CN216245609U

CN216245609U - Exhaust device of treatment furnace

Info

Publication number: CN216245609U
Application number: CN202122326949.9U
Authority: CN
Inventors: 欧文龙; 黄剑峰; 杨伟豪; 华昌亨; 招志锋
Original assignee: Foshan Tianlu Intelligent Equipment Technology Co Ltd
Current assignee: Foshan Tianlu Intelligent Equipment Technology Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-04-08
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a treatment furnace exhaust device which comprises a fan, a main pipe, branch pipes, an exhaust pipe and a bypass pipe, wherein the fan is respectively communicated with the main pipe and the exhaust pipe, the main pipe is communicated with the branch pipes, the branch pipes are respectively communicated with a plurality of treatment furnaces of a flue gas treatment system produced by carbonizing a lithium battery anode material, the bypass pipe is led out from the branch pipes, the bypass pipe comprises a first bypass branch pipe and a second bypass branch pipe, the first bypass branch pipe is communicated with a replacement chamber of the flue gas treatment system produced by carbonizing the lithium battery anode material, and the second bypass branch pipe is communicated with the treatment furnaces close to the replacement chamber. By adopting the utility model, the smoke can be smoothly discharged, and the smoke in the replacement chamber can be absorbed simultaneously, so that the replacement chamber is prevented from being polluted and the replacement efficiency is prevented from being influenced.

Description

Exhaust device of treatment furnace

Technical Field

The utility model relates to lithium battery negative electrode material production equipment, in particular to an exhaust device of a treatment furnace.

Background

In the rapid development of the domestic power lithium battery industry at present, graphite is often used as a main material for a lithium battery cathode in the industry, the production process of the lithium battery cathode material often comprises a replacement feeding process and a high-temperature carbonization process, the high-temperature carbonization process is carried out in a reaction furnace, in the process, tar-containing smoke is generated in the reaction furnace, and the smoke is introduced into a treatment furnace for combustion treatment and then is discharged. Because the replacement chamber for replacing the feeding material is communicated with the reaction furnace, and the reaction furnace is communicated with the treatment furnace, part of smoke enters the replacement chamber from the treatment furnace or the reaction furnace in the production process, thereby influencing the replacement efficiency of the replacement chamber and polluting the replacement chamber. Therefore, the flue gas in the replacement chamber needs to be treated together.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an exhaust device of a treatment furnace, which can smoothly exhaust smoke, can simultaneously absorb the smoke in a replacement chamber, and prevents the replacement chamber from being polluted and the replacement efficiency from being influenced.

In order to solve the technical problem, the utility model provides a treatment furnace exhaust device which is used for a flue gas treatment system in the carbonization production of lithium battery cathode materials and used for discharging treated flue gas.

The bypass pipe comprises a first bypass branch pipe and a second bypass branch pipe, the first bypass branch pipe is communicated with a replacement chamber of a flue gas treatment system produced by carbonizing the lithium battery anode material, the second bypass branch pipe is communicated with the treatment furnace close to the replacement chamber, and the first bypass branch pipe can extract flue gas flowing into the replacement chamber and lead the flue gas into the second bypass branch pipe.

Wherein the first bypass branch pipe is led out from the branch pipe near one end of the replacement room, and the ends of the first bypass branch pipe are respectively inserted into the front and the rear of the replacement room.

The second bypass branch pipe is led out from the first bypass branch pipe, and the tail end of the second bypass branch pipe is inserted into the air inlet pipe at the inlet of the treatment furnace.

The second bypass branch pipe is internally provided with a one-way valve, and the flow direction of the one-way valve is from the first bypass branch pipe to an air inlet pipe at the inlet of the treatment furnace.

The fan comprises an air box and a motor, fan blades of the fan are arranged in the air box, and the motor is arranged outside the air box and used for driving the fan blades of the fan to rotate.

The number of the fans is 2, and the fans are respectively located on two sides of the header pipe and communicated with the header pipe.

Wherein, it still includes valve mechanism to handle stove exhaust apparatus, valve mechanism includes the opening-closing plate, the opening-closing plate set up perpendicularly in house steward or in the minute pipe, the opening-closing plate can house steward or the diameter direction of minute pipe slides.

