1's discharge gate intercommunication, the feed back mouth of screening plant 2 and breaker 1's feed inlet intercommunication. The screening device 2 is used for screening the copper, iron and sulfur ores crushed by the crushing device 1, and feeding oversize products of the screening device 2 into the crushing device 1 through a feed back port of the screening device 2 for continuous crushing.
The feed inlet of the ore grinding device 3 is communicated with the discharge outlet of the screening device 2. The ore grinding device 3 is used for grinding the copper iron sulfur ore screened by the screening device 2 to form fine ore pulp.
The feed inlet of the first hydrocyclone 4 is communicated with the discharge outlet of the ore grinding device 3, and the first hydrocyclone 4 is used for grading the ore pulp ground by the ore grinding device 3.
The first hydrocyclone also comprises an overflow outlet for discharging overflow pulp and a grit outlet for discharging grit pulp. The sand setting port of the first hydrocyclone 4 is communicated with the feeding port of the ore grinding device 3, and sand setting ore pulp discharged through the sand setting port of the first hydrocyclone enters the ore grinding device 3 to be continuously ground.
The inlet of the filtering device 5 is communicated with the overflow of the first hydrocyclone 4. The filtering device 5 is used for filtering impurities in the overflow ore pulp. Wherein the impurities comprise wood chips, detonating tubes, light gangue mineral particles and the like.
The feed inlet of the high-frequency fine screen 6 is communicated with the discharge outlet of the filtering device 5, and the feed back port of the high-frequency fine screen 6 is communicated with the feed inlet of the ore grinding device 3. The high-frequency fine screen 6 is used for screening the overflow ore pulp of the first hydrocyclone 4 filtered by the filtering device 5 to obtain undersize ore pulp (fine ore pulp) meeting the flotation requirement, and feeding the oversize material of the high-frequency fine screen 6 into the crushing device 1 through a return port of the high-frequency fine screen 6 for continuous crushing.
In the grinding and grading system of the cuprum-pyrite ore in the embodiment of the present invention, the communication method between the devices may be any method that can be realized by the prior art, for example, the communication between the feeding port of the screening device 2 and the discharging port of the crushing device 1 may be realized by a conveying device, such as a conveying belt, a conveying chain, etc., or may be realized by manual handling, etc.
According to the ore grinding and grading system for the copper-sulfur-iron ore, in one-stage grading operation, the filtering device 5 is arranged between the first hydrocyclone 4 and the high-frequency fine screen 6, so that the phenomenon of coarse running of the first hydrocyclone 4 in the grading process can be effectively avoided, impurities with large volume and light weight in overflow ore pulp of the first hydrocyclone are further screened out, the overflow ore pulp of the first hydrocyclone 4 filtered by the filtering device 5 can enter the high-frequency fine screen 6 to be screened more smoothly, and in the screening process, the impurities in the overflow ore pulp of the first hydrocyclone 4 are further filtered, so that the high-frequency fine screen 6 is effectively prevented from being blocked and damaged by the impurities, the shutdown frequency of the high-frequency fine screen 6 is reduced, and the grading efficiency of the high-frequency fine screen 6 is increased.
The high-frequency vibration of the high-frequency fine sieve 6 can destroy the tension on the surface of the overflow ore pulp filtered by the filtering device 5, the adhesion among micro-fine particle material particles, the molecular attraction and the electrostatic force, so as to separate and sieve the material smaller than the sieve pores of the high-frequency fine sieve 6.
Therefore, the ore grinding and grading system for the copper-sulfur-iron ore has the advantages of being simple in structure, convenient to adjust the quality of the overflow ore pulp of the first hydrocyclone 4, capable of improving the production efficiency and the like.
As shown in fig. 1, the ore grinding, classifying and sorting system for copper iron sulfur ore further comprises a stirring tank 7 for stirring the undersize pulp of the high-frequency fine sieve 6, and a feed inlet of the stirring tank 7 is communicated with a discharge outlet of the high-frequency fine sieve 6.
