CN116287727B - Solid-liquid separation equipment for heavy metal-containing dead catalyst recovery process - Google Patents
Solid-liquid separation equipment for heavy metal-containing dead catalyst recovery process Download PDFInfo
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- CN116287727B CN116287727B CN202310593435.0A CN202310593435A CN116287727B CN 116287727 B CN116287727 B CN 116287727B CN 202310593435 A CN202310593435 A CN 202310593435A CN 116287727 B CN116287727 B CN 116287727B
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- 239000003054 catalyst Substances 0.000 title claims abstract description 46
- 238000011084 recovery Methods 0.000 title claims abstract description 41
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 32
- 238000000926 separation method Methods 0.000 title claims abstract description 29
- 239000007788 liquid Substances 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000001556 precipitation Methods 0.000 claims abstract description 21
- 150000003839 salts Chemical class 0.000 claims abstract description 18
- 239000002699 waste material Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims abstract description 9
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims abstract description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 5
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 5
- 238000002425 crystallisation Methods 0.000 claims abstract description 5
- 230000008025 crystallization Effects 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 99
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 16
- 239000013078 crystal Substances 0.000 claims description 14
- 239000003929 acidic solution Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 26
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 16
- 238000002156 mixing Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/009—General processes for recovering metals or metallic compounds from spent catalysts
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B28/00—Production of homogeneous polycrystalline material with defined structure
- C30B28/04—Production of homogeneous polycrystalline material with defined structure from liquids
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B7/00—Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention belongs to the technical field of chemical industry, in particular to solid-liquid separation equipment for a heavy metal-containing waste catalyst recovery process, which comprises the following recovery steps: s2, introducing the filtered acid solution into a precipitation tank, adding ammonia water or ammonium salt, cooling to 3-10 ℃ for crystallization, preparing salts, crystallizing the salts along the surfaces of conical seed rods, and allowing the salts to grow upwards by using a pulling method. This contain heavy metal dead catalyst recovery technology and use solid-liquid separation equipment, through setting up coupling mechanism, be convenient for mobile device drives the seed pole and realizes the removal action about, makes vertical self-driven slide rail drive seed pole and reciprocates when the installation piece is connected with the connecting block with the disconnection of horizontal self-driven slide rail upper slide block, and the connection disconnection of installation piece and connecting block and with horizontal self-driven slide rail upper slide block makes horizontal self-driven slide rail drive seed pole and moves about.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process.
Background
The chemical reaction rate of reactants can be changed (both increased and decreased) without changing the chemical equilibrium in the chemical reaction, and the mass and chemical properties of the reactants are not changed before and after the chemical reaction.
The invention discloses a production process of automotive urea containing a nanoscale catalyst, which has the advantages that the continuous purification process and the ammonia content reduction process are optimized by adding the catalyst A, so that the problem of heavy metal environmental pollution of automotive urea can be effectively reduced, the efficiency of degrading and absorbing nitrogen oxides of the automotive urea is improved, and the problem of low-temperature crystallization is solved. The catalyst A added in the process has the characteristics of high catalytic activity, wide temperature window, quick ignition and the like.
However, the catalyst a in the above patent, such as sulfuric acid and a catalyst containing nickel, is often buried after being used, so that rare metals such as tungsten and molybdenum contained in the catalyst a cause heavy metal pollution to soil, and meanwhile, resources are wasted greatly, and meanwhile, secondary pollution exists in the technology of recycling the catalyst a, so that the added value of the product is low, the market driving force is small, and thus, the difficult problems of heavy metal pollution and the like cannot be thoroughly solved, and therefore, a solid-liquid separation device for a heavy metal-containing waste catalyst recycling process is needed.
Disclosure of Invention
Based on the technical problem that the existing heavy metal-containing waste catalyst is easy to cause heavy metal pollution in the treatment process after being used, the invention provides solid-liquid separation equipment for a heavy metal-containing waste catalyst recovery process.
The invention provides solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process, which comprises the following recovery steps:
s1, pouring the collected waste catalyst into a stirring tank through a feed inlet, dissolving with water, stirring uniformly to form an acidic solution, and filtering;
s2, introducing the filtered acid solution into a precipitation tank, adding ammonia water or ammonium salt, cooling to 3-10 ℃ for crystallization, preparing salts, crystallizing the salts along the surfaces of conical seed rods, and allowing the salts to grow upwards by using a pulling method;
s3, transporting the salt crystals after the growth to a recovery tank through seed rods, and falling into the recovery tank.
