CN102872970A - Process for improving quality and reducing impurities of tin stone multi-metal sulfide ore tin ore concentrate and combined equipment - Google Patents
Process for improving quality and reducing impurities of tin stone multi-metal sulfide ore tin ore concentrate and combined equipment Download PDFInfo
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- CN102872970A CN102872970A CN2012104183464A CN201210418346A CN102872970A CN 102872970 A CN102872970 A CN 102872970A CN 2012104183464 A CN2012104183464 A CN 2012104183464A CN 201210418346 A CN201210418346 A CN 201210418346A CN 102872970 A CN102872970 A CN 102872970A
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Abstract
The invention relates to the field of metallurgy and particularly relates to a process for improving quality and reducing impurities of a tin stone multi-metal sulfide ore tin ore concentrate and combined equipment. The process comprises the following three procedures of: adjusting the grade of a shaking bed cut ore; increasing a procedure of sulfur removal and impurity removal for a tin rough ore concentrate; and increasing a procedure of tin selection of the ore concentrate subjected to the sulfur removal and impurity removal, so as to ensure the quality of the tin ore concentrate. The grade of the tin ore concentrate and the sulfur and arsenic content can easily reach to the quality standard of the ore concentrate; the requirements on the grade of the shaking bed cut ore are reduced and the cutting amount of the tin ore concentrated is obviously increased; the tin recycling rate is obviously improved; and a tine stone which is difficult to recycle and is tightly grown with a pyrite ore is sufficiently recycled on a shaking bed, and is produced in a manner of an enriched ore, so that the recycling rate of tin is improved.
Description
Technical field
The present invention relates to field of metallurgy, particularly general labourer's skill and unit equipment fall in a kind of tin concentrate upgrading of cassiterite polymetallic sulphide ore.
Background technology
The tin concentrate mainly adopts reducing smelting process at present, requires feed grade to reach more than 40%, and sulphur, arsenic are the harmful elements of tin concentrate, require sulphur+arsenic content＜4%, sulphur arsenic content overproof will increase smelting cost in the tin concentrate, directly have influence on tin concentrate selling price.Along with the continuous progress of tin smelter technology, the tin grade enters stove greater than 2.5% rich chats also can obtain preferably technical-economic index, and its selling price is 50% of qualified tin concentrate.
Cassiterite disseminated grain size in the cassiterite polymetallic sulphide ore stone is thinner, tinnery is general both at home and abroad adopts traditional shaking table technique to select tin, in order to reach the requirement of tin concentrate quality, generally the direct tin concentrate of output tin grade more than 40% in shaking table avoids sulfoarsenic mineral to sneak in the tin concentrate as far as possible in the production.
Cassiterite polymetallic sulphide ore stone Minerals forms complicated, often contain the pyrites such as a large amount of pyrite, magnetic iron ore, mispickel, and pyrite and cassiterite symbiosis are comparatively close, in order to reduce pyrite to selecting the interference of tin, select tin to adopt flotation, magnetic selection method to remove pyrite as last.Since the relatively poor or magnetic of part pyrite floatability a little less than, still have the part pyrite to enter and select the tin operation, cause bed surface to divide being with unclear, micro fine particle and pyrite are mixed in together in the concentrate band can not cut in the tin concentrate, cause micro-size fraction cassiterite to be difficult to reclaim, also increased simultaneously the difficulty of shaking table operation, how the tin concentrate has intercepted then, and the tin concentrate quality can't guarantee, sulphur arsenic content overproof in the tin concentrate, the tin concentrate cuts and has lacked and affect the tin rate of recovery, and tin concentrate quality and the rate of recovery all are a greater impact, therefore, the shaking table operation is in the dilemma all the time, finally causes two technical indicators of tin concentrate quality and the tin rate of recovery all to be a greater impact.
Because part pyrite and cassiterite adjoin adhesion or parcel Fine cassiterite in the cassiterite polymetallic sulphide ore stone, such as reinforcing desulfuration deironing before selecting tin, though can reduce pyrite to the interference of gravity treatment, can increase the loss of tin, therefore, pyrite thoroughly should not be removed before selecting tin.
Comprehensive above situation, when cassiterite polymetallic sulphide ore stone selects tin, the problem that unavoidably exists pyrite to disturb, at the direct tin concentrate of output grade more than 40% on the shaking table, not only the tin concentrate quality is difficult to guarantee, and the tin rate of recovery also is difficult to improve.
Summary of the invention
The interference of pyrite is large and affect the problem of tin concentrate quality and the tin rate of recovery when the present invention is directed to cassiterite polymetallic sulphide ore and selecting tin, research and develop the upgrading of a kind of cassiterite polymetallic sulphide ore tin concentrate and fallen assorted technique and unit equipment, can avoid pyrite to selecting the interference of tin, reach the purpose that improves tin concentrate quality and the tin rate of recovery.
ThisInvention is achieved in that general labourer skill falls in the upgrading of a kind of cassiterite polymetallic sulphide ore tin concentrate, may further comprise the steps:
The first step: with in the table concentrate band take cassiterite as main, the tin concentrate material of tin grade 40% or more, with in the concentrate band take pyrite and micro fine particle as lead, the mixed material of tin grade 5 ~ 10% intercepts the tin rough concentrate of output tin grade 18 ~ 25% in the lump;
Second step: only be that 1 ~ 5% tin rough concentrate is concentrated to 35 ~ 40% concentration with the concentration of first step output, then enter agitator, add successively sulfuric acid, collecting agent, foaming agent stirring, enter again the impurity desulfurization flotation flowsheet, obtain tin grade more than 40%, sulphur+arsenic content less than 4% tin concentrate product, froth pulp is stanniferous higher sulphur concentrate;
The 3rd step: the sulphur concentrate of second step output enters the grind grading flow process, obtain fineness and be-ore milling product of 0.045mm grain size content 75 ~ 85%, enter the sulphur concentrate again and select the tin flow process, obtain the rich chats of tin of stanniferous 2.5-3%, froth pulp is stanniferous lower sulphur concentrate.
