Kiln steam drainage device

Abstract

The utility model discloses a kiln water vapor discharging device which comprises a kiln, an air outlet assembly is arranged at the top end of the kiln, the air outlet end of the air outlet assembly is connected and communicated with a U-shaped exhaust pipe through a horizontally-arranged first exhaust pipe, a cooling assembly is arranged in the U-shaped exhaust pipe, and a water outlet assembly is arranged at the lowest end of the U-shaped exhaust pipe. According to the utility model, water vapor is effectively liquefied and stored at the bottom end of the U-shaped exhaust pipe through the U-shaped exhaust pipe and the cooling assembly, so that the water vapor is effectively prevented from flowing back into the kiln, and the liquefied water can be effectively discharged under the action of the water outlet assembly; therefore, the device can effectively prevent the corrosion phenomenon in the kiln caused by water backflow, so that the service life of the kiln is effectively prolonged, the physical and chemical indexes of materials in the kiln can be effectively ensured not to be influenced, and the production stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of kiln drainage technology, and in particular to a kiln drainage steam device. Background Technology

[0002] Ternary cathode materials are among the most critical materials in lithium-ion batteries, directly impacting battery energy density, cycle life, and safety. The sintering process is the most crucial step in preparing ternary cathode materials, significantly influencing their structure and performance. The sintering reaction of ternary materials is a solid-state reaction. At a certain temperature, the precursor, lithium hydroxide, and additive elements undergo a solid-state reaction to generate LiMO2. After a period of sintering, through nucleation and grain formation, a complete crystalline layered structure is produced.

[0003] The reaction equations for the hydroxide precursor with lithium hydroxide / lithium carbonate are as follows:

[0004] M(OH)2+LiOH.H2O+0.25O2=LiMO2+2.5H2O↑ (1)

[0005] M(OH)2+0.5Li2CO3+0.25O2=LiMO2+0.5CO2↑+H2O↑ (2)

[0006] Regardless of the type of lithium salt raw material used in ternary materials, the sintering reaction will inevitably produce water vapor. Timely removal of the water vapor produced by the reaction will further promote the forward reaction, which is more beneficial to the physical and chemical properties of ternary materials and equipment.

[0007] Currently, most sintering kilns use horizontal and vertical exhaust pipes. Since the sintering temperature of ternary materials is above 700℃, the exhaust water vapor temperature is high. When the ambient temperature is low, the water vapor easily condenses into liquid water at the tail of the exhaust pipe and flows back into the kiln. Long-term water backflow causes corrosion inside the kiln, shortens the service life of the kiln, and affects the physical and chemical indicators of the materials inside the kiln. This can lead to abnormal material increases and increased production costs during the production process, resulting in unstable production. Utility Model Content

[0008] (I) Purpose of the utility model

[0009] To address the technical problems existing in the background art, this utility model proposes a kiln drainage steam device. This device effectively liquefies water vapor and stores it at the bottom of the U-shaped exhaust pipe through a U-shaped exhaust pipe and a cooling component, thereby effectively preventing water vapor from flowing back into the kiln. Furthermore, the liquefied water can be effectively discharged under the action of the water outlet component. Thus, this device can effectively prevent water backflow from causing rust inside the kiln, thereby effectively increasing the service life of the kiln and ensuring that the physical and chemical indicators of the materials inside the kiln are not affected, thus ensuring the stability of production.

[0010] (II) Technical Solution

[0011] This utility model provides a kiln drainage steam device, including a kiln, with an exhaust component at the top of the kiln, the exhaust end of the exhaust component being connected to and communicating with a U-shaped exhaust pipe through a horizontally arranged first exhaust pipe, a cooling component being provided inside the U-shaped exhaust pipe, and a water outlet component being provided at the lowest end of the U-shaped exhaust pipe.

[0012] Preferably, the gas outlet assembly includes multiple gas outlet pipes, one end of each of the multiple gas outlet pipes is connected to and communicates with the gas outlet end of the kiln, the other end of each of the multiple gas outlet pipes extends into the second exhaust pipe and is connected to and communicates with the second exhaust pipe, the upper end of the second exhaust pipe is provided with a third exhaust pipe that communicates with the first exhaust pipe, and the third exhaust pipe is provided with a negative pressure unit.

[0013] Preferably, the negative pressure unit includes a vacuum pump, which is located inside the third exhaust pipe and is connected to the third exhaust pipe.

[0014] Preferably, the cooling assembly includes a cooling plate, which is connected to the outer end of the U-shaped exhaust pipe and located at the upper arc surface of the U-shaped exhaust pipe.

