Apparatus for pulverizing positive electrode material

Abstract

Provided is an apparatus for pulverizing a positive electrode material, the apparatus comprising: a primary pulverizing device configured to receive a calcined positive electrode material and primarily pulverize same; an input device configured to input the calcined positive electrode material into the primary pulverizing device; a blower configured to transfer the primarily pulverized positive electrode material from the primary pulverizing device to a filter; and a controller configured to control operations of the input device, wherein the controller is configured to receive a process variable of the blower, and determine that a pipe is clogged if the value of the received process variable is out of a normal range.

Description

Anode material crushing device

[0001] The present invention relates to an anode material crushing device, and more specifically, to an anode material crushing device capable of effectively clearing blockages in piping caused by crushed anode material.

[0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2024-0133246 dated September 30, 2024 and Korean Patent Application No. 10-2025-0138064 dated September 24, 2025, and all contents disclosed in the documents of said Korean patent applications are incorporated herein as part of this specification.

[0003] Lithium-ion batteries are widely used as power sources for various electronic devices, such as portable electronic devices, due to the need for high functionality, lightweight design, and long usage time. In lithium-ion batteries, the electrode material is composed by coating a positive active material and a negative active material onto a film-type positive current collector and a negative current collector, respectively. In the manufacturing process of the positive active material, the positive material undergoes several processes, and various methods are required for the smooth transport of the positive material.

[0004] The technical problem that the present invention aims to solve is to provide an anode material crushing device capable of effectively relieving blockage of a pipe caused by crushed anode material.

[0005] To achieve the above technical problem, the present invention provides an anode material grinding device comprising: an inversion device configured to receive an inversion container containing a calcined anode material and invert the inversion container to feed the anode material into a primary grinding device; a primary grinding device configured to receive the calcined anode material from the inversion device and perform primary grinding; a blower configured to transfer the primary ground anode material from the primary grinding device to a filter; a secondary grinding device configured to perform secondary grinding of the anode material filtered from the filter; and a controller configured to control the operation of the inversion device, wherein the controller receives process variables of the blower and determines whether the pipe is clogged based thereon, and is configured to stop the operation of the inversion device if it is determined that the pipe is clogged.

[0006] In some embodiments, the controller is configured to receive the current value flowing through the blower in real time, and may be configured to stop the operation of the inversion device when the current value flowing through the blower deviates from the normal range.

[0007] In some embodiments, the controller may be configured to determine that the pipe is blocked if the current flowing through the blower exceeds 30% of the normal current value.

[0008] In some embodiments, the controller may be configured to determine in real time whether the current value flowing through the blower, which is input in real time, deviates from the normal range.

[0009] In some embodiments, the primary crushing device includes an opening disposed at the bottom of the inversion device, and the inversion device may be configured to invert the inversion container at the top of the opening and to supply the anode material to the primary crushing device through the opening by gravity.

[0010] In some embodiments, the controller is configured to receive the flow rate of the gas passing through the blower in real time, and may be configured to stop the operation of the inversion device when the gas flowing through the blower deviates from the normal range.

[0011] In some embodiments, the anode material grinding device further includes an ejector provided between the primary grinding device and the filter, the outlet of the primary grinding device is connected to the inlet of the ejector by a first conduit, the outlet of the ejector is connected to one side of the filter by a second conduit, and the blower may be connected to the other side of the filter.

[0012] In some embodiments, the primary grinding device may include two stages of roll mills arranged in the direction of gravity.

[0013] In some embodiments, the ejector may be positioned at the bottom of the primary crushing device in the direction of gravity.

[0014] In some embodiments, the controller may be configured to resume the operation of the inversion device when it is determined that the process variable of the blower has recovered to within a normal range.

[0015] In some embodiments, the controller is configured to further control the operation of the primary crushing device, and the controller may be configured to simultaneously stop the operation of the primary crushing device when the operation of the inversion device is stopped.

[0016] In some embodiments, the controller may be configured to simultaneously resume the operation of the primary crusher when the operation of the inversion device is resumed.

