CN109433404A - Golden grinding circuit gravity treatment recyclable device and recovery method - Google Patents
Golden grinding circuit gravity treatment recyclable device and recovery method Download PDFInfo
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- CN109433404A CN109433404A CN201811295760.4A CN201811295760A CN109433404A CN 109433404 A CN109433404 A CN 109433404A CN 201811295760 A CN201811295760 A CN 201811295760A CN 109433404 A CN109433404 A CN 109433404A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Abstract
The invention discloses a kind of golden grinding circuit gravity treatment recyclable devices, including semi-autogenous mill, the first cyclone group, ball mill, the first centrifugal ore separator and the second centrifugal ore separator, the first cyclone group is for carrying out classification processing to the ore discharge slurry of semi-autogenous mill, to obtain sand setting product and overflow product；The ball mill is used to carry out ball milling to the sand setting product；The mine-discharging terminal of the ball mill is arranged in first centrifugal ore separator, and for selecting one section of Gold Concentrate under Normal Pressure from the ore grinding that the ball mill is discharged, the first cyclone group of the first centrifugal ore separator gravity tailings return forms closed circuit；Second centrifugal ore separator is arranged at the overflow of the first cyclone group, for selecting two sections of Gold Concentrate under Normal Pressure from the overflow product.Gold Concentrate under Normal Pressure is recycled by two sections of reinforcing gravity treatments as a result, recovering effect is good, improves economic benefit.The invention also discloses a kind of golden grinding circuit gravity treatment recovery methods.
Description
Technical field
The present invention relates to golden grinding circuit gravity treatment recovery technology field more particularly to a kind of golden grinding circuit gravity treatment recycling dresses
It sets and method.
Background technique
It is a kind of very important beneficiation method for the gold ore containing free gold that gravity separation method, which recycles gold,.Gravity separation method recycling
Gold meets the basic principle of ore dressing field " fast to receive early receive ", backlog golden in entire beneficiation flowsheet is advantageously reduced, to have
Conducive to the cash flow of enterprise.Gold can advantageously reduce building for subsequent Cyanide Leaching system by gravity separation method recycling in grinding circuit
If investing, and reduce gold to recycle in subsequent beneficiating process and lose the risk in tailing.
There are mainly two types of common gravity separation method recycling golden clothes are set in grinding circuit at present, one is set centrifugal ore separator
At grinding system classifying equipoment, that is, hydrocyclone group sand setting, generally using gravity concentrator to part sand setting ore pulp (about 25%
~40%) recycling of gold is carried out；Another kind is the mine-discharging terminal that centrifugal ore separator is placed in ball mill.It is either heavy for cyclone
Sand is still directed to ball mill ore discharging progress gravity treatment recycling and is only capable of carrying out more coarse grained free gold more effective recycling, and
It is poor to the recovering effect of more fine-graded free gold or certain golden intergrowths.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose a kind of golden grinding circuit gravity treatment recyclable device, coarse fraction free gold can be recycled and recycle fine fraction free gold
It is good with partially golden intergrowth, recovering effect.
Gold grinding circuit gravity treatment recyclable device according to an embodiment of the present invention, comprising:
First cyclone group, the first cyclone group are used for semi-autogenous mill and the first centrifugal ore separator gravity tailings
Ore discharge slurry carries out classification processing, to obtain sand setting product and overflow product；
Ball mill, the ball mill are used to carry out ball milling to the sand setting product；
The mine-discharging terminal of the ball mill is arranged in first centrifugal ore separator, first centrifugal ore separator, is used for from described
One section of Gold Concentrate under Normal Pressure is selected in the ore grinding of ball mill discharge and obtains the first centrifugal ore separator gravity tailings, first centrifugation
Ore separators gravity tailings is back to the first cyclone group；
Second centrifugal ore separator, second centrifugal ore separator are arranged at the overflow of the first cyclone group, are used for
Two sections of Gold Concentrate under Normal Pressure are selected from the overflow product.
Gold grinding circuit gravity treatment recyclable device according to an embodiment of the present invention, in the first centrifugation of mine-discharging terminal setting of ball mill
Ore separators and the second centrifugal ore separator of setting at the overflow of the first cyclone group；By the first centrifugal ore separator from sand setting product
In select one section of Gold Concentrate under Normal Pressure, one section of Gold Concentrate under Normal Pressure is mainly coarse fraction free gold；Through the second centrifugal ore separator from overflow product
Two sections of Gold Concentrate under Normal Pressure are selected, two sections of Gold Concentrate under Normal Pressure are mainly the golden intergrowth of particulate free gold and part, hereby it is achieved that two sections of reinforcing weights
Choosing recycling Gold Concentrate under Normal Pressure, then by subsequent effective gravity treatment gold treatment process (such as enhanced leaching), it is complete that gravity treatment+leaching can be effectively improved
The comprehensive recovery of process, recovering effect is good, improves economic benefit.
