Tail gas treatment device for negative electrode material natural gas heating

Abstract

The utility model discloses a tail gas treatment device for natural gas heating of a negative electrode material. The tail gas treatment device comprises a negative electrode material sintering furnace tail gas pipeline, a slurry tank fixedly communicated with one end of the negative electrode material sintering furnace tail gas pipeline, a sealing cover detachably connected to the top of the slurry tank, and a filter plate arranged in the slurry tank, the driving mechanism is arranged at the bottom of the sealing cover, the limiting assembly is arranged in the slurry pond, the driving mechanism comprises a servo motor, a rotating shaft, a mounting frame and a sliding seat, the rotating shaft is fixedly connected to an output shaft of the servo motor, the mounting frame is fixedly connected to the exterior of the rotating shaft, and the sliding seat is fixedly connected to the interior of the mounting frame. The driving mechanism drives the filter plate to rotate and is used in cooperation with the slurry pond, mixing of the negative electrode material sintering furnace tail gas and the gypsum slurry is achieved, the negative electrode material sintering furnace tail gas can be adsorbed and recycled through the filter plate, and therefore the tail gas treatment efficiency is improved, and the uniformity of the gypsum slurry is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of tail gas treatment devices of negative electrode materials, in particular to a tail gas treatment device heated by natural gas for negative electrode materials. Background Art

[0002] Lithium-ion battery anode materials can be made of carbon-silicon composite materials. These materials are typically produced using carbon coating, which can constrain and buffer silicon volume expansion, prevent agglomeration of active nanoparticles, prevent electrolyte center penetration, and maintain a stable cross-section. High-temperature sintering is an essential step in the preparation of lithium-ion battery anode materials. Because the precursors for these anode materials are often a mixture of graphite and asphalt, the high-temperature sintering process generates a large amount of flue gas containing sulfur dioxide and other waste gases. To prevent air pollution, exhaust treatment equipment absorbs and removes the sulfur dioxide from the exhaust gas during discharge.

[0003] In the process of treating the tail gas from heating the negative electrode material with natural gas, a tail gas treatment device is required. In the existing technology, gypsum slurry is sprayed inside the shell of the tail gas treatment tower to react with the sulfur-containing gas to produce a neutralization reaction, thereby removing the sulfide in the gas. In order to prevent the gypsum slurry in the tail gas treatment tower from settling, the gypsum slurry needs to be stirred continuously. The commonly used stirring facility is to use a driving mechanism to drive the stirring blade for stirring. However, since the position of the stirring blade is relatively fixed, the uniformity of the gypsum slurry is poor, which affects the tail gas treatment effect. Summary of the Invention

[0004] The present invention aims to solve the problem in the prior art that the position of the stirring blades in the tail gas treatment tower is relatively fixed, resulting in poor uniformity of the gypsum slurry and affecting the tail gas treatment effect. The present invention proposes the following technical solutions:

[0005] The tail gas treatment device for heating the negative electrode material with natural gas comprises a tail gas pipeline of the negative electrode material sintering furnace, a slurry pool fixedly connected to one end of the tail gas pipeline of the negative electrode material sintering furnace, a sealing cover detachably connected to the top of the slurry pool, a filter plate arranged inside the slurry pool, a driving mechanism arranged at the bottom of the sealing cover, and a limit assembly arranged inside the slurry pool.

[0006] The driving mechanism includes a servo motor, a rotating shaft, a mounting frame, and a slide. The rotating shaft is fixedly connected to the output shaft of the servo motor, the mounting frame is fixedly connected to the outside of the rotating shaft, and the slide is fixedly connected to the inside of the mounting frame.

[0007] The limiting assembly includes a mounting groove, a return spring, an abutment block, a shift rod, and an abutment rod. The return spring is fixedly connected to the inside of the mounting groove, the abutment block is fixedly connected to the end of the return spring away from the mounting groove, the shift rod is fixedly connected to the top of the abutment block, and the abutment rod is fixedly connected to the side of the abutment block away from the return spring.

[0008] The filter plate is driven to rotate by a driving mechanism and used in conjunction with a limiting component. This not only achieves the mixing of the tail gas from the negative electrode material sintering furnace and the gypsum slurry, but also can adsorb and recover the tail gas from the negative electrode material sintering furnace through the filter plate, thereby improving the tail gas treatment efficiency.

[0009] As a preferred embodiment of the above technical solution, the servo motor is fixedly installed on the bottom of the sealing cover, and the servo motor and the sealing cover are fixed by bolts.

[0010] The servo motor is detachable, which makes it easier to inspect and repair the drive mechanism.

[0011] As a preferred embodiment of the above technical solution, there are two installation frames, which are symmetrically distributed outside the rotating shaft. The rotating shaft and the installation frames are both rotatably connected to the inside of the slurry pool.

[0012] The installation frame is provided to facilitate the installation, use and replacement of the two filter plates.