According to the ore grinding and grading system for the copper-sulfur-iron ore, disclosed by the embodiment of the utility model, the undersize ore pulp of the high-frequency fine sieve 6 is stirred in the stirring tank 7, so that the acting force among minerals can be overcome, the reaction rate of the minerals and the medicines in the stirring tank 7 is increased, and the mineral recovery efficiency is improved.
The undersize pulp of the high-frequency fine screen 6 is stirred in the stirring tank 7 by a stirrer or by manual stirring, as will be understood by those skilled in the art.
As shown in fig. 1, the grinding, grading and sorting system for copper iron sulfur ore further comprises a copper roughing device 8, a first copper concentrating device 9, a second copper concentrating device 10, a third copper concentrating device 11 and a first pulp thickener 12,
the feed inlet of the copper roughing device 8 is communicated with the discharge outlet of the stirring tank 7, and the copper roughing device 8 is used for performing flotation on ore pulp in the stirring tank 7 to obtain copper roughing concentrate ore pulp and copper roughing tailing ore pulp.
The feed inlet of the first copper concentration device 9 is communicated with the concentrate discharge opening of the copper roughing device 8, the tailing discharge opening of the first copper concentration device 9 is communicated with the feed inlet of the copper roughing device 8, the first copper concentration device 9 is used for conducting flotation on the copper roughing concentrate pulp to obtain first copper concentration concentrate pulp, and the residual pulp in the first copper concentration device 9 is sent back to the copper roughing device 8 to continue copper ore flotation.
The feed inlet of the second copper concentration device 10 is communicated with the discharge outlet of the first copper concentration device 9, the tailing discharge outlet of the second copper concentration device 10 is communicated with the feed inlet of the first copper concentration device 9, and the second copper concentration device 10 is used for carrying out flotation on the first copper concentration ore pulp to obtain second copper concentration ore pulp and sending the residual ore pulp in the second copper concentration device 10 back to the first copper concentration device 9 for continuous flotation.
The feed inlet of the third copper concentration device is communicated with the discharge outlet of the second copper concentration device 10, the tailing discharge outlet of the third copper concentration device 11 is communicated with the feed inlet of the second copper concentration device 10, and the third copper concentration device 11 is used for carrying out flotation on the second copper concentration ore pulp to obtain third copper concentration ore pulp and sending the residual ore pulp in the third copper concentration device 11 back to the second copper concentration device 10 for continuous flotation.
The feed inlet of the first pulp thickener 12 is communicated with the discharge outlet of the third copper concentration device 11.
The third copper concentration concentrate pulp can be concentrated and filtered by the first pulp thickener 12 to obtain copper concentrate.
According to the ore grinding and grading system for the copper-sulfur-iron ore, provided by the embodiment of the utility model, the difference of floatability of each mineral (copper ore, iron ore and sulfur ore) in the copper-sulfur-iron ore is divided, and the copper ore is preferably concentrated for three times, so that the recovery efficiency and the grade of copper concentrate can be effectively improved.
As shown in fig. 1, the grinding, classifying and sorting system for the copper-sulfur-iron ore further comprises a first copper scavenging device 13 and a second copper scavenging device 14.
The feed inlet of the first copper scavenging device 13 is communicated with the tailing discharge outlet of the copper roughing device 8, the tailing discharge outlet of the first copper scavenging device 13 is communicated with the feed inlet of the copper roughing device 8, and the first copper scavenging device 13 is used for performing flotation on copper roughing tailing pulp to obtain first copper scavenging tailing pulp and sending the residual pulp in the first copper scavenging device 13 back to the copper roughing device 8 for continuous flotation.
The feed inlet of the second copper scavenging device 14 is communicated with the discharge outlet of the first copper scavenging device 13, the tailing discharge outlet of the second copper scavenging device 14 is communicated with the feed inlet of the first copper scavenging device 13, and the second copper scavenging device 14 is used for carrying out flotation on the first copper scavenging tailing pulp to obtain second copper scavenging tailing pulp and sending the residual pulp in the second copper scavenging device 14 back to the first copper scavenging device 13 for copper ore scavenging.
