CN114990637B - Suspension electrolytic tank and electrolytic conversion system - Google Patents
Suspension electrolytic tank and electrolytic conversion system Download PDFInfo
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- CN114990637B CN114990637B CN202210684336.9A CN202210684336A CN114990637B CN 114990637 B CN114990637 B CN 114990637B CN 202210684336 A CN202210684336 A CN 202210684336A CN 114990637 B CN114990637 B CN 114990637B
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- 239000000725 suspension Substances 0.000 title claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 69
- 239000002002 slurry Substances 0.000 claims abstract description 53
- 238000005868 electrolysis reaction Methods 0.000 claims description 18
- 210000004027 cell Anatomy 0.000 claims description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 13
- 238000004537 pulping Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 210000005056 cell body Anatomy 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000002245 particle Substances 0.000 abstract description 3
- 230000027756 respiratory electron transport chain Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 239000003792 electrolyte Substances 0.000 description 7
- 239000010949 copper Substances 0.000 description 6
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 5
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 229910001431 copper ion Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005363 electrowinning Methods 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 229910000464 lead oxide Inorganic materials 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- ZACYQVZHFIYKMW-UHFFFAOYSA-N iridium titanium Chemical compound [Ti].[Ir] ZACYQVZHFIYKMW-UHFFFAOYSA-N 0.000 description 1
- 239000012633 leachable Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- DPGAAOUOSQHIJH-UHFFFAOYSA-N ruthenium titanium Chemical compound [Ti].[Ru] DPGAAOUOSQHIJH-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/18—Electrolytic production, recovery or refining of metals by electrolysis of solutions of lead
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/06—Operating or servicing
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention provides a suspension electrolytic cell and an electrolytic conversion system, which relate to the technical field of electrolytic conversion, and the suspension electrolytic cell provided by the invention comprises the following components: the electrolytic tank comprises an electrolytic tank body, a stirring assembly, a polar plate assembly, a diaphragm assembly and a supporting assembly; the support component is arranged in the electrolytic tank body, the stirring component is inserted in the electrolytic tank body, and the polar plate component and the diaphragm component are respectively arranged in the support component. The suspension electrolytic tank and the electrolytic conversion system provided by the invention can strengthen slurry flow and collision electron transfer between pulp particles and the polar plate through the stirring component, can be widely applied to various pulp systems, and can still perform high-efficiency electrolytic conversion on insoluble or slightly soluble pulp systems.
Description
Technical Field
The invention relates to the technical field of electrolytic conversion, in particular to a suspension electrolytic tank and an electrolytic conversion system.
Background
The ore leaching, the purifying of the leaching solution, the electrolytic deposition and other processes are combined in one electrolytic tank by adopting the ore pulp electrolysis technology, but the processes are limited by factors such as equipment level and the like, and the direct electrolytic conversion is difficult to carry out on a indissolvable or slightly soluble ore pulp system.
Disclosure of Invention
The invention aims to provide a suspension electrolytic tank and an electrolytic conversion system, which can be widely applied to the high-efficiency electrolytic conversion of various ore pulp systems.
In a first aspect, the present invention provides a suspension cell comprising: the electrolytic tank comprises an electrolytic tank body, a stirring assembly, a polar plate assembly, a diaphragm assembly and a supporting assembly;
the support component is arranged inside the electrolytic tank body, the stirring component is inserted into the electrolytic tank body, and the polar plate component and the diaphragm component are respectively arranged in the support component.
With reference to the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the bottom of the electrolytic tank body is configured as a flat bottom or a flat cone bottom;
the flat cone bottom comprises: the diameter of the cone decreases from top to bottom, the bottom plate is connected to the bottom end of the cone, and the ratio of the diameter of the bottom plate to the diameter of the electrolytic tank body is 0.5-0.8.
With reference to the first possible implementation manner of the first aspect, the present invention provides a second possible implementation manner of the first aspect, wherein a taper angle of the taper portion is 15 ° to 60 °.