Further: described impurity desulfurization flotation flowsheet by one roughing, scan for twice, twice selected totally five flotation operation form.
Further: described sulphur concentrate select the tin flow process by one roughing, recleaning totally 3 flotation operations form.
Further: described sulphur concentrate grind grading flow process is comprised of ore grinding and two operations of classification, and the sulphur concentrate of second step output carries out first classification, and fine fraction enters the sulphur concentrate and selects the tin flow process, and coarse fraction carries out returning graded operation behind the ore grinding.
Assorted unit equipment falls in the upgrading of a kind of cassiterite polymetallic sulphide ore tin concentrate, formed by concentrator 2, agitating device 3, a flotation unit 4, No. two flotation units 15, Unit of Milling and Sorting 10, concentrator 2 has two outlets, an outlet is overflow water outlet A1, another outlet connects agitating device 3 for thickener underflow outlet A2, thickener underflow outlet A2, and agitating device 3 connects a flotation unit 4, No. one flotation unit 4 has two outlets, and an outlet is tin concentrate outlet A6; Another outlet connects Unit of Milling and Sorting 10 for froth pulp outlet A7, Unit of Milling and Sorting 10 connects No. two flotation units 15, No. two flotation unit 15 has two outlets, and an outlet is sulphur concentrate outlet A11, and another outlet is the rich chats outlet of tin A10.
Further: described Unit of Milling and Sorting 10 is comprised of ball mill 13, cyclone 12, material pond 14, mortar pump 11, the froth pulp outlet A7 of a flotation unit 4 connects material pond 14, the import of slag stock pump 11 connects material pond 14, and outlet connects cyclone 12; The sand setting outlet of cyclone 12 connects the import of ball mill 13, and the outlet of ball mill 13 connects material pond 14, and the overflow outlet A8 of cyclone 12 connects No. two flotation units 15.
Further: a described flotation unit 4 by roughly select flotation unit I 5, scan a flotation unit 6, scan two flotation units 7, a selected flotation unit I 8, selected two flotation unit I 9 form, agitating device 3 connects roughly selects flotation unit I 5, roughly select flotation unit I 5 mine tailings outlet connection and scan a flotation unit 6, froth pulp outlet C1 connects the import B3 of a selected flotation unit I 8; Scan a flotation unit 6 mine tailings outlet connection and scan two flotation units 7, the import B1 of flotation unit I 5 is roughly selected in froth pulp outlet C2 connection; An outlet of scanning two flotation units 7 is tin concentrate outlet A6, and another connects the import B2 that scans a flotation unit 6 for froth pulp outlet C3; A selected flotation unit I 8 mine tailings outlet connects roughly selects flotation unit I 5, and froth pulp outlet C4 connects the import B4 of selected two flotation unit I 9; The mine tailing outlet of selected two flotation unit I 9 connects a selected flotation unit I 8, and froth pulp outlet A7 connects material pond 14.
Further: described agitating device 3 is to be in series by two agitators.
Further: the described flotation unit I 5 of roughly selecting is to be in series by 3-4 platform flotation device; Scan a flotation unit 6 and be that to be in series, to scan two flotation units 7 by 2-3 platform flotation device be to be in series by 2-3 platform flotation device, precision sorting flotation machine group I 8 is to be in series by 2-3 platform flotation device, and selected two flotation units 7 are to be in series by 1-2 platform flotation device.
Further: described No. two flotation units 15 form by roughly selecting flotation unit II 16, a selected flotation unit II 17 and selected two flotation unit II 18, an outlet of roughly selecting flotation unit II 16 is the rich chats outlet of tin A10, and another outlet is connected to the import B5 of single-minded flotation unit II 16 for froth pulp outlet C5; The mine tailing outlet of a selected flotation unit II 17 connects roughly selects flotation unit II 16, and froth pulp outlet C6 connects the import B6 of selected two flotation unit II 18; Selected two flotation unit II 18 have two outlets, and the mine tailing outlet connects a selected flotation unit II 17, and froth pulp outlet A11 is final sulphur concentrate outlet.
Further: the described flotation unit II 16 of roughly selecting is to be in series by 2-3 platform flotation device; A selected flotation unit II 17 is to be in series by 1-2 platform flotation device, and selected two flotation unit II 18 are to be in series by 1-2 platform flotation device.
Useful technique effect of the present invention: this process reform before on shaking table the direct method of output tin concentrate, with tin grade in the table concentrate band more than 40% the tin concentrate and intercept in the lump take pyrite, micro fine particle as main mixed material, the tin rough concentrate of output grade 18 ~ 25%, again tin rough concentrate is carried out the impurity desulfurization flotation, sulphur concentrate to the impurity desulfurization output further selects tin, can reach following effect: the one, reduced the difficulty to the shaking table operation, tin concentrate grade and sulphur arsenic content all reach the concentrate quality standard easily; The 2nd, reduced the loss of micro fine particle, promoted the raising of the tin rate of recovery; Three is four to be the cassiterite that has fully reclaimed the tight symbiosis of pyrite that is difficult to reclaim at shaking table, with the rich chats form of tin output, has further improved the rate of recovery of tin.
Description of drawings
Fig. 1 is flow chart of the present invention;
Fig. 2 is the device connection diagram of invention.
Among the figure: the 1-tin rough concentrate, the 2-concentrator, the 3-agitating device, flotation unit of 4-, 5-roughly selects flotation unit I, 6-scans a flotation unit, 7-scans two flotation units, the selected flotation unit I of 8-, the selected two flotation unit I of 9-, 10-Unit of Milling and Sorting, 11-slag stock pump, the 12-cyclone, the 13-ball mill, 14-material pond, No. two flotation units of 15-, 16-roughly selects flotation unit II, the selected flotation unit II of 17-, the selected two flotation unit II of 18-, the outlet of A1-overflow water, the outlet of A2-thickener underflow, the import of A3-agitating device, the outlet of A4-agitating device, the import of a flotation unit of A5-, A6-tin concentrate outlet, the froth pulp outlet of a flotation unit of A7-, the overflow outlet of A8-cyclone, the import of No. two flotation units of A9-, the rich chats outlet of A10-tin, A11-sulphur concentrate outlet, the froth pulp import of a flotation unit of B1 ~ B4-, the froth pulp outlet of a flotation unit of C1 ~ C4-, the froth pulp import of No. two flotation units of B5 ~ B6-, the outlet of No. two flotation units of C5 ~ C6 froth pulp.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing, understands to make things convenient for the technical staff.