According to the ore grinding and grading system for the copper-sulfur-iron ore, the first copper scavenging device 13 and the second copper scavenging device 14 are matched, so that the copper ore in the ore pulp of the copper roughing tailings can be further recovered, and the recovery rate of the copper ore is improved.
As shown in fig. 1, the grinding, classifying and sorting system for the cuprum-pyrite ore further includes a sulfur roughing device 15, a first sulfur concentrating device 16, a second sulfur concentrating device 17, a second hydrocyclone and a second pulp thickener 19.
The feed inlet of the sulfur roughing device 15 is communicated with the discharge outlet of the second copper scavenging device 14, and the sulfur roughing device 15 is used for performing flotation on the second copper scavenging tailing pulp to obtain sulfur roughing concentrate pulp and sulfur roughing tailing pulp.
The feed inlet of the first sulfur concentration device 16 is communicated with the concentrate discharge outlet of the sulfur roughing device 15, the tailing discharge outlet of the first sulfur concentration device 16 is communicated with the feed inlet of the sulfur roughing device 15, the first sulfur concentration device 16 is used for carrying out flotation on the sulfur roughing concentrate pulp to obtain first sulfur concentration concentrate pulp, and the residual pulp in the first sulfur concentration device 16 is sent back to the sulfur roughing device 15 to continue sulfur ore flotation.
The feed inlet of the second sulfur concentration device 17 is communicated with the discharge outlet of the first sulfur concentration device 16, the tailing discharge outlet of the second sulfur concentration device 17 is communicated with the feed inlet of the first sulfur concentration device 16, and the second sulfur concentration device 17 is used for performing flotation on the first sulfur concentration ore pulp to obtain second sulfur concentration ore pulp, and sending the residual ore pulp in the second sulfur concentration device 17 back to the first sulfur concentration device 16 for continuous sulfur ore flotation.
The feed inlet of the second hydrocyclone 18 is communicated with the discharge outlet of the second sulfur concentration device 17, and the second hydrocyclone 18 is used for grading the second sulfur concentration concentrate pulp.
The second hydrocyclone comprises an overflow for discharging fine sludge and a sand settling opening for discharging a sulphur concentrate slurry.
The feed inlet of the second pulp thickener 19 is communicated with the sand settling port of the second hydrocyclone.
The sulphur concentrate pulp can be concentrated and filtered by the second pulp thickener 19 to obtain sulphur concentrate.
According to the ore grinding and grading system for the copper-sulfur-iron ore, provided by the embodiment of the utility model, the floatability of the sulfur ore and the iron ore in the second copper scavenging tailings is secondarily divided, the sulfur ore is preferably refined twice, the sulfur ore in the second copper scavenging tailings is recovered in preference to the iron ore, and the recovery efficiency and the grade of the sulfur concentrate are effectively improved.
As shown in fig. 1, the grinding, classifying and sorting system for the cuprum-pyrite ore further includes a first sulfur scavenging device 20 and a second sulfur scavenging device 21.
The feed inlet of the first sulfur scavenging device 20 is communicated with the tailing discharge outlet of the sulfur roughing device 15, the tailing discharge outlet of the first sulfur scavenging device 20 is communicated with the feed inlet of the sulfur roughing device 15, the first sulfur scavenging device 20 is used for carrying out flotation on the sulfur roughing tailing pulp to obtain first sulfur scavenging tailing pulp, and the residual pulp in the first sulfur scavenging device 20 is fed into the sulfur roughing device 15 to continuously carry out sulfur ore flotation.
The feed inlet of the second sulfur scavenging device 21 is communicated with the discharge outlet of the first sulfur scavenging device 20, the tailing discharge outlet of the second sulfur concentration device 17 is communicated with the feed inlet of the first sulfur scavenging device 20, the first sulfur scavenging device 21 is used for carrying out flotation on the first sulfur scavenging tailing pulp to obtain second sulfur scavenging tailing pulp, and the residual pulp in the second sulfur scavenging device 21 is fed into the first sulfur scavenging device 20 for scavenging continuously.
