CN111139355A - Production line with anti-scaling function for extracting nickel and cobalt from laterite-nickel ore - Google Patents

Production line with anti-scaling function for extracting nickel and cobalt from laterite-nickel ore Download PDF

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Publication number
CN111139355A
CN111139355A CN201811311306.3A CN201811311306A CN111139355A CN 111139355 A CN111139355 A CN 111139355A CN 201811311306 A CN201811311306 A CN 201811311306A CN 111139355 A CN111139355 A CN 111139355A
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China
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iron removal
production line
reaction device
barrel
removal reaction
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CN201811311306.3A
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CN111139355B (en
Inventor
刘玉强
沙滨
李维舟
田忠元
陈小林
杨松林
秦为涛
黄海丽
马海青
贺来荣
马永刚
杜昊
王少华
王多江
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Jinchuan Group Co Ltd
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Jinchuan Group Co Ltd
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Priority to CN201811311306.3A priority Critical patent/CN111139355B/en
Priority to PCT/CN2018/114818 priority patent/WO2020093367A1/en
Publication of CN111139355A publication Critical patent/CN111139355A/en
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Publication of CN111139355B publication Critical patent/CN111139355B/en
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/02Apparatus therefor
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00Obtaining nickel or cobalt
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00Obtaining nickel or cobalt
    • C22B23/04Obtaining nickel or cobalt by wet processes
    • C22B23/0407Leaching processes
    • C22B23/0415Leaching processes with acids or salt solutions except ammonium salts solutions
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00Obtaining nickel or cobalt
    • C22B23/04Obtaining nickel or cobalt by wet processes
    • C22B23/0453Treatment or purification of solutions, e.g. obtained by leaching
    • C22B23/0461Treatment or purification of solutions, e.g. obtained by leaching by chemical methods
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/44Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The production line for extracting nickel and cobalt from the laterite-nickel ore with the anti-scaling function, which is provided by the invention, comprises a device for acid leaching of the laterite-nickel ore, an iron removal reaction device and a heat exchanger; the device for acid leaching of the laterite-nickel ore comprises a horizontal reactor and a vertical reaction tank arranged at a position close to one end of the horizontal reactor, wherein the vertical reaction tank and the horizontal reactor are both provided with stirring mechanisms. The iron removal reaction device and the heat exchanger both comprise a supporting mechanism, a barrel capable of rotating on the supporting mechanism and a driving mechanism for driving the barrel to rotate, and a plurality of partition plates are arranged on the inner wall of the barrel of the iron removal reaction device; the heat exchanger is provided with a plurality of ceramic balls inside the cylinder body. The invention ensures that the interior of the equipment is not easy to scale through the special design of the internal structure of the main equipment and the reasonable design of the flow velocity of the pipeline, thereby ensuring that the production is continuously operated, greatly improving the production efficiency, greatly reducing the spare part loss and greatly reducing the operation and maintenance cost.