Operation principle of the present invention:
(1) when ore pulp and rinse water respectively by give the ore deposit, when feed trough feeds shaking table surface simultaneously, the cassiterite that proportion is larger, pyrite and cassiterite intergrowth are deposited in reflex bar channel bottom, be subjected to the comprehensive function of vertical inertia force and frictional force terminal mobile to shaking table, at the terminal concentrate band that forms of shaking table, the gangue that proportion is less is positioned at reflex bar groove top, be subjected to horizontal impact of water effect to do transverse movement along the inclination bed surface, discharge from the mine tailing side at last.Concentrate end Mineral Zonation is obvious, and the cassiterite that Relative Size is thicker is positioned at the outside, presents obvious cassiterite color (brown is hereinafter referred to as tin concentrate band), and tin concentrate band impurity is few, and the tin grade is more than 40%; And the mine belt adjacent with tin concentrate band is the mixture of cassiterite and troilite, mainly formed by Relative Size thick pyrite and thinner cassiterite or the cassiterite intergrowth of granularity, (brassy, black also have a small amount of brown to present obvious pyrite color, hereinafter referred to as mixed zone), the tin grade 5 ~ 10% of mixed zone.If tin concentrate band and mixed zone are intercepted the tin rough concentrate of output tin grade 18 ~ 25% in the lump, remove again pyrite wherein, micro fine particle is fully reclaimed, tin concentrate output obviously increases, and improves tin rate of recovery purpose thereby reach.
(2) contain a large amount of pyrites in the tin rough concentrate, this part pyrite is not removed before selecting tin because floatability is poor, the poor main cause of floatability is that mineral surfaces is subject to oxidation, need add sulfuric acid and remove the oxide-film on surface, make it to recover normal floatability, add again an amount of collecting agent and foaming agent pyrite is fully floated.Because pyrite content is higher in the tin rough concentrate, one time flotation operation can't remove pyrite totally, the cassiterite of carrying secretly in the froth pulp is also more, adopt by one roughing, secondary scan, recleaning the flotation flowsheet that forms of totally 5 operations just can satisfy the demand.
(3) the sulphur concentrate of tin rough concentrate impurity desulfurization flotation output is stanniferous higher, main cause is that wherein part pyrite and cassiterite adjoin adhesion or is enclosed with Fine cassiterite, can make cassiterite wherein from pyrite, dissociate out by regrinding, or change rich intergrowth into, change intergrowth into from parcel from lean intergrowth.Select in the tin operation at the sulphur concentrate, the pyrite of monomer dissociation better enters froth pulp because of its floatability, the stanniferous lower sulphur concentrate of output, and cassiterite intergrowth, inclusion enclave and the cassiterite of monomer dissociation is relatively poor because of its floatability, discharge at last the rich chats of the tin of output tin grade 2.5 ~ 3% from the mine tailing mouth.For fear of the loss of the excessive flotation increase of troilite tin, the sulphur concentrate selects tin to adopt the flotation flowsheet that is comprised of one roughing, recleaning to satisfy the demand.
Embodiment 1: general labourer's skill falls in the upgrading of a kind of cassiterite polymetallic sulphide ore tin concentrate, may further comprise the steps:
The first step: with in the table concentrate band take cassiterite as main, the tin concentrate material of tin grade 40% or more, with in the concentrate band take pyrite and micro fine particle as lead, the mixed material of tin grade 5 ~ 10% intercepts the tin rough concentrate of output tin grade 18 ~ 25% in the lump;
Second step: only be that 1 ~ 5% tin rough concentrate is concentrated to 35% concentration with the concentration of first step output, then enter agitator, add successively sulfuric acid, collecting agent, foaming agent stirring, enter again the impurity desulfurization flotation flowsheet, obtain tin grade more than 40%, sulphur+arsenic content less than 4% tin concentrate product, froth pulp is stanniferous higher sulphur concentrate;
The 3rd step: the sulphur concentrate of second step output enters the grind grading flow process, obtains fineness be-ore milling product of 0.045mm grain size content 75%, enters the sulphur concentrate again and selects the tin flow process, obtains stanniferous 2% tin richness chats, and froth pulp is stanniferous lower sulphur concentrate.
Described impurity desulfurization flotation flowsheet by one roughing, scan for twice, twice selected totally five flotation operation form.
Described sulphur concentrate select the tin flow process by one roughing, recleaning totally 3 flotation operations form.
Described sulphur concentrate grind grading flow process is comprised of ore grinding and two operations of classification, and the sulphur concentrate of second step output carries out first classification, and fine fraction enters the sulphur concentrate and selects the tin flow process, and coarse fraction carries out returning graded operation behind the ore grinding.
Embodiment 2: general labourer's skill falls in the upgrading of a kind of cassiterite polymetallic sulphide ore tin concentrate, may further comprise the steps:
The first step: with in the table concentrate band take cassiterite as main, the tin concentrate material of tin grade 40% or more, with in the concentrate band take pyrite and micro fine particle as lead, the mixed material of tin grade 5 ~ 10% intercepts the tin rough concentrate of output tin grade 18 ~ 25% in the lump;
Second step: only be that 1 ~ 5% tin rough concentrate is concentrated to 37% concentration with the concentration of first step output, then enter agitator, add successively sulfuric acid, collecting agent, foaming agent stirring, enter again the impurity desulfurization flotation flowsheet, obtain tin grade more than 40%, sulphur+arsenic content less than 4% tin concentrate product, froth pulp is stanniferous higher sulphur concentrate;
The 3rd step: the sulphur concentrate of second step output enters the grind grading flow process, obtains fineness be-ore milling product of 0.045mm grain size content 80%, enters the sulphur concentrate again and selects the tin flow process, obtains stanniferous 2.5% tin richness chats, and froth pulp is stanniferous lower sulphur concentrate.