The solid-liquid separation equipment for the heavy metal-containing dead catalyst recovery process comprises a stirring mechanism and a filtering mechanism which are positioned in the stirring tank, and a moving device which is positioned above the precipitation tank.
Wherein the stirring mechanism enables the waste catalyst and water added into the stirring tank to be fully contacted and mixed.
Wherein, the filtering mechanism is used for preventing undissolved solid in the acidic solution formed in the stirring tank from entering the next working procedure.
The moving device is used for realizing the actions of extending and retracting the seed rod up and down and moving the seed rod left and right.
Preferably, the stirring mechanism comprises a stirring motor fixedly installed at the top of the stirring tank cover, one end of an output shaft of the stirring motor extends into the stirring tank and is fixedly sleeved with a stirring shaft, the upper end of the stirring shaft is installed at the bottom of the stirring tank cover through a bearing, and stirring rods are distributed on the outer surface of the stirring shaft in an annular array.
Through above-mentioned technical scheme, drive the (mixing) shaft through the rotation of (mixing) motor output shaft and rotate, the rotation of (mixing) shaft drives the puddler and rotates, and puddler length on the (mixing) shaft not co-altitude is inconsistent, and is higher longer more, and the puddler that is located the (mixing) shaft bottom is the shape distribution of downward sloping, so the shape according to the agitator tank of being convenient for makes inside dead catalyst and hydroenergy carry out abundant mixed solution.
Preferably, the filter mechanism comprises a workbench positioned at the rear of the stirring tank, a groove is formed in the upper surface of the workbench, a screw is mounted on the inner wall of the groove through a bearing, a driving motor is fixedly mounted on one side of the workbench, one end of an output shaft of the driving motor is fixedly sleeved with one end of the screw, a T-shaped rod is sleeved on the surface thread of the screw, the surface of the T-shaped rod is in sliding clamping connection with the inner wall of the groove, and a filter screen is fixedly mounted on the upper surface of the T-shaped rod through a mounting plate.
Through above-mentioned technical scheme, one side of workstation is provided with the controller, and the rotation of driving motor output shaft drives the screw rod and rotates, and the rotation of screw rod drives T type pole and removes on the screw rod along the inner wall of recess, and the removal of T type pole drives the filter screen through the mounting panel and removes, takes off the cover of agitator tank, avoids the contact of filter screen and (mixing) shaft and puddler, and then reaches filterable effect.
Preferably, guide rails are fixedly mounted on two sides of the upper surface of the workbench, a moving block is slidably clamped on the surface of the guide rails, and one side of the moving block is fixedly connected with one end of the T-shaped rod.
Through the technical scheme, the movement of the T-shaped rod drives the movable block to move along the surface of the guide rail, so that the movement of the filter screen is limited, and meanwhile, the supporting force of the filter screen is improved.
Preferably, a limiting groove is formed in the surface of the stirring tank, and the surface of the mounting plate is in sliding clamping connection with the inner wall of the limiting groove.
Through above-mentioned technical scheme, the mounting panel drives the filter screen along the removal of spacing groove inner wall and gets into in the agitator tank to set up sealed pad at the inner wall of spacing groove, prevent that the solution from spilling over in the filtration process.
Preferably, the agitator tank is located the fixed surface intercommunication of filter screen top has the outlet pipe, the one end fixed mounting of outlet pipe has the suction pump, the water delivery end fixed intercommunication of suction pump has the inlet tube, the one end of inlet tube with the fixed surface intercommunication of precipitation tank.
Through the technical scheme, the water pump sucks out the solution in the stirring tank and leads the solution into the precipitation tank, and the solution in the stirring tank is filtered by the filter screen.
Preferably, the mobile device is including installing precipitation tank with retrieve the support of jar top, the inside wall fixed mounting of support has vertical self-driving slide rail, the inner wall fixed mounting of support has horizontal self-driving slide rail, slider one side fixedly connected with connecting block on the vertical self-driving slide rail, the slider bottom on the horizontal self-driving slide rail is provided with the installation piece, the lower surface of installation piece with seed crystal pole's upper end fixed connection, simultaneously the connecting block with between the installation piece and the installation piece with the slider bottom on the horizontal self-driving slide rail all is provided with coupling mechanism.