[0015] Preferably, the water outlet assembly includes a drain pipe, the bottom end of the U-shaped exhaust pipe is provided with a water outlet, one end of the drain pipe is connected to the U-shaped exhaust pipe and communicates with the water outlet, and a solenoid valve is provided at the water outlet.

[0016] Preferably, it also includes a water level controller, which is located inside the U-shaped exhaust pipe and connected to its inner wall, and the water level controller is electrically connected to the solenoid valve.

[0017] Preferably, the end of the U-shaped exhaust pipe away from the first exhaust pipe is provided with a porous filter membrane.

[0018] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0019] In this invention, the device effectively liquefies water vapor and stores it at the bottom of the U-shaped exhaust pipe through a U-shaped exhaust pipe and cooling components, thereby effectively preventing water vapor from flowing back into the kiln. Furthermore, the liquefied water can be effectively discharged through the water outlet component. This device effectively prevents water backflow from causing corrosion inside the kiln, thus effectively increasing the service life of the kiln and ensuring that the physicochemical properties of the materials inside the kiln are not affected, thereby ensuring production stability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a kiln drainage steam device proposed in this utility model.

[0021] Reference numerals: 1. Kiln; 2. U-shaped exhaust pipe; 3. First exhaust pipe; 4. Gas outlet pipe; 5. Second exhaust pipe; 6. Third exhaust pipe; 7. Air pump; 8. Cooling plate; 9. Drain pipe; 10. Water level controller; 11. Porous filter membrane. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, such as welding, riveting, or bonding; it can also be a detachable connection, such as threaded connection, keyed connection, or pin connection; or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; or it can be a connection within 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.

[0025] like Figure 1 As shown, the present invention proposes a kiln drainage steam device, including a kiln 1. The top of the kiln 1 is provided with a steam outlet component. The steam outlet end of the steam outlet component is connected to and communicates with the U-shaped exhaust pipe 2 through a horizontally arranged first exhaust pipe 3. The U-shaped exhaust pipe 2 is provided with a cooling component. The lowest end of the U-shaped exhaust pipe 2 is provided with a water outlet component.

[0026] In this invention, when the device is needed, the steam generated during the production of the kiln 1 can be effectively discharged through the venting device. Under the action of the first exhaust pipe 3, the steam enters the U-shaped exhaust pipe 2. The steam is cooled into water by the cooling component in the U-shaped exhaust pipe 2 and is located at the lowest end of the U-shaped exhaust pipe 2 under the action of gravity. After a period of use, the water located at the bottom end of the U-shaped exhaust pipe 2 can be discharged through the water outlet component. This device effectively liquefies and stores the steam at the bottom end of the U-shaped exhaust pipe 2 through the U-shaped exhaust pipe 2 and the cooling component, thereby effectively preventing the steam from flowing back into the kiln 1. Under the action of the water outlet component, the liquefied water can also be effectively discharged. Thus, this device can effectively prevent water backflow from causing corrosion inside the kiln 1, thereby effectively increasing the service life of the kiln 1 and ensuring that the physical and chemical indicators of the kiln 1 are not affected, thus ensuring the stability of production.

[0027] In an optional embodiment, the gas venting assembly includes multiple gas venting pipes 4. One end of each of the multiple gas venting pipes 4 is connected to and communicates with the gas venting end of the kiln 1. The other end of each of the multiple gas venting pipes 4 extends into the second exhaust pipe 5 and is connected to and communicates with the second exhaust pipe 5. The upper end of the second exhaust pipe 5 is provided with a third exhaust pipe 6 that communicates with the first exhaust pipe 3. The third exhaust pipe 6 is provided with a negative pressure unit. The multiple gas venting pipes 4 can effectively connect the gas venting end of the kiln 1 with the second exhaust pipe 5. The negative pressure unit in the third exhaust pipe 6 can effectively discharge the water vapor in the second exhaust pipe 5 and the kiln 1 into the U-shaped exhaust pipe 2, thereby completing the gas venting of the kiln 1.

[0028] In an optional embodiment, the negative pressure unit includes a vacuum pump 7, which is located inside and connected to the third exhaust pipe 6. The vacuum pump 7 can draw water vapor into the U-shaped exhaust pipe 2.

[0029] In an optional embodiment, the cooling assembly includes a cooling plate 8 connected to the outer end of the U-shaped exhaust pipe 2 and located at the upper arc surface of the U-shaped exhaust pipe 2. Since the cooling plate 8 is located at the upper arc surface of the U-shaped exhaust pipe 2, water vapor can be liquefied at the arc surface of the U-shaped exhaust pipe 2 during operation, thus remaining at the bottom of the U-shaped exhaust pipe 2, preventing backflow and reverse flow.