According to the ore grinding and grading system for the copper-sulfur-iron ore, provided by the embodiment of the utility model, the first sulfur scavenging device 20 and the second sulfur scavenging device 21 are matched, so that the sulfur ore in the ore pulp of the sulfur rougher tailings can be further recovered, and the recovery rate of the sulfur ore is improved.
As shown in fig. 1, the grinding, classifying and sorting system for the cuprum-pyrite ore further includes an iron roughing device 22, an iron refining device, a pulp desulfurization device 24 and a third pulp thickener 25.
The feed inlet of the iron roughing device 22 is communicated with the discharge outlet of the second sulfur scavenging device 21, and the iron roughing device 22 is used for carrying out magnetic separation on the second sulfur scavenging tailing pulp to obtain iron roughing concentrate pulp and iron roughing tailing pulp.
The feed inlet of the iron beneficiation plant is communicated with the concentrate discharge outlet of the iron roughing plant 22, which is used for carrying out magnetic separation on the iron roughing concentrate pulp to obtain iron beneficiated concentrate pulp and iron beneficiated tailing pulp.
The feed inlet of the ore pulp desulfurization device 24 is communicated with the concentrate discharge outlet of the iron concentration device, and the ore pulp desulfurization device 24 is used for desulfurizing the iron concentration ore pulp to obtain iron concentration ore pulp and iron concentration desulfurized ore pulp.
The feed inlet of the third pulp thickener 25 is communicated with the concentrate discharge outlet of the pulp desulphurization device 24.
The iron concentrate pulp can be concentrated and filtered by the third pulp thickener 25 to obtain iron concentrate.
As shown in fig. 1, the grinding, classifying and sorting system for the wulfenite further includes a third hydrocyclone 26 and a fourth pulp thickener 27.
The feed inlet of the third hydrocyclone 26 is respectively communicated with the overflow outlet of the second hydrocyclone 18, the tailing discharge outlet of the iron roughing device 22, the tailing discharge outlet of the iron roughing device and the tailing discharge outlet of the ore pulp desulfurization device 24.
The third hydrocyclone 26 is used for classifying the mixed slurry of the iron rougher tailing slurry, the iron cleaner tailing slurry, the iron ore concentrate desulfurized slurry and the fine mud.
The third hydrocyclone also comprises an overflow for discharging the fine fraction slurry and a grit outlet for discharging the packed slurry the feed inlet of the fourth slurry thickener 27 communicates with the overflow of the third hydrocyclone 26.
The dry pulp can be concentrated and filter-pressed by a fourth pulp thickener 27 to obtain dry heap tailings.
In some embodiments, the filtering means 5 is plural.
According to the ore grinding and grading system for the copper-sulfur-iron ore, provided by the embodiment of the utility model, the overflow ore pulp conveyed by the first hydrocyclone 4 can be further sieved for multiple times through the plurality of filtering devices 5, so that the overflow ore pulp is further ensured not to have a large amount of impurities when flowing into the high-frequency fine sieve 6 so as to influence the normal operation of the high-frequency fine sieve 6.
In some embodiments, the crushing device 1 is a jaw crusher, the grinding device 3 is a lattice ball mill, and the filtering device 5 is a linear vibrating screen.
According to the ore grinding and grading system for the copper-sulfur-iron ore, provided by the embodiment of the utility model, the jaw crusher has a large crushing ratio and is low in cost. The linear vibrating screen can efficiently screen the overflow ore pulp conveyed by the first hydrocyclone 4 for one or more times, and has low cost. The lattice ball mill has the characteristic of less over-grinding phenomenon, and can effectively prevent the over-grinding phenomenon by being combined with the copper-sulfur-iron ore grinding and grading system of the embodiment of the utility model, and can enable overflow ore pulp conveyed by the first hydrocyclone 4 in one-section grading operation to enter the high-frequency fine screen 6 to meet the use requirement under the condition of not changing various parameters (such as granularity composition and concentration of feeding ore pulp, pressure and lift of feeding and pumping, diameter and inclination of the hydrocyclone, diameter of a sand settling nozzle and the like) of the first hydrocyclone 4 in one-section grading operation in a complicated way.
