CN112892847B - Beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite dyeing type iron ore - Google Patents
Beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite dyeing type iron ore Download PDFInfo
- Publication number
- CN112892847B CN112892847B CN202011543257.3A CN202011543257A CN112892847B CN 112892847 B CN112892847 B CN 112892847B CN 202011543257 A CN202011543257 A CN 202011543257A CN 112892847 B CN112892847 B CN 112892847B
- Authority
- CN
- China
- Prior art keywords
- additive
- control module
- central control
- ore
- addition amount
- 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.)
- Active
Links
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
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite-impregnated iron ore, which comprises the following steps: s1 ore grinding-magnetic separation: performing multi-section grinding and magnetic separation on the raw ore to improve the ore grade; s2 fine grinding, namely, fine grinding the magnetic concentrate obtained in the S1 by adopting a wet vertical mill, wherein the fine ground product is used for reverse flotation; s3 reverse flotation, namely, mixing the fine ground product, and obtaining reverse flotation concentrate at the bottom of the tank by adopting a reverse flotation process of primary and secondary sweeping; s4, concentrating and dehydrating the reverse flotation concentrate in a concentration box, and obtaining high-quality iron concentrate from the bottom flow of the concentration box. The method determines the iron content of the dip-dyed iron ore and the pH value of the raw ore through intelligent detection, intelligently adjusts the adding amount of the flotation agent, and intelligently adjusts the adding amount of water according to the size of the fine grinding particles and the concentration of the primary slurry, so that the reverse flotation process has pertinence, and the content of impurities in the finally obtained iron ore concentrate is reduced.
Description
Technical Field
The invention relates to the technical field of ore dressing, in particular to a beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite dip-dyed iron ore.
Background
The impurity content of the iron ore is always a difficult problem which troubles the ore dressing of the iron ore, wherein the ore dressing of the dip-dyed iron ore is particularly difficult, the lattice multiple grinding and magnetic separation can not reach the better grade standard in the production, and the economic benefit is greatly reduced. Particularly, in the cassiterite dip-dyed iron ore, the content of tin in the iron ore concentrate exceeds the standard, and the recycling of tin resources is necessary while high-purity iron ore concentrate is obtained. However, the current mineral separation process flow of the dip-dyed iron ore is too single, so that the obtained iron ore concentrate has high impurity content.
Disclosure of Invention
Therefore, the invention provides a beneficiation process for preparing high-purity iron ore concentrate by reducing impurities of cassiterite-impregnated iron ore, which is used for solving the problem of high impurity content of the obtained iron ore concentrate caused by too single beneficiation process flow of the impregnated iron ore in the prior art.
In order to achieve the aim, the invention provides a beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite-impregnated iron ore, which comprises the following steps:
s1, grinding and magnetic separation: carrying out I-section grinding and I-section magnetic separation on raw ores, carrying out II-section grinding and II-section magnetic separation on I-section magnetic concentrates, and carrying out III-section magnetic separation on II-section magnetic concentrates to obtain magnetic concentrates; I. carrying out magnetic scavenging on the magnetic tailings in the sections II and III, losing the magnetic scavenged tailings to the tail, and returning the magnetic scavenged concentrate to the section II for ore grinding;
s2, fine grinding: performing fine grinding on the magnetic concentrate obtained in the step 1 by adopting a wet vertical mill, and using a fine ground product for reverse flotation;
s3, reverse flotation, namely, mixing the fine ground product, and obtaining reverse flotation concentrate at the bottom of the tank by adopting a primary and secondary coarse flotation process;
s4, concentrating and dehydrating the reverse flotation concentrate in a concentration tank, and obtaining high-quality iron concentrate from the bottom flow of the concentration tank;
when the ore dressing process is adopted to carry out ore dressing on the dip-dyed iron ore, a central control module is arranged and used for adjusting the working state of each part in the process of the ore dressing process;
in the step S1, a reagent needs to be added to the raw ore, and the central control module is provided with an additive addition quantity base matrix F0, a raw ore iron content parameter matrix G0, a raw ore iron content to first additive addition quantity base compensation parameter matrix H0, a raw ore PH value matrix Q0, and a raw ore PH value to first additive addition quantity base compensation parameter matrix P0;
for each additive addition base matrix F0, F0(X, Y, Z, W), wherein X is the first additive addition base, Y is the second additive addition base, Z is the third additive addition base, and W is the fourth additive addition base;
when a medicament needs to be added into the raw ore, detecting the iron content G in the raw ore and transmitting the detection result to a central control module, wherein the central control module compares the G with internal parameters of G0, and carries out primary adjustment on the base number of the addition amount of the first additive according to the comparison result;
when the adjustment of the iron content of the raw ore on the addition quantity base number of the first additive is finished, detecting the pH value Q of the raw ore and transmitting the detection result to the central control module, comparing the Q with the internal parameters of Q0 by the central control module, and secondarily adjusting the addition quantity base number of the first additive by the central control module according to the comparison result;
in the step S3, adding water into the fine grinding product for size mixing, wherein a fine grinding product particle fineness matrix A0, a fine grinding product size mixing and water adding base number B, a fine grinding product particle water adding base number adjusting parameter matrix C0, a slurry concentration parameter matrix D0 and a slurry concentration water adding amount compensation adding amount adjusting parameter matrix E0 are arranged in the central control module;
when the fine grinding product is subjected to size mixing, detecting the particle fineness A of the fine grinding product and transmitting the detection result to a central control module, wherein the central control module compares the A with the internal parameters of an A0 matrix so as to adjust the size mixing and water adding base number of the fine grinding product;
the central control module calculates the pulp mixing water adding amount according to the adjusted water adding base number, after the calculated water adding amount is added to the fine grinding product, the fine grinding product is stirred to generate primary pulp, the primary pulp concentration D is detected, the detection result is transmitted to the central control module, the central control module compares the D with the internal parameters of the matrix D0, and the central control module calculates the water adding amount according to the primary pulp concentration to compensate the adding value.
