KR-20260063272-A - HOPPER APPARATUS WITH COOLING FUNCTION

KR20260063272AKR 20260063272 AKR20260063272 AKR 20260063272AKR-20260063272-A

Abstract

A hopper device equipped with a cooling function capable of cooling high-temperature powder inside a hopper is provided. The hopper device may include: i) a hopper into which powder is introduced from the outside upward, a space for accommodating powder is formed inside, and powder is discharged downward; and ii) a cooling unit, at least a portion thereof disposed inside the hopper to cool the powder. The cooling unit may include a plurality of cooling tubes having an elliptical cross-section through which cooling water flows. The cooling tubes may be disposed along a path through which powder is introduced into the hopper so as to come into contact with the powder.

Inventors

임동현
양건모
김종엽
유연지
반영우

Assignees

(주)포스코퓨처엠

Dates

Publication Date: 20260507
Application Date: 20241030

Claims (19)

A hopper in which powder is introduced upward from the outside, a space is formed inside for accommodating the powder, and the powder is discharged downward; and A cooling unit, at least a portion of which is disposed within the hopper to cool the powder. Includes, The above cooling unit includes a plurality of cooling tubes having an elliptical cross-section through which cooling water flows, and The above cooling tube is a hopper device equipped with a cooling function, which is positioned on the path through which the powder flows into the hopper so as to come into contact with the powder.
In paragraph 1, A hopper device equipped with a cooling function, wherein some of the plurality of cooling tubes and others are arranged within the hopper such that they have different inclinations relative to each other with respect to a virtual horizontal axis when viewed from the side.
In paragraph 1, The above cooling tube is, A hopper device equipped with a cooling function that extends in a curved manner along the inner surface of the upper part of the hopper from a first point on the inner side of the upper part of the hopper to a second point on the inner side of the upper part of the hopper.
In paragraph 3, A plurality of the above cooling tubes, A hopper device equipped with a cooling function, positioned in a portion of the inner circumferential area of the upper part of the hopper.
In paragraph 3, The above cooling tube is A base tube extending in a curved manner along the inner surface of the upper part of the hopper from the second point to the first point; A middle tube disposed above the base tube to communicate with the base tube, and extending in a curved manner along the inner surface of the upper part of the hopper from the first point to the second point; and An upper tube positioned above the middle tube to communicate with the middle tube, and extending in a curved manner along the inner surface of the upper part of the hopper from the second point to the first point. A hopper device equipped with a cooling function including
In paragraph 5, The base tube and the upper tube are positioned to be inclined to one side with respect to a virtual horizontal axis when viewed from the side, and The above middle tube is a hopper device equipped with a cooling function that is positioned to be inclined toward the other side opposite to the one side with respect to a virtual horizontal axis when viewed from the side.
In paragraph 6, The base tube and the upper tube are arranged to be inclined 60 to 70 degrees to one side with respect to a virtual horizontal axis when viewed from the side, and The above middle tube is a hopper device equipped with a cooling function that is positioned to be tilted 60 to 70 degrees toward the other side opposite to the one side with respect to a virtual horizontal axis when viewed from the side.
In paragraph 5, When the base tube, the middle tube, and the upper tube each have a height of 17 mm to 19 mm and a width of 6 mm to 8 mm, The middle tube is positioned such that the center of the middle tube is located 18mm to 22mm above the center of the base tube, and The upper tube is a hopper device equipped with a cooling function, positioned such that the center of the upper tube is located 18 mm to 22 mm above the center of the middle tube.
In paragraph 6, The above base tube, the above middle tube, and the above upper tube are, A hopper device equipped with a cooling function, wherein a plurality of units are arranged in parallel and spaced apart by a predetermined distance from the first point to the second point.
In Paragraph 9, When the base tube, the middle tube, and the upper tube each have a height of 17 mm to 19 mm and a width of 6 mm to 8 mm, A plurality of the above base tubes and a plurality of the above upper tubes are each spaced apart from each other by a distance of 11 mm to 15 mm with respect to a virtual inclined axis tilted toward one side, and A plurality of the above-mentioned middle tubes are spaced apart from each other by a distance of 11 mm to 15 mm based on a virtual inclined axis tilted toward the other side, and are a hopper device equipped with a cooling function.
In paragraph 5, The above cooling tube is An inlet tube connecting one end of the plurality of base tubes above to communicate with each other, through which cooling water flows in from the outside; and An outlet tube connecting one end of the plurality of upper tubes to communicate with each other, through which cooling water that has exchanged heat with the powder is discharged. A hopper device equipped with a cooling function that further includes
In Paragraph 11, The above cooling unit is, It further includes a tube assembly in which a plurality of the above-mentioned cooling tubes form a plurality of groups, and The above tube assembly is First cooling tube; A second cooling tube disposed above the first cooling tube; and A third cooling tube positioned above the second cooling tube. Includes, A hopper device equipped with a cooling function in which the first cooling tube, the second cooling tube, and the third cooling tube are connected to communicate with each other.
In Paragraph 12, The above cooling unit is An inlet pipe providing a path for cooling water to flow into the inlet tube from the outside; and A discharge pipe providing a path for coolant to be discharged to the outside from the above outlet tube. Includes more, The above inlet pipe is, The first inlet tube, the second inlet tube, and the third inlet tube of each of the first cooling tube, the second cooling tube, and the third cooling tube are all connected to communicate with each of them, and The above discharge pipe is, A hopper device equipped with a cooling function connected to communicate with the first outlet tube, the second outlet tube, and the third outlet tube of each of the first cooling tube, the second cooling tube, and the third cooling tube.
In Paragraph 12, The above hopper is Side section; and An inclined portion extending downward from the above-mentioned side portion, converging toward the center. Includes, The second cooling tube and the third cooling tube are located on the inner side of the side portion, and The first cooling tube above is a hopper device equipped with a cooling function located on the inner side of the upper part of the inclined section.
In Paragraph 12, The base tube of the second cooling tube and the upper tube of the first cooling tube are arranged to be inclined in opposite directions relative to a virtual horizontal axis when viewed from the side, and A hopper device equipped with a cooling function, wherein the base tube of the third cooling tube and the upper tube of the second cooling tube are arranged to be inclined in opposite directions relative to a virtual horizontal axis when viewed from the side.
In Paragraph 13, It further includes a cover that covers the upper part of the above-mentioned hopper, and The above inlet pipe and the above discharge pipe are a hopper device equipped with a cooling function that extends upward to penetrate the cover.
In paragraph 3, It further includes a cover that covers the upper part of the above-mentioned hopper, and The above cover has a plurality of input ports formed therein through which the powder flows from the outside into the hopper, and A hopper device equipped with a cooling function, wherein a plurality of the above-mentioned inlets are formed to be located on the upper side of the cooling tube.
In Paragraph 17, The above input port is A first inlet formed in the cover so as to be located at the first point above; A second inlet formed in the cover to be located on the second point above; and A third input opening formed in the cover to be located at a third point between the first point and the second point. A hopper device equipped with a cooling function including
In Paragraph 13, It further includes a cooling water supply unit that supplies cooling water to the above cooling unit, and The above cooling water supply unit is A chiller that cools the cooling water; A first cooling water channel providing a path for cooling water to flow from the chiller to the inlet pipe; A second cooling water channel providing a path for cooling water that has heat-exchanged with the powder to flow from the discharge pipe to the chiller; and A pump disposed in the first cooling water channel to pressurize the flow of cooling water from the chiller to the inlet pipe. A hopper device equipped with a cooling function including

