CN111068895A - Composite force ore dressing equipment - Google Patents
Composite force ore dressing equipment Download PDFInfo
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- CN111068895A CN111068895A CN202010003862.5A CN202010003862A CN111068895A CN 111068895 A CN111068895 A CN 111068895A CN 202010003862 A CN202010003862 A CN 202010003862A CN 111068895 A CN111068895 A CN 111068895A
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- 239000002131 composite material Substances 0.000 title claims abstract description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 46
- 239000011707 mineral Substances 0.000 abstract description 46
- 239000000463 material Substances 0.000 abstract description 21
- 239000002002 slurry Substances 0.000 description 41
- 239000002245 particle Substances 0.000 description 40
- 238000000926 separation method Methods 0.000 description 25
- 230000005484 gravity Effects 0.000 description 22
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 14
- 239000010931 gold Substances 0.000 description 14
- 229910052737 gold Inorganic materials 0.000 description 14
- 239000012141 concentrate Substances 0.000 description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 9
- 230000009467 reduction Effects 0.000 description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 229910052719 titanium Inorganic materials 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910001773 titanium mineral Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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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
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
- B03B5/66—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type of the hindered settling type
-
- 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
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
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- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The utility model provides a composite force ore dressing equipment, includes the rotary drum that is approximate taper, stretches into the inlet pipe in the rotary drum, the upper portion of rotary drum is the feeding zone, and its lower part is the sorting zone, the inner wall in sorting zone is equipped with annular bulge, be equipped with the central overflow pipe that is the cavity form in the rotary drum, one side on central overflow pipe upper portion is equipped with first export, the below of rotary drum is equipped with the second export, the rotary drum drives its rotation through the cavity pivot. The equipment can evacuate and sort the high-concentration material layer close to the inner wall of the rotary drum, and improve the useful mineral grade of the high-concentration material layer. The beneficiation enrichment ratio is improved to more than 20, which is more than ten times of that of the traditional centrifugal concentrator.
Description
Technical Field
The invention relates to mineral processing equipment, in particular to composite force mineral processing equipment.
Background
Gravity separation is a green and environment-friendly beneficiation method, but as the grade of minerals declines year by year and the types of minerals are complicated, fine grinding is required to be carried out on the ores, so that the particle size of part of useful mineral particles is smaller than 37 microns. This portion of the useful mineral cannot be efficiently beneficiated and is typically discharged into a tailings pond along with the mill tailings. Resulting in a loss of resources and a reduction in the economic efficiency of the mill.
At present, in the field of mineral separation, equipment such as a tin cloud shaking table, a centrifugal separator, a cyclone and the like are commonly used for classification and gravity separation of fine-particle minerals. Along with the reduction of mineral reserves and the reduction of grade, the requirement on the ore dressing recovery rate is higher and higher in order to fully utilize mineral resources.
Analysis of the reselection flow at many refineries has found that the loss of valuable minerals is primarily in the fine particle minerals, particularly those having a particle size of less than 19 microns. Has reached the limit of the various types of reselection devices available. The centrifugal separator can recover fine mineral with a particle size lower limit of about 5 microns because of the adjustable centrifugal force.
However, the following problems are common to the conventional centrifugal separator for fine mineral separation: the enrichment ratio is not high, and is generally only 2-3 (the content of the produced concentrate is only 2-3 times higher than the mineral content of the raw ore), and the batch operation can be carried out.
CN103394405B discloses a new horizontal centrifuge, which is a typical centrifugal concentrator in which the mineral rotates at high speed, and the ratio of centrifugal force to gravity is typically over 60 times. Under the action of centrifugal force, heavy materials are deposited on the inner wall of the centrifugal machine, and light materials are discharged. After a few minutes of operation, the feed is stopped and the concentrate deposited on the inner wall of the drum is then washed with high-pressure water. The working mode is intermittent and can not be operated continuously. In addition, because of the large centrifugal force, large-particle gangue particles and useful heavy minerals are deposited on the inner wall together, so that the beneficiation enrichment ratio is very low, and the grade of the produced concentrate is also very low, which is usually only 2 to 3 times higher than that of the raw ore.
