Raw material mixing device for preparing slurry

Abstract

According to one embodiment of the utility model, the raw material mixing device for preparing the slurry comprises a mixer main body, wherein powder-containing raw materials for forming the slurry are mixed in the mixer main body; a powder input part provided in the mixer main body and having a first passage through which powder is moved to the mixer main body; and a crushing portion including a plurality of mesh members disposed apart from each other in the first channel, and an operation unit coupled to each mesh member and moving the respective mesh member in a preset operation direction, the pulverizing portion is provided to pulverize the powder passing through the first channel when the respective mesh members move in different directions from each other.

Description

Technical Field

[0001] The utility model relates to a raw material mixing device for preparing slurry, and more specifically, to a raw material mixing device for preparing slurry, which can improve the efficiency of the slurry preparation process by crushing powder to be introduced into a mixer body and then introducing the powder into the mixer body in powder form during the slurry preparation process.

[0002] This application claims priority from Korean Patent Application No. 10-2022-0061720, filed on May 20, 2022, the disclosure of which is incorporated herein by reference in its entirety. Background Art

[0003] The electrode manufacturing process of the secondary battery is divided into a slurry manufacturing process, a process of coating the slurry on a current collector, a rolling process, a slitting process, and a drying process.

[0004] A slurry is a mixture of active material, conductive material, binder, and solvent. The active material and conductive material are dry-mixed in powder form. Subsequently, the active material and conductive material are wet-mixed in a solvent containing a dissolved binder to form a slurry.

[0005] Depending on the product type of secondary batteries, various active materials are used, each with different characteristics. Depending on the type of active material, differences arise in the time required to introduce each raw material into a mixing device and the time required to mix the raw materials within the mixing device. Consequently, there is a problem of reduced productivity for active materials that require a longer time to be introduced into the mixing device.

[0006] Figure 1 is a diagram illustrating a conventional raw material mixing apparatus for preparing a slurry.

[0007] Reference Figure 1 The mixture 11 is provided with a plurality of inputs 12, 13 and 15 for introducing each raw material constituting the slurry, and an outlet 17 through which the slurry is discharged. Generally, a mesh 16 is installed in the active material input 15 in order to solve the aggregation of the active material.

[0008] However, when the active material is aggregated into large masses, the aggregated active material does not pass through the mesh 16 , and therefore, an operator manually crushes the aggregated active material, thereby causing a problem of increasing the input time of the active material. Utility Model Content

[0009] Technical issues

[0010] The utility model aims to provide a raw material mixing device for preparing slurry, which can prevent powder introduced into a mixture body in a slurry preparation process from agglomerating.

[0011] Technical Solution

[0012] According to one embodiment of the present invention, a raw material mixing device for preparing a slurry includes: a mixer body, in which powder-containing raw materials for forming a slurry are mixed; a powder input part, which is arranged in the mixer body and has a first channel, and powder is introduced into the mixer body through the first channel; and a crushing part, which includes a plurality of mesh members arranged separately from each other in the first channel and an operating unit coupled to each mesh member and moving each mesh member in a preset operating direction, and the crushing part is configured to crush the powder passing through the first channel when the each mesh member moves in different directions from each other.

[0013] Also, each mesh member may be provided in the powder input portion to be movable in one of a longitudinal direction of the first channel, a width direction of the first channel, and a circumferential direction of the first channel.

[0014] In addition, the multiple mesh members may include a first mesh member having a network structure composed of first openings and a second mesh member having a network structure composed of second openings, the opening area of the second opening being smaller than the first opening area, and the second mesh member may be installed in the first channel so that the powder passing through the first mesh member passes through.

[0015] As one embodiment, the plurality of mesh members may include a first and a second mesh member, wherein the first and second mesh members may each be mounted in the powder input section so as to be movable in opposite directions along the longitudinal direction of the first channel; and the spacing between the first and second mesh members may be adjustable. To this end, the pulverizing section may include: a first guide rail that guides movement of the first mesh member in the longitudinal direction of the first channel and is mounted on an inner surface of the powder input section; a first operating member that provides a driving force to the first mesh member; a second guide rail that guides movement of the second mesh member in the longitudinal direction of the first channel, is provided separately from the first guide rail, and is mounted on an inner surface of the powder input section; and a second operating member that provides a driving force to the second mesh member. Furthermore, the first and second operating members may respectively operate the first and second mesh members so that they move in different directions. In this configuration, the spacing between the first and second mesh members may be adjustable. In addition, when the interval between the first mesh member and the second mesh member is widened or narrowed, the powder passing through the first mesh member and the second mesh member can be sieved.

[0016] As another embodiment, the plurality of mesh members may include first and second mesh members, wherein each of the first and second mesh members may be mounted in the powder input section so as to be reciprocatable in the width direction of the first channel in a first width portion and a second width portion spaced orthogonally from each other in the first channel, and each of the two mesh members may be movable in the width direction of the first channel such that their operating directions are parallel to but orthogonal to each other. To this end, the pulverizing section may include: a first width-direction guide member that guides movement of the first mesh member and is mounted on the inner side surface of the powder input section in the first width portion; a first operating member that provides a driving force to the first mesh member; a second width-direction guide member that guides movement of the second mesh member and is mounted on the inner side surface of the powder input section in the second width portion; and a second operating member that provides a driving force to the second mesh member. Furthermore, the first operating member can operate the first mesh member to reciprocate in the first width portion, and the second operating member can operate the second mesh member to reciprocate in the second width portion. In addition, the first operating member and the second operating member can allow the first mesh member to reciprocate in the first width portion while the second mesh member reciprocates in the second width portion. Therefore, when the first mesh member and the second mesh member move in directions orthogonal to each other, powder passing through the first channel can be sieved.

