CN104772212A - Separation system - Google Patents
Separation system Download PDFInfo
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- CN104772212A CN104772212A CN201510083328.9A CN201510083328A CN104772212A CN 104772212 A CN104772212 A CN 104772212A CN 201510083328 A CN201510083328 A CN 201510083328A CN 104772212 A CN104772212 A CN 104772212A
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- magnetic separation
- dry type
- ore deposit
- type wind
- current stabilization
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
Abstract
The invention provides a separation system, which comprises a roller press, a flow stabilizing bin, a wind grading system, a powered screening system and dry type magnetic separation systems, and the separation system is characterized in that the separation system is arranged longitudinally. Occupied floor area is saved by the separation system, a belt conveyer does not need to be used for conveying when material flows, and thereby enormous cost and energy consumption are reduced; moreover, because water is not needed in the process of separation, water resource is saved, and the separation system can be applied to places short of water resource.
Description
Technical field:
The present invention relates to a kind of ore deposit and select system, particularly relate to a kind of ore deposit for ferrous metal and non-ferrous metal and select system.
Background technology:
The magnetic iron ore of current maturation selects iron technology to be dry-type pulverizing+wet grinding+wet type ore dressing (as shown in Figure 1), so floor space is very large, the foundation of civil work of equipment is also very complicated, and construction difficulty is large; Existing ore deposit selecting technology needs a large amount of water to carry out ore grinding and wet magnetic separation, so water consumption is large, tail draining simultaneously causes water pollutions.
Disclose a kind of mineral processing technology for processing iron ore in Chinese patent CN102489373B, be roughly following steps: 1, crushing raw ore is become that granularity < 30mm's is rough, roughly send in elevator by the first belt conveyor; 2, ore rises on the second belt conveyor of exceeding by elevator, fed in unpowered winnowing machine by the second belt conveyor and carry out selection by winnowing, the material cake formed after granularity > 1.5mm rough enters roll squeezer roll-in by current stabilization storehouse with send into from the first belt conveyor rough mix after again promote to be fed in unpowered winnowing machine by the second belt conveyor and carry out unpowered selection by winnowing; 3, the mineral fine of granularity≤1.5mm is sent in power winnowing machine and is carried out selection by winnowing, the superfine powder selecting granularity < 0.2mm directly enters rotoclone collector, the coarse fodder do not selected away is sent in magnetic powder concentrator and is selected smart iron powder, and gangue mineral is discharged as mine tailing; 4, the differential of granularity < 0.04 is selected by rotoclone collector, and the fines do not selected away is sent into magnetic powder concentrator and selected smart iron powder, and gangue mineral is discharged as mine tailing, and micro mist enters in bag collector or cottrell and collects; The part of 5, collecting is sent into magnetic powder concentrator and is selected smart iron powder, and gangue mineral is discharged as mine tailing.Those of ordinary skill in the art have devised grinding system as shown in Figure 2, Figure 3 and Figure 4 according to this above-mentioned patent document.But, according to the still following problem of ubiquity in the production system that this patent document is made:
1. floor space is large, and the production scale for the treatment of capacity 70 tons calculates by the hour, and need take up an area 5000 square metres, the transmission range of material is 600 meters.
2. because the conveying of material is by the restriction of the angle of climb of belt feeder, to realize the feeding mouth transporting material to a leave from office magnetic separator, then the shortest length of belt feeder should be not less than L (computing formula: L=h/tan (α), wherein: h is the minimum altitude of magnetic separator feeding mouth, α is the allowable angle of inclination of belt feeder); Quantity simultaneously when magnetic separator is more, and required belt feeder is more, and the installation domain of belt feeder is larger, and expending of belt is larger.
3. the production line for the treatment of capacity 70 tons calculates by the hour, needed for accompanying drawing 2, accompanying drawing 3, accompanying drawing 4 three kinds of schemes, the quantity of belt feeder is at least 11,9,17 respectively, expending by process 800,000 tons of calculation of total of belt, then need 30 covers, 32 covers, 28 cover belts respectively.And in use, in about 6 ~ 12 months service life of belt in general work situation, so every 6 ~ 12 months will integral replacing belt, consume huge cost.The production scale for the treatment of capacity 70 tons calculates by the hour, and meeting per hour expends 23 degree of electricity, and energy consumption is large.