It according to one embodiment of present invention, further include that mine classifying screen is given in gravity treatment, the gravity treatment is to mine classifying screen along work
Skill side is set up between the mine-discharging terminal and first centrifugal ore separator of the ball mill, for the ball mill to be discharged
Ore grinding carry out sizing screening, the gravity treatment to slurry under the sieve of mine classifying screen enter first centrifugal ore separator, it is described heavy
The on-the-sieve material to mine classifying screen is selected to be back to the first cyclone group.
Further embodiment according to the present invention further includes the first cyclone group to mine pump pond and the first Pulp pump, described
First cyclone group pumps pond to mine and first Pulp pump is being set in sequence in the semi-autogenous mill and institute along process orientation
It states between the first cyclone group, the first cyclone group is to mine pump pond for receiving the ore discharge slag from the semi-autogenous mill
Slurry, first Pulp pump are used to from the first cyclone group pump the ore discharge slurry of the semi-autogenous mill in pond to mine and pump
To the first cyclone group.
Further embodiment, the first cyclone group are also used to receive the gravity treatment to mine pump pond according to the present invention
To the on-the-sieve material of mine classifying screen.
Further embodiment, the first cyclone group are also used to receive described first to mine pump pond according to the present invention
Centrifugal ore separator gravity tailings.
Further embodiment according to the present invention further includes stirred tank, and institute is being arranged in the stirred tank along process orientation
Gravity treatment is stated between mine classifying screen and first centrifugal ore separator, after slurry enters stirred tank stirring buffering under the sieve
From flowing to first centrifugal ore separator.
Further embodiment according to the present invention further includes that the first centrifugal ore separator to mine pumps pond and the second Pulp pump,
First centrifugal ore separator to mine pump pond and second Pulp pump be set in sequence in along process orientation the gravity treatment to
Between mine classifying screen and the stirred tank, first centrifugal ore separator gives mine classifying screen for receiving the gravity treatment to mine pump pond
Sieve under slurry, second Pulp pump is used for the gravity treatment to slurry under the sieve of mine classifying screen from first centrifugal separation
Machine is pumped to the stirred tank to mine pump pond.
It according to one embodiment of present invention, further include deslagging screen, the deslagging screen is being arranged along process orientation in institute
It states between the first cyclone group and second centrifugal ore separator, for carrying out the overflow product except Slag treatment is to be removed
Slag ore pulp, so that second centrifugal ore separator selects two sections of Gold Concentrate under Normal Pressure from the slagging-off ore pulp.
Further embodiment according to the present invention further includes the second cyclone group, and the second cyclone group is in technique side
It sets up between the deslagging screen and second centrifugal ore separator, for being dehydrated the slagging-off ore pulp eddy flow so that institute
State slagging-off ore pulp concentration thicken after from flowing to second centrifugal ore separator.
Further embodiment according to the present invention further includes that the second cyclone group to mine pumps pond and third Pulp pump, institute
State the second cyclone group to mine pump pond and the third Pulp pump be sequentially set on process orientation the deslagging screen with it is described
Between second spigot group, the second cyclone group is used to receive the slagging-off ore pulp of the deslagging screen to mine pump pond, described
Third Pulp pump is used to the slagging-off ore pulp being pumped to the second cyclone group to mine pump pond from the second cyclone group.
The present invention also provides a kind of golden grinding circuit gravity treatment recovery methods.
Gold grinding circuit gravity treatment recovery method according to an embodiment of the present invention, includes the following steps:
The ore discharge slurry of cyclone classification, semi-autogenous mill and the first centrifugal ore separator gravity tailings by the first cyclone group into
Row cyclone classification obtains sand setting product and overflow product；
One section of Gold Concentrate under Normal Pressure gravity treatment selects the sand setting product by the first centrifugal ore separator again after ball mill ball milling
One section of Gold Concentrate under Normal Pressure simultaneously obtains the first centrifugal ore separator gravity tailings, and the first centrifugal ore separator gravity tailings is back to institute
State the first cyclone group；
The overflow product is selected two sections of Gold Concentrate under Normal Pressure by the second centrifugal ore separator by two sections of Gold Concentrate under Normal Pressure gravity treatments, described
One section of Gold Concentrate under Normal Pressure and two sections of Gold Concentrate under Normal Pressure enter subsequent Gold Concentrate under Normal Pressure treatment process after merging.
