Built-in dust removal device for high-nickel ternary dry furnace

Abstract

The utility model discloses a built -in dust collector for high nickel ternary drying furnace, including drying furnace and spiral feeding equipment, drying furnace one end is provided with feed tank, and one end of spiral feeding equipment extends to the inside of feed tank, and built -in dust collector body is installed on the feed tank, built -in dust collector body includes filter core, support net and connecting ring, the utility model discloses a material is sent into the inside of feed tank after spiral feeding equipment, and the induced draft fan guides the exhaust gas to pass through the filter core and then discharges from the exhaust pipe, and the material dust mixed in the exhaust gas is intercepted in the drying furnace inside by the filter core, because the filter core is located in the drying furnace inside, so the dust that intercepts still can continue to use, thereby reduced the content of dust in the exhaust from the drying furnace, improved the product collection rate in the drying furnace, reduced the production cost.

Description

Technical Field

[0001] This utility model relates to the field of filtration for high-nickel ternary drying furnaces, and in particular to a built-in dust removal device for high-nickel ternary drying furnaces. Background Technology

[0002] High-nickel ternary materials mainly refer to ternary cathode materials with a nickel content of more than 60%. Common types are lithium nickel cobalt manganese oxide (NCM) or lithium nickel cobalt aluminum oxide (NCA). Their core advantage lies in high energy density, which can significantly improve the driving range of electric vehicles. As the nickel content increases, the cobalt content decreases, which reduces the dependence on the scarce metal cobalt and lowers costs.

[0003] Drying is a crucial step in the production of high-nickel ternary materials, directly affecting the content, dispersibility, and batch consistency of magnetic foreign matter. Drying high-nickel ternary materials generates exhaust gas. Because high-nickel ternary materials are highly sensitive to temperature, the dust in the exhaust gas will denature after exiting the drying furnace and become unusable. Therefore, the dust filtered from the exhaust gas is usually collected separately as waste. However, this results in a large amount of material dust being carried in the exhaust gas, affecting the product collection rate within the furnace and increasing production costs. To address this issue, a built-in dust removal device for high-nickel ternary material drying furnaces is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a built-in dust removal device for a high-nickel ternary drying furnace, so as to solve the problem mentioned in the background art that the exhaust gas carries a large amount of material dust, which affects the product collection rate in the furnace and increases the production cost. The technical solution of this utility model provides a solution that is significantly different from the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A built-in dust removal device for a high-nickel ternary drying furnace includes a drying furnace and a screw feeder. A feed box is provided at one end of the drying furnace, and one end of the screw feeder extends into the interior of the feed box. The built-in dust removal device body is installed on the feed box. The built-in dust removal device body includes a filter element, a support mesh, and a connecting ring. A blowpipe is provided inside the filter element, and the filter element is located inside the support mesh. The filter element and the connecting ring are connected by a limiting plate. One end of the support mesh is connected to the limiting plate. A transfer box is provided on one side of the limiting plate, and an exhaust pipe is provided on the side of the transfer box. A steam drum is provided above the transfer box.

[0006] Preferably, the transfer box is equipped with an air guide pipe inside, one end of which is connected to a blow pipe, and the other end of which is connected to an electromagnetic pulse valve, which is connected to a steam drum.

[0007] Preferably, the support mesh is a titanium plate-like structure with dense through holes on its surface. Two support meshes are connected by spot welding. A wire mesh base plate is provided under the support mesh, and the wire mesh base plate is composed of multiple parallel strips.

[0008] Preferably, the filter element is a titanium powder sintered filter element, and at least nine filter elements are provided. Multiple partitions are provided in the middle of the nine filter elements. The partitions and limiting plates are connected by horizontal plates. The horizontal plates are in a disconnected state. A connecting plate is provided at the disconnection point of the horizontal plates. The horizontal plates and the connecting plates are connected by titanium bolts.