4. the magnetic iron ore grade selected is low, yields poorly.Consider by the dry-type magnetic extractor of prior art, when in selected material, the grade of iron is 10% ~ 15%, the fine powder grade selected through a magnetic separation is about 30%; When in selected material, the grade of iron is 25% ~ 30%, the fine powder grade selected through a magnetic separation is about 40%; Output is at about 40 tons; On the other hand, when the fine powder grade that a magnetic separation is selected is low, those of ordinary skill in the art can expect that increasing magnetic separator quantity upgrades, although increase the grade that magnetic separation number of times can improve fine powder, but the best record of the fine powder grade selected through repeatedly magnetic separation of the dry-type magnetic extractor of prior art is 45 ~ 50%, is less than the sale grade of national Specification: Iron concentrate >=58% (the wet magnetic separation function of prior art reaches the grade of more than 60%); If consider to increase magnetic separator quantity, then need to increase feeding belt conveyer, the increase of magnetic separator and belt feeder simultaneously, all will increase floor space, also can increase expending of energy consumption and belt simultaneously.
5. environmental pollution is serious.Occur emitting grey phenomenon to cause air pollution in a large number.
Summary of the invention:
A kind of ore deposit for ferrous metal and non-ferrous metal is the object of the present invention is to provide to select system.
To achieve these goals, the present invention is achieved in that
System is selected in a kind of ore deposit, and comprise roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system, described ore deposit selects system to be longitudinal layout.Described ore deposit selects system to save floor space, when material stream passed without the need to using belt conveyor to carry, saves huge cost and energy consumption; And to select in process without the need to water in ore deposit, save water resource, the place lacking water resource can be applied in.
Select the structure of system to optimize ore deposit further, described dry type magnetic separation system is positioned at the below of power screening system.The fine powder meeting Particle size requirements can carry out magnetic separation by entering in described dry type wind magnetic separation system more swimmingly, without the need to using belt conveyor to carry, providing cost savings and energy consumption, optimizing the structure that system is selected in whole ore deposit.
In order to further to described grinding system rational deployment, roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to three layers, four layers or five layers in the vertical; Roll squeezer is positioned at bottom, power screening system is positioned at top layer, current stabilization position in storehouse is in intermediate layer.What the present invention was creative select ore deposit, and system is the layout of " building " formula, farthest can save described ore deposit and selects the floor space of system and reduce cost of investment and the construction cost of foundation of civil work; And be beneficial to the natural flow of material, save material energy spent in transportation and material; In addition, to select in ore deposit in process without the need to water, save water resource, avoid the pollution of waste water to environment, the place lacking water resource can be applied to.
Preferably, roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to four layers in the vertical, ground floor is followed successively by the 4th layer from bottom to top layer, described roll squeezer is arranged at ground floor, described current stabilization storehouse is arranged at the second layer, described air classification Operation system setting is in third layer, and described power screening system is arranged at the 4th layer, and described dry type wind magnetic separation system is arranged on first and second and three layers.Described ore deposit selects system footprint area minimum and pole is beneficial to the flowing of material, saves transmission range and decreases transmission energy consumption, and improve the efficiency of whole grinding system.
Preferably, roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to three layers in the vertical, described roll squeezer is arranged at bottom, described current stabilization storehouse is arranged at intermediate layer, described air classification system and power screening system are arranged at top layer, and described dry type wind magnetic separation system is arranged at intermediate layer and/or bottom.Major impetus during air classification system material handling is wind-force, and sorting energy loss is little, and the efficiency of separation is high.
Preferably, roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to three layers in the vertical, described roll squeezer is arranged at bottom, described current stabilization storehouse is arranged at intermediate layer, described power screening system is arranged at top layer, described air classification Operation system setting is in bottom, and described dry type wind magnetic separation system is arranged at bottom and intermediate layer.Be convenient to patrol and examine observation, maintenance and inspection are conveniently.
Preferably, roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to five layers in the vertical, ground floor is followed successively by the 4th layer from bottom to top layer, described roll squeezer is arranged at bottom, described current stabilization storehouse is arranged at the second layer, described power screening system is arranged at top layer, described air classification Operation system setting is in third layer, described dry type wind magnetic separation system is arranged at bottom, the second layer and third layer, or be arranged at second, third, the 4th layer.When head grade is very low, the such as raw ore of grade below 10%, under floor space is constant, the grade that can reach fine powder is greater than 60%; And provide space for the assembly and layout optimizing dry type wind magnetic separation system.
In order to make described dry type wind magnetic separation system to operate to steady and continuous further, described dry type wind magnetic separation system comprises transitional storehouse and dry type wind magnetic separation unit.Improve efficiency and the stability of magnetic separation.
Preferably, described transitional storehouse is positioned at the lower floor of described power screening system, and described dry type wind magnetic separation unit is positioned at the lower floor of described transitional storehouse.This whole ore deposit selects system layout more to optimize, and save and take up an area, and material can flow more smoothly.
In order to improve the grade of the magnetic iron ore selected further, described dry type wind magnetic separation unit is for single cover or overlap more.Further increase the grade of the magnetic iron ore selected.Preferably, above-mentioned many cover dry type wind magnetic separation units are longitudinally arrange.Not only save floor space further, and be more suitable for the flowing of material, save energy consumption, to upgrade, output.