Gold grinding circuit gravity treatment recovery method according to an embodiment of the present invention, semi-autogenous mill and the first centrifugal ore separator gravity treatment
The ore discharge slurry of tailing obtains sand setting product and overflow product by cyclone classification, sand setting product after ball milling by first from
Heart ore separators selects one section of Gold Concentrate under Normal Pressure, and one section of Gold Concentrate under Normal Pressure is mainly that coarse fraction free gold overflow product passes through the second centrifugal ore separator
Two sections of Gold Concentrate under Normal Pressure are selected, two sections of Gold Concentrate under Normal Pressure are mainly the golden intergrowth of particulate free gold and part.Hereby it is achieved that two sections of reinforcing weights
Choosing recycling Gold Concentrate under Normal Pressure can be effectively improved gravity treatment+leaching and be flowed entirely by subsequent effective gravity treatment gold treatment process (such as enhanced leaching)
The comprehensive recovery of journey, recovering effect is good, improves economic benefit.
According to one embodiment of present invention, one section of Gold Concentrate under Normal Pressure gravity treatment step includes that the processing of mine classifying screen is given in gravity treatment:
By the sand setting product after ball mill ball milling, give mine classifying screen to handle by gravity treatment, obtain sieving lower ore pulp pass through again it is described
First centrifugal ore separator selects one section of Gold Concentrate under Normal Pressure, obtains on-the-sieve material and is back to the first cyclone group progress cyclone classification.
Further embodiment according to the present invention, before the cyclone classification step: the ore discharge of the semi-autogenous mill
Slurry is pumped to the first cyclone group by the first Pulp pump from after flowing to the first cyclone group to mine pump pond.
Further embodiment according to the present invention obtains on sieve in the gravity treatment in mine classifying screen treatment process
Material is back to the first cyclone group in mine pump pond.
Further embodiment according to the present invention, the first centrifugal ore separator gravity tailings are back to described first
Cyclone group is in mine pump pond.
Further embodiment according to the present invention, one section of Gold Concentrate under Normal Pressure gravity treatment step further include stirred tank buffering: institute
It states after the lower ore pulp of sieve enters stirred tank stirring buffering and enters back into the first centrifugal ore separator.
Further embodiment according to the present invention, ore pulp enters stirred tank under the sieve specifically: ore pulp under the sieve
From the gravity treatment to mine classifying screen from the first centrifugal ore separator is flow to in mine pump pond, then described in being pumped to by the second Pulp pump
In stirred tank.
Further embodiment, two sections of Gold Concentrate under Normal Pressure gravity treatment step include removing Slag treatment according to the present invention: will be described
Overflow product is handled by deslagging screen, is obtained slagging-off ore pulp and is entered back into the second centrifugal ore separator.
Further embodiment according to the present invention, two sections of Gold Concentrate under Normal Pressure gravity treatment step further includes dehydration: described
The ore pulp that removes the gred is dehydrated by the second cyclone group eddy flow, and second centrifugation is entered back into after so that the concentration of the slagging-off ore pulp is thickened
Ore separators.
Further embodiment according to the present invention, in the dehydration process steps, the overflow of the second cyclone group
The solution that end overflow goes out enters in thickener after concentration, after being combined into the tailing of second centrifugal ore separator discharge
It is continuous to leach process.
Further embodiment according to the present invention, after the slagging-off pulp gravity flow to the second cyclone group pumps pond to mine,
It is pumped in the second cyclone group by third Pulp pump.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the structural schematic diagram of the golden grinding circuit gravity treatment recyclable device of the embodiment of the present invention；
Fig. 2 is the schematic diagram of the golden grinding circuit gravity treatment recovery method of the embodiment of the present invention.
Appended drawing reference:
1 first cyclone group of semi-autogenous mill pumps 2 first Pulp pump of pond, 3 first cyclone group 4 to mine
5 gravity treatment of ball mill pumps 7 second Pulp pump 8 of pond to mine to 6 first centrifugal ore separator of mine classifying screen
9 first centrifugal ore separator of stirred tank, 10 deslagging screen, 11 slag bucket 12
Second cyclone group pumps 13 third Pulp pump of pond, 14 second cyclone group 15 to mine
Second centrifugal ore separator, 16 thickener 17
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
Golden grinding circuit gravity treatment recyclable device according to an embodiment of the present invention and method are described below with reference to Fig. 1 and Fig. 2.