[0017] In another embodiment, the plurality of mesh members may include a first and a second mesh member, wherein the first and second mesh members may each be installed in the powder input portion so as to be rotatable in directions opposite to each other along the circumferential direction of the first channel, and the two mesh members may be rotated in directions parallel to each other but opposite to each other. To this end, the pulverizing portion may include: a first rotation guide member that guides the rotation of the first mesh member along the circumferential direction of the first channel and is installed on the inner side surface of the powder input portion; a first operating member that applies a rotational force to the first mesh member so that the first mesh member rotates in a preset first rotational direction; a second rotation guide member that guides the rotation of the second mesh member and is installed on the inner side surface of the powder input portion so as to be spaced apart from the first rotation guide member; and a second operating member that applies a rotational force to the second mesh member so that the second mesh member rotates in a second rotational direction opposite to the first rotational direction. In this structure, the first and second operating members can simultaneously rotate the first and second mesh members in directions different from each other, and when the first and second mesh members are rotated in directions opposite to each other, powder passing through the first channel can be sieved.

[0018] As another embodiment, the plurality of mesh members may include: a first mesh member installed in the powder input portion so as to be movable in the longitudinal direction of the first channel; and a pair of second mesh members, each of which is provided separately from the first mesh member in the longitudinal direction of the first channel but is installed in the powder input portion so as to be reciprocally movable in the width direction of the first channel in a first width portion and a second width portion that are orthogonally spaced apart from each other in the first channel. Furthermore, the pair of second mesh members may include a mesh member 2a that reciprocates in the first width portion and a mesh member 2b that reciprocates in the second width portion. In addition, the crushing section may include: a first guide rail, which guides the movement of the first mesh member in the longitudinal direction of the first channel and is installed on the inner surface of the powder input section; a first operating member, which provides a driving force to the first mesh member; a 2a width-direction guide member, which guides the movement of the 2a mesh member in the first width portion of the first channel and is installed on the inner surface of the powder input section; a 2a operating member, which provides a driving force to the 2a mesh member; a 2b width-direction guide member, which guides the movement of the 2b mesh member in the second width portion and is installed on the inner surface of the powder input section; and a 2b operating member, which provides a driving force to the 2b mesh member. In this structure, the first operating member can reciprocate the first mesh member along the first guide rail in the longitudinal direction of the first channel, and the 2a operating member and the 2b operating member can reciprocate the 2a mesh member and the 2b mesh member in directions parallel to each other but orthogonal to each other. In this structure, when the first operating member moves the first mesh member in the longitudinal direction of the first channel, the interval between the first mesh member and the 2a mesh member can be adjusted, and when the distance is adjusted, powder passing through the first channel can be sieved.

[0019] As another embodiment, the plurality of mesh members may include: a first mesh member installed in the powder input portion so as to be movable in the longitudinal direction of the first channel; and a pair of second mesh members, the pair of second mesh members being provided separately from the first mesh member in the longitudinal direction of the first channel but installed in the powder input portion so as to be rotatable along the circumferential direction of the first channel. Furthermore, the pair of second mesh members may include mesh member 2a and mesh member 2b. In addition, the pulverizing section may include: a first guide rail, which guides the movement of the first mesh member in the longitudinal direction of the first channel and is installed on the inner surface of the powder input section; a first operating member, which provides a driving force to the first mesh member; a 2a rotation guide member, which guides the rotation of the 2a mesh member along the circumferential direction of the first channel and is installed on the inner surface of the powder input section; a 2a operating member, which provides a rotational force to the 2a mesh member so that the 2a mesh member rotates in a preset first rotation direction; a 2b rotation guide member, which guides the rotation of the 2b mesh member along the circumferential direction of the first channel, is arranged side by side with the 2a rotation guide member, and is installed on the inner surface of the powder input section; and a 2b operating member, which provides a rotational force to the 2b mesh member so that the 2b mesh member rotates in a second rotation direction opposite to the first rotation direction. In this structure, the first operating member can reciprocate the first mesh member along the first guide rail in the longitudinal direction of the first channel, and the 2a operating member and the 2b operating member can operate the 2a mesh member and the 2b mesh member to rotate in directions parallel to but opposite to each other. In this structure, when the first operating member moves the first mesh member in the longitudinal direction of the first channel, the interval between the first mesh member and the 2a mesh member can be adjusted, and when the distance is adjusted, powder passing through the first channel can be sieved.

[0020] Beneficial effects

[0021] As described above, the raw material mixing device for preparing slurry according to one embodiment of the present invention has the following effects.

[0022] In the slurry preparation process, the aggregated powder can be crushed so that the powder to be introduced into the main body of the mixture is introduced in the form of a powder. Therefore, the powder particles introduced into the slurry preparation process can be homogenized, and the efficiency of the slurry preparation process can be improved by shortening the powder input time.

[0023] In addition, when the powder is introduced into the main body of the mixture in the form of powder without agglomeration, the input speed of the powder and the input amount according to the input time are accurately calculated, thereby improving the formulation accuracy of the raw materials constituting the slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a diagram illustrating a conventional raw material mixing apparatus for preparing a slurry.