[0017] Another aspect of the present invention provides an anode material grinding device comprising: a primary grinding device configured to receive a calcined anode material and grind it in a primary manner; an input device configured to input the calcined anode material into the primary grinding device; a blower for transferring the primary ground anode material from the primary grinding device to a filter; and a controller configured to control the operation of the input device, wherein the controller receives a process variable of the blower and determines that the pipe is clogged if the value of the received process variable deviates from a normal range.

[0018] In some embodiments, the process variable is a current value flowing through the blower, and the controller may be configured to determine that the piping is clogged if the current value flowing through the blower fluctuates beyond a normal range.

[0019] In some embodiments, the process variable is the flow rate of the fluid passing through the blower, and the controller may be configured to determine that the piping is blocked if the fluid flowing through the blower fluctuates beyond a normal range.

[0020] In some embodiments, the process of the controller receiving process variables of the blower and determining whether the value of the received process variables deviates from the normal range to determine whether the pipe is clogged can be performed in real time.

[0021] In some embodiments, a secondary grinding device configured to secondary grind the anode material filtered in the filter may be further included.

[0022] The anode material crushing device of the present invention can effectively resolve the blockage of a pipe caused by crushed anode material.

[0023] The effects obtainable from the exemplary embodiments of the present invention are not limited to those mentioned above, and other unmentioned effects can be clearly derived and understood by those skilled in the art to which the exemplary embodiments of the present disclosure belong from the following description. That is, unintended effects resulting from the implementation of the exemplary embodiments of the present disclosure can also be derived by those skilled in the art from the exemplary embodiments of the present disclosure.

[0024] FIG. 1 is a schematic diagram conceptually showing an anode material crushing device according to one embodiment of the present invention.

[0025] FIG. 2 is a schematic process diagram showing an anode material crushing device according to one embodiment of the present invention.

[0026] Figure 3 is a graph showing the change in the actual current value flowing through the blower when the above-mentioned pipe is blocked and the blockage is cleared.

[0027] Hereinafter, preferred embodiments of the concept of the present invention will be described in detail with reference to the accompanying drawings. However, embodiments of the concept of the present invention may be modified in various different forms, and the scope of the concept of the present invention should not be interpreted as being limited by the embodiments described below. It is preferable to interpret the embodiments of the concept of the present invention as being provided to more completely explain the concept of the present invention to those with average knowledge in the art. Identical reference numerals denote identical elements throughout. Furthermore, various elements and areas in the drawings are depicted schematically. Accordingly, the concept of the present invention is not limited by the relative sizes or spacing depicted in the accompanying drawings.

[0028] Terms such as first, second, etc. may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the concept of the present invention, the first component may be named the second component, and conversely, the second component may be named the first component.

[0029] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the concept of the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, expressions such as "comprising" or "having" are intended to indicate the existence of the features, number, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, actions, components, parts, or combinations thereof.

[0030] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by those skilled in the art to which the concept of the present invention pertains. Furthermore, it will be understood that commonly used terms, such as those defined in advance, should be interpreted as having meanings consistent with their intent in the context of the relevant technology, and should not be interpreted in an overly formal sense unless explicitly defined herein.

[0031] Where an embodiment can be implemented differently, a specific process sequence may be performed differently from the order described. For example, two processes described in succession may be performed substantially simultaneously or in the reverse order of the description.

[0032] In the accompanying drawings, variations of the depicted shapes may be expected, for example, depending on manufacturing technology and / or tolerances. Accordingly, embodiments of the present invention should not be interpreted as being limited to specific shapes of the areas depicted herein, but should include, for example, variations in shape resulting from the manufacturing process. All terms "and / or" used herein include each of the mentioned components and all combinations of one or more thereof. Additionally, the term "substrate" as used herein may refer to the substrate itself, or a laminated structure including the substrate and a certain layer or film formed on its surface. Furthermore, the term "surface of the substrate" in this specification may refer to the exposed surface of the substrate itself, or the outer surface of a certain layer or film formed on the substrate.

[0033]

[0034] FIG. 1 is a schematic diagram conceptually showing an anode material crushing device (100) according to one embodiment of the present invention.

