CN117000356A - Recovery treatment process of graphite negative electrode - Google Patents
Recovery treatment process of graphite negative electrode Download PDFInfo
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- CN117000356A CN117000356A CN202311124057.8A CN202311124057A CN117000356A CN 117000356 A CN117000356 A CN 117000356A CN 202311124057 A CN202311124057 A CN 202311124057A CN 117000356 A CN117000356 A CN 117000356A
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- crushing
- grinding disc
- rotate
- motor
- treatment box
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 48
- 239000010439 graphite Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000008569 process Effects 0.000 title claims abstract description 30
- 238000011084 recovery Methods 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 102
- 238000000227 grinding Methods 0.000 claims abstract description 72
- 239000002699 waste material Substances 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 34
- 238000004064 recycling Methods 0.000 claims description 14
- 239000012535 impurity Substances 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 244000309464 bull Species 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000010406 cathode material Substances 0.000 abstract description 8
- 238000012216 screening Methods 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/02—Crushing or disintegrating by disc mills with coaxial discs
- B02C7/08—Crushing or disintegrating by disc mills with coaxial discs with vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/20—Stationary drums with moving interior agitators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
- H01M4/587—Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of graphite cathode recovery, in particular to a graphite cathode recovery treatment process, which comprises a treatment box, wherein two groups of crushing rollers meshed with each other are symmetrically arranged in the treatment box, a screen cylinder is welded below the crushing rollers in the treatment box, a crushing roller coaxial with the screen cylinder is arranged inside the screen cylinder, and a grinding mechanism is arranged below the screen cylinder inside the treatment box; when the graphite electrode waste is treated, two groups of first motors are started to drive the corresponding crushing rollers to rotate, coarse crushing treatment is carried out on the graphite electrode waste, the coarse crushed materials fall into the screen cylinder, the second motors are started to drive the crushing rollers to rotate, fine crushing treatment is carried out on the coarse crushed materials, the fine crushed materials fall into the accommodating groove at the top of the upper millstone, the third motors are started to drive the upper millstone to rotate, grinding treatment is carried out on the fine crushed materials, and coarse crushing, fine crushing and grinding treatment on the graphite cathode materials are synchronously realized, so that the recovery efficiency of the graphite cathode materials is effectively improved.
Description
Technical Field
The invention relates to the technical field of graphite negative electrode recovery, in particular to a recovery treatment process of a graphite negative electrode.
Background
The lithium ion battery has the advantages of high energy density, large capacity, good cycle performance and the like, the recovery of the lithium ion battery is mainly concentrated on valuable metal elements such as cobalt, lithium, iron, manganese and the like of an anode active substance, and the recovery technology and the industrial development of the anode of the retired battery are still in a preliminary stage due to wide graphite sources and low recovery added value in the traditional sense for active component graphite and metal current collectors thereof commonly used in anode materials. However, graphite plays an important strategic role as a national strategic resource, and particularly, if the high-end natural graphite and artificial graphite used in the lithium ion battery can perfect the negative electrode material recovery technology on the basis of developing the positive electrode material recovery, the clean recovery of all components of the retired battery is realized, and the battery recovery industry and the diversification of the healthy cyclic development of the lithium ion battery industry are integrally improved.
Such as the prior art with the patent number of CN 107785631A. When coarse crushing, fine crushing and grinding are carried out on the graphite cathode, firstly, the waste products of the graphite electrode are put into the first crusher to carry out coarse crushing, then the materials after coarse crushing are put into the second crusher to carry out fine crushing through the external transfer device, the generated fine crushing is put into the grinding mill to carry out grinding treatment through the external transfer device, the recycling process is single and is treated one by one, the coarse crushing, fine crushing and grinding treatment on the graphite cathode materials are difficult to synchronously realize, the treatment process is complicated, and the recycling efficiency of the graphite cathode materials is not beneficial to being improved.
In view of the above technical drawbacks, a solution is now proposed.
Disclosure of Invention
The invention aims to provide a recycling treatment process of a graphite cathode, which solves the technical defects, realizes the coarse crushing, fine crushing and grinding treatment of a graphite cathode material synchronously through a crushing device, avoids the operation of transferring materials by using an external transfer device in the prior art, and effectively improves the recycling efficiency of the graphite cathode material.