Described impurity desulfurization flotation flowsheet by one roughing, scan for twice, twice selected totally five flotation operation form.
Described sulphur concentrate select the tin flow process by one roughing, recleaning totally 3 flotation operations form.
Described sulphur concentrate grind grading flow process is comprised of ore grinding and two operations of classification, and the sulphur concentrate of second step output carries out first classification, and fine fraction enters the sulphur concentrate and selects the tin flow process, and coarse fraction carries out returning graded operation behind the ore grinding.
Embodiment 3: general labourer's skill falls in the upgrading of a kind of cassiterite polymetallic sulphide ore tin concentrate, may further comprise the steps:
The first step: with in the table concentrate band take cassiterite as main, the tin concentrate material of tin grade 40% or more, with in the concentrate band take pyrite and micro fine particle as lead, the mixed material of tin grade 5 ~ 10% intercepts the tin rough concentrate of output tin grade 18 ~ 25% in the lump;
Second step: only be that 1 ~ 5% tin rough concentrate is concentrated to 40% concentration with the concentration of first step output, then enter agitator, add successively sulfuric acid, collecting agent, foaming agent stirring, enter again the impurity desulfurization flotation flowsheet, obtain tin grade more than 40%, sulphur+arsenic content less than 4% tin concentrate product, froth pulp is stanniferous higher sulphur concentrate;
The 3rd step: the sulphur concentrate of second step output enters the grind grading flow process, obtains fineness be-ore milling product of 0.045mm grain size content 85%, enters the sulphur concentrate again and selects the tin flow process, obtains stanniferous 3% tin richness chats, and froth pulp is stanniferous lower sulphur concentrate.
Described impurity desulfurization flotation flowsheet by one roughing, scan for twice, twice selected totally five flotation operation form.
Described sulphur concentrate select the tin flow process by one roughing, recleaning totally 3 flotation operations form.
Described sulphur concentrate grind grading flow process is comprised of ore grinding and two operations of classification, and the sulphur concentrate of second step output carries out first classification, and fine fraction enters the sulphur concentrate and selects the tin flow process, and coarse fraction carries out returning graded operation behind the ore grinding.
Embodiment 4: such as Fig. 2, assorted unit equipment falls in the upgrading of a kind of cassiterite polymetallic sulphide ore tin concentrate, by concentrator 2, agitating device 3, a flotation unit 4, No. two flotation units 15, Unit of Milling and Sorting 10 forms, tin rough concentrate 1 enters concentrator 2, concentrator 2 has two outlets, an outlet is overflow water outlet A1, another outlet is thickener underflow outlet A2, thickener underflow outlet A2 connects the import A3 of agitating device 3, the outlet A4 of agitating device 3 connects a flotation unit 4, No. one flotation unit 4 has two outlets, and an outlet is tin concentrate outlet A6; Another outlet connects Unit of Milling and Sorting 10 for froth pulp outlet A7, Unit of Milling and Sorting 10 connects No. two flotation units 15, No. two flotation unit 15 has two outlets, and an outlet is sulphur concentrate outlet A11, and another outlet is the rich chats outlet of tin A10.
Described Unit of Milling and Sorting 10 is comprised of ball mill 13, cyclone 12, material pond 14, mortar pump 11, and the froth pulp outlet A7 of a flotation unit 4 connects material pond 14, and the import of slag stock pump 11 connects material pond 14, and outlet connects cyclone 12; The sand setting outlet of cyclone 12 connects the import of ball mill 13, and the outlet of ball mill 13 connects material pond 14, and the overflow outlet A8 of cyclone 12 connects No. two flotation units 15.
A described flotation unit 4 by roughly select flotation unit I 5, scan a flotation unit 6, scan two flotation units 7, a selected flotation unit I 8, selected two flotation unit I 9 form, the import A5 of flotation unit I 5 is roughly selected in the outlet A4 connection of agitating device 3, roughly select flotation unit I 5 mine tailings outlet connection and scan a flotation unit 6, froth pulp outlet C1 connects the import B3 of a selected flotation unit I 8; Scan a flotation unit 6 mine tailings outlet connection and scan two flotation units 7, the import B1 of flotation unit I 5 is roughly selected in froth pulp outlet C2 connection; An outlet of scanning two flotation units 7 is tin concentrate outlet A6, and another connects the import B2 that scans a flotation unit 6 for froth pulp outlet C3; A selected flotation unit I 8 mine tailings outlet connects roughly selects flotation unit I 5, and froth pulp outlet C4 connects the import B4 of selected two flotation unit I 9; The mine tailing outlet of selected two flotation unit I 9 connects a selected flotation unit I 8, and froth pulp outlet A7 connects material pond 14.
Described agitating device 3 is to be in series by two agitators, and the outlet of first agitator connects the import of second agitator.
The described flotation unit I 5 of roughly selecting is to be in series by 3 flotation devices; Scan a flotation unit 6 and be that to be in series, to scan two flotation units 7 by 2 flotation devices be to be in series by 2 flotation devices, precision sorting flotation machine group I 8 is to be in series by 2 flotation devices, and selected two flotation units 7 are to be in series by 1 flotation device.
Described No. two flotation units 15 form by roughly selecting flotation unit II 16, a selected flotation unit II 17 and selected two flotation unit II 18, an outlet of roughly selecting flotation unit II 16 is the rich chats outlet of tin A10, and another outlet is connected to the import B5 of single-minded flotation unit II 16 for froth pulp outlet C5; The mine tailing outlet of a selected flotation unit II 17 connects roughly selects flotation unit II 16, and froth pulp outlet C6 connects the import B6 of selected two flotation unit II 18; Selected two flotation unit II 18 have two outlets, and the mine tailing outlet connects a selected flotation unit II 17, and froth pulp outlet A11 is the outlet of sulphur concentrate.