As shown in Figure 1, gold grinding circuit gravity treatment recyclable device according to an embodiment of the present invention, including the first cyclone group 4,
Ball mill 5, the first centrifugal ore separator 10 and the second centrifugal ore separator 16, wherein the first cyclone group 4 is used for semi-autogenous mill 1
Classification processing is carried out with the ore discharge slurry of 10 gravity tailings of the first centrifugal ore separator, to obtain sand setting product and overflow product；Ball
Grinding machine 5 is used to carry out ball milling to sand setting product；The mine-discharging terminal of ball mill 5 is arranged in first centrifugal ore separator 10, is used for from ball milling
One section of Gold Concentrate under Normal Pressure is selected in the ore grinding that machine 5 is discharged and obtains the first centrifugal ore separator gravity tailings, the first centrifugal ore separator gravity treatment
Tailing is back to the first cyclone group；Second centrifugal ore separator 16 is arranged at the overflow of the first cyclone group 4, is used for from overflow
Two sections of Gold Concentrate under Normal Pressure are selected in product.
Gold grinding circuit gravity treatment recyclable device according to an embodiment of the present invention, ball mill 5 mine-discharging terminal setting first from
Heart ore separators 10 and the second centrifugal ore separator 16 of setting at the overflow of the first cyclone group 4；Pass through the first centrifugal ore separator 10
One section of Gold Concentrate under Normal Pressure is selected from sand setting product, one section of Gold Concentrate under Normal Pressure is mainly coarse fraction free gold；Pass through the second centrifugal ore separator 16
Two sections of Gold Concentrate under Normal Pressure are selected from overflow product, two sections of Gold Concentrate under Normal Pressure are mainly the golden intergrowth of fine fraction free gold and part, real as a result,
Having showed two sections of reinforcing gravity treatment recycling Gold Concentrate under Normal Pressure can effectively be mentioned by subsequent effective gravity treatment gold treatment process (such as enhanced leaching)
The high full-range comprehensive recovery of gravity treatment+leaching, recovering effect is good, improves economic benefit.
It according to one embodiment of present invention, further include gravity treatment to mine classifying screen 6, gravity treatment is to mine classifying screen 6 along technique
Side is set up between the mine-discharging terminal and the first centrifugal ore separator 10 of ball mill 5, and the ore grinding for ball mill 5 to be discharged carries out
Sizing screening, gravity treatment enter the first centrifugal ore separator, on-the-sieve material of the gravity treatment to mine classifying screen to slurry under the sieve of mine classifying screen 6
It is back to the first cyclone, is conducive to the rate of recovery for improving Gold Concentrate under Normal Pressure into one as a result,.It is right to mine classifying screen 6 by setting gravity treatment
The ore grinding that ball mill 5 is discharged carries out sizing screening, advantageously ensures that the stable operation of the first centrifugal ore separator 10 and obtains preferably
Separation index.
Further embodiment according to the present invention, which further includes the first cyclone group, pumps pond 2 and the first Pulp pump 3 to mine, the
One cyclone group pumps pond 2 to mine and the first Pulp pump 3 is being set in sequence in semi-autogenous mill 1 and the first cyclone along process orientation
Between group 4, to mine pump pond 2 for receiving the ore discharge slurry from semi-autogenous mill 1, the first Pulp pump 3 is used for the first cyclone group
The ore discharge slurry of semi-autogenous mill 1 is pumped in pond 2 from the first cyclone group to mine and is pumped to the first cyclone group 4.
Further embodiment, the first cyclone group are also used to receive gravity treatment to mine point to mine pump pond 2 according to the present invention
The on-the-sieve material of grade sieve 6.In other words, gravity treatment is back to the first cyclone group to the on-the-sieve material of mine classifying screen 6 and pumps pond 2 to mine
Afterwards, then by the first Pulp pump 3 it is pumped back into the first cyclone group 4, it can be further after fine grinding again through the first centrifugal ore separator
10 further recycling, are conducive to the rate of recovery for improving Gold Concentrate under Normal Pressure.
Further embodiment, the first cyclone group are also used to receive the first centrifugation choosing to mine pump pond 2 according to the present invention
10 gravity tailings of mine machine realizes closed-circuit operation.In other words, 10 gravity tailings of the first centrifugal ore separator is back to the first cyclone
After group pumps pond 2 to mine, then be pumped back into the first cyclone group 4 by the first Pulp pump 3, can further return again to after fine grinding to
The first further recycling of centrifugal ore separator 10, is conducive to the rate of recovery for improving Gold Concentrate under Normal Pressure.