The aim of the invention can be achieved by the following technical scheme:
the recovery treatment process of the graphite cathode is characterized by comprising the following steps of:
step one: placing graphite electrode waste into a treatment box through a feed hopper in a crushing device, starting two groups of first motors to drive corresponding crushing rollers to rotate, starting a second motor to drive the crushing rollers to rotate, and starting a third motor to drive an upper grinding disc to rotate;
step two: preliminary crushing is carried out on graphite electrode waste products through two groups of crushing rollers which are meshed relatively and rotate to obtain coarse crushed materials, the coarse crushed materials fall on a sieve plate through the meshed parts of the two groups of crushing rollers, impurities in the coarse crushed materials are screened, and the impurities are discharged out of a treatment box through a discharge port;
step three: the crushing roller drives the rotating shaft to rotate through the cooperation of the driving wheel, the driven wheel and the belt in the rotating process, the rotating shaft drives the sleeve to rotate in the rotating process, and the sleeve knocks the bottom of the sieve plate through the cooperation of the internal spring and the knocking rod in the rotating process, so that the filtering efficiency of the sieve plate is improved, and the problem of blocking of the sieve plate is prevented;
step four: the coarse crushed materials filtered by the sieve plate enter the sieve cylinder through the material guide plate, the first crushing cutter on the surface of the sieve cylinder is driven to rotate through the rotating crushing roller and is matched with the second crushing cutter in the sieve cylinder, the coarse crushed materials are finely crushed, the finely crushed materials are filtered through the sieve cylinder and fall into the accommodating groove at the top of the upper millstone through the matching of the material guide hopper, meanwhile, the vibrator is started, the efficiency of the coarse crushed materials on the material guide plate entering the sieve cylinder is accelerated, and meanwhile, the finely crushed discharging efficiency is accelerated;
step five: the fine materials entering the accommodating groove enter the through hole through the feeding groove, then enter between the upper millstone and the lower millstone, the third motor drives the upper millstone to rotate to grind the fine materials, meanwhile, the fine materials in the accommodating groove are cleaned in the feeding groove through the material guide rod and the cleaning brush on the material guide hopper, and the ground powder is discharged between the upper millstone and the lower millstone and falls to the bottom of the treatment box, and is discharged through the discharge pipe.
The recovery treatment process of the graphite cathode comprises a treatment box, wherein two groups of crushing rollers meshed with each other are symmetrically arranged in the treatment box, the crushing rollers are rotationally connected in the treatment box through rotating shafts with the end parts symmetrically welded at the two ends, a feed hopper is fixedly communicated between the two groups of crushing rollers at the top of the treatment box, and a first motor for driving the corresponding crushing rollers to rotate is fixedly arranged on the treatment box;
the utility model discloses a crushing roller, including the crushing roller, handle the incasement, be located the below welding of crushing roller has a screen drum, the screen drum is three-quarter circular and the opening direction of screen drum upwards, the welding has the stock guide between the inside wall of the top both sides of screen drum and the processing case, the inside of screen drum is provided with the crushing roller coaxial with the screen drum, the bull stick rotation that the crushing roller passes through both ends tip symmetry welded is connected in handling the incasement, the dense first crushing sword that is equipped with on the outer wall of crushing roller, the dense second crushing sword that is equipped with on the inner wall of screen drum, fixed mounting has the second motor that is used for driving the corresponding crushing roller pivoted on handling the case, the inside of handling the case is located the below of screen drum and is provided with grinding mechanism, the fixed intercommunication in bottom of handling the case has the material pipe, the bottom fixed welding of handling case has four sets of support columns that are rectangular array and arrange.
Preferably, the grinding mechanism comprises a lower grinding disc, a fixed plate, a rotating rod, an upper grinding disc, a containing groove, a through hole and a third motor, wherein the lower grinding disc is arranged in the treatment box, the fixed plate is fixedly welded between the outer side wall of the lower grinding disc and the inner side wall of the treatment box, the rotating rod is rotationally connected with the center of the top of the lower grinding disc, the upper grinding disc rotationally connected with the top of the lower grinding disc is fixedly sleeved on the rotating rod, the containing groove is formed in the top of the upper grinding disc, the through holes distributed in four groups of relative rotating rod circumferential arrays are formed in the bottom of the containing groove, the through holes penetrate through the upper grinding disc, the guide hopper is welded above the upper grinding disc in the treatment box, and the third motor for driving the corresponding rotating rod is fixedly arranged at the bottom of the lower grinding disc.
Preferably, the feed chute that is linked together with corresponding through-hole has been seted up at the top of last mill, be located bottom one end fixedly connected with guide bar on the inner wall of guide hopper, the bottom fixedly connected with of guide bar is with holding tank bottom sliding connection's clearance brush.
