WO2023132675A1 - 슬러리 이송장치 및 이를 이용한 슬러리 이송방법 - Google Patents
슬러리 이송장치 및 이를 이용한 슬러리 이송방법 Download PDFInfo
- Publication number
- WO2023132675A1 WO2023132675A1 PCT/KR2023/000262 KR2023000262W WO2023132675A1 WO 2023132675 A1 WO2023132675 A1 WO 2023132675A1 KR 2023000262 W KR2023000262 W KR 2023000262W WO 2023132675 A1 WO2023132675 A1 WO 2023132675A1
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- WIPO (PCT)
- Prior art keywords
- slurry
- pressure
- air
- pump
- chamber
- Prior art date
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- 239000002002 slurry Substances 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000006257 cathode slurry Substances 0.000 claims description 9
- 239000011267 electrode slurry Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 abstract description 5
- 230000009471 action Effects 0.000 description 14
- 238000005086 pumping Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 239000006256 anode slurry Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 230000002542 deteriorative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000010349 pulsation Effects 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000007773 negative electrode material Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001994 activation Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
- F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/04—Pumps having electric drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/20—Filtering
-
- 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
-
- 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
- H01M4/04—Processes of manufacture in general
-
- 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
- H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
- H01M2004/027—Negative electrodes
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a slurry transfer device and a slurry transfer method using the same, and more particularly, to a negative slurry transfer device for a secondary battery and a negative electrode slurry transfer method for a secondary battery using the same.
- a secondary battery is a battery capable of converting chemical energy into electrical energy and discharging it, and conversely, when electrical energy is supplied in a discharged state, it can be stored again in the form of chemical energy, that is, charging and discharging It refers to a battery that can be repeated alternately.
- a secondary battery is manufactured through an electrode process, an assembly process, and an activation process.
- the negative electrode slurry mixing process of the mixing process corresponding to the first step of the electrode process the negative electrode active material, the conductive material, the binder, and the solvent are stirred to prepare a slurry form.
- the cathode slurry prepared in this way is stored in an external tank, and the slurry in the tank is transferred to a coating device for performing a coating process through a pumping operation of a pneumatically driven pump connected to the tank.
- a filter is disposed on the transfer line from the tank to the coating device.
- An object of the present invention is to provide a slurry transfer device capable of preventing the quality of the slurry from deteriorating during transfer and extending a filter replacement cycle, and a slurry transfer method using the same.
- a slurry transfer device related to an embodiment of the present invention to transfer the slurry in a tank in which the slurry is stored, a pump room through which the slurry passes, an air chamber and a pump room into which external air is introduced
- a pump disposed to partition the air chamber and including a diaphragm provided to adjust the volume of the pump chamber, a flow control unit connected to the pump and configured to control the flow rate of air supplied to the air chamber, and the slurry discharged from the pump
- a filter provided to pass through, a pressure sensor located between the pump and the filter, and measuring the pressure of the slurry being transported, and a flow rate controller based on the difference between the measured pressure measured by the pressure sensor and the air pressure supplied to the air chamber It includes a control unit that controls
- control unit is provided to increase the flow rate of air introduced into the air chamber when a difference between the air pressure supplied to the air chamber and the measured pressure measured by the pressure sensor is less than a predetermined reference pressure.
- control unit is provided to reduce the flow rate of air introduced into the air chamber when a difference between the air pressure supplied to the air chamber and the measured pressure measured by the pressure sensor is greater than a predetermined reference pressure.
- the reference pressure may be 0.1 bar to 0.5 bar.
- the reference pressure may be 0.5 bar.
- control unit may control the flow control unit so that the air pressure in the air chamber is greater than the measured pressure measured by the pressure sensor.
- the flow control unit may include a hole regulator.
- the pump may be provided to transport the slurry in the pump chamber when the air pressure in the air chamber is greater than the pressure in the pump chamber.
- the slurry is an anode slurry for a secondary battery
- the filter may be provided to filter foreign substances included in the conveyed anode slurry.