CN201110126100.5 discloses a centrifugal concentrator, which comprises a centrifugal drum, a drum main shaft, an ore feeding device, an ore discharging device and an ore separating device, wherein the centrifugal drum is arranged on the drum main shaft through a positioning conical disc; the feeding device and the ore separating device are respectively connected with an air cylinder capable of swinging left and right and driven by the air cylinder; the ore unloading device is connected with a pneumatic flushing valve and is driven by the pneumatic flushing valve.
CN203556470U discloses an improved continuous centrifugal concentrator, which uses two centrifuge drums for switching, and is produced in a substantially batch manner.
The devices disclosed in the above patent documents have four common problems:
1. the beneficiation enrichment ratio is very low, and in a high-speed centrifugal force field, large-particle gangue particles and small-particle mineral particles obtain the same centrifugal acceleration and are deposited on the conical surface of the rotary drum together. While the conical surface of the conventional drum is smooth. The sedimentary deposit is difficult to evacuate and effectively separate, so that the beneficiation enrichment ratio is low and is only 2-3 generally; for low-grade tailings, the selected concentrate has low economic value and cannot cover the cost, so that the centrifugal separator cannot be effectively utilized in the field of fine-particle tailings separation;
2. intermittent ore discharge cannot be realized; a large amount of high-pressure cleaning water is consumed at the same time; because the settled layer is deposited on the conical surface of the rotary drum, a certain thickness is formed after a few minutes, the feeding is required to be stopped, and the rotary drum is cleaned by high-pressure water;
3. the centrifugal rotating speed is high, the energy consumption is large, and the operation cost and the maintenance cost are high;
4. mineral separation, inner wall cleaning and ore discharge are performed alternately, production efficiency is low, and management cost is high.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provide the composite force ore dressing equipment which can fully utilize centrifugal force, centripetal buoyancy and gravity, continuously discharge ore and has high ore dressing enrichment ratio.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a composite force ore dressing equipment, includes the rotary drum that is approximate taper, stretches into the inlet pipe in the rotary drum, the upper portion of rotary drum is the feeding zone, and its lower part is the sorting zone, the rotary drum is equipped with the annular arch at the inner wall of sorting zone, be equipped with central overflow pipe in the rotary drum, one side on central overflow pipe upper portion is equipped with first export, the below of rotary drum is equipped with the second export, the rotary drum drives its rotation through the cavity pivot.
Further, the height of each annular protrusion is 5-50 mm, preferably 8-40 mm, more preferably 10-20 mm, the distance between every two adjacent annular protrusions is 10-70 mm, preferably 30-60 mm, and more preferably 40-50 mm.
Research shows that under the condition of no annular bulge, high-density minerals and large-particle gangue are not easy to loosen and separate under the centrifugal force and the pushing action of subsequent slurry and spirally downwards along the inner wall of the drum of the smooth separation area until the high-density minerals and the large-particle gangue are discharged from the hollow rotating shaft. The arrangement of the annular bulges enables slurry to have the functions of blocking and dispersing the slurry layer in the process of downward spiral flowing of the inner wall of the separation zone rotary drum, so that gangue particles and mineral particles can be delaminated again according to density. The height of annular protrusion sets up, at first will be higher than smooth inner wall, and secondly, will be relevant with the thickness of the decurrent high density bed of material of separation zone spiral, generally set up to 5~50 mm. The height of the bulge is too low, the technical effect is not obvious, and if the height of the bulge is too high, the disturbance on the slurry is too large, and the turbulence is formed, but the effect is reduced. The height of the annular bulge is related to the density of the mineral, the larger the density of the useful mineral is, the more easily the useful mineral is settled to the inner wall of the separation area rotary drum when the material layer jumps at the bulge, and in this case, the height of the bulge can be increased by a little. Finally, the height of the annular bulge is directly related to the diameter of the separation area, the separation area is large, more slurry is added, the material layer thickness of the separation area is large, and the height of the bulge can be slightly higher. The height of the annular bulge on the inner wall of the rotary drum is generally set to be 5-50 mm, the height is generally preferably 8-40 mm, and the height is more preferably 10-20 mm. The connection between the annular bulge and the inner wall is smooth, and chamfering is adopted during processing, so that the bulge and the inner wall are in smooth transition. The interval between two adjacent annular bulges is too big, and the number of times of dispersion is few, and undersize easily forms the dead angle, consequently, generally sets up to 30~60mm, and the preferred interval is 40~50 mm.