[0025] Figure 2 A cross-sectional view schematically shows a pulverizing unit installed in a mixing body according to an embodiment of the present invention.

[0026] Figure 3 1 is a diagram schematically illustrating the configuration and operating state of a pulverizing portion according to a first embodiment of the present invention.

[0027] Figure 4 and Figure 5 2 is a diagram schematically illustrating the configuration and operating state of a pulverizing portion according to a second embodiment of the present invention.

[0028] Figure 6 and Figure 7 1 is a diagram schematically illustrating the configuration and operating state of a pulverizing portion according to a third embodiment of the present invention.

[0029] Figure 8 1 and 2 are diagrams schematically illustrating the configuration and operating state of a pulverizing portion according to a fourth embodiment of the present invention.

[0030] Figure 9 1 and 2 are diagrams schematically illustrating the configuration and operating state of a pulverizing portion according to a fifth embodiment of the present invention. DETAILED DESCRIPTION

[0031] Hereinafter, a raw material mixing device for preparing slurry according to one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0032] In addition, regardless of the reference numerals, the same or corresponding parts are given the same or similar reference numerals, and repeated descriptions thereof will be omitted, and the size and shape of each component shown may be exaggerated or reduced for convenience of explanation.

[0033] Figure 2 A cross-sectional view schematically shows a pulverizing unit installed in a mixing body according to an embodiment of the present invention.

[0034] Reference Figure 2According to one embodiment of the present invention, a raw material mixing device 100 for preparing a slurry includes a mixing body 110 in which a powdered raw material for forming a slurry is mixed. The mixing body 110 may include a mixing space 111 in which the raw materials are accommodated for mixing and a mixing device 119 disposed in the mixing space 111. The mixing device 119 may be composed of various devices (e.g., a rotating body such as a stirring blade) capable of forming a slurry using active material powder.

[0035] Also, the raw material mixing device 100 for preparing slurry includes a powder input portion 120 provided on the mixing body 110 and having a first passage 125 through which powder moves to the mixing device 100 .

[0036] In addition, the raw material mixing device 100 for preparing a slurry includes a crushing section 130, which includes a plurality of first mesh members 131 and a second mesh member 136 arranged separately from each other in the first channel 125, and a first operating unit 132 and a second operating unit 137 coupled to each mesh member and moving each mesh member in a preset operating direction. The crushing section 130 is configured to crush the powder passing through the first channel 125 when each first mesh member 131 and the second mesh member 136 move in different directions from each other.

[0037] In addition, each of the first mesh member 131 and the second mesh member 136 may be provided in the powder input part 120 to be movable in at least one of a longitudinal direction of the first channel 125 , a width direction of the first channel, or a circumferential direction of the first channel.

[0038] In addition, the plurality of first mesh members 131 and second mesh members 136 may include a first mesh member 131 having a network structure composed of first openings and a second mesh member 136 having a network structure composed of second openings, wherein the opening area of the second openings is smaller than the opening area of the first openings, and the second mesh member 136 may be installed in the first channel 125 so that the powder passing through the first mesh member 131 can pass through.

[0039] Figure 3 1 is a diagram schematically illustrating the configuration and operating state of a pulverizing portion according to a first embodiment of the present invention.

[0040] Reference Figure 2 and Figure 3The raw material mixing device 100 for preparing slurry according to the first embodiment includes a main mixing unit 110, a powder input unit 120, and a pulverizing unit 130. The main mixing unit 100 for preparing slurry is a device for mixing the raw materials that constitute the slurry. As described above, the slurry is a mixture of an active material, a conductive material, a binder, and a solvent. The active material and the conductive material are dry-mixed in powder form in the main mixing unit 110.

[0041] The mixing body 110 is provided with a plurality of inputs 112, 113, and 120 for introducing various raw materials constituting the slurry, and an outlet 117 through which the slurry is discharged. In this embodiment, for ease of explanation, the input part for introducing powder is referred to as the powder input part 120. In the slurry preparation process, the active material or the conductive material may correspond to the powder.

[0042] The powder input part 120 is coupled to the mixing body 110. Powder is introduced into the powder input part 120. A first passage 125 connected to the mixing body 110 is provided in the powder input part 120. Here, the first passage 125 refers to a passage through which powder moves to the mixing body 110.

[0043] The pulverizing unit 130 is installed in the first passage 125 of the powder input unit 120. The pulverizing unit 130 pulverizes the powder passing through the first passage 125 into powder form. The pulverizing unit 130 includes a first operating unit 132, a second operating unit 137, and at least two first and second mesh members 131 and 136.

[0044] In this embodiment, for convenience of description, at least two first mesh members 131 and second mesh members 136 are individually referred to as “first mesh member 131 and second mesh member 136 ”.

[0045] The first and second mesh members 131 and 136 have a network structure and operate to sieve powder passing through the first channel 125. The first and second mesh members 131 and 136 are installed in the powder input part 120 to be movable in the first channel 125 in preset operation directions, respectively.

[0046] The first mesh member 131 and the second mesh member 136 are disposed side by side and spaced apart from each other along the longitudinal direction L of the first channel 125. The first mesh member 131 is located at an inlet portion in a powder input direction.