Further, for raw ore iron content parameter matrixes G0, G0(G1, G2, G3, G4), wherein G1 is a first preset raw ore iron content parameter, G2 is a second preset raw ore iron content parameter, G3 is a third preset raw ore iron content parameter, and G4 is a fourth preset raw ore iron content parameter, each of the iron content parameters is sequentially increased;
for a primary ore iron content versus first additive addition quantity base compensation parameter matrix H0, H0(H1, H2, H3, H4), wherein H1 is a first preset primary ore iron content versus first additive addition quantity base compensation parameter, H2 is a second preset primary ore iron content versus first additive addition quantity base compensation parameter, H3 is a third preset primary ore iron content versus first additive addition quantity base compensation parameter, H4 is a fourth preset primary ore iron content versus first additive addition quantity base compensation parameter, and all the parameters are sequentially reduced;
when a medicament needs to be added into raw ore, the iron content G in the raw ore is detected and the detection result is transmitted to the central control module, and the central control module compares the G with internal parameters of G0:
when G is less than or equal to G1, the central control module selects H1 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is more than G1 and less than or equal to G2, the central control module selects H2 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is more than G2 and less than or equal to G3, the central control module selects H3 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is more than G3 and less than or equal to G4, the central control module selects H4 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is larger than G4, the central control module judges that the iron content of the raw ore is qualified;
when Hk is selected as a compensation parameter of the iron content of the raw ore to the base number of the first additive addition amount, k =1,2,3 and 4, and the central control module adjusts the base number of the first additive addition amount to X ', X' = XX (G4-G) xhk.
Further, for a raw ore PH matrix Q0, Q0(Q1, Q2, Q3, Q4), where Q1 is a first preset raw ore PH, Q2 is a second preset raw ore PH, Q3 is a third preset raw ore PH, and Q4 is a fourth preset raw ore PH, each of said PH values sequentially increasing;
for a raw ore pH value versus first additive addition quantity base compensation parameter matrix P0, P0 (P1, P2, P3, P4), wherein P1 is a first preset raw ore pH value versus first additive addition quantity base compensation parameter, P2 is a second preset raw ore pH value versus first additive addition quantity base compensation parameter, P3 is a third preset raw ore pH value versus first additive addition quantity base compensation parameter, and P4 is a fourth preset raw ore pH value versus first additive addition quantity base compensation parameter, wherein compensation parameter values are sequentially reduced;
when the adjustment of the iron content of the raw ore on the basis number of the added first additive is finished, detecting the pH value Q of the raw ore and transmitting the detection result to a central control module, wherein the central control module compares the Q with internal parameters of Q0:
when Q is less than or equal to Q1, the central control module selects P1 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q1 and less than or equal to Q2, the central control module selects P2 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q2 and less than or equal to Q3, the central control module selects P3 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q3 and less than or equal to Q4, the central control module selects P4 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q4, the central control module does not adjust the base number of the addition amount of the first additive according to the pH value of the raw ore;
when Pq is selected as a compensation parameter of the pH value of the raw ore to the base number of the added amount of the first additive, Q =1,2,3 and 4, and the central control module compensates the base number of the added amount of the first additive to X ', X ' = X ' × (Q4-Q) xPq.
Further, when a medicament needs to be added into the raw ore, detecting the quality R of the raw ore, and determining the addition amount of each additive by the central control module according to the quality R of the raw ore and the addition amount base number of each additive;
the adding amount of the first additive is as follows: s1= X "× R;
the adding amount of the second additive is as follows: s2= Y × R;
third additive addition amount: s3= Z × R;
fourth additive addition amount: s4= W × R.
Further, a first additive with the addition amount of S1, a second additive with the addition amount of S2, a third additive with the addition amount of S3 and a fourth additive with the addition amount of S4 are sequentially added during rough concentration; during the scavenging, the fourth additive is added again in the amount of S4/2.
Further, for the fine ground product particle fineness matrix a0, a0(a1, a2, A3, a4), wherein a1 is a first predetermined particle fineness, a2 is a second predetermined particle fineness, A3 is a third predetermined particle fineness, a4 is a fourth predetermined particle fineness, each of the fineness values increasing in order;
for the fine grinding product particle pair water adding base number adjusting parameter matrixes C0 and C0(C1, C2 and C3), wherein C1 is a first preset fine grinding product particle pair water adding base number adjusting parameter, C2 is a second preset fine grinding product particle pair water adding base number adjusting parameter, C3 is a third preset fine grinding product particle pair water adding base number adjusting parameter, and all the adjusting parameters are sequentially increased;
when the fine grinding product is subjected to size mixing, the particle fineness A of the fine grinding product is detected and the detection result is transmitted to the central control module, and the central control module compares the A with the internal parameters of the A0 matrix to adjust the size mixing and water adding base number of the fine grinding product:
when A is less than or equal to A1, the central control module judges that the fineness of the fine ground product is qualified, and the central control module does not adjust the base number of slurry mixing and water adding of the fine ground product;
when A is more than A1 and less than or equal to A2, the central control module judges that the fineness of the fine grinding product particles is unqualified, and selects C1 from the matrix C0 as a water adding base number adjusting parameter of the fine grinding product particles;
when A is more than A2 and less than or equal to A3, the central control module judges that the fineness of the fine grinding product particles is unqualified, and selects C2 from the matrix C0 as a water adding base number adjusting parameter of the fine grinding product particles;
when A is more than A3 and less than or equal to A4, the central control module judges that the fineness of the fine grinding product particles is unqualified, and selects C3 from the matrix C0 as a water adding base number adjusting parameter of the fine grinding product particles;
when A is larger than A4, the central control module judges that the particle fineness of the finely ground product is serious, and the finely ground product is put into the wet vertical mill again for fine grinding;
when Ci is selected as a parameter for adjusting the base number of water addition of the fine grinding product particle pair, the central control module adjusts the base number of water addition for size mixing of the fine grinding product to be B ', B' = B multiplied by Ci.
Further, when the finely ground product is added with water and is subjected to size mixing, the quality M of the finely ground product to be mixed with the water is detected, the water adding amount V is calculated by the central control module according to the quality M and the water adding base number B ', and V = M × B', and the finely ground product is stirred after the water is added to generate the initial size.