Above-mentioned roll squeezer is connected with described current stabilization storehouse, and described current stabilization storehouse is connected with described air classification system, and described air classification system is connected with described power screening system, and described power screening system is connected with described dry type wind magnetic separation system.
In order to improve the output of described grinding system further, described power screening system is connected with described current stabilization storehouse.Further increase grade and the output of described grinding system.
Preferably, the entrance of described transitional storehouse is connected with described power screening system, and the outlet of described transitional storehouse is connected with described dry type wind magnetic separation system.
In order to reduce energy consumption further, described ore deposit selects system also to comprise elevator; Described elevator is connected with described roll squeezer with described air classification system, or/and described elevator is connected with described current stabilization storehouse with described air classification system.Sorting can not only be carried out by described for the rough feeding after fragmentation air classification system easily, and reduce energy consumption, and greatly improve the efficiency of separation.
In order to avoid air pollution further, described magnetic separation system also comprises dust collecting system, and described dust collecting system is connected with described power screening system.In order to avoid air pollution further, described dust collecting system is connected with described dry type wind magnetic separation system (unit).Described dust collecting system carries out collection process to choosing the dust of generation in ore deposit, avoids dust and enters in air environment.
Connected between said apparatus is connected by modes such as pipeline, chute, nonstandard scraper-trough conveyer or steel plate pipeline, nonstandard scraper-trough conveyers.The consumption of further minimizing energy and equipment (as belt), saves cost, and avoids air pollution.
Select in ore deposit in process, first described air classification system is entered through the rough of fragmentation, described air classification system carries out classification to rough, select the thin ore deposit meeting Particle size requirements and send into described power screening system, do not meet the described current stabilization storehouse of rough feeding of Particle size requirements, again by the collection in described current stabilization storehouse and control to send in described roll squeezer, described roll squeezer carries out roll-in grind rough, and rough again the feeding in described air classification system after roll-in being ground carries out classification; Described power screening system sieves thin ore deposit, select the ultra-fine ore deposit meeting Particle size requirements and send into next process, and the thin ore deposit not meeting Particle size requirements is fed into described current stabilization storehouse, again by described current stabilization from collection and control to send into described roll squeezer, described roll squeezer carries out roll-in to thin ore deposit and grinds, rough again feeding in described wind-force blower fan system after roll-in being ground carries out classification, repeats above-mentioned steps; And be fed to described dry type wind magnetic separation system through the ultra-fine ore deposit meeting Particle size requirements that power screening system screens and carry out magnetic separation.
Beneficial effect:
1. ore deposit of the present invention selects system to utilize space resources, optimize the unitary construction of system greatly, not only Flow of Goods and Materials is more smooth and easy, and save occupation of land, the production scale for the treatment of capacity 70 tons compares by the hour, prior art takes up an area about 6000 square metres, and the present invention's occupation of land only needs 1000-1200 square metre; Decrease the transmission range of material between each device, the transmission range of material about 600 meters in prior art, and the transmission range of material of the present invention only has 100-110 rice simultaneously; Decrease energy consumption, compare by treating capacity is identical, prior art needs 23 degree of electricity/h, and the present invention only needs 14-15 degree electricity/h; Improve the efficiency that system is selected in whole ore deposit, whole system is without water simultaneously, has saved equipment cost and water resource.
2. ore deposit of the present invention selects system magnetic separation effective, and on the one hand, the magnetic iron ore grade using ore deposit of the present invention to select system can make to select reaches 60%-65%; On the other hand, the product grading that this ore deposit selects system to select can need to regulate according to user, and adjustable range is wide, product grading adjustable extent :-200 orders account for 55 ~ 95%; .
3. the present invention reduces personnel demand, also reduces the competency profiling of personnel simultaneously; Be conducive to patrol officer to fix a breakdown.
4. ore deposit of the present invention selects that system effectiveness is high, output is high.Ore selects after system process through ore deposit of the present invention, and mineral grain naturally dissociates by crystalline solid forming surface and grinds, and metalliferous mineral dissociates completely; The inclined sheet of microscopic particles shape of product and needle-like, be conducive to pelletizing and be shaped, improve pelletizing efficiency 30%, be of value to raising efficiency of magnetic separation; The output of ore grinding can improve 20 ~ 50%, efficiency improves 20 ~ 30%.
5. ore deposit of the present invention selects system synthesis energy consumption low, and this ore deposit selects system energy consumption in the course of the work lower than People's Republic of China's iron and steel industry professional standard---the primary standard 30% of the magnetic dressing process of regulation, the unit raw ore ore dressing comprehensive energy consumption of flotation flowsheet in " bargh's mining energy consumption ration standard part 2: iron ore dressing YB/T4417.2-2014 ".