[0047] Then, the second mesh member 136 is located at a portion passing the powder that passed through the first mesh member 131. The second mesh member 136 may have a network structure having openings equal to or smaller than the opening size of the first mesh member 131.

[0048] The first operating unit 132 and the second operating unit 137 are devices coupled to the first mesh members 131 and the second mesh members 136 to move the mesh members in a preset operating direction.

[0049] In this embodiment, for convenience of explanation, the operating unit coupled to the first net-shaped member 131 is referred to as a “first operating unit 132 .” Then, the operating unit coupled to the second net-shaped member 136 is referred to as a “second operating unit 137 .”

[0050] The first operating unit 132 includes a first guide rail 133 and a first operating member 134. The first guide rail 133 is installed on the inner side surface of the powder input portion 120 in the longitudinal direction L of the first channel 125. The first guide rail 133 guides movement of the first net member 131.

[0051] The first operating member 134 is coupled to the first net member 131. The first operating member 134 provides a driving force to the first net member 131. By the first operating member 134, the first net member 131 reciprocates up and down along the first guide rail 133 in the longitudinal direction L of the first channel 125.

[0052] The second operating unit 137 includes a second guide rail 138 and a second operating member 139. The second guide rail 138 is installed on the inner side surface of the powder input portion 120 in the longitudinal direction L of the first channel 125. The second guide rail 138 guides the movement of the second net member 136.

[0053] The second operating member 139 is coupled to the second net member 136. The second operating member 139 provides a driving force to the second net member 136. By the second operating member 139, the second net member 136 reciprocates up and down along the second guide rail 138 in the longitudinal direction L of the first channel 125.

[0054] In this embodiment, the first and second operating members 134 and 139 are preferably operated simultaneously. However, the first and second operating members 134 and 139 may operate the first and second net members 131 and 136 to move in directions different from each other.

[0055] Meanwhile, in this example, the operating member may be composed of a driving portion such as a motor or a vibrator.

[0056] When the first and second operating members 134 and 139 move the first and second mesh members 131 and 136 in different directions from each other, and thus the interval between the first and second mesh members 131 and 136 widens and narrows, powder passing through the first and second mesh members 131 and 136 may be sieved.

[0057] As a result, when the pulverizing part 130 pulverizes aggregated particles of the powder, the present invention can prevent the powder input part 120 from being clogged by the aggregated powder and introduce the powder into the mixture body 110 at a preset input speed and input amount.

[0058] Figure 4 and Figure 5 2 is a diagram schematically illustrating the configuration and operating state of a pulverizing portion according to a second embodiment of the present invention.

[0059] Reference Figure 4 and Figure 5 According to the second embodiment, a raw material mixing device 100a for preparing slurry includes a mixing unit 110, a powder input unit 120, and a pulverizing unit 130a. The raw material mixing device 100a for preparing slurry according to this embodiment differs from the pulverizing unit 130 of the first embodiment in the structure and operation of the pulverizing unit 130a. In this embodiment, for ease of explanation, the description of the mixing unit 110 and the powder input unit 120, which have the same structure as in the first embodiment, will be omitted.

[0060] The pulverizing unit 130a includes a first mesh member 131a, a first operating unit 132a, a second mesh member 136a, and a second operating unit 137a. The first mesh member 131a and the second mesh member 136a are arranged side by side and spaced apart from each other along the longitudinal direction L of the first passage 125. The first mesh member 131a and the second mesh member 136a are installed in the powder input unit 120 so as to be movable along the width directions of the first passage 125 that are orthogonal to each other.

[0061] The first mesh member 131a is installed to reciprocate in a preset first width portion in a first operating direction W1 parallel to the width direction of the first channel 125. The first mesh member 131a is located at an inlet portion in a powder input direction. The first mesh member 131a is coupled to the first operating unit 132a.

[0062] The first operating unit 132a includes a first width direction guide member 133a and a first operating member 134a. The first width direction guide member 133a is installed on the inner side surface of the powder input part 120 in the width direction of the first channel 125. The first width direction guide member 133a guides movement of the first net member 131a in the first operating direction W1.

[0063] The first operating member 134a is coupled to the first net member 131a. The first operating member 134a provides a driving force to the first net member 131a. By the first operating member 134a, the first net member 131a reciprocates along the first operating direction W1 following the first width direction guide member 133a.

[0064] The second mesh member 136a is installed to be reciprocally movable in a predetermined second width portion in a second operating direction W2 orthogonal to the first operating direction W1. The second mesh member 136a is located at a portion where the powder passing through the first mesh member 131a passes. The second mesh member 136a is coupled to the second operating unit 137a.

[0065] The second operating unit 137a includes a second width direction guide member 138a and a second operating member 139a The second width direction guide member 138a is installed on the inner side surface of the powder input portion 120 in the width direction of the first passage 125 .

[0066] The second width direction guide member 138a guides the second net member 136a to move in the second operating direction W2. The second operating direction W2 is a direction parallel to the width direction of the first passage 125 but orthogonal to the first operating direction W1.

[0067] The second operating member 139a is coupled to the second net member 136a. The second operating member 139a provides a driving force to the second net member 136a. By the second operating member 139a, the second net member 136a reciprocates along the second operating direction W2 following the second width direction guide member 138a.

[0068] Preferably, the first operating member 134a and the second operating member 139a are operated simultaneously.The first operating member 134a and the second operating member may operate the first net member 131a and the second net member 136a to move in directions different from each other.