Further, the rotary drum is fixed in the shell, a tailing external discharge port is arranged on one side of the shell, and a tailing discharge channel used for connecting the first outlet and the tailing external discharge port is arranged in the shell.
Furthermore, the shell is provided with a motor, and the motor is used for driving the hollow rotating shaft to rotate.
Furthermore, the bottom of the shell is provided with a support frame.
Further, the half cone angle of the sorting area is 10-60 degrees. If the angle of the half cone angle is too small, for example, less than 10 degrees, that is, the cone angle of the sorting area is very sharp, the length of the sorting area is too long, so that the equipment is very high, and the center of gravity is unstable; if the angle of the half cone angle is too large, for example, greater than 60 degrees, the length of the separation area is too short, and the separation distance of ore dressing is insufficient, so that the ore dressing effect is reduced. The half-cone angle is preferably 15 ° to 50 °, and more preferably 25 ° to 35 °.
Further, the cone-like rotary drum is replaced by a curve-shaped rotary drum; meanwhile, the curved inner wall of the curved drum sorting area is provided with an annular bulge.
Compared with the prior art, the invention has the following beneficial effects:
1. the sorting conical surface or the curved surface of the rotary drum is additionally provided with the annular bulge, so that a high-concentration material layer close to the inner wall of the rotary drum can be evacuated and sorted, and the useful mineral grade of the high-concentration material layer is improved; the beneficiation enrichment ratio can be improved to more than 20, which is ten times higher than that of the traditional centrifugal concentrator;
2. the annular bulge is matched with the zero-speed envelope surface, so that separated gangue is effectively removed;
3. the heavy minerals and the tailings are continuously discharged in the whole working process, and the operation is simple;
4. the gangue particles are gradually sorted on the sorting conical surface with the radius gradually reduced by utilizing the rule that the centrifugal force is reduced along with the radius, enter a zero-speed envelope surface and are discharged from a tailing outlet.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic structural view of example 2;
FIG. 4 is a schematic structural diagram of embodiment 3.
In the figure: 1. the device comprises a rotary drum, 101, a second outlet, 2, a feeding pipe, 3, a feeding area, 4, a sorting area, 5, a central overflow pipe, 501, a first outlet, 6, a hollow rotating shaft, 7, an annular bulge, 8, a motor, 9, a shell, 10, a supporting frame, 11, a tailing outer discharge port, 12 and a tailing discharge channel.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Example 1
As shown in fig. 1-2, the equipment comprises a nearly conical rotary drum 1 and a feeding pipe 2 extending into the rotary drum 1, wherein the upper part of the rotary drum 1 is a feeding area 3, the lower part of the rotary drum 1 is a sorting area 4, a central overflow pipe 5 is arranged in the rotary drum 1, a first outlet 501 is arranged on one side of the upper part of the central overflow pipe 5, a second outlet 101 is arranged below the rotary drum 1, the rotary drum 1 is driven to rotate by a hollow rotating shaft 6, and the second outlet 101 is communicated with the hollow rotating shaft 6.
A feeding area: when the device works, raw ore powder slurry is added from a feeding pipe 2 and enters a rotary drum 1 of mineral processing equipment; the rotary drum 1 rotates at a high speed to drive the ore pulp to rotate; the ore pulp rotates along with the rotary drum and is gradually accelerated to generate centrifugal force; mineral particles with high specific gravity and large-particle gangue particles approach the inner wall of the rotary drum 1 under the action of centrifugal force; from the inner wall of the rotating drum 1 to the rotating center, a slurry layer distributed in the axial direction is formed: the closer to the inner wall of the rotary drum 1, the higher the slurry concentration is, and the more the high-specific gravity mineral particles and large-particle gangue are distributed; controlling the rotation speed of the rotary drum 1 to enable the mineral particles to rotate around the drum wall without deposition; the slurry spirals down the drum wall under the force of gravity and the subsequent slurry.