- a slurry transfer method using the slurry transfer device based on the difference between the measured pressure measured by the pressure sensor and the air pressure supplied to the air chamber, comprising the step of controlling the flow rate controller A slurry transfer method is provided.
- the slurry transfer method may include increasing a flow rate of air introduced into the air chamber when a difference between the air pressure supplied to the air chamber and the measured pressure measured by the pressure sensor is smaller than a predetermined reference pressure.
- the slurry transfer method may include reducing a flow rate of air introduced into the air chamber when a difference between the air pressure supplied to the air chamber and the measured pressure measured by the pressure sensor is greater than a predetermined reference pressure.
- the reference pressure may be 0.1 bar to 0.5 bar.
- the slurry may be an anode slurry for a secondary battery.
- the slurry transfer device and the slurry transfer method using the slurry transfer device according to at least one embodiment of the present invention it is possible to prevent the quality of the slurry from deteriorating during transfer and to increase the filter replacement cycle.
- FIG. 1 is a block diagram of a slurry transfer device related to an embodiment of the present invention.
- 2 to 5 are schematic diagrams for explaining an operating state of a pump constituting a slurry transfer device.
- FIGS. 2 to 5 are schematic diagrams for explaining an operating state of a pump 100 constituting the slurry transfer device 1 admit.
- the slurry may be an anode slurry for a secondary battery
- the slurry transfer device may be a slurry transfer device for a secondary battery
- a slurry transfer device 1 related to an embodiment of the present invention includes a tank 10, a pump 100, a filter 30, a pressure sensor 40, a control unit 50, and a flow control unit. (60).
- the slurry transfer device 1 is provided to transfer the slurry (S) in the tank 10 and the tank 10 in which the slurry (S) is stored, pump chambers 130 and 140 through which the slurry passes, Diaphragms 171 and 175 arranged to partition the air chamber 160 into which external air is introduced and the pump chambers 130 and 140 and the air chamber 160, and provided to adjust the volume of the pump chambers 130 and 140 )
- a pump 100 comprising a.
- the slurry transfer device 1 is connected to the pump 100, and the flow rate controller 60 for adjusting the flow rate of air supplied to the air chamber 160, the slurry discharged from the pump 100
- a filter 30 provided to pass through and a pressure sensor 40 positioned on a transfer path between the pump 100 and the filter 30 and measuring the pressure of the slurry being transferred are included.
- the slurry transfer device 1 includes a controller 50 that controls the flow rate controller 60 based on the difference between the measured pressure measured by the pressure sensor 40 and the air pressure supplied to the air chamber. .
- the slurry transfer device 1 may include an air supply unit 20 for supplying air to the pump 100 through the flow control unit 60.
- the air supply unit 20 is provided to supply air at a predetermined pressure, and the flow control unit 60 may perform a function of adjusting the flow rate and pressure of the air supplied from the air supply unit 20 .
- the flow rate controller 60 may include a hole regulator.
- control unit 50 is electrically connected to each of the pressure sensor and the flow control unit.
- the measured pressure measured by the pressure sensor 40 and the air pressure adjusted while passing through the flow control unit 60 are transmitted to the control unit 50, and the control unit 50 measures the measured pressure by the pressure sensor 40.
- the flow rate and pressure of the air passing through the flow controller 60 are adjusted. Through this, the air pressure of the air chamber 160 in the pump 100 can be adjusted.
- the slurry transfer device 1 may include a pipe part 70 for connecting the tank 10 and the pump 100.
- the pipe part 70 may include a first pipe 71 connecting the inlet end of the tank 10 and the pump P or 100, and a second pipe 72 connected to the discharge end of the pump 100. there is.
- the pressure sensor 40 and the filter 30 are provided on the second pipe 72, respectively, and the second pipe 72 is in the first region upstream of the filter 30 along the slurry conveying direction ( 73) and a downstream second area 74 passing through the filter 30.
- the slurry S may be transported through the second pipe 72 to the electrode coating process, which is the next process.
- the tank 10 stores the cathode slurry S prepared through the cathode mixing process.