With reference to the first aspect, the present invention provides a third possible implementation manner of the first aspect, wherein the electrolytic tank body is provided with a slurry overflow port, a slurry inlet and a slurry discharge port, and the slurry overflow port, the slurry inlet and the slurry discharge port are sequentially arranged at intervals from top to bottom.
With reference to the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the polar plate assembly includes: the anode plate, the cathode plate, the inner annular conductive beam and the outer annular conductive beam;
the outer annular conductive beam is arranged outside the inner annular conductive beam in a surrounding mode, and the inner annular conductive beam and the outer annular conductive Liang Tongzhou are arranged on the outer annular conductive beam in a surrounding mode;
a plurality of anode plates and a plurality of cathode plates are arranged between the inner annular conductive beam and the outer annular conductive beam;
along the circumferential direction of the inner annular conductive beam, the anode plates and the cathode plates are alternately distributed at intervals one by one.
With reference to the fourth possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein the diaphragm assembly includes a plurality of diaphragm pockets, any two adjacent diaphragm pockets have a gap therebetween, and the anode plate or the cathode plate is inserted between two adjacent diaphragm pockets, or the anode plate or the cathode plate is inserted inside the diaphragm pockets.
With reference to the first aspect, the present invention provides a sixth possible implementation manner of the first aspect, wherein the support assembly includes: a plurality of support columns and a plurality of chucks;
the chucks are coaxial and are arranged at intervals along the axis;
the support columns are connected to the chucks along the axial direction, and the support columns are arranged at intervals along the circumferential direction of the chucks;
the polar plate component and the diaphragm component are respectively connected to the chuck.
With reference to the sixth possible implementation manner of the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein the chuck is provided with a bayonet matched with the electrolytic tank body.
With reference to the first aspect, the present invention provides an eighth possible implementation manner of the first aspect, wherein the stirring assembly includes: the stirring device comprises a motor, a speed reducer, a bracket, a stirring paddle shaft, a first stirring paddle and a second stirring paddle;
the motor is in transmission connection with the speed reducer, the speed reducer is installed on the support, and the speed reducer with the stirring paddle shaft is in transmission connection, first stirring paddle with the second stirring paddle connect in the stirring paddle shaft, and follow the axial interval setting of stirring paddle shaft.
In a second aspect, the present invention provides an electrolytic conversion system comprising: a slurry stirring tank, a slurry pump, an overflow slurry tank, a slurry discharge tank and the suspension electrolytic tank provided in the first aspect;
the inlet of the pulp pump is communicated with the pulping stirring tank, the outlet of the pulp pump is communicated with the electrolytic tank body, and the overflow pulp tank and the pulp discharging tank are respectively communicated with the electrolytic tank body.
The embodiment of the invention has the following beneficial effects: the support component is arranged in the electrolytic tank body, the stirring component is inserted into the electrolytic tank body, the polar plate component and the diaphragm component are respectively arranged in the support component, slurry flow and collision electron transfer between slurry particles and polar plates can be enhanced through the stirring component, the device can be widely applied to various slurry systems, and high-efficiency electrolytic conversion can be still carried out on insoluble or slightly soluble slurry systems.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the description of the embodiments or the related art will be briefly described, and it is apparent that the drawings in the description below are some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic view of a suspension electrolytic cell provided by an embodiment of the invention;
FIG. 2 is a schematic view of a first cell body of a suspension cell according to an embodiment of the present invention;
FIG. 3 is a schematic diagram II of an electrolytic cell body of a suspension electrolytic cell according to an embodiment of the present invention;
FIG. 4 is a schematic illustration I of a plate assembly and a diaphragm assembly of an electrolytic cell body of a suspension electrolytic cell provided by an embodiment of the invention;
FIG. 5 is a schematic diagram II of a plate assembly and a diaphragm assembly of an electrolytic cell body of a suspension electrolytic cell according to an embodiment of the present invention;
FIG. 6 is a schematic view of a diaphragm assembly of an electrolyzer body of a suspension electrolyzer provided by an embodiment of the invention;
FIG. 7 is a bottom view of a support assembly for a suspended electrolysis cell according to an embodiment of the invention;
FIG. 8 is a schematic view of a stirring assembly of an electrolyzer body of a suspension electrolyzer provided by an embodiment of the invention;
FIG. 9 is a schematic diagram of an electrolytic conversion system according to an embodiment of the present invention.