[0009] Preferably, a fixing plate is provided on the inner ring surface of the connecting ring, and an mounting plate is provided on one side of the connecting ring. The screw feeder passes through the fixing plate and enters the interior of the feed box. A baffle to prevent dust accumulation is provided on the top of the screw feeder.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention features a built-in dust collector installed on the feed box at one end of the drying oven. A filter element is installed inside the built-in dust collector, and a tail gas pipe is installed on the transfer box on the side of the built-in dust collector. When material is fed into the feed box by a screw feeder, an induced draft fan guides the tail gas through the filter element and out through the tail gas pipe. Material dust mixed in the tail gas is trapped inside the drying oven by the filter element. Because the filter element is located inside the drying oven, the trapped dust can still be used, reducing the dust content in the tail gas discharged from the drying oven, improving the product collection rate inside the drying oven, and reducing production costs. Attached Figure Description

[0011] Figure 1 A schematic diagram of the overall structure of the built-in dust removal device for a high-nickel ternary drying furnace; Figure 2 A schematic diagram showing the location of the built-in dust collector body in a high-nickel ternary drying furnace; Figure 3 A schematic diagram of the blow pipe in the built-in dust removal device of a high-nickel ternary drying furnace; Figure 4 A schematic diagram of the electromagnetic pulse valve in the built-in dust removal device of a high-nickel ternary drying furnace; Figure 5 A schematic diagram of the support mesh structure in the built-in dust removal device of a high-nickel ternary drying furnace; Figure 6 This is a schematic diagram of the filter element in the built-in dust removal device for a high-nickel ternary drying furnace.

[0012] In the diagram: 1. Built-in dust removal device body; 2. Filter element; 201. Partition plate; 202. Horizontal plate; 203. Connecting plate; 204. Limiting plate; 3. Pulse jet pipe; 301. Air guide pipe; 4. Steam drum; 401. Electromagnetic pulse valve; 5. Support mesh; 501. Wire mesh base plate; 6. Connecting ring; 601. Transfer box; 602. Exhaust pipe; 603. Fixing plate; 604. Mounting plate; 7. Baffle. Detailed Implementation

[0013] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-6This utility model discloses a built-in dust removal device for a high-nickel ternary drying furnace, comprising a drying furnace and a screw feeding device. A feeding box is provided at one end of the drying furnace, and one end of the screw feeding device extends into the interior of the feeding box. The device is characterized in that: the built-in dust removal device body 1 is installed on the feeding box, and includes a filter element 2, a support mesh 5, and a connecting ring 6. A blowpipe 3 is provided inside the filter element 2, and the filter element 2 is located inside the support mesh 5. The filter element 2 and the connecting ring 6 are connected by a limiting plate 204. One end of the support mesh 5 is connected to the limiting plate 204. A transfer box 601 is provided on one side of the limiting plate 204, and a tail gas pipe 602 is provided on the side of the transfer box 601. A steam drum 4 is provided above the transfer box 601, and a guide pipe 301 is provided inside the transfer box 601. One end of the guide pipe 301 is connected to the blowpipe 3, and the other end of the guide pipe 301 is connected to an electromagnetic pulse valve 401, which is connected to the steam drum 4.

[0017] Example 1: Please refer to Figure 1-6 In this embodiment of the utility model, a built-in dust removal device for a high-nickel ternary drying furnace is provided. The filter element 2 is a titanium powder sintered filter element. At least nine filter elements 2 are provided. The nine filter elements 2 are arranged in three layers, with three in each layer. Multiple partitions 201 are provided in the middle of the nine filter elements 2. The partitions 201 and the limiting plate 204 are connected by a horizontal plate 202. Since the internal space of the built-in dust removal device body 1 is small, the horizontal plate 202 is in a disconnected state. A connecting plate 203 is provided at the disconnection point of the horizontal plate 202. The horizontal plate 202 and the connecting plate 203 are connected by titanium bolts, which improves the disassembly and assembly efficiency of the horizontal plate 202 and facilitates the later disassembly and replacement of the filter elements 2.

[0018] After the material is fed into the feed box by the screw feeder, the exhaust gas is guided by the blower to pass through the filter element 2 and then discharged from the exhaust pipe 602. The material dust mixed in the exhaust gas is trapped inside the drying oven by the filter element 2. Since the filter element 2 is located inside the drying oven, the trapped dust can still be used, thereby reducing the dust content in the exhaust gas discharged from the drying oven, improving the product collection rate in the drying oven, and reducing production costs. Meanwhile, each filter element 2 is composed of three sections of titanium powder sintered filter elements. The filtration accuracy of filter element 2 is controlled at 20um~25um. The axial density of the blow holes on the surface of the blow pipe 3 is increased. The diameter of the blow holes is 5mm and the spacing between the blow holes is 50mm. The electromagnetic pulse valve 401 sprays air from the inside of filter element 2 to the surface of filter element 2 in real time through the blow pipe 3 to achieve the effect of cleaning the dust on the surface of filter element 2, thereby ensuring the filtration effect of filter element 2.