Further, for the slurry concentration parameter matrixes D0, D0(D1, D2, D3, D4), wherein D1 is a first preset slurry concentration parameter, D2 is a second preset slurry concentration parameter, D3 is a third preset slurry concentration parameter, and D4 is a fourth preset slurry concentration parameter, the concentration parameters are sequentially increased;
for the slurry concentration-to-water addition amount compensation addition amount adjustment parameter matrixes E0 and E0 (E1, E2, E3 and E4), wherein E1 is a first preset slurry concentration-to-water addition amount compensation addition amount adjustment parameter, E2 is a second preset slurry concentration-to-water addition amount compensation addition amount adjustment parameter, E3 is a third preset slurry concentration-to-water addition amount compensation addition amount adjustment parameter, and E4 is a fourth preset slurry concentration-to-water addition amount compensation addition amount adjustment parameter;
when the primary pulp adjustment is completed, the primary pulp concentration D is detected and the detection result is transmitted to the central control module, and the central control module compares the D with the internal parameters of the matrix D0:
when D is less than or equal to D1, the central control module judges that the concentration of the primary slurry is qualified, and the primary slurry is not adjusted by adding water;
when D is more than D1 and less than or equal to D2, the central control module judges that the initial slurry concentration is out of tolerance, and selects E1 from a matrix E0 as a slurry concentration to water addition amount compensation addition amount adjusting parameter;
when D is more than D2 and less than or equal to D3, the central control module judges that the initial slurry concentration is out of tolerance, and selects E2 from a matrix E0 as a slurry concentration to water addition amount compensation addition amount adjusting parameter;
when D is more than D3 and less than or equal to D4, the central control module judges that the initial slurry concentration is out of tolerance, and selects E3 from a matrix E0 as a slurry concentration to water addition amount compensation addition amount adjusting parameter;
when D is larger than D4, the central control module judges that the concentration of the primary slurry is out of tolerance, and selects E4 from the matrix E0 as a parameter for adjusting the compensation addition amount of the slurry concentration to the water addition amount;
when Ej is selected as a slurry concentration to water addition amount compensation addition amount adjusting parameter, j =1,2,3,4, and the central control module calculates the water addition amount compensation addition amount V ', V' = V multiplied by Ej;
when water addition quantity needs to be compensated and added, adding water with the quantity of V 'into the primary pulp, stirring the primary pulp after the water addition is finished, detecting the concentration D' of the pulp after the water addition is finished, comparing the D 'with the internal parameters of the matrix D0 by the central control module, and judging that the concentration of the primary pulp is qualified by the central control module when the D' is not more than D1; when D '> D1, the above procedure was repeated until D' ≦ D1.
Further, the first additive is sodium hydroxide, the second additive is calcium chloride, the third additive is starch, and the fourth additive is HG-3;
the HG-3 is a micro-fine particle gangue flotation efficient combined collecting agent which is prepared by mixing modified fatty acid and butyl xanthate according to the proportion of 3:1, and the HG-3 comprises the following minerals except iron ore: cassiterite, quartz, carbonate, silicate and sulphide ore have better collecting effect, wherein the flotation effect on the micro-fine cassiterite is better.
Compared with the prior art, the method has the advantages that the iron content of the dip-dyed iron ore and the pH value of the raw ore are determined through intelligent detection, the adding amount of the flotation agent is intelligently adjusted, the adding amount of water is intelligently adjusted according to the size of the fine grinding particles and the concentration of the primary pulp, the reverse flotation process is pointed, and therefore the content of impurities in the finally obtained iron ore concentrate is reduced.
Further, when a medicament needs to be added into the raw ore, detecting the iron content G in the raw ore and transmitting the detection result to the central control module, comparing the G with the internal parameters of G0 by the central control module, and adjusting the adding amount base number of the first additive by the central control module according to the comparison result; the reverse flotation process has pertinence, and the content of impurities in the finally obtained iron ore concentrate is further reduced.
When the adjustment of the iron content of the raw ore on the addition quantity base number of the first additive is finished, detecting the pH value Q of the raw ore and transmitting the detection result to the central control module, comparing the Q with the internal parameters of Q0 by the central control module, and secondarily adjusting the addition quantity base number of the first additive by the central control module according to the comparison result; the reverse flotation process has pertinence, and the content of impurities in the finally obtained iron ore concentrate is further reduced.
In the step S3, adding water into the fine grinding product for size mixing, wherein a fine grinding product particle fineness matrix A0, a fine grinding product size mixing and water adding base number B, a fine grinding product particle water adding base number adjusting parameter matrix C0, a slurry concentration parameter matrix D0 and a slurry concentration water adding amount compensation adding amount adjusting parameter matrix E0 are arranged in the central control module; when the finely ground product is subjected to size mixing, detecting the particle fineness A of the finely ground product and transmitting the detection result to a central control module, wherein the central control module compares the A with the internal parameters of an A0 matrix so as to adjust the size mixing and water adding base number of the finely ground product; the reverse flotation process has pertinence, and the content of impurities in the finally obtained iron ore concentrate is further reduced.
The central control module calculates the water adding amount of the pulp mixing according to the adjusted water adding base number, when the calculated water adding amount is added to the fine grinding product, the fine grinding product is stirred to generate initial pulp, the initial pulp concentration D is detected, the detection result is transmitted to the central control module, the central control module compares the D with the internal parameters of the matrix D0, and the central control module calculates the water adding amount according to the initial pulp concentration to compensate the adding value; the reverse flotation process has pertinence, and the content of impurities in the finally obtained iron ore concentrate is further reduced.
Further, the HG-3 is a high-efficiency combined collector for micro-fine gangue flotation, which is prepared from modified fatty acid and butyl xanthate according to the proportion of 3:1, and the HG-3 comprises the following minerals except iron ore: cassiterite, quartz, carbonate, silicate and sulfide ore have good collecting effect, wherein the flotation effect on the micro-fine cassiterite is better, and the cassiterite recovery amount is increased by a special flotation agent.
Drawings
FIG. 1 is a schematic structural diagram of a beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite-dyed iron ores, which is disclosed by the invention;
fig. 2 is a schematic flow diagram of the beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in the cassiterite-dyed iron ore.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a schematic structural diagram of a beneficiation process for producing high-purity iron ore concentrate by impurity reduction of cassiterite-impregnated iron ore according to the present invention is shown, and the beneficiation process for producing high-purity iron ore concentrate by impurity reduction of cassiterite-impregnated iron ore according to the present invention includes: the system comprises a grinding-magnetic separator 1, a first additive bin 2, a second additive bin 3, a third additive bin 4, a fourth additive bin 5, an additive transfer bin 6, a wet vertical mill 7, a particle fineness detector 8, a water bin 9, a size mixing bin 10, a flotation bin 11, a concentration box 12 and a central control module (not shown in the figure), wherein the grinding-magnetic separator 1 is used for grinding-magnetic separation of raw ores and is provided with a raw ore feeding port; the first additive bin 2 is used for storing a first additive; the second additive storage bin 3 is used for storing a second additive; the third additive storage bin 4 is used for storing a third additive; the fourth additive storage bin 5 is used for storing a fourth additive; the additive transfer bin 6 is respectively connected with each additive bin and the ore grinding-magnetic separator 1 and is used as transfer equipment for transferring the additives to the ore grinding-magnetic separator; the wet type vertical mill 7 is connected with the ore grinding-magnetic separator 1 and is used for finely grinding the ore subjected to ore grinding-magnetic separation; the particle fineness detector 8 is connected with the wet type vertical mill 7 and is used for detecting the particle fineness of a fine-ground product; the pulp mixing bin 10 is connected with the wet vertical mill 7 and is used as fine ground product pulp mixing equipment with particle fineness; the water bin 9 is connected with the size mixing bin 10 and is used for injecting water into the size mixing bin 10; the flotation bin 11 is connected with the size mixing bin 10 to perform reverse flotation on ore pulp; the concentration tank 12 is connected with the flotation bin 11 and is used for concentrating and dehydrating the reverse flotation concentrate in the concentration tank to obtain high-quality iron concentrate from the bottom flow of the concentration tank; the central control module is respectively connected with other parts and used for adjusting the working states of the parts in the mineral processing process.
