CN112973951A - Process method for improving precision of desulfurized iron rough concentrate - Google Patents
Process method for improving precision of desulfurized iron rough concentrate Download PDFInfo
- Publication number
- CN112973951A CN112973951A CN201911276657.XA CN201911276657A CN112973951A CN 112973951 A CN112973951 A CN 112973951A CN 201911276657 A CN201911276657 A CN 201911276657A CN 112973951 A CN112973951 A CN 112973951A
- Authority
- CN
- China
- Prior art keywords
- ore
- cyclone
- mixing
- feeding
- stirring barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000012141 concentrate Substances 0.000 title claims abstract description 45
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 34
- 230000008569 process Effects 0.000 title claims abstract description 27
- 238000003756 stirring Methods 0.000 claims abstract description 71
- 238000000227 grinding Methods 0.000 claims abstract description 26
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000006260 foam Substances 0.000 claims abstract description 12
- 239000012991 xanthate Substances 0.000 claims abstract description 12
- 239000004576 sand Substances 0.000 claims abstract description 7
- 230000002000 scavenging effect Effects 0.000 claims abstract description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000011574 phosphorus Substances 0.000 claims abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 6
- 230000003139 buffering effect Effects 0.000 claims abstract description 5
- 238000005188 flotation Methods 0.000 claims description 36
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 12
- 239000011593 sulfur Substances 0.000 claims description 12
- 229910052717 sulfur Inorganic materials 0.000 claims description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 239000003814 drug Substances 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000011946 reduction process Methods 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000011707 mineral Substances 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 7
- 238000006477 desulfuration reaction Methods 0.000 description 7
- 230000023556 desulfurization Effects 0.000 description 7
- 238000000926 separation method Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a process method for improving the precision of desulfurized iron rough concentrate, which comprises the following steps: grinding and feeding ore by adopting two-section closed-loop continuous grinding, grinding the ore by a first-section ball mill, grading by a spiral classifier, returning sand returned by the classifier to the first-section ball mill, feeding overflow of the classifier to a second-section cyclone pump pool, feeding the ore into a cyclone pump for grading, feeding underflow of the cyclone into the second-section ball mill for secondary grinding, feeding ore pulp after grinding the ore into the cyclone pump for grading again, feeding overflow of the cyclone into an ore pulp buffer tank for summarizing and buffering, then feeding the ore pulp into a stirring barrel through a pipeline, fully stirring the ore pulp, xanthate and oil in the stirring barrel, then feeding the ore pulp into a roughing operation, carrying out a third-time fine selection operation on the coarse selection foam, returning the fine selection foam to the previous stage for re-selection, scavenging the underflow of the ore concentrate to be desulfurized iron concentrate, selecting the iron concentrate after a next phosphorus reduction process, and returning the coarse selection if the.
Description
Technical Field
The invention relates to a process method, in particular to a process method for improving the precision of desulfurized iron rough concentrate, and belongs to the technical field of flotation and mineral separation.
Background
The four series flotation machines are arranged on desulfurization process equipment of Meishan mining division, the flotation machines are equipment for directly finishing the flotation process and are mainly used for desulfurization in production, two-section closed-circuit continuous grinding is adopted for feeding ore in grinding, the ore is ground by a first-section ball mill and then is graded by a spiral classifier, return sand returns to the first-section ball mill, overflow is fed into a second-section spiral classifier for grading, the graded return sand is fed into a second-section ball mill for grinding, ore pulp is fed into the second-section spiral classifier for grading after grinding, secondary overflow of the spiral classifier is fed into a flotation process, the flotation process comprises rough separation operation, fine separation operation and scavenging operation, the ore pulp is automatically fed into a stirring barrel and xanthate during ball grinding, and 2, after being fully stirred, the oil enters a roughing operation, the roughing foam is subjected to a third-time concentration operation, the concentrated foam returns to the previous-stage recleaning, the concentrated underflow is sulfur concentrate, and the sulfur concentrate is a raw material for preparing sulfuric acid.
And (4) selecting the scavenging bottom flow as desulfurized iron ore concentrate, selecting the desulfurized iron ore concentrate through the next phosphorus reduction procedure to obtain iron ore concentrate, and returning the coarse selection to continue screening if the index is unqualified.