Description

Hopper apparatus with cooling function The present invention relates to a hopper device equipped with a cooling function. More specifically, the present invention relates to a hopper device equipped with a cooling function capable of cooling high-temperature powder inside the hopper. Electrode powder, a raw material for secondary batteries, is manufactured by applying high-temperature heat to raw materials inside a kiln. The powder, heated to high temperatures inside the kiln, flows into the hopper via a reverser and a roll mill. In a hopper, high-temperature powder flows in from the top, forms an internal space to contain the powder, and is discharged from the bottom. However, external devices connected to the hopper, such as sensors, seals, double dampers, and rotary valves, are frequently damaged by the high-temperature powder discharged from the hopper. In the prior art, there are cooling means such as attaching a separate cooling plate to the outer surface of a hopper or installing pipes through which cooling water flows inside the hopper. However, these general cooling means have the problem that the high-temperature powder is not effectively cooled because they indirectly transfer cold air to the high-temperature powder flowing into the hopper or are positioned in a path where the cooling means cannot come into direct contact with the high-temperature powder. In addition, conventional cooling means have the problem that the high-temperature powder flowing into the hopper falls at a relatively high speed, reducing the contact time with the cooling means and the contact area with the cooling means. Therefore, there is a need for a device that can increase the time and area of contact between the high-temperature powder flowing into the hopper and the cooling means. FIG. 1 is a diagram showing the schematic overall configuration of a hopper device equipped with a cooling function according to one embodiment of the present invention. Figure 2 is a drawing showing the interior of the hopper with the cover of the hopper device of Figure 1 removed. Figure 3 is a top view of the hopper device of Figure 1. Figure 4 is a drawing showing the cooling tube of the hopper device of Figure 2. Figure 5 is a drawing showing a plurality of cooling tubes of Figure 4 connected to communicate with each other. Figure 6 is a side cross-sectional view of the hopper device of Figure 2. Figure 7 is an enlarged view of Figure 6. Hereinafter, various embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. The present invention may be embodied in various different forms and is not limited to the embodiments described herein. To clearly explain the present invention, parts unrelated to the explanation have been omitted, and the same reference numerals are used for identical or similar components throughout the specification. Furthermore, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, and thus the present invention is not necessarily limited to what is illustrated. Thicknesses have been enlarged in the drawings to clearly represent various layers and regions. Additionally, for convenience of explanation, the thickness of some layers and regions has been exaggerated in the drawings. Furthermore, throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Additionally, throughout the specification, the 'upper part', 'upper', 'upper', or 'upper surface' of a component refers to an end, part, section, or surface of a component that is relatively higher in the drawing, and the 'lower part', 'lower', 'lower', or 'lower surface' of a component refers to an end, part, section, or surface of a component that is relatively lower in the drawing. Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a schematic overall configuration of a hopper device (10) equipped with a cooling function according to an embodiment of the present invention (hereinafter referred to as the hopper device (10)), FIG. 2 is a diagram showing the interior of a hopper (100) with the cover (300) of the hopper device (10) of FIG. 1 separated, FIG. 3 is a diagram of the hopper device (10) of FIG. 1 viewed from above, FIG. 4 is a diagram showing a cooling tube (210) of the hopper device (10) of FIG. 2, FIG. 5 is a diagram showing a plurality of cooling tubes (210) of FIG. 4 connected to communicate with each other, and FIG. 6 is a diagram showing a side cross-section of the hopper device (10) of FIG. 2. Referring to FIGS. 1 to 3, the hopper device (10) can cool a relatively high-temperature powder supplied from the upper outside inside the hopp