Referring to fig. 2, a schematic flow chart of the beneficiation process for preparing high-purity iron ore concentrate by impurity reduction of cassiterite-impregnated iron ore according to the present invention is shown, and the beneficiation process for preparing high-purity iron ore concentrate by impurity reduction of cassiterite-impregnated iron ore according to the present invention includes:
s1, grinding and magnetic separation: carrying out I-section grinding and I-section magnetic separation on raw ores, carrying out II-section grinding and II-section magnetic separation on I-section magnetic concentrates, and carrying out III-section magnetic separation on II-section magnetic concentrates to obtain magnetic concentrates; I. magnetic scavenging is carried out on the magnetic tailings in the sections II and III, the magnetic scavenged tailings are discharged, and magnetic scavenged concentrate returns to the section II for ore grinding;
s2, fine grinding: performing fine grinding on the magnetic concentrate obtained in the step 1 by adopting a wet vertical mill, and using a fine ground product for reverse flotation;
s3, reverse flotation, namely, mixing the fine ground product, and obtaining reverse flotation concentrate at the bottom of the tank by adopting a reverse flotation process of primary and secondary coarse sweeping;
s4, concentrating and dehydrating the reverse flotation concentrate in a concentration tank, and obtaining high-quality iron concentrate from the bottom flow of the concentration tank;
when the ore dressing process is adopted to carry out ore dressing on the dip-dyed iron ore, a central control module is arranged and used for adjusting the working state of each part in the process of the ore dressing process;
in the step S1, a reagent needs to be added to the raw ore, and the central control module is provided with an additive addition quantity base number matrix F0, a raw ore iron content parameter matrix G0, a raw ore iron content to first additive addition quantity base number compensation parameter matrix H0, a raw ore PH value matrix Q0, and a raw ore PH value to first additive addition quantity base number compensation parameter matrix P0;
for each additive addition base matrix F0, F0(X, Y, Z, W), wherein X is the first additive addition base, Y is the second additive addition base, Z is the third additive addition base, and W is the fourth additive addition base;
when a medicament needs to be added into the raw ore, detecting the iron content G in the raw ore and transmitting the detection result to a central control module, wherein the central control module compares the G with internal parameters of G0, and carries out primary adjustment on the base number of the addition amount of the first additive according to the comparison result;
when the adjustment of the iron content of the raw ore on the addition quantity base number of the first additive is finished, detecting the pH value Q of the raw ore and transmitting the detection result to the central control module, comparing the Q with the internal parameters of Q0 by the central control module, and secondarily adjusting the addition quantity base number of the first additive by the central control module according to the comparison result;
in the step S3, adding water into the fine grinding product for size mixing, wherein a fine grinding product particle fineness matrix A0, a fine grinding product size mixing and water adding base number B, a fine grinding product particle water adding base number adjusting parameter matrix C0, a slurry concentration parameter matrix D0 and a slurry concentration water adding amount compensation adding amount adjusting parameter matrix E0 are arranged in the central control module;
when the fine grinding product is subjected to size mixing, detecting the particle fineness A of the fine grinding product and transmitting the detection result to a central control module, wherein the central control module compares the A with the internal parameters of an A0 matrix so as to adjust the size mixing and water adding base number of the fine grinding product;
the central control module calculates the pulp mixing water adding amount according to the adjusted water adding base number, after the calculated water adding amount is added to the fine grinding product, the fine grinding product is stirred to generate primary pulp, the primary pulp concentration D is detected, the detection result is transmitted to the central control module, the central control module compares the D with the internal parameters of the matrix D0, and the central control module calculates the water adding amount according to the primary pulp concentration to compensate the adding value.
Specifically, for a raw ore iron content parameter matrix G0, G0(G1, G2, G3, G4), wherein G1 is a first preset raw ore iron content parameter, G2 is a second preset raw ore iron content parameter, G3 is a third preset raw ore iron content parameter, and G4 is a fourth preset raw ore iron content parameter, each of the iron content parameters sequentially increases;
for a primary ore iron content versus first additive addition quantity base compensation parameter matrix H0, H0(H1, H2, H3, H4), wherein H1 is a first preset primary ore iron content versus first additive addition quantity base compensation parameter, H2 is a second preset primary ore iron content versus first additive addition quantity base compensation parameter, H3 is a third preset primary ore iron content versus first additive addition quantity base compensation parameter, H4 is a fourth preset primary ore iron content versus first additive addition quantity base compensation parameter, and all the parameters are sequentially reduced;
when a medicament needs to be added into raw ore, the iron content G in the raw ore is detected and the detection result is transmitted to the central control module, and the central control module compares the G with internal parameters of G0:
when G is less than or equal to G1, the central control module selects H1 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is more than G1 and less than or equal to G2, the central control module selects H2 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is more than G2 and less than or equal to G3, the central control module selects H3 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is more than G3 and less than or equal to G4, the central control module selects H4 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is larger than G4, the central control module judges that the iron content of the raw ore is qualified;
when Hk is selected as a compensation parameter of the iron content of the raw ore to the adding amount base number of the first additive, k =1,2,3,4, and the central control module adjusts the adding amount base number of the first additive to be X ', X' = XX (G4-G) xHk.
Specifically, for a raw ore PH matrix Q0, Q0(Q1, Q2, Q3, Q4), where Q1 is a first preset raw ore PH, Q2 is a second preset raw ore PH, Q3 is a third preset raw ore PH, and Q4 is a fourth preset raw ore PH, each of the PH values sequentially increasing;
for a raw ore pH value versus first additive addition quantity base compensation parameter matrix P0, P0 (P1, P2, P3, P4), wherein P1 is a first preset raw ore pH value versus first additive addition quantity base compensation parameter, P2 is a second preset raw ore pH value versus first additive addition quantity base compensation parameter, P3 is a third preset raw ore pH value versus first additive addition quantity base compensation parameter, and P4 is a fourth preset raw ore pH value versus first additive addition quantity base compensation parameter, wherein compensation parameter values are sequentially reduced;
when the adjustment of the iron content of the raw ore on the basis number of the added first additive is finished, detecting the pH value Q of the raw ore and transmitting the detection result to a central control module, wherein the central control module compares the Q with internal parameters of Q0:
when Q is not more than Q1, the central control module selects P1 from the P0 matrix as a base number compensation parameter of the pH value of the raw ore to the addition amount of the first additive;
when Q is more than Q1 and less than or equal to Q2, the central control module selects P2 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q2 and less than or equal to Q3, the central control module selects P3 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q3 and less than or equal to Q4, the central control module selects P4 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q4, the central control module does not adjust the base number of the addition amount of the first additive according to the pH value of the raw ore;
when Pq is selected as a compensation parameter of the pH value of the raw ore to the base number of the added amount of the first additive, Q =1,2,3 and 4, and the central control module compensates the base number of the added amount of the first additive to X ', X ' = X ' × (Q4-Q) xPq.