The flotation machine is equipment for directly completing the flotation process, ground ore pulp is mixed with a flotation reagent and then is sent into the flotation machine for air agitation, so that target minerals (sulfur concentrate) to be floated are attached to bubbles to form mineralized bubbles, the mineralized bubbles float to the surface of the ore pulp and form a mineralized bubble layer, foams are scraped out (or are discharged by self overflow) through a scraping plate to obtain foam products, and non-foam products are discharged from the bottom of the tank, so that the flotation separation process of the minerals is realized, and the quality of the economic index of the flotation technology is closely related to the performance of the used flotation machine.
The fault statistics of the flotation machine shows that the fault directly affects the production of the flotation machine, if the fault is not diagnosed and eliminated in time, the yield of the mineral powder is directly affected, and meanwhile, the production cost is increased. Therefore, the problem of the fault of the flotation machine is solved, and the method has great significance to the whole mineral separation production.
In the prior production, four series of flotation machines are unstable in operation, the sulfur content of the desulfurized iron ore concentrate exceeds the standard, the amount of returned coarse flotation and then continuously screening is larger and larger, the consumption of xanthate and 2# oil is more and more, the desulfurization effect is poor, the environment is polluted, and a process and a method for improving the precision of the desulfurized iron ore concentrate are urgently needed.
The main problems are as follows:
1. overflow of the ball mill is not smooth, which often causes overflow of the grading cyclone and blockage of the pipeline;
2. the mixing tank is pressed to be dead, so that the stable operation of each series is influenced;
3. the flotation separation of minerals is insufficient, foam products are discharged from the bottom of the tank, and the economic index of the flotation technology is low;
4. the desulfurization effect is poor, the dosages of xanthate and 2# oil are too large, the drainage of tailings exceeds the standard, and the environment is polluted, so that a new scheme is urgently needed to solve the technical problems.
Disclosure of Invention
The invention provides a process method for improving the accuracy of desulfurized iron rough concentrate, aiming at the problems in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows, and the process method for improving the accuracy of the desulfurized iron rough concentrate comprises the following steps:
grinding and feeding are carried out by adopting two-section closed-loop continuous grinding, the ground ore is classified by a spiral classifier after being ground by a first-section ball mill, the sand returned by the classifier returns to the first-section ball mill, the overflow of the classifier is fed into a pump pool of a second-section swirler,
the underflow of the cyclone is fed into a two-stage ball mill for secondary grinding,
ore pulp after grinding is fed into a swirler for grading again through a swirler pump, overflow of the swirler is fed into an ore pulp buffer tank for gathering and buffering, then the ore pulp, xanthate and oil are fed into a stirring barrel through a pipeline, the ore pulp, the xanthate and the oil are fully stirred in the stirring barrel and then enter a roughing operation, the roughing operation is carried out again for three times, the refined foam returns to the previous stage for recleaning, the refined underflow is sulfur concentrate, and the sulfur concentrate is a raw material for preparing sulfuric acid;
and (4) selecting the scavenging bottom flow as desulfurized iron ore concentrate, selecting the desulfurized iron ore concentrate through the next phosphorus reduction procedure to obtain iron ore concentrate, and returning the coarse selection to continue screening if the index is unqualified. This scheme increases the baffle-box between swirler and agitator to it is not smooth to solve the ball mill overflow and advances the ore, and hierarchical swirler overflows ore deposit and pipe blockage problem and agitator sometimes press the scheduling problem.
As an improvement of the invention, in the steps, the mill is connected with a spiral classifier, the spiral classifier is connected with a cyclone, the cyclone is connected with the ball mill, the ball mill is connected with a cyclone pump pool, the outlet of the cyclone pump pool is connected with a buffer tank, the outlet of the buffer tank is connected with a stirring barrel, and the outlet of the stirring barrel is connected with a flotation machine.
As an improvement of the invention, the buffer box is provided with a buffer box feeding hole which is respectively connected with four series of cyclone discharge holes, an inner inclined buffer layer is added in the buffer box to reduce the raw ore supply speed and prevent the accumulation of ore materials, and the buffer box discharge hole is connected with the stirring barrel.
As an improvement of the invention, the discharge port of the buffer box is required to be positioned at the position (lower edge of a pipe orifice) above 20cm of the lower bottom of the buffer box, the heights of the stirring barrel and the overflow pipe of the flotation machine are reduced by 0.5-0.6m, the ore accumulation of the stirring barrel is reduced, and the discharge port of the buffer box is connected with a pipeline for use
A wear resistant tube.