The described flotation unit II 16 of roughly selecting is to be in series by 2 flotation devices; A selected flotation unit II 17 is to be in series by 1 flotation device, and selected two flotation unit II 18 are 1 flotation devices.
Embodiment 5: such as Fig. 2, assorted unit equipment falls in the upgrading of a kind of cassiterite polymetallic sulphide ore tin concentrate, by concentrator 2, agitating device 3, a flotation unit 4, No. two flotation units 15, Unit of Milling and Sorting 10 forms, tin rough concentrate 1 enters concentrator 2, concentrator 2 has two outlets, an outlet is overflow water outlet A1, another outlet is thickener underflow outlet A2, thickener underflow outlet A2 connects the import A3 of agitating device 3, the outlet A4 of agitating device 3 connects a flotation unit 4, No. one flotation unit 4 has two outlets, and an outlet is tin concentrate outlet A6; Another outlet connects Unit of Milling and Sorting 10 for froth pulp outlet A7, Unit of Milling and Sorting 10 connects No. two flotation units 15, No. two flotation unit 15 has two outlets, and an outlet is sulphur concentrate outlet A11, and another outlet is the rich chats outlet of tin A10.
Described Unit of Milling and Sorting 10 is comprised of ball mill 13, cyclone 12, material pond 14, mortar pump 11, and the froth pulp outlet A7 of a flotation unit 4 connects material pond 14, and the import of slag stock pump 11 connects material pond 14, and outlet connects cyclone 12; The sand setting outlet of cyclone 12 connects the import of ball mill 13, and the outlet of ball mill 13 connects material pond 14, and the overflow outlet A8 of cyclone 12 connects No. two flotation units 15.
A described flotation unit 4 by roughly select flotation unit I 5, scan a flotation unit 6, scan two flotation units 7, a selected flotation unit I 8, selected two flotation unit I 9 form, the import A5 of flotation unit I 5 is roughly selected in the outlet A4 connection of agitating device 3, roughly select flotation unit I 5 mine tailings outlet connection and scan a flotation unit 6, froth pulp outlet C1 connects the import B3 of a selected flotation unit I 8; Scan a flotation unit 6 mine tailings outlet connection and scan two flotation units 7, the import B1 of flotation unit I 5 is roughly selected in froth pulp outlet C2 connection; An outlet of scanning two flotation units 7 is tin concentrate outlet A6, and another connects the import B2 that scans a flotation unit 6 for froth pulp outlet C3; A selected flotation unit I 8 mine tailings outlet connects roughly selects flotation unit I 5, and froth pulp outlet C4 connects the import B4 of selected two flotation unit I 9; The mine tailing outlet of selected two flotation unit I 9 connects a selected flotation unit I 8, and froth pulp outlet A7 connects material pond 14.
Described agitating device 3 is to be in series by two agitators, and the outlet of first agitator connects the import of second agitator.
The described flotation unit I 5 of roughly selecting is to be in series by 4 flotation devices; Scan a flotation unit 6 and be that to be in series, to scan two flotation devices 7 by 2 flotation devices be to be in series by 3 flotation devices, precision sorting flotation machine group I 8 is to be in series by 2 flotation devices, and selected two flotation units 7 are to be in series by 2 flotation devices.
Described No. two flotation units 15 form by roughly selecting flotation unit II 16, a selected flotation unit II 17 and selected two flotation unit II 18, an outlet of roughly selecting flotation unit II 16 is the rich chats outlet of tin A10, and another outlet is connected to the import B5 of single-minded flotation unit II 16 for froth pulp outlet C5; The mine tailing outlet of a selected flotation unit II 17 connects roughly selects flotation unit II 16, and froth pulp outlet C6 connects the import B6 of selected two flotation unit II 18; Selected two flotation unit II 18 have two outlets, and the mine tailing outlet connects a selected flotation unit II 17, and froth pulp outlet A11 is the outlet of sulphur concentrate.
The described flotation unit II 16 of roughly selecting is to be in series by 3 flotation devices; A selected flotation unit II 17 is to be in series by 2 flotation devices, and selected two flotation unit II 18 are to be in series by 2 flotation devices.
Embodiment 6: such as Fig. 2, assorted unit equipment falls in the upgrading of a kind of cassiterite polymetallic sulphide ore tin concentrate, by concentrator 2, agitating device 3, a flotation unit 4, No. two flotation units 15, Unit of Milling and Sorting 10 forms, tin rough concentrate 1 enters concentrator 2, concentrator 2 has two outlets, an outlet is overflow water outlet A1, another outlet is thickener underflow outlet A2, thickener underflow outlet A2 connects the import A3 of agitating device 3, the outlet A4 of agitating device 3 connects a flotation unit 4, No. one flotation unit 4 has two outlets, and an outlet is tin concentrate outlet A6; Another outlet connects Unit of Milling and Sorting 10 for froth pulp outlet A7, Unit of Milling and Sorting 10 connects No. two flotation units 15, No. two flotation unit 15 has two outlets, and an outlet is sulphur concentrate outlet A11, and another outlet is the rich chats outlet of tin A10.
Described Unit of Milling and Sorting 10 is comprised of ball mill 13, cyclone 12, material pond 14, mortar pump 11, and the froth pulp outlet A7 of a flotation unit 4 connects material pond 14, and the import of slag stock pump 11 connects material pond 14, and outlet connects cyclone 12; The sand setting outlet of cyclone 12 connects the import of ball mill 13, and the outlet of ball mill 13 connects material pond 14, and the overflow outlet A8 of cyclone 12 connects No. two flotation units 15.