Specifically, when a medicament needs to be added into raw ore, the quality R of the raw ore is detected, and the central control module determines the addition amount of each additive according to the quality R of the raw ore and the base number of the addition amount of each additive;
the adding amount of the first additive is as follows: s1= X "× R;
the adding amount of the second additive is as follows: s2= Y × R;
third additive addition amount: s3= Z × R;
fourth additive addition amount: s4= W × R.
Specifically, a first additive with the addition amount of S1, a second additive with the addition amount of S2, a third additive with the addition amount of S3 and a fourth additive with the addition amount of S4 are sequentially added during roughing; during the scavenging, the fourth additive with the addition amount of S4/2 is added again.
Specifically, for the finely ground product particle fineness matrix a0, a0(a1, a2, A3, a4), wherein a1 is a first predetermined particle fineness, a2 is a second predetermined particle fineness, A3 is a third predetermined particle fineness, and a4 is a fourth predetermined particle fineness, each of the fineness values sequentially increasing;
for the fine grinding product particle pair water adding base number adjusting parameter matrixes C0 and C0(C1, C2 and C3), wherein C1 is a first preset fine grinding product particle pair water adding base number adjusting parameter, C2 is a second preset fine grinding product particle pair water adding base number adjusting parameter, C3 is a third preset fine grinding product particle pair water adding base number adjusting parameter, and all the adjusting parameters are sequentially increased;
when the fine grinding product is subjected to size mixing, the particle fineness A of the fine grinding product is detected and the detection result is transmitted to the central control module, and the central control module compares the A with the internal parameters of the A0 matrix to adjust the size mixing and water adding base number of the fine grinding product:
when A is less than or equal to A1, the central control module judges that the fineness of the particles of the finely ground product is qualified, and the central control module does not adjust the base number of the slurry-mixing and water-adding of the finely ground product;
when A is more than A1 and less than or equal to A2, the central control module judges that the fineness of the fine grinding product particles is unqualified, and selects C1 from the matrix C0 as a water adding base number adjusting parameter of the fine grinding product particles;
when A is more than A2 and less than or equal to A3, the central control module judges that the fineness of the fine grinding product particles is unqualified, and selects C2 from the matrix C0 as a water adding base number adjusting parameter of the fine grinding product particles;
when A is more than A3 and less than or equal to A4, the central control module judges that the fineness of the fine grinding product particles is unqualified, and selects C3 from the matrix C0 as a water adding base number adjusting parameter of the fine grinding product particles;
when A is larger than A4, the central control module judges that the particle fineness of the finely ground product is serious, and the finely ground product is put into the wet vertical mill again for fine grinding;
when Ci is selected as a parameter for adjusting the base number of water addition of the fine grinding product particle pair, the central control module adjusts the base number of water addition for size mixing of the fine grinding product to be B ', B' = B multiplied by Ci.
Specifically, when the finely ground product is added with water and is subjected to size mixing, the quality M of the finely ground product to be mixed is detected, the water adding amount V is calculated by the central control module according to the quality M and the water adding base number B ', and V = M × B', and the finely ground product is stirred after water is added to generate the initial size.
Specifically, for the slurry concentration parameter matrixes D0, D0(D1, D2, D3, D4), wherein D1 is a first preset slurry concentration parameter, D2 is a second preset slurry concentration parameter, D3 is a third preset slurry concentration parameter, and D4 is a fourth preset slurry concentration parameter, the concentration parameters are sequentially increased;
for the pulp concentration versus water addition amount compensation addition amount adjustment parameter matrixes E0 and E0 (E1, E2, E3 and E4), wherein E1 is a first preset pulp concentration versus water addition amount compensation addition amount adjustment parameter, E2 is a second preset pulp concentration versus water addition amount compensation addition amount adjustment parameter, E3 is a third preset pulp concentration versus water addition amount compensation addition amount adjustment parameter, and E4 is a fourth preset pulp concentration versus water addition amount compensation addition amount adjustment parameter;
when the primary pulp adjustment is completed, detecting the primary pulp concentration D and transmitting the detection result to the central control module, wherein the central control module compares the D with the internal parameters of the matrix D0:
when D is less than or equal to D1, the central control module judges that the primary pulp concentration is qualified, and does not add water to adjust the primary pulp;
when D is more than D1 and less than or equal to D2, the central control module judges that the initial slurry concentration is out of tolerance, and selects E1 from a matrix E0 as a slurry concentration to water addition amount compensation addition amount adjusting parameter;
when D is more than D2 and less than or equal to D3, the central control module judges that the initial slurry concentration is out of tolerance, and selects E2 from a matrix E0 as a slurry concentration to water addition amount compensation addition amount adjusting parameter;
when D is more than D3 and less than or equal to D4, the central control module judges that the initial slurry concentration is out of tolerance, and selects E3 from a matrix E0 as a slurry concentration to water addition amount compensation addition amount adjusting parameter;
when D is larger than D4, the central control module judges that the initial pulp concentration is out of tolerance, and selects E4 from the matrix E0 as a pulp concentration to water addition amount compensation addition amount adjusting parameter;
when Ej is selected as a slurry concentration to water addition amount compensation addition amount adjusting parameter, j =1,2,3,4, and the central control module calculates the water addition amount compensation addition amount V ', V' = V multiplied by Ej;
when water addition quantity needs to be compensated and added, adding water with the quantity of V 'into the primary pulp, stirring the primary pulp after the water addition is finished, detecting the concentration D' of the pulp after the water addition is finished, comparing the D 'with the internal parameters of the matrix D0 by the central control module, and judging that the concentration of the primary pulp is qualified by the central control module when the D' is not more than D1; when D '> D1, the above procedure was repeated until D' ≦ D1.