Icon: 1-an electrolytic tank body; 11-slurry inlet; 12-a pulp overflow port; 13-a paddle discharging port; 110-flat bottom; 120-flat cone bottom; 121-taper; 122-a bottom plate; 2-a stirring assembly; 21-an electric motor; 22-speed reducer; 23-a bracket; 24-stirring paddle shaft; 25-a first stirring paddle; 26-a second stirring paddle; 3-polar plate assembly; 31-anode plate; 32-a cathode plate; 33-an inner annular conductive beam; 34-an outer annular conductive beam; a 4-diaphragm assembly; 41-a support structure; 42-diaphragm bag; 5-a support assembly; 51-supporting columns; 52-a chuck; 53-bayonet; 54-a limiting part; 6-pulping stirring tank; 7-a pulp pump; 8-overflow slurry tank; 9-a slurry discharge groove; 10-power supply.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. 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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Physical quantities in the formulas, unless otherwise noted, are understood to be basic quantities of basic units of the international system of units, or derived quantities derived from the basic quantities by mathematical operations such as multiplication, division, differentiation, or integration.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, a suspension electrolytic cell provided by an embodiment of the present invention includes: the electrolytic tank comprises an electrolytic tank body 1, a stirring assembly 2, a polar plate assembly 3, a diaphragm assembly 4 and a supporting assembly 5; the support component 5 is arranged inside the electrolytic tank body 1, the stirring component 2 is inserted into the electrolytic tank body 1, and the polar plate component 3 and the diaphragm component 4 are respectively arranged in the support component 5.
In the embodiment, the stirring assembly 2 is adopted to stir the slurry in the electrolytic tank body 1, so that the fluidity of the slurry is enhanced, collision electrons between slurry particles and the polar plates are transferred, and the current efficiency is higher. The method can be widely applied to the electrolysis of the pulp of the leachable raw materials such as sulphide ores, waste circuit boards and the like, can be applied to various electrolysis systems such as the direct controlled electric conversion of insoluble substances such as metal-containing waste liquid electrowinning depletion, waste lead plaster, lead sulfate slag and the like, and has wide application prospect.
As shown in fig. 2, the bottom of the cell body 1 is configured as a flat bottom 110;
alternatively, as shown in fig. 3, the bottom of the electrolytic cell body 1 is configured as a flat cone bottom 120; the flat cone base 120 includes: the diameter of the cone 121 and the bottom plate 122 are gradually decreased from top to bottom, the bottom plate 122 is connected to the bottom end of the cone 121, the ratio of the diameter of the bottom plate 122 to the diameter of the electrolytic tank body 1 is 0.5-0.8, the cone angle of the cone 121 is 15-60 degrees, and the flat cone bottom 120 is adopted, so that the deposition of substances in slurry can be slowed down, and the slurry can be uniformly dispersed along the plumb direction through stirring.
As shown in fig. 1, 2, 3 and 8, the electrolytic tank body 1 is provided with a slurry overflow port 12, a slurry inlet 11 and a slurry discharge port 13, and the slurry overflow port 12, the slurry inlet 11 and the slurry discharge port 13 are sequentially arranged at intervals from top to bottom.
The slurry in the slurry stirring tank 6 enters the electrolytic tank body 1 through the slurry inlet 11, the slurry overflowed through the overflow slurry outlet 12 can flow into the overflow slurry tank 8, and the slurry discharged through the slurry discharge outlet 13 can flow into the slurry discharge tank 9.