Description

Production line with anti-scaling function for extracting nickel and cobalt from laterite-nickel ore
Technical Field
The invention relates to the technical field of laterite hydrometallurgy processes, in particular to a production line with an anti-scaling function for extracting nickel and cobalt from laterite-nickel ore.
Background
The invention mainly relates to chemical equipment, and discloses a production line for extracting nickel and cobalt from laterite-nickel ore, which comprises a device for acid leaching laterite-nickel ore, an iron removal reaction device and an iron removal liquid heat exchanger. The existing leaching reactor is easy to form scale at the bottom of a tank body, a valve, a stirring part and the like due to the high-temperature violent reaction of acid leaching, so that production stop maintenance and equipment damage are caused; the iron removal reactor is a static compartment type horizontal reactor, scaling is easily formed at a compartment and a liquid outlet position, production stop and scaling and maintenance are required, the operation cost is high, and the production efficiency is low; the liquid after iron removal is treated by a multi-stage flash system, and the defects of the system are that the heat energy loss is huge, the flash valve is easy to scale and damage, the replacement is frequent, and the spare part cost is high. In the existing production line, the flow rate design of a common pipeline is unreasonable, the scale in the pipeline is serious, and the continuous and stable operation of the normal pressure leaching and pressurized iron removing system is seriously influenced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention reduces the problem of scaling inside the equipment on the production line for extracting nickel and cobalt in the laterite-nickel ore by changing the internal structure of the equipment and controlling the flow velocity of the pipeline, thereby ensuring continuous operation of production, improving the production efficiency and reducing the operation and maintenance cost.
The invention mainly adopts the following technical scheme:
the production line for extracting nickel and cobalt from the laterite-nickel ore with the anti-scaling function is characterized by comprising a device for acid leaching of the laterite-nickel ore, an iron removal reaction device and a heat exchanger; the device for acid leaching of the laterite-nickel ore comprises a vertical reaction tank (1) and a horizontal reactor (2), wherein the vertical reaction tank (1) is installed at a position close to one end of the horizontal reactor (2), a material output pipe (3) is connected at a position close to the other end of the horizontal reactor (2), a feeding hole is formed in the upper part of the vertical reaction tank (1), the vertical reaction tank (1) is provided with a first stirring mechanism, and the horizontal reactor (2) is provided with a second stirring mechanism; the iron removal reaction device and the heat exchanger both comprise a supporting mechanism, a barrel body capable of rotating on the supporting mechanism and a driving mechanism for driving the barrel body to rotate, and a plurality of partition plates (11) are arranged on the inner wall of the barrel body (10) of the iron removal reaction device; the heat exchanger comprises a barrel body and a heat exchanger, wherein the barrel body comprises an outer shell (14) and an inner barrel body (15) positioned in the outer shell (14), perforated partition plates (16) are respectively arranged at positions close to two ends of the inner barrel body (15), a plurality of heat exchange tubes (17) which are circumferentially distributed are arranged in the inner barrel body (15) along the axial direction, and the heat exchange tubes (17) are supported by the perforated partition plates (16); a heat exchange jacket (18) is arranged between the outer shell (14) and the inner cylinder (15), and a plurality of porcelain balls (19) are arranged inside the inner cylinder (15) and inside the heat exchange jacket (18); and the two ends of the barrel of the iron removal reaction device, the two ends of the barrel of the heat exchanger, the two ends of the heat exchange tube (17) and the two ends of the heat exchange jacket (18) are respectively provided with a feeding hole and a discharging hole.
The production line is characterized in that the first stirring mechanism comprises a first speed regulating motor (4) and a vertical stirring column (5); the first speed regulating motor (4) is arranged at the top of the vertical reaction tank (1), and the vertical stirring column (5) is positioned in the vertical reaction tank (1) and is connected with the first speed regulating motor (4); the second stirring mechanism comprises a second speed regulating motor (6) and a horizontal stirring column (7); the second speed regulating motor (6) is located at one end of the horizontal reactor (2) and close to the vertical reaction tank (1), the horizontal stirring column (7) is located inside the horizontal reactor (2) and connected with the second speed regulating motor (6), and helical blades are installed on the surface of the vertical stirring column (5) and the surface of the horizontal stirring column (7).