Preferably, the inside fixedly connected with slope of processing case sets up the sieve, and the sieve is located between crushing roller and the stock guide, the bin outlet has been seted up in the last bottom top that is located the sieve of lateral wall of processing case, the top of sieve is followed its length direction equidistance fixedly connected with a plurality of semicircle bead.
Preferably, the inside of handling case is located the bottom rotation of sieve and is connected with the axis of rotation, the bottom of axis of rotation is followed its length direction equidistance fixedly connected with a plurality of sleeve pipes, each sheathed tube inside all fixedly connected with spring, the free end fixedly connected with of spring strikes the pole with sleeve pipe sliding connection, the one end that keeps away from first motor in the axis of rotation runs through and extends to the outside of handling case and fixedly connected with from the driving wheel, keeps away from the pivot tip of first motor runs through and extends to the outside of handling case and fixedly connected with action wheel, pass through belt transmission connection between action wheel and the driving wheel.
Preferably, the bottom of each guide plate is fixedly provided with a vibrating machine through bolts.
The beneficial effects of the invention are as follows:
(1) The recycling treatment process of the graphite cathode comprises the steps of realizing coarse crushing, fine crushing and grinding treatment of graphite cathode materials through a crushing device, putting graphite electrode waste into a treatment box through a feed hopper when the graphite electrode waste is treated, driving corresponding crushing rollers to rotate through starting two groups of first motors, primarily crushing the graphite electrode waste to achieve the purpose of coarse crushing treatment, enabling coarse crushed materials to fall into a screen drum and starting a second motor to drive the crushing rollers to rotate, realizing the purpose of carrying out fine crushing treatment on the coarse crushed materials, enabling the finely crushed materials to fall into a containing groove at the top of an upper grinding disc and starting a third motor to drive the upper grinding disc to rotate, further synchronously realizing the purpose of carrying out grinding treatment on the fine crushed materials, avoiding the operation of transferring the materials by using an external transfer device in the prior art, and effectively improving the recycling efficiency of the graphite cathode materials.
(2) Through the sieve that sets up between crushing roller and stock guide, sieve the impurity in the coarse crushing material to discharge the processing case with impurity through the bin outlet, the crushing roller is through action wheel, follow driving wheel and belt's cooperation at the rotation in-process, drives the axis of rotation and rotates, and the axis of rotation can drive the inside pole of beating of sleeve pipe in the rotation in-process and beat the bottom of sieve, thereby quickens the filtration efficiency of sieve and prevents the problem that takes place the sieve to block up.
(3) Through the guide rod and the cleaning brush that set up in the guide hopper, clean the material that finely divided in the holding tank in the feed chute to avoided a large amount of finely divided material to stop in the holding tank and can't enter into between last mill and the lower mill through the through-hole, and then can't carry out the problem of grinding treatment.
Drawings
The invention is further described below with reference to the accompanying drawings;
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a structural perspective view of another aspect of the present invention;
FIG. 3 is a front cross-sectional view of the present invention;
FIG. 4 is a schematic view of the structure of the screen cylinder and crushing roller of the present invention;
FIG. 5 is a schematic view of the grinding mechanism of the present invention;
FIG. 6 is a schematic view of the structure of the guide hopper of the present invention;
FIG. 7 is a schematic view of the structure of the rotating shaft of the present invention;
FIG. 8 is an enlarged view of a portion of the invention at A in FIG. 3;
fig. 9 is a partial enlarged view of the present invention at B in fig. 7.
Legend description:
1. a treatment box; 11. a feed hopper; 12. a discharge pipe; 13. a support column; 14. a guide hopper; 15. a material guide rod; 16. cleaning brushes; 17. a sieve plate; 18. a discharge port; 19. semicircular ribs;
2. a crushing roller; 21. a rotating shaft; 22. a first motor; 23. a driving wheel; 24. a belt;
3. a screen drum; 31. a material guide plate; 32. a pulverizing roller; 33. a rotating rod; 34. a first crushing cutter; 35. a second crushing cutter; 36. a second motor; 37. a vibrator;
4. a grinding mechanism; 41. a lower grinding disc; 42. a fixing plate; 43. a rotating lever; 44. an upper millstone; 45. a receiving groove; 46. a through hole; 47. a third motor; 48. a feed chute;
5. a rotating shaft; 51. a sleeve; 52. a spring; 53. knocking the rod; 54. and (3) a driven wheel.