In some embodiments, the screen of the screening device 2 has an aperture of 15 mm.
In some embodiments, the openings of the screen of the linear vibrating screen are 2mm by 15 mm.
In some embodiments, the high-frequency fine sieve 6 is vibrated at a frequency of 1500Hz and an amplitude of 1mm to 2mm, and the mesh of the high-frequency fine sieve 6 has an aperture of 0.1mm to 0.15 mm.
Preferably, the amplitude of the high-frequency fine sieve 6 is 1.5mm, and the aperture of the screen of the high-frequency fine sieve 6 is 0.125 mm.
The ore grinding and classifying system for the copper-sulfur iron ore according to the embodiment of the present invention will be described below by way of a specific example.
Crushing the copper-pyrite with the copper content of 0.582%, the iron content of 24.97% and the sulfur content of 10.13% to the granularity of less than 15mm, and feeding
Grinding with a lattice ball mill, adding water into the pulp discharged from the mill to obtain pulp with a concentration of 58.00%, a particle size of more than 0.074mm at 70.00% and a particle size of less than 0.074mm at 30.00%, and pumping the pulp to a pump
The first hydrocyclone 4 group carries out a first-stage classification operation, the concentration of overflow ore pulp output by the first hydrocyclone 4 is 39.00%, the granularity is more than 0.074mm and is 40.80% and less than 0.074mm and is 59.20%, the concentration of settled sand ore pulp output by the first hydrocyclone 4 is 78.00%, the granularity is more than 0.074mm and is 86.50% and less than 0.074mm and is 13.50%, and the classification efficiency is 50.20%. Then, the overflow ore pulp of the first hydrocyclone 4 automatically flows into a slag separation linear vibrating screen for screening operation, and the screen mesh has the aperture of 2mm multiplied by 15mm (the length is 2mm, and the width is 2 mm)15mm) for separating and removing wood chips, detonating tubes, light gangue mineral particles and the like brought in the mining process and large particles carried by the classifying overflow of the hydrocyclone so as to protect the high-frequency fine screen 6. Then, the undersize ore pulp of the linear vibrating screen automatically flows into the high-frequency fine screen 6 to carry out second-stage classification operation, the aperture of the screen of the high-frequency fine screen 6 is 0.125mm, the undersize ore pulp of the high-frequency fine screen 6 is obtained, the concentration is 35.00%, the granularity is more than 0.074mm and is 25.20%, and the granularity is less than 0.074mm and is 74.80%. The concentration of the ore pulp on the sieve of the high-frequency fine sieve 6 is 50.00 percent, the granularity is more than 0.074mm and accounts for 76.96 percent, the granularity is less than 0.074mm and accounts for 23.04 percent, and the grading efficiency is 88.27 percent. And combining the settled sand pulp conveyed by the first hydrocyclone 4 and the oversize pulp of the high-frequency fine screen 6, and automatically flowing into a ball mill for grinding to form a grinding closed circuit.
The undersize ore pulp of the high-frequency fine sieve 6 is subjected to the beneficiation process of 'preferentially selecting copper, dressing copper tailings and then dressing sulfur, dressing sulfur tailings and then dressing iron by magnetic separation and desulfurizing iron rough concentrate', so that copper concentrate with the copper-containing grade of 18.32% and the recovery rate of 88.56% is obtained. The total iron grade is 64.13%, the recovery rate is 52.00%, and the recovery rate of the magnetic iron is 96.00%. Sulfur content 41.64%, recovery 74.11% sulfur concentrate.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
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; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. The utility model provides a copper iron sulfur ore's ore grinding is hierarchical selects separately system which characterized in that includes:
a crushing device;
the screening device is used for screening the copper-iron-sulfur ores crushed by the crushing device, a feed inlet of the screening device is communicated with a discharge outlet of the crushing device, and a feed back port of the screening device is communicated with a feed inlet of the crushing device;
the ore grinding device is used for grinding the copper iron sulfur ore screened by the screening device, and a feed inlet of the ore grinding device is communicated with a discharge outlet of the screening device;
the first hydrocyclone is used for grading the ore pulp ground by the ore grinding device, the feed inlet of the first hydrocyclone is communicated with the discharge outlet of the ore grinding device, the first hydrocyclone further comprises an overflow port for discharging the overflow ore pulp and a sand setting port for discharging the sand setting ore pulp, and the sand setting port of the first hydrocyclone is communicated with the feed inlet of the ore grinding device;
the filtering device is used for filtering impurities in the overflow ore pulp, and a feed inlet of the filtering device is communicated with an overflow port of the first hydrocyclone;
the high-frequency fine screen is used for screening overflow ore pulp after the filtering device filters, the feed inlet of the high-frequency fine screen is communicated with the discharge port of the filtering device, and the feed back port of the high-frequency fine screen is communicated with the feed inlet of the ore grinding device.