6. because material stream passed mode and the dust collecting system of system is selected in this ore deposit, greatly reduce ore deposit and select pollution on the environment in process, the dust content of air venting is less than 20mg/Nm3, and the dust emission being better than national Specification requires the environmental requirement being not more than 30mg/Nm3, without atmosphere pollution.
7. native system ore grinding, classification, screening and the flowing of magnetic separation process materials are smooth and easy, there will not be material alluvial clogging, not only ensure that the quality of product, improve service efficiency and the service life of equipment simultaneously, reduce maintenance cost.
8. ore deposit of the present invention selects system to reduce cost of investment, existing ore deposit selects system to need to set up tailing dam to the waste water produced after processing magnetic separation and waste material, and the dry dust that this ore deposit selects system only to need dust collecting system to be produced carries out collecting and backfills the problem that just can solve waste material.Compare by the production scale of day output 1700 tons, the input cost of prior art on tailing dam is about 10,000,000 yuan, land, and the maintenance cost in later stage is also very high, needs the expense of about 25,000,000 yuan every year; And the present invention does not need to build tailing dam, only the tail powder of collection need be backfilled, therefore in the process of mine tailing, only need about 1,000,000 yuan, seven, 80,000,000 yuan can be cut down expenses.
9. the ore deposit of the present invention fine powder of selecting system to select, the microscopic particles shape due to fine powder is of value to pelletizing and is shaped, and improves pelletizing efficiency, reduces the operation cost of pelletizing plant, improves the benefit of pelletizing plant.
Accompanying drawing illustrates:
Fig. 1 is the structure chart that system is selected in the ore deposit of prior art;
Fig. 2 is that those of ordinary skill in the art select system 1 according to the ore deposit that background technology designs;
Fig. 3 is that those of ordinary skill in the art select system 2 according to the ore deposit that background technology designs;
Fig. 4 is that those of ordinary skill in the art select system 3 according to the ore deposit that background technology designs;
Fig. 5 is the structure chart of embodiment 2;
Fig. 6 is the structure chart of embodiment 3;
Fig. 7 is the structure chart of embodiment 4;
Fig. 8 is the structure chart of embodiment 5.
Fig. 9 is the structure chart of embodiment 5.
detailed description of the invention:
Introduce the present invention by by the embodiment shown in accompanying drawing below, but the present invention is not limited to introduced embodiment, any improvement or alternative on the present embodiment essence spirit, still belongs to the claims in the present invention scope required for protection:
Embodiment 1: system is selected in a kind of ore deposit, comprises roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system, and described ore deposit selects system to be longitudinal layout.
In the process of magnetic separation, first described air classification system is entered through the rough of fragmentation, described air classification system carries out classification to rough, select the thin ore deposit meeting Particle size requirements and send into described power screening system, do not meet the described current stabilization storehouse of rough feeding of Particle size requirements, again by the collection in described current stabilization storehouse and control to send in described roll squeezer, described roll squeezer carries out roll-in grind rough, and rough again the feeding in described air classification system after roll-in being ground carries out classification; Described power screening system sieves thin ore deposit, selects the ultra-fine ore deposit meeting Particle size requirements and is fed to described dry type wind magnetic separation system and carries out magnetic separation, repeats above-mentioned steps.
Native system without the need to using water resource, and can save occupation of land.
Embodiment 2: as shown in Figure 5, system is selected in a kind of ore deposit, comprises roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system, and described ore deposit selects system to be longitudinal layout; Roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to four layers in the vertical, ground floor is followed successively by the 4th layer from bottom to top layer, described roll squeezer is arranged at ground floor, described current stabilization storehouse is arranged at the second layer, described air classification Operation system setting is in third layer, described power screening system is arranged at the 4th layer, and described dry type wind magnetic separation system is arranged on first and second and three layers.
In the process of magnetic separation, first the air classification system being positioned at third layer is entered through the rough of fragmentation, described air classification system carries out classification to rough, select the thin ore deposit meeting Particle size requirements and send into the power screening system being positioned at the 4th layer, the rough feeding not meeting Particle size requirements is positioned at the current stabilization storehouse of the second layer, again by the collection in described current stabilization storehouse and control to send into the roll squeezer being arranged in ground floor, described roll squeezer carries out roll-in grind rough, and rough again the feeding in described air classification system after roll-in being ground carries out classification; Described power screening system sieves thin ore deposit, selects the ultra-fine ore deposit meeting Particle size requirements and sends into the dry type wind magnetic separation system being positioned at first and second and three layers and carry out magnetic separation, repeat above-mentioned steps.
The present embodiment is saved and is taken up an area, and the production system of the treating capacity of 80-90h/t takes up an area 1000 square metres, transmission range 100 meters, power consumption per hour 15 degree, and magnetic iron ore taste reaches 60-65%.