[0035] Referring to FIG. 1, the anode material crushing device (100) may include an input device (110) configured to input the anode material calcined in a preceding process into a subsequent primary crushing device (121), a primary crushing device (121) configured to receive the calcined anode material from the input device (110) and perform primary crushing, a blower (130) for transferring the primary crushed anode material to a filter (140), and a controller (150) configured to control the operation of the input device (110).

[0036] The primary grinding device (121) can grind the anode material calcined in the preceding process to have an average particle size of several µm to several hundred µm. In some embodiments, the primary grinding device (121) can grind the anode material calcined in the preceding process to have an average particle size of about 1 µm to about 100 µm. In some embodiments, the primary grinding device (121) can grind the anode material calcined in the preceding process to have an average particle size of about 50 µm to about 1000 µm. In some embodiments, the primary grinding device (121) can grind the anode material calcined in the preceding process to have an average particle size of about 1 µm to about 30 µm.

[0037] In some embodiments, the primary crushing device (121) may be a ball mill, a vertical roller mill, a high-pressure roller mill, a hammer mill, a pebble mill, a cone mill, an E-mill, or a jaw crusher, but the invention is not limited thereto.

[0038] The 'first' of the above first crushing device (121) does not necessarily mean or imply that a second crushing device exists.

[0039] The above-mentioned input device (110) may be any device configured to input the anode material, which was calcined in a previous calcination process, into the interior of the above-mentioned primary crushing device (121). In some embodiments, the above-mentioned input device (110) may be an inversion device, which will be described in more detail later.

[0040] In some embodiments, the input device (110) may be positioned above the primary crushing device (121) in the direction of gravity. The input device (110) may be configured to input the calcined anode material into the primary crushing device (121) using gravity.

[0041] The anode material crushed in the above primary crushing device (121) can be transferred to a filter (140) by a blower (130).

[0042] In FIG. 1, the blower (130) is shown positioned between the primary crushing device (121) and the filter (140), but the present invention is not limited to this arrangement.

[0043] In some embodiments, anode material with a particle size larger than a predetermined size in the filter (140) may be recycled to the primary grinding device (121) for further grinding. Anode material having a particle size smaller than a predetermined size may pass through the filter (140) and be transferred to the next process.

[0044] In some embodiments, the anode material grinding device (100) may further include a secondary grinding device (122). The secondary grinding device (122) may grind the anode material that has passed through the filter (140) to have a smaller average particle size.

[0045] The secondary grinding device (122) can grind the anode material calcined in the preceding process to have an average particle size of several µm or less or several tens of µm or less. In some embodiments, the secondary grinding device (122) can grind the anode material ground in the primary grinding device (121) to have an average particle size of about 0.1 µm to about 30 µm. In some embodiments, the secondary grinding device (122) can grind the anode material ground in the primary grinding device (121) to have an average particle size of about 0.1 µm to about 10 µm. In some embodiments, the secondary grinding device (122) can grind the anode material ground in the primary grinding device (121) to have an average particle size of about 0.5 µm to about 30 µm.

[0046] In some embodiments, the secondary crushing device (122) may be a ball mill, a vertical roller mill, a high-pressure roller mill, a hammer mill, a pebble mill, a cone mill, an E-mill, or a jaw crusher, but the invention is not limited thereto.

[0047] The controller (150) may be configured to control the operation of the input device (110). More specifically, the controller (150) may be configured to receive process variables of the blower (130) and control the operation of the input device (110) based thereon. That is, the controller (150) may be configured to determine that the piping between the primary crushing device (121) and the filter (140) is clogged if the value of the process variable received from the blower (130) deviates from the normal range. The controller (150) may be configured to temporarily stop the operation of the input device (110) when it determines that the piping is clogged.

[0048] In some embodiments, the process variable may be a current value of the current flowing through the blower (130). In particular, the current may be a current flowing through the blower (130) to drive the blower (130). The controller (150) may be configured to receive the current value flowing through the blower (130) in real time and to determine that the pipe is clogged if the current value exceeds a normal range.

[0049] In some embodiments, the controller (150) may store a normal range of current values ​​flowing through the blower (130). The controller (150) may be configured to receive the current value flowing through the blower (130) in real time, compare it with the stored normal range of current values ​​in real time, and determine that the pipe is clogged if the input current value deviates from the normal range.