- the negative electrode slurry may be a slurry in which a negative electrode active material, a conductive material, a binder, and a solvent are mixed.
- the types of the negative electrode active material, conductive material, binder, and solvent they are not particularly limited.
- the pump 100 is a device that transfers the slurry S by performing a pressure action, and transfers the cathode slurry stored in the tank 10.
- the pump 100 may be driven by an electrical signal.
- the pump 100 may be a low pulsation pump.
- the pump may be a pump with low vibration.
- the pump may have a pulsation of 0.2 bar or less.
- the pump 100 may be an electric double diaphragm pump, and for example, Graco's H2150E model may be used as the pump.
- This electric double diaphragm pump is provided so that when the air pressure in the air chamber is greater than the pressure in the pump chamber, the slurry in the pump chamber is transported by a pumping action.
- the electric double diaphragm pump is provided so that the pumping action is not performed in the pump chamber when the air pressure in the air chamber is lower than the pressure in the pump chamber. Therefore, for the pumping action, the air pressure in the air chamber is important, and the air pressure in the air chamber is configured to be adjustable through an electro-pneumatic regulator or the like.
- the pump 100 of one embodiment may be an electric double diaphragm pump, and the pump 100 includes first and second inlets 111 and 113, first and second It includes a housing 101 having two discharge parts 121 and 123.
- the slurry S_in flows into the housing 101 through the first and second inlets 111 and 113 .
- the first and second inlets 111 and 113 are connected to the first pipe 71 to allow fluid movement, respectively.
- the slurry (S-out) is discharged to the outside (second pipe) through the first and second discharge parts 121 and 123 by the pumping action inside the housing 101 .
- the first and second discharge units 121 and 123 are connected to the second pipe 72 to enable fluid movement, respectively.
- the pump 100 includes a first pump chamber 130, a second pump chamber 140, and an air chamber 160 respectively provided inside the housing 101.
- the first pump chamber 130 connects the first inlet 111 and the first discharge part 121, and the second pump chamber 140 connects the second inlet 113 and the second discharge part 123. do.
- the first and second pump chambers 130 and 140 are spaces in which the pumping action of the slurry introduced through the respective inlets is performed.
- the pump 100 includes a first diaphragm 171 provided to partition the first pump chamber 130 and the air chamber 160, and a first diaphragm 171 provided to partition the second pump chamber 140 and the air chamber 160. 2 diaphragms 175 are included.
- a driving unit 150 for expanding and contracting the first diaphragm 171 and the second diaphragm 175 is included.
- the driving unit 150 is disposed in the air chamber 160.
- the drive unit 150 changes the volume of the first pump chamber 130 and the second pump chamber 140 by interlocking and contracting the first diaphragm 171 and the second diaphragm 175, and as a result, the first Pumping action is performed alternately in the pump chamber 130 and the second pump chamber 140 .
- the driving part 150 is connected to the motor 151 and the driving shaft of the motor 151, and the cam 152 provided to rotate together with the motor, and the first receiving groove provided at a position facing the first pump chamber 130 ( 153a), a second receiving groove 153b provided at a position facing the second pump chamber 140, and a driving plate 153 having a cam hole 153c in which a cam 152 is disposed.
- a cam hole 153c may be positioned between the first and second receiving grooves 153a and 153b. Areas of the first and second accommodating grooves 153a and 153b facing the first and second pump chambers 130 and 140 are partially opened, and drive shafts 173 and 177 to be described later can pass through the open portions. there is.
- the drive unit 150 is disposed to be slidably movable in the first accommodating groove 153a, and slides in the first driving shaft 173 and the second accommodating groove 153b connected to the first diaphragm 171. It is movably disposed and includes a second driving shaft 177 connected to the second diaphragm 175 .
- a locking jaw 157 is provided in the first receiving groove 153a, and the locking jaw 157 is provided on the first driving shaft 173.
- a holding plate 174 provided to contact the 157 is provided.
- a locking jaw 157 is provided in the second receiving groove 153b, and the locking jaw 157 is provided on the second driving shaft 177.