Through the technical scheme, the vertical self-driven sliding rail is started to drive the connecting block to move through the sliding block on the vertical self-driven sliding rail, the connecting mechanism drives the installation block to move, the movement of the installation block drives the seed rod to move up and down, the connection between the connecting block and the installation block is disconnected, the installation block is connected with the sliding block on the horizontal self-driven sliding rail, the horizontal self-driven sliding rail is started to drive the installation block to move through the sliding block on the horizontal self-driven sliding rail, and the movement of the installation block drives the seed rod to move left and right.
Preferably, the connecting mechanism comprises two servo motors fixedly mounted on the inner wall of the mounting block, two clamping columns are fixedly connected to one side and the upper surface of the mounting block respectively, two clamping grooves are formed in one side of the connecting block and the bottom of the sliding block on the transverse self-driven sliding rail respectively, and the surfaces of the clamping columns are in sliding connection with the inner wall of the clamping grooves.
Through above-mentioned technical scheme, the connection of card post and draw-in groove is fixed a position connecting block and installation piece, and the installation piece is connected between the slider on the horizontal self-driven slide rail.
Preferably, the inner wall of the clamping column is provided with a rotating shaft, one end of an output shaft of the servo motor is fixedly connected with one end of the rotating shaft, the surface of the rotating shaft is installed on the inner wall of the installation block through a bearing, one end of the rotating shaft extends to the inner wall of the clamping column and is fixedly sleeved with a gear, one side of the gear is provided with a fixing block, the surface of the rotating shaft is connected with the inner wall of the fixing block through a bearing, the inner surface of the fixing block is slidably clamped with a fixing rod, the surface of the fixing rod is fixedly connected with a sliding column, a sliding groove is formed in the surface of the gear in an annular array, the surface of the sliding column is slidably clamped with the inner wall of the sliding groove, and the surface of the rotating shaft is connected with the surface of the other rotating shaft through a conical gear set.
Through the technical scheme, the rotation of the output shaft of the servo motor drives the rotating shaft connected with the output shaft of the servo motor to rotate, the rotation of the rotating shaft drives the gear to rotate, the rotation of the gear drives the sliding groove to move, the sliding column moves along the inner wall of the sliding groove to drive the fixing rod to move along the inner surface of the fixing block, the fixing rod penetrates out of the inner wall joint of the clamping column and the clamping groove, the rotation of the output shaft of the servo motor drives the rotating shaft connected with the output shaft of the servo motor to rotate, and the rotation of the rotating shaft drives the other rotating shaft to rotate through the conical gear set, so that the fixing rods on the two clamping columns synchronously extend out of the clamping column and the inner wall joint of the clamping groove.
The beneficial effects of the invention are as follows:
1. through setting up filtering mechanism, not only avoid it to collide with rabbling mechanism, filter the top through setting up the filter screen in solution simultaneously and can more limit, reduce the partial solid in the solution and get into through the gap under the action of gravity, still be convenient for clear up the filter screen.
2. Through setting up coupling mechanism, the mobile device of being convenient for drives the seed pole and realizes the removal action about, make vertical self-driven slide rail drive seed pole and reciprocate when the connection disconnection of slider on installation piece and the horizontal self-driven slide rail and be connected with the connecting block, be connected disconnection and with the horizontal self-driven slide rail on the slider and make horizontal self-driven slide rail drive seed pole and control the removal when installation piece and connecting block.
3. Through setting up toper form seed pole for salt crystal carries out the action of separation to the metal in the dead catalyst with toper form crystal growth structure, and makes the crystal grow to certain height or diameter in, makes it transport to retrieve jar on through mobile device, and makes the crystal drop to retrieve in the jar from the seed pole voluntarily under the effect of manipulator, thereby reaches the effect of retrieving.