A described flotation unit 4 by roughly select flotation unit I 5, scan a flotation unit 6, scan two flotation units 7, a selected flotation unit I 8, selected two flotation unit I 9 form, the import A5 of flotation unit I 5 is roughly selected in the outlet A4 connection of agitating device 3, roughly select flotation unit I 5 mine tailings outlet connection and scan a flotation unit 6, froth pulp outlet C1 connects the import B3 of a selected flotation unit I 8; Scan a flotation unit 6 mine tailings outlet connection and scan two flotation units 7, the import B1 of flotation unit I 5 is roughly selected in froth pulp outlet C2 connection; An outlet of scanning two flotation units 7 is tin concentrate outlet A6, and another connects the import B2 that scans a flotation unit 6 for froth pulp outlet C3; A selected flotation unit I 8 mine tailings outlet connects roughly selects flotation unit I 5, and froth pulp outlet C4 connects the import B4 of selected two flotation unit I 9; The mine tailing outlet of selected two flotation unit I 9 connects a selected flotation unit I 8, and froth pulp outlet A7 connects material pond 14.
Described agitating device 3 is to be in series by two agitators, and the outlet of first agitator connects the import of second agitator.
The described flotation unit I 5 of roughly selecting is to be in series by 3 flotation devices; Scan a flotation unit 6 and be that to be in series, to scan two flotation units 7 by 3 flotation devices be to be in series by 3 flotation devices, precision sorting flotation machine group I 8 is to be in series by 3 flotation devices, and selected two flotation units 7 are to be in series by 2 flotation devices.
Described No. two flotation units 15 form by roughly selecting flotation unit II 16, a selected flotation unit II 17 and selected two flotation unit II 18, an outlet of roughly selecting flotation unit II 16 is the rich chats outlet of tin A10, and another outlet is connected to the import B5 of single-minded flotation unit II 16 for froth pulp outlet C5; The mine tailing outlet of a selected flotation unit II 17 connects roughly selects flotation unit II 16, and froth pulp outlet C6 connects the import B6 of selected two flotation unit II 18; Selected two flotation unit II 18 have two outlets, and the mine tailing outlet connects a selected flotation unit II 17, and froth pulp outlet A11 is the outlet of sulphur concentrate.
The described flotation unit II 16 of roughly selecting is to be in series by 2 flotation devices; A selected flotation unit II 17 is to be in series by 1 flotation device, and selected two flotation unit II 18 are 2 flotation devices.
Embodiment 7: such as Fig. 2, assorted unit equipment falls in the upgrading of a kind of cassiterite polymetallic sulphide ore tin concentrate, by concentrator 2, agitating device 3, a flotation unit 4, No. two flotation units 15, Unit of Milling and Sorting 10 forms, tin rough concentrate 1 enters concentrator 2, concentrator 2 has two outlets, an outlet is overflow water outlet A1, another outlet is thickener underflow outlet A2, thickener underflow outlet A2 connects the import A3 of agitating device 3, the outlet A4 of agitating device 3 connects a flotation unit 4, No. one flotation unit 4 has two outlets, and an outlet is tin concentrate outlet A6; Another outlet connects Unit of Milling and Sorting 10 for froth pulp outlet A7, Unit of Milling and Sorting 10 connects No. two flotation units 15, No. two flotation unit 15 has two outlets, and an outlet is sulphur concentrate outlet A11, and another outlet is the rich chats outlet of tin A10.
Described Unit of Milling and Sorting 10 is comprised of ball mill 13, cyclone 12, material pond 14, mortar pump 11, and the froth pulp outlet A7 of a flotation unit 4 connects material pond 14, and the import of slag stock pump 11 connects material pond 14, and outlet connects cyclone 12; The sand setting outlet of cyclone 12 connects the import of ball mill 13, and the outlet of ball mill 13 connects material pond 14, and the overflow outlet A8 of cyclone 12 connects No. two flotation units 15.
A described flotation unit 4 by roughly select flotation unit I 5, scan a flotation unit 6, scan two flotation units 7, a selected flotation unit I 8, selected two flotation unit I 9 form, the import A5 of flotation unit I 5 is roughly selected in the outlet A4 connection of agitating device 3, roughly select flotation unit I 5 mine tailings outlet connection and scan a flotation unit 6, froth pulp outlet C1 connects the import B3 of a selected flotation unit I 8; Scan a flotation unit 6 mine tailings outlet connection and scan two flotation units 7, the import B1 of flotation unit I 5 is roughly selected in froth pulp outlet C2 connection; An outlet of scanning two flotation units 7 is tin concentrate outlet A6, and another connects the import B2 that scans a flotation unit 6 for froth pulp outlet C3; A selected flotation unit I 8 mine tailings outlet connects roughly selects flotation unit I 5, and froth pulp outlet C4 connects the import B4 of selected two flotation unit I 9; The mine tailing outlet of selected two flotation unit I 9 connects a selected flotation unit I 8, and froth pulp outlet A7 connects material pond 14.
Described agitating device 3 is to be in series by two agitators, and the outlet of first agitator connects the import of second agitator.
The described flotation unit I 5 of roughly selecting is to be in series by 3 flotation devices; Scan a flotation unit 6 and be that to be in series, to scan two flotation units 7 by 2 flotation devices be to be in series by 2 flotation devices, precision sorting flotation machine group I 8 is to be in series by 2 flotation devices, and selected two flotation units 7 are to be in series by 2 flotation devices.
Described No. two flotation units 15 form by roughly selecting flotation unit II 16, a selected flotation unit II 17 and selected two flotation unit II 18, an outlet of roughly selecting flotation unit II 16 is the rich chats outlet of tin A10, and another outlet is connected to the import B5 of single-minded flotation unit II 16 for froth pulp outlet C5; The mine tailing outlet of a selected flotation unit II 17 connects roughly selects flotation unit II 16, and froth pulp outlet C6 connects the import B6 of selected two flotation unit II 18; Selected two flotation unit II 18 have two outlets, and the mine tailing outlet connects a selected flotation unit II 17, and froth pulp outlet A11 is the outlet of sulphur concentrate.