The production line according to the above, characterized in that the horizontal mixing column (7) is supported by a first bearing support (8) and a second bearing support (9), the first bearing support (8) and the second bearing support (9) being located at both ends of the horizontal reactor (2).
The production line is characterized in that two helical blades with opposite curved surfaces are arranged on the surface of the horizontal stirring column (7).
The production line is characterized in that a splitter plate (12) is arranged in the barrel (10) of the iron removal reaction device and close to the feed inlet of the iron removal reaction device, the splitter plate (12) is welded with the inner wall of the barrel (10) of the iron removal reaction device, and the splitter plate (12) is provided with a plurality of through holes; and a first spiral shoveling plate (13) is arranged on the inner wall of the barrel (10) of the iron removal reaction device at a position close to a discharge hole of the iron removal reaction device.
According to the production line, the production line is characterized in that the flow distribution plate (12) is a hollow conical cylinder, a plurality of through holes are formed in the side wall of the hollow conical cylinder, and the large opening end of the hollow conical cylinder faces the discharge hole of the iron removal reaction device.
The production line is characterized in that the perforated partition plate (16) is provided with a plurality of holes, and the hole diameter of the perforated partition plate is smaller than the diameter of the porcelain ball (19); the middle part of the clapboard (16) with holes is provided with a manhole which can be opened and closed.
The production line is characterized in that a plurality of support plates (20) are welded inside the inner cylinder (15), through holes are formed in the middle of the support plates (20), a plurality of holes are formed in the rest parts of the support plates (20), and the hole diameter of each support plate is smaller than the diameter of the porcelain ball (19); and a semicircular hole is formed in the welding part between the support plate (20) and the inner part of the inner cylinder body (15).
The production line is characterized in that the inner walls of the outer shell (14) close to the two ends are provided with second spiral shoveling plates (21).
The production line is characterized in that a plurality of ring plates (22) are arranged between the inner cylinder (15) and the outer shell (14), and the ring plates (22) are provided with a plurality of holes with the diameter smaller than that of the porcelain balls (19).
The invention has the beneficial effects that: in the production line for extracting nickel and cobalt from the laterite-nickel ore, the internal structure of main equipment and the reasonable design of the flow rate of a pipeline are designed, so that the equipment is not easy to scale, the production is continuously operated, the production efficiency is greatly improved, the spare part loss is greatly reduced, and the operation and maintenance cost is greatly reduced.
Drawings
FIG. 1 is a schematic structural diagram of a device for acid leaching of laterite-nickel ore in the invention;
FIG. 2 is a schematic view of the iron removal reaction apparatus according to the present invention;
FIG. 3 is a schematic view of a heat exchanger according to the present invention;
fig. 4 is a schematic structural view of the support mechanism of the present invention.
Detailed Description
The production line for extracting nickel and cobalt from the laterite-nickel ore with the anti-scaling function comprises a device for acid leaching of the laterite-nickel ore, an iron removal reaction device and a heat exchanger; referring to fig. 1, the device for acid leaching of laterite-nickel ore comprises a vertical reaction tank 1 and a horizontal reactor 2, wherein the vertical reaction tank 1 is installed at a position close to one end of the horizontal reactor 2, a material output pipe 3 is connected at a position close to the other end of the horizontal reactor 2, two feed inlets are arranged at the upper part of the vertical reaction tank 1, the two feed inlets of the vertical reaction tank 1 are respectively connected with an acid solution pipeline 27 and an ore pulp pipeline 28, a first stirring mechanism is arranged inside the vertical reaction tank 1, and a second stirring mechanism is arranged inside the horizontal reactor 2; the first stirring mechanism comprises a first speed regulating motor 4 and a vertical stirring column 5; the first speed regulating motor 4 is arranged at the top of the vertical reaction tank 1, and the vertical stirring column 5 is positioned inside the vertical reaction tank 1 and is connected with the first speed regulating motor 4; the second stirring mechanism comprises a second speed regulating motor 6 and a horizontal stirring column 7; the second speed regulating motor 6 is located at one end of the horizontal reactor 2 and is close to the