Drawings
FIG. 1 is a schematic diagram of a solid-liquid separation device for a heavy metal-containing spent catalyst recovery process according to the present invention;
FIG. 2 is a perspective view of a stirring rod structure of solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process;
FIG. 3 is a perspective view of a filter screen structure of solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process;
FIG. 4 is a perspective view of a T-shaped rod structure of solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process;
FIG. 5 is a perspective view of a support structure of solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process according to the present invention;
fig. 6 is a perspective view of a vertical self-driven sliding rail structure of solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process;
FIG. 7 is a perspective view of a clamping groove structure of solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process;
FIG. 8 is a perspective view of a clamping column structure of solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process;
FIG. 9 is a perspective view of a servo motor structure of a solid-liquid separation device for a heavy metal-containing dead catalyst recovery process according to the present invention;
FIG. 10 is a perspective view of a rotating shaft structure of a solid-liquid separation device for a heavy metal-containing dead catalyst recovery process according to the present invention;
fig. 11 is a perspective view of a gear structure of a solid-liquid separation device for a recovery process of a dead catalyst containing heavy metals.
In the figure: 1. a stirring tank; 2. a precipitation tank; 3. seed rods; 4. a recovery tank; 5. a stirring motor; 51. a stirring shaft; 52. a stirring rod; 6. a work table; 61. a groove; 62. a screw; 63. a driving motor; 64. a T-shaped rod; 65. a filter screen; 66. a guide rail; 67. a moving block; 68. a limit groove; 7. a bracket; 71. a vertical self-driven slide rail; 72. a transverse self-driven slide rail; 73. a connecting block; 74. a mounting block; 75. a servo motor; 751. a clamping column; 752. a clamping groove; 753. a rotating shaft; 754. a gear; 755. a fixed block; 756. a fixed rod; 757. a spool; 758. a chute; 8. a water outlet pipe; 9. a water pump; 10. a water inlet pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1, a solid-liquid separation apparatus for a recovery process of a heavy metal-containing spent catalyst, the recovery process of the heavy metal-containing spent catalyst comprising the recovery steps of:
s1, pouring the collected waste catalyst into a stirring tank 1 through a feed inlet, dissolving with water, stirring uniformly to form an acidic solution, and filtering;
s2, introducing the filtered acid solution into a precipitation tank 2, adding ammonia water or ammonium salt, cooling to 3-10 ℃ for crystallization, preparing salts, crystallizing the salts along the surface of the conical seed rod 3, and allowing the salts to grow upwards by using a pulling method;
s3, transporting the salt crystals after the growth to a recovery tank 4 through a seed rod 3, and falling into the recovery tank 4.
Referring to fig. 1 to 11, a solid-liquid separation apparatus for a recovery process of a dead catalyst containing heavy metals comprises a stirring mechanism and a filtering mechanism which are positioned in a stirring tank 1, and a moving device which is positioned above a precipitation tank 2.
As shown in fig. 2, in which the stirring mechanism allows the spent catalyst and water added to the stirring tank 1 to be sufficiently contact-mixed.
In order to drive the stirring mechanism, the stirring mechanism comprises a stirring motor 5 fixedly arranged at the top of a tank cover of a stirring tank 1, one end of an output shaft of the stirring motor 5 extends into the stirring tank 1 and is fixedly sleeved with a stirring shaft 51, the upper end of the stirring shaft 51 is arranged at the bottom of the tank cover of the stirring tank 1 through a bearing, stirring rods 52 are distributed on the outer surface of the stirring shaft 51 in an annular array, the stirring shaft 51 is driven to rotate through rotation of the output shaft of the stirring motor 5, the stirring rods 52 are driven to rotate through rotation of the stirring shaft 51, the stirring rods 52 are enabled to adapt to the shape of the stirring tank 1 for improving stirring efficiency, the stirring rods 52 on different heights of the stirring shaft 51 are inconsistent, the stirring rods 52 on the bottom of the stirring shaft 51 are distributed in a shape inclined downwards, and therefore waste catalyst and water inside can be fully mixed and dissolved according to the shape of the stirring tank 1.
As shown in fig. 3 to 4, wherein the filtering means is used to prevent undissolved solids in the acidic solution formed in the stirred tank 1 from going to the next process.