And (4) sorting area: the inner diameter of the rotary drum 1 of the sorting area 4 is gradually reduced, and meanwhile, annular bulges 7 are arranged on two sides of the inner wall of the sorting area 4 of the rotary drum 1; meanwhile, the joint of the annular bulge 7 and the inner wall of the rotary drum 1 is chamfered, so that the descending slurry generates impact force along a smooth bulge curve. When the centrifugal separation device works, when slurry with a higher centrifugal speed in a downward spiral direction enters a separation region and flows through the annular bulge 7 of the separation region 4, a high-concentration material layer on the inner wall of the rotary drum 1 is subjected to tangential inertia leap along the outer edge of the annular bulge 7, but heavy minerals and part of large-particle gangue are close to the inner wall of the rotary drum again after leap and are newly divided into layers under the action of the blocking and rotating centrifugal force of outer-layer slurry; in the flying process, compared with heavy minerals and large-particle gangue in a high-concentration material layer, centripetal buoyancy force borne by the large-particle gangue is much larger than that borne by the heavy minerals, the flying distance of the gangue is longer, and part of the gangue enters a zero-speed envelope surface to obtain primary separation; the slurry is continuously screwed downwards, and the next loosening and sorting are finished at the next annular bulge 7; the gangue entering the zero-velocity envelope surface is discharged together with the upward flow from the first outlet 501 on the central overflow pipe 5 to form tailings.
In this embodiment, the rotary drum 1 is fixed in the housing 9, the bottom of the housing 9 is provided with the support frame 10, one side of the housing 9 is provided with the tailing discharging port 11, the tailing discharging port 11 and the first outlet 501 are located on the same side of the central overflow pipe 5, and the housing 9 is internally provided with the tailing discharging channel 12 for connecting the first outlet 501 and the tailing discharging port 11.
Raw ore slurry enters the rotary drum 1 from the feeding pipe 2, and the motor 8 drives the hollow rotary shaft 6 to rotate, so that the rotary drum 1 is driven to rotate, and the rotating speed is 100-1000 rpm; the slurry rotates in the rotary drum 1 to form normal particle size distribution, and the closer to the rotary drum 1, the more heavy minerals and large-particle gangue are; the slurry layer flows downwards to enter a separation area 4 under the action of the push and gravity of subsequent slurry; in the separation area 4, the radius is gradually reduced, the slurry is close to the material layer of the rotary drum 1, and the slurry generates inertia leap under the blocking action of the annular bulge 7, so that the material layer is loosened; as the slurry continues to flow downwardly, the radius of rotation continuously decreases, resulting in a gradual reduction in centrifugal force, gravity and buoyancy forces gradually playing an important role. At the critical radius, gravity and centrifugal force are equal. Below the critical radius, gravity and buoyancy begin to dominate; in particular, at the position of the annular bulge 7, after the material layer is loosened, the particles close to the rotary drum 1 are arranged again according to the density; the large-particle gangue on the outer layer gradually jumps into a zero-speed envelope surface and flows upwards under the pushing of slurry, so that the large-particle gangue enters a central overflow pipe 5 and is discharged to become tailings. The high density valuable minerals of the inner layer flow down the inner layer of the drum and are discharged from the second outlet 101 below the drum 1 to form product concentrate.
As the slurry flows downward, the radius of rotation r continues to decrease, according to the formula F = m ω2r, centrifugal force decreases gradually. Meanwhile, with the reduction of the downward rotating radius, the slurry with small concentration at the outer layer gradually enters the zero-speed envelope surface and is discharged from the discharge hole of the top overflow port 501, so that the concentration of the slurry close to the inner side of the rotary drum 1 is gradually improved, and the influence of buoyancy on gangue in the slurry at the inner layer is gradually increased.
The sorting principle is as follows: follow-up materialThe pulp rotating speed is increased, the pulp concentration close to the drum wall 1 is gradually increased, and the pulp density is increased. According to the buoyancy formula: fBuoyancy force=ρOre pulpgV
Centripetal buoyancy also increases with increasing slurry density. In the slurry layer near the drum wall 1, the gangue large particles acquire the same centrifugal force as the heavy minerals, and the gangue minerals have a much larger volume than the heavy minerals:
when the centrifugal force is the same, the volume ratio of the gangue to the mineral is as follows: vGangue stone=（VMineral substance*ρMineral substance）/ρGangue stone
For example, in the beneficiation of gold ore, the specific gravity of gold is 19.32, which is 7 times that of gangue compared to the specific gravity of gangue of 2.7. With the centrifuge of the present invention, the gangue particles have a volume 7 times larger than that of the gold particles if the gangue particles are to obtain the same centrifugal force as gold. Namely, the centripetal buoyancy force of the large-particle gangue is 7 times that of gold.