Specifically, the first additive is sodium hydroxide, the second additive is calcium chloride, the third additive is starch, and the fourth additive is HG-3;
the HG-3 is a micro-fine particle gangue flotation efficient combined collecting agent which is prepared by mixing modified fatty acid and butyl xanthate according to the proportion of 3:1, and the HG-3 comprises the following minerals except iron ore: cassiterite, quartz, carbonate, silicate and sulphide ore have better collecting effect, wherein the flotation effect on the micro-fine cassiterite is better.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (8)
1. The ore dressing process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite dyeing type iron ore is characterized by comprising the following steps of:
s1, grinding and magnetic separation, wherein the raw ore is subjected to section I grinding and section I magnetic separation, the magnetic concentrate of the section I is subjected to section II grinding and section II magnetic separation, and the magnetic concentrate of the section II enters section III magnetic separation to obtain magnetic concentrate; I. carrying out magnetic scavenging on the magnetic tailings in the sections II and III, losing the magnetic scavenged tailings to the tail, and returning the magnetic scavenged concentrate to the section II for ore grinding; the grade of the iron ore concentrate is improved through multi-section ore grinding-magnetic separation;
s2, fine grinding, wherein the magnetic concentrate obtained in the step 1 is subjected to fine grinding by a wet vertical mill, and the fine ground product is used for reverse flotation;
s3, reverse flotation, namely, mixing the fine ground product, and obtaining reverse flotation concentrate at the bottom of the tank by adopting a primary and secondary coarse flotation process;
s4, concentrating and dehydrating the reverse flotation concentrate in a concentration tank, and obtaining high-quality iron concentrate from the bottom flow of the concentration tank;
when the ore dressing process is adopted to carry out ore dressing on the dip-dyed iron ore, a central control module is arranged and used for adjusting the working state of each part in the process of the ore dressing process;
in the step S1, a reagent needs to be added to the raw ore, and the central control module is provided with an additive addition quantity base matrix F0, a raw ore iron content parameter matrix G0, a raw ore iron content to first additive addition quantity base compensation parameter matrix H0, a raw ore PH value matrix Q0, and a raw ore PH value to first additive addition quantity base compensation parameter matrix P0;
for each additive addition amount base matrix F0, F0(X, Y, Z, W), wherein X is the first additive addition amount base, Y is the second additive addition amount base, Z is the third additive addition amount base, and W is the fourth additive addition amount base;
the first additive is sodium hydroxide, the second additive is calcium chloride, the third additive is starch, and the fourth additive is HG-3;
the HG-3 is a micro-fine particle gangue flotation efficient combined collecting agent which is prepared by mixing modified fatty acid and butyl xanthate according to the proportion of 3:1, and the HG-3 comprises the following minerals except iron ore: cassiterite, quartz, carbonate, silicate and sulphide ore have better collecting effect, wherein the flotation effect on the micro-fine cassiterite is better;
when a medicament needs to be added into the raw ore, detecting the iron content G in the raw ore and transmitting the detection result to a central control module, wherein the central control module compares the G with internal parameters of G0, and carries out primary adjustment on the base number of the addition amount of the first additive according to the comparison result;
when the adjustment of the iron content of the raw ore on the addition quantity base number of the first additive is finished, detecting the pH value Q of the raw ore and transmitting the detection result to the central control module, comparing the Q with the internal parameters of Q0 by the central control module, and secondarily adjusting the addition quantity base number of the first additive by the central control module according to the comparison result;
in the step S3, adding water into the fine grinding product for size mixing, wherein a fine grinding product particle fineness matrix A0, a fine grinding product size mixing and water adding base number B, a fine grinding product particle water adding base number adjusting parameter matrix C0, a slurry concentration parameter matrix D0 and a slurry concentration water adding amount compensation adding amount adjusting parameter matrix E0 are arranged in the central control module;
when the fine grinding product is subjected to size mixing, detecting the particle fineness A of the fine grinding product and transmitting the detection result to a central control module, wherein the central control module compares the A with the internal parameters of an A0 matrix so as to adjust the size mixing and water adding base number of the fine grinding product;
the central control module calculates the pulp mixing water adding amount according to the adjusted water adding base number, after the calculated water adding amount is added to the fine grinding product, the fine grinding product is stirred to generate primary pulp, the primary pulp concentration D is detected, the detection result is transmitted to the central control module, the central control module compares the D with the internal parameters of the matrix D0, and the central control module calculates the water adding amount according to the primary pulp concentration to compensate the adding value.
2. The beneficiation process for preparing high-purity iron ore concentrate by reducing impurities of cassiterite-dyed iron ores according to claim 1, wherein for a raw ore iron content parameter matrix G0, G0(G1, G2, G3, G4), G1 is a first preset raw ore iron content parameter, G2 is a second preset raw ore iron content parameter, G3 is a third preset raw ore iron content parameter, and G4 is a fourth preset raw ore iron content parameter, wherein the iron content parameters are sequentially increased;
for a primary ore iron content versus first additive addition quantity base compensation parameter matrix H0, H0(H1, H2, H3, H4), wherein H1 is a first preset primary ore iron content versus first additive addition quantity base compensation parameter, H2 is a second preset primary ore iron content versus first additive addition quantity base compensation parameter, H3 is a third preset primary ore iron content versus first additive addition quantity base compensation parameter, H4 is a fourth preset primary ore iron content versus first additive addition quantity base compensation parameter, and all the parameters are sequentially reduced;
when a medicament is required to be added into raw ore, detecting the iron content G in the raw ore and transmitting the detection result to a central control module, wherein the central control module compares G with internal parameters of G0:
when G is less than or equal to G1, the central control module selects H1 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is more than G1 and less than or equal to G2, the central control module selects H2 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is more than G2 and less than or equal to G3, the central control module selects H3 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is more than G3 and less than or equal to G4, the central control module selects H4 from the matrix H0 as a base number compensation parameter of the iron content of the raw ore to the addition amount of the first additive;
when G is larger than G4, the central control module judges that the iron content of the raw ore is qualified;
when Hk is selected as a compensation parameter of the iron content of the raw ore to the adding amount base number of the first additive, k =1,2,3,4, and the central control module adjusts the adding amount base number of the first additive to be X ', X' = XX (G4-G) xHk.
3. The beneficiation process for preparing high purity iron concentrate by reducing impurities from cassiterite-dyed iron ores according to claim 2, wherein for a PH matrix Q0, Q0(Q1, Q2, Q3, Q4) of run ore, wherein Q1 is a first predetermined run ore PH, Q2 is a second predetermined run ore PH, Q3 is a third predetermined run ore PH, Q4 is a fourth predetermined run ore PH, each of the PH values sequentially increasing;
for a matrix P0 and P0 (P1, P2, P3 and P4) of compensation parameters of the pH value of the raw ore relative to the addition amount base number of the first additive, wherein P1 is a compensation parameter of the pH value of a first preset raw ore relative to the addition amount base number of the first additive, P2 is a compensation parameter of the pH value of a second preset raw ore relative to the addition amount base number of the first additive, P3 is a compensation parameter of the pH value of a third preset raw ore relative to the addition amount base number of the first additive, and P4 is a compensation parameter of the pH value of a fourth preset raw ore relative to the addition amount base number of the first additive, wherein all compensation parameter values are sequentially reduced;
when the adjustment of the iron content of the raw ore on the basis number of the added first additive is finished, detecting the pH value Q of the raw ore and transmitting the detection result to a central control module, wherein the central control module compares the Q with internal parameters of Q0:
when Q is less than or equal to Q1, the central control module selects P1 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q1 and less than or equal to Q2, the central control module selects P2 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q2 and less than or equal to Q3, the central control module selects P3 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q3 and less than or equal to Q4, the central control module selects P4 from the P0 matrix as a base number compensation parameter of the addition amount of the first additive to the pH value of the raw ore;
when Q is more than Q4, the central control module does not adjust the base number of the addition amount of the first additive according to the pH value of the raw ore;
when Pq is selected as a compensation parameter of the pH value of the raw ore to the base number of the addition amount of the first additive, Q =1,2,3 and 4, the central control module compensates the base number of the addition amount of the first additive to X ', X ' = X ' × (Q4-Q). times Pq.