- a locking plate 178 provided to contact the 157 is provided.
- the cam 152 rotates to make a circular motion C, and as the cam hole 153c is formed in the form of a long hole having a long axis in the vertical direction, the air chamber 160 Inside, the drive plate 153 moves in left and right directions (M: M1, M2) along an imaginary line connecting the first pump chamber 130 and the second pump chamber 140.
- the first pump chamber 130 has a first hole 112 connected to the first inlet 111 and a second hole 122 connected to the first outlet 121 .
- a first ball 131 disposed on the side of the first hole 112 and a first stopper 135 for closing the first hole 112 when in contact with the first ball 131
- a second ball 133 disposed on the side of the second hole 122
- a second stopper 137 provided to close the second hole 122 when in contact with the second ball 133.
- Each of the stoppers 135 and 137 may have a ring shape, and each of the balls 131 and 133 is disposed to be inserted into the opening of the ring when in contact with the stoppers 135 and 137, and the ball 131 , 133) is inserted into the opening of the ring, each hole 112, 122 is converted to a closed state.
- the slurry may flow through the ring openings of the stoppers 135 and 137 .
- the second pump chamber 140 has a third hole 114 connected to the second inlet 113 and a fourth hole 125 connected to the second outlet 123 .
- a third ball 141 disposed on the side of the third hole 114 and a third stopper 145 for closing the third hole 114 when in contact with the third ball 141 and a fourth ball 143 disposed on the side of the fourth hole 125 and a fourth stopper 147 provided to close the fourth hole 125 when in contact with the fourth ball 143 .
- Each of the stoppers may have a ring shape, and each ball is disposed to be inserted into the opening of the ring when in contact with the stopper, and when the ball is inserted into the opening of the ring, each hole is switched to a closed state .
- the first diaphragm 171 changes the volume of the first pump chamber 130
- the second diaphragm 175 changes the volume of the second pump chamber. Change the volume of (130).
- the first and second driving shafts 173 and 177 disposed in the respective receiving grooves 153a and 153b move, and accordingly, the first and second diaphragms 171 and 175 ) will expand and contract, respectively.
- the first diamond The area connected to the first driving shaft 173 of the fram 171 moves in a direction away from the second pump chamber, expands and contracts so that the volume of the first pump chamber 130 decreases, and the second diaphragm 175 moves away from the second pump chamber.
- the area connected to the driving shaft 177 moves in a direction closer to the first pump chamber, and expands and contracts so that the volume of the second pump chamber 140 increases.
- the first ball 131 contacts the first stopper 135 to close the first hole 112, and the second ball 133 is separated from the second stopper 137.
- the second hole 122 is opened.
- the slurry A1 in the first pump chamber 130 is discharged toward the first discharge port 121 through the second hole 122 by the pumping action.
- the third ball 141 is away from the third stopper 145 to open the third hole 114, and the fourth ball 143 contacts the fourth stopper 147
- the fourth hole 125 is closed.
- the slurry B1 flows into the second pump chamber 140 through the third hole 125 .
- the slurry B2 flows into the first pump chamber 130 through the first hole 112 .
- the third ball 141 contacts the third stopper 145 to close the third hole 114, and the fourth ball 143 is separated from the fourth stopper 147. , the fourth hole 125 is opened.
- the slurry A2 in the second pump chamber 140 is discharged toward the second outlet 123 through the fourth hole 125 by the pumping action.
- the drive plate 153 continuously moves in the left and right directions (M) in this way, the slurry is discharged alternately from the first pump chamber 130 and the second pump chamber 140 to the respective outlets, and the slurry transfer proceeds .
- the first surface of the diaphragm facing the pump chamber is pressurized by the slurry pressure Ps in the pump chamber, and the second surface opposite to the first surface of the diaphragm is an air chamber. is pressurized by the air pressure (Pa) of
- the first surface of the first diaphragm 171 facing the first pump chamber 130 is pressurized by the slurry pressure Ps in the first pump chamber 130, and the first surface of the first diaphragm 171 The second surface in the opposite direction to the surface is pressurized by the air pressure (Pa) of the air chamber (160).