[0019] Example 2: Please refer to Figure 1-6The difference from Example 1 is that the support mesh 5 is a titanium plate structure with dense through holes on its surface. The two support meshes 5 are connected by spot welding. A wire mesh base plate 501 is provided under the support mesh 5. The wire mesh base plate 501 is composed of multiple parallel strips, or it can be composed of multiple steel pipes and round bars. A fixing plate 603 is provided on the inner ring surface of the connecting ring 6. An mounting plate 604 is provided on one side of the connecting ring 6. The screw feeder passes through the fixing plate 603 and enters the interior of the feed box. A baffle 7 is provided on the top of the screw feeder.

[0020] The support mesh 5 and the wire mesh base plate 501 can prevent the filter element 2 from being crushed and falling into the drying oven. The baffle 7 is used to prevent dust inside the drying oven from accumulating on the screw feeder. The baffle 7 is a triangular structure with the sharp corners facing upwards.

[0021] The working principle of this utility model is as follows: After the material is fed into the feed box by the screw feeder, the exhaust gas is guided by the blower to pass through the filter element 2 and then discharged from the exhaust pipe 602. The material dust mixed in the exhaust gas is trapped inside the drying oven by the filter element 2. Since the filter element 2 is located inside the drying oven, the trapped dust can still be used, thereby reducing the dust content in the exhaust gas discharged from the drying oven, improving the product collection rate in the drying oven, and reducing production costs.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A built-in dust removal device for a high-nickel ternary drying furnace, comprising a drying furnace and a screw feeder, wherein a feed box is provided at one end of the drying furnace, and one end of the screw feeder extends into the interior of the feed box, characterized in that: The built-in dust removal device body (1) is installed on the feed box. The built-in dust removal device body (1) includes a filter element (2), a support net (5) and a connecting ring (6). A blow pipe (3) is provided inside the filter element (2). The filter element (2) is located inside the support net (5). The filter element (2) and the connecting ring (6) are connected by a limiting plate (204). One end of the support net (5) is connected to the limiting plate (204). A transfer box (601) is provided on one side of the limiting plate (204). A tail gas pipe (602) is provided on the side of the transfer box (601). A steam drum (4) is provided above the transfer box (601).

2. The built-in dust removal device for a high-nickel ternary drying furnace according to claim 1, characterized in that: The transfer box (601) is equipped with an air guide pipe (301). One end of the air guide pipe (301) is connected to the blow pipe (3), and the other end of the air guide pipe (301) is connected to the electromagnetic pulse valve (401). The electromagnetic pulse valve (401) is connected to the steam drum (4).

3. The built-in dust removal device for a high-nickel ternary drying furnace according to claim 1, characterized in that: The support mesh (5) is a titanium plate structure with dense through holes on its surface. Two support meshes (5) are connected by spot welding. A wire mesh base plate (501) is provided under the support mesh (5). The wire mesh base plate (501) is composed of multiple parallel strips.

4. The built-in dust removal device for a high-nickel ternary drying furnace according to claim 1, characterized in that: The filter element (2) is a titanium powder sintered filter element. There are at least nine filter elements (2). Multiple partitions (201) are provided in the middle of the nine filter elements (2). The partitions (201) and the limiting plate (204) are connected by a horizontal plate (202). The horizontal plate (202) is in a disconnected state. A connecting plate (203) is provided at the disconnection point of the horizontal plate (202). The horizontal plate (202) and the connecting plate (203) are connected by titanium bolts.

5. The built-in dust removal device for a high-nickel ternary drying furnace according to claim 1, characterized in that: A fixing plate (603) is provided on the inner ring surface of the connecting ring (6), and an mounting plate (604) is provided on one side of the connecting ring (6). The screw feeder passes through the fixing plate (603) and enters the interior of the feed box. A baffle (7) is provided on the top of the screw feeder to prevent dust accumulation.

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