The described flotation unit II 16 of roughly selecting is to be in series by 2 flotation devices; A selected flotation unit II 17 is 1 flotation device, and selected two flotation unit II 18 are 1 flotation devices.
The present invention describes by accompanying drawing, without departing from the present invention, can also carry out various conversion and be equal to replacement patent of the present invention, therefore, patent of the present invention is not limited to disclosed specific implementation process, and should comprise the whole embodiments that fall in the Patent right requirement scope of the present invention.
Claims (11)
1. general labourer's skill falls in cassiterite polymetallic sulphide ore tin concentrate upgrading, it is characterized in that, may further comprise the steps:
The first step: with in the table concentrate band take cassiterite as main, the tin concentrate material of tin grade 40% or more, with in the concentrate band take pyrite and micro fine particle as lead, the mixed material of tin grade 5 ~ 10% intercepts the tin rough concentrate of output tin grade 18 ~ 25% in the lump;
Second step: only be that 1 ~ 5% tin rough concentrate is concentrated to 35 ~ 40% concentration with the concentration of first step output, then enter agitator, add successively sulfuric acid, collecting agent, foaming agent stirring, enter again the impurity desulfurization flotation flowsheet, obtain tin grade more than 40%, sulphur+arsenic content less than 4% tin concentrate product, froth pulp is stanniferous higher sulphur concentrate;
The 3rd step: the sulphur concentrate of second step output enters the grind grading flow process, obtain fineness and be-ore milling product of 0.045mm grain size content 75 ~ 85%, enter the sulphur concentrate again and select the tin flow process, obtain the rich chats of tin of stanniferous 2.5-3%, froth pulp is stanniferous lower sulphur concentrate.
2. general labourer skill falls in a kind of cassiterite polymetallic sulphide ore tin concentrate according to claim 1 upgrading, it is characterized in that, described impurity desulfurization flotation flowsheet by one roughing, scan for twice, twice selected totally five flotation operation form.
3. general labourer skill falls in a kind of cassiterite polymetallic sulphide ore tin concentrate according to claim 1 upgrading, it is characterized in that, described sulphur concentrate select the tin flow process by one roughing, recleaning totally 3 flotation operations form.
4. general labourer's skill falls in a kind of cassiterite polymetallic sulphide ore tin concentrate according to claim 1 upgrading, it is characterized in that, described sulphur concentrate grind grading flow process is comprised of ore grinding and two operations of classification, the sulphur concentrate of second step output carries out first classification, fine fraction enters the sulphur concentrate and selects the tin flow process, and coarse fraction carries out returning graded operation behind the ore grinding.
5. assorted unit equipment falls in cassiterite polymetallic sulphide ore tin concentrate upgrading, it is characterized in that, by concentrator (2), agitating device (3), a flotation unit (4), No. two flotation units (15), Unit of Milling and Sorting (10) forms, concentrator (2) has two outlets, an outlet is overflow water outlet (A1), another outlet is thickener underflow outlet (A2), thickener underflow outlet (A2) connects agitating device (3), agitating device (3) connects a flotation unit (4), a flotation unit (4) has two outlets, and an outlet is tin concentrate outlet (A6); Another outlet connects Unit of Milling and Sorting (10) for froth pulp outlet (A7), Unit of Milling and Sorting (10) connects No. two flotation units (15), No. two flotation units (15) have two outlets, an outlet is sulphur concentrate outlet (A11), and another outlet is the rich chats outlet (A11) of tin.
6. assorted unit equipment falls in a kind of cassiterite polymetallic sulphide ore tin concentrate according to claim 5 upgrading, it is characterized in that, described Unit of Milling and Sorting (10) is comprised of ball mill (13), cyclone (12), material pond (14), slag stock pump (11), the froth pulp outlet (A7) of a flotation unit (4) connects material pond (14), the import of slag stock pump (11) connects material pond (14), and outlet connects cyclone (12); The sand setting outlet of cyclone (12) connects the import of ball mill (13), and the outlet of ball mill (13) connects material pond (14), and the overflow outlet (A8) of cyclone (12) connects No. two flotation units (15).
7. assorted unit equipment falls in a kind of cassiterite polymetallic sulphide ore tin concentrate according to claim 6 upgrading, it is characterized in that: a described flotation unit (4) is by roughly selecting flotation unit I (5), scan a flotation unit (6), scan two flotation units (7), a selected flotation unit I (8), selected two flotation unit I (9) form, agitating device (3) connects roughly selects flotation unit I (5), roughly select flotation unit I (5) mine tailing outlet connection and scan a flotation unit (6), froth pulp outlet (C1) connects the import (B3) of a selected flotation unit I (8); Scan flotation unit (6) mine tailing outlet connection and scan two flotation units (7), froth pulp outlet (C2) connects the import (B1) of roughly selecting flotation unit I (5); An outlet of scanning two flotation units (7) is tin concentrate outlet (A6), and another connects the import (B2) of scanning a flotation unit (6) for froth pulp outlet (C3); Selected flotation unit I (8) mine tailing outlet connects roughly selects flotation unit I (5), and froth pulp outlet (C4) connects the import (B4) of selected two flotation unit I (9); The mine tailing outlet of selected two flotation unit I (9) connects a selected flotation unit I (8), and froth pulp outlet (A7) connects Unit of Milling and Sorting (10).
8. assorted unit equipment falls in the upgrading of the described a kind of cassiterite polymetallic sulphide ore tin concentrate of any one according to claim 5 or in 7, it is characterized in that described agitating device (3) is to be in series by two agitators.
9. assorted unit equipment falls in a kind of cassiterite polymetallic sulphide ore tin concentrate according to claim 6 upgrading, it is characterized in that: the described flotation unit I (5) of roughly selecting is to be in series by 3-4 platform flotation device; Scan a flotation unit (6) and be that to be in series, to scan two flotation units (7) by 2-3 platform flotation device be to be in series by 2-3 platform flotation device, precision sorting flotation machine group I (8) is to be in series by 2-3 platform flotation device, and selected two flotation units (7) are to be in series by 1-2 platform flotation device.