Further embodiment according to the present invention, further includes stirred tank 9, and gravity treatment is being arranged in stirred tank 9 along process orientation
It flow to the first centrifugation certainly between mine classifying screen 6 and the first centrifugal ore separator 10, sieving after lower slurry enters the stirring buffering of stirred tank 9
Ore separators 10.By the way that stirred tank 9 is arranged before the first centrifugal ore separator 10, so that gravity treatment can to slurry under the sieve of mine classifying screen 6
It first passes through stirred tank to be buffered, to realize to the gravity flow of the first centrifugal ore separator 10 to mine and stability contorting, to guarantee the
The sorting result of one centrifugal ore separator 10.
Further embodiment according to the present invention further includes that the first centrifugal ore separator to mine pumps pond 7 and the second Pulp pump
8, the first centrifugal ore separator pumps pond 7 to mine and the second Pulp pump 8 is being set in sequence in gravity treatment to mine classifying screen 6 along process orientation
Between stirred tank 9, the first centrifugal ore separator is to mine pump pond 7 for receiving gravity treatment to slurry under the sieve of mine classifying screen 6, the second slag
Stock pump 8 is used to gravity treatment being pumped to stirred tank 9 to mine pump pond 7 from the first centrifugal ore separator to slurry under the sieve of mine classifying screen 6.
According to one embodiment of present invention, further include deslagging screen 11, deslagging screen 11 along process orientation setting the
Between one cyclone group 4 and the second centrifugal ore separator 16, for overflow product carry out except Slag treatment with obtain slagging-off ore pulp, with
Just the second centrifugal ore separator 16 selects two sections of Gold Concentrate under Normal Pressure from slagging-off ore pulp, is conducive to the sorting index for improving the operation.And it passes through
It crosses slag charge on the sieve that deslagging screen 11 sifts out and enters slag bucket 12.
Further embodiment according to the present invention further includes the second cyclone group 15, and the second cyclone group 15 is in technique side
It sets up between deslagging screen 11 and the second centrifugal ore separator 16, for being dehydrated to slagging-off ore pulp eddy flow so that the ore pulp that removes the gred
Concentration flow to the second centrifugal ore separator 16 after thickening certainly.By using the second cyclone group in advance before the second centrifugal ore separator 16
15 are carried out dehydrating, so that the feed ore concentration of the second centrifugal ore separator 16 removes the gred, pulp density thickens, for example, slagging-off ore pulp
Concentration by being increased to 40%~50% lower than 25%, to reach the suitable feed ore concentration of the second centrifugal ore separator 16, to protect
Demonstrate,prove the sorting result of the second centrifugal ore separator 16.In addition, it is necessary to which explanation, also sets up in the effluent head of the second cyclone group 15
There is thickener 17, for receiving the overflow pulp of the second cyclone group 15, so that overflow pulp is concentrated, thickener overflow
For water as reuse technology water, thickener underflow goes subsequent leaching process, after avoiding the loss of fine fraction gold mineral and being conducive to
The continuous processing for leaching process.
Further embodiment according to the present invention further includes that the second cyclone group to mine pumps pond 13 and third Pulp pump
14, the second cyclone group pumps pond 13 to mine and third Pulp pump 14 is sequentially set to deslagging screen 11 and the second rotation on process orientation
Between device group, the second cyclone group is used to receive the slagging-off ore pulp of deslagging screen 11 to mine pump pond 13, and third Pulp pump 14 is used for will
Slagging-off ore pulp is pumped to the second cyclone group 15 to mine pump pond 13 from the second cyclone group.
The present invention also provides a kind of golden grinding circuit gravity treatment recovery methods, describe below according to Fig. 2 according to this hair
The golden grinding circuit gravity treatment recovery method of bright embodiment.
As illustrated in fig. 1 and 2, golden grinding circuit gravity treatment recovery method according to an embodiment of the present invention, includes the following steps:
The ore discharge slurry of cyclone classification, 10 gravity tailings of semi-autogenous mill 1 and the first centrifugal ore separator passes through the first cyclone
Group 4 carries out cyclone classification, obtains sand setting product and overflow product；
One section of Gold Concentrate under Normal Pressure gravity treatment selects sand setting product by the first centrifugal ore separator 10 again after 5 ball milling of ball mill
One section of Gold Concentrate under Normal Pressure simultaneously obtains 10 gravity tailings of the first centrifugal ore separator, and 10 gravity tailings of the first centrifugal ore separator is back to the first rotation
Flow device group 4；
Overflow product is selected two sections of Gold Concentrate under Normal Pressure, one section of Gold Concentrate under Normal Pressure by the second centrifugal ore separator 16 by two sections of Gold Concentrate under Normal Pressure gravity treatments
Enter subsequent Gold Concentrate under Normal Pressure treatment process after merging with two sections of Gold Concentrate under Normal Pressure.