As shown in fig. 1, 4 and 5, the plate assembly 3 includes: anode plate 31, cathode plate 32, inner annular conductive beam 33 and outer annular conductive beam 34; the outer annular conductive beam 34 is arranged outside the inner annular conductive beam 33 in a surrounding manner, and the inner annular conductive beam 33 and the outer annular conductive beam 34 are coaxial; a plurality of anode plates 31 and a plurality of cathode plates 32 are arranged between the inner annular conductive beam 33 and the outer annular conductive beam 34; the anode plates 31 and the cathode plates 32 are alternately arranged at intervals one by one along the circumferential direction of the inner annular conductive beam 33.
Specifically, the anode plate 31 and the cathode plate 32 are all distributed along the vertical direction, referring to the first polar plate assembly 3 shown in fig. 4, the extending lines along the axial direction of the inner annular conductive beam 33, which are along the surfaces of the anode plate 31 and the cathode plate 32 and are close to the axial direction of the inner annular conductive beam 33, meet at the axial line of the inner annular conductive beam 33, namely: the anode plate 31 and the cathode plate 32 each extend in the radial direction of the inner annular conductive beam 33. Alternatively, referring to the second plate assembly 3 shown in fig. 5, the anode plates 31 and the cathode plates 32 are arranged in a ring-shaped obliquely divergent interval, and the anode plates 31 and the cathode plates 32 are inclined in a clockwise direction from the approaching axis to the departing axis, thereby forming the anode plates 31 and the cathode plates 32 at angles with respect to the radial line, respectively. The anode plate 31, the cathode plate 32 and the diaphragm bag 42 are all arranged in an inclined divergent mode, and the area of the polar plate is large under the same volume, so that the productivity is high. The anode plate 31 is made of one or more of stainless steel, pure titanium, lead alloy, graphite, titanium iridium and titanium ruthenium, the cathode plate 32 is made of one or more of stainless steel, pure titanium, copper, lead and the like, and the anode plate 31 and the cathode plate 32 are both in a plate-shaped or net-shaped structure. In addition, when the anode plate 31 and the cathode plate 32 adopt single-row polar plates, the electrode plate can be formed by connecting two or more polar plates in parallel, and a space is reserved between the two polar plates or the anode plate and the cathode plate are in a grid structure so as to reduce baffling resistance to ore pulp.
As shown in fig. 1, 4, 5 and 6, the separator assembly 4 includes a plurality of separator bags 42, a space is provided between any adjacent two of the separator bags 42, the anode plate 31 or the cathode plate 32 is inserted between the adjacent two of the separator bags 42, and the anode plate 31 or the cathode plate 32 is inserted inside the separator bags 42.
Specifically, the plurality of diaphragm bags 42 are respectively connected to the supporting structure 41, and the supporting structure 41 adopts a long square frame structure, and is made of one or more of PP, PVC, stainless steel lining PP, stainless steel lining polytetrafluoroethylene and the like. The diaphragm bags 42 are made of acid-resistant filter cloth, and each single-row diaphragm bag 42 is formed by connecting two or more diaphragm bags in parallel, and a space is reserved between the diaphragm bags to reduce baffling resistance to ore pulp. A polar plate is inserted between two adjacent diaphragm bags 42 or is arranged inside the diaphragm bags 42, and the polar plate can be selected as the anode plate 31 or the cathode plate 32 according to different treatment raw materials and electrolytic systems.
As shown in fig. 1 and 7, the support assembly 5 includes: a plurality of support columns 51 and a plurality of chucks 52; the plurality of chucks 52 are coaxial and spaced apart along the axis; the support columns 51 are axially connected to a plurality of chucks 52, and the plurality of support columns 51 are arranged at intervals along the circumferential direction of the chucks 52; the plate assembly 3 and the diaphragm assembly 4 are connected to chucks 52, respectively.
Specifically, the support column 51 is connected with the chuck 52 through a fastener, the chuck 52 is provided with a bayonet 53 which is matched with the electrolytic tank body 1, the bayonet 53 can be configured into a protruding part protruding away from the axis direction, and the protruding part can be matched with a notch on the inner side wall of the electrolytic tank body 1. In addition, the chuck 52 is further provided with a limiting part 54, and the limiting part 54 is matched with the polar plate assembly 3, so that the polar plate assembly 3 is circumferentially fixed relative to the supporting assembly 5.
As shown in fig. 1 and 8, the stirring assembly 2 includes: a motor 21, a speed reducer 22, a bracket 23, a stirring paddle shaft 24, a first stirring paddle 25 and a second stirring paddle 26; the motor 21 is in transmission connection with the speed reducer 22, the speed reducer 22 is installed on the support 23, the speed reducer 22 is in transmission connection with the stirring paddle shaft 24, and the first stirring paddle 25 and the second stirring paddle 26 are connected to the stirring paddle shaft 24 and are arranged at intervals along the axial direction of the stirring paddle shaft 24. The first stirring paddles 25 may be at least two, and a plurality of first stirring paddles 25 may be disposed at intervals and above the second stirring paddles 26. The first stirring paddle 25 adopts a flat paddle structure, and can be provided with multistage stirring paddles according to the size, depth and pulp specific gravity of the tank body, and the distribution position of the first stirring paddle 25 is adjusted along the axial direction of the stirring paddle shaft 24. The second stirring paddle 26 adopts an inclined upward rotation structure, and substances deposited at the bottom of the inner cavity of the electrolytic tank body 1 can be floated upward through the second stirring paddle 26.
As shown in fig. 9, an electrolytic conversion system provided in an embodiment of the present invention includes: a slurrying stirring tank 6, a slurry pump 7, an overflow slurry tank 8, a slurry discharging tank 9 and a suspension electrolytic tank provided by the embodiment; the inlet of the pulp pump 7 is communicated with the pulping stirring tank 6, the outlet of the pulp pump 7 is communicated with the electrolytic tank body 1, and the overflow pulp tank 8 and the pulp discharging tank 9 are respectively communicated with the electrolytic tank body 1.
In the embodiment of the invention, the motor 21 and the polar plate assembly 3 are respectively connected with the power supply 10, and a constant current control mode is preferred when the electrolysis of the sulphide ore pulp is carried out; in the low-solubility metal liquid electrowinning depletion and direct electrolytic conversion under a indissolvable/micro-solution system, a constant voltage control mode is preferred, so that side reactions are conveniently inhibited, and the current efficiency is improved; when the low-solubility metal liquid electro-deposition is depleted, corresponding metal powder can be added as a forward-pull cathode to enlarge/extend the effective cathode area.
As shown in fig. 1 and 9, application scenario one: the application of the suspension electrolytic cell in sulfide pulp electrolysis is further described by taking lead concentrate pulp electrolysis as an example. Firstly, installing cathode and anode assemblies in a suspension electrolytic tank, placing a cathode plate 32 in a diaphragm bag 42 to form that the cathode plate 32 and an anode plate 31 are uniformly and alternately distributed in the electrolytic tank body 1; pulping lead concentrate and electrolyte (40 g/L of hydrochloric acid, 100g/L to 150g/L of sodium chloride/calcium chloride and 40g/L to 60g/L of lead) in a pulping tank, transferring the slurry into a suspension electrolytic tank through a pump, electrifying to electrolyze, oxidizing and dissolving lead concentrate ore pulp in an anode region, leading lead ions into the electrolyte, and separating out lead ions in the electrolyte on a cathode plate 32 in a diaphragm bag 42; after the electrolysis is completed, ore pulp is discharged, filtered filtrate is returned to a slurrying system for recycling, and the filter residues are discharged outwards for floatation to recycle sulfur and rare noble metals; the cathode plate 32 is taken out, and the cathode lead is obtained through cleaning and stripping.