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. 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.
Embodiment one:
aiming at the problems that in the prior art, the graphite negative electrodes are singly subjected to coarse crushing, fine crushing and grinding one by one, which is not beneficial to improving the recovery efficiency of the graphite negative electrode material, the method can be solved by the following scheme;
referring to fig. 1-9, a recycling process of graphite cathode, a crushing device comprises a processing box 1, two groups of crushing rollers 2 engaged with each other are symmetrically arranged in the processing box 1, the waste graphite electrode is crushed to obtain coarse crushed materials through the two groups of crushing rollers 2 engaged with each other and rotated relatively, the crushing rollers 2 are connected in the processing box 1 through rotating shafts 21 with symmetrical ends, the top of the processing box 1 is fixedly communicated with a feed hopper 11 between the two groups of crushing rollers 2, a first motor 22 for driving the corresponding crushing rollers 2 to rotate is fixedly arranged on the processing box 1, the arranged first motor 22 is convenient for driving the corresponding crushing rollers 2 to rotate, a screen drum 3 is welded below the crushing rollers 2 in the processing box 1, the screen drum 3 is in a three-quarter round shape and the opening direction of the screen drum 3 is upward, a material guide plate 31 is welded between the two sides of the top of the screen drum 3 and the inner side wall of the processing box 1, the material which is convenient to coarsely crush enters the screen cylinder 3 through the arranged guide plate 31, the crushing roller 32 which is coaxial with the screen cylinder 3 is arranged in the screen cylinder 3, the crushing roller 32 is rotationally connected in the processing box 1 through the rotating rods 33 which are symmetrically welded at the two ends, the first crushing cutter 34 is densely distributed on the outer wall of the crushing roller 32, the second crushing cutter 35 is densely distributed on the inner wall of the screen cylinder 3, the coarsely crushed material is finely crushed through the cooperation of the first crushing cutter 34 arranged on the crushing roller 32 and the second crushing cutter 35 in the screen cylinder 3, the finely crushed material is filtered through the screen cylinder 3, the second motor 36 which is used for driving the corresponding crushing roller 32 to rotate is fixedly arranged on the processing box 1, the second motor 36 which is arranged drives the corresponding crushing roller 32 to rotate, the grinding mechanism 4 is arranged below the screen cylinder 3 in the processing box 1, the bottom of the treatment box 1 is fixedly communicated with a discharge pipe 12, and four groups of support columns 13 which are arranged in a rectangular array are fixedly welded at the bottom of the treatment box 1.
The grinding mechanism 4 includes lower mill 41, fixed plate 42, dwang 43, go up mill 44, holding tank 45, through-hole 46 and third motor 47, lower mill 41 sets up the inside at processing case 1, and fixed welding has fixed plate 42 between the lateral wall of lower mill 41 and the inside wall of processing case 1, fix lower mill 41 in the inside of processing case 1 through the fixed plate 42 that sets up, the top center department rotation of lower mill 41 is connected with dwang 43, fixed cover is equipped with the last mill 44 of being connected with the rotation of lower mill 41 top on the dwang 43, the cooperation through last mill 44 and lower mill 41 carries out the shredding to the material of fine and crushing, holding tank 45 has been seted up at the top of going up mill 44, the holding tank 45 of seting up is convenient for carry out the transient storage to the material of fine and crushing, the through-hole 46 of four sets of relative dwang 43 circumference array distribution has been seted up to the bottom of holding tank 45, the through-hole 46 is convenient for carry out the grinding to go into between last mill 44 and the lower mill 41 through-hole 46 that sets up, the inside of processing case 1 is located the top of going up mill 44 and welds the guide hopper 14, the motor that sets up is convenient for fall down in the bottom of holding tank 45 is convenient for drive motor 47 and is used for drive the third motor 47 of setting up the inside the grinding tank and carrying out the rotation of fine and carrying out the motor 47.
The inside fixedly connected with slope of handling case 1 sets up sieve 17, and sieve 17 is located between crushing roller 2 and the stock guide 31, the screening of sieve 17 is passed through to the material after the coarse crushing, can carry out screening treatment to the impurity in the coarse crushing material, the bin outlet 18 has been seted up in the last extreme top that is located sieve 17 on handling case 1, the bin outlet 18 of setting is discharged the impurity of screening, the top of sieve 17 is followed its length direction equidistance fixedly connected with a plurality of semicircle bead 19, the dwell time on sieve 17 of coarse crushing material has been prolonged through a plurality of semicircle beads 19 of setting, increase the screening effect to the coarse crushing material and avoid part coarse crushing material to pass through bin outlet 18 discharge simultaneously.