In order to prevent the interference between the filtering mechanism and the stirring mechanism, the filtering mechanism comprises a workbench 6 positioned at the rear of the stirring tank 1, a groove 61 is formed in the upper surface of the workbench 6, a screw 62 is installed on the inner wall of the groove 61 through a bearing, a driving motor 63 is fixedly installed on one side of the workbench 6, one end of an output shaft of the driving motor 63 is fixedly sleeved with one end of the screw 62, a T-shaped rod 64 is sleeved on the surface thread of the screw 62, the surface of the T-shaped rod 64 is in sliding clamping connection with the inner wall of the groove 61, a filter screen 65 is fixedly installed on the upper surface of the T-shaped rod 64 through a mounting plate, a limit groove 68 is formed in the surface of the stirring tank 1, the surface of the mounting plate is in sliding clamping connection with the inner wall of the limit groove 68, the tank cover of the stirring tank 1 is taken down, the contact between the filter screen 65 and the stirring shaft 51 and the stirring rod 52 is avoided, the screw 62 is driven to rotate through rotation of the output shaft of the driving motor 63, the T-shaped rod 64 moves along the inner wall of the groove 61, the movement of the T-shaped rod 64 drives the filter screen 65 through the mounting plate to move along the limit groove 68.
In order to limit the movement of the filter screen 65, guide rails 66 are fixedly mounted on two sides of the upper surface of the workbench 6, a moving block 67 is fixedly connected to the surface of the guide rails 66 in a sliding clamping mode, one side of the moving block 67 is fixedly connected with one end of the T-shaped rod 64, and the movement of the T-shaped rod 64 drives the moving block 67 to move along the surface of the guide rails 66, so that the movement of the filter screen 65 is limited, and meanwhile, the supporting force of the filter screen 65 is improved.
For the convenience of filtering, a water outlet pipe 8 is fixedly communicated with the surface of the stirring tank 1 above a filter screen 65, a water suction pump 9 is fixedly arranged at one end of the water outlet pipe 8, a water delivery end of the water suction pump 9 is fixedly communicated with a water inlet pipe 10, one end of the water inlet pipe 10 is fixedly communicated with the surface of the precipitation tank 2, the solution in the stirring tank 1 is sucked out and led into the precipitation tank 2 through the water suction pump 9, and the solution in the stirring tank 1 is filtered by the filter screen 65.
Through setting up filtering mechanism, not only avoid it to collide with rabbling mechanism, filter through setting up filter screen 65 in the top of solution can be greater limit simultaneously, reduce the partial solid in the solution and get into through the gap under the action of gravity, still be convenient for clear up filter screen 65.
In order to control the whole apparatus, a controller is provided on one side of the table 6.
As shown in fig. 5 to 6, the moving device is used to implement the movement of the seed rod 3 to extend and retract up and down and move left and right.
In order to drive the seed rod 3 to move, the moving device comprises a bracket 7 arranged above the precipitation tank 2 and the recovery tank 4, a vertical self-driving sliding rail 71 is fixedly arranged on the inner side wall of the bracket 7, a transverse self-driving sliding rail 72 is fixedly arranged on the inner wall of the bracket 7, a connecting block 73 is fixedly connected to one side of a sliding block on the vertical self-driving sliding rail 71, a mounting block 74 is arranged at the bottom of the sliding block on the transverse self-driving sliding rail 72, the lower surface of the mounting block 74 is fixedly connected with the upper end of the seed rod 3, the vertical self-driving sliding rail 71 is started to drive the connecting block 73 to move through the sliding block on the mounting block 74, the connecting block 74 is driven to move through a connecting mechanism, the seed rod 3 is driven to move up and down by the movement of the mounting block 74, the connection between the connecting block 73 and the mounting block 74 is disconnected, the mounting block 74 and the sliding block on the transverse self-driving sliding rail 72 are connected together, and the movement of the mounting block 74 drives the seed rod 3 to move left and right through the sliding block on the transverse self-driving sliding rail 72.
As shown in fig. 6 to 11, in order to prevent the vertical movement and the horizontal movement of the seed rod 3 from interfering, a connection mechanism is provided between the connection block 73 and the installation block 74 and at the bottom of the slide block on the installation block 74 and the horizontal self-driving slide rail 72, the connection mechanism comprises two servo motors 75 fixedly installed on the inner wall of the installation block 74, two clamping posts 751 are fixedly connected to one side and the upper surface of the installation block 74 respectively, two clamping grooves 752 are respectively provided on one side of the connection block 73 and at the bottom of the slide block on the horizontal self-driving slide rail 72, the surfaces of the clamping posts 751 are slidably connected with the inner wall of the clamping grooves 752, and the connection between the connection block 73 and the installation block 74 and the connection between the installation block 74 and the slide block on the horizontal self-driving slide rail 72 is positioned through the connection of the clamping posts 751 and the clamping grooves 752.