As an improvement of the invention, the stirring barrel consists of a stirring barrel internal rotation stirring motor, a stirring barrel external rotation stirring motor, a stirring barrel material box and a stirring barrel discharge port, wherein the stirring barrel internal rotation stirring motor is arranged at the top of the stirring barrel, the stirring barrel external rotation stirring motor is arranged at the side part of the stirring barrel, the stirring barrel external rotation stirring motor realizes left-right rotation stirring, the stirring barrel internal rotation stirring motor realizes middle stirring, and two stirring motors work to form a bidirectional spiral stirring barrel so as to ensure that raw ore and a medicament are fully stirred and reacted.
As an improvement of the invention, the height of the discharge port of the stirring barrel and the overflow pipe of the flotation machine is reduced by 0.5-0.6m, and the ore accumulation of the stirring barrel is reduced.
Compared with the prior art, the invention has the advantages that 1) the ore pulp buffer tank is added between the cyclone and the stirring barrel in the technical scheme, so that four series of raw ores are fully reacted with the reagent through the buffer tank to achieve full desulfurization; 2) the discharge port of the buffer box is required to be positioned at the position (lower edge of the pipe orifice) above 20cm of the bottom of the buffer box; a plurality of inner inclined buffer layers are arranged in the buffer box, so that the raw ore supply speed is reduced; the opening of the stirring barrel is higher than any original opening (lower edge of the pipe orifice); for connecting pipes
A wear resistant tube; 3) in the scheme, a bidirectional spiral stirring barrel which rotates left and right and stirs in the middle is designed, so that raw ore and the medicament are fully stirred and react, the height of a discharge port of the stirring barrel and an overflow pipe of a flotation machine is reduced by 0.5-0.6m, and ore accumulation of the stirring barrel is reduced; 4) the scheme solves the problem that the overflow of four series ball mills is not smooth, the grading cyclone does not overflow ore and the pipeline is not blocked, and the production is stable; 5) the scheme solves the problem that the stirring barrel is often pressed to be dead, each series of stirring barrels operate stably, and the production efficiency is improved; 6) the scheme realizes the full stirring of the raw ore, the xanthate and the foaming oil, reduces the sulfur content of the iron ore concentrate, and improves the technical index of the desulfurized iron rough concentrate.
Drawings
FIG. 1 is an overall process flow diagram of the present invention;
FIG. 2 is a top view of the process apparatus of the present invention;
FIG. 3 is a side view of the process apparatus of the present invention;
FIG. 4 is a schematic view of a buffer tank and a stirring barrel
In the figure: 1. the device comprises a ball mill, 2, a spiral classifier, 3, a cyclone, 4, the ball mill, 5, a cyclone pump pool, 6, a buffer tank, 7, a stirring barrel, 8, a flotation machine, 10, a buffer tank feeding port, 11, an inner inclined buffer layer, 12, a buffer tank discharging port, 13, a stirring barrel inner rotating stirring motor, 14, a stirring barrel outer rotating stirring motor, 15, a stirring barrel material box, 16 and a stirring barrel discharging port.
The specific implementation mode is as follows:
for the purpose of enhancing an understanding of the present invention, the present embodiment will be described in detail below with reference to the accompanying drawings.
Example 1: referring to fig. 1, a process for improving the accuracy of a desulfurized iron rough concentrate, the process comprising the steps of: grinding and feeding are carried out by adopting two-section closed-loop continuous grinding, the ground ore is classified by a spiral classifier after being ground by a first-section ball mill, the sand returned by the classifier returns to the first-section ball mill, the overflow of the classifier is fed into a pump pool of a second-section swirler,
the underflow of the cyclone is fed into a two-stage ball mill for secondary grinding,
ore pulp after grinding is fed into a swirler for grading again through a swirler pump, overflow of the swirler is fed into an ore pulp buffer tank for gathering and buffering, then the ore pulp, xanthate and oil are fed into a stirring barrel through a pipeline, the ore pulp, the xanthate and the oil are fully stirred in the stirring barrel and then enter a roughing operation, the roughing operation is carried out again for three times, the refined foam returns to the previous stage for recleaning, the refined underflow is sulfur concentrate, and the sulfur concentrate is a raw material for preparing sulfuric acid;
and (4) selecting the scavenging bottom flow as desulfurized iron ore concentrate, selecting the desulfurized iron ore concentrate through the next phosphorus reduction procedure to obtain iron ore concentrate, and returning the coarse selection to continue screening if the index is unqualified.
