CN115121362B - Assembly line for extracting and separating mica and weak magnetic substance from tailings and process method - Google Patents
Assembly line for extracting and separating mica and weak magnetic substance from tailings and process method Download PDFInfo
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- CN115121362B CN115121362B CN202210743700.4A CN202210743700A CN115121362B CN 115121362 B CN115121362 B CN 115121362B CN 202210743700 A CN202210743700 A CN 202210743700A CN 115121362 B CN115121362 B CN 115121362B
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- 238000000034 method Methods 0.000 title claims abstract description 78
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 63
- 239000010445 mica Substances 0.000 title claims abstract description 56
- 229910052618 mica group Inorganic materials 0.000 title claims abstract description 56
- 230000008569 process Effects 0.000 title claims abstract description 39
- 239000000126 substance Substances 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 212
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 239000006148 magnetic separator Substances 0.000 claims abstract description 103
- 239000000696 magnetic material Substances 0.000 claims abstract description 93
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 36
- 239000004576 sand Substances 0.000 claims description 25
- 239000002245 particle Substances 0.000 claims description 24
- 238000000926 separation method Methods 0.000 claims description 22
- 229910052742 iron Inorganic materials 0.000 claims description 18
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 17
- 239000010937 tungsten Substances 0.000 claims description 17
- 229910052721 tungsten Inorganic materials 0.000 claims description 17
- 238000007599 discharging Methods 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 8
- 239000010419 fine particle Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 20
- 239000003638 chemical reducing agent Substances 0.000 description 17
- 230000003313 weakening effect Effects 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 11
- 239000010959 steel Substances 0.000 description 11
- 229910001145 Ferrotungsten Inorganic materials 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- AHIVCQLQCIBVOS-UHFFFAOYSA-N [Fe].[W] Chemical compound [Fe].[W] AHIVCQLQCIBVOS-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005188 flotation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000003302 ferromagnetic material Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003203 everyday effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000010433 feldspar Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- RHDUVDHGVHBHCL-UHFFFAOYSA-N niobium tantalum Chemical compound [Nb].[Ta] RHDUVDHGVHBHCL-UHFFFAOYSA-N 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
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
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- 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
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
-
- 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/107—Cores; Devices for inducing an air-core in hydrocyclones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention discloses a production line and a process method for extracting and separating mica and weak magnetic substances from tailings, wherein a feed bin is connected with a high-frequency material separating screen process, oversize substances and undersize substances of the high-frequency material separating screen are respectively connected with a water flow cyclone process through an ultrasonic cleaning chute, heavy material outlets of two water flow cyclones are respectively connected with two magnetic separator working processes, light material outlets of the two water flow cyclones are respectively connected with a third magnetic separator working process through a third ultrasonic cleaning chute, strong magnetic material outlets of the first two magnetic separators are respectively connected with two shaking table processes, a weak magnetic material outlet of the first magnetic separator is connected with the third water flow cyclone process, a strong magnetic material outlet of the third magnetic separator is connected with the third shaking table process, and a weak magnetic material outlet of the second magnetic separator is connected with a fourth water flow cyclone process. The method has the characteristics of capability of fully separating materials, high mica recovery rate and capability of fully utilizing tailings.
Description
Technical Field
The invention relates to the technical field of mineral processing technology and equipment, in particular to a production line and a process method for extracting and separating mica and weak magnetic substances from tailings.
Background
In the technology of separating or extracting mica and metal matters from mica ores and tailings with higher content or taste, such as kaolin, quartz, potash feldspar, tantalum-niobium ores, lithium-base ores, rare earth ores and tungsten ores, a pipeline is generally adopted. In the production line, a cyclone is adopted to classify according to granularity, and then a flotation method is used for recycling mica and metal matters.
The existing cyclone is added with a water-ore mixture mixed according to a certain proportion through an ultrasonic chute, the mixture entering the cyclone rotates in the cyclone under the action of water flow, lighter materials in the mixture overflow from an upper discharge hole which is level with the water surface under the action of centrifugal force, and heavier materials are deposited downwards under the influence of gravity and are more than the influence of the centrifugal force, and finally are discharged from a lower discharge hole. The cyclone has two discharge ports (an upper discharge port and a lower discharge port), and the water flow moves downwards by self weight to generate a downward suction force on the materials in the cyclone, so that more light materials are carried and discharged together, and the heavy materials contain more light materials, so that the materials are not thoroughly separated.
The flotation method requires that the materials are all subjected to flotation by adopting particles below 70 meshes, and specific liquid medicine (chemical reagent) is added; the mica extraction rate reaches 80% when the effect is optimal. However, at least 20% of mica and metal matters are also contained in the tailings produced by the method, and the tailings are not fully utilized.
Disclosure of Invention
Therefore, the invention provides a production line and a process method for extracting and separating mica and weakly magnetic substances from tailings, which are used for solving the technical problems that the existing production line and process method are not thorough in material separation, low in mica recovery rate and insufficient in tailings utilization.