In order to drive the connecting mechanism, be provided with pivot 753 at the inner wall of draw-in post 751, servo motor 75's output shaft one end and one end fixed connection of one of them pivot 753, the surface of pivot 753 passes through the bearing to be installed at the inner wall of installation piece 74, and the one end of pivot 753 extends to draw-in post 751 and fixed sleeve has gear 754, one side of gear 754 is provided with fixed block 755, the surface of pivot 753 passes through the bearing with the inner wall of fixed block 755 to be connected, the sliding joint of the inner surface of fixed block 755 has dead lever 756, the fixed surface fixedly connected with slide post 757 of, and the surface of gear 754 is the annular array distribution and has seted up spout 758, the surface of slide post 757 and the inner wall sliding joint of spout 758, servo motor 75 output shaft's rotation drives the pivot 753 that is connected with it, the rotation of pivot 753 drives gear 754 and rotates, gear 758 moves, make slide post 757 along the inner surface of fixed block 753 moves along the inner surface of fixed block 75, thereby make dead lever 756 wear out draw-in post 751 and draw-in post inner surface of groove 752, and the inner surface of another rotary joint of pivot 753 is connected with the rotation taper of the other end of pivot 753, thereby the rotation of the servo motor 753 is connected with the face of another rotary joint of pivot 753.
Through setting up coupling mechanism, the mobile device of being convenient for drives seed rod 3 and realizes the motion of reciprocating, controlling, makes vertical self-driven slide rail 71 drive seed rod 3 and reciprocates when installation piece 74 and horizontal self-driven slide rail 72 go up the connection disconnection of slider and be connected with connecting block 73, and the connection disconnection of installation piece 74 and connecting block 73 and with horizontal self-driven slide rail 72 goes up the connection of slider and makes horizontal self-driven slide rail 72 drive seed rod 3 and control the removal.
Working principle: when the stirring device is used, collected waste catalyst and water are poured into the stirring tank 1 through a feed inlet on the tank cover of the stirring tank 1 in sequence, the operation of the device is controlled by a controller on one side of the workbench 6, the stirring motor 5 is started, the rotation of an output shaft of the stirring motor 5 drives the stirring shaft 51 to rotate, and the rotation of the stirring shaft 51 drives the stirring rod 52 to rotate, so that the stirring rod 52 enables the waste catalyst and the water to be fully contacted and dissolved;
after stirring is completed, the tank cover of the stirring tank 1 is taken down, interference between the filter screen 65 and the operation action of the stirring mechanism is avoided, meanwhile, the filter screen 65 is convenient to clean, the driving motor 63 is started, the rotation of the output shaft of the driving motor 63 drives the screw 62 to rotate, the rotation of the screw 62 drives the T-shaped rod 64 to move on the screw 62 along the inner wall of the groove 61, the moving block 67 of the T-shaped block moves along the surface of the guide rail 66, meanwhile, the movement of the T-shaped rod 64 drives the filter screen 65 through the mounting plate, so that the filter screen 65 moves along the inner wall of the limiting groove 68 until the filter screen 65 completely enters the stirring tank 1, then the water suction pump 9 is started, the solution in the stirring tank 1 is sucked out and guided into the precipitation tank 2, and the solution in the stirring tank 1 is sucked out after being filtered by the filter screen 65;
ammonia water or ammonium salt is added into the precipitation tank 2 to react with the acid solution, and salt crystals are precipitated when the precipitation tank 2 is cooled to 3-10 ℃, so that the salt crystals crystallize along the surface of the conical seed rod 3, and the vertical self-driven sliding rail 71 is started to enable the seed rod 3 to rise from the precipitation tank 2 and drive the crystals to grow upwards along with the upward movement of the seed rod 3;
as the seed rod 3 moves out of the solution height of the precipitation tank 2, when crystals grow to a certain height and diameter along the surface of the seed rod 3, the connection between the mounting block 74 and the connecting block 73 is disconnected, the mounting block 74 is connected with the sliding block on the transverse self-driven sliding rail 72, the clamping column 751 above the mounting block 74 is clamped with the clamping groove 752 at the bottom of the sliding block on the transverse self-driven sliding rail 72, the servo motor 75 is started, the rotation of the output shaft of the servo motor 75 drives the rotating shaft 753 connected with the servo motor to rotate, the rotation of the rotating shaft 753 drives the gear 754 to rotate, the rotating of the gear 754 drives the sliding groove 758 to move, the sliding column 757 moves along the inner wall of the sliding groove 758 to drive the fixing rod 756 to move along the inner surface of the fixing block 755, so that the fixing rod 756 penetrates out of the clamping column 751 and the inner wall of the clamping groove 752, the transverse self-driven sliding rail 72 is started to drive the seed rod 3 to move to the upper part of the recovery tank 4, and the crystals on the seed rod 3 are separated into the recovery tank 4 under the action of the mechanical arm.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. A solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process is characterized in that: the recovery process of the heavy metal-containing dead catalyst comprises the following recovery steps:
s1, pouring the collected waste catalyst into a stirring tank (1) through a feed inlet, dissolving with water, uniformly stirring to form an acidic solution, and filtering;
s2, introducing the filtered acid solution into a precipitation tank (2), adding ammonia water or ammonium salt, cooling to 3-10 ℃ for crystallization, preparing salts, crystallizing the salts along the surface of the conical seed rod (3), and allowing the salt crystals to grow upwards by using a pulling method;
s3, transporting the salt crystals after the growth to a recovery tank (4) through a seed rod (3), and falling off into the recovery tank (4);
the solid-liquid separation equipment comprises a stirring mechanism and a filtering mechanism which are positioned in the stirring tank (1), and a moving device which is positioned above the precipitation tank (2);
wherein the stirring mechanism enables the waste catalyst and water added into the stirring tank (1) to be fully contacted and mixed;
wherein the filtering mechanism is used for preventing undissolved solids in the acidic solution formed in the stirring tank (1) from entering the next working procedure;
the filtering mechanism comprises a workbench (6) positioned at the rear of the stirring tank (1), a groove (61) is formed in the upper surface of the workbench (6), a screw (62) is installed on the two sides of the upper surface of the workbench (6) through a bearing, a driving motor (63) is fixedly installed on one side of the workbench (6), one end of an output shaft of the driving motor (63) is fixedly sleeved with one end of the screw (62), a T-shaped rod (64) is sleeved on the surface thread of the screw (62), a filter screen (65) is fixedly installed on the upper surface of the T-shaped rod (64) through a mounting plate, guide rails (66) are fixedly installed on the two sides of the upper surface of the workbench (6), a moving block (67) is fixedly connected with one end of the T-shaped rod (64) in a sliding mode, a limit groove (68) is formed in the surface of the stirring tank (1), and the surface of the limit groove is in sliding mode with the inner wall of the mounting plate (68);
the moving device is used for realizing the actions of extending and retracting the seed rod (3) up and down and moving the seed rod left and right;
the moving device comprises a bracket (7) arranged above the precipitation tank (2) and the recovery tank (4), wherein a vertical self-driving sliding rail (71) is fixedly arranged on the inner side wall of the bracket (7), a transverse self-driving sliding rail (72) is fixedly arranged on the inner wall of the bracket (7), a connecting block (73) is fixedly connected to one side of a sliding block on the vertical self-driving sliding rail (71), a mounting block (74) is arranged at the bottom of the sliding block on the transverse self-driving sliding rail (72), the lower surface of the mounting block (74) is fixedly connected with the upper end of the seed rod (3), and meanwhile, a connecting mechanism is arranged between the connecting block (73) and the mounting block (74) and at the bottom of the sliding block on the transverse self-driving sliding rail (72);
the connecting mechanism comprises two servo motors (75) fixedly mounted on the inner wall of the mounting block (74), two clamping columns (751) are fixedly connected to one side and the upper surface of the mounting block (74), two clamping grooves (752) are respectively formed in one side of the connecting block (73) and the bottom of a sliding block on the transverse self-driving sliding rail (72), the surface of the clamping column (751) is slidably connected with the inner wall of the clamping groove (752), a rotating shaft (753) is arranged on the inner wall of the clamping column (751), one end of an output shaft of the servo motor (75) is fixedly connected with one end of one rotating shaft (753), the surface of the rotating shaft (753) is mounted on the inner wall of the mounting block (74) through a bearing, one end of the rotating shaft (753) extends into the clamping column (751) and is fixedly sleeved with a gear (754), one side of the gear (754) is provided with a fixing block (755), the surface of the rotating shaft (753) is slidably connected with the inner wall of the fixing block (752), the surface of the sliding column (757) is fixedly connected with the inner surface of the sliding groove (758), the sliding column (757) is fixedly connected with the surface of the sliding column (7575), the surface of the rotating shaft (753) is in transmission connection with the surface of the other rotating shaft (753) through a conical gear set.