In the steps, the mill 1 is connected with the spiral classifier 2, the spiral classifier 2 is connected with the cyclone 3, the cyclone 3 is connected with the ball mill 4, the ball mill 4 is connected with the cyclone pump pool 5, the outlet of the cyclone pump pool 5 is connected with the buffer tank 6, the outlet of the buffer tank 6 is connected with the stirring barrel 7, and the outlet of the stirring barrel 7 is connected with the flotation machine 8.
The baffle-box has 4 baffle-box feed inlets 10, four series swirler discharge gates are connected respectively to baffle-box feed inlet 10, and the inside oblique buffer layer 11 that increases of baffle-box realizes reducing the former ore supply speed, stops that the mineral aggregate is piled up, and baffle-box discharge gate 12 links to each other with the agitator.
The discharge port 12 of the buffer box needs to be arranged at the position (the lower edge of a pipe opening) of more than 20cm of the bottom of the buffer box, the height of the mixing tank and the overflow pipe of the flotation machine is reduced by 0.5-0.6m, the ore accumulation of the mixing tank is reduced, and the discharge port 12 of the buffer box is connected with a pipeline for use
A wear resistant tube.
The agitator is by agitator internal rotation agitator motor 13, agitator external rotation agitator motor 14, agitator workbin 15, agitator discharge gate 16 is constituteed, agitator internal rotation agitator motor 13 is at the agitator top, agitator external rotation agitator motor 14 is at the agitator lateral part, agitator external rotation agitator motor 14 realizes that the rotatory stirring is controlled, agitator internal rotation agitator motor 13 realizes the middle stirring, two agitator motor work have just formed two-way spiral agitator, make former ore deposit and medicament intensive mixing reaction.
The height of the discharge port 16 of the stirring barrel and the overflow pipe of the flotation machine is reduced by 0.5-0.6m, and the ore accumulation of the stirring barrel is reduced.
The working principle and the process are as follows: referring to fig. 1, increase the ore pulp baffle box between swirler and agitator as shown in fig. 4, the baffle box has 4 baffle box feed inlets 10, baffle box feed inlet 10 connects four series swirler discharge gates respectively, the inside interior oblique buffer layer 11 that increases of baffle box realizes reducing former ore supply speed, stop mineral aggregate and pile up, baffle box discharge gate 12 links to each other with the agitator, baffle box discharge gate 12 need be in the baffle box department more than 20cm (edge under the mouth of pipe) of going to the bottom, reduce agitator and flotation machine overflow pipe height 0.5-0.6m simultaneously, reduce the long-pending ore of agitator, baffle box discharge gate 12 is connected the pipeline and is used
A wear resistant tube.
The agitator is by agitator internal rotation agitator motor 13, agitator external rotation agitator motor 14, agitator workbin 15, agitator discharge gate 16 is constituteed, agitator internal rotation agitator motor 13 is at the agitator top, agitator external rotation agitator motor 14 is at the agitator lateral part, agitator external rotation agitator motor 14 realizes that the rotatory stirring is controlled, agitator internal rotation agitator motor 13 realizes the middle stirring, two agitator motor work have just formed two-way spiral agitator, make former ore deposit and medicament intensive mixing reaction. The height of the discharge port 16 of the stirring barrel and the overflow pipe of the flotation machine is reduced by 0.5-0.6m, and the ore accumulation of the stirring barrel is reduced.
As shown in fig. 1: four series of flotation machines are arranged on desulfurization process equipment, the flotation machines are equipment which directly finishes the flotation process and are mainly used for desulfurization in production, two-section closed-circuit continuous grinding is adopted for feeding ores during grinding, the ores are ground by a first-section ball mill and then are graded by a spiral classifier, sand returned by the classifier returns to the first-section ball mill, the classifier overflows into a second-section swirler pump pool, feeding the ore pulp into a cyclone by a cyclone pump for classification, feeding the underflow of the cyclone into a two-stage ball mill for secondary ore grinding, feeding the ore pulp into the cyclone again for classification by the cyclone pump after ore grinding, feeding the overflow of the cyclone into an ore pulp buffer tank for summary buffering, then feeding the mixture into a stirring barrel through a pipeline, fully stirring the ore pulp, the xanthate and the No. 2 oil in the stirring barrel, then performing rough concentration operation, performing fine concentration operation for three times, returning the fine concentration foam to the previous stage for re-concentration, wherein the fine concentration underflow is sulfur concentrate which is a raw material for preparing sulfuric acid. The scavenging underflow is the desulfurized iron ore concentrate, and the desulfurized iron ore concentrate is separated by the next phosphorus reduction procedure to be the iron ore concentrate.