[0013] As a preferred embodiment of the above technical solution, the number of the slides is four, and the four slides are symmetrically distributed in groups of two inside the two mounting frames. The filter plate is slidably connected to the inside of the mounting frame, and a movable opening adapted to the filter plate is opened inside the mounting frame.

[0014] Under the limitation of the sliding seat, the limiting effect of the filter plate is further improved.

[0015] As a preferred embodiment of the above technical solution, the mounting groove is opened on one side of the top of the mounting frame, the outer diameters of the reset spring and the abutment block are adapted to the inner diameter of the mounting groove, and the end of the abutment rod away from the abutment block abuts against the outer wall of the filter plate.

[0016] The elastic force of the return spring further limits and fixes the filter plate through the abutment rod.

[0017] As a preferred embodiment of the above technical solution, the slurry pool is a hollow cylinder, one side of the slurry pool is fixedly connected to a gypsum liquid inlet pipe, the other side of the slurry pool is fixedly connected to a drain pipe, and a solenoid valve is fixedly installed inside the drain pipe.

[0018] Under the control of the solenoid valve and the drain pipe, the used gypsum slurry can be discharged quantitatively.

[0019] The beneficial effects of the utility model are:

[0020] (1) The filter plate is driven to rotate by a driving mechanism and used in conjunction with a slurry pool, which not only achieves the mixing of the tail gas from the negative electrode material sintering furnace and the gypsum slurry, but also can absorb and recover the tail gas from the negative electrode material sintering furnace through the filter plate, thereby improving the tail gas treatment efficiency and ensuring the uniformity of the gypsum slurry;

[0021] (2) Through the elastic force of the reset spring, the abutment rod limits and fixes the filter plate, thereby eliminating the limit on the filter plate and facilitating replacement, thereby improving the reliability and economic benefits of the system and reducing environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Shown is a cutaway perspective view of the structure;

[0023] Figure 2 What is shown is a structural perspective view of the driving mechanism;

[0024] Figure 3 What is shown is the structural stereogram of the filter plate;

[0025] Figure 4 Shown is Figure 3 A schematic diagram of the enlarged structure shown;

[0026] Figure 5 Shown is a structural perspective view.

[0027] In the figure: 1. Exhaust gas pipeline of negative electrode material sintering furnace; 2. Slurry pool; 3. Sealing cover; 4. Filter plate; 5. Driving mechanism; 51. Servo motor; 52. Rotating shaft; 53. Mounting frame; 54. Slide; 6. Limiting assembly; 61. Mounting groove; 62. Return spring; 63. Abutment block; 64. Push rod; 65. Abutment rod; 7. Gypsum liquid inlet pipe; 8. Drain pipe. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0029] Example

[0030] Figures 1 to 5 What is shown is a structural schematic diagram of a specific embodiment of the utility model. Figure 1In the figure, the tail gas treatment device for heating the negative electrode material with natural gas includes a tail gas pipeline 1 of a negative electrode material sintering furnace, a slurry pool 2 fixedly connected to one end of the tail gas pipeline 1 of the negative electrode material sintering furnace, a sealing cover 3 detachably connected to the top of the slurry pool 2, a filter plate 4 arranged inside the slurry pool 2, a driving mechanism 5 arranged at the bottom of the sealing cover 3 and a limiting component 6 arranged inside the slurry pool 2, the driving mechanism 5 includes a servo motor 51, a rotating shaft 52, a mounting frame 53, and a slide 54. The rotating shaft 52 is fixedly connected to the output shaft of the servo motor 51, the mounting frame 53 is fixedly connected to the outside of the rotating shaft 52, and the slide 54 is fixedly connected to the inside of the mounting frame 53.

[0031] The servo motor 51 is fixedly mounted on the bottom of the sealing cover 3, and the servo motor 51 and the sealing cover 3 are fixed by bolts. By setting the servo motor 51 as a detachable design, it is convenient for maintenance.

[0032] Specifically, there are two mounting frames 53 , which are symmetrically distributed outside the rotating shaft 52 . The rotating shaft 52 and the mounting frames 53 are both rotatably connected to the inside of the slurry pool 2 .

[0033] It should be noted that there are four slides 54, which are symmetrically distributed in groups of two inside the two mounting frames 53. The filter plate 4 is slidably connected to the inside of the mounting frame 53, and a moving opening adapted to the filter plate 4 is opened inside the mounting frame 53.

[0034] The servo motor 51 is started by the controller to drive the rotating shaft 52 to rotate, so that the rotating shaft 52 drives the filter plate 4 to rotate through the mounting frame 53, and is used in conjunction with the slurry pool 2. It not only realizes the mixing of the tail gas of the negative electrode material sintering furnace and the gypsum slurry, but also can absorb and recover the tail gas of the negative electrode material sintering furnace through the filter plate 4, thereby improving the tail gas treatment efficiency, helping to maintain the stable operation of the tail gas treatment device, reducing system failures caused by gypsum slurry deposition or scaling, and improving the reliability of the system.