[0050] In some embodiments, the controller (150) may use an instantaneous current value as the current value flowing through the blower (130). In this case, the controller (150) may compare the instantaneous current value with the normal range of the stored current value in real time.

[0051] In some other embodiments, the controller (150) may use an average current value over a predetermined time range as the current value flowing through the blower (130). The time range for calculating the average current value may be about 1 second to about 1 minute. In this case, the controller (150) may compare the average current value in real time with the normal range of the stored current value.

[0052] In some embodiments, the normal range may be directly input and stored in the controller (150). In some embodiments, a normal current value may be input and stored in the controller (150), and the normal range may be calculated from the normal current value. In some embodiments, the normal range may be in the range of 0.9 to 1.3 times the normal current value. In this case, if the current value flowing through the blower (130) exceeds 30% of the normal current value, the controller (150) may determine that the current value is outside the normal range.

[0053] In some embodiments, the process variable may be the flow rate of the gas passing through the blower (130). The controller (150) may be configured to receive the flow rate of the gas flowing through the blower (130) in real time and to determine that the pipe is blocked if the flow rate deviates from the normal range.

[0054] In some embodiments, the controller (150) may store a normal range of the flow rate of the fluid flowing through the blower (130). The controller (150) may be configured to receive the flow rate of the fluid flowing through the blower (130) in real time, compare it with the stored normal range of the flow rate in real time, and determine that the pipe is blocked if the received flow rate deviates from the normal range.

[0055] In some embodiments, the controller (150) may use an instantaneous flow rate as the flow rate of the fluid flowing through the blower (130). In this case, the controller (150) may compare the instantaneous flow rate in real time with the normal range of the stored flow rate.

[0056] In some other embodiments, the controller (150) may use an average flow rate over a predetermined time range as the flow rate of the fluid flowing through the blower (130). The time range for calculating the average flow rate may be about 1 second to about 1 minute. In this case, the controller (150) may compare the average flow rate in real time with the normal range of the stored current value.

[0057] In some embodiments, the normal range may be directly input and stored in the controller (150). In some embodiments, the normal flow rate may be input and stored in the controller (150), and the normal range may be calculated from the normal flow rate. In some embodiments, the normal range may be in the range of 0.5 to 1.2 times the normal flow rate. In this case, if the flow rate of the fluid flowing through the blower (130) is less than 50% of the normal flow rate, the controller (150) may determine that the flow rate is outside the normal range.

[0058]

[0059] FIG. 2 is a schematic process diagram showing an anode material crushing device (100a) according to one embodiment of the present invention.

[0060] Referring to FIG. 2, the anode material crushing device (100a) may include an input device (110) capable of receiving an inversion container (10) containing a calcined anode material (AM) and feeding it into a primary crushing device (121), a primary crushing device (121) configured to receive and crush the anode material (AM) from the input device (110), a blower (130) configured to feed the anode material (AM) crushed in the primary crushing device (121) to a filter (140), and a controller (150) configured to control the operation of the input device (110).

[0061] In some embodiments, the anode material (AM) produced in the previous process may be contained in an inversion container (10) and transferred to the input device (110). In some embodiments, the input device (110) may be an inversion device capable of inverting the inversion container (10). In some embodiments, the input device (110) may secure the inversion container (10) and invert it 180 degrees. This causes the direction in which the opening of the inversion container (10) faces downward in the direction of gravity, and the anode material (AM) contained inside the inversion container (10) may be discharged to the outside of the inversion container (10) by gravity.

[0062] The operation of the above-mentioned input device (110) can be controlled by the controller (150).

[0063] The above primary crushing device (121) can primary crush the calcined anode material (AM) fed from the above input device (110) to have a predetermined average particle size. Here, 'primary' does not mean or imply that secondary crushing is necessarily required or that a secondary crushing device necessarily exists.

[0064] In some embodiments, the primary crushing device (121) may include an opening (121o) positioned at the bottom of the input device (110) (i.e., inversion device) in the direction of gravity. Additionally, the primary crushing device (121) may receive an anode material (AM) from the input device (110) through the opening (121o). The inversion container (10) may be inverted at the top in the direction of gravity of the opening (121o) of the input device (110) (i.e., inversion device).