The working process and principle of the invention are as follows:
when the device is used, graphite electrode waste is placed into a treatment box 1 through a feed hopper 11, two groups of first motors 22 are started to drive corresponding crushing rollers 2 to rotate, the graphite electrode waste is primarily crushed through two groups of crushing rollers 2 which are meshed and rotated relatively to obtain coarse crushed materials, the coarse crushed materials fall on a sieve plate 17 through the meshed positions of the two groups of crushing rollers 2, impurities in the coarse crushed materials are screened through the sieve plate 17, and the impurities are discharged out of the treatment box 1 through a discharge port 18; the coarse crushed materials filtered by the sieve plate 17 enter the sieve cylinder 3 through the material guide plate 31, the second motor 36 is started to drive the crushing roller 32 to rotate, the first crushing cutter 34 on the surface of the crushing roller 32 is driven to rotate through the rotating crushing roller 32 and is matched with the second crushing cutter 35 in the sieve cylinder 3, the coarse crushed materials are finely crushed, and the finely crushed materials are filtered by the sieve cylinder 3 and fall into the accommodating groove 45 at the top of the upper millstone 44 through the matching of the guide hopper 14; the fine materials entering the accommodating groove 45 enter the through hole 46 through the feeding groove 48, then enter between the upper millstone 44 and the lower millstone 41, the third motor 47 is started to drive the upper millstone 44 to rotate, the third motor 47 drives the upper millstone 44 to rotate, the purpose of grinding the fine materials can be achieved, the ground powder is discharged between the upper millstone 44 and the lower millstone 41 and falls to the bottom of the treatment box 1, and the treatment box 1 is discharged through the discharge pipe 12.
Embodiment two:
the problem that a large amount of fine materials stay in the accommodating groove 45 and cannot enter between the upper grinding disc 44 and the lower grinding disc 41 through the through holes 46, so that grinding treatment cannot be performed can be solved by the following scheme;
referring to fig. 3, 6 and 8, a feeding chute 48 is formed at the top of the upper grinding disc 44 and is communicated with the corresponding through hole 46, fine materials in the accommodating groove 45 are better introduced into the through hole 46 through the formed feeding chute 48, a material guiding rod 15 is fixedly connected to one end of the inner wall of the material guiding hopper 14, which is positioned at the bottom, and a cleaning brush 16 is fixedly connected to the bottom of the accommodating groove 45 in a sliding manner.
In this embodiment:
when the third motor 47 drives the upper grinding disc 44 to rotate, the fine materials in the accommodating groove 45 also rotate along with the rotation of the upper grinding disc 44, and the fine materials in the accommodating groove 45 are conveniently cleaned in the feeding groove 48 through the guide rod 15 on the guide hopper 14 and the cleaning brush 16 which is slidably connected with the accommodating groove 45 at the bottom of the guide rod 15, so that the fine materials in the accommodating groove 45 can enter between the upper grinding disc 44 and the lower grinding disc 41 through the feeding groove 48 and the through holes 46, and the problem that a large amount of fine materials in the accommodating groove 45 cannot be ground is solved.
Embodiment III:
aiming at the problem that the sieve plate 17 is easy to be blocked when the sieve plate 17 filters coarse crushed materials, the method can be solved by the following scheme;
referring to fig. 1-4, 7 and 9, the inside of the treatment box 1 is rotatably connected with a rotation shaft 5 at the bottom of the screen plate 17, the bottom of the rotation shaft 5 is fixedly connected with a plurality of sleeves 51 along the length direction thereof at equal intervals, the impact area on the screen plate 17 can be enhanced by the plurality of sleeves 51, thereby improving screening efficiency, springs 52 are fixedly connected with the inside of each sleeve 51, the free ends of the springs 52 are fixedly connected with a knocking rod 53 which is slidably connected with the sleeves 51, the knocking rod 53 can not prevent the rotation of the rotation shaft 5 when knocking the screen plate 17 by the set springs 52, one end, far away from the first motor 22, of the rotation shaft 5 penetrates through the outside of the treatment box 1 and is fixedly connected with a driven wheel 54, the end, far away from the rotation shaft 21, of the first motor 22 penetrates through the outside of the treatment box 1 and is fixedly connected with a driving wheel 23, and the driving wheel 23 is in transmission connection with the driven wheel 54 through a belt 24.