[0035] Figure 3 and Figure 4 In the figure, the limiting assembly 6 includes a mounting groove 61, a return spring 62, abutment block 63, a shift rod 64, and abutment rod 65. The return spring 62 is fixedly connected to the inside of the mounting groove 61, the abutment block 63 is fixedly connected to the end of the return spring 62 away from the mounting groove 61, the shift rod 64 is fixedly connected to the top of the abutment block 63, and the abutment rod 65 is fixedly connected to the side of the abutment block 63 away from the return spring 62.

[0036] Among them, the mounting groove 61 is opened on one side of the top of the mounting frame 53, the outer diameters of the reset spring 62 and the abutment block 63 are adapted to the inner diameter of the mounting groove 61, and the end of the abutment rod 65 away from the abutment block 63 abuts against the outer wall of the filter plate 4.

[0037] Through the elastic force of the return spring 62, the abutment rod 65 limits and fixes the filter plate 4. By toggling the toggle rod 64, the abutment block 63 and the abutment rod 65 are driven to move, thereby achieving the effect of removing the limit of the filter plate 4 and facilitating replacement, thereby improving the reliability and economic benefits of the system, and at the same time reducing environmental pollution and waste emissions.

[0038] Figure 5 In the figure, the slurry pool 2 is a hollow cylinder. One side of the slurry pool 2 is fixedly connected to a gypsum liquid inlet pipe 7, and the other side of the slurry pool 2 is fixedly connected to a drain pipe 8. A solenoid valve is fixedly installed inside the drain pipe 8.

[0039] By providing a gypsum liquid inlet pipe 7, it is convenient to inject the gypsum slurry into the slurry pool 2 to achieve rapid adsorption and separation of sulfur dioxide in the tail gas. By providing a solenoid valve and a drain pipe 8, it is convenient to discharge the used gypsum slurry quantitatively.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A tail gas treatment device for heating anode material with natural gas, comprising a tail gas pipeline (1) for anode material sintering furnace, a slurry pool (2) fixedly connected to one end of the tail gas pipeline (1) for anode material sintering furnace, a sealing cover (3) detachably connected to the top of the slurry pool (2), a filter plate (4) arranged inside the slurry pool (2), a driving mechanism (5) arranged at the bottom of the sealing cover (3), and a limit assembly (6) arranged inside the slurry pool (2), characterized in that: The driving mechanism (5) comprises a servo motor (51), a rotating shaft (52), a mounting frame (53), and a slide (54); the rotating shaft (52) is fixedly connected to the output shaft of the servo motor (51); the mounting frame (53) is fixedly connected to the outside of the rotating shaft (52); and the slide (54) is fixedly connected to the inside of the mounting frame (53); The limiting assembly (6) comprises a mounting groove (61), a return spring (62), an abutting block (63), a shifting rod (64), and an abutting rod (65); the return spring (62) is fixedly connected to the interior of the mounting groove (61); the abutting block (63) is fixedly connected to one end of the return spring (62) away from the mounting groove (61); the shifting rod (64) is fixedly connected to the top of the abutting block (63); and the abutting rod (65) is fixedly connected to one side of the abutting block (63) away from the return spring (62).

2. The tail gas treatment device for heating the negative electrode material with natural gas according to claim 1, characterized in that: The servo motor (51) is fixedly mounted on the bottom of the sealing cover (3), and the servo motor (51) and the sealing cover (3) are fixed by bolts.

3. The tail gas treatment device for heating the negative electrode material with natural gas according to claim 1, characterized in that: There are two mounting frames (53), which are symmetrically distributed outside the rotating shaft (52). The rotating shaft (52) and the mounting frames (53) are both rotatably connected to the inside of the slurry pool (2).

4. The tail gas treatment device for heating the negative electrode material with natural gas according to claim 1, characterized in that: The number of the slide seats (54) is four, and the four slide seats (54) are symmetrically distributed in the interior of the two mounting frames (53) in groups of two. The filter plate (4) is slidably connected to the interior of the mounting frame (53), and a moving opening adapted to the filter plate (4) is opened in the interior of the mounting frame (53).

5. The tail gas treatment device for heating the negative electrode material with natural gas according to claim 1, characterized in that: The mounting groove (61) is opened on one side of the top of the mounting frame (53); the outer diameters of the reset spring (62) and the abutment block (63) are adapted to the inner diameter of the mounting groove (61); and the end of the abutment rod (65) away from the abutment block (63) abuts against the outer wall of the filter plate (4).

6. The tail gas treatment device for heating the negative electrode material with natural gas according to claim 1, characterized in that: The slurry pool (2) is a hollow cylinder. One side of the slurry pool (2) is fixedly connected to a gypsum liquid inlet pipe (7), and the other side of the slurry pool (2) is fixedly connected to a drain pipe (8). A solenoid valve is fixedly installed inside the drain pipe (8).

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