[0065] In some embodiments, the primary grinding device (121) may include two stages of roll mills (121a, 121b) arranged in the direction of gravity. The first roll mill (121a), arranged at the top in the direction of gravity, may be configured to grind the anode material (AM) supplied from the input device (110) into a relatively larger size. The second roll mill (121b), arranged at the bottom in the direction of gravity, may be configured to grind the anode material (AM) supplied from the first roll mill (121a) into a relatively smaller size.

[0066] The particle size of the anode material (AM) crushed in the primary crushing device (121) has been explained with reference to FIG. 1, so the explanation is omitted here.

[0067] The anode material (AM) crushed in the primary crushing device (121) can be discharged to the outside of the primary crushing device (121) through the first conduit (171). The anode material (AM) can be transferred to the filter (140) by passing through the first conduit (171).

[0068] In some embodiments, anode material (AM) with a particle size larger than a predetermined size in the filter (140) may be recycled to the primary grinding device (121) for further grinding. Anode material having a particle size smaller than a predetermined size may pass through the filter (140) and be transferred to the next process.

[0069] In some embodiments, the recycled anode material (AM) may be transported between the first roll mill (121a) and the second roll mill (121b). Although not specifically illustrated in FIG. 2, in some embodiments, the recycled anode material (AM) may be transported to the first roll mill (121a) through the opening (121o).

[0070] In some embodiments, a low pressure can be formed in the filter (140) by a blower (130) to transfer the anode material (AM) discharged from the primary grinding device (121) to the filter (140). The anode material (AM) discharged from the primary grinding device (121) can be transferred to the filter (140) by the low pressure formed in the filter (140).

[0071] In some embodiments, an ejector (160) may be further provided in the anode material crushing device (100a) to more smoothly transport the anode material (AM) discharged from the primary crushing device (121) to the filter (140). The ejector (160) may be positioned at the bottom of the primary crushing device (121) in the direction of gravity.

[0072] The ejector (160) may be provided between the primary crushing device (121) and the filter (140) in terms of connection relationships through conduits (171, 172). Specifically, the outlet of the primary crushing device (121) is connected to the inlet (161) of the ejector (160) by the first conduit (171), and the outlet (162) of the ejector (160) is connected to the filter (140) by the second conduit (172). The second conduit (172) may be connected to one side of the filter (140), and the blower (130) may be connected to the other side of the filter (140).

[0073] In some embodiments, a non-reactive gas (G), such as nitrogen, may be supplied to the ejector (160) as a motive fluid to smoothly carry the anode material (AM) in a solid powder state. The non-reactive gas (G) supplied to the ejector (160) may ultimately be discharged from the blower (130).

[0074] In some embodiments, the anode material grinding device (100a) may further include a secondary grinding device (122). The anode material (AM) that has passed through the filter (140) may be further ground in the secondary grinding device (122). In FIG. 2, the secondary grinding device (122) is depicted as a roller mill, but this is exemplary and the invention is not limited thereto.

[0075] The particle size of the anode material (AM) crushed in the above secondary crushing device (122) has been explained with reference to FIG. 1, so the explanation is omitted here.

[0076]

[0077] The controller (150) may be configured to receive process variables of the blower (130) and, based on this, control the operation of the input device (110), such as an inversion device. That is, the controller (150) may be configured to determine that the pipe between the primary crushing device (121) and the filter (140) is clogged if the value of the process variable received from the blower (130) deviates from the normal range. The controller (150) may be configured to temporarily stop the operation of the input device (110) when it determines that the pipe is clogged.

[0078] In some embodiments, the process variable may be a current value of the current flowing through the blower (130). In particular, the current may be a current flowing through the blower (130) to drive the blower (130) to transfer the anode material (AM) discharged from the primary crushing device (121) to the filter (140). The controller (150) may be configured to receive the current value flowing through the blower (130) in real time and to determine that the piping between the primary crushing device (121) and the filter (140) is clogged if the current value deviates from the normal range. In some embodiments, the controller (150) may be configured to determine that the piping between the primary crushing device (121) and the filter (140) is clogged if the current value flowing through the blower (130) exceeds the upper limit of the normal range.