4. The beneficiation process for preparing high-purity iron ore concentrate by impurity reduction of the cassiterite-impregnated iron ore according to claim 3, wherein when a medicament needs to be added into raw ore, the quality R of the raw ore is detected, and the central control module determines the addition amount of each additive according to the quality R of the raw ore and the addition base number of each additive;
the adding amount of the first additive is as follows: s1= X "× R;
the adding amount of the second additive is as follows: s2= Y × R;
third additive addition amount: s3= Z × R;
fourth additive addition amount: s4= W × R.
5. The beneficiation process for preparing the high-purity iron concentrate by reducing impurities of the cassiterite dyeing type iron ore according to claim 4, wherein a first additive with the addition amount of S1, a second additive with the addition amount of S2, a third additive with the addition amount of S3 and a fourth additive with the addition amount of S4 are added in sequence during rough concentration; during the scavenging, the fourth additive is added again in the amount of S4/2.
6. The beneficiation process to produce high purity iron concentrate from reduced impurities from cassiterite-dyed iron ore according to claim 1, wherein for the finely ground product particle fineness matrix a0, a0(a1, a2, A3, a4), wherein a1 is a first predetermined particle fineness, a2 is a second predetermined particle fineness, A3 is a third predetermined particle fineness, a4 is a fourth predetermined particle fineness, each of the fineness values increasing in order;
for the fine grinding product particle pair water adding base number adjusting parameter matrixes C0 and C0(C1, C2 and C3), wherein C1 is a first preset fine grinding product particle pair water adding base number adjusting parameter, C2 is a second preset fine grinding product particle pair water adding base number adjusting parameter, C3 is a third preset fine grinding product particle pair water adding base number adjusting parameter, and all the adjusting parameters are sequentially increased;
when finely ground product size mixing, detect the particle fineness A of finely ground product and transmit the testing result to well accuse module, well accuse module compares A and A0 matrix internal parameter to adjust finely ground product size mixing water addition cardinal number:
when A is less than or equal to A1, the central control module judges that the fineness of the fine ground product is qualified, and the central control module does not adjust the base number of slurry mixing and water adding of the fine ground product;
when A is more than A1 and less than or equal to A2, the central control module judges that the fineness of the fine grinding product particles is unqualified, and selects C1 from the matrix C0 as a water adding base number adjusting parameter of the fine grinding product particles;
when A is more than A2 and less than or equal to A3, the central control module judges that the fineness of the fine grinding product particles is unqualified, and selects C2 from the matrix C0 as a water adding base number adjusting parameter of the fine grinding product particles;
when A is more than A3 and less than or equal to A4, the central control module judges that the fineness of the fine grinding product particles is unqualified, and the central control module selects C3 from the matrix C0 as a water adding base number adjusting parameter of the fine grinding product particles;
when A is larger than A4, the central control module judges that the particle fineness of the finely ground product is over-tolerance seriously, and the finely ground product is put into the wet vertical mill again for fine grinding;
when Ci is selected as a parameter for adjusting the base number of water addition of the fine grinding product particle pair, the central control module adjusts the base number of water addition for size mixing of the fine grinding product to be B ', B' = B multiplied by Ci.
7. The beneficiation process for preparing high-purity iron ore concentrate from cassiterite-impregnated iron ores according to claim 6, wherein when water is added to and size-mixed with the fine-milled product, the quality M of the fine-milled product to be size-mixed is detected, the water adding amount V is calculated by the central control module according to the quality M and the water adding base number B ', and V = MxB', and after water is added, the fine-milled product is stirred to generate primary slurry.
8. The cassiterite-impregnated iron ore beneficiation process to reduce impurities and produce high purity iron concentrate according to claim 7, wherein for the slurry concentration parameter matrix D0, D0(D1, D2, D3, D4), wherein D1 is a first preset slurry concentration parameter, D2 is a second preset slurry concentration parameter, D3 is a third preset slurry concentration parameter, and D4 is a fourth preset slurry concentration parameter, the concentration parameters increasing in order;
for the pulp concentration versus water addition amount compensation addition amount adjustment parameter matrixes E0 and E0 (E1, E2, E3 and E4), wherein E1 is a first preset pulp concentration versus water addition amount compensation addition amount adjustment parameter, E2 is a second preset pulp concentration versus water addition amount compensation addition amount adjustment parameter, E3 is a third preset pulp concentration versus water addition amount compensation addition amount adjustment parameter, and E4 is a fourth preset pulp concentration versus water addition amount compensation addition amount adjustment parameter;
when the primary pulp adjustment is completed, detecting the primary pulp concentration D and transmitting the detection result to the central control module, wherein the central control module compares the D with the internal parameters of the matrix D0:
when D is less than or equal to D1, the central control module judges that the concentration of the primary slurry is qualified, and the primary slurry is not adjusted by adding water;
when D is more than D1 and less than or equal to D2, the central control module judges that the initial slurry concentration is out of tolerance, and selects E1 from a matrix E0 as a slurry concentration to water addition amount compensation addition amount adjusting parameter;
when D is more than D2 and less than or equal to D3, the central control module judges that the initial slurry concentration is out of tolerance, and selects E2 from a matrix E0 as a slurry concentration to water addition amount compensation addition amount adjusting parameter;
when D is more than D3 and less than or equal to D4, the central control module judges that the initial slurry concentration is out of tolerance, and selects E3 from a matrix E0 as a slurry concentration to water addition amount compensation addition amount adjusting parameter;
when D is larger than D4, the central control module judges that the initial pulp concentration is out of tolerance, and selects E4 from the matrix E0 as a pulp concentration to water addition amount compensation addition amount adjusting parameter;