Embodiment 3: as shown in Figure 6, system is selected in a kind of ore deposit, comprises roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system, and described ore deposit selects system to be longitudinal layout; Roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to three layers in the vertical, described roll squeezer is arranged at bottom, described current stabilization storehouse is arranged at intermediate layer, described air classification system and power screening system are arranged at top layer, and described dry type wind magnetic separation system is arranged at intermediate layer and bottom; Described dry type wind magnetic separation system comprises transitional storehouse and dry type wind magnetic separation unit, and described transitional storehouse is positioned at intermediate layer, and described dry type wind magnetic separation unit is arranged on bottom.This ore deposit selects system also to comprise dust collecting system, and described dust collecting system is connected with described dry type wind magnetic separation unit with described power screening system.
In the process of magnetic separation, first the air classification system being positioned at top layer is entered through the rough of fragmentation, described air classification system carries out classification to rough, select the thin ore deposit meeting Particle size requirements and send into the power screening system being positioned at top layer, the rough feeding not meeting Particle size requirements is positioned at the current stabilization storehouse in intermediate layer, again by the collection in described current stabilization storehouse and control to send into the roll squeezer being arranged in bottom, described roll squeezer carries out roll-in grind rough, and rough again the feeding in described air classification system after roll-in being ground carries out classification; Described power screening system sieves thin ore deposit, select the ultra-fine ore deposit meeting Particle size requirements and be fed to the transitional storehouse being arranged in intermediate layer, described transitional storehouse is collected ultra-fine ore deposit and is controlled and ultra-fine ore deposit is fed the dry type wind magnetic separation unit being arranged in bottom to carry out magnetic separation, repeats above-mentioned steps.
The present embodiment implementation result:
1. the present embodiment takes up an area little, and the production scale for the treatment of capacity 70 tons compares by the hour, and prior art takes up an area about 6000 square metres, and the present embodiment occupation of land only has 1200 square metres, takes up an area minimizing 80%; Transmission range between device is short, the transmission range of material about 600 meters in prior art, and the transmission range of the present embodiment material is 100 meters, and transmission range decreases 83%; Energy consumption is low, compares by treating capacity is identical, and prior art needs 23 degree of electricity, and the present embodiment is 14 degree of electricity, economize on electricity 39%; Magnetic iron ore grade reaches 63%; Product grading scope is adjustable, and the product grading that the present embodiment is selected can regulate according to user's actual production demand, and adjustable range is wide, product grading adjustable extent :-200 orders account for 55 ~ 95%.
2. the present embodiment output is high, carries out comparing calculation by the production scale of 70t/h, the output of prior art is 70 tons, and the output of the present embodiment can reach 85 ~ 95 tons, output increased 20% ~ 40%; On the other hand, compared with prior art, the efficiency of ore grinding and ore dressing improves 20% ~ 50% simultaneously.
3. the dust content of air venting is less than 20mg/Nm3, and the dust emission being better than national Specification requires the environmental requirement being not more than 30mg/Nm3, without atmosphere pollution.
4. the long service life of equipment, can reach more than 15000 hours, than service life of equipment of the prior art long 20 ~ 30%.
5. the ore deposit of the present embodiment selects system to reduce cost, existing ore deposit selects system to need to set up tailing dam to the waste water produced after processing magnetic separation and waste material, and the dry dust that this ore deposit selects system only to need dust collecting system to be produced carries out collecting and backfills the problem that just can solve waste material.Compare by the production scale of day output 1700 tons, the input cost of prior art on tailing dam is about 10,000,000 yuan, land, and the maintenance cost in later stage is also very high, needs the expense of about 25,000,000 yuan every year; And the present invention does not need to build tailing dam, only the tail powder of collection need be backfilled, therefore in the process of mine tailing, only need about 1,000,000 yuan, seven, 80,000,000 yuan can be cut down expenses.
6. the present invention reduces personnel demand, also reduces the competency profiling of personnel simultaneously; Be beneficial to patrol officer to fix a breakdown.
Embodiment 4: as shown in Figure 7, system is selected in a kind of ore deposit, comprises roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system, and described ore deposit selects system to be longitudinal layout, roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to five layers in the vertical, described roll squeezer is arranged at bottom, described current stabilization storehouse is arranged at the second layer, described air classification Operation system setting is in third layer, described power screening system is arranged at top layer, described dry type wind magnetic separation system comprises transitional storehouse and dry type wind magnetic separation unit, described transitional storehouse is positioned at the 4th layer, described dry type wind magnetic separation unit is two covers or three cover or more the cover longitudinally arranged, and described dry type wind magnetic separation unit is arranged on the second layer and third layer or is arranged on first, second and third layer, described roll squeezer is connected with described current stabilization storehouse, described current stabilization storehouse is connected with described air classification system, described air classification system is connected with described power screening system, and described dry type wind magnetic separation unit is connected with described transitional storehouse, and described power screening system is connected with described current stabilization storehouse.This ore deposit selects system also to comprise dust collecting system, and described dust collecting system is connected with described dry type wind magnetic separation unit with described power screening system by pipeline.