The centrifugal force is calculated by the formula F = m ω2r。
It can be seen that the centrifugal force is proportional to r, i.e. the closer to the centre of rotation the material is subjected to the smaller centrifugal force. When the high-density slurry layer jumps to the rotating center from the bulge on the inner wall of the rotary drum, the centrifugal force applied to the particles is rapidly reduced, and the change of the centripetal buoyancy is not large. Large gangue minerals with particles migrate to the centre a greater distance under the influence of greater buoyancy and are more likely to enter the zero velocity envelope than heavy minerals and exit the central overflow aperture 5 and the first outlet 501.
The slurry continues to descend, and as the radius of rotation r continues to decrease, when the centrifugal force and the gravity are equal: f = m ω2r1=mg
At the moment, the centrifugal force and the gravity are equal, the direction of the buoyancy force is not normal centripetal any more, but 45 degrees upwards, and the rotating radius at the moment is the critical radius r1. The downward flow is continued, the gravity and the buoyancy are started to play a leading role, so that a large amount of low-density and large-volume gangue flies from the annular bulge 7 on the inner wall of the rotary drum 1 to the outer layer of the slurry, enters gangue particles with a zero-speed envelope surface, moves upwards and is discharged from a first outlet 501 at the upper part of the central overflow pipe 5 to formAnd (4) tailings.
The minerals with high specific gravity continue to move downwards along the inner wall of the rotary drum 1 to be below a zero-speed envelope surface by virtue of large centrifugal inertia force, and are discharged together with the downward liquid flow from a second outlet 101 in the hollow rotary shaft 6 with a hollow lower part to form concentrate.
Application example 1: and the tailings of the gravity gold contain 0.7 g/ton gold. And starting a motor 8 of the composite force concentrating machine, controlling the rotating speed of the rotary drum 1 to 300 revolutions per minute, and after the equipment runs stably, conveying the gold tailing slurry with the concentration of 10% to the feeding pipe 2 by using a pump. And the gold tailings enter a feeding area 3 in the rotary drum 1, and in the feeding area 3, the gold tailings and the ore pulp rotate along with the rotary drum 1, so that the gold tailings and the ore pulp are accelerated gradually to generate centrifugal force. The pulp enters the separation zone 4 by rotating flow downwards under the push of the subsequent slurry. The height of the annular bulge 7 on the inner wall of the sorting area 4 is 40mm, the distance between two adjacent annular bulges 7 is 60mm, the sorting area is conical, and the half-cone angle is 20 degrees. The material layer is loosened under the disturbance of the annular bulge of the separation area 4. The centrifugal force is reduced along with the reduction of the rotating radius, when the gravity exceeds the centrifugal force again, the material layer is layered again according to the density, the high-density gold ore particles are close to the inner side of the rotary drum, the low-density gangue is distributed on the outer layer and at the position of the next annular bulge 7, the gangue jumps into the zero-speed enveloping surface and is discharged from the central overflow pipe 5. The gold ore flows downwards along the inner side of the sorting rotary drum 1 in a rotating mode, and flows out downwards from the middle of the middle idle shaft 6 to become concentrate, the gold content of the concentrate grade detection reaches 38 g/ton, and the enrichment ratio reaches more than 50 times.