Gold grinding circuit gravity treatment recovery method according to an embodiment of the present invention, semi-autogenous mill 1 and the first centrifugal ore separator 10
The ore discharge slurry of tailing obtains sand setting product and overflow product by cyclone classification, sand setting product after ball milling by first from
Heart ore separators 10 selects one section of Gold Concentrate under Normal Pressure, and one section of Gold Concentrate under Normal Pressure is mainly coarse fraction free gold.Overflow product passes through the second centrifugation choosing
Mine machine 16 selects two sections of Gold Concentrate under Normal Pressure, and two sections of Gold Concentrate under Normal Pressure are mainly the golden intergrowth of fine fraction free gold and part.Hereby it is achieved that two
Gold Concentrate under Normal Pressure is recycled in Duan Qianghua gravity treatment, by subsequent effective gravity treatment gold treatment process (such as enhanced leaching), can effectively improve gravity treatment+
Full-range comprehensive recovery is leached, recovering effect is good, improves economic benefit.
According to one embodiment of present invention, one section of Gold Concentrate under Normal Pressure gravity treatment step includes that the processing of mine classifying screen is given in gravity treatment: will be sunk
Sand product gives mine classifying screen 6 to handle after 5 ball milling of ball mill, by gravity treatment, obtains sieving lower ore pulp and passes through the first centrifugation choosing again
Mine machine 10 selects one section of Gold Concentrate under Normal Pressure, obtains on-the-sieve material and is back to the first cyclone group 4 progress cyclone classification, is thus conducive to mention
For the rate of recovery of one section of Gold Concentrate under Normal Pressure.Sizing screening is carried out by the ore grinding that ball mill 5 is discharged, advantageously ensures that the first centrifugation is selected
The stable operation of mine machine 10 and arrive preferable separation index.
Further embodiment according to the present invention, before cyclone classification step: the ore discharge slurry of semi-autogenous mill 1 is flow to certainly
After first cyclone group pumps pond 2 to mine, the first cyclone group 4 is pumped to by the first Pulp pump 3.
Further embodiment obtains on-the-sieve material and returns in gravity treatment in 6 treatment process of mine classifying screen according to the present invention
The first cyclone group is back to in mine pump pond 2.Thus, it is possible to further further be returned through the first centrifugal ore separator 10 again after fine grinding
It receives, is conducive to the rate of recovery for improving Gold Concentrate under Normal Pressure.
Further embodiment, 10 gravity tailings of the first centrifugal ore separator are back to first eddy flow according to the present invention
Device group is formed closed circuit in mine pump pond 2.It can further return again to the first centrifugal ore separator 10 after fine grinding and further return as a result,
It receives, is conducive to the rate of recovery for improving Gold Concentrate under Normal Pressure.
Further embodiment according to the present invention, one section of Gold Concentrate under Normal Pressure gravity treatment step further include stirred tank buffering: sieving lower ore pulp
The first centrifugal ore separator 10 is entered back into after stirring into stirred tank 9.Be conducive to gravity treatment as a result, to slurry under the sieve of mine classifying screen 6
Stirred tank can be first passed through to be buffered, to realize the gravity flow to the first centrifugal ore separator 10 to mine and stability contorting, to guarantee
The sorting result of first centrifugal ore separator 10.
Further embodiment, the lower ore pulp of sieve enter stirred tank 9 according to the present invention specifically: sieve lower ore pulp and give from gravity treatment
Mine classifying screen flow to the first centrifugal ore separator certainly and pumps in pond 7 to mine, then is pumped in stirred tank 9 by the second Pulp pump 8.
Further embodiment, two sections of Gold Concentrate under Normal Pressure gravity treatment steps include removing Slag treatment according to the present invention: by overflow product
It is handled by deslagging screen 11, obtains slagging-off ore pulp and enter back into the second centrifugal ore separator 16.Be conducive to improve the choosing of the operation as a result,
Other index.
Further embodiment according to the present invention, two sections of Gold Concentrate under Normal Pressure gravity treatment steps further include dehydration: slagging-off ore pulp
It is dehydrated by 15 eddy flow of the second cyclone group, enters back into the second centrifugal ore separator 16 after so that the concentration of slagging-off ore pulp is thickened.Pass through
It is carried out dehydrating in advance using the second cyclone group 15 before the second centrifugal ore separator 16, so that the second centrifugal ore separator 16
The i.e. slagging-off pulp density of feed ore concentration thickens, for example, the concentration of slagging-off ore pulp is increased to 40%~50% by being lower than 25%, to reach
To the suitable feed ore concentration of the second centrifugal ore separator 16, to guarantee the sorting result of the second centrifugal ore separator 16.In the dehydration
In processing step, the overflow pulp of the second cyclone group enters in thickener after concentration, thickener underflow ore pulp and second
The tailing of centrifugal ore separator discharge is combined into subsequent leaching process, is further recycled.