[0069] When the first and second operating members 134a and 139a are operated, powder passing through a space between the first and second mesh members 131a and 136a may be pulverized while the first and second mesh members 131a and 136a move in directions orthogonal to each other.

[0070] By crushing the aggregated powder, the powder introduced into the mixture body 110 in the slurry preparation process is introduced in the form of powder, thereby homogenizing the powder particles used in the slurry preparation process and shortening the powder input time. The utility model can improve the slurry preparation process.

[0071] When the powder is not aggregated and introduced into the mixture body 110 in the form of powder, and the input amount is accurately calculated according to the input speed and input time of the powder, thereby improving the formula accuracy of the raw materials constituting the slurry, the utility model can improve the efficiency of the slurry preparation process.

[0072] Figure 6 and Figure 71 is a diagram schematically illustrating the configuration and operating state of a pulverizing portion according to a third embodiment of the present invention.

[0073] Reference Figure 6 and Figure 7 According to the second embodiment, a raw material mixing device 100b for preparing slurry includes a mixing unit 110, a powder input unit 120, and a pulverizing unit 130b. The raw material mixing device 100b for preparing slurry according to this embodiment differs from the pulverizing unit 130 of the first embodiment in the structure and operation of the pulverizing unit 130b. In this embodiment, for ease of explanation, the description of the mixing unit 110 and the powder input unit 120, which have the same structure as in the first embodiment, will be omitted.

[0074] The pulverizing unit 130b includes a first mesh member 131b, a second mesh member 136b, a first operating unit 132b, and a second operating unit 137b. The first mesh member 131b and the second mesh member 136b are arranged side by side and spaced apart from each other along the longitudinal direction L of the first passage 125. The first mesh member 131b and the second mesh member 136b are each installed in the powder input unit 120 so as to be rotatable in directions relative to each other in the first passage 125.

[0075] The first net member 131b is rotatably installed in the powder input portion 120 in a first rotation direction R1 along a circumferential direction of the first passage 125. The first net member 131b is coupled to a first operating unit 132b.

[0076] The first operating unit 132b includes a first rotation guide member 133b and a first operating member 134b. The first rotation guide member 133b is installed on the inner side surface of the powder input part 120 in the circumferential direction of the first channel 125. The first rotation guide member 133b guides the movement of the first net-shaped member 131b.

[0077] The first operating member 134b is coupled to the first net member 131b. The first operating member 134b provides a driving force to the first net member 131b. The first net member 131b receives the driving force from the first operating member 134b and rotates in the first rotation direction R1 following the first rotation guide member 133b.

[0078] The second mesh member 136b is spaced apart from the first mesh member 131b and is installed in the powder input portion 120 so as to be rotatable in a second rotation direction R2 along the circumferential direction of the first channel 125. The second mesh member 136b is coupled to the second operating unit 137b. The second rotation direction R2 is a direction opposite to the first rotation direction R1.

[0079] The second operating unit 137b includes a second rotation guide member 138b and a second operating member 139b. The second rotation guide member 138b is installed on the inner side surface of the powder input part 120 in the circumferential direction of the first channel 125. The second rotation guide member 138b guides the movement of the second net-shaped member 136b.

[0080] The second operating member 139b is coupled to the second net member 136b. The second operating member 139b provides a driving force to the second net member 136b. The second net member 136b receives the driving force from the second operating member 139b to rotate in the second rotation direction R2 following the second rotation guide member 138b.

[0081] When the first and second operating members 134b and 139b are operated, powder passing through a space between the first and second mesh members 131b and 136b may be pulverized while the first and second mesh members 131b and 136b rotate in opposite directions along the circumferential direction of the first channel 125 .

[0082] Figure 8 1 and 2 are diagrams schematically illustrating the configuration and operating state of a pulverizing portion according to a fourth embodiment of the present invention.

[0083] Reference Figure 8 According to a fourth embodiment, a raw material mixing device 100c for preparing slurry includes a mixing unit 110, a powder input unit 120, and a pulverizing unit 130c. The raw material mixing device 100c for preparing slurry according to this embodiment differs from the pulverizing unit 130 of the first embodiment in the structure and operation of the pulverizing unit 130c. In this embodiment, for ease of explanation, the description of the mixing unit 110 and the powder input unit 120, which have the same structure as in the first embodiment, will be omitted.

[0084] like Figure 8 As shown, the pulverizing portion 130c includes a first mesh member 131c, a 2a mesh member 136c-1, a 2b mesh member 136c-2, a first operating unit 132c, a 2a operating unit 137c-1, and a 2b operating unit 137c-2.

[0085] The first mesh member 131 c , the 2a mesh member 136 c - 1 , and the 2b mesh member 136 c - 2 are sequentially and separately arranged side by side in the first passage 125 along the input direction of the powder.

[0086] The first operating unit 132c is coupled to the first mesh member 131c. The first operating unit 132c includes a first guide rail 133c and a first operating member 134c. The first guide rail 133c is installed on the inner side surface of the powder input portion 120 in the longitudinal direction L of the first channel 125. The first guide rail 133c guides the movement of the first mesh member 131c.

[0087] The first operating member 134c is coupled to the first net member 131c. The first operating member 134c provides a driving force to the first net member 131c. When the first operating member 134c is operated, the first net member 131c reciprocates up and down along the longitudinal direction L of the first channel 125 following the first guide rail 133c.