The bottom of each guide plate 31 is fixedly provided with a vibrator 37 by bolts.
In this embodiment:
when the first motor 22 drives the crushing roller 2 to rotate, the crushing roller 2 drives the corresponding driving wheel 23 to rotate through the rotating shaft 21, the driving wheel 23 drives the driven wheel 54 to rotate through the belt 24, and then drives the rotating shaft 5 to rotate, the rotating shaft 5 drives the sleeve 51 to rotate in the rotating process, and the sleeve 51 knocks the bottom of the sieve plate 17 through the matching of the internal spring 52 and the knocking rod 53 during rotation, so that the filtering efficiency of the sieve plate 17 is improved, and the problem of blocking of the sieve plate 17 is prevented; when the coarse crushed materials are crushed and screened, the vibrator 37 is started, so that the efficiency of the coarse crushed materials on the material guide plate 31 entering the screen drum 3 can be improved, and the efficiency of fine crushing and discharging can be improved.
Embodiment four:
referring to fig. 1 to 9, a process for recycling a graphite anode, comprising the steps of:
step one: placing graphite electrode waste into the treatment box 1 through a feed hopper 11 in the crushing device, starting two groups of first motors 22 to drive the corresponding crushing rollers 2 to rotate, starting a second motor 36 to drive the crushing rollers 32 to rotate, and starting a third motor 47 to drive the upper grinding disc 44 to rotate;
step two: the crushing rollers 2 which are meshed relatively and rotate are convenient for carrying out preliminary crushing on graphite electrode waste to obtain coarse crushed materials, the coarse crushed materials fall on the sieve plate 17 through the meshed parts of the two groups of crushing rollers 2, the crushing rollers 2 drive the rotating shaft 5 to rotate through the cooperation of the driving wheel 23, the driven wheel 54 and the belt 24 in the rotating process, the rotating shaft 5 drives the sleeve 51 to rotate in the rotating process, the sleeve 51 knocks the bottom of the sieve plate 17 through the cooperation of the internal spring 52 and the knocking rod 53 in the rotating process, impurities in the coarse crushed materials are screened, and the impurities are discharged out of the treatment box 1 through the discharge port 18, so that the filtering efficiency of the sieve plate 17 is accelerated and the problem of blocking of the sieve plate 17 is prevented;
step three: the coarse crushed materials filtered by the sieve plate 17 enter the sieve cylinder 3 through the material guide plate 31, the first crushing cutter 34 on the surface of the coarse crushed materials is driven to rotate through the rotating crushing roller 32 and is matched with the second crushing cutter 35 in the sieve cylinder 3, fine crushing treatment is carried out on the coarse crushed materials, the fine crushed materials are filtered through the sieve cylinder 3 and fall into the accommodating groove 45 at the top of the upper millstone 44 through the matching of the material guide hopper 14, and when the coarse crushed materials are crushed and sieved, the vibrator 37 is started, so that the efficiency of the coarse crushed materials on the material guide plate 31 entering the sieve cylinder 3 is accelerated, and meanwhile, the fine crushing discharge efficiency is accelerated;
step four: the fine materials entering the accommodating groove 45 enter the through holes 46 through the feeding groove 48, then enter between the upper grinding disc 44 and the lower grinding disc 41, the third motor 47 drives the upper grinding disc 44 to rotate so as to grind the fine materials, meanwhile, the fine materials in the accommodating groove 45 are cleaned in the feeding groove 48 through the material guide rod 15 on the material guide hopper 14 and the cleaning brush 16, the problem that a large amount of fine materials stay in the accommodating groove 45 and cannot enter between the upper grinding disc 44 and the lower grinding disc 41 through the through holes 46, grinding treatment cannot be carried out is avoided, and the ground powder is discharged between the upper grinding disc 44 and the lower grinding disc 41 and falls to the bottom in the treatment box 1, and the treatment box 1 is discharged through the material discharge pipe 12.