when Ej is selected as a slurry concentration to water addition amount compensation addition amount adjusting parameter, j =1,2,3,4, and the central control module calculates the water addition amount compensation addition amount V ', V' = V multiplied by Ej;
when water addition quantity needs to be compensated and added, adding water with the quantity of V 'into the primary pulp, stirring the primary pulp after the water addition is finished, detecting the concentration D' of the pulp after the water addition is finished, comparing the D 'with the internal parameters of the matrix D0 by the central control module, and judging that the concentration of the primary pulp is qualified by the central control module when the D' is not more than D1; when D '> D1, the above procedure was repeated until D' ≦ D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011543257.3A CN112892847B (en) | 2020-12-24 | 2020-12-24 | Beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite dyeing type iron ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011543257.3A CN112892847B (en) | 2020-12-24 | 2020-12-24 | Beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite dyeing type iron ore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112892847A CN112892847A (en) | 2021-06-04 |
| CN112892847B true CN112892847B (en) | 2022-09-27 |
Family
ID=76111565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011543257.3A Active CN112892847B (en) | 2020-12-24 | 2020-12-24 | Beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite dyeing type iron ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112892847B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114643194A (en) * | 2022-03-21 | 2022-06-21 | 河南天元煤业有限公司 | Method for treating flotation concentrate by adopting fine screen |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036904A (en) * | 2007-04-30 | 2007-09-19 | 中南大学 | Flotation froth image recognition device based on machine vision and the mine concentration grade forecast method |
| DE102017110474A1 (en) * | 2017-05-15 | 2018-11-15 | Ecoenergy Gesellschaft Für Energie- Und Umwelttechnik Mbh | Process for the removal of organic and inorganic pollutants from waste by wet mechanical separation |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE371754B (en) * | 1972-09-26 | 1974-12-02 | Boliden Ab | |
| DE102004010303A1 (en) * | 2004-03-03 | 2005-09-22 | Norbert Mucha | Utilization of polyurethane rigid foam plates (preferably residual pieces of the plates) in the package industry e.g. as fillers, comprises mechanically crushing the plates and their residues into an utilizable product |
| GB0423256D0 (en) * | 2004-10-20 | 2004-11-24 | Andres Uri | Liberation of minerals and metallic inclusions by application of high voltage electrical pulses |
| CN101219413B (en) * | 2008-01-22 | 2013-04-10 | 福州昌晖自动化系统有限公司 | Technique for manufacturing hyperpure iron extract |
| CN101545038B (en) * | 2009-05-06 | 2010-08-11 | 个旧玉龙再生资源经营有限公司 | Method for producing iron ore concentrate by using poor-tin sulfide ore tailings |
| CN102172559A (en) * | 2010-12-29 | 2011-09-07 | 昆明冶金研究院 | Tungsten and tin recovery concentration method combining centrifugal concentration with floatation |
| CN102974469B (en) * | 2012-12-21 | 2014-12-10 | 长沙矿冶研究院有限责任公司 | Method for reducing sulfur in iron ore concentrate through flotation |
| CN104014417A (en) * | 2014-05-30 | 2014-09-03 | 鞍钢集团矿业公司 | Beneficiation method for micro-fine iron ore |
| CN106583023A (en) * | 2016-11-23 | 2017-04-26 | 昆明理工大学 | Beneficiation method for microgranular cassiterite |
| CN108993762B (en) * | 2018-07-20 | 2020-06-05 | 西安科技大学 | Density and liquid level control device for dense medium coal separation and coordination control method |
| CN110090728B (en) * | 2019-01-24 | 2020-11-06 | 济南大学 | Method, device and equipment for controlling feeding amount in cement raw material vertical mill |
| CN111644270B (en) * | 2020-06-15 | 2023-01-31 | 广东省科学院资源利用与稀土开发研究所 | Beneficiation process for recovering fluorite from tailings |
-
2020
- 2020-12-24 CN CN202011543257.3A patent/CN112892847B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036904A (en) * | 2007-04-30 | 2007-09-19 | 中南大学 | Flotation froth image recognition device based on machine vision and the mine concentration grade forecast method |
| DE102017110474A1 (en) * | 2017-05-15 | 2018-11-15 | Ecoenergy Gesellschaft Für Energie- Und Umwelttechnik Mbh | Process for the removal of organic and inorganic pollutants from waste by wet mechanical separation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112892847A (en) | 2021-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111905918B (en) | Method for preparing ultrapure iron concentrate by deep processing of commercial grade magnetite concentrate | |
| CN101850295B (en) | Beneficiation method for producing high-quality iron ore concentrate by low-grade magnetic iron ore | |
| CN103350027B (en) | Graded desliming pressurized feeding three products heavy medium cyclone coal preparation technique | |
| CN108993777B (en) | Lepidolite flotation method | |
| CN103433149B (en) | Polymetallic sulphide ore flotation process capable of increasing zinc index | |
| CN105197920B (en) | A kind of purification by mineral method of micro crystal graphite | |
| CN112642575B (en) | Magnetic levitation combined separation method for carbonate-containing lean magnetic hematite mixed iron ore | |
| CN107694762B (en) | A kind of composition and method for floating of the flotation collecting rutile from ore | |
| CN109821661A (en) | A kind of low alkali of high sulfur-lead-zinc ore is without sulfuric acid floatation process | |
| CN112892847B (en) | Beneficiation process for preparing high-purity iron ore concentrate by reducing impurities in cassiterite dyeing type iron ore | |
| CN102489407A (en) | Mineral processing method for recycling scheelite/molybdenum oxide ores from molybdenum sulfide flotation tailings | |
| CN101972705A (en) | Benefication method for copper nickel | |
| CN101856634B (en) | Iron-increasing and silicon-reduction mineral separation method for iron ores | |
| CN102029220A (en) | Separating flotation method of low-grade complex lead-antimony-zinc | |
| AU2017421972B2 (en) | Double-region flotation method for copper-cobalt sulfide ore in industrial production | |
| CN101786049A (en) | Flotation method of lead-zinic-sulphide ore with high oxygenation efficiency | |
| CN104174504A (en) | Direct-flotation branching floatation method of low-and-medium-grade mixed type refractory collophane | |
| CN108672102A (en) | A kind of method for floating of phosphorus ore | |
| CN105880007A (en) | Separation method for tennantite and galena | |
| CN112657672B (en) | Synthesis and use method of organic polymer medicament for reinforcing fine iron mineral recovery | |
| CN108816499B (en) | A kind of Combination of magnetic separation flotation beneficiation method of black clouds parent form ore containing rubidium | |
| CN106391297A (en) | Dressing method of copper tin sulphide ore | |
| CN106622641B (en) | The method that rich indium marmatite is recycled in association polymetallic ore is total under low alkali from copper zinc indium | |
| CN103252290B (en) | Process for selecting marmatite from high ferric sulphide ore | |
| CN111298978A (en) | Method for flotation of lepidolite without desliming |
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 |