And (2) an application scene II: the application of the suspension electrolytic tank in the waste circuit board pulp electrolysis is further described by taking the waste circuit board pulp electrolysis as an example. Firstly, installing a cathode and anode assembly in a suspension electrolytic tank, placing a cathode plate 32 in a diaphragm bag to form that the cathode plate 32 and an anode plate 31 are uniformly and alternately distributed in a tank body 1 of the electrolytic tank; the scrap of the waste circuit board and electrolyte (sulfuric acid 20-100 g/L and copper 20-60 g/L) are pulped in a pulpifying tank, and the pulpifying is transferred into a suspension electrolytic tank through a pump and is electrified for electrolysis. Copper in the waste circuit board is oxidized and dissolved in the anode region, copper ions enter electrolyte, and the copper ions in the electrolyte are separated out on the cathode plate 32 in the diaphragm bag 42; after the electrolysis is completed, ore pulp is discharged, filtered filtrate is returned to a slurrying system for recycling, and waste plastic scraps, tin, silver, gold and other metals are recovered from the filter residue; the cathode plate 32 is taken out, and the cathode copper is obtained through cleaning and stripping.
And (3) an application scene III: the use of the suspension cell in the purification of low metal solutions will be further described by taking electrowinning of copper-containing solutions as an example. Firstly, installing a cathode-anode assembly in a suspension electrolytic tank, placing anode plates 31 in diaphragm bags 42 to form anode plates 31 and cathode plates 32 which are uniformly and alternately distributed on a tank body; the copper-containing solution is pumped into a suspension electrolytic tank, and a certain amount of copper powder is supplemented at the same time, and the electrolysis is carried out by electrifying. Oxygen is separated out from the anode in the diaphragm bag 42, the cathode plate 32 and the added copper powder form a cis-pull cathode system, and copper ions are separated out on the surface of the copper powder; and after the electrolysis is finished, discharging slurry, discharging the filtered copper-removed lean solution, and removing clean solution (Cu is less than 0.5 g/L), wherein the copper powder can be continuously used until reaching a certain granularity and then is opened (stirring load is increased after coarsening).
And application scene IV: for the electrolytic conversion of the slightly soluble/insoluble system, the application of the suspension electrolytic tank in the direct conversion of the slightly soluble/insoluble system is further described by taking the electrolytic conversion of lead-containing materials such as lead sulfate, waste lead paste and the like into an example of a dilute sulfuric acid system. Firstly, installing a cathode-anode assembly in a suspension electrolytic tank, placing anode plates 31 in diaphragm bags 42, and uniformly and alternately distributing anode plates 31 and cathode plates 32 on a tank body; and (3) pulping the lead sulfate slag and the waste lead paste through a pulping tank, pumping the pulpified lead slag and the waste lead paste into a suspension electrolytic tank, and electrifying the suspension electrolytic tank to carry out electrolytic conversion. Under the stirring action, the cathode plate 32 collides with insoluble matters such as lead sulfate, lead oxide, lead dioxide and the like to promote the lead sulfate, lead oxide, lead dioxide and the like to obtain electrons and reduce the electrons into metallic lead, and oxygen is separated from the anode in the diaphragm bag 42; after the electrolytic conversion is completed, discharging slurry, filtering to obtain sponge lead powder and filtrate, and returning most of dilute sulfuric acid electrolyte (sulfuric acid 10-50 g/L) to a pulping system for recycling, wherein part of dilute sulfuric acid generated in the lead sulfate conversion process is subjected to open-circuit purification treatment.