Application example 2: and (3) reselecting the tailings of the tin, wherein the content of the tin is 0.2%. And starting a motor 8 of the composite force concentrating machine, controlling the rotating speed of the rotary drum 1 to be 500 rpm, and after the equipment runs stably, conveying the tin tailing slurry with the concentration of 15% to the feeding pipe 2 by using a pump. And the tin tailing slurry enters a feeding area 3 in the rotary drum 1, and in the feeding area 3, the tin tailing slurry rotates along with the rotary drum 1, is gradually accelerated and generates centrifugal force. The pulp enters the separation zone 4 by rotating flow downwards under the push of the subsequent slurry. The height of the annular bulge 7 on the inner wall of the sorting area 4 is 30 mm, the distance between two adjacent annular bulges 7 is 40mm, the sorting area 4 is conical, and the half-cone angle is 30 degrees. The material layer is loosened under the disturbance of the slurry in the annular bulge 7 of the sorting area 4. The centrifugal force is reduced along with the reduction of the rotating radius, when the gravity exceeds the centrifugal force again, the material layer is layered again according to the density, the high-density tin ore particles are close to the inner side of the rotary drum 1, the low-density gangue is distributed on the outer layer and at the position of the next annular bulge 7, the gangue jumps into the zero-speed envelope surface and is discharged from the central overflow pipe 5. The tin ore flows downwards along the inner side of the sorting rotary drum 1 in a rotating mode, flows out downwards from the middle of the middle idle shaft 6, becomes concentrate, the content of tin in the concentrate grade detection reaches 6.23%, and the enrichment ratio reaches more than 30 times.
Application example 3: tailings of the titanium reselection contain 2.3 percent of titanium dioxide. And starting a motor 8 of the composite force concentrator, controlling the rotating speed of the rotary drum 1 to 700 rpm, and after the equipment runs stably, conveying the titanium tailing slurry with the concentration of 20% to the feeding pipe 2 by using a pump. And the titanium tailings enter a feeding area 3 in the rotary drum 1, and in the feeding area 3, the titanium tailings and the ore pulp rotate along with the rotary drum 1, so that the titanium tailings and the ore pulp are accelerated gradually to generate centrifugal force. The pulp enters the separation zone 4 by rotating flow downwards under the push of the subsequent slurry. The height of the annular bulge 7 on the inner wall of the sorting area 4 is 20mm, the distance between two adjacent annular bulges 7 is 30 mm, the sorting area 4 is conical, and the half cone angle is 45 degrees. The material layer is loosened under the disturbance of the slurry in the annular bulge 7 of the sorting area 4. The centrifugal force is reduced along with the reduction of the rotating radius, when the gravity exceeds the centrifugal force again, the material layer is layered again according to the density, the high-density titanium ore particles are close to the inner side of the rotary drum, the low-density gangue is distributed on the outer layer and at the position of the next annular bulge 7, the gangue jumps into the zero-speed envelope surface and is discharged from the central overflow pipe 5. The titanium mineral flows downwards along the inner side of the sorting rotary drum 1 in a rotating mode, flows out downwards from the middle of the middle idle shaft 6, becomes concentrate, the content of titanium dioxide in the concentrate grade detection reaches 46.23%, and the enrichment ratio reaches more than 20 times.
Example 2
As shown in fig. 3, the feed zone may also be made with a taper.
The rest of the procedure is the same as in example 1
Example 3
The sorting zone can also be replaced by a curved rotating drum.
The rest of the procedure is the same as in example 2
Various modifications and variations of the present invention may be made by those skilled in the art, and they are also within the scope of the present invention provided they are within the scope of the claims of the present invention and their equivalents.
Claims (7)
1. The utility model provides a composite force ore dressing equipment, is including being the rotary drum of approximate taper, stretching into the inlet pipe in the rotary drum, its characterized in that: the upper portion of the rotary drum is a feeding area, the lower portion of the rotary drum is a sorting area, an annular bulge is arranged on the inner wall of the sorting area of the rotary drum, a central overflow pipe is arranged in the rotary drum, a first outlet is arranged on one side of the upper portion of the central overflow pipe, a second outlet is arranged below the rotary drum, and the rotary drum is driven to rotate through a hollow rotary shaft.
2. The composite force beneficiation plant according to claim 1, wherein: the height of the annular bulge is 5-50 mm, preferably 8-40 mm, and more preferably 10-20 mm; the distance between two adjacent annular bulges is 10-70 mm, preferably 30-60 mm, and more preferably 40-50 mm.
3. The composite force ore dressing equipment according to claim 1 or 2, characterized in that: the rotary drum is fixed in the shell, a tailing discharge port is formed in one side of the shell, and a tailing discharge channel used for connecting the first outlet and the tailing discharge port is formed in the shell.
4. The complex force beneficiation plant according to any one of claims 1 to 3, wherein: the shell is provided with a motor, and the motor is used for driving the hollow rotating shaft to rotate.
5. The complex force beneficiation plant according to any one of claims 1 to 4, wherein: the bottom of shell is equipped with the support frame.
6. The composite force beneficiation plant according to any one of claims 15, wherein: the half cone angle of the sorting region is 10-60 degrees, preferably 15-50 degrees, and further preferably 25-35 degrees.
7. A composite force beneficiation plant according to claim 1, wherein: the approximately conical rotary drum is replaced by a curved rotary drum; and annular bulges are arranged on the inner wall of the curved surface of the curved drum sorting area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010003862.5A CN111068895A (en) | 2020-01-03 | 2020-01-03 | Composite force ore dressing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010003862.5A CN111068895A (en) | 2020-01-03 | 2020-01-03 | Composite force ore dressing equipment |
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| CN111068895A true CN111068895A (en) | 2020-04-28 |
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| CN202010003862.5A Pending CN111068895A (en) | 2020-01-03 | 2020-01-03 | Composite force ore dressing equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632751A (en) * | 2020-05-21 | 2020-09-08 | 解付兵 | Improved composite force mineral processing equipment |
| RU208935U1 (en) * | 2021-10-13 | 2022-01-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | Cyclone |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA303762A (en) * | 1930-09-09 | D. Lewis Frank | Centrifugal concentrating and amalgamating apparatus of the vertical type | |
| CN2684934Y (en) * | 2004-01-13 | 2005-03-16 | 西南石油学院 | Hydraulic swirler with filtering net |
| CN202621314U (en) * | 2012-03-30 | 2012-12-26 | 李忠义 | Centrifugal ore screening machine |
| CN104437823A (en) * | 2013-09-16 | 2015-03-25 | 江苏迈安德智能装备有限公司 | Rotor of high-speed cone multi-stage separator |
| CN104998747A (en) * | 2015-07-30 | 2015-10-28 | 湖州市千金宝云机械铸件有限公司 | Centrifugal ore dressing device |
| CN107309069A (en) * | 2017-08-07 | 2017-11-03 | 解付兵 | Circular shaking table |
| CN211964553U (en) * | 2020-01-03 | 2020-11-20 | 解付兵 | Composite force ore dressing equipment |
-
2020
- 2020-01-03 CN CN202010003862.5A patent/CN111068895A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA303762A (en) * | 1930-09-09 | D. Lewis Frank | Centrifugal concentrating and amalgamating apparatus of the vertical type | |
| CN2684934Y (en) * | 2004-01-13 | 2005-03-16 | 西南石油学院 | Hydraulic swirler with filtering net |
| CN202621314U (en) * | 2012-03-30 | 2012-12-26 | 李忠义 | Centrifugal ore screening machine |
| CN104437823A (en) * | 2013-09-16 | 2015-03-25 | 江苏迈安德智能装备有限公司 | Rotor of high-speed cone multi-stage separator |
| CN104998747A (en) * | 2015-07-30 | 2015-10-28 | 湖州市千金宝云机械铸件有限公司 | Centrifugal ore dressing device |
| CN107309069A (en) * | 2017-08-07 | 2017-11-03 | 解付兵 | Circular shaking table |
| CN211964553U (en) * | 2020-01-03 | 2020-11-20 | 解付兵 | Composite force ore dressing equipment |
Non-Patent Citations (3)
| Title |
|---|
| 孙玉波;: "双锥度转鼓离心选矿机改善分选效果的理论分析", 金属矿山, no. 01, 31 December 1979 (1979-12-31), pages 42 - 47 * |
| 罗仙平;闵世珍;缪建成;: "离心选矿装备技术研究进展", 矿山机械, vol. 41, no. 09, 10 September 2013 (2013-09-10), pages 1 - 8 * |
| 胡永生: "离心选矿机转鼓锥度的研究", 有色金属(选矿部分), no. 06, 15 November 1982 (1982-11-15), pages 22 - 29 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111632751A (en) * | 2020-05-21 | 2020-09-08 | 解付兵 | Improved composite force mineral processing equipment |
| RU208935U1 (en) * | 2021-10-13 | 2022-01-24 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | Cyclone |
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