In the process of magnetic separation, through the broken rough air classification system first feeding third layer, described air classification system carries out classification to rough, select the thin ore deposit meeting Particle size requirements and send into the power screening system being positioned at top layer, the rough feeding not meeting Particle size requirements is positioned at the current stabilization storehouse of the second layer, collection again through described current stabilization storehouse and control feeding are arranged in the roll squeezer of bottom, described roll squeezer carries out roll-in grind rough, and rough again the feeding in described air classification system after roll-in being ground carries out classification; Described power screening system sieves thin ore deposit, select the ultra-fine ore deposit meeting Particle size requirements and send into next process, and the thin ore deposit not meeting Particle size requirements is fed into described current stabilization storehouse, collection again through described current stabilization storehouse and control feed in described roll squeezer, described roll squeezer carries out roll-in to thin ore deposit and grinds, and the thin ore deposit after roll-in being ground again is sent in described wind-force blower fan system and carried out classification; And the transitional storehouse being arranged in the 4th layer is fed to through the ultra-fine ore deposit meeting Particle size requirements that power screening system screens, the feeding of ultra-fine ore deposit is arranged in two covers of second, third layer or first, second, third layer or many cover dry type wind magnetic separation units carry out magnetic separation successively through the collection and controlling of described transitional storehouse; Repeat above-mentioned steps.
The present embodiment implementation result:
1. the present embodiment takes up an area little, and the production scale for the treatment of capacity 70 tons compares by the hour, and prior art takes up an area about 6000 square metres, and the present embodiment occupation of land only has 1200 square metres, takes up an area minimizing 80%; Transmission range between device is short, the transmission range of material about 600 meters in prior art, and the transmission range of the present embodiment material is 110 meters, and transmission range decreases 82%; Energy consumption is low, compares by treating capacity is identical, and prior art needs 23 degree of electricity, and the present embodiment is 15 degree of electricity, economize on electricity 35%; Magnetic iron ore grade reaches 65%; Product grading scope is adjustable, and the product grading that the present embodiment is selected can regulate according to user's actual production demand, and adjustable range is wide, product grading adjustable extent :-200 orders account for 55 ~ 95%.
2. the present embodiment output is high, carries out comparing calculation by the production scale of 70t/h, the output of prior art is 70 tons, and the output of the present embodiment can reach 85 ~ 95 tons, output increased 20% ~ 40%; On the other hand, compared with prior art, the efficiency of ore grinding and ore dressing improves 20% ~ 50% simultaneously.
3. the dust content of air venting is less than 20mg/Nm3, and the dust emission being better than national Specification requires the environmental requirement being not more than 30mg/Nm3, without atmosphere pollution.
4. the long service life of equipment, can reach more than 15000 hours, than service life of equipment of the prior art long 20 ~ 30%.
5. the ore deposit of the present embodiment selects system to reduce cost, existing ore deposit selects system to need to set up tailing dam to the waste water produced after processing magnetic separation and waste material, and the dry dust that this ore deposit selects system only to need dust collecting system to be produced carries out collecting and backfills the problem that just can solve waste material.Compare by the production scale of day output 1700 tons, the input cost of prior art on tailing dam is about 10,000,000 yuan, land, and the maintenance cost in later stage is also very high, needs the expense of about 25,000,000 yuan every year; And the present invention does not need to build tailing dam, only the tail powder of collection need be backfilled, therefore in the process of mine tailing, only need about 1,000,000 yuan, seven, 80,000,000 yuan can be cut down expenses.
6. the present invention reduces personnel demand, also reduces the competency profiling of personnel simultaneously; Be beneficial to patrol officer to fix a breakdown.
Embodiment 5: as shown in Figure 8,9, system is selected in a kind of ore deposit, comprises roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system, and described ore deposit selects system to be longitudinal layout, roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to four layers in the vertical, ground floor is followed successively by the 4th layer from bottom to top layer, described roll squeezer is arranged at ground floor, described current stabilization storehouse is arranged at the second layer, described air classification Operation system setting is in third layer, described power screening system is arranged at the 4th layer, described dry type wind magnetic separation system comprises transitional storehouse and dry type wind magnetic separation unit, described transitional storehouse is positioned at third layer, described dry type wind magnetic separation unit is two cover or three covers longitudinally arranged, and described dry type wind magnetic separation unit can be separately positioned on ground floor and the second layer (Fig. 8), also ground floor (Fig. 9) can be arranged on after stack combinations up and down, described roll squeezer is connected with described current stabilization storehouse, described current stabilization storehouse is connected with described air classification system, described air classification system is connected with described power screening system, and described dry type wind magnetic separation unit is connected with described transitional storehouse, and described power screening system is connected with described current stabilization storehouse, described ore deposit selects system also to comprise elevator, the outlet of described elevator is connected with described air classification system, and the entrance of described elevator is connected with described roll squeezer.This ore deposit selects system also to comprise dust collecting system, and described dust collecting system is connected with described dry type wind magnetic separation unit with described power screening system by pipeline.