[0088] The 2a mesh member 136c - 1 and the 2b mesh member 136c - 2 are disposed side by side and spaced apart from each other along the longitudinal direction L of the first channel 125 , but are installed in the powder input portion 120 to move along width directions orthogonal to each other within the first channel 125 .

[0089] The 2a mesh member 136c-1 is installed to be reciprocally movable in a predetermined first width portion in a first operation direction W1 parallel to the width direction of the first channel 125. The 2a mesh member 136c-1 is located at the inlet portion of the powder input direction. The 2a mesh member 136c-1 is coupled to the 2a operation unit 137c-1.

[0090] The 2a operating unit 137c-1 includes a 2a width direction guide member 138c-1 and a 2a operating member 139c-1. The 2a width direction guide member 138c-1 is installed on the inner side surface of the powder input portion 120 in the width direction of the first channel 125. The 2a width direction guide member 138c-1 guides the movement of the 2a mesh member 136c-1 in the first operating direction W1.

[0091] The 2a operating member 139c-1 is coupled to the 2a net-shaped member 136c-1. The 2a operating member 139c-1 provides a driving force to the 2a net-shaped member 136c-1. Through the 2a operating member 139c-1, the 2a net-shaped member 136c-1 reciprocates along the first operating direction W1 following the 2a width direction guide member 138c-1.

[0092] The 2b mesh member 136c-2 is mounted so as to be reciprocally movable within a predetermined second width portion in a second operating direction W2 orthogonal to the first operating direction W1. The 2b mesh member 136c-2 is located at a portion through which powder passing through the 2a mesh member 136c-1 passes. The 2b mesh member 136c-2 is coupled to the 2b operating unit 137c-2.

[0093] The 2b operating unit 137c - 2 includes a 2b width direction guide member 138c - 2 and a 2b operating member 139c - 2 . The 2b width direction guide member 138c - 2 is installed on the inner side surface of the powder input portion 120 in the width direction of the first passage 125 .

[0094] The 2b width direction guide member 138c-2 guides the movement of the 2b net member 136c-2 in the second operating direction W2. The second operating direction W2 is a direction parallel to the width direction of the first passage 125 but orthogonal to the first operating direction W1.

[0095] The 2b operating member 139c-2 is coupled to the 2b net member 136c-2. The 2b operating member 139c-2 provides a driving force to the 2b net member 136c-2. The 2b operating member 139c-2 reciprocates along the second operating direction W2 following the 2b width direction guide member 138c-2.

[0096] Preferably, the 2a operating member 139c-1 and the 2b operating member 139c-2 are operated simultaneously. The 2a operating member 139c-1 and the 2b operating member 139c-2 may operate the 2a net member 136c-1 and the 2b net member 136c-2 to move in directions different from each other.

[0097] When the 2a operating member 139c-1 and the 2b operating member 139c-2 are operated, powder passing through the space between the 2a mesh member 136c-1 and the 2b mesh member 136c-2 may be pulverized while the 2a mesh member 136c-1 and the 2b mesh member 136c-2 are moved in directions orthogonal to each other.

[0098] When the first operating member 134c, the 2a operating member 139c-1 and the 2b operating member 139c-2 are operated simultaneously, the powder passing through the first channel 125 can be sieved when the interval between the first mesh member 131c and the 2a mesh member 136c-1 narrows and then widens, and when the 2a mesh member 136c-1 and the 2b mesh member 136c-2 are parallel to each other but operated so that the operating directions are orthogonal to each other, the powder passing through the first channel 125 can be crushed.

[0099] Figure 9 1 and 2 are diagrams schematically illustrating the configuration and operating state of a pulverizing portion according to a fifth embodiment of the present invention.

[0100] Reference Figure 9According to the fifth embodiment, a raw material mixing device 100d for preparing slurry includes a mixing unit 110, a powder input unit 120, and a pulverizing unit 130d. The raw material mixing device 100d for preparing slurry according to this embodiment differs from the pulverizing unit 130 of the first embodiment in the structure and operation of the pulverizing unit 130d. In this embodiment, for ease of explanation, the description of the mixing unit 110 and the powder input unit 120, which have the same structure as in the first embodiment, will be omitted.

[0101] Reference Figure 9 The pulverizing portion 130d includes a first mesh member 131d, a 2a mesh member 136d-1, a 2b mesh member 136d-2, a first operating unit 132d, a 2a operating unit 137d-1, and a 2b operating unit 137d-2.

[0102] The first mesh member 131 d , the 2a mesh member 136 d - 1 , and the 2b mesh member 136 d - 2 are disposed in the first passage 125 , spaced apart from each other side by side along the input direction of the powder.

[0103] The first operating unit 132d is coupled to the first mesh member 131d. The first operating unit 132d includes a first guide rail 133d and a first operating member 134d. The first guide rail 133d is installed on the inner side surface of the powder input portion 120 in the longitudinal direction L of the first channel 125. The first guide rail 133d guides the movement of the first mesh member 131d.

[0104] The first operating member 134d is coupled to the first net member 131d. The first operating member 134d provides a driving force to the first net member 131d. The first net member 131d reciprocates up and down along the longitudinal direction L of the first channel 125 following the first guide rail 133d by the first operating member 134d.

[0105] The 2a mesh member 136d - 1 and the 2b mesh member 136d - 2 are disposed apart from each other along the longitudinal direction L of the first passage 125 , but are installed in the powder input portion 120 so as to be rotationally movable in directions opposite to each other along the width direction of the first passage 125 .

[0106] The 2a net member 136d-1 is installed in the powder input part 120 to be rotatably movable in a first rotation direction R1 (eg, clockwise) along a circumferential direction of the first channel 125. The 2a net member 136d-1 is coupled to a 2a operation unit 137d-1.

[0107] The 2a operating unit 137d-1 includes a 2a rotation guide member 138d-1 and a 2a operating member 139d-1. The 2a rotation guide member 138d-1 is installed on the inner side surface of the powder input portion 120 in the circumferential direction of the first channel 125. The 2a rotation guide member 138d-1 guides movement of the 2a net-like member 136d-1.

[0108] The 2a operating member 139d-1 is coupled to the 2a net member 136d-1. The 2a operating member 139d-1 provides driving force to the 2a net member 136d-1. The 2a net member 136d-1 receives the driving force from the 2a operating member 139d-1 and rotates clockwise along the 2a rotation guide member 138d-1.

[0109] The 2b mesh member 136d-2 is spaced apart from the 2a mesh member 136d-1 and is installed in the powder input portion 120 so as to be rotatable in a second rotation direction R2 (e.g., counterclockwise) along the circumference of the first channel 125. The 2b mesh member 136d-2 is coupled to the 2b operating unit 137d-2. The second rotation direction R2 is opposite to the first rotation direction R1.

[0110] The 2b operating unit 137d-2 includes a 2b rotation guide member 138d-2 and a 2b operating member 139d-2. The 2b rotation guide member 138d-2 is installed on the inner side surface of the powder input portion 120 in the circumferential direction of the first channel 125. The 2b rotation guide member 138d-2 guides the movement of the 2b net-like member 136d-2.

[0111] The 2b operating member 139d-2 is coupled to the 2b net member 136d-2. The 2b operating member 139d-2 provides driving force to the 2b net member 136d-2. The 2b net member 136d-2 receives the driving force from the 2b operating member 139d-2 and rotates counterclockwise along the 2b rotation guide member 138d-2.

[0112] When the 2a operating member 139d-1 and the 2b operating member 139d-2 are operated, powder passing through the space between the 2a mesh member 136d-1 and the 2b mesh member 136d-2 can be crushed while the 2a mesh member 136d-1 and the 2b mesh member 136d-2 rotate in directions opposite to each other along the circumferential direction of the first channel 125.

[0113] When the first operating member 134d, the 2a operating member 139d-1 and the 2b operating member 139d-2 are operated simultaneously, the powder passing through the first channel 125 can be sieved when the interval between the 2a mesh member 131d-1 and the 2b mesh member 136d-2 is narrowed and then widened, and the powder passing through the first channel 125 can be crushed when the pair of second mesh members 136d rotate in directions parallel to but opposite to each other.

[0114] For the purpose of illustration, an embodiment of the present invention as described above has been disclosed, and those skilled in the art with ordinary knowledge of the present invention will be able to make various modifications, changes and additions within the spirit and scope of the present invention, and these modifications, changes and additions should be deemed to fall within the scope of the appended claims.

[0115] Industrial Applicability

[0116] According to an embodiment of the present invention, a raw material mixing device for preparing slurry can homogenize powder particles introduced into the slurry preparation process and improve the efficiency of the slurry preparation process by shortening the powder input time.

Claims

1. A raw material mixing device for preparing slurry, characterized in that: include: a mixer body in which powder-containing raw materials for forming a slurry are mixed; a powder input portion disposed in the mixer body and having a first passage through which powder is introduced into the mixer body; as well as A pulverizing portion includes a plurality of mesh members arranged separately from each other in the first channel and an operating unit coupled to each mesh member and moving each mesh member in a preset operating direction, and the pulverizing portion is configured to pulverize powder passing through the first channel when the each mesh member moves in directions different from each other.

2. The raw material mixing device for preparing slurry according to claim 1, wherein: Each mesh member is provided in the powder input portion to be movable in one of a longitudinal direction of the first channel, a width direction of the first channel, and a circumferential direction of the first channel.

3. The raw material mixing device for preparing slurry according to claim 1, wherein: The plurality of mesh members include a first mesh member and a second mesh member, wherein: the first mesh member and the second mesh member are each installed in the powder input portion to move in directions opposite to each other along the longitudinal direction of the first channel; and The interval between the first mesh member and the second mesh member is adjusted.

4. The raw material mixing device for preparing slurry according to claim 3, wherein: The pulverizing portion includes: a first guide rail that guides movement of the first mesh member in the longitudinal direction of the first channel and is installed on an inner side surface of the powder input portion; a first operating member that provides a driving force to the first net-like member; a second guide rail that guides movement of the second mesh member in the longitudinal direction of the first channel, is provided separately from the first guide rail, and is mounted on an inner side surface of the powder input portion; and a second operating member that provides a driving force to the second net-shaped member; wherein, The first operating member and the second operating member respectively operate the first net member and the second net member so that they move in directions different from each other.

5. The raw material mixing device for preparing slurry according to claim 1, wherein: The plurality of mesh members include a first mesh member and a second mesh member, wherein: The first mesh member and the second mesh member are each installed in the powder input portion to be reciprocally movable in a width direction of the first channel in a first width portion and a second width portion spaced orthogonally apart from each other in the first channel, and The first mesh member and the second mesh member are each moved in the width direction of the first channel so that they are parallel to each other but orthogonal to each other.

6. The raw material mixing device for preparing slurry according to claim 5, wherein: The pulverizing portion includes: a first width direction guide member that guides movement of the first mesh member and is installed on an inner side surface of the powder input portion in the first width portion; a first operating member that provides a driving force to the first net-like member; a second width direction guide member that guides movement of the second mesh member and is mounted on the inner side surface of the powder input portion in the second width portion; a second operating member that provides a driving force to the second net-shaped member; wherein, The first operating member operates the first net-like member to reciprocate in the first width portion, and the second operating member operates the second net-like member to reciprocate in the second width portion.

7. The raw material mixing device for preparing slurry according to claim 1, wherein: The plurality of mesh members include a first mesh member and a second mesh member, wherein: The first mesh member and the second mesh member are each installed in the powder input portion to be rotatable in directions opposite to each other along the circumferential direction of the first channel, and The first mesh member and the second mesh member rotate in directions parallel to but opposite to each other.

8. The raw material mixing device for preparing slurry according to claim 7, wherein the pulverizing section comprises: a first rotation guide member that guides the rotation of the first mesh member along the circumferential direction of the first channel and is installed on an inner side surface of the powder input portion; a first operating member that provides a rotational force to the first net-like member so that the first net-like member rotates in a preset first rotational direction; a second rotation guide member that guides rotation of the second mesh member and is mounted on the inner side surface of the powder input portion to be spaced apart from and arranged side by side with the first rotation guide member; as well as A second operating member provides a rotational force to the second net-like member so that the second net-like member rotates in a second rotational direction opposite to the first rotational direction.

9. The raw material mixing device for preparing slurry according to claim 1, wherein: The plurality of mesh members include: a first mesh member installed in the powder input portion to be movable in a longitudinal direction of the first channel; and A pair of second mesh members, which are arranged separately from the first mesh member in the longitudinal direction of the first channel, but are each installed in the powder input part to be reciprocatingly movable in the width direction of the first channel in a first width portion and a second width portion that are orthogonally separated from each other in the first channel.

10. The raw material mixing device for preparing slurry according to claim 9, wherein: The pair of second mesh members includes a mesh member 2a that reciprocates in the first width portion and a mesh member 2b that reciprocates in the second width portion, and The pulverizing portion includes: a first guide rail that guides movement of the first mesh member in the longitudinal direction of the first channel and is installed on the inner side surface of the powder input portion; a first operating member that provides a driving force to the first net-like member; 2a width direction guide member, the 2a width direction guide member guiding the movement of the 2a mesh member in the first width portion of the first channel and installed on the inner side surface of the powder input portion; 2a operating member, the 2a operating member provides a driving force to the 2a mesh member; a 2b width direction guide member that guides movement of the 2b mesh member in the second width portion and is installed on the inner side surface of the powder input portion; and 2b operating member that provides driving force to the 2b net-like member.

11. The raw material mixing device for preparing slurry according to claim 10, wherein: the first operating member reciprocating the first net member along the first guide rail in the longitudinal direction of the first channel, and The 2a operating member and the 2b operating member reciprocate the 2a mesh member and the 2b mesh member in directions parallel to but orthogonal to each other.

12. The raw material mixing device for preparing slurry according to claim 1, wherein: The plurality of mesh members include: a first mesh member installed in the powder input portion to be movable in a longitudinal direction of the first channel; and a pair of second mesh members which are provided separately from the first mesh member in the longitudinal direction of the first channel but are installed in the powder input portion to be rotatable along the circumferential direction of the first channel.

13. The raw material mixing device for preparing slurry according to claim 12, wherein: The pair of second mesh members includes a mesh member 2a and a mesh member 2b, and The pulverizing portion includes: a first guide rail that guides movement of the first mesh member in the longitudinal direction of the first channel and is installed on an inner side surface of the powder input portion; a first operating member that provides a driving force to the first net-like member; 2a a rotation guide member, the rotation guide member 2a guiding the rotation of the mesh member 2a along the circumferential direction of the first channel and installed on the inner side surface of the powder input portion; 2a operating member, the 2a operating member provides a rotational force to the 2a mesh member, so that the 2a mesh member rotates in a preset first rotation direction; a 2b rotation guide member, the 2b rotation guide member guiding the rotation of the 2b mesh member along the circumferential direction of the first channel, being provided side by side and spaced apart from the 2a rotation guide member, and being mounted on the inner side surface of the powder input portion; and A 2b operating member provides a rotational force to the 2b net-like member so that the 2b net-like member rotates in a second rotational direction opposite to the first rotational direction.

14. The raw material mixing device for preparing slurry according to claim 13, wherein: the first operating member reciprocating the first net member along the first guide rail in the longitudinal direction of the first channel, and The 2a operating member and the 2b operating member operate the 2a net-like member and the 2b net-like member to rotate in directions parallel to but opposite to each other.

15. The raw material mixing device for preparing slurry according to claim 1, wherein: The plurality of mesh members include a first mesh member having a network structure consisting of first openings and a second mesh member having a network structure consisting of second openings, wherein the opening area of the second openings is smaller than the opening area of the first openings; as well as The second mesh member is installed in the first channel so that the powder passing through the first mesh member passes therethrough.

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