2. The solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process of claim 1, wherein the solid-liquid separation equipment comprises: the stirring mechanism comprises a stirring motor (5) fixedly mounted at the top of the tank cover of the stirring tank (1), one end of an output shaft of the stirring motor (5) extends into the stirring tank (1) and is fixedly sleeved with a stirring shaft (51), the upper end of the stirring shaft (51) is mounted at the bottom of the tank cover of the stirring tank (1) through a bearing, and stirring rods (52) are distributed on the outer surface of the stirring shaft (51) in an annular array.
3. The solid-liquid separation equipment for a heavy metal-containing dead catalyst recovery process of claim 1, wherein the solid-liquid separation equipment comprises: the stirring tank (1) is located a water outlet pipe (8) is fixedly communicated with the surface above the filter screen (65), a water suction pump (9) is fixedly installed at one end of the water outlet pipe (8), a water inlet pipe (10) is fixedly communicated with the water delivery end of the water suction pump (9), and one end of the water inlet pipe (10) is fixedly communicated with the surface of the precipitation tank (2).
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070025899A1 (en) * | 2005-07-29 | 2007-02-01 | Chevron U.S.A. Inc. | Process for metals recovery from spent catalyst |
| CN106048228A (en) * | 2016-06-29 | 2016-10-26 | 青岛惠城环保科技股份有限公司 | Method for recovering rare earth from waste fluid catalytic cracking catalyst |
| CN212526377U (en) * | 2020-07-13 | 2021-02-12 | 章丘市大星精工机械有限公司 | Anti-deviation positioning device for gear finish machining |
| CN213829034U (en) * | 2020-11-26 | 2021-07-30 | 九江萨普智能科技有限公司 | Self-damping three-axis carrying manipulator capable of stably moving |
| CN217222460U (en) * | 2022-05-21 | 2022-08-19 | 云南德福环保有限公司 | A iron plate and aluminium pig recovery unit for overhaul sediment powder |
| CN114950245A (en) * | 2022-05-27 | 2022-08-30 | 安徽金源药业有限公司 | Pharmaceutical sterile environment intelligent monitoring equipment and method based on industrial Internet |
| CN115057567A (en) * | 2022-05-20 | 2022-09-16 | 中山市康迪斯威科技有限公司 | Gold recovery unit in gold iodide waste liquid |
| CN218795964U (en) * | 2022-11-21 | 2023-04-07 | 江苏飞马催化剂有限公司 | Platinum catalyst recovery unit |
-
2023
- 2023-05-25 CN CN202310593435.0A patent/CN116287727B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070025899A1 (en) * | 2005-07-29 | 2007-02-01 | Chevron U.S.A. Inc. | Process for metals recovery from spent catalyst |
| CN106048228A (en) * | 2016-06-29 | 2016-10-26 | 青岛惠城环保科技股份有限公司 | Method for recovering rare earth from waste fluid catalytic cracking catalyst |
| CN212526377U (en) * | 2020-07-13 | 2021-02-12 | 章丘市大星精工机械有限公司 | Anti-deviation positioning device for gear finish machining |
| CN213829034U (en) * | 2020-11-26 | 2021-07-30 | 九江萨普智能科技有限公司 | Self-damping three-axis carrying manipulator capable of stably moving |
| CN115057567A (en) * | 2022-05-20 | 2022-09-16 | 中山市康迪斯威科技有限公司 | Gold recovery unit in gold iodide waste liquid |
| CN217222460U (en) * | 2022-05-21 | 2022-08-19 | 云南德福环保有限公司 | A iron plate and aluminium pig recovery unit for overhaul sediment powder |
| CN114950245A (en) * | 2022-05-27 | 2022-08-30 | 安徽金源药业有限公司 | Pharmaceutical sterile environment intelligent monitoring equipment and method based on industrial Internet |
| CN218795964U (en) * | 2022-11-21 | 2023-04-07 | 江苏飞马催化剂有限公司 | Platinum catalyst recovery unit |
Non-Patent Citations (1)
| Title |
|---|
| 胡赓祥等.金属学.上海交通大学出版社,1980,第143页. * |
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