Constant current electrolysis is preferably adopted in the first application scene and the second application scene, and constant voltage electrolysis is preferably adopted in the third application scene and the fourth application scene in order to avoid hydrogen evolution side reaction in the later stage of electrolysis and reduce the electrical efficiency.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. A suspension cell comprising: the electrolytic tank comprises an electrolytic tank body (1), a stirring assembly (2), a polar plate assembly (3), a diaphragm assembly (4) and a supporting assembly (5);
the support component (5) is arranged in the electrolytic tank body (1), the stirring component (2) is inserted into the electrolytic tank body (1), and the polar plate component (3) and the diaphragm component (4) are respectively arranged in the support component (5);
the bottom of the electrolytic tank body (1) is configured into a flat cone bottom (120), and the flat cone bottom (120) comprises: the diameter of the cone part (121) is reduced from top to bottom, the bottom plate (122) is connected to the bottom end of the cone part (121), and the ratio of the diameter of the bottom plate (122) to the diameter of the electrolytic tank body (1) is 0.5-0.8;
the electrolytic tank body (1) is provided with a slurry overflow port (12), a slurry inlet (11) and a slurry discharge port (13), wherein the slurry overflow port (12), the slurry inlet (11) and the slurry discharge port (13) are sequentially arranged at intervals from top to bottom, and the slurry discharge port (13) is arranged at the cone part (121);
the pole plate assembly (3) comprises: an anode plate (31), a cathode plate (32), an inner annular conductive beam (33) and an outer annular conductive beam (34);
the outer annular conductive beam (34) is arranged outside the inner annular conductive beam (33) in a surrounding mode, and the inner annular conductive beam (33) and the outer annular conductive beam (34) are coaxial;
a plurality of anode plates (31) and a plurality of cathode plates (32) are arranged between the inner annular conductive beam (33) and the outer annular conductive beam (34);
the anode plates (31) and the cathode plates (32) are alternately distributed at intervals one by one along the circumferential direction of the inner annular conductive beam (33);
the stirring assembly (2) comprises: a motor (21), a speed reducer (22), a bracket (23), a stirring paddle shaft (24), a first stirring paddle (25) and a second stirring paddle (26);
the motor (21) is in transmission connection with the speed reducer (22), the speed reducer (22) is arranged on the bracket (23), the speed reducer (22) is in transmission connection with the stirring paddle shaft (24), and the first stirring paddle (25) and the second stirring paddle (26) are connected with the stirring paddle shaft (24) and are arranged at intervals along the axial direction of the stirring paddle shaft (24);
the first stirring paddles (25) are configured into a flat paddle structure, and the diaphragm assembly (4) is arranged around the first stirring paddles (25);
the second stirring paddle (26) is configured into an inclined upward rotation structure, and the second stirring paddle (26) is positioned below the diaphragm assembly (4);
the diaphragm assembly (4) comprises a plurality of diaphragm bags (42), and a gap is formed between any two adjacent diaphragm bags (42);
the anode plate (31) or the cathode plate (32) is inserted between two adjacent diaphragm bags (42), or the anode plate (31) or the cathode plate (32) is inserted inside the diaphragm bags (42).
2. A suspension cell according to claim 1, characterized in that the cone angle of the cone (121) is 15 ° to 60 °.
3. Suspension cell according to claim 1, characterized in that the support assembly (5) comprises: a plurality of support columns (51) and a plurality of chucks (52);
a plurality of chucks (52) are coaxial and spaced apart along the axis;
the support columns (51) are axially connected to a plurality of chucks (52), and the support columns (51) are arranged at intervals along the circumferential direction of the chucks (52);
the polar plate assembly (3) and the diaphragm assembly (4) are respectively connected to the chuck (52).
4. A suspension cell according to claim 3, characterized in that the chuck (52) is provided with a bayonet (53) adapted to the cell body (1).
5. An electrolytic conversion system, comprising: a slurrying stirred tank (6), a pulp pump (7), an overflow slurry tank (8), a slurry discharge tank (9) and a suspension electrolysis tank according to any of claims 1-4;
the inlet of the pulp pump (7) is communicated with the pulping stirring tank (6), the outlet of the pulp pump (7) is communicated with the electrolytic tank body (1), and the overflow pulp tank (8) and the pulp discharging tank (9) are respectively communicated with the electrolytic tank body (1).
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