vertical reaction tank 1, the horizontal stirring column 7 is located inside the horizontal reactor 2 and is connected with the second speed regulating motor 6, helical blades are mounted on the surfaces of the vertical stirring column 5 and the horizontal stirring column 7, and preferably, two helical blades with opposite curved surfaces are mounted on the surface of the horizontal stirring column 7. Horizontal stirred column 7 supports through first bearing bracket 8 and second bearing bracket 9, and first bearing bracket 8 and second bearing bracket 9 are located horizontal reactor 2 both ends, and first bearing bracket 8 and second bearing bracket 9 are used for supporting horizontal stirred column 7 on the one hand, and the material in the horizontal reactor 2 of on the other hand separation prevents that the material from oozing.
In the working process, acidizing fluid and thick liquid get into vertical retort 1 through acid solution pipeline 27 and ore pulp pipeline 28 respectively, and first buncher 4 drives vertical stirring post 5 high-speed rotatory, with acidizing fluid and thick liquid dispersion even and make its vertical whereabouts to horizontal reactor 2 in, two helical blade curved surface opposite directions of horizontal stirring post 7 surface mounting can reach following effect: firstly, the reaction speed is increased, and secondly, the acid liquor and the slurry are quickly conveyed to the outside of the horizontal reactor 2 in a spiral way without scaling. Meanwhile, the reactor has the non-scaling characteristic by reasonably selecting the inlet flow rates of the acid liquid and the slurry. The vertical reaction tank 1 and the horizontal reactor 2 are made of modified DS alloy, and the modified DS alloy has the characteristic of not being adhered to the laterite-nickel ore pickle liquor.
Referring to fig. 2 and 4, the iron removal reaction device includes a supporting mechanism, a cylinder 10 of the iron removal reaction device capable of rotating on the supporting mechanism, and a driving mechanism for driving the cylinder 10 of the iron removal reaction device to rotate, wherein a plurality of partition plates 11 are arranged on the inner wall of the cylinder 10 of the iron removal reaction device, and preferably, the partition plates 11 are rectangular plates. The two ends of the barrel 10 of the iron removal reaction device are provided with a feed inlet and a discharge outlet. The supporting mechanism comprises a plurality of roller rings 23 and a plurality of roller ring supports 24, the roller rings 23 are fixedly sleeved outside the barrel 10 of the iron removal reaction device, the roller ring supports 24 are provided with 2 rollers, the 2 rollers are in contact with the outer sides of the roller rings 23, and the 2 rollers are symmetrically distributed on two sides of a longitudinal central shaft of the roller rings 23. Preferably, a flow distribution plate 12 is arranged in the barrel 10 of the iron removal reaction device at a position close to the feed inlet, the flow distribution plate 12 is welded with the inner wall of the barrel 10 of the iron removal reaction device, and the flow distribution plate 12 is provided with a plurality of through holes; preferably, the flow distribution plate 12 is a hollow conical cylinder, a plurality of through holes are arranged on the side wall of the hollow conical cylinder, and the large opening end of the hollow conical cylinder faces the discharge opening of the cylinder 10 of the iron removal reaction device; the number of the flow distribution plates 12 is two. A first spiral shoveling plate 13 is arranged on the inner wall of the cylinder 10 of the iron removal reaction device at a position close to the discharge hole. The driving mechanism comprises a gear ring 25 and a motor 26, the gear ring 25 is welded outside the barrel 10 of the iron removal reaction device, and the motor 26 is connected with the gear ring 25.
In the working process, the barrel 10 of the iron removal reaction device performs rotary motion under high temperature, high pressure and strong acid through the driving mechanism, when slurry enters the barrel 10 of the iron removal reaction device, the slurry is uniformly dispersed on the cross section of the barrel 10 of the iron removal reaction device under the action of the two layers of flow distribution plates 12, the slurry moves forwards under the action of high pressure along the barrel 10 of the iron removal reaction device, the moving direction of the slurry is continuously changed under the action of the plurality of partition plates 11 on the inner wall of the barrel 10 of the iron removal reaction device, the slurry is distributed on the cross section of the barrel 10 of the iron removal reaction device, scale substances generated by reaction are prevented from being adhered to the barrel wall, and when the slurry reaches the outlet end, the accumulated slurry is timely and rotatably conveyed out of the reactor through the action of the first spiral shoveling plate 13 at the.