In order to achieve the above object, the present invention provides the following technical solutions:
the first aspect of the invention provides a production line for extracting and separating mica and weak magnetic matters from tailings, which comprises a feed bin, a first ultrasonic cleaning chute, a second ultrasonic cleaning chute, a third ultrasonic cleaning chute, a first water flow cyclone, a second water flow cyclone, a third water flow cyclone, a fourth water flow cyclone, a first magnetic separator, a second magnetic separator, a third magnetic separator, a first shaking table, a second shaking table, a third shaking table and a rod mill, wherein an oversize matter outlet of the high-frequency separation sieve is connected with the first water flow cyclone through the first ultrasonic cleaning chute, an undersize matter outlet of the high-frequency separation sieve is connected with the second water flow cyclone through the second ultrasonic cleaning chute, a heavy matter outlet of the first water flow cyclone is connected with the first magnetic separator through the first ultrasonic cleaning chute, a heavy matter outlet of the second water flow cyclone is connected with the second magnetic separator through the second magnetic separator, a light matter outlet of the first water flow cyclone and the second magnetic separator is connected with the third shaking table through the third ultrasonic cleaning chute, a light matter outlet of the first water flow cyclone and a light matter outlet of the second magnetic separator is connected with the third shaking table through the third magnetic separator, a light matter outlet of the first water flow cyclone and a light magnetic separator is connected with the third magnetic separator through the first ultrasonic cleaning chute and a light magnetic separator.
Further, the bin is located on a working platform with the height of 6-9m, tailing sand is conveyed into the bin through the lifting device, and the rod mill is connected with the bin through the working procedure of the lifting device.
Further, the assembly line still includes first dewatering screen, second dewatering screen, collection filter vat and squeezer, and the clout export of first magnet separator links up with first dewatering screen process, and the clout export of second magnet separator links up with second dewatering screen process, and the clout export of third magnet separator links up with collection filter vat and squeezer process in proper order.
Further, the assembly line still includes host computer, touch-sensitive screen and PLC board, and the touch-sensitive screen is all connected with the host computer communication with PLC, and the host computer is connected with hoisting device, high frequency feed divider, each ultrasonic cleaning chute, each rivers swirler, each magnet separator, each shaking table, rod mill, squeezer electric control respectively.
Further, the water cyclone includes:
the side surface of the upper part of the barrel body is provided with a first feeding hole and a first discharging hole, and the lower part of the barrel body is provided with a second discharging hole;
the connecting rod is vertically arranged in the barrel body and can rotate around the axis of the connecting rod;
the first motor is in transmission connection with the connecting rod and can regulate and control the rotating speed of the connecting rod;
the paddle is arranged in the barrel body and is fixed at the lower end of the connecting rod, and when the connecting rod rotates, the paddle acts on water in the barrel body to enable materials in the water to be subjected to upward buoyancy;
the pipeline conveyer that the slope set up, its lower part is equipped with the second feed inlet, and its upper portion is equipped with the third discharge gate, second feed inlet and second discharge gate sealing connection, the height of third discharge gate is not less than the height of first discharge gate and/or first feed inlet.
Further, the water flow cyclone further comprises a first speed reducer, an input shaft of the first speed reducer is connected with a motor shaft of the first motor, and an output shaft of the first speed reducer is connected with the upper end of the connecting rod.
Further, the pipeline conveyor comprises a conveying pipeline, a second motor and a screw conveyor; the conveying pipeline is obliquely arranged, the lower part of the conveying pipeline is provided with a second feeding port, and the upper part of the conveying pipeline is provided with a third discharging port; the second motor is arranged at the upper end of the conveying pipeline; the screw conveyer is arranged along the length direction of the conveying pipeline, and the upper end of the screw conveyer is in transmission connection with the second motor.
Further, the pipeline conveyer further comprises a second speed reducer, the second speed reducer is fixed at the upper end of the conveying pipeline, the second motor is indirectly fixed with the conveying pipeline through the second speed reducer, an input shaft of the second speed reducer is connected with a motor shaft of the second motor, and an output shaft of the second speed reducer is connected with the upper end of the screw conveyer.
Further, the magnet separator includes first order strong magnetic roller, second level strong magnetic roller, third level strong magnetic roller and fourth level strong magnetic roller that segmentation set gradually from its feed inlet to other material export, is equipped with strong magnetic material under first order strong magnetic roller and collects the storehouse, and strong magnetic material collects the bottom in storehouse and is equipped with strong magnetic material export, is equipped with weak magnetic material collection storehouse in the bottom of second level strong magnetic roller, third level strong magnetic roller and fourth level strong magnetic roller, is equipped with weak magnetic material export in the bottom of weak magnetic material collection storehouse.
The second aspect of the invention provides a process for extracting and separating mica and weakly magnetic materials from tailings, which adopts the assembly line provided by the first aspect of the invention, and comprises the following steps:
lifting tailing materials below 5mm to a storage bin;
the tailing materials are mixed with water and then enter a high-frequency material dividing sieve to be separated into 5mm-20 mesh oversize products and undersize products below 20 meshes;
the oversize material and the undersize material respectively enter different ultrasonic cleaning chute to carry out ultrasonic cleaning and dispersion, so that fine particles and large particles are separated;
the cleaned and dispersed oversize materials and undersize materials respectively enter different water flow cyclones to separate light materials below 120 meshes from the rest heavy materials, the heavy materials respectively enter different magnetic separators, and the light materials enter a third magnetic separator after being ultrasonically cleaned and dispersed through a third ultrasonic cleaning chute;
the heavy materials on the screen are separated into strong magnetic materials, weak magnetic materials and residual materials in a magnetic separator; sorting out iron and tungsten from the strong magnetic material through a shaking table; the weak magnetic material enters a third water flow cyclone for separation, mica overflows from a light material outlet along with water, and the magnetic material is discharged from a heavy material outlet, enters a rod mill for crushing and returns to a stock bin; dehydrating the rest materials through a dewatering screen to form building sand;
the heavy materials of the undersize are separated into strong magnetic materials, weak magnetic materials and residual materials in a magnetic separator; sorting out iron and tungsten from the strong magnetic material through a shaking table; the weak magnetic material enters a fourth water flow cyclone for separation, mica overflows from a light material outlet along with water, and magnetic materials are discharged from a heavy material outlet; dehydrating the rest materials through a dewatering screen to form fine sand;
the light materials of the oversize materials and the undersize materials are separated into strong magnetic materials, weak magnetic materials and residual materials in a third magnetic separator; sorting out iron and tungsten from the strong magnetic material through a shaking table; the weak magnetic material enters a fourth water flow cyclone for separation, mica overflows from a light material outlet along with water, and magnetic materials are discharged from a heavy material outlet; the residual materials are treated by a filter drum and a squeezer in sequence to form tail mud.
The invention has the following advantages:
the coarse materials are screened and primarily separated by utilizing high-frequency powder materials (20 meshes are used as boundary points), the coarse materials are separated in a first water flow cyclone after being cleaned and dispersed by ultrasonic waves, the fine materials with more than 120 meshes are sent into a first magnetic separator after being cleaned and dispersed by ultrasonic waves, the fine materials with more than 120 meshes are sent into a second magnetic separator, the materials with less than 120 meshes selected by the first water flow cyclone and the second water flow cyclone are sent into a third magnetic separator after being cleaned and dispersed by ultrasonic waves again, and at the moment, the tailings sand is separated into three parts (respectively enter three magnetic separators) through the separation of the first water flow cyclone and the second water flow cyclone, so as to lay a foundation for extracting and separating mica, weak magnetic matters and other substances from the tailings sand; the water flow cyclone (comprising the first water flow cyclone, the second water flow cyclone and the third water flow cyclone and the fourth water flow cyclone) has better separation effect than the prior cyclone, and does not need to use medicine water for floatation, so as to lay a foundation for solving the problem that the materials of the traditional assembly line and the process method are not thoroughly separated (the follow-up magnetic separator is matched, and the problem of incomplete separation is jointly solved); the materials are separated into three parts in the magnetic separator, the first magnetic separator is used for separating out construction sand (needing to be dehydrated through a dewatering screen), a tungsten-iron mixture (belonging to strong magnetic materials, tungsten and iron are separated out through a shaking table), a mica and other magnetic mixtures (belonging to weak magnetic materials, mica and magnetic materials with larger particles are separated out through a third water flow cyclone, the magnetic materials with larger particles are ground into fine particles through a rod mill and then conveyed into a storage bin through a lifting device), the second magnetic separator is used for separating out fine sand (needing to be dehydrated through a dewatering screen), the tungsten-iron mixture, the mica and other magnetic mixtures, and the third magnetic separator is used for separating out tail mud (removing water through a filter drum and a squeezer), the tungsten-iron mixture, the mica and other magnetic mixtures. The mica and other magnetic mixtures separated by the second magnetic separator and the third magnetic separator pass through a fourth water flow cyclone to separate mica with smaller particles and lighter particles and magnetic substances with larger particles and heavier particles; the extraction rate of the mica, the weak magnetic substances and sand (including tail mud) can reach 99.5% by matching the four water flow cyclones and the three magnetic separators, and the method is far superior to the existing production line and process method. In addition, the whole process adopts circulating water, only water brought by sand materials is supplemented every day, and the water-saving performance is good; the high-level fall is adopted to enable the water belt animal materials to run (the bin is built at a high position), so that the energy consumption is saved, and the carbon emission reaches the standard; the intelligent degree is higher, does benefit to realizing automated production, and production efficiency is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those skilled in the art from this disclosure that the drawings described below are merely exemplary and that other embodiments may be derived from the drawings provided without undue effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the invention, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present invention, should fall within the scope of the invention.
FIG. 1 is a schematic diagram of a pipeline for extracting and separating mica and weakly magnetic materials from tailings according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a water cyclone of a pipeline according to an embodiment of the present invention;
FIG. 3 is a schematic top view of a portion of a water cyclone of a pipeline according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a magnetic separator of a pipeline according to an embodiment of the present invention.
In the figure: 1-bin, 2-high frequency separating screen, 3-first ultrasonic cleaning chute, 4-second ultrasonic cleaning chute, 5-first water flow cyclone, 6-second water flow cyclone, 7-third ultrasonic cleaning chute, 8-first magnetic separator, 9-second magnetic separator, 10-third magnetic separator, 11-first dewatering screen, 12-first shaking table, 13-second dewatering screen, 14-second shaking table, 15-third shaking table, 16-collecting and filtering barrel, 17-third water flow cyclone, 18-fourth water flow cyclone, 19-rod mill, 20-squeezer and 21-lifting device;
101-a first motor, 102-a first speed reducer, 103-channel steel, 104-a connecting rod, 105-a barrel body, 106-a blade, 107-a second discharge port, 108-a flange, 109-a second feed port, 110-a conveying pipeline, 111-a screw conveyor, 112-a third discharge port, 113-a second speed reducer, 114-a second motor, 115-a first feed port and 116-a first discharge port;
201-first-stage weak magnetic roller, 202-second-stage strong magnetic roller, 203-third-stage strong magnetic roller, 204-fourth-stage strong magnetic roller, 205-strong magnetic material collection bin, 206-strong magnetic material outlet, 207-weak magnetic material collection bin, 208-weak magnetic material outlet and 209-residual material outlet.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms such as "upper", "lower", "left", "right", "middle" and the like are also used in the present specification for convenience of description, but are not intended to limit the scope of the present invention, and the changes or modifications of the relative relationship thereof are considered to be within the scope of the present invention without substantial modification of the technical content.
As shown in fig. 1 to 4, example 1 provides a flow line for extracting and separating mica and weakly magnetic substances from tailings, comprising a silo 1, a high-frequency separating screen 2, three ultrasonic cleaning trays (a first ultrasonic cleaning tray 3, a second ultrasonic cleaning tray 4, a third ultrasonic cleaning tray 7), four hydrocyclones (a first hydrocyclone 5, a second hydrocyclone 6, a third hydrocyclone 17, a fourth hydrocyclone 18), three magnetic separators (a first magnetic separator, a second magnetic separator, a third magnetic separator), three shaking tables (a first shaking table 12, a second shaking table 14, a third shaking table 15), a rod mill 19, a lifting device 21, two dewatering screens (a first dewatering screen 11, a second dewatering screen 13), a collecting filter drum 16, and a squeezer 20.
The bin 1 (also called a transfer bin) is built at a high place, generally on a working platform with the height of 6-9m, and tailings materials (also called tailings sand or tailings) are lifted into the bin 1 by a lifting device 21. The tailings in this example have a particle size of 5mm or less.
The working procedure of the bin 1 and the working procedure of the high-frequency material dividing screen 2 are connected. The materials in the storage bin 1 are provided with a certain amount, and the materials are discharged into the high-frequency material-dividing screen 2 after being added with water. When the high-frequency material separating screen 2 works, most of materials with granularity smaller than that of the screen holes fall under the screen, but a part of materials with small granularity still remain on the screen. The sieve mesh size of the high-frequency material-dividing sieve 2 in the embodiment is 20 meshes, so that the granularity of the oversize material is 5mm-20 meshes, and a small amount of materials below 20 meshes are mixed; the undersize is a material below 20 meshes.
The oversize outlet of the high-frequency material separating screen 2 is connected with the working procedure of the first water flow cyclone 5 through the first ultrasonic cleaning chute 3, and the undersize outlet of the high-frequency material separating screen 2 is connected with the working procedure of the second water flow cyclone 6 through the second ultrasonic cleaning chute 4. The ultrasonic cleaning launder can carry out ultrasonic cleaning to the material, makes tiny granule and macroparticle separation. The ultrasonic cleaning launder is also the slope setting, and the one end that is connected with high frequency feed divider 2 is higher than the one end that is connected with the rivers swirler, so utilizes the impact of fall and rivers, and the material is transferred, is washd simultaneously. At the end of the ultrasonic cleaning chute (the end connected with the water flow cyclone), the granular materials are fully separated and are in a state of being paved and flowing downwards.
The water cyclone includes a bracket, a first motor 101, a first decelerator 102, a tub 105, a connecting rod 104, a paddle 106, a conveying pipe 110, an auger 111, a second decelerator 113, and a second motor 114. The bracket is used for connecting the structures or devices except the bracket into a whole, and is provided with a channel steel 103, and the channel steel 103 transversely spans over the barrel body 105 and is used for installing the first motor 101 and the first speed reducer 102. The first motor 101 adopts a frequency modulation and speed regulation motor, is arranged on the channel steel 103, and can be directly fixedly connected with the channel steel 103 or indirectly connected with the channel steel 103. The first decelerator 102 is installed on the channel steel 103, and can be directly fixedly connected with the channel steel 103 or indirectly connected with the channel steel 103. In the present embodiment, the first decelerator 102 is fixedly connected to the channel steel 103, and the first motor 101 is fixedly connected to the first decelerator 102, thereby being indirectly connected to the channel steel 103 through the first decelerator 102. The motor shaft of the first motor 101 is connected to the input shaft of the first reduction gear 102, for example, by a coupling. The output shaft of the first decelerator 102 faces the tub 105; typically, the output shaft is collinear with the axis of rotation of the bowl 105. The tub 105 has a certain volume and the tub wall has a certain strength. The upper section of the barrel 105 is cylindrical, the materials mixed with water are separated, meanwhile, the blades 106 are arranged on the barrel, and the buoyancy generated by the blades 106 supports the light materials upwards; the lower section is funnel-shaped and collects the deposited heavy materials. The side surface of the upper part of the barrel body 105 is provided with a first feeding hole 115 and a first discharging hole 116, and the lower part is provided with a second discharging hole 107; the first feed inlet 115 is connected with an ultrasonic chute of the assembly line; the first discharge hole 116 is positioned at the opposite side of the first feed hole 115, one end of the first discharge hole 116, which is close to the barrel body 105, is duckbill-shaped, and the other end is a necking structure, and is used for discharging water and light materials in the water; the second outlet 107 is for discharging the deposited heavy material. The connecting rod 104 is a vertical rotating shaft, is arranged in the barrel body and is collinear with the axis of the barrel body 105, and the upper end of the connecting rod is connected with the output shaft of the first speed reducer 102 and is driven by the first motor 101 to rotate around the axis of the first speed reducer. A plurality of paddles 106 are mounted at the lower end, and the plurality of paddles 106 are evenly distributed around the circumference of the connecting rod 104. The blades 106, like fans or propellers, act upon the water after rotation to cause the water to surge upward, thereby imparting upward buoyancy to the material in the water (meaning the resultant of the water buoyancy experienced by the material and the fluid forces of the water surging upward). The conveying pipe 110, the screw conveyor 111, the second reduction gear 113, and the second motor 114 constitute a obliquely arranged pipe conveyor. The conveying pipeline 110 is obliquely arranged, the lower part of the conveying pipeline is provided with a second feeding port 109, the upper part of the conveying pipeline is provided with a third discharging port 112, and the height of the third discharging port 112 is not lower than the height of the first discharging port 116 and/or the first feeding port 115, so that the second discharging port 107 at the bottom of the barrel body 105 is prevented from generating suction force on water in the barrel; the second discharge hole 107 is arranged downwards, the second feeding hole 109 is arranged upwards, and the second feeding hole 109 is in sealing connection with the second discharge hole 107 through a flange 108. The screw conveyor 111 is disposed along the length direction of the conveying pipe 110, and its upper end is in driving connection with the second motor 114. The second speed reducer 113 is fixed at the upper end of the conveying pipeline 110, and the second motor 114 is indirectly fixed with the conveying pipeline 110 through the second speed reducer 113; an input shaft of the second speed reducer 113 is connected with a motor shaft of the second motor 114, and an output shaft of the second speed reducer 113 is connected with the upper end of the screw conveyor 111; the second motor 114 also employs a fm motor. The material enters the barrel 105 at a certain flow rate, and the water flow direction in the barrel is provided with only one water outlet (namely a first discharge port 116, the height of a second discharge port 107 is not higher than that of a third discharge port 112, so that the second discharge port 107 does not freely leak water to form suction force on the material like a lower discharge port in the prior art, the second discharge port 107 is used for realizing the transfer of heavy materials under the action of a pipeline conveyer), and the light materials are discharged from the first discharge port 116 along with water to enter the next processing procedure due to the buoyancy generated by the paddle 106; the rotation speed of the blade 106 is controlled by the first motor 101, and after the first motor 101 carries out variable frequency speed regulation, the buoyancy generated by the blade 106 can be regulated, so that the specific gravity range of materials can be selected within a certain range (the heavy weight and the light weight are relatively speaking, the faster the rotation speed of the blade 106, the larger the buoyancy, the more so-called light weight materials are); heavy materials are deposited at the bottom of the tub 105 and transferred out by the pipe conveyor, so that light and heavy materials are output from different directions. On one hand, the first motor 101 is adopted to drive the paddle 106 to generate buoyancy, and the second discharge hole 107 does not generate suction, so that light materials and heavy materials are separated efficiently, and the separation is more thorough; on the other hand, the rotation speed of the blade 106 is adjustable, so that a certain range of specific gravity materials can be discharged from the first discharge port 116 as light materials, and the rest materials can be discharged from the second discharge port 107 as heavy materials, thereby achieving the effect of selective separation (different water flow cyclones identify the light materials and the heavy materials differently, and the rotation speed of the blade 10 is determined).
The magnetic separator is an improvement on automatic iron removal equipment (CN202120579125. X), four magnetic rollers of the automatic iron removal equipment are replaced by a weak magnetic roller and three strong magnetic rollers, and a separation bin is divided into two collection bins; specifically, a first-stage magnetic field weakening roller 201, a second-stage magnetic field weakening roller 202, a third-stage magnetic field weakening roller 203 and a fourth-stage magnetic field weakening roller 204 are sequentially arranged from a feed inlet to a rest material outlet 209, a magnetic field weakening material collecting bin 205 is arranged under the first-stage magnetic field weakening roller 201, a magnetic field weakening material outlet 207 is arranged at the bottom of the magnetic field weakening material collecting bin 205, a magnetic field weakening material collecting bin 206 is arranged at the bottoms of the second-stage magnetic field weakening roller 202, the third-stage magnetic field weakening roller 203 and the fourth-stage magnetic field weakening roller 204, and a magnetic field weakening material outlet 208 is arranged at the bottom of the magnetic field weakening material collecting bin 206. Firstly, separating out strong magnetic materials such as tungsten, iron and the like through a first-stage weak magnetic roller; and separating weak magnetic substances such as mica and the like through the rest three stages of strong magnetic rollers. The heavy material outlet of the first water flow cyclone 5 is connected with the working procedure of the first magnetic separator 8, the heavy material outlet of the second water flow cyclone 6 is connected with the working procedure of the second magnetic separator 9, and the light material outlets of the first water flow cyclone 5 and the second water flow cyclone 6 are connected with the working procedure of the third magnetic separator 10 through the third ultrasonic cleaning chute 7; wherein the strength of the light material is smaller, and the light material is particles below 120 meshes.
The strong magnetic material outlet of the first magnetic separator 8 is connected with the first shaking table 12 procedure, and the ferrotungsten mixture is separated into iron and tungsten after entering the shaking table from the outlet; the weak magnetic material outlet of the first magnetic separator 8 is connected with the working procedure of the third water flow cyclone 17, weak magnetic materials such as mica at the outlet are separated in the third water flow cyclone 17, and light materials (such as mica with smaller particles) overflow along with water from the light material outlet of the third water flow cyclone 17; the heavy material outlet of the third water flow cyclone 17 is connected with the working procedure of the rod mill 19, the heavy material (such as other weak magnetic materials except mica, and particles larger than mica) enters the rod mill 19 after coming out of the outlet, the heavy material is finely ground in the rod mill 19, the rod mill 19 is connected with the working procedure of the storage bin 1, and the finely ground material is sent into the lifting device 21 to return to the storage bin 1 for the next round or multiple rounds of sorting circulation; the residual material outlet of the first magnetic separator 8 is connected with the first dewatering screen 11, the material separated from the strong magnetic material and the weak magnetic material is called residual material, and the residual material enters the dewatering screen for dewatering, and the residual material is dewatered to form standard building sand below 5mm due to the fact that the granularity of the material in the first magnetic separator 8 is larger (5 mm-20 meshes).
The strong magnetic material outlet of the second magnetic separator 9 is connected with the working procedure of the second shaking table 14, and the tungsten-iron mixture is separated into iron and tungsten after entering the shaking table from the outlet; the procedure of the weak magnetic material outlet of the second magnetic separator 9 is connected with the procedure of the fourth water flow cyclone 18, weak magnetic materials such as mica and the like at the outlet are separated in the fourth water flow cyclone 18, light materials (such as mica with smaller particles) overflow along with water from the light material outlet of the fourth water flow cyclone 18, and heavy materials (such as other weak magnetic materials except mica and larger particles) are discharged from the heavy material outlet of the fourth water flow cyclone 18; the procedure of the second dewatering screen 13 is connected with the residue outlet of the second magnetic separator 9, the residue granularity of the outlet is finer, and fine sand is formed after dewatering.
The strong magnetic material outlet of the third magnetic separator 10 is connected with the procedure of a third shaking table 15, and the ferrotungsten mixture is separated into iron and tungsten after entering the shaking table from the outlet; the weak magnetic material outlet of the third magnetic separator 10 is connected with the working procedure of the fourth water flow cyclone 18, weak magnetic materials such as mica and the like at the outlet are separated in the fourth water flow cyclone 18, light materials (such as mica with smaller particles) overflow along with water from the light material outlet of the fourth water flow cyclone 18, and heavy materials (such as other weak magnetic materials except mica and larger particles) are discharged from the heavy material outlet of the fourth water flow cyclone 18; the residue outlet of the third magnetic separator 10 is sequentially connected with the working procedures of the filter collecting barrel 16 and the squeezer 20, the granularity of the material at the outlet is finer (because the material entering the third magnetic separator 10 is below 120 meshes), the residue enters the filter collecting barrel 16 to be settled, and the residue is pumped into the squeezer 20 through a plunger pump to squeeze out tail mud.
The mica, the weak magnetic matters, the tungsten and the iron in the tailings are extracted and separated, and the rest matters are divided into construction sand, fine sand and tail mud according to the granularity.
The coarse materials are screened and primarily separated by utilizing high-frequency powder materials (20 meshes are used as demarcation points), the coarse materials are separated in a first water flow cyclone 5 after being cleaned and dispersed by ultrasonic waves, the fine materials with more than 120 meshes are sent into a first magnetic separator 8, the fine materials are separated in a second water flow cyclone 6 after being cleaned and dispersed by ultrasonic waves, the materials with more than 120 meshes are sent into the second magnetic separator 9, materials with less than 120 meshes selected by the first water flow cyclone 5 and the second water flow cyclone 6 are sent into a third magnetic separator 10 after being cleaned and dispersed by ultrasonic waves again, and at the moment, tailings sand is separated into three parts (respectively enter three magnetic separators) through the separation of the first water flow cyclone 5 and the second water flow cyclone 6, so as to lay a foundation for extracting and separating mica, weak magnetic matters and other substances from the tailings sand; the water flow cyclones (comprising the first water flow cyclone 5, the second water flow cyclone 6, the third water flow cyclone 17 and the fourth water flow cyclone 18) are better than the existing cyclones in separation effect, and the flotation is carried out without using medicine water, so that a foundation is laid for solving the problem that the materials are not thoroughly separated in the traditional assembly line and process method (the follow-up is matched with a magnetic separator to jointly solve the problem of incomplete separation); the materials are separated into three parts in the magnetic separator, the first magnetic separator 8 is used for separating out building sand (needing to be dehydrated through a dewatering screen), a ferrotungsten mixture (which belongs to strong magnetic materials and is used for separating out tungsten and iron through a shaking table), a mica and other magnetic mixtures (which belongs to weak magnetic materials, mica and magnetic materials with larger particles are separated out through a third water flow cyclone 17, the magnetic materials with larger particles are ground into fine particles through a rod mill 19 and then are conveyed into a storage bin 1 through a lifting device 21), the second magnetic separator 9 is used for separating out fine sand (needing to be dehydrated through a dewatering screen), the ferrotungsten mixture, the mica and other magnetic mixtures, and the third magnetic separator 10 is used for separating out tail mud (removing water through a filter drum 16 and a squeezer 20), the ferrotungsten mixture, the mica and other magnetic mixtures. The mica and other magnetic mixtures separated by the second magnetic separator 9 and the third magnetic separator 10 pass through a fourth water flow cyclone 18 to separate mica with smaller particles and lighter particles and magnetic substances with larger particles and heavier particles; the extraction rate of the mica, the weak magnetic substances and sand (including tail mud) can reach 99.5% by matching the four water flow cyclones and the three magnetic separators, and the method is far superior to the existing production line and process method. In addition, the whole process adopts circulating water, only water brought by sand materials is supplemented every day, and the water-saving performance is good; the high-level fall is adopted to enable the water belt animal materials to run (the storage bin 1 is built at a high position), so that the energy consumption is saved, and the carbon emission reaches the standard; the intelligent degree is higher, does benefit to realizing automated production, and production efficiency is high.
The assembly line is also provided with an automatic control system, and aims to form a full-automatic or semi-automatic assembly line, and the full-automatic or semi-automatic assembly line comprises an upper computer, a touch screen and a PLC (programmable logic controller), wherein the touch screen and the PLC are all in communication connection with the upper computer, and the upper computer is respectively and electrically connected with a lifting device 21, a high-frequency material separating screen 2, an ultrasonic cleaning chute, a water flow cyclone, a magnetic separator, a shaking table, a rod mill 19 and a squeezer 20; the system is also provided with a sensor, a data acquisition unit, a camera, a monitor and the like, and the sensor, the data acquisition unit, the camera and the monitor are all in communication connection with the upper computer. Such automatic control is of the prior art and will not be described in detail.
Example 2 provides a process for extracting and separating mica and weakly magnetic materials from tailings, which employs the flow line (refer to fig. 1) as provided in example 1, comprising the steps of:
the tailings materials with the thickness of less than 5mm are lifted to the stock bin 1 built on the 6-9m high working platform by the lifting device 21.
The tailing materials and water are mixed according to the ratio of 1:1-1:1.5 and then enter a high-frequency material dividing screen 2 to be divided into 5mm-20 mesh oversize products and 20 mesh undersize products.
The oversize material and the undersize material respectively enter different ultrasonic cleaning chute to carry out ultrasonic cleaning and dispersion, so that fine particles and large particles are separated. Typically, the oversize product enters the first ultrasonic cleaning chute 3 and the undersize product enters the second ultrasonic cleaning chute 4.
The cleaned and dispersed oversize materials and undersize materials respectively enter different water flow cyclones to separate light materials below 120 meshes from the rest heavy materials, the heavy materials respectively enter different magnetic separators, and the light materials enter a third magnetic separator after being ultrasonically cleaned and dispersed through a third ultrasonic cleaning chute. Typically, the oversize material enters the first water flow cyclone 5, the undersize material enters the second water flow cyclone 6, the screen material is checked to be less than 120 meshes in the first water flow cyclone 5 and the second water flow cyclone 6, and the screen material is sent into the third ultrasonic cleaning chute 7 and then enters the third magnetic separator 10; heavy materials deposited in the first water flow cyclone 5 are discharged and then enter the first magnetic separator 8; the heavy materials deposited in the second hydrocyclone 6 are discharged and enter the second magnetic separator 9.
The heavy materials on the screen are separated into strong magnetic materials, weak magnetic materials and residual materials in a first magnetic separator 8; the ferromagnetic materials are separated into iron and tungsten through a first shaking table 12; the weak magnetic materials enter a third water flow cyclone 17 for separation, mica overflows from a light material outlet along with water, and magnetic materials are discharged from a heavy material outlet, enter a rod mill 19 for crushing and then return to the stock bin 1 through a lifting device 21; the rest materials are dehydrated by a first dewatering screen 11 to form the sand for construction.
The heavy materials of the undersize are separated into strong magnetic materials, weak magnetic materials and residual materials in a second magnetic separator 9; the ferromagnetic material is separated into iron and tungsten by a second shaking table 14; the weak magnetic materials enter a fourth water flow cyclone 18 for separation, mica overflows from a light material outlet along with water, and magnetic materials are discharged from a heavy material outlet; the rest materials are dehydrated by a second dewatering screen 13 to form fine sand;
the light materials of the oversize materials and the undersize materials are separated into strong magnetic materials, weak magnetic materials and residual materials in the third magnetic separator 10; the ferromagnetic material is separated into iron and tungsten by a third shaking table 15; the weak magnetic materials enter a fourth water flow cyclone 18 for separation, mica overflows from a light material outlet along with water, and magnetic materials are discharged from a heavy material outlet; the residual materials are processed by the collecting and filtering barrel 16 and the squeezer 20 in sequence to form tail mud.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (10)
1. A production line for extracting and separating mica and weakly magnetic substances from tailings, which is characterized by comprising a stock bin, a high-frequency material separating screen, an ultrasonic cleaning chute, a water flow cyclone, a magnetic separator, a shaking table and a rod mill, wherein the ultrasonic cleaning chute comprises a first ultrasonic cleaning chute, a second ultrasonic cleaning chute and a third ultrasonic cleaning chute, the water flow cyclone comprises a first water flow cyclone, a second water flow cyclone, a third water flow cyclone and a fourth water flow cyclone, the magnetic separator comprises a first magnetic separator, a second magnetic separator and a third magnetic separator, and the shaking table comprises a first shaking table, a second shaking table and a third shaking table; the feed bin is connected with a high-frequency material separating sieve process, the oversize material outlet of the high-frequency material separating sieve is connected with a first water flow cyclone process through a first ultrasonic cleaning chute, the undersize material outlet of the high-frequency material separating sieve is connected with a second water flow cyclone process through a second ultrasonic cleaning chute, the heaviness material outlet of the first water flow cyclone is connected with a first magnetic separator process, the heaviness material outlet of the second water flow cyclone is connected with a second magnetic separator process, the light material outlets of the first water flow cyclone and the second water flow cyclone are connected with a third magnetic separator process through a third ultrasonic cleaning chute, the strong magnetic material outlet of the first magnetic separator is connected with a first shaking table process, the weak magnetic material outlet of the first magnetic separator is connected with a third water flow cyclone process, the heaviness material outlet of the third water flow cyclone is connected with a rod mill process, the strong magnetic material outlet of the second magnetic separator is connected with a second shaking table process, the strong magnetic material outlet of the third magnetic separator is connected with a third shaking table process, and the weak magnetic separator of the third magnetic separator is connected with a fourth water flow cyclone process.
2. The assembly line of claim 1, wherein the bin is located on a 6-9m high work platform, tailings sand is transported to the bin by a lifting device, and a rod mill is also engaged with the bin by the lifting device.
3. The line of claim 1 or 2, further comprising a dewatering screen, a collection drum, and a press, wherein the dewatering screen comprises a first dewatering screen and a second dewatering screen; the residue outlet of the first magnetic separator is connected with the first dewatering screen procedure, the residue outlet of the second magnetic separator is connected with the second dewatering screen procedure, and the residue outlet of the third magnetic separator is sequentially connected with the collecting and filtering barrel and the squeezer procedure.
4. The assembly line of claim 3, further comprising an upper computer, a touch screen and a PLC (programmable logic controller), wherein the touch screen and the PLC are in communication connection with the upper computer, and the upper computer is in electric control connection with the lifting device, the high-frequency material dividing screen, the ultrasonic cleaning chute, the water flow cyclone, the magnetic separator, the shaking table, the rod mill and the squeezer respectively.
5. The flow line of claim 1, wherein the hydrocyclone comprises:
the side surface of the upper part of the barrel body is provided with a first feeding hole and a first discharging hole, and the lower part of the barrel body is provided with a second discharging hole;
the connecting rod is vertically arranged in the barrel body and can rotate around the axis of the connecting rod;
the first motor is in transmission connection with the connecting rod and can regulate and control the rotating speed of the connecting rod;
the paddle is arranged in the barrel body and is fixed at the lower end of the connecting rod, and when the connecting rod rotates, the paddle acts on water in the barrel body to enable materials in the water to be subjected to upward buoyancy;
the pipeline conveyer that the slope set up, its lower part is equipped with the second feed inlet, and its upper portion is equipped with the third discharge gate, second feed inlet and second discharge gate sealing connection, the height of third discharge gate is not less than the height of first discharge gate and/or first feed inlet.
6. The assembly line of claim 5, wherein the hydrocyclone further comprises a first decelerator having an input shaft coupled to a motor shaft of the first motor and an output shaft coupled to an upper end of the connecting rod.
7. The assembly line of claim 5, wherein the pipe conveyor comprises a conveyor pipe, a second motor, and a screw conveyor; the conveying pipeline is obliquely arranged, the lower part of the conveying pipeline is provided with a second feeding port, and the upper part of the conveying pipeline is provided with a third discharging port; the second motor is arranged at the upper end of the conveying pipeline; the screw conveyer is arranged along the length direction of the conveying pipeline, and the upper end of the screw conveyer is in transmission connection with the second motor.
8. The assembly line of claim 7, wherein the pipe conveyor further comprises a second decelerator, the second decelerator is fixed at an upper end of the conveying pipe, the second motor is indirectly fixed with the conveying pipe through the second decelerator, an input shaft of the second decelerator is connected with a motor shaft of the second motor, and an output shaft of the second decelerator is connected with an upper end of the screw conveyor.
9. The assembly line of claim 1, wherein the magnetic separator comprises a first-stage strong magnetic roller, a second-stage strong magnetic roller, a third-stage strong magnetic roller and a fourth-stage strong magnetic roller which are sequentially arranged from a feed inlet to the rest material outlets in a segmented manner, a strong magnetic material collecting bin is arranged below the first-stage strong magnetic roller, a strong magnetic material outlet is arranged at the bottom of the strong magnetic material collecting bin, a weak magnetic material collecting bin is arranged at the bottoms of the second-stage strong magnetic roller, the third-stage strong magnetic roller and the fourth-stage strong magnetic roller, and a weak magnetic material outlet is arranged at the bottom of the weak magnetic material collecting bin.
10. A process for extracting and separating mica and weakly magnetic materials from tailings, characterized in that the process adopts the flow line as claimed in any one of claims 1 to 9, and comprises the following steps:
lifting tailing materials below 5mm to a storage bin;
the tailing materials are mixed with water and then enter a high-frequency material dividing sieve to be separated into 5mm-20 mesh oversize products and undersize products below 20 meshes;
the oversize material and the undersize material respectively enter different ultrasonic cleaning chute to carry out ultrasonic cleaning and dispersion, so that fine particles and large particles are separated;
the cleaned and dispersed oversize materials and undersize materials respectively enter different water flow cyclones to separate light materials below 120 meshes from the rest heavy materials, the heavy materials respectively enter different magnetic separators, and the light materials enter a third magnetic separator after being cleaned and dispersed by a third ultrasonic cleaning chute;
the heavy materials on the screen are separated into strong magnetic materials, weak magnetic materials and residual materials in a magnetic separator; sorting out iron and tungsten from the strong magnetic material through a shaking table; the weak magnetic material enters a third water flow cyclone for separation, mica overflows from a light material outlet along with water, and the magnetic material is discharged from a heavy material outlet, enters a rod mill for crushing and returns to a feed bin; dehydrating the rest materials through a dewatering screen to form building sand;
the heavy materials of the undersize are separated into strong magnetic materials, weak magnetic materials and residual materials in a magnetic separator; sorting out iron and tungsten from the strong magnetic material through a shaking table; the weak magnetic material enters a fourth water flow cyclone for separation, mica overflows from a light material outlet along with water, and magnetic materials are discharged from a heavy material outlet; dehydrating the rest materials through a dewatering screen to form fine sand;
the light materials of the oversize materials and the undersize materials are separated into strong magnetic materials, weak magnetic materials and residual materials in a third magnetic separator; sorting out iron and tungsten from the strong magnetic material through a shaking table; the weak magnetic material enters a fourth water flow cyclone for separation, mica overflows from a light material outlet along with water, and magnetic materials are discharged from a heavy material outlet; the residual materials are treated by a filter drum and a squeezer in sequence to form tail mud.
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| FR1117429A (en) * | 1953-11-21 | 1956-05-23 | Stamicarbon | Process for the separation of mixtures of particles differing in grain size and specific gravity |
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