Further embodiment is led to after slagging-off pulp gravity flow to the second cyclone group is to mine pump pond 13 according to the present invention
Third Pulp pump 14 is crossed to be pumped in the second cyclone group 15.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (21)
1. a kind of gold grinding circuit gravity treatment recyclable device characterized by comprising
First cyclone group, the first cyclone group are used for the ore discharge to semi-autogenous mill and the first centrifugal ore separator gravity tailings
Slurry carries out classification processing, to obtain sand setting product and overflow product；
Ball mill, the ball mill are used to carry out ball milling to the sand setting product；
The mine-discharging terminal of the ball mill is arranged in first centrifugal ore separator, first centrifugal ore separator, is used for from the ball milling
One section of Gold Concentrate under Normal Pressure is selected in the ore grinding of machine discharge and obtains the first centrifugal ore separator gravity tailings, first centrifugal separation
Machine gravity tailings is back to the first cyclone group；
Second centrifugal ore separator, second centrifugal ore separator are arranged at the overflow of the first cyclone group, are used for from institute
It states and selects two sections of Gold Concentrate under Normal Pressure in overflow product.
2. gold grinding circuit gravity treatment recyclable device according to claim 1, which is characterized in that further include:
Mine classifying screen is given in gravity treatment, the gravity treatment to mine classifying screen the mine-discharging terminal that the ball mill is set along process orientation with
Between first centrifugal ore separator, the ore grinding for the ball mill to be discharged carries out sizing screening, and the gravity treatment is to mine point
Slurry enters first centrifugal ore separator under the sieve of grade sieve, and the gravity treatment is back to described the to the on-the-sieve material of mine classifying screen
One cyclone group.
3. gold grinding circuit gravity treatment recyclable device according to claim 2, which is characterized in that further include the first cyclone group
Pond and the first Pulp pump are pumped to mine, the first cyclone group pumps pond and first Pulp pump suitable along process orientation to mine
Sequence is arranged between the semi-autogenous mill and the first cyclone group, and the first cyclone group is come to mine pump pond for receiving
From the ore discharge slurry of the semi-autogenous mill, first Pulp pump is used for the ore discharge slurry of the semi-autogenous mill from described first
Cyclone group pumps in pond to mine and is pumped to the first cyclone group.
4. gold grinding circuit gravity treatment recyclable device according to claim 3, which is characterized in that the first cyclone group is given
Mine pump pond is also used to receive the gravity treatment to the on-the-sieve material of mine classifying screen.
5. gold grinding circuit gravity treatment recyclable device according to claim 3, which is characterized in that the first cyclone group is given
Mine pump pond is also used to receive the first centrifugal ore separator gravity tailings.
6. gold grinding circuit gravity treatment recyclable device according to claim 2, which is characterized in that further include:
The gravity treatment is being arranged to mine classifying screen and first centrifugal ore separator in stirred tank, the stirred tank along process orientation
Between, slurry flow to first centrifugal ore separator after entering stirred tank stirring buffering certainly under the sieve.
7. gold grinding circuit gravity treatment recyclable device according to claim 6, which is characterized in that further include:
First centrifugal ore separator pumps pond and the second Pulp pump to mine, and first centrifugal ore separator pumps pond and second slag to mine
Stock pump is being set in sequence in the gravity treatment between mine classifying screen and the stirred tank along process orientation, and first centrifugation is selected
To mine pump pond for receiving the gravity treatment to slurry under the sieve of mine classifying screen, second Pulp pump is used for the gravity treatment mine machine
The stirred tank is pumped to mine pump pond from first centrifugal ore separator to slurry under the sieve of mine classifying screen.
8. gold grinding circuit gravity treatment recyclable device according to claim 1, which is characterized in that further include:
Deslagging screen, the deslagging screen are being arranged along process orientation in the first cyclone group and second centrifugal ore separator
Between, for carrying out the overflow product except Slag treatment to obtain slagging-off ore pulp, so that second centrifugal ore separator is from institute
It states in slagging-off ore pulp and selects two sections of Gold Concentrate under Normal Pressure.
9. gold grinding circuit gravity treatment recyclable device according to claim 8, which is characterized in that further include:
Second cyclone group, the second cyclone group is arranged on process orientation to be selected in the deslagging screen and second centrifugation
Between mine machine, for being dehydrated to the slagging-off ore pulp eddy flow so that oneself flow to described second after the concentration of the slagging-off ore pulp thickens
Centrifugal ore separator.