- the first surface of the second diaphragm 175 facing the second pump chamber 140 is pressurized by the slurry pressure Ps in the second pump chamber 140, and the first surface of the second diaphragm 175
- the second surface in the opposite direction to the surface is pressurized by the air pressure (Pa) of the air chamber (160).
- the electric double diaphragm pump is provided so that when the air pressure (Pa) in the air chamber is greater than the pressure (Ps) in the pump chamber, the slurry in the pump chamber is transported by a pumping action, and the air pressure (Pa) in the air chamber is If it is less than the pressure (Ps) of, it is provided that the pumping action is not made in the pump chamber.
- each of the receiving grooves 153a and 153b is designed to be engaged with the locking jaw 157, and each of the driving shafts 173 and 177 are provided to move together with the movement of the driving plate 153. In this way, when the driving plate 153 moves, the respective driving shafts must be moved together so that the first and second diaphragms are stretched and contracted, and a pumping action occurs.
- the air pressure (Pa) of the air chamber 160 is important, and the air pressure (Pa) of the air chamber 160 is the above-described flow rate. It is provided to be adjustable through the control unit 60. In addition, for slurry transfer, the air pressure (Pa) of the air chamber 160 should be maintained higher than the pressure in the pump chamber by a preset reference pressure.
- the pump 100 is provided to transport the slurry in the pump chamber when the air pressure (Pa) in the air chamber is greater than the pressure (Ps) in the pump chamber, and the control unit 50 is the air chamber 160
- the difference between the air pressure supplied to and the measured pressure measured by the pressure sensor 40 is less than a predetermined reference pressure
- the flow rate of air introduced into the air chamber can be increased. That is, when the filter 30 is gradually clogged and the transfer pressure of the slurry in the second pipe 72 increases, the pressure Ps in each of the pump chambers 130 and 140 also increases.
- control unit 60 controls the flow rate controller 60 to increase the air flow rate supplied to the air chamber 160. do.
- reference numeral 61 denotes an air pipe 61 connecting the flow control unit 60 and the air chamber 160 .
- control unit 50 reduces the flow rate of air introduced into the air chamber 160 when the difference between the air pressure (Pa) supplied to the air chamber 160 and the measured pressure measured by the pressure sensor is greater than a predetermined reference pressure. can make it That is, when it is determined that the difference between the air pressure (Pa) and the pressure in the pump chamber is maintained greater than the reference pressure, the controller 50 may reduce the flow rate of air introduced into the air chamber.
- the reference pressure may be 0.1 bar to 0.5 bar, and the reference pressure may be 0.5 bar.
- control unit 50 may control the flow control unit 60 so that the air pressure in the air chamber is greater than the measured pressure measured by the pressure sensor.
- the air pressure in the air chamber may be a pressure adjusted by a predetermined pressure value in the flow control unit 60 .
- the filter 40 serves to filter the conveyed cathode slurry and is disposed on the discharge side of the pump.
- the cathode slurry transported by the pump may be transported to a next process after passing through the filter.
- the filter 40 may filter foreign substances included in the conveyed cathode slurry, and in one example, the filter may filter foreign substances having a particle size of 50 ⁇ m to 200 ⁇ m, for example. can be filtered.
- the pressure sensor 40 may be a pressure transmitter, and is provided to measure the pressure on the transfer line between the discharge end of the pump and the filter when the pump is driven. That is, it may be provided to measure the transfer pressure of the slurry in the first region 73 of the second pipe 72.
- control unit may be provided to perform control with a PLC (Programmable Logic Controller) for precision operation to which an automatic pressure correction program is applied.
- PLC Process Control Control
- the flow rate controller 60 may adjust the flow rate of air so that the air pressure in the air chamber is maintained higher than the pressure measured by the pressure transmitter.
- the air pressure in the air chamber is provided to be adjusted according to the flow rate of air introduced into the air chamber.
- the air supply unit 20 may be provided to supply air within a utility installed in a secondary battery manufacturing plant.