In the process of magnetic separation, promote through elevator through the rough of fragmentation, then feeding is positioned at the air classification system of third layer, described air classification system carries out classification to rough, select the thin ore deposit meeting Particle size requirements and send into the power screening system being positioned at the 4th layer, the rough feeding not meeting Particle size requirements is positioned at the current stabilization storehouse of the second layer, collection again through described current stabilization storehouse and control feeding are arranged in the roll squeezer of ground floor, described roll squeezer carries out roll-in grind rough, rough after roll-in being ground sends into described elevator again, rough lifting after roll-in grinds by described elevator also feeds in described air classification system and carries out classification, described power screening system sieves thin ore deposit, select the ultra-fine ore deposit meeting Particle size requirements and send into next process, and the thin ore deposit not meeting Particle size requirements is fed into described current stabilization storehouse, again through described current stabilization from collection and control feeding described roll squeezer, described roll squeezer carries out roll-in to thin ore deposit and grinds, described elevator is sent in thin ore deposit after roll-in being ground, thin ore deposit after roll-in grinds by described elevator promotes and again sends in described wind-force blower fan system carries out classification, and the transitional storehouse being arranged in third layer is fed to through the ultra-fine ore deposit meeting Particle size requirements that power screening system screens, through described transitional storehouse collection and control ultra-fine ore deposit is fed the dry type wind magnetic separation unit being arranged in the second layer and ground floor successively to carry out magnetic separation, repeat above-mentioned steps.
The present embodiment implementation result:
1. the present embodiment takes up an area little, and the production scale for the treatment of capacity 70 tons compares by the hour, and prior art takes up an area about 6000 square metres, and the present embodiment occupation of land only has 1200 square metres, takes up an area minimizing 80%; Transmission range between device is short, the transmission range of material about 600 meters in prior art, and the transmission range of the present embodiment material is 100 meters, and transmission range decreases 83%; Energy consumption is low, compares by treating capacity is identical, and prior art needs 23 degree of electricity, and the present embodiment is 14 degree of electricity, economize on electricity 39%; Magnetic iron ore grade reaches 64%; Product grading scope is adjustable, and the product grading that the present embodiment is selected can regulate according to user's actual production demand, and adjustable range is wide, product grading adjustable extent :-200 orders account for 55 ~ 95%.
2. the present embodiment output is high, carries out comparing calculation by the production scale of 70t/h, the output of prior art is 70 tons, and the output of the present embodiment can reach 85 ~ 95 tons, output increased 20% ~ 40%; On the other hand, compared with prior art, the efficiency of ore grinding and ore dressing improves 20% ~ 50% simultaneously.
3. the dust content of air venting is less than 20mg/Nm3, and the dust emission being better than national Specification requires the environmental requirement being not more than 30mg/Nm3, without atmosphere pollution.
4. the long service life of equipment, can reach more than 15000 hours, than service life of equipment of the prior art long 20 ~ 30%.
5. the ore deposit of the present embodiment selects system to reduce cost, existing ore deposit selects system to need to set up tailing dam to the waste water produced after processing magnetic separation and waste material, and the dry dust that this ore deposit selects system only to need dust collecting system to be produced carries out collecting and backfills the problem that just can solve waste material.Compare by the production scale of day output 1700 tons, the input cost of prior art on tailing dam is about 10,000,000 yuan, land, and the maintenance cost in later stage is also very high, needs the expense of about 25,000,000 yuan every year; And the present invention does not need to build tailing dam, only the tail powder of collection need be backfilled, therefore in the process of mine tailing, only need about 1,000,000 yuan, seven, 80,000,000 yuan can be cut down expenses.
6. the present invention reduces personnel demand, also reduces the competency profiling of personnel simultaneously; Be beneficial to patrol officer to fix a breakdown.
Claims (18)
1. a system is selected in ore deposit, comprises roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type magnetic separation system, it is characterized in that: described ore deposit selects system to be longitudinal layout.
2. system is selected in ore deposit as claimed in claim 1, and described dry type magnetic separation system is positioned at the below of power screening system.
3. system is selected in ore deposit as claimed in claim 1, it is characterized in that: roll squeezer, current stabilization storehouse, air classification system and power screening system, dry type magnetic separation system are set to three layers, four layers or five layers in the vertical; Roll squeezer is positioned at bottom, power screening system is positioned at top layer, current stabilization position in storehouse in intermediate layer, dry type magnetic separation system is positioned at intermediate layer or bottom.