2. The ore grinding, classifying and sorting system for the copper iron sulfur ore according to claim 1, further comprising an agitating tank for agitating the undersize slurry of the high frequency fine sieve, wherein a feed inlet of the agitating tank is communicated with a discharge outlet of the high frequency fine sieve.
3. The system for grinding, classifying and sorting copper iron sulfur ore according to claim 2, further comprising:
the feeding hole of the copper roughing device is communicated with the discharging hole of the stirring tank, and the copper roughing device is used for performing flotation on ore pulp in the stirring tank to obtain copper roughing concentrate ore pulp and copper roughing tailing ore pulp;
the feed inlet of the first copper concentration device is communicated with the concentrate discharge outlet of the copper roughing device, the tailing discharge outlet of the first copper concentration device is communicated with the feed inlet of the copper roughing device, and the first copper concentration device is used for performing flotation on the copper roughing concentrate pulp to obtain first copper concentration concentrate pulp;
the feed inlet of the second copper concentration device is communicated with the discharge outlet of the first copper concentration device, the tailing discharge outlet of the second copper concentration device is communicated with the feed inlet of the first copper concentration device, and the second copper concentration device is used for performing flotation on the first copper concentration ore pulp to obtain second copper concentration ore pulp;
the feed inlet of the third copper concentration device is communicated with the discharge outlet of the second copper concentration device, the tailing discharge outlet of the third copper concentration device is communicated with the feed inlet of the second copper concentration device, and the third copper concentration device is used for performing flotation on the second copper concentration ore pulp to obtain third copper concentration ore pulp;
a first pulp thickener having a feed inlet in communication with the discharge outlet of the third copper concentration device for thickening and filtering the third copper concentration concentrate pulp to obtain copper concentrate.
4. The system for grinding, classifying and sorting copper iron sulfur ore according to claim 3, further comprising:
the first copper scavenging device is used for carrying out flotation on the copper roughing tailing pulp to obtain first copper scavenging tailing pulp;
the second copper scavenging device, the feed inlet of second copper scavenging device with the discharge gate intercommunication of first copper scavenging device, the tailing bin outlet of second copper scavenging device with the feed inlet intercommunication of first copper scavenging device, the second copper scavenging device is used for right first copper scavenging tailing ore pulp carries out the flotation in order to obtain second copper scavenging tailing ore pulp.
5. The system for grinding, classifying and sorting the copper iron sulfur ore according to claim 4, further comprising:
a feed inlet of the sulfur roughing device is communicated with a discharge outlet of the second copper scavenging device, and the sulfur roughing device is used for performing flotation on the second copper scavenging tailing pulp to obtain sulfur roughing concentrate pulp and sulfur roughing tailing pulp;
the first sulfur concentration device is used for carrying out flotation on the sulfur roughing concentrate pulp to obtain a first sulfur concentration concentrate pulp;
the feed inlet of the second sulfur concentration device is communicated with the discharge outlet of the first sulfur concentration device, the tailing discharge outlet of the second sulfur concentration device is communicated with the feed inlet of the first sulfur concentration device, and the second sulfur concentration device is used for performing flotation on the first sulfur concentration ore pulp to obtain second sulfur concentration ore pulp;
the second hydrocyclone is used for grading the second sulfur concentration concentrate pulp, the feed inlet of the second hydrocyclone is communicated with the discharge outlet of the second sulfur concentration device, and the second hydrocyclone comprises an overflow port for discharging fine mud and a sand setting port for discharging sulfur concentrate pulp;
a second pulp thickener having a feed inlet in communication with the grit chamber of the second hydrocyclone, the second pulp thickener being for thickening and filtering the sulfur concentrate pulp to obtain sulfur concentrate.