Referring to fig. 3 and 4, each heat exchanger comprises a supporting mechanism, a heat exchanger cylinder capable of rotating on the supporting mechanism, and a driving mechanism for driving the heat exchanger cylinder to rotate, wherein the heat exchanger cylinder comprises an outer shell 14 and an inner cylinder 15 positioned inside the outer shell 14; the outer housing 14 is the main pressure bearing member, which bears the internal pressure and the entire apparatus weight. Preferably, the inner walls of the outer shell 14 near both ends are provided with second spiral shoveling plates 21, and the second spiral shoveling plates 21 are uniformly distributed and used for guiding out the materials deposited inside the inner cylinder 15. The components and the working principle of the supporting mechanism and the driving mechanism of the heat exchanger are the same as those of the supporting mechanism and the driving mechanism of the iron removal reaction device, and the details are not repeated here. The two ends of the heat exchanger barrel are provided with a feed inlet and a discharge outlet, the feed inlet of the heat exchanger barrel is used for leading in reaction materials with relatively high temperature, and the discharge outlet of the heat exchanger barrel is used for leading out the reaction materials with relatively high temperature after heat exchange in the inner barrel 15. Partition plates 16 with holes are respectively arranged at positions close to the two ends of the inner cylinder body 15, a plurality of heat exchange tubes 17 which are circumferentially distributed are arranged in the inner cylinder body 15 along the axial direction, and the heat exchange tubes 17 are supported by the partition plates 16 with holes; a heat exchange jacket 18 is arranged between the outer shell 14 and the inner cylinder 15, a discharge pipe and a feed pipe are respectively arranged at the positions, close to a feed port and a discharge port of the heat exchanger cylinder, of the heat exchange jacket 18, preferably, the number of the discharge pipe and the number of the feed pipe of the heat exchange jacket 18 are 2; the discharge pipe and the feed pipe of the heat exchange pipe 17 are respectively arranged at the positions close to the feed inlet and the discharge outlet of the heat exchanger barrel, and the two ends of the heat exchange pipe 17 are respectively communicated with the discharge pipe and the feed pipe of the heat exchange pipe 17 through a ring pipe 29. The feed pipe of the heat exchange jacket 18 is used for introducing a material with a relatively low temperature, and the material is led out from the discharge pipe of the heat exchange jacket 18 after heat exchange is completed through the heat exchange jacket 18. The feed pipe of the heat exchange pipe 17 is used for introducing another material with relatively low temperature, and the material is led out from the discharge pipe of the heat exchange pipe 17 after heat exchange is completed through the heat exchange pipe 17. A plurality of porcelain balls 19 are respectively arranged inside the inner cylinder body 15 and the heat exchange jacket 18, and the porcelain balls 19 are respectively positioned between the supporting plates 20 and between the ring plates 22. The perforated clapboard 16 is provided with a plurality of holes, the aperture of the perforated clapboard is smaller than the diameter of the porcelain ball 19, and the middle part of the perforated clapboard 16 is provided with a manhole which can be opened and closed; a plurality of supporting plates 20 are welded inside the inner cylinder body 15 and are arranged at certain intervals, and through holes are formed in the middle of the supporting plates 20 and are used for later-stage internal maintenance and replacement of parts; the rest parts of the supporting plate 20 are provided with a plurality of holes, and the aperture is smaller than the diameter of the porcelain ball 19; the inner welding part of the support plate 20 and the inner cylinder 15 is provided with a semicircular hole to prevent materials from accumulating dead angles. A plurality of ring plates 22 are arranged between the inner cylinder 15 and the outer shell 14, and the ring plates 22 are provided with a plurality of holes with the diameter smaller than that of the porcelain balls 19.
In the working process, after reaction materials with relatively high temperature enter the heat exchanger, the heat exchanger rotates at the speed of 4r/min-5r/min under the action of the driving mechanism, so that heat energy is rapidly transferred to two materials with relatively low temperature entering in a countercurrent manner, the heat energy is ensured to be fully recycled, and meanwhile, a plurality of ceramic balls 19 arranged between the supporting plates 20 and between the annular plates 22 are subjected to rolling friction, so that scales in the inner cylinder body 15 and the heat exchange jacket 18 are removed, and the accumulation of a scale layer is prevented; the second spiral shoveling plate 21 close to the discharge port of the heat exchanger cylinder body timely and rotatably conveys the accumulated reaction materials with relatively high temperature after heat exchange out of the heat exchanger to prevent scaling.