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 (7)
1. The recovery treatment process of the graphite cathode is characterized by comprising the following steps of:
step one: placing graphite electrode waste into a treatment box (1) through a feed hopper (11) in a crushing device, starting two groups of first motors (22) to drive corresponding crushing rollers (2) to rotate, starting a second motor (36) to drive a crushing roller (32) to rotate, and starting a third motor (47) to drive an upper grinding disc (44) to rotate;
step two: preliminary crushing is carried out on graphite electrode waste products through two groups of crushing rollers (2) which are meshed and rotated relatively to obtain coarse crushed materials, the coarse crushed materials fall on a sieve plate (17) through the meshed positions of the two groups of crushing rollers (2), impurities in the coarse crushed materials are screened, and the impurities are discharged out of a treatment box (1) through a discharge port (18);
step three: the crushing roller (2) drives the rotating shaft (5) to rotate through the cooperation of the driving wheel (23), the driven wheel (54) and the belt (24) in the rotating process, the rotating shaft (5) drives the sleeve (51) to rotate in the rotating process, and the sleeve (51) knocks the bottom of the sieve plate (17) through the cooperation of the internal spring (52) and the knocking rod (53) in the rotating process, so that the filtering efficiency of the sieve plate (17) is improved, and the problem of blocking of the sieve plate (17) is prevented;
step four: the coarse crushed materials filtered by the sieve plate (17) enter the sieve cylinder (3) through the material guide plate (31), the first crushing cutter (34) on the surface of the coarse crushed materials is driven to rotate through the rotating crushing roller (32) and is matched with the second crushing cutter (35) in the sieve cylinder (3), the coarse crushed materials are finely crushed, the finely crushed materials are filtered through the sieve cylinder (3) and fall into the accommodating groove (45) at the top of the upper millstone (44) through the matching of the material guide plate (14), meanwhile, the vibrator (37) is started, the efficiency of the coarse crushed materials on the material guide plate (31) entering the sieve cylinder (3) is accelerated, and meanwhile, the finely crushed discharging efficiency is accelerated;
step five: fine materials entering the accommodating groove (45) enter the through hole (46) through the feeding groove (48), then enter between the upper grinding disc (44) and the lower grinding disc (41), drive the upper grinding disc (44) to rotate through the third motor (47) to grind the fine materials, meanwhile clean the fine materials in the accommodating groove (45) in the feeding groove (48) through the guide rod (15) and the cleaning brush (16) on the guide hopper (14), and the ground powder is discharged between the upper grinding disc (44) and the lower grinding disc (41) and falls to the bottom in the treatment box (1) through the discharge pipe (12) to be discharged out of the treatment box (1).
2. The recycling process of graphite cathode according to claim 1, wherein the smashing device comprises a processing box (1), two groups of mutually meshed smashing rollers (2) are symmetrically arranged in the processing box (1), the smashing rollers (2) are rotationally connected in the processing box (1) through rotating shafts (21) with two end parts symmetrically welded, a feeding hopper (11) is fixedly communicated between the two groups of smashing rollers (2) at the top of the processing box (1), and a first motor (22) for driving the corresponding smashing rollers (2) to rotate is fixedly arranged on the processing box (1);
the utility model provides a crushing roller (2) is located in processing case (1) below welding has a screen drum (3), screen drum (3) are three-quarter circular and the opening direction of screen drum (3) upwards, the welding has guide plate (31) between the inside wall of top both sides of screen drum (3) and processing case (1), the inside of screen drum (3) is provided with crushing roller (32) coaxial with screen drum (3), crushing roller (32) are through both ends tip symmetry welded bull stick (33) swivelling joint in processing case (1), the second crushing sword (35) have been densely distributed on the outer wall of crushing roller (32), fixed mounting has second motor (36) that are used for driving to correspond crushing roller (32) on processing case (1), the inside of processing case (1) is located the below of screen drum (3), the bottom of processing case (1) is fixed to be connected with in processing case (1) through the bull stick (33) swivelling joint, the bottom of processing case (1) is fixed array (13) of arranging, the bottom of processing case (1) is fixed array of welding.
3. The recycling process of graphite cathode according to claim 2, wherein the grinding mechanism (4) comprises a lower grinding disc (41), a fixed plate (42), a rotating rod (43), an upper grinding disc (44), a containing groove (45), a through hole (46) and a third motor (47), the lower grinding disc (41) is arranged in the treatment box (1), the fixed plate (42) is fixedly welded between the outer side wall of the lower grinding disc (41) and the inner side wall of the treatment box (1), the rotating rod (43) is rotatably connected to the center of the top of the lower grinding disc (41), an upper grinding disc (44) rotatably connected to the top of the lower grinding disc (41) is fixedly sleeved on the rotating rod (43), the containing groove (45) is formed in the top of the upper grinding disc (44), the through hole (46) is formed in the bottom of the containing groove (45) in a circumferential array, the through hole (46) penetrates through the upper grinding disc (44), a guide hopper (14) is fixedly welded above the upper grinding disc (44) in the treatment box (1), and the motor (47) is fixedly arranged at the bottom of the lower grinding disc (41) and is correspondingly provided with the third motor (47).