6. The system for grinding, classifying and sorting the copper iron sulfur ore according to claim 5, further comprising:
the first sulfur scavenging device is used for carrying out flotation on the sulfur rougher tailing pulp to obtain first sulfur scavenged tailing pulp;
the second sulfur scavenging device, the feed inlet of second sulfur scavenging device with the discharge gate intercommunication of first sulfur scavenging device, the tailing bin outlet of second sulfur concentration device with the feed inlet intercommunication of first sulfur scavenging device, the second sulfur scavenging device is used for right first sulfur scavenging tailing ore pulp carries out the flotation in order to obtain second sulfur scavenging tailing ore pulp.
7. The system for grinding, classifying and sorting the copper iron sulfur ore according to claim 6, further comprising:
the feeding hole of the iron roughing device is communicated with the discharging hole of the second sulfur scavenging device, and the iron roughing device is used for carrying out magnetic separation on the second sulfur scavenging tailing pulp to obtain iron roughing concentrate pulp and iron roughing tailing pulp;
the iron concentration device is used for carrying out magnetic separation on the iron roughing concentrate pulp to obtain iron concentrate pulp and iron tailing pulp;
the ore pulp desulfurization device is used for desulfurizing the iron concentrate ore pulp to obtain iron concentrate ore pulp and iron concentrate desulfurized ore pulp;
and the feed inlet of the third ore pulp thickener is communicated with the concentrate discharge outlet of the ore pulp desulfurization device, and the third ore pulp thickener is used for concentrating and filtering the iron ore concentrate ore pulp to obtain iron ore concentrate.
8. The system for grinding, classifying and sorting copper iron sulfur ore according to claim 7, further comprising:
the third hydraulic cyclone is used for grading the mixed slurry of the iron roughing tailing slurry, the iron beneficiated desulfurized ore slurry and the fine mud, a feed inlet of the third hydraulic cyclone is respectively communicated with an overflow port of the second hydraulic cyclone, a tailing discharge port of the iron roughing device, a tailing discharge port of the iron beneficiated device and a tailing discharge port of the ore slurry desulfurization device, and the third hydraulic cyclone comprises an overflow port for discharging fine-grained ore slurry and a sand setting port for discharging filled ore slurry;
and a feed inlet of the fourth pulp thickener is communicated with an overflow port of the third hydrocyclone, and the fourth pulp thickener is used for concentrating and filter-pressing the fine fraction pulp to obtain dry-piled tailings.
9. The system for grinding, classifying and sorting the copper iron sulfur ore according to claim 1, wherein the filtering device is plural.
10. The copper iron sulfur ore grinding, classifying and sorting system according to any one of claims 1 to 9, wherein the crushing device is a jaw crusher, the grinding device is a lattice ball mill, and the filtering device is a linear vibrating screen; the aperture of the screen of the screening device is 15mm, the aperture of the screen of the linear vibrating screen is 2mm multiplied by 15mm, the vibration frequency of the high-frequency fine screen is 1500Hz, the vibration amplitude is 1mm-2mm, and the aperture of the screen of the high-frequency fine screen is 0.1-0.15 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022855088.9U CN215429503U (en) | 2020-12-01 | 2020-12-01 | Ore grinding, grading and sorting system for copper iron sulfur ore |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022855088.9U CN215429503U (en) | 2020-12-01 | 2020-12-01 | Ore grinding, grading and sorting system for copper iron sulfur ore |
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| CN215429503U true CN215429503U (en) | 2022-01-07 |
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