Claims (10)

1. The production line for extracting nickel and cobalt from the laterite-nickel ore with the anti-scaling function is characterized by comprising a device for acid leaching of the laterite-nickel ore, an iron removal reaction device and a heat exchanger; the device for acid leaching of the laterite-nickel ore comprises a vertical reaction tank (1) and a horizontal reactor (2), wherein the vertical reaction tank (1) is installed at a position close to one end of the horizontal reactor (2), a material output pipe (3) is connected at a position close to the other end of the horizontal reactor (2), a feeding hole is formed in the upper part of the vertical reaction tank (1), the vertical reaction tank (1) is provided with a first stirring mechanism, and the horizontal reactor (2) is provided with a second stirring mechanism; the iron removal reaction device and the heat exchanger both comprise a supporting mechanism, a barrel body capable of rotating on the supporting mechanism and a driving mechanism for driving the barrel body to rotate, and a plurality of partition plates (11) are arranged on the inner wall of the barrel body (10) of the iron removal reaction device; the heat exchanger comprises a barrel body and a heat exchanger, wherein the barrel body comprises an outer shell (14) and an inner barrel body (15) positioned in the outer shell (14), perforated partition plates (16) are respectively arranged at positions close to two ends of the inner barrel body (15), a plurality of heat exchange tubes (17) which are circumferentially distributed are arranged in the inner barrel body (15) along the axial direction, and the heat exchange tubes (17) are supported by the perforated partition plates (16); a heat exchange jacket (18) is arranged between the outer shell (14) and the inner cylinder (15), and a plurality of porcelain balls (19) are arranged inside the inner cylinder (15) and inside the heat exchange jacket (18); and the two ends of the barrel of the iron removal reaction device, the two ends of the barrel of the heat exchanger, the two ends of the heat exchange tube (17) and the two ends of the heat exchange jacket (18) are respectively provided with a feeding hole and a discharging hole.
2. The production line of claim 1, wherein the first stirring mechanism comprises a first adjustable-speed motor (4) and a vertical stirring column (5); the first speed regulating motor (4) is arranged at the top of the vertical reaction tank (1), and the vertical stirring column (5) is positioned in the vertical reaction tank (1) and is connected with the first speed regulating motor (4); the second stirring mechanism comprises a second speed regulating motor (6) and a horizontal stirring column (7); the second speed regulating motor (6) is located at one end of the horizontal reactor (2) and close to the vertical reaction tank (1), the horizontal stirring column (7) is located inside the horizontal reactor (2) and connected with the second speed regulating motor (6), and helical blades are installed on the surface of the vertical stirring column (5) and the surface of the horizontal stirring column (7).
3. The production line according to claim 2, characterized in that the horizontal mixing column (7) is supported by a first bearing support (8) and a second bearing support (9), the first bearing support (8) and the second bearing support (9) being located at both ends of the horizontal reactor (2).
4. The production line of claim 2, characterized in that the horizontal mixing column (7) is provided with two helical blades with opposite curved surfaces on the surface.
5. The production line according to claim 1, characterized in that a flow distribution plate (12) is arranged inside the barrel (10) of the iron removal reaction device at a position close to the feeding hole of the iron removal reaction device, the flow distribution plate (12) is welded with the inner wall of the barrel (10) of the iron removal reaction device, and the flow distribution plate (12) is provided with a plurality of through holes; and a first spiral shoveling plate (13) is arranged on the inner wall of the barrel (10) of the iron removal reaction device at a position close to a discharge hole of the iron removal reaction device.
6. The production line of claim 5, wherein the flow distribution plate (12) is a hollow conical cylinder, a plurality of through holes are arranged on the side wall of the hollow conical cylinder, and the large opening end of the hollow conical cylinder faces the discharge hole of the iron removal reaction device.
7. The production line according to claim 1, characterized in that said perforated partition (16) is provided with a plurality of holes and with a diameter smaller than the diameter of said ceramic balls (19); the middle part of the clapboard (16) with holes is provided with a manhole which can be opened and closed.
8. The production line of claim 1, characterized in that a plurality of support plates (20) are welded inside the inner cylinder (15), a through hole is arranged in the middle of each support plate (20), a plurality of holes are arranged on the rest parts of each support plate, and the hole diameter of each support plate is smaller than the diameter of the porcelain ball (19); and a semicircular hole is formed in the welding part between the support plate (20) and the inner part of the inner cylinder body (15).
9. A production line according to claim 1, characterised in that the outer hull (14) is provided with a second spiral flight (21) on the inner wall near both ends.
10. The production line according to claim 1, characterized in that a plurality of annular plates (22) are provided between the inner cylinder (15) and the outer casing (14), the annular plates (22) being provided with a plurality of holes and having a diameter smaller than the diameter of the porcelain balls (19).
CN201811311306.3A 2018-11-06 2018-11-06 Production line with anti-scaling function for extracting nickel and cobalt from laterite-nickel ore Active CN111139355B (en)

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Application Number Priority Date Filing Date Title
CN201811311306.3A CN111139355B (en) 2018-11-06 2018-11-06 Production line with anti-scaling function for extracting nickel and cobalt from laterite-nickel ore
PCT/CN2018/114818 WO2020093367A1 (en) 2018-11-06 2018-11-09 Production line used for extracting nickel and cobalt from laterite nickel ore and having anti-scaling function

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Application Number Priority Date Filing Date Title
CN201811311306.3A CN111139355B (en) 2018-11-06 2018-11-06 Production line with anti-scaling function for extracting nickel and cobalt from laterite-nickel ore

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CN111139355A true CN111139355A (en) 2020-05-12
CN111139355B CN111139355B (en) 2022-08-12

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113088715A (en) * 2021-04-15 2021-07-09 攀钢集团攀枝花钢铁研究院有限公司 System for realizing continuous leaching of vanadium slag
CN113680307A (en) * 2021-09-09 2021-11-23 金川集团股份有限公司 Horizontal rotary reaction device
CN115779844A (en) * 2023-02-09 2023-03-14 原初科技(北京)有限公司 Slag reactor and slag method

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