[0030] In an optional embodiment, the water outlet assembly includes a drain pipe 9, and the bottom end of the U-shaped exhaust pipe 2 is provided with a water outlet. One end of the drain pipe 9 is connected to the U-shaped exhaust pipe 2 and communicates with the water outlet. A solenoid valve is provided at the water outlet. The water outlet and the drain pipe 9 can effectively drain the U-shaped exhaust pipe 2. Furthermore, under the action of the solenoid valve, the water outlet can be closed when not draining, thereby improving the stability of the device operation.

[0031] In an optional embodiment, a water level controller 10 is also included. The water level controller 10 is located inside the U-shaped exhaust pipe 2 and connected to its inner wall. The water level controller 10 is electrically connected to the solenoid valve. The water level controller 10 detects the water level in the U-shaped exhaust pipe 2 and controls the opening and closing of the solenoid valve, thereby making it easier to discharge water from the U-shaped exhaust pipe 2 without the need for manual opening and closing of the solenoid valve, effectively reducing the workload of the staff.

[0032] In an optional embodiment, a porous filter membrane 11 is provided at the end of the U-shaped exhaust pipe 2 away from the first exhaust pipe 3. The porous filter membrane 11 can effectively filter the dust generated during the production of the kiln 1, thereby effectively preventing the dust from being directly discharged and causing air pollution. The U-shaped exhaust pipe 2 is provided with a first through hole near the porous filter membrane 11. A sealing plate is rotatably provided at the first through hole for sealing the first through hole. The sealing plate is fixed to the U-shaped exhaust pipe 2 by a bolt (since bolt fixing is a very common existing technology, it will not be described in detail again). After a period of use, the connection between the sealing plate and the U-shaped exhaust pipe 2 can be removed, thereby opening the first through hole. The operator can clean the porous filter membrane 11 through the first through hole, thereby effectively preventing the porous filter membrane 11 from becoming clogged, which would cause the device to malfunction and effectively improve the stability of the device operation.

[0033] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A kiln drainage steam device, characterized in that, It includes a kiln (1), the top of which is provided with an air outlet component. The air outlet end of the air outlet component is connected to and communicates with a U-shaped exhaust pipe (2) through a horizontally arranged first exhaust pipe (3). The U-shaped exhaust pipe (2) is provided with a cooling component, and the lowest end of the U-shaped exhaust pipe (2) is provided with a water outlet component.

2. The kiln drainage steam device according to claim 1, characterized in that, The gas outlet assembly includes multiple gas outlet pipes (4) and a second exhaust pipe (5). One end of each of the multiple gas outlet pipes (4) is connected to the gas outlet end of the kiln (1) and communicates with each other. The other end of each of the multiple gas outlet pipes (4) extends into the second exhaust pipe (5) and is connected to the second exhaust pipe (5) and communicates with each other. The upper end of the second exhaust pipe (5) is provided with a third exhaust pipe (6) that communicates with each other. The third exhaust pipe (6) is connected to the first exhaust pipe (3) and communicates with each other. The third exhaust pipe (6) is provided with a negative pressure unit.

3. The kiln drainage steam device according to claim 2, characterized in that, The negative pressure unit includes a vacuum pump (7), which is located inside the third exhaust pipe (6) and is connected to the third exhaust pipe (6).

4. A kiln drainage steam device according to claim 1, characterized in that, The cooling assembly includes a cooling plate (8), which is connected to the outer end of the U-shaped exhaust pipe (2) and located at the upper arc surface of the U-shaped exhaust pipe (2).

5. A kiln drainage steam device according to claim 1, characterized in that, The water outlet assembly includes a drain pipe (9), and the bottom end of the U-shaped exhaust pipe (2) is provided with a water outlet. One end of the drain pipe (9) is connected to the U-shaped exhaust pipe (2) and communicates with the water outlet. A solenoid valve is provided at the water outlet.

6. A kiln drainage steam device according to claim 5, characterized in that, It also includes a water level controller (10), which is located inside the U-shaped exhaust pipe (2) and connected to its inner wall. The water level controller (10) is electrically connected to the solenoid valve.

7. A kiln drainage steam device according to claim 1, characterized in that, The U-shaped exhaust pipe (2) has a porous filter membrane (11) at the end away from the first exhaust pipe (3).

Images