- the slurry transfer method related to an embodiment of the present invention includes the step of controlling the flow rate controller based on the difference between the measured pressure measured by the pressure sensor and the air pressure supplied to the air chamber include
- the slurry transfer method may include increasing a flow rate of air introduced into the air chamber when a difference between the air pressure supplied to the air chamber and the measured pressure measured by the pressure sensor is smaller than a predetermined reference pressure.
- the slurry transfer method may include reducing a flow rate of air introduced into the air chamber when a difference between the air pressure supplied to the air chamber and the measured pressure measured by the pressure sensor is greater than a predetermined reference pressure.
- the reference pressure may be 0.1 bar to 0.5 bar.
- the slurry may be an anode slurry for a secondary battery.
- the slurry transfer device and the slurry transfer method using the slurry transfer device according to at least one embodiment of the present invention it is possible to prevent the quality of the slurry from deteriorating during transfer and increase the filter replacement cycle.
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
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- Reciprocating Pumps (AREA)
Abstract
Description
Claims (14)
- 슬러리가 저장된 탱크;탱크 내 슬러리를 이송시키도록 마련되며, 슬러리가 통과하는 펌프실, 외부 공기가 유입되는 공기실 및 펌프실과 공기실을 구획하도록 배치되고, 펌프실의 체적을 조절하도록 마련된 다이아프램을 포함하는 펌프;펌프에 연결되며, 상기 공기실로 공급되는 공기의 유량을 조절하기 위한 유량 조절부;펌프로부터 토출된 슬러리가 통과하도록 마련된 필터;상기 펌프와 필터 사이에 위치되며, 이송 중인 슬러리의 압력을 측정하기 위한 압력 센서; 및상기 압력센서에서 측정되는 측정 압력 및 공기실로 공급되는 공기 압력의 차이에 기초하여, 유량 조절부를 제어하는 제어부를 포함하는 슬러리 이송 장치.
- 제 1 항에 있어서,상기 제어부는 공기실로 공급되는 공기압력과 상기 압력센서에서 측정되는 측정 압력의 차이가 소정 기준 압력 보다 작으면, 상기 공기실로 유입되는 공기의 유량을 증가시키는 슬러리 이송 장치.
- 제 2 항에 있어서,상기 제어부는 공기실로 공급되는 공기압력과 상기 압력센서에서 측정되는 측정 압력의 차이가 소정 기준 압력 보다 크면, 상기 공기실로 유입되는 공기의 유량을 감소시키는 슬러리 이송 장치.
- 제 2 항에 있어서, 상기 기준 압력은 0.1 bar 내지 0.5 bar인 슬러리 이송 장치.
- 제 4 항에 있어서, 상기 기준압력은 0.5 bar인 음극 슬러리 이송 장치.
- 제 1 항에 있어서, 상기 제어부는, 공기실의 공기 압력이 압력센서에서 측정된 측정압력보다 크도록 유량 조절부를 제어하는 슬러리 이송 장치.
- 제 1 항에 있어서,상기 유량 조절부는 정공 레귤레이터를 포함하는 슬러리 이송 장치.
- 제 1 항에 있어서,상기 펌프는 공기실의 공기 압력이 펌프실의 압력보다 클 때, 펌프실 내 슬러리가 이송되도록 마련된 슬러리 이송 장치.
- 제 1 항에 있어서,상기 슬러리는 이차전지용 음극 슬러리인, 슬러리 이송 장치.
- 제 1 항에 따른 슬러리 이송 장치를 이용한 슬러리 이송 방법으로서,압력센서에서 측정되는 측정 압력 및 공기실로 공급되는 공기 압력의 차이에 기초하여, 유량 조절부를 제어하는 단계를 포함하는 슬러리 이송 방법.
- 제 10 항에 있어서,공기실로 공급되는 공기압력과 상기 압력센서에서 측정되는 측정 압력의 차이가 소정 기준 압력 보다 작으면, 상기 공기실로 유입되는 공기의 유량을 증가시키는 단계를 포함하는 슬러리 이송 방법.