The opening plate is provided with scales, and the opening plate can control the opening degree of the header pipe or the branch pipe according to the scales.

The implementation of the utility model has the following beneficial effects:

the exhaust device of the treatment furnace is provided with the fan, the main pipe, the branch pipes and the bypass pipes, wherein the branch pipes are respectively communicated with the treatment furnaces, and under the action of the fan, the branch pipes collect and guide treated flue gas in the treatment furnaces to the main pipe and finally discharge the flue gas from the main pipe, so that the flue gas is smoothly discharged. Meanwhile, the bypass pipe comprises a first bypass branch pipe and a second bypass branch pipe, the first bypass branch pipe is communicated with the replacement chamber, smoke in the replacement chamber is absorbed and enters the treatment furnace through the second bypass branch pipe, and finally the smoke is discharged from the treatment furnace, so that the smoke in the replacement chamber is absorbed, and the replacement chamber can be prevented from being polluted and the replacement efficiency is prevented from being influenced.

Drawings

FIG. 1 is a schematic view of the structure of a process furnace exhaust apparatus of the present invention;

FIG. 2 is a schematic view of the first bypass branch of the present invention;

fig. 3 is a schematic view of the structure of the valve mechanism of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the utility model is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the utility model.

Referring to fig. 1, the embodiment of the utility model discloses an exhaust device of a treatment furnace 6, which is used for a flue gas treatment system in carbonization production of lithium battery cathode materials to discharge treated flue gas, the exhaust device of the treatment furnace 6 comprises a fan 1, a main pipe 2, branch pipes 3, an exhaust pipe 4 and a bypass pipe 5, the fan 1 provides negative pressure for a pipeline, the fan 1 is respectively communicated with the main pipe 2 and the exhaust pipe 4, and under the action of the fan 1, the flue gas passes through the fan 1 from the main pipe 2 and then is discharged from the exhaust pipe 4. The main pipe 2 is communicated with the branch pipes 3, the branch pipes 3 are respectively communicated with a plurality of treatment furnaces 6 of a flue gas treatment system for lithium battery cathode material carbonization production, flue gas in the treatment furnaces 6 is firstly discharged to the branch pipes 3, then is concentrated in the main pipe 2, and finally is discharged from the main pipe 2, so that the flue gas is smoothly discharged.

The bypass pipe 5 is led out from the branch pipe 3, the bypass pipe 5 comprises a first bypass branch pipe 51 and a second bypass branch pipe 52, the first bypass branch pipe 51 is communicated with a replacement chamber 7 of a flue gas treatment system produced by carbonizing the lithium battery cathode material to absorb flue gas in the replacement chamber 7, the second bypass branch pipe 52 is communicated with the treatment furnace 6 close to the replacement chamber 7, the first bypass branch pipe 51 can extract flue gas flowing into the replacement chamber 7 and lead the flue gas into the second bypass branch pipe 52, then the flue gas enters the treatment furnace 6 through the second bypass branch pipe 52, and finally the flue gas is discharged from the treatment furnace 6, so that absorption of the flue gas in the replacement chamber 7 is realized, pollution to the replacement chamber 7 can be prevented, and replacement efficiency is influenced.

Referring to fig. 2, the bypass pipe 5 is located near the displacement chamber 7, and specifically, the first bypass branch pipe 51 is led out from the branch pipe 3 near one end of the displacement chamber 7, the front part of the displacement chamber 7 is used for feeding, the rear part of the displacement chamber 7 is communicated with the reaction furnace, and the front pipe 511 and the rear pipe 512 of the first bypass branch pipe 51 are respectively inserted into the front part and the rear part of the displacement chamber 7, so that the flue gas at the front part of the displacement chamber 7 and the flue gas at the rear part of the displacement chamber 7 can be fully absorbed. The first bypass branch 51 sucks in residual and inflowing flue gases during the material entering the front part of the displacement chamber 7 and moving to the rear part of the displacement chamber 7. The second bypass branch pipe 52 is led out from the first bypass branch pipe 51, and the end of the second bypass branch pipe 52 is inserted into the intake pipe at the inlet of the treatment furnace 6, so that the flue gas sucked in the first bypass branch pipe 51 can be guided to the treatment furnace 6 for treatment and then discharged. In order to prevent the flue gas in the inlet pipe 61 at the inlet of the treatment furnace 6 from directly flowing out through the branch pipe 3 without being treated, the first bypass branch pipe 51 is provided with a one-way valve 53, and the flow direction of the one-way valve 53 is from the first bypass branch pipe 51 to the inlet pipe 61 at the inlet of the treatment furnace 6, so that the flue gas can only flow from the first bypass branch pipe 51 to the treatment furnace 6, thereby ensuring that the flue gas is treated.