10. assorted unit equipment falls in a kind of cassiterite polymetallic sulphide ore tin concentrate according to claim 5 upgrading, it is characterized in that: described No. two flotation units (15) form by roughly selecting flotation unit II (16), a selected flotation unit II (17) and selected two flotation unit II (18), an outlet of roughly selecting flotation unit II (16) is the rich chats outlet (A10) of tin, and another outlet is connected to the import (B5) of single-minded flotation unit II (16) for froth pulp outlet (C5); The mine tailing outlet of a selected flotation unit II (17) connects roughly selects flotation unit II (16), and froth pulp outlet (C6) connects the import (B6) of selected two flotation unit II (18); Selected two flotation unit II (18) have two outlets, and the mine tailing outlet connects a selected flotation unit II (17), and froth pulp outlet (A11) is the outlet of sulphur concentrate.
11. assorted unit equipment falls in a kind of cassiterite polymetallic sulphide ore tin concentrate according to claim 10 upgrading, it is characterized in that: the described flotation unit II (16) of roughly selecting is to be in series by 2-3 platform flotation device; A selected flotation unit II (17) is to be in series by 1-2 platform flotation device, and selected two flotation unit II (18) are to be in series by 1-2 platform flotation device.
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| CN2012104183464A CN102872970A (en) | 2012-10-29 | 2012-10-29 | Process for improving quality and reducing impurities of tin stone multi-metal sulfide ore tin ore concentrate and combined equipment |
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| CN2012104183464A CN102872970A (en) | 2012-10-29 | 2012-10-29 | Process for improving quality and reducing impurities of tin stone multi-metal sulfide ore tin ore concentrate and combined equipment |
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| CN103252289A (en) * | 2013-03-22 | 2013-08-21 | 滨海金地矿业工程技术(北京)有限公司 | Method for preparing finished coal ash by decarburizing wet-discharged coal ash via double size mixing |
| CN103816989A (en) * | 2014-02-18 | 2014-05-28 | 云南锡业集团有限责任公司研究设计院 | Mineral processing process for removing arsenic and sulfur in tin concentrate |
| CN104226463A (en) * | 2014-07-28 | 2014-12-24 | 蒙自矿冶有限责任公司 | Beneficiation method for high-tin-content multi-metal sulfide ores |
| CN104722392A (en) * | 2015-03-10 | 2015-06-24 | 江西稀有金属钨业控股集团有限公司 | Mineral processing technology of recycling tin metal from high sulphide ore |
| CN105435957A (en) * | 2016-01-12 | 2016-03-30 | 云南华联锌铟股份有限公司 | Mineral separation technology for recovering low-grade marmatite and cassiterite minerals from copper separation tailings |
| CN106868303A (en) * | 2015-12-11 | 2017-06-20 | 北京有色金属研究总院 | A kind of Complicated Copper sulphur ore deposit reclaims the selecting smelting combination handling process of copper |
| CN109290048A (en) * | 2018-09-25 | 2019-02-01 | 内蒙古扎鲁特旗鲁安矿业有限公司 | A kind of beneficiation method sorting rare metal concentrate, zircon concentrate and quartzy feldspar concentrate |
| CN109604071A (en) * | 2018-12-11 | 2019-04-12 | 广东省资源综合利用研究所 | It is a kind of to reduce the stanniferous method for floating of troilite |
| CN110773327A (en) * | 2019-11-14 | 2020-02-11 | 云南锡业研究院有限公司 | Method for flotation recovery of fine cassiterite of oxidized vein tin ore |
| CN111974539A (en) * | 2020-08-24 | 2020-11-24 | 昆明理工大学 | Method for improving quality and reducing impurities of tin concentrate |
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| CN103252289A (en) * | 2013-03-22 | 2013-08-21 | 滨海金地矿业工程技术(北京)有限公司 | Method for preparing finished coal ash by decarburizing wet-discharged coal ash via double size mixing |
| CN103816989A (en) * | 2014-02-18 | 2014-05-28 | 云南锡业集团有限责任公司研究设计院 | Mineral processing process for removing arsenic and sulfur in tin concentrate |
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| CN104226463A (en) * | 2014-07-28 | 2014-12-24 | 蒙自矿冶有限责任公司 | Beneficiation method for high-tin-content multi-metal sulfide ores |
| CN104226463B (en) * | 2014-07-28 | 2016-05-25 | 蒙自矿冶有限责任公司 | A kind of beneficiation method of high tin-polymetallic sulphide ore |
| CN104722392A (en) * | 2015-03-10 | 2015-06-24 | 江西稀有金属钨业控股集团有限公司 | Mineral processing technology of recycling tin metal from high sulphide ore |
| CN106868303A (en) * | 2015-12-11 | 2017-06-20 | 北京有色金属研究总院 | A kind of Complicated Copper sulphur ore deposit reclaims the selecting smelting combination handling process of copper |
| CN105435957A (en) * | 2016-01-12 | 2016-03-30 | 云南华联锌铟股份有限公司 | Mineral separation technology for recovering low-grade marmatite and cassiterite minerals from copper separation tailings |
| CN109290048A (en) * | 2018-09-25 | 2019-02-01 | 内蒙古扎鲁特旗鲁安矿业有限公司 | A kind of beneficiation method sorting rare metal concentrate, zircon concentrate and quartzy feldspar concentrate |
| CN109604071A (en) * | 2018-12-11 | 2019-04-12 | 广东省资源综合利用研究所 | It is a kind of to reduce the stanniferous method for floating of troilite |
| CN110773327A (en) * | 2019-11-14 | 2020-02-11 | 云南锡业研究院有限公司 | Method for flotation recovery of fine cassiterite of oxidized vein tin ore |
| CN111974539A (en) * | 2020-08-24 | 2020-11-24 | 昆明理工大学 | Method for improving quality and reducing impurities of tin concentrate |
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