[0079] As the configuration in which the controller (150) receives a current value and determines that the pipe is blocked, temporarily stops the operation of the insertion device (110), has been explained in detail with reference to FIG. 1, further explanation is omitted here.

[0080] In some embodiments, the ejector (160) may continue to operate when the operation of the input device (110) is temporarily stopped. In some embodiments, a non-reactive gas (G) may continue to be supplied to the ejector even when the operation of the input device (110) is temporarily stopped. By continuing to supply the non-reactive gas (G) to the ejector (160) while the operation of the input device (110) is temporarily stopped, the blockage of the piping may be resolved on its own without any other additional measures.

[0081]

[0082] Figure 3 is a graph showing the change in the actual current value flowing through the blower (130) when the pipe is blocked and the blockage is cleared.

[0083] Referring to FIG. 3, the current flowing through the blower (130) begins to increase at time point (M+5). It can be seen that the current flowing through the blower (130) has a value of approximately 15 in a normal state. The current value, which began to increase at time point (M+5), increases to about 24, which is about 60% higher than the normal current value assuming the normal current value is 15.

[0084] The controller (150) may determine that the current value has deviated from the normal range when the current value reaches approximately 20 and may stop the operation of the input device (110). Since the blockage of the pipe is not immediately cleared even after the operation of the input device (110) is stopped, the current value may continue to increase for a predetermined period of time after the operation of the input device (110) is stopped. However, because the operation of the input device (110) is stopped, additional anode material (AM) is not fed into the primary crushing device (121). Since the ejector (160) continues to operate, the blockage of the pipe is gradually cleared, and ultimately, it can be seen that the current value begins to decrease around time point (M+7) without any further action.

[0085] It can be seen that the current value begins to decrease rapidly from around time point (M+7) and reaches almost a normal current value near time point (M+9), and the controller (150) can restart the operation of the input device (110) when the current value recovers to within the normal range.

[0086] In fact, in the example illustrated in FIG. 3, the blockage of the pipe was automatically cleared simply by stopping the operation of the insertion device (110) without any special measures to clear the pipe. In addition, the waste of expensive anode material (AM) was prevented during the process of clearing the blockage of the pipe.

[0087]

[0088] Referring again to FIG. 2, in some embodiments, the controller (150) may be configured to further control the operation of the primary crushing device (121). In some embodiments, the controller (150) may be configured to simultaneously stop the operation of the primary crushing device (121) when the operation of the input device (110) is stopped.

[0089] When a blockage occurs in the pipe, if the operation of the primary crushing device (121) as well as the operation of the input device (110) is stopped, additional anode material (AM) is not introduced into the pipe (171, 172), so the blockage in the pipe can be cleared more quickly and efficiently.

[0090] In this case, when the blockage of the above pipe is cleared, the controller (150) may be configured to resume the operation of the inversion device (110) and at the same time resume the operation of the primary crushing device (121).

[0091]

[0092] In some embodiments, the process variable input to the controller (150) may be the flow rate of the gas passing through the blower (130). The controller (150) may be configured to receive the flow rate of the gas flowing through the blower (130) in real time and to determine that the pipe is blocked if the flow rate deviates from the normal range. In some embodiments, the controller (150) may be configured to determine that the pipe between the primary crushing device (121) and the filter (140) is blocked if the flow rate of the gas passing through the blower (130) falls below the lower limit of the normal range.

[0093] As the configuration in which the controller (150) receives a flow rate and determines that the pipe is blocked, temporarily stops the operation of the input device (110), has been explained in detail with reference to FIG. 1, further explanation is omitted here.

[0094]

[0095] As described above, although embodiments of the present invention have been described in detail, a person skilled in the art to which the present invention pertains will be able to modify and implement the present invention in various ways without departing from the spirit and scope of the present invention as defined in the appended claims. Therefore, future modifications to the embodiments of the present invention will not depart from the technology of the present invention.