4. A graphite cathode recycling process according to claim 3, characterized in that a feed chute (48) communicated with a corresponding through hole (46) is formed in the top of the upper grinding disc (44), a material guide rod (15) is fixedly connected to one end of the inner wall of the material guide hopper (14) at the bottom, and a cleaning brush (16) in sliding connection with the bottom of the containing groove (45) is fixedly connected to the bottom of the material guide rod (15).
5. The recycling process of graphite cathode according to claim 2, wherein a screen plate (17) which is obliquely arranged is fixedly connected to the inside of the processing box (1), the screen plate (17) is located between the crushing roller (2) and the material guiding plate (31), a discharge opening (18) is formed in the outer side wall of the processing box (1) and located at the lowest top of the screen plate (17) in a penetrating mode, and a plurality of semicircular ribs (19) are fixedly connected to the top of the screen plate (17) in an equidistant mode along the length direction of the screen plate.
6. The recycling process of graphite cathode according to claim 5, wherein the inside of the treatment box (1) is located at the bottom of the screen plate (17) and is rotationally connected with a rotating shaft (5), the bottom of the rotating shaft (5) is fixedly connected with a plurality of sleeves (51) along the length direction of the rotating shaft, springs (52) are fixedly connected to the inside of each sleeve (51), a knocking rod (53) which is in sliding connection with each sleeve (51) is fixedly connected to the free end of each spring (52), one end, far away from the first motor (22), of the rotating shaft (5) penetrates through the outer side of the treatment box (1) and is fixedly connected with a driven wheel (54), the end, far away from the rotating shaft (21) of the first motor (22), penetrates through the outer side of the treatment box (1) and is fixedly connected with a driving wheel (23), and the driving wheel (23) is in transmission connection with the driven wheel (54) through a belt (24).
7. The recycling process of graphite negative electrode according to claim 2, wherein the bottom of each of the guide plates (31) is fixedly provided with a vibrator (37) by bolts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311124057.8A CN117000356A (en) | 2023-09-01 | 2023-09-01 | Recovery treatment process of graphite negative electrode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311124057.8A CN117000356A (en) | 2023-09-01 | 2023-09-01 | Recovery treatment process of graphite negative electrode |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117358365A (en) * | 2023-12-08 | 2024-01-09 | 河北旭鑫油脂有限公司 | Corn crusher and application method thereof |
| CN117816332A (en) * | 2023-11-21 | 2024-04-05 | 江苏宏远药业有限公司 | Calcium carbonate grinding and screening equipment with circulating feeding mechanism and use method thereof |
| CN118237148A (en) * | 2024-05-28 | 2024-06-25 | 杭州豪腾科技有限公司 | Crushing and grinding device for producing and processing copper oxide powder by utilizing copper sand |
| CN118320923A (en) * | 2024-05-07 | 2024-07-12 | 南通市传染病防治院(南通市第三人民医院) | Medical beauty injection gel preparation device |
| CN118577473A (en) * | 2024-08-07 | 2024-09-03 | 青岛龙迪碳材料科技有限公司 | A device and method for recovering graphite negative electrode of lithium ion battery |
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2023
- 2023-09-01 CN CN202311124057.8A patent/CN117000356A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117816332A (en) * | 2023-11-21 | 2024-04-05 | 江苏宏远药业有限公司 | Calcium carbonate grinding and screening equipment with circulating feeding mechanism and use method thereof |
| CN117358365A (en) * | 2023-12-08 | 2024-01-09 | 河北旭鑫油脂有限公司 | Corn crusher and application method thereof |
| CN117358365B (en) * | 2023-12-08 | 2024-02-23 | 河北旭鑫油脂有限公司 | Corn crusher and application method thereof |
| CN118320923A (en) * | 2024-05-07 | 2024-07-12 | 南通市传染病防治院(南通市第三人民医院) | Medical beauty injection gel preparation device |
| CN118237148A (en) * | 2024-05-28 | 2024-06-25 | 杭州豪腾科技有限公司 | Crushing and grinding device for producing and processing copper oxide powder by utilizing copper sand |
| CN118577473A (en) * | 2024-08-07 | 2024-09-03 | 青岛龙迪碳材料科技有限公司 | A device and method for recovering graphite negative electrode of lithium ion battery |
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Application publication date: 20231107 |
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