10. gold grinding circuit gravity treatment recyclable device according to claim 9, which is characterized in that further include:
Second cyclone group pumps pond and third Pulp pump to mine, and the second cyclone group pumps pond and the third Pulp pump to mine
It is sequentially set on process orientation between the deslagging screen and the second spigot group, the second cyclone group pumps pond to mine
For receiving the slagging-off ore pulp of the deslagging screen, the third Pulp pump is used to revolve the slagging-off ore pulp from described second
Stream device group is pumped to the second cyclone group to mine pump pond.
11. a kind of gold grinding circuit gravity treatment recovery method, which comprises the steps of:
The ore discharge slurry of cyclone classification, semi-autogenous mill and the first centrifugal ore separator gravity tailings is revolved by the first cyclone group
Flow point grade obtains sand setting product and overflow product；
The sand setting product is selected one section by the first centrifugal ore separator again after ball mill ball milling by one section of Gold Concentrate under Normal Pressure gravity treatment
Gold Concentrate under Normal Pressure simultaneously obtains the first centrifugal ore separator gravity tailings, and the first centrifugal ore separator gravity tailings is back to described
One cyclone group；
The overflow product is selected two sections of Gold Concentrate under Normal Pressure, a Duan Jin by the second centrifugal ore separator by two sections of Gold Concentrate under Normal Pressure gravity treatments
Concentrate and two sections of Gold Concentrate under Normal Pressure enter subsequent Gold Concentrate under Normal Pressure treatment process after merging.
12. gold grinding circuit gravity treatment recovery method according to claim 11, which is characterized in that one section of Gold Concentrate under Normal Pressure weight
Selecting step includes that the processing of mine classifying screen is given in gravity treatment: by the sand setting product after ball mill ball milling, being classified by gravity treatment to mine
Sieve processing, obtains sieving lower ore pulp and selects one section of Gold Concentrate under Normal Pressure by first centrifugal ore separator again, obtain on-the-sieve material and be back to
The first cyclone group carries out cyclone classification.
13. gold grinding circuit gravity treatment recovery method according to claim 12, which is characterized in that walked in the cyclone classification
Before rapid: the ore discharge slurry of the semi-autogenous mill passes through the first Pulp pump and pumps from after flowing to the first cyclone group to mine pump pond
To the first cyclone group.
14. gold grinding circuit gravity treatment recovery method according to claim 13, which is characterized in that in the gravity treatment to mine point
In grade sieve treatment process, obtains on-the-sieve material and be back to the first cyclone group in mine pump pond.
15. gold grinding circuit gravity treatment recovery method according to claim 13, which is characterized in that first centrifugal separation
Machine gravity tailings is back to the first cyclone group in mine pump pond.
16. gold grinding circuit gravity treatment recovery method according to claim 12, which is characterized in that one section of Gold Concentrate under Normal Pressure weight
Selecting step further includes stirred tank buffering: ore pulp enters back into the first centrifugal ore separator after entering stirred tank stirring buffering under the sieve.
17. gold grinding circuit gravity treatment recovery method according to claim 16, which is characterized in that ore pulp enters under the sieve
Stirred tank specifically: ore pulp flow to the first centrifugal ore separator to mine classifying screen from the gravity treatment certainly and pumps in pond to mine under the sieve,
It is pumped in the stirred tank by the second Pulp pump again.
18. gold grinding circuit gravity treatment recovery method according to claim 17, which is characterized in that two sections of Gold Concentrate under Normal Pressure weights
Selecting step includes except Slag treatment: the overflow product being handled by deslagging screen, slagging-off ore pulp is obtained and enters back into the second centrifugation choosing
Mine machine.
19. gold grinding circuit gravity treatment recovery method according to claim 18, which is characterized in that two sections of Gold Concentrate under Normal Pressure weights
Selecting step further includes dehydration: the slagging-off ore pulp is dehydrated by the second cyclone group eddy flow, makes the dense of the slagging-off ore pulp
Degree enters back into second centrifugal ore separator after thickening.
20. gold grinding circuit gravity treatment recovery method according to claim 19, which is characterized in that the dehydration process steps
In, the solution that the effluent head overflow of the second cyclone group goes out enters in thickener after concentration, with second centrifugation
The tailing of ore separators discharge is combined into subsequent leaching process.
21. gold grinding circuit gravity treatment recovery method according to claim 19, which is characterized in that the slagging-off pulp gravity flow
After pumping pond to mine to the second cyclone group, it is pumped in the second cyclone group by third Pulp pump.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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