[0096]

[0097] [Explanation of the symbol]

[0098] 10: Inversion container

[0099] 100: Anode material crushing device

[0100] 110: Input device

[0101] 121: Primary crushing device

[0102] 122: Secondary crushing device

[0103] 130: Blower

[0104] 140: Filter

[0105] 150: Controller

[0106] 160: Ejector

[0107] 171: First Conduit

[0108] 172: Second Conduit

Claims

1. An inversion device configured to receive an inversion container containing a calcined anode material, invert the inversion container, and feed the anode material into a primary crushing device; The primary grinding device configured to receive the calcined anode material from the inversion device and perform primary grinding; A blower that transfers the primary crushed anode material from the primary crushing device to a filter; A secondary grinding device configured to secondary grind the anode material filtered in the above filter; and A controller configured to control the operation of the above-mentioned inversion device; Includes, An anode material crushing device configured such that the controller receives process variables of the blower, determines whether the pipe is clogged based thereon, and stops the operation of the inversion device if it is determined that the pipe is clogged.

2. In Paragraph 1, The above controller is configured to receive the current value flowing through the blower in real time, and An anode material crushing device characterized by being configured to stop the operation of the inversion device when the current value flowing through the blower deviates from the normal range.

3. In Paragraph 2, An anode material crushing device characterized by the above controller being configured to determine that the piping is clogged when the current value flowing through the blower exceeds 30% of the normal current value.

4. In Paragraph 3, An anode material grinding device characterized by the above controller being configured to determine in real time whether the current value flowing through the blower, which is input in real time, deviates from the normal range.

5. In Paragraph 1, The above primary crushing device includes an opening positioned at the bottom of the inversion device, and An anode material crushing device characterized by the above-described inversion device being configured to invert the inversion container at the top of the opening and to supply the anode material to the primary crushing device through the opening by gravity.

6. In Paragraph 1, The above controller is configured to receive the flow rate of the gas passing through the blower in real time, and An anode material crushing device characterized by being configured to stop the operation of the inversion device when the gas flowing through the blower deviates from the normal range.

7. In Paragraph 1, It further includes an ejector provided between the primary grinding device and the filter, and The outlet of the primary crushing device is connected to the inlet of the ejector by a first conduit, and The outlet of the above-mentioned ejector is connected to one side of the filter by a second conduit, and An anode material crushing device characterized in that the blower is connected to the other side of the filter.

8. In Paragraph 7, An anode material crushing device characterized by the above primary crushing device including two stages of roll mills arranged in the direction of gravity.

9. In Paragraph 8, An anode material crushing device characterized in that the above-mentioned ejector is positioned at the bottom of the above-mentioned primary crushing device in the direction of gravity.

10. In Paragraph 1, An anode material grinding device characterized by the above controller being configured to resume the operation of the inversion device when it is determined that the process variable of the blower has recovered to within a normal range.

11. In Paragraph 10, The above controller is configured to further control the operation of the primary crushing device, and An anode material crushing device characterized by the above controller being configured to simultaneously stop the operation of the primary crushing device when the operation of the inversion device is stopped.

12. In Paragraph 11, An anode material crushing device characterized by the above controller being configured to simultaneously resume the operation of the primary crushing device when the operation of the inversion device is resumed.

13. A primary grinding device configured to receive the calcined anode material and perform primary grinding; An input device configured to input the above-mentioned calcined anode material into the above-mentioned primary crushing device; A blower for transferring the primary crushed anode material from the primary crushing device to a filter; and A controller configured to control the operation of the above-mentioned input device; Includes, An anode material crushing device configured such that the controller receives process variables of the blower and determines that the piping is clogged if the value of the received process variables deviates from the normal range.

14. In Paragraph 13, The above process variable is the current value flowing through the blower, and An anode material crushing device characterized by the above controller being configured to determine that the piping is clogged when the current value flowing through the blower fluctuates beyond a normal range.

15. In Paragraph 13, The above process variable is the flow rate of the fluid passing through the blower, and An anode material crushing device characterized by the above controller being configured to determine that the piping is blocked if the fluid flowing through the blower fluctuates beyond a normal range.

16. In Paragraph 13, An anode material crushing device characterized in that the process of the controller receiving process variables of the blower and determining whether the value of the received process variables deviates from the normal range to determine whether the pipe is clogged is performed in real time.

17. In Paragraph 13, An anode material grinding device characterized by further including a secondary grinding device configured to secondary grind the anode material filtered in the above filter.

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