It should be noted that the above-mentioned embodiments are not intended to limit the scope of the present invention, and all equivalent modifications and substitutions based on the above-mentioned technical solutions are within the scope of the present invention as defined in the claims.
Claims (6)
1. A process method for improving the accuracy of desulfurized iron rough concentrate is characterized by comprising the following steps:
grinding and feeding are carried out by adopting two-section closed-loop continuous grinding, the ground ore is classified by a spiral classifier after being ground by a first-section ball mill, the sand returned by the classifier returns to the first-section ball mill, the overflow of the classifier is fed into a pump pool of a second-section swirler,
the underflow of the cyclone is fed into a two-stage ball mill for secondary grinding,
ore pulp after grinding is fed into a swirler for grading again through a swirler pump, overflow of the swirler is fed into an ore pulp buffer tank for gathering and buffering, then the ore pulp, xanthate and oil are fed into a stirring barrel through a pipeline, the ore pulp, the xanthate and the oil are fully stirred in the stirring barrel and then enter a roughing operation, the roughing operation is carried out again for three times, the refined foam returns to the previous stage for recleaning, the refined underflow is sulfur concentrate, and the sulfur concentrate is a raw material for preparing sulfuric acid;
and (4) selecting the scavenging bottom flow as desulfurized iron ore concentrate, selecting the desulfurized iron ore concentrate through the next phosphorus reduction procedure to obtain iron ore concentrate, and returning the coarse selection to continue screening if the index is unqualified.
2. The process method for improving the accuracy of the desulfurized iron rough concentrate according to claim 1, wherein in the above steps, the mill is connected with a spiral classifier, the spiral classifier is connected with a cyclone, the cyclone is connected with a ball mill, the ball mill is connected with a cyclone pump pool, the outlet of the cyclone pump pool is connected with a buffer tank, the outlet of the buffer tank is connected with a stirring barrel, and the outlet of the stirring barrel is connected with a flotation machine.
3. The process method for improving the accuracy of the desulfurized iron rough concentrate according to claim 2, wherein the buffer tank is provided with 4 buffer tank feeding ports which are respectively connected with four series of cyclone discharging ports, an inner inclined buffer layer is added in the buffer tank, and the buffer tank discharging port is connected with the stirring barrel.
4. The process method for improving the accuracy of the desulfurized iron rough concentrate according to claim 3, wherein the discharge port of the buffer tank is required to be positioned at a position (lower edge of a pipe opening) which is more than 20cm lower than the bottom of the buffer tank, the height of the mixing tank and the overflow pipe of the flotation machine is reduced by 0.5-0.6m, and the discharge port of the buffer tank is connected with a pipeline for use
A wear resistant tube.
5. The process method for improving the accuracy of the desulfurized iron rough concentrate according to claim 3 or 4, wherein the mixing tank is composed of a mixing tank internal rotation mixing motor, a mixing tank external rotation mixing motor, a mixing tank material box and a mixing tank discharge port, the mixing tank internal rotation mixing motor is arranged at the top of the mixing tank, the mixing tank external rotation mixing motor is arranged at the side part of the mixing tank, the mixing tank external rotation mixing motor realizes left-right rotation mixing, the mixing tank internal rotation mixing motor realizes middle mixing, and two mixing motors work to form a bidirectional spiral mixing tank so as to fully mix and react the raw ore and the medicament.