Preferably, fan 1 includes bellows 11 and motor 12, the flabellum of fan 1 is located in bellows 11, motor 12 is located outside bellows 11, be used for the drive fan 1's flabellum rotates, because the flue gas temperature is higher, can reach 800 ℃ -1000 ℃, fan 1 long-term operation probably produces the bad scheduling problem of heat dissipation, consequently fan 1 is split type fan 1, motor 12 arranges in outward fan 1 body is outside, thereby is convenient for motor 12's heat dissipation, it is right also to be convenient for when the problem appears motor 12 or bellows 11 is maintained. Preferably, the number of the fans 1 is 2, the fans are respectively located on two sides of the main pipe 2 and communicated with the main pipe 2, one fan is a working fan, the other fan is a standby fan, when one fan is damaged or in a maintenance state, the other standby fan can be started, and therefore normal operation of production is guaranteed.

Referring to fig. 3, in order to control the flow rate and the flow velocity of the main pipe 2 and the branch pipes 3, and thus control the discharge velocity of the flue gas, the exhaust device of the treatment furnace 6 further includes a valve mechanism 8, the valve mechanism 8 includes a split plate 81, the split plate 81 is vertically disposed in the main pipe 2 or the branch pipes 3, the split plate 81 can slide in the diameter direction of the main pipe 2 or the branch pipes 3, and the split plate 81 is equivalent to control the pipe diameter of the main pipe 2 or the branch pipes 3 during the sliding process, so as to control the flow rate and the flow velocity of the main pipe 2 and the branch pipes 3. In order to make control more accurate, be equipped with the scale on the opening plate 81, opening plate 81 can be according to scale control house steward 2 or divide the degree of opening and shutting of pipe 3 to realize accurate control.

The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the utility model, and such modifications and enhancements are also considered to be within the scope of the utility model.

Claims

1. A processing furnace exhaust device is used for a flue gas processing system for carbonization production of lithium battery cathode materials to discharge processed flue gas, and is characterized by comprising a fan, a main pipe, branch pipes, an exhaust pipe and bypass pipes, wherein the fan is respectively communicated with the main pipe and the exhaust pipe, the main pipe is communicated with the branch pipes, the branch pipes are respectively communicated with a plurality of processing furnaces of the flue gas processing system for carbonization production of lithium battery cathode materials, and the bypass pipes are led out from the branch pipes;

2. The process furnace exhaust gas apparatus according to claim 1, wherein the first bypass branch pipe is led out from the branch pipe near one end of the replacement room, and ends of the first bypass branch pipe are inserted into front and rear portions of the replacement room, respectively.

3. The process furnace exhaust apparatus according to claim 1, wherein the second bypass branch is led out from the first bypass branch, and a tip end of the second bypass branch is inserted into an intake pipe at an inlet of the process furnace.

4. A process furnace exhaust according to claim 3, wherein a one-way valve is provided in the second bypass branch, the one-way valve being in flow communication from the first bypass branch to the inlet duct at the inlet of the process furnace.

5. The exhaust device of the processing furnace as claimed in claim 1, wherein the fan comprises a wind box and a motor, and the fan blades of the fan are arranged in the wind box, and the motor is arranged outside the wind box and used for driving the fan blades of the fan to rotate.

6. The process furnace exhaust apparatus according to claim 1, wherein the number of said fans is 2, each located on both sides of and communicating with said header pipe.

7. The process furnace exhaust apparatus according to claim 1, further comprising a valve mechanism including a split plate vertically disposed in the header pipe or the branch pipe, the split plate being slidable in a diameter direction of the header pipe or the branch pipe.

8. The exhaust apparatus for a process furnace according to claim 7, wherein the opening plate is provided with a scale, and the opening plate is capable of controlling the opening/closing degree of the main pipe or the branch pipe according to the scale.