4. system is selected in ore deposit as claimed in claim 3, it is characterized in that: roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to four layers in the vertical, ground floor is followed successively by the 4th layer from bottom to top layer, described roll squeezer is arranged at ground floor, described current stabilization storehouse is arranged at the second layer, described air classification Operation system setting is in third layer, and described power screening system is arranged at the 4th layer, and described dry type wind magnetic separation system is arranged on first and second and three layers.
5. system is selected in ore deposit as claimed in claim 3, it is characterized in that: roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to three layers in the vertical, described roll squeezer is arranged at bottom, described current stabilization storehouse is arranged at intermediate layer, described air classification system and power screening system are arranged at top layer, and described dry type wind magnetic separation system is arranged at intermediate layer and bottom.
6. system is selected in ore deposit as claimed in claim 3, it is characterized in that: roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to three layers in the vertical, described roll squeezer is arranged at bottom, described current stabilization storehouse is arranged at intermediate layer, described power screening system is arranged at top layer, described air classification Operation system setting is in bottom, and described dry type wind magnetic separation system is arranged at bottom and intermediate layer.
7. system is selected in ore deposit as claimed in claim 3, it is characterized in that: roll squeezer, current stabilization storehouse, air classification system, power screening system and dry type wind magnetic separation system are set to five layers in the vertical, ground floor is followed successively by layer 5 from bottom to top layer, described roll squeezer is arranged at bottom, described current stabilization storehouse is arranged at the second layer, described power screening system is arranged at top layer, described air classification Operation system setting is in third layer, and described dry type wind magnetic separation system is arranged at bottom, second, third layer and/or the 4th layer.
8. system is selected in the ore deposit as described in above-mentioned any one claim, it is characterized in that: described dry type wind magnetic separation system comprises transitional storehouse and dry type wind magnetic separation unit.
9. system is selected in ore deposit as claimed in claim 8, and it is characterized in that: described transitional storehouse is positioned at the lower floor of described power screening system, described dry type wind magnetic separation unit is positioned at the lower floor of described transitional storehouse.
10. system is selected in the ore deposit as described in claim 9 or 8, it is characterized in that: described dry type wind magnetic separation unit is for single cover or overlap more.
System is selected in 11. ore deposits as claimed in claim 10, it is characterized in that: many cover dry type wind magnetic separation units are for longitudinally arranging.
System is selected in 12. ore deposits as described in above-mentioned any one claim, it is characterized in that: described roll squeezer is connected with described current stabilization storehouse, described current stabilization storehouse is connected with described air classification system, described air classification system is connected with described power screening system, and described power screening system is connected with described dry type wind magnetic separation system.
System is selected in 13. ore deposits as claimed in claim 12, it is characterized in that: dry type wind magnetic separation system comprises transitional storehouse and dry type wind magnetic separation unit, and transitional storehouse is connected with dry type wind magnetic separation unit.
System is selected in 14. ore deposits as described in above-mentioned any one claim, it is characterized in that: described power screening system is connected with described current stabilization storehouse.
System is selected in 15. ore deposits as described in above-mentioned any one claim, it is characterized in that: described ore deposit selects system also to comprise elevator; Described elevator is connected with described roll squeezer with described air classification system, or/and described elevator is connected with described current stabilization storehouse with described air classification system.
System is selected in 16. ore deposits as described in above-mentioned any one claim, and it is characterized in that: described ore deposit selects system also to comprise dust collecting system, described dust collecting system is connected with described power screening system.
System is selected in 17. ore deposits as claimed in claim 16, it is characterized in that: described dust collecting system is connected with described dry type wind magnetic separation unit.
18. as arbitrary in claim 11-17 as described in ore deposit select system, it is characterized in that: described be connected be by pipeline, chute, nonstandard scraper-trough conveyer, steel plate or canvas mode be connected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510083328.9A CN104772212A (en) | 2015-02-15 | 2015-02-15 | Separation system |
| PCT/CN2016/073411 WO2016127899A1 (en) | 2015-02-15 | 2016-02-04 | Ore dressing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510083328.9A CN104772212A (en) | 2015-02-15 | 2015-02-15 | Separation system |
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| CN201510083328.9A Pending CN104772212A (en) | 2015-02-15 | 2015-02-15 | Separation system |
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| CN (1) | CN104772212A (en) |
| WO (1) | WO2016127899A1 (en) |
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| WO2016127899A1 (en) * | 2015-02-15 | 2016-08-18 | 胡沿东 | Ore dressing system |
| WO2016127900A1 (en) * | 2015-02-15 | 2016-08-18 | 胡沿东 | Ore dressing system |
| CN114618635A (en) * | 2022-03-28 | 2022-06-14 | 胡沿东 | Dry grinding and dry separation process of magnetic iron ore |
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| WO2016127899A1 (en) | 2016-08-18 |
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Application publication date: 20150715 |