6. The process for improving the accuracy of the desulfurized iron rough concentrate according to claim 5, wherein the height between the discharge port 16 of the mixing tank and the overflow pipe of the flotation machine is reduced by 0.5 to 0.6 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911276657.XA CN112973951B (en) | 2019-12-13 | 2019-12-13 | Technological method for improving precision of desulfurized iron rough concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911276657.XA CN112973951B (en) | 2019-12-13 | 2019-12-13 | Technological method for improving precision of desulfurized iron rough concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112973951A true CN112973951A (en) | 2021-06-18 |
| CN112973951B CN112973951B (en) | 2024-05-17 |
Family
ID=76331866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911276657.XA Active CN112973951B (en) | 2019-12-13 | 2019-12-13 | Technological method for improving precision of desulfurized iron rough concentrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112973951B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070295668A1 (en) * | 2006-06-19 | 2007-12-27 | Daniel Urizar | Procedure and apparatus for the concentration of hydrophilic materials through flotation devices |
| CN101549322A (en) * | 2009-05-13 | 2009-10-07 | 昆明理工大学 | Process of using sulphur lead-zinc containing tailings to prepare sulphur iron ore concentrate |
| CN101733190A (en) * | 2008-11-25 | 2010-06-16 | 宝钢集团上海梅山有限公司 | Benefication method for sulphur-containing composite iron tailing |
| CN102327816A (en) * | 2011-09-30 | 2012-01-25 | 昆明川金诺化工股份有限公司 | Method by utilizing sulfuric-acid residue to produce iron concentrates |
| CN105498981A (en) * | 2016-02-23 | 2016-04-20 | 中国矿业大学 | High-carbon fly ash flotation decarbonization process with foam stabilization characteristic |
| CN110201790A (en) * | 2019-06-21 | 2019-09-06 | 中国矿业大学 | A kind of the sorting recovery system and sorting recovery process of width grade coal slime |
-
2019
- 2019-12-13 CN CN201911276657.XA patent/CN112973951B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070295668A1 (en) * | 2006-06-19 | 2007-12-27 | Daniel Urizar | Procedure and apparatus for the concentration of hydrophilic materials through flotation devices |
| CN101733190A (en) * | 2008-11-25 | 2010-06-16 | 宝钢集团上海梅山有限公司 | Benefication method for sulphur-containing composite iron tailing |
| CN101549322A (en) * | 2009-05-13 | 2009-10-07 | 昆明理工大学 | Process of using sulphur lead-zinc containing tailings to prepare sulphur iron ore concentrate |
| CN102327816A (en) * | 2011-09-30 | 2012-01-25 | 昆明川金诺化工股份有限公司 | Method by utilizing sulfuric-acid residue to produce iron concentrates |
| CN105498981A (en) * | 2016-02-23 | 2016-04-20 | 中国矿业大学 | High-carbon fly ash flotation decarbonization process with foam stabilization characteristic |
| CN110201790A (en) * | 2019-06-21 | 2019-09-06 | 中国矿业大学 | A kind of the sorting recovery system and sorting recovery process of width grade coal slime |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112973951B (en) | 2024-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101511488B (en) | Equipment and method for flotating and classifying mineral slurry. | |
| CN102240610B (en) | Self-gas supply mixed fly ash multistage flotation separation system | |
| CN202845172U (en) | Novel three-groove air agitation flotation machine | |
| CN103934117A (en) | Technology for flotation of lead and zinc sulfide ores through inflatable floatation columns | |
| CN112452552B (en) | Coarse-grained mineral dissociation device and method integrating tailing discarding and dissociation | |
| CN110882851B (en) | Beneficiation system and beneficiation method for sulfide ore | |
| CN102228866A (en) | Compound classification method and equipment for ground ore product | |
| CN111604161B (en) | Tailing comprehensive utilization production line and method | |
| CN102784723A (en) | Magnetite flotation column cationic reverse flotation-graded regrinding combined concentration process | |
| CN112973951A (en) | Process method for improving precision of desulfurized iron rough concentrate | |
| CN1150062C (en) | Tower type grinding flotation machine capable of carrying out grinding while flotation separation | |
| CN106669957A (en) | Flotation technology for fine-grain middling coal | |
| CN107716131B (en) | Grind grading and flotation carbon removal system | |
| CN202173998U (en) | Combined fly ash floatation separation system with self-air supply | |
| CN114029128A (en) | Graphite ore crushing, grinding and flotation integrated equipment and method | |
| CN209715269U (en) | A kind of grind grading unit equipment | |
| CN208244966U (en) | It is a kind of to grind floating integrated apparatus | |
| CN106179785A (en) | The fall cyclone bar shaped unit integrated technologies such as overflow fineness appreciation one one liter of nothing of fall | |
| CN102284375B (en) | Pulverized fuel ash flotation separation equipment with physical separation device | |
| CN205361673U (en) | Mineral flotation unit | |
| CN102319638B (en) | Turbulent mixed pulverized fuel ash multi-stage floatation separation system | |
| CN102284374B (en) | External-internal type pulverized fuel ash multilevel flotation separation system | |
| US3012669A (en) | Flotation method and apparatus | |
| Kohmuench et al. | Column and nonconventional flotation for coal recovery: Circuitry, methods, and considerations | |
| CN216023638U (en) | Flotation tailing concentrates processing system in grades |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |