CN114054216B - Method and equipment for improving separation flotation concentration of bulk concentrate - Google Patents
Method and equipment for improving separation flotation concentration of bulk concentrate Download PDFInfo
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- CN114054216B CN114054216B CN202111343469.1A CN202111343469A CN114054216B CN 114054216 B CN114054216 B CN 114054216B CN 202111343469 A CN202111343469 A CN 202111343469A CN 114054216 B CN114054216 B CN 114054216B
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- separation
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- 239000012141 concentrate Substances 0.000 title claims abstract description 109
- 238000000926 separation method Methods 0.000 title claims abstract description 75
- 238000005188 flotation Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 64
- 239000007787 solid Substances 0.000 claims abstract description 29
- 238000005086 pumping Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000003638 chemical reducing agent Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 19
- WIKSRXFQIZQFEH-UHFFFAOYSA-N [Cu].[Pb] Chemical compound [Cu].[Pb] WIKSRXFQIZQFEH-UHFFFAOYSA-N 0.000 claims description 17
- 239000006260 foam Substances 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 10
- 239000011859 microparticle Substances 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- 239000003153 chemical reaction reagent Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002893 slag Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims 4
- 241001330002 Bambuseae Species 0.000 claims 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 4
- 239000011425 bamboo Substances 0.000 claims 4
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000003814 drug Substances 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 229940079593 drug Drugs 0.000 abstract description 3
- 239000002923 metal particle Substances 0.000 description 9
- 239000002562 thickening agent Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000007667 floating Methods 0.000 description 4
- 230000003405 preventing effect Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910001111 Fine metal Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000011707 mineral Substances 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2444—Discharge mechanisms for the classified liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
- B01D21/286—Means for gentle agitation for enhancing flocculation
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
-
- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for improving the separation flotation concentration of bulk concentrate, which comprises the following steps: 1. the mixed concentrate pulp scraped by the mixed concentration flotation machine is conveyed into a middling box through a mixed concentrate conveying pipeline; 2. the mixed concentrate pulp which is pumped into a middling box is subjected to physical stripping and mechanical stripping treatment; 3. pumping the bulk concentrate pulp subjected to the drug removal treatment into a liquid-solid separation concentrator for concentration; 4. the concentrated and adjusted mixed concentrate pulp is sucked into a lifting stirring barrel. The method improves the low separation flotation concentration to the proper concentration for beneficiation, plays a vital role in improving the beneficiation recovery rate and obtaining the qualified product, is simple and safe to operate, stably produces and increases the economic benefit. The invention also discloses equipment for improving the separation flotation concentration of the bulk concentrate.
Description
Technical Field
The invention relates to a method and equipment for improving the separation flotation concentration of bulk concentrate.
Background
The mineral slurry flow in the existing technological flow is as follows: 1. the method comprises the steps of mixing first and second series of concentrate pulp, entering a middling chemical removal box for chemical removal treatment, entering a middling pump, controlling the rotation speed of the middling pump by frequency conversion to achieve the aim of uniform ore feeding, pumping the middling pump into a lifting stirring barrel for stirring, and finally entering a separation flotation system to finish the copper-lead separation work of the mixed concentrate. When copper and lead mixed concentrates are subjected to separation flotation in the production process in recent years, the conditions of high mutual content of the mixed concentrates and difficult separation, and reduced metal recovery rate and concentrate quality are caused. In order to avoid the situation, the reasons influencing the separation of the bulk concentrates are searched, the reasons of difficult separation of the bulk concentrates are searched from ore properties, ore grinding fineness, reagent system and floatation concentration, and the situations of difficult separation caused by lower floatation concentration and exceeding the floatation concentration critical value required by ore dressing in the process of separating the bulk concentrates are compared, analyzed and determined, the grades of the floating useful metal concentrates are particularly high and particularly good through the regulation of normal bulk concentrate separation reagent, the useful metals of the floating underflow are less than 6% because of the floatation concentration, the impurities in the metal separation are not completely controlled by the reagent, and the grades of the useful metal concentrates of the underflow are particularly low and cannot completely meet the ore dressing requirement. Sometimes, the medicament is not adjusted timely, so that the mutual content of useful metals is high, the recovery rate is low, and the economic benefit of a company is influenced.
Disclosure of Invention
In order to overcome the problems that the mixed concentrate has high mutual content and is difficult to separate when the mixed concentrate is subjected to separation flotation, and the metal recovery rate and the concentrate quality are reduced. The invention discloses a method for improving the separation flotation concentration of bulk concentrates, which improves the low separation flotation concentration to a proper concentration for beneficiation, plays a vital role in improving the beneficiation recovery rate and obtaining qualified products, is simple and safe to operate, stably produces and increases economic benefits.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a method for improving the separation flotation concentration of bulk concentrates, comprising the following steps:
1. the mixed concentrate ore pulp scraped by the mixed concentration flotation machine is conveyed into a mixed concentrate conveying foam pump through a mixed concentrate conveying pipeline by using brewing water, and the mixed concentrate ore pulp is conveyed into a middling box through the mixed concentrate conveying pipeline by the operation of the mixed concentrate conveying foam pump;
2. adding active carbon into the mixed concentrate pulp in a middling box through a disc feeder for physical reagent removal, fully stirring through a stirrer, performing mechanical reagent removal treatment, and controlling the rotating speed of the middling pump to be uniform by frequency conversion when entering the middling pump;
3. pumping the mixed concentrate pulp subjected to the chemical removal treatment in the step (2) into a liquid-solid separation concentrator through a slurry pump for concentration, and performing descending precipitation and clear water top overflow treatment on the concentrate;
4. sucking the concentrated and adjusted mixed concentrate pulp into a lifting stirring barrel through an underflow high-concentration pulp discharge pipe, fully stirring the mixed concentrate pulp and the required additive of a lower-stage copper-lead separation flotation system in the lifting stirring barrel, and then entering a copper-lead separation flotation machine through a mixed concentrate conveying pipeline to finish copper-lead separation work; and after the superfluous clear water in the settled and clarified bulk concentrate is collected by an overflow groove at the top of the liquid-solid separation concentrator, the superfluous clear water is conveyed into a lead concentrate 6-meter concentrator in a flotation system by an overflow water pipe, and the superfluous clear water and the qualified lead concentrate discharged by separation flotation are concentrated and dehydrated simultaneously.
The invention also discloses equipment for improving the separation flotation concentration of the bulk concentrate, which comprises a mixed concentration flotation machine, a bulk concentrate conveying foam pump, a middling box, a slurry pump, a liquid-solid separation concentration machine, a lifting stirring barrel and a copper-lead separation flotation machine;
the mixed concentrate ore pulp scraped by the mixed concentration flotation machine is communicated with a mixed concentrate conveying foam pump through a mixed concentrate conveying pipeline, the mixed concentrate conveying foam pump is communicated with a middling box through the mixed concentrate conveying pipeline, a discharge hole of the middling box is communicated with a slag pulp pump through the mixed concentrate conveying pipeline, the slag pulp pump is communicated with a square tubular spiral tangential feeding pipe of the liquid-solid separation concentration machine through the mixed concentrate conveying pipeline, a bottom flow high-concentration ore pulp ore discharging pipe is communicated with a lifting stirring barrel, and the lifting stirring barrel is communicated with the copper-lead separation flotation machine through a pipeline.
Further, the liquid-solid separation thickener consists of a lifting device part, a driving device, a box body part, a central steady flow feeding device part and a stirring main shaft part; the lifting device part comprises a lifting screw rod, a screw nut handle, a bearing, a lifting device bracket, a bearing box, a connecting shaft pin and a bearing box bracket; the driving device comprises a cycloidal pin gear speed reducer, a pin coupling, a turbine worm speed reducer, a fastening bolt and a stirring driving bracket; the box body part comprises a box body, an overflow groove, a box body support column, a conical funnel, a discharge hole, a bottom discharge hole and an overflow water outlet; the central steady flow feeding device comprises a cylindrical steady flow cylinder, a spiral tangential feeding pipe, a cylindrical steady flow cylinder bracket, an umbrella-shaped material distributing disc and an umbrella-shaped flange bracket; the stirring main shaft part comprises a stirring main shaft upper part, a stirring main shaft lower part, a connecting flange, a conical helical blade stirrer and a stirring bottom bearing; and the bearing box is arranged on the bearing box support, the bearing box support is welded on the upper position of the lifting device support, the lifting device support is welded on the stirring driving support, the stirring driving support is welded on the upper part of the box body, the lifting screw rod is fixedly connected with the upper part of the stirring main shaft, the worm gear reducer is arranged on the central position of the stirring driving support, the cycloidal pin gear reducer is connected with the worm gear reducer through a pin coupling, the cycloidal pin gear reducer is arranged on the stirring driving support, the lower part of the box body is welded with a box body support column, the overflow groove is welded on the inner upper side of the box body, the overflow drain outlet is welded on the flush position of the bottom of the overflow groove, the conical funnel is welded on the central position of the bottom of the box body, the center of the discharge outlet is vertically welded on the side surface of the conical funnel, and the bottom discharge outlet is welded on the central position of the bottom of the conical funnel. The cylindrical steady flow cylinder is fixedly arranged below the stirring driving support by utilizing the cylindrical steady flow cylinder support connection and is positioned at the right central position of the box body, the spiral tangent feeding pipe is welded in the cylindrical steady flow cylinder, the umbrella-shaped flange plate support connection of the umbrella-shaped material distribution plate is fixedly arranged at the right central position of the bottom of the cylindrical steady flow cylinder, the top end of the upper part of the stirring main shaft is arranged in the hollow transmission shaft of the worm gear reducer, the connecting shaft pin is connected with the lifting screw rod to form an integral structure, the bottom end of the lower part of the stirring main shaft is arranged in the stirring bottom bearing and then is connected with the connecting flange to form the whole main shaft, the conical helical blade stirrer is welded at the lower part of the stirring main shaft, and the stirring bottom bearing is fixedly arranged at the bottom surface inside the conical funnel.
Further, a PVC plastic sloping plate 45-degree micro-particle material blocking steady flow settler with the vertical height of 400 mm is designed and installed at the position 100-500 mm below the upper weir of the overflow groove.
Further, the micro-particle material blocking steady flow settler is a PVC plastic inclined plate 45-degree micro-particle material blocking steady flow settler.
The beneficial effects of the invention are as follows:
1. the process of the invention improves the low separation flotation concentration to the proper concentration for beneficiation, plays a key role in improving the beneficiation recovery rate and obtaining the qualified product, is simple and safe to operate, stably produces and increases the economic benefit; 2. the middling box of the device is a small-sized stirring device which is additionally arranged on the crude middling medicine removing box, so that active carbon and ore pulp in the crude medicine removing box are fully removed by stirring, and the device has the defoaming function at the same time, so that the loss of fine particle concentrate is prevented when foam enters a liquid-solid separation concentrator and is wrapped by overflow water; 3. the liquid-solid separation concentrator utilizes the cycloidal pin gear speed reducer and the worm gear speed reducer to assemble the two-stage speed reduction combination, and the design can achieve the effects of low power, low rotation speed and high torque; 4. the liquid-solid separation concentrator utilizes a cylindrical spiral tangential feed cylinder, and the design can play a role in stabilizing, buffering and preventing ore pulp from mixing; 5. the liquid-solid separation concentrator utilizes a square tubular spiral tangential feeding pipe, and the design can play roles in stabilizing flow, buffering and preventing ore pulp from being mixed and fed at the bottom; 6. the conical blade spiral stirrer of the liquid-solid separation concentrator can achieve low-rotation-speed and high-torque stirring, and achieves the aim of real-time uniform ore discharge.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
1-1, a mixing and concentrating flotation machine; 1-2, a first bulk concentrate conveying pipeline; 1-3, a foam pump for conveying bulk concentrate; 1-4, a bulk concentrate conveying pipeline II; 2-1, a disc feeder; 2-2, a stirrer; 2-3, a manual gate valve; 2-4, a bulk concentrate conveying pipeline III; 2-5, a slurry pump; 2-6, a bulk concentrate conveying pipeline IV; 3-1, a turbine speed reducer; 3-2, cycloidal pin gear speed reducer; 3-3, a conical helical blade stirrer; 3-4, a square tubular spiral tangent feeding pipe; 3-5, an overflow groove; 3-6, overflow water pipe; 3-7 inch underflow concentration adjusting water pipe; 3-8, umbrella-shaped material distributing disc; 3-9, an electro-hydraulic wear-resistant gate valve; 3-10, an underflow high-concentration ore pulp ore discharge pipe; 3-11, a micro-particle material blocking steady flow settler; 3-12, a steady flow settler support is blocked by the micro-particle materials; 3-13, an umbrella-shaped material separating disc bracket; 3-14 stirrer spindle; 3-15; a pulp concentration meter; 3-16, an electric ball valve; 4-1, lifting the stirring barrel; 4-2, a bulk concentrate conveying pipeline V; 4-3, a copper-lead separation flotation machine, 5 and a lead concentrate 6-meter concentration machine.
Detailed Description
A method for increasing the concentration of mixed concentrate in separation and floatation includes such steps as delivering the ore pulp of mixed concentrate scraped by a first mixed concentrate delivering pipeline 1-1 to 2 via flushing water to the foam pump 1-3, delivering the ore pulp of mixed concentrate to a middling box via a second mixed concentrate delivering pipeline 1-4, stirring, defoaming and adding medicine to the middling box.
After the mixed concentrate ore pulp subjected to the removal of the drugs enters the slurry pump 2-5 through the mixed concentrate conveying pipeline III 2-4 at the inlet end of the slurry pump, the slurry pump 2-5 is designed in parallel by one pair, the mixed concentrate ore pulp subjected to the removal of the drugs is pumped into a liquid-solid separation concentrator which is designed by self-development through the mixed concentrate conveying pipeline IV 2-6 to finish the dehydration concentration, the center of the liquid-solid separation concentrator is a cylindrical spiral tangential feeding cylinder, and a square tubular spiral tangential feeding pipe 3-4 with the volume which is larger than that of a circular pipe with the same length by 3 times is designed in the cylindrical spiral tangential feeding cylinder.
In the process flow, the ore pulp is copper and lead mixed concentrate metal particles with larger specific gravity and about 5 mu m-0.5 mm copper and lead metal particles in the ore pulp, so that after part of coarse particle metal particles enter a liquid-solid separation thickener, the sedimentation speed is higher, in order to prevent the blockage of an underflow high-concentration ore pulp ore discharge pipe 3-10 caused by the rapid sedimentation of the coarse particle metal particles, a stirring device consisting of a turbine speed reducer 3-1, a cycloidal pin wheel speed reducer 3-2, a stirrer main shaft 3-14 and a conical helical blade stirrer 3-3 is designed and installed in the liquid-solid separation thickener, and the stirring device works at a rotating speed of 1.5 circles per minute, has the advantages of small power, low rotating speed, high torque and good stability, and achieves the good effects of stirring and diluting the bottom high-concentration ore pulp, preventing the blockage of the underflow high-concentration ore pulp ore discharge pipe 3-10 and preventing the bottom high-concentration ore pulp from stirring to cause the metal particles to float upwards. The upper part of the liquid-solid separation thickener is of a square structure with equal diameter, the volume of the liquid-solid separation thickener is larger than that of a circular volume structure with equal diameter, the lower part of the liquid-solid separation thickener is conical, materials can slide down and settle efficiently, in order to prevent fine metal particles in ore pulp from floating up and losing along with overflow water at the top to cause concentrate loss because of the physical characteristics of the liquid-solid separation thickener, a PVC plastic inclined plate (45-degree) fine particle material blocking steady flow settler with the vertical height of 400 mm is designed and installed at the position of 100-500 mm below an overflow groove 3-5 upper weir of the liquid-solid separation thickener, steady flow is carried out on the upper liquid level in the liquid-solid separation thickener, and the fine metal particles vertically floating up in the upper liquid level are blocked by a method of obliquely arranging a PVC plastic plate at 45 degrees to enable the fine metal particles to quickly drop down and settle, and the design fully utilizes the material characteristics of high acid-alkali resistance, high corrosion resistance, smooth surface and difficult material adhesion of the PVC plastic plate.
After the mixed concentrate enters the liquid-solid separation concentrator, the working of liquid level steady flow, material sedimentation acceleration, low-speed stirring uniform discharge and the like are finished through the technical means, and meanwhile, the discharge flow of the underflow high-concentration ore pulp of the liquid-solid separation concentrator is controlled by utilizing the electric hydraulic wear-resistant sluice valve 3-9 arranged on the underflow high-concentration ore pulp discharge pipe 3-10 so as to control the overflow flow of clear water at the top, thereby achieving the expected aim of uniformly improving the high-concentration mixed concentrate pulp required by a lower copper-lead separation flotation system in real time in the production and use process.
The method is characterized in that an ore pulp concentration meter 3-15 is designed and installed on an underflow high-concentration ore pulp discharge pipe 3-10, an electric ball valve 3-16 installed on an underflow concentration adjusting water pipe 3-7 is controlled through a sensing electric control system, when the concentration is higher than 20%, the electric ball valve 3-16 is opened for water supply dilution, when the concentration is lower than 18%, the electric ball valve 3-16 is closed, water supply is stopped, the discharge concentration of underflow high-concentration mixed concentrate ore pulp is adjusted, the underflow concentration reaches 18% -20% of the ore pulp concentration required by a lower section copper-lead separation flotation system in real time, and partial overflow water discharged by an overflow water pipe 3-6 is also effectively utilized by the design, so that the concentration of the underflow ore pulp can be adjusted, and the good effect of no new water is achieved. The mixed concentrate ore pulp reaching the requirements is automatically sucked by a lifting stirring barrel 4-1 through an underflow high-concentration ore pulp discharging pipe 3-10, after the stirring work of adding medicaments required by a mixed concentrate ore pulp and a lower copper-lead separation flotation system is completed, the mixed concentrate ore pulp enters a copper-lead separation flotation machine 4-3 through a mixed concentrate conveying pipeline 4-2 to complete copper-lead separation work, an overflow tank 3-5 is designed at the top of a liquid-solid separation concentrator, after the surplus clear water in the settled and clarified mixed concentrate is collected through the overflow tank 3-5, the mixed concentrate is conveyed and discharged into an original lead concentrate 6-meter concentrator in the flotation system through an overflow water pipe 3-6, and the concentration and dehydration work is completed simultaneously with qualified lead concentrate removed by separation flotation, so that a small amount of ultrafine metal particles in overflow water are prevented from losing, and the metal recovery work is better completed.
Claims (5)
1. A method for increasing the separation flotation concentration of bulk concentrates, comprising the steps of:
(1) The mixed concentrate ore pulp scraped by the mixed concentration flotation machine is conveyed into a mixed concentrate conveying foam pump through a mixed concentrate conveying pipeline by using brewing water, and the mixed concentrate ore pulp is conveyed into a middling box through the mixed concentrate conveying pipeline by the operation of the mixed concentrate conveying foam pump;
(2) Adding active carbon into the mixed concentrate pulp in a middling box through a disc feeder to perform physical reagent removal, and performing mechanical reagent removal treatment after fully stirring through a stirrer;
(3) Pumping the mixed concentrate pulp subjected to the chemical removal treatment in the step (2) into a liquid-solid separation concentrator through a slurry pump for concentration, and carrying out descending precipitation and clear water top overflow treatment on the concentrate;
(4) Sucking the concentrated and adjusted mixed concentrate pulp into a lifting stirring barrel through an underflow high-concentration pulp discharge pipe, and after the mixed concentrate pulp and the required additive agent of a lower-stage copper-lead separation flotation system are fully stirred in the lifting stirring barrel, entering a copper-lead separation flotation machine through a mixed concentrate conveying pipeline to complete copper-lead separation work; and after the superfluous clear water in the settled and clarified bulk concentrate is collected by an overflow groove at the top of the liquid-solid separation concentrator, the superfluous clear water is conveyed into a lead concentrate 6-meter concentrator (5) in a flotation system by an overflow water pipe, and the superfluous clear water and the qualified lead concentrate discharged by separation flotation are concentrated and dehydrated simultaneously.
2. An apparatus for increasing the separation flotation concentration of bulk concentrates, characterized in that: comprises a mixing and carefully selecting flotation machine (1-1), a mixed concentrate conveying foam pump (1-3), a middling box, a slurry pump (2-5), a liquid-solid separation concentrator, a lifting stirring barrel (4-1) and a copper-lead separation flotation machine (4-3);
the mixed concentrate ore pulp scraped by the mixed concentration flotation machine (1-1) is communicated with a mixed concentrate conveying foam pump (1-3) through a first mixed concentrate conveying pipeline (1-2), the mixed concentrate conveying foam pump (1-3) is communicated with a middling box through a second mixed concentrate conveying pipeline (1-4), a discharge hole of the middling box is communicated with a slag pulp pump (2-5) through a third mixed concentrate conveying pipeline (2-4), the slag pulp pump (2-5) is communicated with a square tubular spiral tangential feeding pipe (3-4) of the liquid-solid separation concentration machine through a fourth mixed concentrate conveying pipeline (2-6), an underflow high-concentration ore pulp discharging pipe (3-10) is communicated with a lifting stirring barrel (4-1), and the lifting stirring barrel is communicated with the copper-lead separation flotation machine (4-3) through a fifth mixed concentrate conveying pipeline (4-2).
3. The apparatus for increasing the separation flotation concentration of bulk concentrates as claimed in claim 2, wherein: the liquid-solid separation concentrator consists of a lifting device, a driving device, a box body part, a central steady flow feeding device and a stirring main shaft part;
the lifting device comprises a lifting screw rod, a screw nut handle, a bearing, a lifting device bracket, a bearing box, a fastening bolt I, a connecting shaft pin and a bearing box bracket;
the driving device comprises a cycloidal pin gear speed reducer, a pin coupling, a turbine worm speed reducer, a fastening bolt II, a stirring driving bracket and a fastening bolt III;
the box body part comprises a box body, an overflow groove, a conical funnel, a discharge hole, a bottom discharge hole, an overflow water outlet, a PVC plastic sloping plate 45-degree micro-particle material blocking steady flow settler and a blocking steady flow settler bracket;
the central steady flow feeding device comprises a cylindrical steady flow cylinder, a square tubular spiral tangential feeding pipe, a cylindrical steady flow cylinder bracket and an umbrella-shaped material distributing disc;
the stirring main shaft part comprises a stirring main shaft upper part, a stirring main shaft lower part, a connecting flange, a conical helical blade stirrer and a stirring bottom bearing;
the bearing box is fixed on the bearing box support, the bearing box support is fixed in hoisting device support upper portion position, hoisting device support is fixed on stirring drive support, stirring drive support is fixed on box upper portion, turbine worm reducer is fixed in stirring drive support upper center position, cycloidal pin gear reducer and turbine worm reducer utilize the pin shaft coupling to be connected, cycloidal pin gear reducer is fixed on stirring drive support, the overflow launder is fixed in box inside upper limit, the overflow outlet is fixed in overflow launder bottom parallel and level position, the cone funnel is fixed in box bottom center position, the discharge gate is in the cone funnel side, the bottom drain is welded in cone funnel bottom center position, the cylinder stationary flow section of thick bamboo utilizes cylinder stationary flow section of thick bamboo leg support to be connected below stirring drive support, square tubular spiral tangent feed pipe is fixed in cylinder stationary flow section of thick bamboo inside, umbrella-shaped feed divider connection is fixed in cylinder stationary flow section of thick bamboo bottom, stirring main shaft upper portion top is passed inside the turbine worm reducer hollow transmission shaft, utilize the flat key to be connected with turbine worm reducer hollow shaft, the recess portion on main shaft top is connected with stirring main shaft bottom protruding portion of lifting screw bottom, utilize the connection pivot to connect, the stirring main shaft bottom is fixed in cone bottom flange bottom surface and stirring bottom flange, stirring shaft bottom portion is fixed in stirring bottom flange, stirring flange portion is connected with stirring main shaft bottom portion.
4. A method and apparatus for increasing the separation flotation concentration of bulk concentrates as claimed in claim 3, wherein: and a micro-particle material blocking steady flow settler with the vertical height of 400 mm is designed and installed at the position 100 mm-500 mm below the upper weir of the overflow groove.
5. A method and apparatus for increasing the separation flotation concentration of bulk concentrates as claimed in claim 3, wherein: the micro-particle material blocking steady flow settler is a PVC plastic inclined plate 45-degree micro-particle material blocking steady flow settler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111343469.1A CN114054216B (en) | 2021-11-13 | 2021-11-13 | Method and equipment for improving separation flotation concentration of bulk concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111343469.1A CN114054216B (en) | 2021-11-13 | 2021-11-13 | Method and equipment for improving separation flotation concentration of bulk concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114054216A CN114054216A (en) | 2022-02-18 |
| CN114054216B true CN114054216B (en) | 2023-11-28 |
Family
ID=80271854
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