- 제 11 항에 있어서,공기실로 공급되는 공기압력과 상기 압력센서에서 측정되는 측정 압력의 차이가 소정 기준 압력 보다 크면, 상기 공기실로 유입되는 공기의 유량을 감소시키는 단계를 포함하는 슬러이 이송 방법.
- 제 11 항에상기 기준 압력은 0.1 bar 내지 0.5 bar인 슬러리 이송 방법.
- 제 10 항에 있어서,상기 슬러리는 이차전지용 음극 슬러리인 슬러리 이송 방법.
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CN202380012083.3A CN117413375A (zh) | 2022-01-06 | 2023-01-06 | 浆料输送装置及使用其的浆料输送方法 |
EP23737423.6A EP4343880A1 (en) | 2022-01-06 | 2023-01-06 | Slurry transfer device, and slurry transfer method using same |
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EP (1) | EP4343880A1 (ko) |
KR (1) | KR20230106529A (ko) |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990028192A (ko) * | 1997-09-18 | 1999-04-15 | 가즈마사 야마다 | 다이아프램 펌프 |
US6544424B1 (en) * | 1999-12-03 | 2003-04-08 | Refined Technology Company | Fluid filtration system |
JP2017054762A (ja) * | 2015-09-11 | 2017-03-16 | Necエナジーデバイス株式会社 | 二次電池用の電極および二次電池の製造方法と二次電池用の電極の製造装置 |
KR20180105969A (ko) * | 2017-03-16 | 2018-10-01 | 에스케이이노베이션 주식회사 | 이차전지용 슬러리의 대용량 정밀 이송 장치 및 방법 |
WO2019028267A1 (en) * | 2017-08-03 | 2019-02-07 | Repligen Corporation | METHOD FOR OPERATING AN ALTERNATIVE TANGENTIAL FLOW DIAPHRAGM PUMP |
CN112170125A (zh) * | 2020-10-09 | 2021-01-05 | 昆山聚创新能源科技有限公司 | 电池涂布机浆料自动输送系统 |
KR20220001881A (ko) | 2020-06-30 | 2022-01-06 | 주식회사 아모라이프사이언스 | 항원 제시 자성비드 |
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2023
- 2023-01-06 WO PCT/KR2023/000262 patent/WO2023132675A1/ko active Application Filing
- 2023-01-06 CN CN202380012083.3A patent/CN117413375A/zh active Pending
- 2023-01-06 EP EP23737423.6A patent/EP4343880A1/en active Pending
- 2023-01-06 KR KR1020230002027A patent/KR20230106529A/ko unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19990028192A (ko) * | 1997-09-18 | 1999-04-15 | 가즈마사 야마다 | 다이아프램 펌프 |
US6544424B1 (en) * | 1999-12-03 | 2003-04-08 | Refined Technology Company | Fluid filtration system |
JP2017054762A (ja) * | 2015-09-11 | 2017-03-16 | Necエナジーデバイス株式会社 | 二次電池用の電極および二次電池の製造方法と二次電池用の電極の製造装置 |
KR20180105969A (ko) * | 2017-03-16 | 2018-10-01 | 에스케이이노베이션 주식회사 | 이차전지용 슬러리의 대용량 정밀 이송 장치 및 방법 |
WO2019028267A1 (en) * | 2017-08-03 | 2019-02-07 | Repligen Corporation | METHOD FOR OPERATING AN ALTERNATIVE TANGENTIAL FLOW DIAPHRAGM PUMP |
KR20220001881A (ko) | 2020-06-30 | 2022-01-06 | 주식회사 아모라이프사이언스 | 항원 제시 자성비드 |
CN112170125A (zh) * | 2020-10-09 | 2021-01-05 | 昆山聚创新能源科技有限公司 | 电池涂布机浆料自动输送系统 |
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KR20230106529A (ko) | 2023-07-13 |
EP4343880A1 (en) | 2024-03-27 |
CN117413375A (zh) | 2024-01-16 |
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